Acetylene reduction (nitrogen fixation) by cyanobacteria grown under alternating light-dark cycles
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منابع مشابه
Nitrogen fixation (acetylene reduction) by epiphytes of freshwater macrophytes.
The involvement of epiphytic microorganisms in nitrogen fixation was investigated in a shallow freshwater pond near Ithaca, N.Y. The acetylene reduction technique was used to follow diel and seasonal cycles of nitrogen fixation by epiphytes of Myriophyllum spicatum. Acetylene-reducing activity was maximal between noon and 6 p.m., but substantial levels of activity relative to daytime rates cont...
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Rhodospirillum rubrum was shown to grow fermentatively on fructose with N2 as a nitrogen source. The nitrogenase activity of these cells was regulated by the NH4+ switch-off/switch-on mechanism in a manner identical to that for photosynthetically grown cells. In vitro, the inactive nitrogenase Fe protein from fermenting cells was reactivated by an endogenous membrane-bound, Mn2+-dependent activ...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1981
ISSN: 0378-1097
DOI: 10.1016/0378-1097(81)90240-8