Open AccessStudy of the Effect of Azospirillum Lectins on the Formation of Hydrogen Peroxide in Wheat Seedling Roots
Author(s) -
С. А. Аленькина,
AUTHOR_ID,
К. А. Трутнева,
V. А. Velikov,
В. Е. Никитина,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2012
Publication title -
izvestiâ saratovskogo universiteta. novaâ seriâ. seriâ himiâ. biologiâ. èkologiâ
Language(s) - English
Resource type - Journals
eISSN - 2541-8971
pISSN - 1816-9775
DOI - 10.18500/1816-9775-2012-12-4-56-63
Subject(s) - azospirillum brasilense , seedling , catalase , hydrogen peroxide , superoxide dismutase , peroxidase , oxalate , chemistry , superoxide , microbial inoculant , biochemistry , botany , biology , enzyme , bacteria , organic chemistry , genetics
We show that the lectins isolated from the surface of the nitrogenfixing soil bacterium Azospirillum brasilense Sp7 and its mutant defective in lectin activity, A. brasilense Sp7.2.3., can regulate the production of hydrogen peroxide in wheat seedling roots, which is associated with the activation of superoxide dismutase, peroxidase and oxalate oxidase, as well as with the inhibition of catalase activity. We show that activation of oxalate oxidase is the most rapidly inducible pathway for the formation of hydrogen peroxide in wheat seedling roots under the effect of lectins. The obtained data indicate that the Azospirillum lectins can act as inducers of adaptation processes in wheat seedling roots.