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Effect of bacterial population density on germination wheat seeds and dynamics of simple artificial ecosystems [Text] / L. A. Somova [et al.] ; ed. a, AB Sarang // SPACE LIFE SCIENCES: CLOSED ECOLOGICAL SYSTEMS: EARTH AND SPACE APPLICATIONS. Ser. ADVANCES IN SPACE RESEARCH : ELSEVIER SCIENCE BV, 2001. - Vol. 27: F4 4 Symposium of COSPAR Scientific Commission F held at the 33rd COSPAR Scientific Assembly (JUL, 2000, WARSAW, POLAND), Is. 9. - P. 1611-1615, DOI 10.1016/S0273-1177(01)00257-5. - Cited References: 6 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: Effect of the size of rhizospheric bacterial populations on germination of seeds and development of simple terrestrial "wheat plants - rhizospheric microorganisms - artificial soil" and "wheat plants artificial soil" systems has been studied. Experiments demonstrated that within specify ranges in the inoculate, the rhizospheric bacteria are capable of increasing the yield of germinated seeds and stimulate the growth of plantlets. Germination of seeds inoculated with bacteria was either stimulated, or inhibited or remained at control levels depending on the amount of bacteria. Plant biomass growth and total photoassimilation has been found to depend on the amount of bacteria on the plant roots: the higher the amount of bacteria on plant roots, the smaller is the biomass of plants but the total photoassimilation is, higher. Thus, depending on the amount of bacteria on the roots of plants the system either increases the biomass of plants or increases the total photoassimilation, i.e. "pumps" carbon through itself involving bacteria. (C) 2001 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Somova, L.A.; Pechurkin, N.S.; Sarangova, A.B.; Pisman, T.I.; Sarang, a, AB \ed.\

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Effect of bacterial population density on germination wheat seeds and dynamics of simple artificial ecosystems / L.A Somova [et al.] // Advances in Space Research. - 2001. - Vol. 27, Is. 9. - P1611-1615, DOI 10.1016/S0273-1177(01)00257-5 . - ISSN 0273-1177
Кл.слова (ненормированные):
Bacteria -- Biomass -- Ecosystems -- Plants (botany) -- Seed -- Artificial soil -- Germination -- Photoassimilation -- Space research -- artificial ecosystem -- article -- comparative study -- ecosystem -- germination -- growth, development and aging -- isolation and purification -- microbiology -- physiology -- plant root -- plant seed -- Pseudomonas fluorescens -- Pseudomonas putida -- wheat -- Ecosystem -- Germination -- Plant Roots -- Pseudomonas fluorescens -- Pseudomonas putida -- Seeds -- Triticum
Аннотация: Effect of the size of rhizospheric bacterial populations on germination of seeds and development of simple terrestrial "wheat plants - rhizospheric microorganisms - artificial soil" and "wheat plants - artificial soil" systems has been studied. Experiments demonstrated that within specify ranges in the inoculate, the rhizospheric bacteria are capable of increasing the yield of germinated seeds and stimulate the growth of plantlets. Germination of seeds inoculated with bacteria was either stimulated, or inhibited or remained at control levels depending on the amount of bacteria. Plant biomass growth and total photoassimilation has been found to depend on the amount of bacteria on the plant roots: the higher the amount of bacteria on plant roots, the smaller is the biomass of plants but the total photoassimilation is, higher. Thus, depending on the amount of bacteria on the roots of plants the system either increases the biomass of plants or increases the total photoassimilation, i.e. "pumps" carbon through itself involving bacteria. В© 2001 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Inst. of Biophysics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Somova, L.A; Pechurkin, N.S.; Sarangova, A.B.; Pisman, T.I.

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Fungistatic Activity of Engineered Nanoparticles / A. A. Asanova [et al.] // Nanotechnologies Russ. - 2018. - Vol. 13, Is. 5-6. - P277-280, DOI 10.1134/S1995078018030023 . - ISSN 1995-0780
Кл.слова (ненормированные):
Cultivation -- Fungi -- Silver compounds -- Silver nanoparticles -- Titanium dioxide -- Bipolaris sorokiniana -- Engineered nanoparticles -- High resistance -- Mycelium growth -- Nanoparticle concentrations -- Phytopathogenic fungi -- Pleurotus ostreatus -- SiO2 Nanoparticles -- Silica nanoparticles
Аннотация: The influence of various concentrations of Ag, TiO2, and SiO2 nanoparticles on conidia germination of the phytopathogenic fungus Bipolaris sorokiniana and mycelium growth of the xylotrophic fungi Pleurotus ostreatus and Neonothopanus nambi was analyzed. It is established that a decrease in conidia germination of phytopathogenic fungus and mycelium growth of the xylotrophic fungi occurs at relatively high silver nanoparticle concentrations. The appropriate ЕС50 values for Bipolaris sorokiniana, Pleurotus ostreatus, and Neonothopanus nambi are found to be 30, 14, and 31 mg/dm3, respectively. No effect of various concentrations of TiO2 and SiO2 nanoparticles on the studied cultures of fungi is highlighted. Thus, the negative impact of nanosilver on the growth of fungi at a high concentration which is untypical for objects of the environment and a lack of this influence of titanium dioxide and silica nanoparticles testifies to the high resistance of mycelial forms of organisms to engineered nanoparticles. © 2018, Pleiades Publishing, Ltd.

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Держатели документа:
Krasnoyarsk State Agrarian University, Krasnoyarsk, 660049, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Asanova, A. A.; Polonskiy, V. I.; Manukovsky, N. S.; Khizhnyak, S. V.

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Specific characteristics of Rhodiola rosea growth and development under the photoculture conditions [Text] / N. P. Kovaleva, A. A. Tikhomirov, V. A. Dolgushev // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 4. - P. 527-531, DOI 10.1023/A:1024781025696. - Cited References: 19 . - ISSN 1021-4437

РУБ Plant Sciences

Кл.слова (ненормированные):
Rhodiola rosea -- plant growth and development -- photoculture -- salidroside
Аннотация: Growth and development of Rhodiola rosea L. plants (the family Crassulaceae) were compared in their natural habitat, field stands, and in photoculture. By the indices of growth and development, plants grown for 135-137 days under the intensive photoculture were shown to exceed the 3-year-old plants developed in the natural habitats and 1-1.5-year-old plants grown in the field stands. Under the photoculture, 35% of all the plants under study started flowering at the day 75-77 after seed germination. The content of salidroside in the rhizomes of the 135-137-day-old plants was 0.4-0.6% per dry weight. Following photoculturing for 245 days, rhizome weight increased 4.5-fold as compared to the 135-137-day-old plants, and the salidroside concentration reached 1.2%, the level corresponding to the maximum content of this glycoside in the plants growing in their natural habitat and exceeding by 1.5-3 times the levels observed in the plants grown in the field stands. Under the photoculture conditions, plants of R. rosea were shown to grow without the dormancy period. Several factors apparently raised the salidroside concentration in the 245-day-old plants under the photoculture conditions, including enhanced growth, absence of the dormancy period and the period of lowered temperatures; as a whole, these factors promoted the detoxification, storage, and/or transport of the primary metabolic products.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kovaleva, N.P.; Tikhomirov, A.A.; Dolgushev, V.A.

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Experimental study of postwintering germination of akinetes and dormant cells of cyanoprocaryotes from bottom sediments of blooming and nonblooming ponds. / M. I. Gladyshev [et al.] // Doklady Biological Sciences. - 2002. - Vol. 383, Is. 1-6. - P131-132 . - ISSN 0012-4966
Кл.слова (ненормированные):
fresh water -- article -- Cyanobacterium -- cytology -- growth, development and aging -- microbiology -- physiology -- season -- Cyanobacteria -- Fresh Water -- Seasons -- Water Microbiology

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia. : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Kravchuk, E.S.; Kolmakov, V.I.; Ivanova, E.A.; Trusova, M.Y.; Sushchik, N.N.; Gribovskaya, I.V.

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Agent-based modeling of the complex life cycle of a cyanobacterium (Anabaena) in a shallow reservoir / F. L. Hellweger [et al.] // Limnology and Oceanography. - 2008. - Vol. 53, Is. 4. - P1227-1241 . - ISSN 0024-3590
Кл.слова (ненормированные):
algal bloom -- annual variation -- cyanobacterium -- ecological modeling -- Eulerian analysis -- experimental study -- Lagrangian analysis -- life cycle -- nutrient availability -- phytoplankton -- population dynamics -- reservoir -- shallow water -- survival -- water column -- Bugach Reservoir -- Eurasia -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Anabaena -- Anabaena flos-aquae
Аннотация: The cyanobacterium Anabaena flos-aquae and many other phytoplankton species have a complex life cycle that includes a resting stage (akinete). We present a new agent-based (also known as individual-based) model of Anabaena that includes the formation and behavior of akinetes. The model is part of a coupled Eulerian-Lagrangian model and can reproduce the main features of the observed seasonal and interannual population dynamics in Bugach Reservoir (Siberia), including an unexpectedly large bloom in a year with low nutrient concentrations. Model analysis shows that the internal loading of phosphorus (P) due to germination from the sediment bed is ?10% of the total input. However, most of the long-term nutrient uptake for Anabaena occurs in the sediment bed, which suggests that the sediment bed is not just a convenient overwintering location but may also be the primary source of nutrients. An in silico tracing experiment showed that most water column cells (?90%) originated from cells located in the sediment bed during the preceding winter. An in silico gene knockout experiment (akinete formation is prohibited) showed that the formation of resting stages is of critical importance to the survival of the population on an annual basis. A nutrient-reduction management scenario indicates that Anabaena densities increase because they are less sensitive to water column nutrient levels (because of the sediment bed source) than other species. В© 2008, by the American Society of Limnology and Oceanography, Inc.

Scopus
Держатели документа:
Civil and Environmental Engineering Department, Northeastern University, Boston, MA 02115, United States
Center for Urban Environmental Studies, Northeastern University, Boston, MA 02115, United States
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Hellweger, F.L.; Kravchuk, E.S.; Novotny, V.; Gladyshev, M.I.

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The influence of microbial associations on germination of wheat seeds and growth of seedlings under impact of zinc salts / L. A. Somova, N. S. Pechurkin // Advances in Space Research. - 2009. - Vol. 43, Is. 8. - P1224-1228, DOI 10.1016/j.asr.2008.12.008 . - ISSN 0273-1177
Кл.слова (ненормированные):
Heavy metals -- Life support system -- Microbial associations -- Microorganisms -- Wheat seeds -- Concentration (process) -- Heavy metals -- Metals -- Microorganisms -- Recycling -- Salts -- Seed -- Zinc -- Adverse effects -- Biological recycling -- Growth and development -- Heavy metal salts -- Higher plants -- Investigate effects -- Life support system -- Long-term missions -- Maximum permissible concentrations -- Microbial associations -- Pathogenic organisms -- Plantlets -- Recycling systems -- Root systems -- Wheat seeds -- Zinc salts -- Grain (agricultural product)
Аннотация: The life support systems (LSS) for long-term missions are to use cycling-recycling systems, including biological recycling. Higher plants are the traditional regenerator of air and producer of food. They should be used in many successive generations of their reproduction in LSS. Studies of influence of microbial associations on germination of wheat seeds and on growth of seedlings under impact of heavy metals are necessary because of migration of heavy metals in LSS. Microbial associations are able to stimulate growth of plants, to protect them from pathogenic organisms and from toxicity of heavy metal salts. The goal of this work was to investigate effect of microbial associations on the germination of wheat seeds and on the growth of seedlings under impact of different concentrations of ZnSO4. The results of investigations showed that:(1)Zinc salt had an adverse effect on germination of wheat seeds, beginning with concentrations of 8 MPC (Maximum Permissible Concentration) and higher.(2)Microbial associations (concentrations -104 to 107 cells/ml) were able to decrease (partly or completely) the adverse effect of ZnSO4 on germination of wheat seeds.(3)Concentrations (104-107 cells/ml) of microbial associations were able to decrease partly the adverse effect of zinc salts (intervals: from 1 to 32 MPS{cyrillic}) on the growth and development of wheat plantlets during heterotrophic phase.(4)The root system of plants was more sensitive to the adverse effect of ZnSO4 than shoots of plants. В© 2008 COSPAR.

Scopus
Держатели документа:
Institute of Biophysics SB, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Somova, L.A.; Pechurkin, N.S.

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Specific Characteristics of Rhodiola rosea Growth and Development under the Photoculture Conditions / N. P. Kovaleva, A. A. Tikhomirov, V. A. Dolgushev // Russian Journal of Plant Physiology. - 2003. - Vol. 50, Is. 4. - P527-531, DOI 10.1023/A:1024781025696 . - ISSN 1021-4437
Кл.слова (ненормированные):
Photoculture -- Plant growth and development -- Rhodiola rosea -- Salidroside -- Crassulaceae -- Rhodiola -- Rhodiola rosea
Аннотация: Growth and development of Rhodiola rosea L. plants (the family Crassulaceae) were compared in their natural habitat, field stands, and in photoculture. By the indices of growth and development, plants grown for 135-137 days under the intensive photoculture were shown to exceed the 3-year-old plants developed in the natural habitats and 1-1.5-year-old plants grown in the field stands. Under the photoculture, 35% of all the plants under study started flowering at the day 75-77 after seed germination. The content of salidroside in the rhizomes of the 135-137-day-old plants was 0.4-0.6% per dry weight. Following photoculturing for 245 days, rhizome weight increased 4. 5-fold as compared to the 135-137-day-old plants, and the salidroside concentration reached 1.2%, the level corresponding to the maximum content of this glycoside in the plants growing in their natural habitat and exceeding by 1.5-3 times the levels observed in the plants grown in the field stands. Under the photoculture conditions, plants of R. rosea were shown to grow without the dormancy period. Several factors apparently raised the salidroside concentration in the 245-day-old plants under the photoculture conditions, including enhanced growth, absence of the dormancy period and the period of lowered temperatures; as a whole, these factors promoted the detoxification, storage, and/or transport of the primary metabolic products.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kovaleva, N.P.; Tikhomirov, A.A.; Dolgushev, V.A.

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