期刊
CURRENT OPINION IN PLANT BIOLOGY
卷 3, 期 3, 页码 188-195出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/S1369-5266(00)00063-7
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Recent research indicates that several sulfate transporters exhibiting different tissue specificities and modes of expression - may play distinct roles in sulfate uptake within specific tissues and in long-distance sulfate translocation. The transcription levels of particular genes and feedback inhibition of serine acetyltransferase play major roles in regulating sulfur assimilation and cysteine synthesis. O-acetylserine and glutathione presumably act within the cysteine synthesis pathway as derepressor and repressor, respectively. A unique autoregulatory mechanism that stabilizes mRNA levels has recently been proposed for the regulation of methionine synthesis.
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