Biomics

Nitrogen is an absolutely necessary element for all living organisms. However, representatives of the plant and animal world can not draw nitrogen directly from the air atmosphere. This ability is possessed by microorganisms (nitrogen fixers), and the process of nitrogen binding of the atmosphere by these organisms and transferring it into a form readily available for assimilation by plants is called biological nitrogen fixation. The greatest contribution to the biological fixation of nitrogen is made by symbiosis of nitrogen-fixing bacteria (rhizobia) and leguminous plants. One of the methods of modern farming is the use of preparations for plant growing based on beneficial microorganisms. For a long time, agriculture has solved this problem through the use of mineral nitrogen fertilizers, which has greatly increased the productivity of the main agricultural crops. But their intensive use led to the problem of the ecologization of agricultural production, which in turn prompted the countries of the world to switch to organic agriculture (organic farming), which should be understood as the production through the maximum use of biological factors of increasing fertility that do not have a negative impact on nature. One of the methods of modern farming is the use of preparations for plant growing based on beneficial microorganisms. The use of biopreparations increases the productivity of plants, improves their quality by increasing the content of protein, starch, vitamins and other compounds, allows you to get earlier products, improve its safety. In addition, their use makes it possible to reduce the rate of mineral nitrogen fertilizers, which positively affects the level of nitrates and nitrites in products.

nitrogen, nodule bacteria, leguminous plants, fertilizers, symbiosis, agriculture, productivity, fertility

1. Abd-Alla M. H. et al. Synergistic interaction of Rhizobium leguminosarum viciae and arbuscular mycorrhizal fungi as a plant growth promoting biofertilizers for faba bean (Vicia faba L.) in alkaline soil // Microbiological research. 2014. V. 169. P. 49-58. doi.org/10.1016/j.micres.2013.07.007
2. Bhardwaj D. et al. Biofertilizers function as key player in sustainable agriculture by improving soil fertility, plant tolerance and crop productivity // Microbial Cell Factories. 2014. V. 13. P. 66. doi:1186/1475-2859-13-66
3. Cheng G. et al. Multiplicity of sulfate and molybdate transporters and their role in nitrogen fixation in Rhizobium leguminosarum viciae Rlv3841 // Molecular Plant-Microbe Interactions. 2016. V. 29. P. 143-152. doi:10.1094/MPMI-09-15-0215-R
4. Dávila D. Z., Ormeño-Orrillo E., Martínez-Romero E. Biodiversity of nitrogen-fixing nodule bacteria associated with Lima bean (Phaseolus lunatus) in its domestication centers //Araújo ASF, Lopes Â. CA, Gomes RLF, editors. Phaseolus lunatus: Diversity, Growth and Production. Nova Science Publishers. 2015. P. 91-102.
5. Kneip C. et al. Nitrogen fixation in eukaryotes–new models for symbiosis // BMC Evolutionary Biology. 2007. V. 7. P. 55. doi:10.1186/1471-2148-7-55
6. Knoth J. L. et al. Biological nitrogen fixation and biomass accumulation within poplar clones as a result of inoculations with diazotrophic endophyte consortia // New Phytologist. 2014. Т. 201. P. 599-609. doi: 10.1111/nph.12536
7. Krapp A. Plant nitrogen assimilation and its regulation: a complex puzzle with missing pieces // Current Opinion in Plant Biology. 2015. V. 25. P. 115-122. doi:1016/j.pbi.2015.05.010
8. Larmola T. et al. Methanotrophy induces nitrogen fixation during peatland development // Proc. Nat. Acad. Sci.USA. 2014. V. 111. P. 734-739. doi:10.1073/pnas.1314284111
9. Lechene C. P. et al. Quantitative imaging of nitrogen fixation by individual bacteria within animal cells // Science. 2007. V. 317. P. 1563-1566. doi: 10.1126/science.1145557
10. Nova-Franco B. et al. The micro-RNA172c-APETALA2-1 node as a key regulator of the common bean-Rhizobium etli nitrogen fixation symbiosis // Plant Physiology. 2015. V. 168. P. 273-291. doi: 10.1104/pp.114.255547
11. Oldroyd G. E. D., Dixon R. Biotechnological solutions to the nitrogen problem //Current Opinion in Biotechnology. 2014. V. 26. P. 19-24. doi:1016/j.copbio.2013.08.006
12. Remigi P. et al. Symbiosis within symbiosis: evolving nitrogen-fixing legume symbionts // Trends in microbiology. 2016. V. 24. P. 63-75. doi:1016/j.tim.2015.10.007
13. Rondon M. A. et al. Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions //Biology and fertility of soils. 2007. V. 43. №. 6. P. 699-708. doi: 10.1007/s00374-006-0152-z
14. Scott J. T., McCarthy M. J., Carole S. Nitrogen fixation may not balance the nitrogen pool in lakes over timescales relevant to eutrophication management // Limnology and Oceanography. 2010. V. 55. P. 1265-1270. doi:10.1093/aob/mct048
15. Sohm J. A., Webb E. A., Capone D. G. Emerging patterns of marine nitrogen fixation // Nature Reviews Microbiology. 2011. V. 9. P. 499-508. doi: 10.1038/nrmicro2594
16. Stucke N. et al. Synthetic Nitrogen Fixation with Mononuclear Molybdenum (0) Phosphine Complexes: Occupying the trans-Position of Coordinated N₂// Springer. 2017.P.1-40.
17. Suganuma N. Lotus Genes Involved in Nodule Function and Nitrogen Fixation //The Lotus japonicus Genome. Springer Berlin Heidelberg. 2014. P. 79-84. doi: 1007/978-3-662-44270-8_8
18. Terpolilli J. J. et al. Lipogenesis and redox balance in nitrogen-fixing pea bacteroids // Journal of Bacteriology. – 2016. V. 198. P. 2864-2875. doi:1128/JB.00451-16
19. Udvardi M., Poole P. S. Transport and metabolism in legume-rhizobia symbioses //Annu. rev. Plant Biology. 2013. V. 64. P. 781-805. doi:1146/annurev-arplant-050312-120235
20. Youssef M. M. A., Eissa M. F. M. Biofertilizers and their role in management of plant parasitic nematodes. A review // J. Biotechnol. Pharm. Res. 2014. V. 5. P. 1-6.