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  1. No Access

    Article

    Variations in Lipopolysaccharide Synthesis Affect Formation of Azospirillum baldaniorum Biofilms in planta at Elevated Copper Content

    At an elevated copper content, the viability of Azospirillum baldaniorum on wheat seedling roots and the number of cells colonizing the roots and forming biofilms depended on the physicochemical properties of the...

    L. P. Petrova, Yu. A. Filip’echeva, E. M. Telesheva, T. E. Pylaev… in Microbiology (2021)

  2. No Access

    Article

    Suppressed Biofilm Formation Efficiency and Decreased Biofilm Resistance to Oxidative Stress and Drying in an Azospirillum brasilense ahpC Mutant

    Azospirillum brasilense forms biofilms on various surfaces. It was previously shown that inactivation of the ahpC gene of alkyl hydroperoxide reductase in the SK586 mutant of A. brasilense Sp245 led to an increas...

    A. V. Shelud’ko, D. I. Mokeev, S. S. Evstigneeva, Yu. A. Filip’echeva… in Microbiology (2021)

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    Article

    Cell Ultrastructure in Azospirillum brasilense Biofilms

    Due to the primary localization of both epiphytic and endophytic plant growth-promoting rhizobacteria on the surface of the plant root system, biofilm formation is an adaptive trait for these microorganisms. U...

    A. V. Shelud’ko, D. I. Mokeev, S. S. Evstigneeva, Yu. A. Filip’echeva… in Microbiology (2020)

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    Article

    Characterization of Carbohydrate-Containing Components of Azospirillum brasilense Sp245 Biofilms

    The structure and functions of the biopolymers of the matrix of Azospirillum brasilense biofilms formed at the liquid–solid interface were studied. Calcofluor-binding polysaccharides (CBPS) and the complexes cont...

    A. V. Shelud’ko, Yu. A. Filip’echeva, E. M. Telesheva, A. M. Burov… in Microbiology (2018)

  5. No Access

    Article

    Changes in cell surface properties and biofilm formation efficiency in Azospirillum brasilense Sp245 mutants in the putative genes of lipid metabolism mmsB1 and fabG1

    The previously obtained insertion mutants of Azospirillum brasilense Sp245 in the genes mmsB1 and fabG1 (strains SK039 and Sp245.1610, respectively) were characterized by impaired flagellation and motility. The p...

    E. M. Shumilova, A. V. Shelud’ko, Yu. A. Filip’echeva, S. S. Evstigneeva… in Microbiology (2016)

  6. No Access

    Article

    Changes in biofilm formation in the nonflagellated flhB1 mutant of Azospirillum brasilense Sp245

    Bacteria Azospirillum brasilense Sp245 with mixed flagellation are able to form biofilms on various surfaces. A nonflagellated mutant of this strain with inactivated chromosomal copy of the flhB gene (flhB1) was ...

    A. V. Shelud’ko, Yu. A. Filip’echeva, E. M. Shumilova, B. N. Khlebtsov… in Microbiology (2015)

  7. No Access

    Article

    Serological relationships of azospirilla revealed by their motility patterns in the presence of antibodies to lipopolysaccharides

    Motility of the serologically different Azospirillum brasilense strains Sp245 (serogroup I) and Sp7 (serogroup II) was studied in the presence of antibodies to their lipopolysaccharides (LPS). A procedure was pro...

    A. V. Shelud’ko, G. L. Burygin, Yu. A. Filip’echeva, A. E. Belyakov… in Microbiology (2014)

  8. No Access

    Article

    Application of enzyme immunoassay for detection of the nitrogen-fixing bacteria of the genus Azospirillum in soil suspensions

    The enzyme immunoassay of soil suspensions was performed using antibodies against the lipopolysaccharides of Azospirillum brasilense model strains in order to assess the monthly population dynamics of the A. bras...

    A. I. Krasov, I. A. Popova, Yu. A. Filip’echeva, G. L. Burygin… in Microbiology (2009)