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Your search keyword '"Andronov, E. E."' showing total 107 results
Start Over Author "Andronov, E. E." Publication Type Academic Journals
107 results on '"Andronov, E. E."'

33. Optimum ratio of complex biological product and fertilize (NPK) and the contribution of fungi and bacteria to the general decomposition and mulching of coniferous wood waste.

Author

Sviridova, O. V., Vorobyov, N. I., Andronov, E. E., Kurchak, O. N., Chizhevskaya, E. P., Pukhalskiy, Ya. V., Pishchik, V. N., Loskutov, S. I., and Sitnov, V. Yu.

Subjects
FOREST litter, WOOD waste, CONIFEROUS forests, MULCHING, FRACTAL analysis, SOIL fertility, BIOFERTILIZERS
Abstract

The use of a complex biological product (CBP) based on native microbiological consortiums of coniferous forest litter accelerated the composting process of coniferous wood waste. The contribution of micromycetes and bacteria to the activation of coniferous wood waste composting processes using the different fertilizers rates was studied. A fractal analysis has confirmed the formation of a micromycetes-bacterial system in the treatment with optimal rates of NPK and CBP. In this case the better decomposition of wood waste was observed. It was noted that micromycetes of the genus Penicillium dominated in the composts obtained with CBP addition. This compost was not phytotoxic. Thus, for coniferous sawdust decomposition and its further humification, it is necessary to use both micromycetes and bacteria. The use of organic material resulting from wood waste decomposition with CBP and optimal rates of NPK is an effective way to increase the content of organic substances in soils and their potential fertility. [ABSTRACT FROM AUTHOR]

Published
2022
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47. Symbiotic and genetic diversity of Rhizobium galegae isolates collected from the Galega orientalis gene center in the Caucasus

Author

Andronov, E. E., Terefework, Z., Roumiantseva, M. L., Dzyubenko, N. I., Onichtchouk, O. P., Kurchak, O.N., Dresler-Nurmi, A., Young, J. P. W., Simarov, B. V., and Lindstrom, K.

Subjects
Rhizobium -- Genetic aspects, Symbiosis -- Genetic aspects, Biological diversity -- Genetic aspects, Genomes -- Comparative analysis, Biological sciences
Abstract

Results indicate an evolutionary pressure on the symbiotic genome of Rhizobium galegae biovars as seen in the formation of distinct clusters by the R. galegae biovar officinalis and R. galegae biovar orientalis. Further, the Caucasian R. galegae biovar orientalis strains exhibit more diversity than R. galegae biovar officinalis strains.

Published
2003

48. Structural Insight Into the Role of Mutual Polymorphism and Conservatism in the Contact Zone of the NFR5-K1 Heterodimer With the Nod Factor.

Author

Igolkina, A. A., Porozov, Yu B., Chizhevskaya, E. P., and Andronov, E. E.

Subjects
RHIZOBIUM leguminosarum, HETERODIMERS, GENETIC polymorphisms
Abstract

Sandwich-like docking configurations of the heterodimeric complex of NFR5 and K1 Vicia sativa receptor-like kinases together with the putative ligand, Nod factor (NF) of Rhizobium leguminosarum bv. viciae, were modeled and two of the most probable configurations were assessed through the analysis of the mutual polymorphisms and conservatism. We carried out this analysis based on the hypothesis that in a contact zone of two docked components (proteins or ligands) the population polymorphism or conservatism is mutual, i.e., the variation in one component has a reflected variation in the other component. The population material of 30 wild-growing V. sativa (leaf pieces) was collected from a large field (uncultivated for the past 25-years) and pooled; form this pool, 100 randomly selected cloned fragments of NFR5 gene and 100 of K1 gene were sequenced by the Sanger method. Congruence between population trees of NFR5 and K1 haplotypes allowed us to select two respective haplotypes, build their 3D structures, and perform protein-protein docking. In a separate simulation, the protein-ligand docking between NFR5 and NF was carried out. We merged the results of the two docking experiments and extracted NFR5-NF-K1 complexes, in which NF was located within the cavity between two receptors. Molecular dynamics simulations indicated two out of six complexes as stable. Regions of mutual polymorphism in the contact zone of one complex overlapped with known NF structural variations produced by R. leguminosarum bv. viciae. A total of 74% of the contact zone of another complex contained mutually polymorphic and conservative areas. Common traits of the obtained two stable structures allowed us to hypothesize the functional role of three-domain structure of plant LysM-RLKs in their heteromers. [ABSTRACT FROM AUTHOR]

Published
2018
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50. Galega orientalis is more diverse than Galega officinalis in Caucasus-whole-genome AFLP analysis and phylogenetics of symbiosis-related genes.

Author

ÖSTERMAN, J., CHIZHEVSKAJA, E. P., ANDRONOV, E. E., FEWER, D. P., TEREFEWORK, Z., ROUMIANTSEVA, M. L., ONICHTCHOUK, O. P., DRESLER-NURMI, A., SIMAROV, B. V., DZYUBENKO, N. I., and LINDSTRÖM, K.

Subjects
CAUCASUS goat's rue, RHIZOBIACEAE, GENETIC polymorphisms, PLANT genes
Abstract

Legume plants can obtain combined nitrogen for their growth in an efficient way through symbiosis with specific bacteria. The symbiosis between Rhizobium galegae and its host plant Galega is an interesting case where the plant species G. orientalis and G. officinalis form effective, nitrogen-fixing, symbioses only with the appropriate rhizobial counterpart, R. galegae bv. orientalis and R. galegae bv. officinalis, respectively. The symbiotic properties of nitrogen-fixing rhizobia are well studied, but more information is needed on the properties of the host plants. The Caucasus region in Eurasia has been identified as the gene centre (centre of origin) of G. orientalis, although both G. orientalis and G. officinalis can be found in this region. In this study, the diversity of these two Galega species in Caucasus was investigated to test the hypothesis that in this region G. orientalis is more diverse than G. officinalis. The amplified fragment length polymorphism fingerprinting performed here showed that the populations of G. orientalis and R. galegae bv. orientalis are more diverse than those of G. officinalis and R. galegae bv. officinalis, respectively. These results support the centre of origin status of Caucasus for G. orientalis at a genetic level. Analysis of the symbiosis-related plant genes NORK and Nfr5 reveals remarkable diversity within the Nfr5 sequence, although no evidence of adaptive evolution could be found. [ABSTRACT FROM AUTHOR]

Published
2011
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