Plant Biotechnology
Online ISSN : 1347-6114
Print ISSN : 1342-4580
ISSN-L : 1342-4580
Short Communications
Independent roles of glutathione and O-acetyl-L-serine in regulation of sulfur-responsive gene expression in Arabidopsis thaliana
Yoshitaka SogawaNaoko Ohkama-OhtsuHiroaki HayashiTadakatsu YoneyamaToru Fujiwara
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2005 Volume 22 Issue 1 Pages 51-54


We investigated the effects of a four-day treatment with 0.3 mM glutathione (GSH) and 10 mM O-acetyl-L-serine (OAS), negative and positive regulators of sulfur-responsive gene expression, respectively, alone or in combination, on the sulfur-responsive gene expression in ten-day-old Arabidopsis thaliana plants. We determined the relationship between the concentrations of GSH, OAS and sulfate, and expression of sulfur-responsive genes in rosette leaves. The concentrations of GSH and OAS correlated negatively and positively with expression of genes, respectively, suggesting that GSH and OAS independently affect expression of sulfur-responsive genes.

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© 2005 by Japanese Society for Plant Biotechnology
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