Regulation of enzymes involved in the sulphur‐assimilatory pathway
作者:
Malcolm J. Hawkesford,
Andrea Schneider,
Ann R. Belcher,
David T. Clarkson,
期刊:
Zeitschrift für Pflanzenernährung und Bodenkunde
(WILEY Available online 1995)
卷期:
Volume 158,
issue 1
页码: 55-57
ISSN:0044-3263
年代: 1995
DOI:10.1002/jpln.19951580110
出版商: WILEY‐VCH Verlag
数据来源: WILEY
摘要:
AbstractThe 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‐acctylserine (OAS) supply. OAS addition to the medium increased extractable activity and was able, at least partially, to overcome the repression of extraclable activity observed by supply of sulphate and cysteine. Cysteine synthase, the final enzyme of the cysteine biosynthetic pathway, was not regulated under these condition
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