Recent developments in light-driven H2 production by the green alga, Chlamydomonas reinhardtii

Author(s):  
Khorcheska Batyrova ◽  
Patrick C Hallenbeck
2011 ◽  
Vol 102 (18) ◽  
pp. 8635-8638 ◽  
Author(s):  
Weimin Ma ◽  
Ming Chen ◽  
Lianjun Wang ◽  
Lanzhen Wei ◽  
Quanxi Wang

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuting Wang ◽  
Xiaoshan Zhuang ◽  
Meirong Chen ◽  
Zhiyong Zeng ◽  
Xiaoqi Cai ◽  
...  

2005 ◽  
Vol 33 (1) ◽  
pp. 102-104 ◽  
Author(s):  
M.C. Posewitz ◽  
P.W. King ◽  
S.L. Smolinski ◽  
R. Davis Smith ◽  
A.R. Ginley ◽  
...  

The eukaryotic green alga, Chlamydomonas reinhardtii, produces H2 under anaerobic conditions, in a reaction catalysed by an [FeFe]-hydrogenase. To identify genes that influence H2 production in C. reinhardtii, a library of 6000 colonies on agar plates was screened with sensitive chemochromic H2-sensor films for clones defective in H2 production. Two mutants of particular interest were fully characterized. One mutant, hydEF-1, is unable to assemble an active [FeFe]-hydrogenase. This is the first reported C. reinhardtii mutant that is not capable of producing any H2. The second mutant, sta7-10, is not able to accumulate insoluble starch and has significantly lowered H2-photoproduction rates in comparison with the wild-type. In hydEF-1, anaerobiosis induces transcription of the two reported C. reinhardtii hydrogenase genes, HydA1 and HydA2, indicating a normal transcriptional response to anaerobiosis. In contrast, the transcription of both hydrogenase genes in sta7-10 is significantly attenuated.


PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e61375 ◽  
Author(s):  
Melanie Oey ◽  
Ian L. Ross ◽  
Evan Stephens ◽  
Janina Steinbeck ◽  
Juliane Wolf ◽  
...  

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Yuting Wang ◽  
Xinqin Jiang ◽  
Changxing Hu ◽  
Ting Sun ◽  
Zhiyong Zeng ◽  
...  

2005 ◽  
Vol 33 (1) ◽  
pp. 39-41 ◽  
Author(s):  
A. Hemschemeier ◽  
T. Happe

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 (H2). H2 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 H2.


BIOspektrum ◽  
2021 ◽  
Vol 27 (2) ◽  
pp. 202-204
Author(s):  
Myra N. Chávez ◽  
Benedikt Fuchs ◽  
Jörg Nickelsen

AbstractWe have recently proposed a novel strategy named photosynthetic tissue engineering to overcome clinical problems due to hypoxia. The idea is based on transgenic photoautotrophic microorganisms that produce oxygen and at the same time secrete functional recombinant proteins into tissues. In particular, the unicellular green alga Chlamydomonas reinhardtii has successfully been used to boost the regenerative potential of several biomedical devices, such as dermal scaffolds and surgical sutures.


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