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Suppression of fungal phytopathogens is one of the serious challenges agriculture and forestry since they cause significant biomass and yield losses. One of the alternative methods of suppression phytopathogens is the use of biosurfactants, which are amphiphilic substances produced by many microbes. Bacteria of Pseudomonas genus are known to produce biosurfactants of the rhamnolipid class. These surfactants can possess antimicrobial and fungicidal properties. In this work, we studied the effect of various concentr...

Chicken manure is a source of biogenic elements and therefore can be used as a nonconventional fertilizer after composting. However, chicken manure can contain different hazardous substances including antibiotic resistant bacteria and corresponding genes of antibiotic resistance that can be transmitted to human and livestock trough soils and plants even after composting. Besides chicken manure composts can contain heavy metals that not only harm soils and yields directly but also stimulate the process of antibioti...

Chicken manure is one of the most wide spread waste worldwide. One of its hazardous properties is contamination with live pathogens or pathogens- spores. Being introduced into soil for fertilization, fresh, cured or treated manure can cause soil contamination with those pathogens. Further, transmission of the pathogens through soil and plant tissues to human or animal food is possible. The objective of the present work was to reveal the level of pathogenic contamination of wheat grains cultivated on soil that was ...

In our study, we optimized two methods of enzyme activity estimations characterizing C and P cycles (?-1,4-glucosidase and acid phosphatase) for agricultural soil with 2.629% of total C and 0.062 % of total N sampled in Tatarstan (Russia). Concentration of the substrates (4-MUF-?-d-glucopyranoside, 4-MUF-phosphate) in the range from 20 to 900 ?mol g-1 soil was used, four levels of buffer pH (3, 6, 8, 11) were compared, and three different dilutions of soil suspension (1%, 2%, 10% w/v) were investigated. Besides, t...

In our study, we optimized two methods of enzyme activity estimations characterizing C and P cycles (?-1,4-glucosidase and acid phosphatase) for agricultural soil with 2.629% of total C and 0.062 % of total N sampled in Tatarstan (Russia). Concentration of the substrates (4-MUF-?-d-glucopyranoside, 4-MUF-phosphate) in the range from 20 to 900 ?mol g-1 soil was used, four levels of buffer pH (3, 6, 8, 11) were compared, and three different dilutions of soil suspension (1%, 2%, 10% w/v) were investigated. Besides, t...