| Autor: |
Shelud'ko, A., Tugarova, A., Il'chukova, A., Varshalomidze, O., Antonyuk, L., El'-Registan, G., Katsy, E. |
| Předmět: |
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| Zdroj: |
Microbiology (00262617); Jul2013, Vol. 82 Issue 4, p434-438, 5p |
| Abstrakt: |
In liquid media, rhizobacteria Azospirillum brasilense are motile by means of a polar flagellum and in semisolid media, also by means of additionally synthesized lateral flagella. In the presence of 4- n-hexylre-sorcinol (0.04-0.10 mM), the swimming rate of A. brasilense Sp245 decreased significantly. At the concentrations over 0.10 mM, motility was completely suppressed. The presence of 4- n-hexylresorcinol in liquid medium also had a negative effect on motility of the cells of Sp245 and other A. brasilense strains (Sp7, Cd, and SR75). The concentrations of 5-methylresorcinol which negatively affected the rate of bacterial spreading in semisolid media were an order of magnitude higher than those of 4- n-hexylresorcinol. Alkylresorcinols, which belong to alkylhydroxybenzene autoregulators, probably affect the cellular mechanisms (systems) responsible for flagella rotation in azospirilla. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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