Journal
BIOCHEMICAL SOCIETY TRANSACTIONS
Volume 33, Issue -, Pages 39-41Publisher
PORTLAND PRESS LTD
DOI: 10.1042/BST0330039
Keywords
anaerobic metabolism; Chlamydomonas reinhardtii; hydrogenase; photofermentation; pyruvate formate-lyase; sulphur deprivation
Categories
Ask authors/readers for more resources
The photosynthetic green alga Chlamydomonas reinhardtii is capable of performing a complex fermentative metabolism which is related to the mixed acid fermentation of bacteria such as Escherichia coli. The fermentative pattern includes the products formate, ethanol, acetate, glycerol, lactate, carbon dioxide and molecular hydrogen (H-2) H-2 production is catalysed by an active [Fe]-hydrogenase (HydA) which is coupled with the photosynthetic electron-transport chain. The most important enzyme of the classic fermentation pathway is pyruvate formate-lyase, which is common in bacteria but seldom found in eukaryotes. An interaction between fermentation, photosynthesis and H2 evolution allows the algae to overcome long periods of anaerobiosis. in the absence of sulphur, the cells establish a photofermentative metabolism and accumulate large amounts of H-2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available