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Your search keyword '"Zlata Ogneva"' showing total 2 results
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2 results on '"Zlata Ogneva"'

1. Biotesting of Soil Contamination of Agricultural Land Prokhorovsky District of the Belgorod Region

Author

Elena Kuzubova, Natalya Grigorenko, Galina Shaidorova, Zlata Ogneva, and Marina Potapova

Subjects
bioindication, agricultural land, Lepidium sativum, Daphnia magna Straus, water reservoir, rural household, Engineering machinery, tools, and implements, TA213-215
Abstract

Belgorod Region is one of the main agro-industrial regions of Russia. The volume of production in the livestock sector in 2022 amounted to 203 billion rubles. Most often, livestock farms are located near agricultural land with plant crops, which increases the risk of contamination of the latter with various toxicants. The purpose of this work was to study and assess the contamination with heavy metal ions and toxic chemicals of the soils of agricultural lands and nearby reservoirs in the Prokhorovsky district of the Belgorod region. Watercress (Lepidium sativum) and crustaceans (Daphnia magna Straus) are bioindicators.

Published
2023
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2. Antifungal Activity of Gram-Negative Pigment-Forming Bacteria Against Aspergillus Unguis

Author

Nikita Lyakhovchenko, Viktoria Efimova, Alexander Seleznev, Zlata Ogneva, and Inna Solyanikova

Subjects
Environmental Engineering, Industrial and Manufacturing Engineering
Abstract

The paper presents a study of the antifungal activity of the pigment-forming strains Janthinobacterium lividum VKM B-3515, Pseudomonas chlororaphis VKM B-3546D and their mixture against the test culture Aspergillus unguis VKM F-1754. The growth rate of the colony and the average growth of A. unguis VKM F-1754 in the presence of J. lividum VKM B-3515 were 46.3% lower than the control variant. The growth rate of fungi in the presence of a mixture of two bacteria was 32% lower than in the control, and in the variant with a pure culture of Pseudomonas, it was 21%. The average increase in the diameter of the colonies of A. unguis VKM F-1754 cultivated with (P. chlororaphis VKM B-3546D-J. lividum VKM B-3515) was 33% lower than the control variant with Pseudomonas. While the mixture (P. chlororaphis VKM B-3546D-J. lividum VKM B-3515) showed less activity compared to the pure culture of J. lividum VKM B-3515. Thus, the use of two strains together may not be appropriate.

Published
2023
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