Published date: Nov 25 2019

Journal Title: KnE Life Sciences

Issue title: International Scientific and Practical Conference “AgroSMART – Smart Solutions for Agriculture”

Pages: 868–876

DOI: 10.18502/kls.v4i14.5684

G A Belogolovagabel@igc.irk.ru

O N Gordeeva

M G Sokolova

V I Poletaeva

O B Vaishlya

M V Pastukhov

B A Baenguev

The study was aimed at the transformation of arsenic compounds in the rhizosphere, its accumulation in plants, P and Si translocation to plants under the influence of Bacillus megaterium var. phosphaticum, and Bacillus mucilaginosus with various forms of As compounds in the soil. The authors describe the maximum effect of Bacillus megaterium var. Phosphaticum strain on As migration, its mobilization and immobilization in the rhizosphere due to arsenic leaching from mineral and difficult-todestroy compounds and its accumulation in plants. The forms of arsenic compounds were isolated from the rhizosphere based on sequential extraction procedures. The features of the inter-element As-P interaction in plants were established. With the intense accumulation of As in the rhizosphere inoculated with rhizobacteria, the intake of phosphorus into plants was not observed, as contrary to Si. The study of As and biogenic elements behavior under the influence of rhizobacteria is of great importance in the development of ecobiotechnologies related to soil remediation and crop production.

[1] Vimal, S.R., Singh, J.S., Arora, N.K. et al. (2017). Soil-plant-microbe interactions in stressed agriculture management. A review. Pedosphere, vol. 27(2), pp. 177–192.

[2] Lugtenberg, B.J., Kamilova, F. (2009). Plant growth-promoting rhizobacteria. Annu. Rev. Microbiol, vol. 63, pp. 541–556.

[3] Barea, J.M. (2015). Future challenges and perspectives for applying microbial biotechnology in sustainable agriculture based on a better understanding of plant microbiome interactions. J. Soil Sci. Plant Nut., vol. 15(2), pp. 261–282.

[4] Khan, M.S., Zaidi, A., Wani, P.A. et al. (2009). Role of plant growth promoting rhizobacteria in the remediation of metal contaminated soils. Environ. Chem. Lett., vol. 7, pp. 1–19.

[5] Tabak, H.H., Lens, P., van Hullebusch, E.D. et al. (2005). Developments in Bioremediation of soils and sediments polluted with metals and radionuclides -- 1. Microbial processes and mechanisms affecting bioremediation of metal contamination and influencing metal toxicity and transport. Rev. Environ. Sci. BioTechnol., vol. 4, pp. 115–156.

[6] Belogolova, G.A., Sokolova, M.G., Gordeeva, O.N. et al. (2015). Speciation of arsenic and its accumulation by plants from rhizosphere soils under the influence of Azotobacter and Bacillus bacteria. J. Geochem. Explor., vol. 149, pp. 52–58.

[7] Tessier, A., Campbell, P.G.C., Bisson, M. (1979). Sequential extraction procedures for the speciation of particulate trace metals. Anal. Chem., vol. 51, pp. 844–51.

[8] Rebrov, V.G., Gromova, O.A. (2003). Vitamins and trace minerals. Moscow: Alev-V, p. 670.

[9] Fitz, W.J., Wenzel, W.W. (2002). Arsenic transformation in the soil-zhizosphere-plant system: fundamentals and potential application to phytoremediation. J. Biotechnol., vol. 99, pp. 259–278.

[10] Vaishlya, O.B., Amyago, D.M., Guseva, N.V. (2013). Role of Bacillus Mucilaginosus at Silicon Biogeochemical Cycle in a System Soil -- Plant. Mineral. Mag., vol. 77, p. 2383.

[11] Oremland, R.S., Chad, W.S., Wolfe-Simon, F. et al. (2009). Arsenic in the Evolution of Earth and Extraterrestrial Ecosystems. Geomicrobiology, vol. 26, pp. 522–536.