Influence of oxidative stressors on the photosynthetic apparatus of the methyl viologen-resistant mutant Prq20 of cyanobacterium Synechocystisстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:Delayed Chl a fluorescence and the CO2-dependent O2 exchange were measured to assess the effect of oxidative stress inducers methyl viologen and benzyl viologen, cumene hydroperoxide, menadione, and H2O2 as well as high irradiance on the photosynthetic apparatus of Synechocystis sp. PCC 6803 wild type and its methyl viologen-resistant mutant Prq20 with impaired regulatory gene prqR. The extent of damage upon exposure to viologens proved much smaller in the mutant; the causes of this are analyzed.