Abstract
Abstract Photosynthetic cytochrome c reduction by isolated chloroplasts is mediated by substances with characteristics of a "Cytochrome c Reducing Substance" (CRS). A water soluble extract of ether treated, lyophilized chloroplasts (called Sʟ-eth), related to the primary acceptor complex of photo system I, has CRS-activity. It contains p-coumaroyl-meso-tartaric acid. By comparison with model substances, the CRS-activity in chloroplasts is attributed to the iron complex of this compound. A number of other iron complexes and numerous quinones with redox potentials from - 220 mV to + 300 mV are also shown to possess CRS-activity. The CRS preparation from the blue green alga Anabaena cylindrica, as first described by Fujita and Myers, contains Fe3+/EDTA, which has all the chemical and functional properties as reported for CRS
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
