Author:
Jansz E. R.,Maclean F. I.
Abstract
Cell-free extracts of A. nidulans show high rates of cyclic and noncyclic photophosphorylation and P/2e ratios of about 0.8. These extracts also reduced ferricyanide at rates as high as 700 μmol/mg chlorophyll per hour. Rates of dichlorophenol indophenol (DCPIP) reduction and reduced cytochrome c oxidation similar to those previously reported in the literature have also been observed. The extracts, however, showed no NADP-reducing capacity. Subjecting cell-free extracts to cold shock caused no decline in electron flow but a marked decline in photophosphorylation. The sensitivity of photosynthesis of this organism to cold shock (1, 2) might be explained, at least to some extent, by this decline in photophosphorylation.
Publisher
Canadian Science Publishing
Subject
Genetics,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Immunology,Microbiology
Cited by
12 articles.
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