Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
PLEIOTROPIC EF-FECT OF SALT STRESS ON MOTILITY AND SYNTHESIS OF SECRETED RIBONUCLEASES BY BACILLUS PUMILUS
Form of presentationArticles in Russian journals and collections
Year of publication2017
Языканглийский
  • Evtyugin Vladimir Gennadevich, author
  • Kolpakov Aleksey Ivanovich, author
  • Kharitonova Mayya Aleksandrovna, author
  • Bibliographic description in the original language Kharitonova M.A. Pleiotropic ef-fect of salt stress on motility and synthesis of secreted ribonucleases by Bacillus pumilus / M.A. Khari-tonova, V.G. Evtugyn, A.I. Kolpakov // BioNanoScience. – 2017. – V.7, I. 4. – P. 623 - 626.
    Annotation Members of the genus Bacillus can successfully counteract a sudden increase in salinity. In addition to the accumulation of osmolytes, saline stress also affects other aspects of bacterial physiology such as exoenzymes synthesis and motility. Here, we have shown that increase of salinity in growth medium leads to elevated biosynthesis level of lowmolecular weight ribonuclease (RNase) binase I from Bacillus pumilus. The same effect was established previously for highmolecular weight binase II. Transmission electron microscopy revealed the absence of flagella and some other changes in salt-stressed cells of B. pumilis. We also detected the gene sequences homologous to the recognition sites of response regulator DegU in the binase I and binase II promoters. Using the B. subtilis strains with various mutations in DegU gene, we found that the two-component signal transduction system DegS-DegU which regulates the motility under salt stress participates in the control of biosynthesis for both secreted RNase of B. pumilis (binase I and binase II).
    Keywords Ribonuclease . Binase I . Binase II . Bacillus pumilus . Salt stress . Motility . Flagella
    The name of the journal BioNanoScience
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=221381&p_lang=2
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