Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)


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Russian
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Article type: 
Article
UDC: 
579.64

Obtaining a fluorescently labeled endophytic strain of bacteria Herbaspirillum lusitanum P6-12 for their detection in vivo and in vitro

Autors: 
Bagavova Arapat Rustamovna, Saratov State University
Velichko Natal’ya Sergeevna, Saratov State University
Pylaev Timofey E., Institute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences
Fedonenko Yulia P., Institute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences
Abstract: 

The Herbaspirillum lusitanum P6-12 strain containing the vector plasmid pJN105TurboGFP, which encodes the synthesis of the green fluorescent protein GFP, and which has resistance to the antibiotic gentamicin, was obtained by electroporation. The constructed strain of H. lusitanum P6-12 in cultural, morphological and biochemical properties did not differ from the original typical natural strain of H. lusitanum P6-12. On solid growth media, the recombinant strain formed yellow-green colonies, fluorescent under UV irradiation. Upon inoculation with the resulting culture of plant objects, a green glow of the marked H. lusitanum P6-12 cells, actively colonizing the internal tissues of the host plant, was observed. The created strain can be used as a model strain for studying the patterns and characteristics of the behaviour of organisms in integrated systems, including for tracking bacterial cells during interaction with plants, assessing their survival, competitiveness, etc.

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Received: 
05.05.2021
Accepted: 
11.05.2021
Published: 
30.09.2021