For citation:
Kondyurina N. K., Fedonenko Y. P., Sigida E. N., Konnova S. A. Effect of Azospirillum palustre B2 lipopolysaccharide on wheat seedlings (Triticum aestivum L.). Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2024, vol. 24, iss. 1, pp. 67-75. DOI: 10.18500/1816-9775-2024-24-1-67-75, EDN: DILUUQ
Effect of Azospirillum palustre B2 lipopolysaccharide on wheat seedlings (Triticum aestivum L.)
Lipopolysaccharide is the main structural component of the outer membrane of Gram-negative bacteria, which can also be a part of extracellular polymeric substances. Lipopolysaccharides of bacteria that stimulate the growth and development of plants belong to the group of molecules that form a microbe-associated molecular pattern (MAMP). These glycoconjugates of both symbiotic and phytopathogenic bacteria induce the activation of immune responses in plants. However, the level of plant response under the infl uence of symbiont lipopolysaccharides diff ers signifi cantly, also due to their structural features, which make it possible to bypass or weaken the reactions of innate autoimmunity. In this paper, we present the results of the analysis of the reactions of wheat seedlings Triticum aestivum L. after incubation with lipopolysaccharide of associative bacteria Azospirillum palustre B2(T). Incubation of wheat seedlings in the presence of A. palustre B2 lipopolysaccharide for three days led to the activation of plant growth processes, namely an increase in the length of shoots, roots, the area of the fi rst leaf, and a change in the content of pigments in the leaves.
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