Cellulose-decomposing microorganisms of light chestnut soils of the Volgograd region

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

German, N.V.^1 ; Sevriukova, G.A.^1^2 ; Nefed'eva, E.E.^1^2 ; Polovinkina, Yu S^1 ; Gavrilov, D.A.^1

Volgograd State University, University Avenue 100, Volgograd

400062, Russia^1

Volgograd State Technical University, pr. V.I. Lenina 28, Volgograd

400005, Russia^2

关键词: Anthropogenic impacts;    Linen fabric;    Macro element;    Microbial communities;    Microbial numbers;    Soil conditions;    Soil extracts;    Soil microbiota;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/7/072031/pdf
DOI  :  10.1088/1755-1315/315/7/072031

来源: IOP

【 摘 要 】

The results of the dependence of the activity of cellulose-decomposing microorganisms on the anthropogenic impact on the soil are presented in the article. The qualitative reaction of microbial community to cellulose was assessed by the decomposition of linen fabric. The decomposition of the textile fibers and the increase of the weight of pieces of linen fabric by 30.64% in samples which were laid at the level of 10-20 cm in favourable soil conditions were demonstrated. It was determined that the highest microbial number was observed when a soil extract was cultivated on the Chapek medium, regardless of the soil conditions in which the microorganisms lived. The soils of the Volgograd region in the sphere of anthropogenic impact are contaminated and poor in micro-and macroelements, so they are not suitable for the life of the soil microbiota. That fact is evidenced by the lack of growth of microorganisms on an agarized soil starvation medium.