REGULATION OF ENZYMES INVOLVED IN THE SULFUR-ASSIMILATORY PATHWAY

被引：15
作者：
HAWKESFORD, MJ
SCHNEIDER, A
BELCHER, AR
CLARKSON, DT
机构：
[1] Department of Agricultural Sciences, University of Bristol, Institute of Arable Crops Research, Long Ashton Research Station, Bristol
来源：
ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE | 1995年 / 158卷 / 01期
关键词：
D O I：
10.1002/jpln.19951580110
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The regulation of enzymes involved in sulphate assimilation in plants has been investigated. Extractable activity of ATP sulphurylase (the first enzyme of the assimilatory pathway) has been shown to be regulated by sulphate availability and O-acetylserine (GAS) supply. OAS addition to the medium increased extractable activity and was able, at least partially, to overcome the repression of extractable activity observed by supply of sulphate and cysteine. Cysteine synthase, the final enzyme of the cysteine biosynthetic pathway, was not regulated under these conditions.
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页码：55 / 57
页数：3
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