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Accumulation of Am-241 by suspended matter, diatoms and aquatic weeds of the Yenisei River [Text] / T. A. Zotina, A. Y. Bolsunovsky, L. G. Bondareva // J. Environ. Radioact. - 2010. - Vol. 101, Is. 2. - P148-152, DOI 10.1016/j.jenvrad.2009.09.009. - Cited References: 26 . - 5. - ISSN 0265-931X

РУБ Environmental Sciences
Рубрики:
RADIONUCLIDES
   PLUTONIUM
   ELEMENTS
   ACTINIDES
   PLANTS
Кл.слова (ненормированные):
Activity concentration -- Americium -- Aquatic plant -- Asterionella formosa -- Concentration factor -- Diatoma vulgare -- Diatoms -- Elodea canadensis -- Seston
Аннотация: In this work we experimentally estimated the capacities of the key components of the Yenisei River (Russia): particulate suspended matter (seston), diatom microalgae, and submerged macrophytes for accumulating Am-241 from water. In our experiments large particles of seston (>8 mu m), comparable in size with diatoms, took up most of americium from water. The accumulation of americium by isolated diatom algae (Asterionella formosa and Diatoma vulgare) was lower than by total seston. The concentration factors (CFs) of Am-241 for seston of the Yenisei River in our experiments were (2.8-6.9).10(5); for diatoms -(1.5-4.2)-10(4). The Us for aquatic plant Elodea canadensis were within the same order of magnitude as those for diatoms. Activity concentration and CFs of Am-241 were nearly the same in experiments under dark and light conditions. This is indicative of an energy independent mechanism of americium uptake from the water by diatoms and submerged macrophytes. (C) 2009 Elsevier Ltd. All rights reserved.

Держатели документа:
[Zotina, T. A.
Bolsunovsky, A. Ya.
Bondareva, L. G.] Inst Biophys SB RAS, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zotina, T.A.; Bolsunovsky, A.Y.; Bondareva, L.G.

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Herbicidal activity of slow-release herbicide formulations in wheat stands infested by weeds / N. Zhila [et al.] // J. Environ. Sci. Health Part B-Pestic. Contam. Agric. Wastes. - 2017. - Vol. 52, Is. 10. - P729-735, DOI 10.1080/03601234.2017.1356668. - Cited References:23. - The research was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences (project no. AAAA-A17-117013050028-8). . - ISSN 0360-1234. - ISSN 1532-4109

РУБ Environmental Sciences + Public, Environmental & Occupational Health
Рубрики:
POLYHYDROXYALKANOATES
POLY-3-HYDROXYBUTYRATE
FILMS
Кл.слова (ненормированные):
Metribuzin -- tribenuron-methyl -- poly-3-hydroxybutyrate -- slow-release -- formulations -- herbicidal activity -- wheat -- weeds
Аннотация: The present study reports the herbicidal activity of metribuzin and tribenuron-methyl embedded in the degradable matrix of natural poly-3-hydroxybutyrate [P(3HB)/MET and P(3HB)/TBM]. The developed formulations were constructed as films and microgranules, which were tested against the weeds such as white sweet clover Melilotus albus and lamb's quarters Chenopodium album in the presence of soft spring wheat (Triticum aestivum, cv. Altaiskaya 70) as the subject crop for investigation. The activity was measured in laboratory scale experiments by determining the density and weight of the vegetative organs of weeds. The study was also aimed at testing the effect of the experimental formulation on the growth of wheat crop as dependent on the method of herbicide delivery. The experimental MET and TBM formulations showed pronounced herbicidal activity against the weed species used in the study. The effectiveness of the experimental formulations in inhibiting weed growth was comparable to and, sometimes, higher than that of the commercial formulations (positive control). The amount of the biomass of the wheat treated with the experimental herbicide formulations was significantly greater than that of the wheat treated with commercial formulations.

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Держатели документа:
Krasnoyarsk Sci Ctr SB RAS, Inst Biophys SB RAS, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Zhila, Natalia; Murueva, Anastasiya; Shershneva, Anna; Shishatskaya, Ekaterina; Volova, Tatiana; Russian Academy of Sciences [AAAA-A17-117013050028-8]

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РУБ Environmental Sciences + Public, Environmental & Occupational Health
Рубрики:
SYNTHASE-INHIBITING HERBICIDES
CHLOROPHYLL FLUORESCENCE
RELEASE
Кл.слова (ненормированные):
Metribuzin -- tribenuron-methyl -- degradable P(3HB) -- weed growth -- inhibition -- photosynthetic activity
Аннотация: The present study addresses the herbicidal activity and biological effects of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides used to control various weed species (Amaranthus retroflexus, Sinapis arvensis,andLeucanthemum maximum). The effects of the free herbicides and the herbicides embedded in granules of degradable polymer poly-3-hydroxybutyrate [P(3HB)] blended with birch wood flour were compared. Metribuzin, regardless of the form, caused 100% mortality of the three weeds by day 21. The herbicidal activity of tribenuron-methyl was lower than that of metribuzin, but the embedded TBM was superior to the free herbicide in the length and strength of its action on the weeds. Both metribuzin forms dramatically decreased the main parameters of fluorescence: maximum quantum yield of photosystem-II [Y(II)(max)], maximum quantum yield of non-photochemical quenching [Y(NPQ)(max)], and maximum rate of non-cyclic electron transport [ETRmax] and concentrations of chlorophyllaandb. The effect of the embedded TBM on the photosynthetic activity of the weeds was lower in the first two weeks of the growth of herbicide-treated plants but lasted longer than the effect of the free TBM and increased over time. Embedding of metribuzin in the matrix of degradable blend did not decrease its herbicidal activity.

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Держатели документа:
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Krasnoyarsk Sci Ctr SB RAS, Fed Res Ctr, Inst Biophys SB RAS, Krasnoyarsk, Russia.

Доп.точки доступа:
Volova, Tatiana; Baranovsky, Sergey; Petrovskaya, Olga; Shumilova, Anna; Sukovatyi, Alexey; Project "Agropreparations of the new generation: a strategy of construction and realization" [074-02-2018-328]; Government of the Russian Federation of April 9, 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning" [220]

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Efficacy of embedded metribuzin and tribenuron-methyl herbicides in field-grown vegetable crops infested by weeds / T. Volova, A. Demidenko, N. Kurachenko [et al.] // Environ. Sci. Pollut. Res. - 2020, DOI 10.1007/s11356-020-10359-1. - Cited References:35. - This work was supported by Project "Agropreparations of the new generation: a strategy of construction and realization" [Agreement No 074-02-2018-328] in accordance with Resolution No 220 of the Government of the Russian Federation of April 9, 2010, "On measures designed to attract leading scientists to the Russian institutions of higher learning". . - Article in press. - ISSN 0944-1344. - ISSN 1614-7499

РУБ Environmental Sciences
Рубрики:
DEFICIT IRRIGATION
   CONTROLLED-RELEASE
   YIELD
   TOMATO
   FORMULATIONS
Кл.слова (ненормированные):
Metribuzin -- Tribenuron-methyl -- Embedding -- Degradable P(3HB) -- Weed growth -- inhibition -- Quality of tomato fruits and beet roots
Аннотация: The purpose of the present study was to investigate the efficacy of the experimental formulations of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour in field-grown tomato and beet crops infested by weeds. There is a necessity to develop environmentally friendly and effective means to protect plants because of the shortcomings of the free herbicide forms such as the environmentally unsafe spray application of solutions and suspensions of the widespread metribuzin and tribenuron-methyl herbicides, removal from soil during watering events and rains, and transport to natural aquatic environments, where the herbicides accumulate in the trophic chains of biota. Free TBM is also rapidly inactivated in soil and metabolized to nontoxic products in plants. The efficacy of experimental formulations of metribuzin and tribenuron-methyl embedded in the matrix of degradable poly-3-hydroxybutyrate blended with wood flour was tested in field-grown tomato and beet crops infested with weeds. Application of metribuzin resulted in the highest productivity of tomatoes (2.3 kg/m(2)) and table beet (3.4 kg/m(2)), improved biometric parameters of tomato fruits and beet roots, and caused reduction in nitrate nitrogen concentrations in them. The mode of herbicide delivery did not affect sugar contents, but application of both metribuzin and tribenuron-methyl induced a 1.7-fold and 1.4-fold, respectively, increase in vitamin C concentrations in tomato fruits and beet roots relative to the vegetables grown on the subplots treated with free herbicides and the intact plants. Embedded herbicides can be used as preemergence herbicides in the field.

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Держатели документа:
Siberian Fed Univ, 79 Svobodnyi Av, Krasnoyarsk 660041, Russia.
SB RAS, Inst Biophys, Fed Res Ctr, Krasnoyarsk Sci Ctr, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Krasnoyarsk State Agr Univ, 90 Mir Av, Krasnoyarsk 660049, Russia.

Доп.точки доступа:
Volova, Tatyana; Demidenko, Alexey; Kurachenko, Natalia; Baranovsky, Sergey; Petrovskaya, Olga; Shumilova, Anna; Project "Agropreparations of the new generation: a strategy of construction and realization" of the Government of the Russian Federation [074-02-2018-328]

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Biological effects of the free and embedded metribuzin and tribenuron-methyl herbicides on various cultivated weed species / T. Volova, S. Baranovsky, O. Petrovskaya [et al.] // J. Environ. Sci. Health Part B Pestic. Food Contamin. Agric. Wastes. - 2020, DOI 10.1080/03601234.2020.1807835 . - Article in press. - ISSN 0360-1234
Кл.слова (ненормированные):
degradable P(3HB) -- Metribuzin -- photosynthetic activity -- tribenuron-methyl -- weed growth inhibition -- Electron transport properties -- Photosynthesis -- Plants (botany) -- Quantum chemistry -- Quantum yield -- Weed control -- Biological effects -- Cyclic electron transport -- Degradable polymers -- Herbicidal activity -- Main parameters -- Non-photochemical quenching -- Photosynthetic activity -- Poly-3-hydroxybutyrate -- Herbicides
Аннотация: The present study addresses the herbicidal activity and biological effects of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides used to control various weed species (Amaranthus retroflexus, Sinapis arvensis, and Leucanthemum maximum). The effects of the free herbicides and the herbicides embedded in granules of degradable polymer poly-3-hydroxybutyrate [P(3HB)] blended with birch wood flour were compared. Metribuzin, regardless of the form, caused 100% mortality of the three weeds by day 21. The herbicidal activity of tribenuron-methyl was lower than that of metribuzin, but the embedded TBM was superior to the free herbicide in the length and strength of its action on the weeds. Both metribuzin forms dramatically decreased the main parameters of fluorescence: maximum quantum yield of photosystem-II [Y(II)max], maximum quantum yield of non-photochemical quenching [Y(NPQ)max], and maximum rate of non-cyclic electron transport [ETRmax] and concentrations of chlorophyll a and b. The effect of the embedded TBM on the photosynthetic activity of the weeds was lower in the first two weeks of the growth of herbicide-treated plants but lasted longer than the effect of the free TBM and increased over time. Embedding of metribuzin in the matrix of degradable blend did not decrease its herbicidal activity. © 2020 Taylor & Francis Group, LLC.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS,”, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Volova, T.; Baranovsky, S.; Petrovskaya, O.; Shumilova, A.; Sukovatyi, A.

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Efficacy of Slow-Release Formulations of Metribuzin and Tribenuron Methyl Herbicides for Controlling Weeds of Various Species in Wheat and Barley Stands / T. Volova, A. Shumilova, N. Zhila [et al.] // ACS Omega. - 2020, DOI 10.1021/acsomega.0c02492 . - Article in press. - ISSN 2470-1343
Аннотация: The herbicidal activity of long-acting formulations of metribuzin and tribenuron methyl herbicides embedded in granules prepared from a mixture of degradable poly(3-hydroxybutyrate) and birch wood flour was studied in laboratory-grown weeds of various species and in wheat Triticum aestivum and barley Hordeum vulgare stands infested by weeds. The constructed formulations effectively suppressed all species of weeds studied. The biological effectiveness of herbicide formulations toward intact plants in wheat and barley stands infested with weeds was close to 100%, which was significantly higher than the effect of their free forms. The more effective suppression of weeds by embedded herbicides was beneficial for the growth of crops whose aboveground biomass was 8-13 to 20% greater than that of the crops in the treatments with free herbicides. Embedded metribuzin and tribenuron methyl exhibit sustained and pronounced herbicidal activity and are effective for pre-emergence soil application for crops infested with weeds of various species. © Copyright © 2020 American Chemical Society.

Scopus
Держатели документа:
Siberian Federal University, 79 Svobodnyi Av., Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics SB RAS, Federal Research Center "Krasnoyarsk Science Center SB RAS", 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, 686560, India

Доп.точки доступа:
Volova, T.; Shumilova, A.; Zhila, N.; Sukovatyi, A.; Shishatskaya, E.; Thomas, S.

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Efficacy of Slow-Release Formulations of Metribuzin and Tribenuron Methyl Herbicides for Controlling Weeds of Various Species in Wheat and Barley Stands / T. Volova, A. Shumilova, N. Zhila [et al.] // ACS Omega. - 2020. - Vol. 5, Is. 39. - P25135-25147, DOI 10.1021/acsomega.0c02492. - Cited References:34. - This study was financially supported by Project "Agro-preparations of the New Generation: A Strategy of Construction and Realization" (agreement no. 074-02-2018-328) in accordance with Resolution No. 220 of the Government of the Russian Federation of April 9, 2010 "on measures designed to attract leading scientists to the Russian institutions of higher learning" . - ISSN 2470-1343

РУБ Chemistry, Multidisciplinary
Рубрики:
SYNTHASE-INHIBITING HERBICIDES
Аннотация: The herbicidal activity of long-acting formulations of metribuzin and tribenuron methyl herbicides embedded in granules prepared from a mixture of degradable poly(3-hydroxybutyrate) and birch wood flour was studied in laboratory-grown weeds of various species and in wheat Triticum aestivum and barley Hordeum vulgare stands infested by weeds. The constructed formulations effectively suppressed all species of weeds studied. The biological effectiveness of herbicide formulations toward intact plants in wheat and barley stands infested with weeds was close to 100%, which was significantly higher than the effect of their free forms. The more effective suppression of weeds by embedded herbicides was beneficial for the growth of crops whose aboveground biomass was 8-13 to 20% greater than that of the crops in the treatments with free herbicides. Embedded metribuzin and tribenuron methyl exhibit sustained and pronounced herbicidal activity and are effective for pre-emergence soil application for crops infested with weeds of various species.

WOS
Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Krasnoyarsk Sci Ctr SB RAS, Inst Biophys SB RAS, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, Kottayam 686560, Kerala, India.

Доп.точки доступа:
Volova, Tatiana; Shumilova, Anna; Zhila, Natalia; Sukovatyi, Aleksey; Shishatskaya, Ekaterina; Thomas, Sabu; Project "Agro-preparations of the New Generation: A Strategy of Construction and Realization" [074-02-2018-328]; Government of the Russian Federation [220]

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Biodegradable polymers - Perspectives and applications in agriculture / E. G. Kiselev, N. O. Zhila, T. G. Volova // IOP Conference Series: Earth and Environmental Science : IOP Publishing Ltd, 2021. - Vol. 689: 2020 International Conference on Germany and Russia: Ecosystems Without Borders, EcoSystConfKlgtu 2020 (5 October 2020 through 10 October 2020, ) Conference code: 167944, Is. 1. - Ст. 012036, DOI 10.1088/1755-1315/689/1/012036
Кл.слова (ненормированные):
Biodegradable polymers -- Ecosystems -- Fungi -- Glycerol -- Monounsaturated fatty acids -- Oilseeds -- Pesticides -- Substrates -- Sunflower oil -- Fenoxaprop-p-ethyl -- Natural materials -- Pesticide formulations -- Poly-3-hydroxybutyrate -- Polyhydroxyalkanoates -- Productive process -- Strategy of constructions -- Various substrates -- Palm oil
Аннотация: The paper presents a brief overview of the results of the implementation of the project "Agropreparations of the new generation: a strategy of construction and realization". The first part contains the analysis of the growth of the wild-type strain Cupriavidus necator B-10646 (formerly eutrophus) and the synthesis of polyhydroxyalkanoates by this strain on various substrates: glycerol, palm oil, Siberian oil seed, sunflower seed oils, and oleic acid. On refined glycerin, a highly productive process is implemented when scaling up, allowing to obtain 128 ± 11 g / L PHA. Evaluation of oils has shown that palm oil is the best carbon substrate. The second part presents the results of the development of environmentally friendly slow-release pesticide formulations. They are a degradable matrix of poly-3-hydroxybutyrate mixed with natural materials (peat, clay, wood flour), into which a pesticide (metribuzin, tribenuron-methyl, fenoxaprop-P-ethyl, azoxystrobin, epoxiconazole, and tebuconazole) has been. The developed preparations showed high activity against pathogenic fungi and weeds and had a much weaker negative effect on the soil microflora. Studies of the degradation of the developed preparations and the release of pesticides into the soil confirm their effectiveness over a long period of time, up to 90 days. © Published under licence by IOP Publishing Ltd.

Scopus
Держатели документа:
School of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
Laboratory of Chemoautotrophic Biosynthesis, Institute of Biophysics, SB, RAS, Federal Research Center, Krasnoyarsk Science Center SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kiselev, E. G.; Zhila, N. O.; Volova, T. G.

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