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  1. No Access

    Article

    Dose-Dependent Effects of Azospirilla Lectin on the Growth of Wheat Seedlings Under Salt Stress

    The dose-dependent effect of the A. brasilense Sp7 lectin on the roots of 4-day-old wheat seedlings (Triticum aestivum L. cv. Saratovskaya 29) grown under simulated salt stress was studied. In the roots of wheat ...

    S. A. Alen’kina, M. A. Kupryashina in Applied Biochemistry and Microbiology (2024)

  2. No Access

    Article

    Stimulating Effect from Lectins of Associative Bacteria of the Genus Azospirillum on the Germination and Morphometric Characteristics of Spring Wheat Sprouts in Simulated Abiotic Stress

    For the first time, data were obtained on the effect of lectins of two strains of azospirillum—Azospirillum brasilense Sp7 (epiphyte) and Azospirillum brasilense Sp245 (endophyte)—on germination and growth charac...

    S. A. Alen’kina, V. E. Nikitina in Russian Journal of Plant Physiology (2021)

  3. No Access

    Article

    Effect of Azospirillum Lectins on the Ascorbate Peroxidase Activity and Ascorbic Acid Content in Wheat Seedling Roots Exposed to Abiotic Stresses

    We examined the effect of lectins from two Azospirillum strains (the epiphyte A.brasilense Sp7 and the endophyte A. brasilense Sp245) on the ascorbate peroxidase activity and ascorbic acid content in roots of eti...

    S. A. Alen’kina, V. E. Nikitina in Applied Biochemistry and Microbiology (2020)

  4. No Access

    Article

    Effect of azospirillum lectins on the activity of proteolytic enzymes and their inhibitors in wheat seedling roots

    The lectins of associative nitrogen-fixing strains Azospirillum brasilense Sp7 and Sp245 were shown to exert a multidirectional effect on the activity of acidic (pH 3.5), neutral (pH 6.8), and alkaline (pH 7.8) p...

    S. A. Alen’kina, V. E. Nikitina in Microbiology (2015)

  5. No Access

    Article

    Comparative assessment of inductive effects of Azospirillum lectins with different antigenic properties on the signal systems of wheat seedling roots

    The lectins of associative nitrogen-fixing bacteria Azospirillum brasilense Sp7 and its mutant A. brasilense Sp7.2.3 were shown to have different effects on the components of the wheat seedling root signal system...

    S. A. Alen’kina, L. P. Petrova, M. K. Sokolova, M. P. Chernyshova… in Microbiology (2014)

  6. No Access

    Article

    Change in the content of salicylic acid and activities of phenylalanine ammonia-lyase and catalase in wheat seedling roots under the influence of Azospirilium lectins

    The time course of changes in the endogenous content of salicylic acid, the ratio between the acid’s free and bound forms, and changes in the activities of phenylalanine ammonia-lyase and catalase in wheat see...

    S. A. Alen’kina, K. A. Trutneva, V. E. Nikitina in Biology Bulletin (2013)

  7. No Access

    Article

    Azospirillum lectin-induced changes in nitric oxide content in wheat seedling roots

    It is shown that lectins of nitrogen-fixing associative bacteria of the genus Azospirillum are able to activate nitric oxide production in wheat seedling roots through the NO signal system and thereby can be indu...

    S. A. Alen’kina, V. E. Nikitina in Russian Agricultural Sciences (2011)

  8. No Access

    Article

    Assessment of the effect of azospirilla lectins on c-AMP level in plant cells

    S. A. Alen’kina, L. Yu. Matora, V. E. Nikitina in Microbiology (2010)

  9. No Access

    Article

    Effect of lectins from Azospirillum brasilense to peroxidase and oxalate oxidase activity regulation in wheat roots

    Lectins were extracted from the surface of nitrogen-fixing soil bacteria Azospirillum brasilense Sp7 and from its mutant A. brasilense Sp7.2.3 defective in lectin activity. The ability of lectins to stimulate the...

    S. A. Alen’kina, V. E. Nikitina in Biology Bulletin (2010)

  10. No Access

    Article

    Stabilizing effect of Azospirillum lectins on β-glucosidase activity

    Lectins from the surface of Azospirillum brasilense Sp7 and Azospirillum brasilense Sp7.2.3 (a mutant with impaired lectin activity) were shown to induce a stabilizing effect on the activity of almond β-glucosida...

    S. A. Alen’kina, V. R. Zharkova, V. E. Nikitina in Applied Biochemistry and Microbiology (2007)

  11. No Access

    Article

    Effect of Azospirillum Lectins on the Activities of Wheat-root Hydrolytic Enzymes

    This work studied the effect of two cell-surface lectins isolated from the nitrogen-fixing soil bacterium Azospirillum brasilense Sp7 and from its mutant defective in hemagglutinating activity, A. brasilense Sp7....

    S. A. Alen’kina, O. A. Payusova, V. E. Nikitina in Plant and Soil (2006)

  12. No Access

    Article

    Extracellular Proteolytic Enzymes of Azospirillum brasilense Strain Sp7 and Regulation of Their Activity by a Homologous Lectin

    It was found that Azospirillum brasilense strain Sp7 is able to produce extracellular proteolytic enzymes. The enzymes were active within a broad range of pH values, with two peaks of activity being located in th...

    M. P. Chernyshova, S. A. Alen’kina, V. E. Nikitina… in Applied Biochemistry and Microbiology (2005)

  13. No Access

    Article

    A comparative study of the effect of the lectins of Azospirillum brasilense Sp7 and its mutant on the activity of some enzymes in plant cells

    S. A. Alen’kina, O. A. Payusova, V. E. Nikitina in Microbiology (2004)

  14. No Access

    Article

    Investigation of the Relationship between the Lectin Activity of Azospirilla and Their α-Glucosidase, β-Glucosidase, and β-Galactosidase

    The activities of α-glucosidase, β-glucosidase, and β-galactosidase were studied during the isolation and purification of lectins from Azospirillum brasilenseSp7 and Azospirillum lipoferum59b cells. These enzymat...

    S. A. Alen'kina, V. E. Nikitina, M. V. Borisova-Golovko in Microbiology (2001)

  15. No Access

    Article

    The Role of Cell-Surface Lectins in the Aggregation of Azospirilla

    The mutant strain Azospirillum brasilenseSp7.2.3 with impaired lectin activity exhibited poorer cell aggregation than its parent strain A. brasilenseSp7(S) both in the exponential and stationary growth phases. Th...

    V. E. Nikitina, E. G. Ponomareva, S. A. Alen'kina, S. A. Konnova in Microbiology (2001)

  16. No Access

    Chapter

    The Influence of Lectins from Azospirillum brasilense Sp7 and Azospirillum lipoferum 59b on the Activity of Plant β-Glucosidase

    Previous work from this Lab has shown that the proteins, lectins detected on the surfaces of the associative nitrogen-fixing soil bacteria Azospirillum brasilense Sp7 and Azospirillum lipoferum 59b come into p...

    S. A. Alen’kina, M. V. Golovko… in Biological Nitrogen Fixation for the 21st … (1998)