Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / G. G. Polyakova, V. V. Stasova, N. V. Pashenova // Russ. J. Plant Physiol. - 2011. - Vol. 58, Is. 5. - P819-827, DOI 10.1134/S1021443711050177. - Cited References: 23. - This work was supported by the Russian Foundation for Basic Research, project no. 09-04-09030. . - 9. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Ophiostomatoid fungi colonize the conducting tissues of conifer stems, the phloem and the xylem. These pathogenic fungi penetrate into the stem through injuries made by xylophagous insects vectoring these pathogens. In this study the response of the phloem of Scotch pine (Pinus sylvestris L.) to wounding (treatment 1) was compared with the response to wounding combined with application of high-molecular-weight compounds isolated from the mycelium of the ophiostomatoid fungus Ceratocystis laricicola Redfern & Minter (treatment 2). Both treatments induced the appearance of necrosis in the inner bark, the formation of periderm separating living and dead tissues, and formation of the callus alongside the wound perimeter. In addition, the bark accumulated lignin, bound proanthocyanidins, and resins, with a parallel decrease in the content of free proanthocyanidins, low-molecular-weight carbohydrates, and non-lignin components of the cell wall (P > 0.95). The size of necrotic spots, as well as changes in the content of most substances, were significantly higher in the treatment 2 than in the treatment 1 (P > 0.95). The accumulation of lignin in cell walls of phloem sieve cells was delayed in the treatment 2 as compared with that in the treatment 1. This suggested that the mycelial extract temporarily inhibited lignification at the early stage of the wound response. This disturbance of the cell wall protective transformation led to the hypothesis that the fungal suppressors retard the repair of inner bark injured by insects, thereby favoring the invasion of conifer tissues by ophiostomatoid fungi.

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[Polyakova, G. G.
Stasova, V. V.
Pashenova, N. V.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Polyakova, G.G.; Stasova, V.V.; Pashenova, N.V.

[Text] / G. G. Polyakova [et al.] // Russ. J. Plant Physiol. - 2008. - Vol. 55, Is. 4. - P496-502, DOI 10.1134/S1021443708040109. - Cited References: 25 . - 7. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: The elicitor activity of compounds extracted from the mycelia of six species of phytopathogenic fungi was assessed from the sizes of necrotic lesions on the external surface of the living trunk phloem of five coniferous species inhabiting Siberia: Siberian larch (Larix sibirica L.), Scotch pine (Pinus sylvestris L.), Siberian spruce (Picea obovata Ledeb.), Siberian fir (Abies sibirica L.), and cedar pine (Pinus sibirica (Rupr.) Mayr.). The compounds for inoculation were extracted from the mycelium of ascomycetes imperfect, and basidium fungi; the living mycelia of these fungi were also used. The fungal extract or mycelium was placed into the hollows 7 mm in diameter in the trunk bark. Infection triggered the formation of hypersensitivity necrotic lesions in the inner bark exceeding in size those appeared after control wounding of four tree species (larch, pine, spruce, and cedar); fir was an exclusion. In experiments with tree trunks and conifer calluses, a dependence of immune response parameters (the sizes of necrotic lesions and the content of lignin and bound proanthocyanidins) on the quantity of the fungal preparation was elucidated. The largest necrotic lesions appeared after injection of 500 mu g of the fungal preparation into the hollow in the trunk, and its higher quantities did not increase the indices measured. The size of the necrotic lesion on the trunk bark is supposed to be used as a promising index characterizing the level of tree immunity and tolerance under various ecological conditions.

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Держатели документа:
[Polyakova, G. G.
Pashenova, N. V.
Polyakov, V. I.
Zrazhevskaya, G. K.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Polyakova, G.G.; Pashenova, N.V.; Polyakov, V.I.; Zrazhevskaya, G.K.

[Text] / V. I. Polyakov [et al.] // Biol. Bull. - 2005. - Vol. 32, Is. 4. - P419-424, DOI 10.1007/s10525-005-0119-x. - Cited References: 16 . - 6. - ISSN 1062-3590РУБ Biology

Аннотация: Two methods for evaluation of pine stand vigor were tested on permanent sample plots near Krasnoyarsk City: visual evaluation and exposure to fungal metabolites. In the first case, forest vigor was estimated using the six-point system of the Sanitary Regulations of the Russian Federation as the mean score for 200 trees on the sample plots. In the second case, the vigor was evaluated from the size of the necrotic spot on inner bark of the tree after inoculation of 22-25 randomly chosen pines with the extract of fungus Ceratocystis laricicola Redfern and Minter. The necrotic spot size was significantly larger in pines from polluted forest as compared to background one. This points to the decrease in infection protection of trees affected by pollution, although visual evaluation of the stand vigor could not distinguish the polluted and background stands.

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Держатели документа:
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Polyakov, V.I.; Polyakova, G.G.; Pashenova, N.V.; Stasova, V.V.

[Text] / I. V. Shein [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 5. - P634-639, DOI 10.1023/A:1025688023862. - Cited References: 27 . - 6. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Pine (Pinus sylvestris L.) callus culture was treated with the mycelium extracts from six Fusarium strains. Previously, pine seedlings were infected with a spore suspension in order to test the pathogenicity of the used strains. Callus culture infection resulted in a decrease in the free proanthocyanidin (PA) and an increase in bound PA content. After treating the calli with all strains except F. oxysporum var. orthoceras, the lignin content became lower than the control one. The most considerable changes involved the p-hydroxybenzoic acid (HBA) content, and its greatest change was observed after treating the calli with F. nivale, when the HBA concentration (1229 mug/g, dry wt) exceeded fourfold the control one. There was a positive correlation (R = 0.81) between the HBA content in the callus culture cells treated with a fungal extract and the virulence of Fusarium strains. At the same time, there was an inverse correlation (R = -0.80) between the lignin content in a callus culture and the fungal virulence; the latter did not affect the contents of both free and bound PA.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Ctr Forest Def Krasnoyarsk Krai, Krasnoyarsk, Russia

Доп.точки доступа:
Shein, I.V.; Andreeva, O.N.; Polyakova, G.G.; Zrazhevskaya, G.K.

[Text] / I. V. Shein [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 4. - P516-521, DOI 10.1023/A:1024776924788. - Cited References: 24 . - 6. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Twelve-day-old seedlings of Scots pine (Pinus sylvestris L.) were infected with a virulent spore suspension of the fungus Fusarium sporotrichiella var. sporotrichioides Bilai. 72 h after infection, the seedlings were divided into infection-susceptible and infection-resistant ones, and phenolic compounds in the seedling hypocotyls were analyzed. Susceptible seedlings contained 4.3-fold less lignins, 1.4-fold less free and bound proanthocyanidins, 12.7-fold less free hydroxybenzoic acids, 56.6-fold less bound hydroxybenzoic acids, 2-fold less quinic acid, and 5.1-fold less shikimic acid as compared to the resistant seedlings. At the same time, L-phenylalanine content was increased 3-fold and that of L-tyrosine, 1.3-fold. The activity of quinate:NAD(P)(+) oxidoreductase and L-phenylalanine ammonia-lyase in the hypocotyls of susceptible seedlings was 2.3-fold and 1.4-fold lower, respectively, whereas the activity of shikimate:NAD(P)(+) oxidoreductase remained unchanged.

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Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Shein, I.V.; Shibistova, O.B.; Zrazhevskaya, G.K.; Astrakhantseva, N.G.; Polyakova, G.G.

[Text] / K. . Jacobs [et al.] // Mycol. Res. - 2000. - Vol. 104. - P1524-1529, DOI 10.1017/S0953756200002689. - Cited References: 39 . - 6. - ISSN 0953-7562РУБ Mycology

Аннотация: Species of Leptographium are well-known inhabitants of conifers in the Northern Hemisphere, in which they cause a blue-stain. They are also known to be associated with insects, especially bark beetles (Coleoptera: Scolytidae). Surveys of dying stands of Siberian fir (Abies sibirica) have resulted in the consistent isolation of an unknown Leptographium from the galleries of the fir sawyer beetle, Monochamus urussovi (Coleoptera: Cerambycidae). This fungus is responsible for the blue-stain in living trees. Comparison with known species of Leptographium led to the conclusion that it had not been previously described, and the name Leptographium sibiricum sp. nov, is introduced here.

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Univ Pretoria, Forestry & Agr Biotechnol Inst, Dept Microbiol & Plant Pathol, ZA-0002 Pretoria, South Africa
RAS, SB, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

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Jacobs, K...; Wingfield, M.J.; Pashenova, N.V.; Vetrova, V.P.

[Text] / M. . Tomoshevich [et al.] // Forest Pathol. - 2013. - Vol. 43, Is. 5. - P345-359, DOI 10.1111/efp.12036. - Cited References: 50. - We thank Dr Richard Baker (FERA, UK), Dr Annie Yart and Dr Marie-Laure Desprez-Loustau (INRA, France) and the two anonymous reviewers for their valuable comments on the manuscript. We also thank Dr Vadim A. Melnik (Botanical Institute of the Russian Academy of Science, Saints Petersburg, Russia) for the identification of some fungi. This study was supported by the EU FP7 Projects PRATIQUE (No 212459) and ISEFOR (No 245268), a grant of President of the Russian Federation (MK-7049.2010.4) and a grant of Mayor of the city Novosibirsk (No 35-10). . - 15. - ISSN 1437-4781РУБ Forestry

Аннотация: In this article, we report observations made during thirteen years on foliar fungal pathogens attacking European and Eurasian woody broadleaved species in Siberian arboreta and cities and discuss the possibility of using such data for detecting exotic pathogens that may represent a danger for European tree and shrub species, should these pathogens be introduced into Europe. A total of 102 cases of symptomatic infections (fungus-host plant associations) involving 67 fungal species were recorded on 50 of the 52 European and Eurasian woody plant species. All but four of the fungi found during the surveys were previously reported in Europe. However, 29 fungus-host plant associations are apparently new to science, suggesting that complexes of cryptic species differing in their host range and geographic range may occur. Seventeen percentage of associations were given a high damage score, that is, more than 50% of plant area was attacked, for at least some localities. In nearly half of the cases, fungus-host plant associations were found to be very frequent, that is, occurring every year and at all locations where the plant was inspected. A list of pathogen-host associations in Siberia deserving further investigation is provided, either because the pathogen is not yet recorded in Europe or because the pathogen-host association has not yet been reported, and the damage is high or, finally, because the damage and infestation level is unusually high in known associations. Further studies should involve molecular characterization of these foliar pathogens and their host range testing.

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[Tomoshevich, M.] RAS, SB, Cent Siberian Bot Garden, Novosibirsk, Russia
[Kirichenko, N.] RAS, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Holmes, K.
Kenis, M.] CABI, Delemont, Switzerland

Доп.точки доступа:
Tomoshevich, M.; Kirichenko, Natalia I.; Кириченко, Наталья Ивановна; Holmes, K.; Kenis, M.; EU [212459, 245268]; Russian Federation [MK-7049.2010.4]; city Novosibirsk [35-10]

[Text] / E. N. Afanasova, N. D. Sorokin // Biol. Bull. - 2014. - Vol. 41, Is. 5. - P418-423, DOI 10.1134/S1062359014050021. - Cited References: 20. - This study was supported by the Presidium of the Siberian Branch, Russian Academy of Sciences, "Structural-Functional Successions and Resistance of Microbial Complexes of Terrestrial Ecosystems in the Cryolitozem of Siberia" and the Russian Foundation for Basic Research, project no. 11-05-00374-a. . - ISSN 1062-3590. - ISSN 1026-3470РУБ Biology

Аннотация: The occurrence of ophiostomatoid fungi, associates of xylophagous insects, was established to be an indicator of the state of coniferous plantations under different anthropogenic influences and adverse ecological conditions at the coenotic level. The sizes of necroses developed on a tree inoculated with blue-stain fungus isolates were recorded to be indicators of the state of the tree at the physiological level.

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[Afanasova, E. N.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Sorokin, N. D.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
ИЛ СО РАН

Доп.точки доступа:
Afanasova, E.N.; Sorokin, N.D.; Presidium of the Siberian Branch, Russian Academy of Sciences; Russian Foundation for Basic Research [11-05-00374-a]

/ D. L. Musolin [et al.] // Baltic For. - 2017. - Vol. 23, Is. 1. - P316-333 . - ISSN 1392-1355
Аннотация: Four ash species are native to Russia (Fraxinus excelsior, F. angustifolia, F. chinensis, F. mandshurica) while F. pennsylvanica was introduced from North America. Ash forests cover 666 300 ha (0.1% of total forest area of Russia) and constitute a volume of 77.91 mln m3. Ash is widely used in the greening of populated places, around fields and along inter-city roads. We review the current situation with two recent invaders – ash dieback fungus Hymenoscyphus fraxineus (Ascomycota) and emerald ash borer Agrilus planipennis (Coleoptera). Hymenoscyphus fraxineus was likely accidentally introduced from Asia to Western Europe, expanded its range eastward and by 2014 reached Moscow, whereas A. planipennis was accidentally introduced from Asia to Moscow Region, expanded its range in all directions but most noticeably southwards. By 2012, A. planipennis reached Smolensk Region bordering Belarus, and by 2013, Voronezh Region bordering Ukraine. At least between Belarus and Moscow city, the ranges of invaders overlap. Both species are a threat to the native as well as introduced ash in Europe. We list known records of two invaders in Russia (as of 2016) and for A. planipennis also review food plants, seasonal cycle, dispersal, parasitoids and susceptibility of different ash species. We analyze the synergetic effect of two invaders on ash in the area of overlapped ranges and potential losses of biological diversity associated with ash decline and conclude that the future of ash in Europe is precarious. The following directions of actions in Eurasia are proposed: (1) studies of resistance mechanisms to both agents in Asian ash species (first of all, F. chinensis and F. mandshurica) and hybrids between Asian and European or North-American ash species, (2) studies on selection of resistant ash forms and hybrids (to both agents), (3) controlled introduction of resistant Asian ash species, (4) slowing down of expansions of A. planipennis to Western Europe and H. fraxineus within Russia, (5) studies of natural control agents, (6) monitoring of invasions and sanitary condition of ash, and (7) studies on synergetic effect of H. fraxineus and A. planipennis on ash. © Lithuanian Research Centre for Agriculture and Forestry.

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Держатели документа:
Department of Forest Protection, Wood Science and Game Management, Saint Petersburg State Forest Technical University, Institutskiy per., 5, Saint Petersburg, Russian Federation
Department of Biogeography and Environmental Protection, St. Petersburg State University, Universitetskaya nab. 7-9, St. Petersburg, Russian Federation
Department of Selection, Reforestation and Chemical Thinning, Saint Petersburg Forestry Research Institute, Institutskiy av., 21, St. Petersburg, Russian Federation
Department of Forest Protection and Wood Science, Belarusian State Technological University, Sverdlova str., 13a, Minsk, Belarus
Department of Forest Zoology, V.N. Sukachev Institute of Forest, Federal Research Center «Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences», Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Musolin, D. L.; Selikhovkin, A. V.; Shabunin, D. A.; Zviagintsev, V. B.; Baranchikov, Y. N.

/ N. V. Pashenova [et al.] // Russ. J. Biol. Invasions. - 2018. - Vol. 9, Is. 1. - P63-74, DOI 10.1134/S2075111718010137 . - ISSN 2075-1117
Аннотация: The study is aimed at investigation of ophiostomatoid fungi, associated with the four-eyed fir bark beetle (Polygraphus proximus Blandford, Coleoptera, Curculionidae)—an invasive pest of Siberian fir Abies sibirica. In the Russian Far East, eight fungal species are associated with this bark beetle. All of these fungi (except Leptographium taigense and Grosmannia europhioides) were brought by P. proximus to its secondary range (Southern Siberia and Moscow oblast). In the secondary range, a complex of ophiostomatoid fungi connected with P. proximus consists mainly of the Far Eastern species adapted to new habitats. Phytopathogenic activity of the fungi associated with bark beetle was studied. G. aoshimae and Ophiostoma nikkoense demonstrated high phytopathogenic activity after inoculation into phloem of Siberian fir. The culture of G. aoshimae and O. subalpinum produced extensive necroses in stems of Siberian larch Larix sibirica. In general, G. aoshimae is the main fungal associate of P. proximus, considering the frequency and stability of its occurrence in samples, as well as its aggressiveness toward coniferous species of Southern Siberia. It demonstrated high aggressiveness toward Siberian fir and Siberian larch; Scots pine Pinus sylvestris is also susceptible to this fungus. Siberian spruce Picea obovata and Siberian pine Pinus sibirica are resistant. There is a high possibility of P. proximus mycobiota enrichment with a complex of fungi connected with fir sawyer beetle Monochamus urussovi Fisch., an aboriginal pest of fir in Siberia. © 2018, Pleiades Publishing, Ltd.

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Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation
Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, pr. Lavrent’eva 10, Novosibirsk, Russian Federation

Доп.точки доступа:
Pashenova, N. V.; Kononov, A. V.; Ustyantsev, K. V.; Blinov, A. G.; Pertsovaya, A. A.; Baranchikov, Y. N.

/ I. N. Pavlov [et al.] // Contemp. Probl. Ecol. - 2018. - Vol. 11, Is. 4. - P406-419, DOI 10.1134/S1995425518040054. - Cited References:27. - This study was supported by the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and the Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity, project no. 16-44-242145r_ofi_m. . - ISSN 1995-4255. - ISSN 1995-4263РУБ Ecology

Аннотация: The territory of the new mass outbreak of Dendrolimus sibiricius is northernmost Siberia. The present increase in the pest numbers started in 2011-2012, 14 years after the previous mass outbreak. As a result, the area of damage to dark coniferous forests exceeded 1.4 million ha. The reasons for the emergence of the pest population from a depressive state are insufficient moisture availability in May 2011, severe droughts in June-July 2012, and increased mean monthly temperature. A significant decrease in the vegetation index of SWVI occurred in 2011-2012. The hydrothermal regime of the spring-summer period in these years promoted the transition of most of the pest populations to development over 1-year generation. One exceptional feature of the current outbreak is low damage to D. sibiricus caterpillars by diseases and parasites. Favorable weather conditions and a low number of natural entomopathogens contribute to the rapid spread of the pest in northern and eastern directions. This creates a high risk of mass outbreak of D. sibiricus in dark coniferous forests, since the area of nearby dark coniferous stands suitable in structure, climatic, and forest-growing conditions for the pest dispersal is more than 2.7 million ha. Pure cultures of the entomopathogenic fungus Beauveria bassiana were isolated from dead caterpillars of D. sibiricus. Multistage screening made it possible to select a promising strain for the creation of a long-acting bioinsecticide for the preventive treatment of forests. The main selection criteria are high virulence, high entomopathogenic activity at low temperatures (7-10A degrees C), and the ability for solid-phase fermentation of plant waste.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660049, Russia.
Fed Forestry Agcy Russian Ctr Forest Hlth, Ctr Forest Hlth Krasnoyarsk Krai, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Pavlov, I. N.; Litovka, Y. A.; Golubev, D. V.; Astapenko, S. A.; Chromogin, P. V.; Russian Foundation for Basic Research; Government of Krasnoyarsk krai; Krasnoyarsk Regional Fund for Support of Scientific and Technical Activity [16-44-242145r_ofi_m]

/ G. G. Polyakova, V. A. Senashova // Mikol. Fitopatol. - 2017. - Vol. 51, Is. 3. - С. 168-177 . - ISSN 0026-3648
Аннотация: Biotrophic fungus Melampsorella caryophyllacearum (Pucciniastraceae, Pucciniomycetes, Basidiomycota) developing in tissues of a fir (Abies sibirica) causes broom rust. Physiological mechanisms of plant resistance and fungus pathogenicity are not clear. The purpose of this work was an assessment of a role of secondary compounds and carbohydrates in mechanisms of interaction of Siberian fir and fungus M. caryophyllacearum. The 20-year age trees of Siberian fir grow in a mountain taiga zone in suburban forests of Krasnoyarsk (Central Siberia). Two options (one-year axes and needles of the current year without signs of damage by the fungus, and infected ones) were compared. Samples were taken on 3 trees 3 times during vegetation season: on June 21 (a phenology stage of shoot growth and a formation of pathogen etion), on July 19 (a phenology stage of summer vegetation and the period of active sporulation) and on September 10 (a phenology stage of autumn coloration of leaves and dying off the infected needles). The lignin and resin content were determined by weight method (the lignin determined with thioglycolic acid, the resins - by dissolving in pentane), carbohydrates - by the method of copper reduction using glucose as a standard, PAs - by coloring of solution after adding n-butanol / HCl mixture and heating. Starch was determined by coloring with iodine. The analysis of ANOVA proved reliable influence of various factors (phenology stage, plant organ (needles, axis), presence/absence of fungus infestation) on the content of PAs, lignin, monosaccharides (p < 0.05). The content of resin depended on plant organ only (resin content was more in axes, than in needles; p < 0.05). The tendency to starch accumulation in the infected axes during vegetation appeared to be caused by breakage of carbohydrates outflow. Infecting by the fungus caused decrease in the content of monosaccharides (p<0.05) that probably was connected with active consumption of mobile carbohydrates by the biotroph. The accumulation of PAs was revealed in needles and axes induced by M. caryophyllacearum fungus. Unlike PAs, the lignin concentration differently changed in the infected plant tissues. The accumulation of lignin was noted in diseased needles. In the infected axes in July the lignin content was significantly lower in comparison with control (p < 0.05). The found effect appeared to be manifestation of successful inhibition of plant protection by fungus. We suggested a hypothesis of the delayed lignification according to which a fungus inhibits synthesis of lignin and increases the chances in overcoming of protective barriers of a host. Perhaps, the pathogen influences carbon distribution by reducing its part for synthesis of lignin and increasing thereby synthesis of carbohydrates which further actively uses. The obtained data is agreed with concept according to which with effector molecules, biotrophs manipulate the defense machinery of the host in order to delay defense responses to gain enough time to multiply and spread into neighboring cells. © 2017 Russian Academy of Sciences. All rights reserved.

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Держатели документа:
Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Polyakova, G. G.; Senashova, V. A.

/ O. Moodley [et al.] // Bull. Environ. Contam. Toxicol. - 2018, DOI 10.1007/s00128-018-2496-0 . - Article in press. - ISSN 0007-4861
Аннотация: Alternaria oxytropis is an endophytic fungus of locoweeds that synthesizes swainsonine toxin. In this work, we evaluated the effect of A. oxytropis on soybean seedlings and quantified swainsonine in different culture conditions. Soybean (Glycine max) seeds were co-cultured with A. oxytropis (at different concentrations of mycelial suspensions) in agar media and soil culture, and swainsonine was assayed using LC–MS/MS. The results showed evidence that A. oxytropis infected soybean seedlings produced detectable swainsonine in agar culture while the toxin was undetectable or below the detection limit (0.006% of swainsonine dry weight) in soil media even at higher concentrations of the fungus. These results suggest that swainsonine detection is highly dependent on culture conditions and that soybeans co-cultured with A. oxytropis in soil could potentially be used to limit toxin production. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.

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Engineering Research Centre of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, Jilin Province 130118, China
South African Department of Agriculture, Forestry and Fisheries (DAFF), Pretoria, 0001, South Africa
Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Moodley, O.; Sun, Y.; Sossah, F. L.; Kakishima, M.; Pavlov, I. N.; Li, Y.; Wang, Q.

/ D. Semizer-Cuming [et al.] // Nat. Ecol. Evol. - 2018, DOI 10.1038/s41559-018-0761-6 . - Article in Press. - ISSN 2397-334X
Аннотация: Ash forests in North America and Eurasia are rapidly being lost to two invasive alien species: the emerald ash borer and Chalara ash dieback fungus. We argue that better regulatory policy and science-based intervention can help slow losses, and recommend an international consortium to coordinate science-based intervention. © 2018, Springer Nature Limited.

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Department of Forest Genetics and Forest Tree Breeding, Georg-August University of Gottingen, Gottingen, Germany
Forest, Nature and Biomass, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
Laboratory of Population Genetics, Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russian Federation
Laboratory of Forest Genomics, Genome Research and Education Center, Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, United States
Sukachev Institute of Forest FRC KSC of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Department of Environmental Sciences, American University, Washington, DC, United States

Доп.точки доступа:
Semizer-Cuming, D.; Krutovsky, K. V.; Baranchikov, Y. N.; Kj?r, E. D.; Williams, C. G.

[Текст] : статья / Г. Г. Полякова, Н. В. Пашенова, В. А. Сенашова // Известия РАН. Серия Биологическая. - 2020. - № 1. - С. 44-50, DOI 10.31857/S0002332920010105 . - ISSN 0002-3329
   Перевод заглавия: Influence of Chronical Partial Defoliation of Larch by Casebeareron Stem Physiological Parameters

УДК	581.1:632.938

Аннотация: В очаге лиственничной чехликовой моли Coleophora sibiricella Falkovitsh в чистом лиственничнике исследован защитный ответ флоэмы ствола лиственницы сибирской Larix sibirica Ledeb. на поранение или инокуляцию ствола грибным индуктором. В качестве грибного инокулята использовали мицелий офиостомового гриба Ceratocystis laricicola Redfern & Minter, его экстракт и белковую фракцию, полученную из экстракта. Содержание лигнина, крахмала, конденсированных дубильных веществ (проантоцианидинов) во флоэме определено в начале опыта (0 сут), через 7 и 14 сут. С помощью анализа ANOVA показано, что параметры ответа флоэмы не зависели от формы грибного инокулята (р ≥ 0.918), но зависели от других факторов (р ≤ 0.005) – повреждения кроны молью, времени от начала опыта, наличия инокулята в ране
In the long-term explosion of mass reproduction of larch casebearer Coleophora sibiricella Falkovitsh in pure larch stand the stem phloem responses of larch trees (Larix sibirica Ledeb.) to wounding damage or inoculation of the trunk with the fungal inductor. Mycelium of the ophiostomoid fungus Ceratocystis laricicola Redfern & Minter, its extractive and protein fraction obtained from the extractive were used as a fungal inductor. The content of lignin, starch, condensed tannins (proanthocyanidins) in the phloem was determined at the beginning of the experiment (0 days), after 7 and 14 days. Using ANOVA analysis, it was shown that the response parameters of the phloem did not depend on the shape of the fungal inoculum (p ≥ 0.918), but depended on other factors (p ≤ 0.005) - damage to the crown by the moth, time from the start of the experiment, and the presence of the inoculum in the wound

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Держатели документа:
Институт леса им. В.Н. Сукачева СО РАН

Доп.точки доступа:
Полякова, Галина Геннадьевна; Polyakova Galina Gennad'yevna; Пашенова, Наталья Вениаминовна; Pashenova, Natal'ya Veniaminovna; Сенашова, Вера Александровна; Syenashova Vera Alexandrovna

/ G. G. Polyakova, N. V. Pashenova, V. A. Senashova // Biol. Bull. - 2020. - Vol. 47, Is. 1. - P49-55, DOI 10.1134/S1062359020010100. - Cited References:28. - This work was supported by the Russian Foundation for Basic Research, project no. 15-04-06575. . - ISSN 1062-3590. - ISSN 1608-3059РУБ Biology

Аннотация: In the long-term explosion of mass reproduction of the larch casebearer (Coleophora sibiricella Falkovitsh) in a pure larch stand, the stem phloem responses of larch trees (Larix sibirica Ledeb.) to wounding damage or inoculation of the trunk with the fungal inductor were studied. The mycelium of the ophiostomatoid fungus Ceratocystis laricicola Redfern & Minter and its extractive and the protein fraction obtained from the extractive were used as a fungal inductor. The content of lignin, starch, and condensed tannins (proanthocyanidins) in the phloem was determined at the beginning of the experiment (zero days), and after seven and 14 days. Using ANOVA analysis, it was shown that the response parameters of the phloem did not depend on the kind of the fungal inoculum (P = 0.918), but depended on other factors (P

WOS

Держатели документа:
Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Polyakova, G. G.; Pashenova, N. V.; Senashova, V. A.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [15-04-06575]

/ G. Polyakova, N. Pashenova, V. Senashova [et al.] // Environments. - 2020. - Vol. 7, Is. 4. - Ст. 28, DOI 10.3390/environments7040028. - Cited References:35. - This work was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences, projects 0356-2018-0742 and 0356-2017-0017, and by RFBR grant 15-04-06575, RFBR-Krasnoyarsk Regional Foundation N 18-44-240004, grant 18-44-242002. . - ISSN 2076-3298РУБ Environmental Sciences

Аннотация: Five permanent sample plots (SPs; 200-250 trees per plot) were established in middle-aged high-grade suburban pine stands near the industrial city of Krasnoyarsk, Siberia, Russia. Needle damage, inventory parameters of the stands, and the defense response of the stem phloem were evaluated annually for the years 2002-2019 and attributed to acute or chronic toxic exposures (creeping fire or industrial pollutants, respectively). The results form a basis for using trees as bioindicators. A newly elaborated stem lesion test was formed from a hypothesis on the upward sugar transport for the regeneration of an injured crown, based on Eschrich's model of bidirectional sugar transport in the phloem. The formation of a phloem lesion was induced by inoculation of the stem with a mycelial extract of the ophiostomatoid fungus Ceratocystis laricicola. The lesion length and its shift relative to the inoculation hole were measured. An increase in the length of needles at early stages of stand weakening by pollutants was found to correspond to the hormesis model (Selye's adaptation syndrome). A possibility of assessing the chronology of pollutant toxicity and the duration of the recovery period after creeping fire was shown.

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Держатели документа:
FRC KSC SB RAS, Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia.
Nonstate Educ Inst Higher Profess Educ Siberian I, Krasnoyarsk 660069, Russia.
FRC KSC SB RAS, Photobiol Lab, Inst Biophys SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Biophys Dept, Krasnoyarsk 660049, Russia.

Доп.точки доступа:
Polyakova, Galina; Pashenova, Natalia; Senashova, Vera; Podolyak, Natalia; Kudryasheva, Nadezhda; Russian Academy of SciencesRussian Academy of Sciences [0356-2018-0742, 0356-2017-0017]; RFBRRussian Foundation for Basic Research (RFBR) [15-04-06575]; RFBR-Krasnoyarsk Regional Foundation [18-44-240004, 18-44-242002]

/ I. N. Pavlov, R. Vasaitis, Y. A. Litovka [et al.] // Sci. Rep. - 2020. - Vol. 10, Is. 1. - Ст. 5597, DOI 10.1038/s41598-020-62566-y . - ISSN 2045-2322
Аннотация: During recent years, a new disease of Siberian fir (A. sibirica) emerged in Central Siberia, exhibiting symptoms of stem/branch deformation, cambium necrosis, and dieback of branches and twigs, the causal agent remaining unknown. The aim was to identify agent of the disease and to investigate its pathogenicity to A. sibirica and Norway spruce (Picea abies). Symptomatic tissues of fir were subjected to pure culture isolation of anticipated pathogen(s). Obtained isolates were subjected to molecular identification, phylogenetic analyses, and pathogenicity tests with A. sibirica saplings, and seeds and seedlings of A. sibirica and P. abies. The study demonstrated that, (i) most commonly isolated fungus from canker wounds of A. sibirica exhibited Acremonium-like anamorphs; (ii) phylogeny demonstrated that investigated fungi belong to genus Corinectria, but are genetically well separated from other worldwide known Corinectria spp.; (iii) one species of isolated fungi has the capacity to cause the disease and kill A. sibirica saplings and seedlings, but also seedlings of P. abies. Guidelines for future research were defined in order to generate needed information on species description, its origin and ecology, and estimation of potential risks upon the eventual invasion of the pathogen to new geographic areas, in particular of Europe. © 2020, The Author(s).

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest SB RAS, Laboratory of Reforestation, Mycology and Plant Pathology, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Department of Chemical Technology of Wood and Biotechnology, Krasnoyarsk, 660037, Russian Federation
Swedish University of Agricultural Sciences (SLU), Department of Forest Mycology and Plant Pathology, P.O. Box 7026, Uppsala, SE-75007, Sweden
Mendel University in Brno, Department of Forest Protection and Wildlife Management Zemedelska 3, Brno, 61300, Czech Republic

Доп.точки доступа:
Pavlov, I. N.; Vasaitis, R.; Litovka, Y. A.; Stenlid, J.; Jankovsky, L.; Timofeev, A. A.; Menkis, A.

/ J.-H. Park, I. N. Pavlov, M.-J. Kim [et al.] // Sustainability. - 2020. - Vol. 12, Is. 6. - Ст. 2535, DOI 10.3390/su12062535 . - ISSN 2071-1050
Аннотация: Wood-decay fungi (WDF) play a significant role in recycling nutrients, using enzymatic and mechanical processes to degrade wood. Designated as a biodiversity hot spot, Central Siberia is a geographically important region for understanding the spatial distribution and the evolutionary processes shaping biodiversity. There have been several studies of WDF diversity in Central Siberia, but identification of species was based on morphological characteristics, lacking detailed descriptions and molecular data. Thus, the aim of this study was to identify WDF in Central Siberia, regarding the degradation of host trees based on both morphological and molecular analyses. We collected 106 WDF samples from Krasnoyarsk and the Republic of Khakassia in 2014 and 2017, and identified a total of 52 fungal species from six main host tree genera. In order to assess the host preference of the WDF, we examined previous literature, and data from this study. We confirmed a division in host preference of WDF between gymnosperms and angiosperms. DNA-based identification and host preference assessment of the WDF provide preliminary data on WDF diversity and their role in nutrient cycles in the ecosystem of Central Siberia. To fully understand WDF diversity in Central Siberia, continuous long-term surveys, including DNA sequence data, are needed. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Scopus

Держатели документа:
School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul, 08826, South Korea
Laboratory of Reforestation, Mycology and Plant Pathology, V. N. Sukachev Institute of Forest, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of Chemical Technology ofWood and Biotechnology, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660049, Russian Federation
Wood Utilization Division, Forest Products Department, National Institute of Forest Science, Seoul, 02455, South Korea
Department of Biology and Chemistry, Changwon National University, Changwon, 51140, South Korea
Science Unit, Lingnan University, Tuen Mun, Hong Kong

Доп.точки доступа:
Park, J. -H.; Pavlov, I. N.; Kim, M. -J.; Park, M. S.; Oh, S. -Y.; Park, K. H.; Fong, J. J.; Lim, Y. W.

/ G. Polyakova, N. Pashenova, V. Senashova [et al.] // Environ. - MDPI. - 2020. - Vol. 7, Is. 4. - Ст. 28, DOI 10.3390/environments7040028 . - ISSN 2076-3298
Аннотация: Five permanent sample plots (SPs; 200-250 trees per plot) were established in middleaged high-grade suburban pine stands near the industrial city of Krasnoyarsk, Siberia, Russia. Needle damage, inventory parameters of the stands, and the defense response of the stem phloem were evaluated annually for the years 2002-2019 and attributed to acute or chronic toxic exposures (creeping fire or industrial pollutants, respectively). The results form a basis for using trees as bioindicators. A newly elaborated stem lesion test was formed from a hypothesis on the upward sugar transport for the regeneration of an injured crown, based on Eschrich‘s model of bidirectional sugar transport in the phloem. The formation of a phloem lesion was induced by inoculation of the stem with a mycelial extract of the ophiostomatoid fungus Ceratocystis laricicola. The lesion length and its shift relative to the inoculation hole were measured. An increase in the length of needles at early stages of stand weakening by pollutants was found to correspond to the hormesis model (Selye‘s adaptation syndrome). A possibility of assessing the chronology of pollutant toxicity and the duration of the recovery period after creeping fire was shown. © 2020 by the authors.

Scopus

Держатели документа:
Sukachev Institute of Forest SB RAS, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Non-State Educational Institution of Higher Professional Education Siberian Institute of Business, Management and Psychology, Krasnoyarsk, 660069, Russian Federation
Photobiology Lab, Institute of Biophysics SB RAS, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Biophysics Department, Siberian Federal University, Krasnoyarsk, 660049, Russian Federation

Доп.точки доступа:
Polyakova, G.; Pashenova, N.; Senashova, V.; Podolyak, N.; Kudryasheva, N.