New bacterial strains Рseudomonas laurentiana as promising agents for agrobiotechnology
Abstract
Bacterial strains ANT 17 and ANT 56 were isolated from activated sludge, antagonistic to plant pathogenic fungi Bipolaris sorokiniana. Physiological, biochemical, and culture morphological properties, analysis of the 16S rRNA gene sequence and composition of fatty acids of cell walls of strains AНT 17 and AНT 56 supported its classification within the species Pseudomonas laurentiana. It was shown that strains P. laurentiana AНT 17 and P. laurentiana AНT 56 possess a set of properties characteristic of PGP microorganisms: they exhibit antifungal activity against phytopathogenic micromycetes, are capable of decomposing phosphates and synthesizing phytohormonal substances. Inoculation of cucumber, tomato and cabbage seeds had a beneficial effect on their germination. Pre-sowing treatment of wheat seeds under the conditions of a natural infectious background with an inoculum of isolated bacterial strains contributed to a decrease in the spread of fungi that cause root rot. The possibility of using strains P. laurentiana and P. laurentiana AНT 56 in biotechnology in order to increase the productivity of agroecosystems. The ability to stimulate the growth and development of plants for strains of the P. laurentiana species was shown for the first time.
About the Authors
G. F. Rafikova
Ufa Institute of Biology, Ufa Federal Research Center, Russian Academy of Sciences
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
E. V. Kuzina
Ufa Institute of Biology, Ufa Federal Research Center, Russian Academy of Sciences
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
T. Yu. Korshunova
Ufa Institute of Biology, Ufa Federal Research Center, Russian Academy of Sciences
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
O. N. Loginov
Ufa Institute of Biology, Ufa Federal Research Center, Russian Academy of Sciences
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
Russian Federation
st. Prospect Oktyabrya 69, lit. E, Ufa, 450054
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Review
For citations:
Rafikova G.F., Kuzina E.V., Korshunova T.Yu., Loginov O.N. New bacterial strains Рseudomonas laurentiana as promising agents for agrobiotechnology. Vestnik Moskovskogo universiteta. Seriya 16. Biologiya. 2020;75(4):244-250. (In Russ.)
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