The effect of extracellular carbonic anhydrase (CAex) on stable carbon isotope fractionation in algae is still unclear. The stable carbon isotope composition and algal growth in the presence and absence of the membrane-impermeable CA inhibitor acetazolamide were compared in Chlamydomonas reinhardtii and Chlorella vulgaris. The CAex of both algal species contributed about 9aEuro degrees of the stable carbon isotope fractionation and exhibited a dosage effect. Therefore, evidence in vivo that CAex leads to a larger carbon isotope fractionation of algae is presented.
Publication name |
CHINESE SCIENCE BULLETIN Volume: 57 Issue: 7 Pages: 786-789 Published: MAR 2012 |
Author(s) |
Wu YanYou; Xu Ying; Li HaiTao; Xing DeKe
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Corresponding author |
WU Yanyou
wuyanyou@mails.gyig.ac.cn
Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China
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