نتایج جستجو برای: obliquus scenedesmus
تعداد نتایج: 1456 فیلتر نتایج به سال:
Apparent size of the photosynthetic unit (chlorophyll/O(2) per flash) was estimated by O(2) yield of repetitive short flashes on cell samples taken at various times from a synchronized culture (14-hour light, 10-hour dark) of Scenedesmus obliquus. Unit size was essentially invariant (< 10% variation) with a mean value of 1750 chlorophyll/O(2) per flash. In contrast, the light-saturated photosyn...
Harmful algal blooms have become a great challenge to global aquatic ecosystems over the past decades. Given their low toxicity, high selectivity, and environment-friendly properties, the use of natural products and their analogues as algicides has proven to be particularly efficient. In the present study, algicidal activity of naturally occurring bacillamides A-C, alkaloid (1), and neobacillam...
Evidence for nickel in the soluble hydrogenase from the unicellular green alga Scenedesmus obliquus.
Cultures of the green alga Scenedesmus obliquus were grown in the presence of either the chelating reagent EDTA or NiCl2 in various concentrations and assayed for hydrogenase catalyzed photohydrogen evolution after an anaerobic dark adaptation period. Cultivation of algae in the presence of 100 microM EDTA inhibited the formation of hydrogenase activity by 37%. After a cultivation of the cells ...
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