Sulfite oxidation in plant peroxisomes |
| |
Authors: | Robert?H?nsch Email author" target="_blank">Ralf?R?MendelEmail author |
| |
Institution: | (1) Department of Plant Biology, Technical University of Braunschweig, Humboldtstrasse 1, 38106 Braunschweig, Germany |
| |
Abstract: | For a long time, occurrence and nature of sulfite oxidase activity in higher plants were controversially discussed. During
primary sulfate assimilation in the chloroplast, sulfate is reduced via sulfite to organic sulfide, which is essential for
cysteine biosynthesis. However, it has also been reported that sulfite can be oxidized back to sulfate, e.g. when plants were
subjected to SO2 gas. Recently, work from our laboratory has identified the sulfite oxidase as the fourth member of molybdenum-enzymes in
plants. Here we discuss how nature separates the two counteracting pathways – sulfate assimilation and sulfite detoxification
– into two different cell organelles and we will also discuss how these two processes are coregulated. |
| |
Keywords: | peroxisome sulfite oxidase sulfate assimilation |
本文献已被 PubMed SpringerLink 等数据库收录! |
|