Arabidopsis SNRK2.3 protein kinase is involved in the regulation of sulfur-responsive gene expression and O-acetyl-L-serine accumulation under limited sulfur supply
The role of the Arabidopsis thaliana genes SNRK2s, which are similar to the sulfur-regulatory gene SAC3 of Chlamydomonas reinhardtii, in the response of plants to sulfur was studied. The Arabidopsis genome contains 10 genes (SNRK2.1 to SNRK2.10) similar to SAC3. Among these genes, transcript accumul...
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Published in | Soil science and plant nutrition (Tokyo) Vol. 52; no. 2; pp. 211 - 220 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Melbourne, Australia
Taylor & Francis Group
01.04.2006
Blackwell Publishing Asia |
Subjects | |
Online Access | Get full text |
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Summary: | The role of the Arabidopsis thaliana genes SNRK2s, which are similar to the sulfur-regulatory gene SAC3 of Chlamydomonas reinhardtii, in the response of plants to sulfur was studied. The Arabidopsis genome contains 10 genes (SNRK2.1 to SNRK2.10) similar to SAC3. Among these genes, transcript accumulation of several genes including SNRK2.3 was induced in response to sulfur starvation. Independently isolated transgenic A. thaliana lines carrying T-DNA insertions in SNRK2.3 exhibited reduced sulfur-starvation induction of the transcript of the sulfate transporter SULTR2;2 gene, whereas the accumulation of O-acetyl-L-serine under sulfur deficiency conditions increased. These results suggest that SNRK2.3 plays a beneficial role in the regulation of gene expression and metabolism in response to sulfur starvation. |
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Bibliography: | F60 2007005819 Present address: 1‐1‐1 Yayoi, Bunkyo‐ku, Tokyo 113‐8657, Japan. |
ISSN: | 0038-0768 1747-0765 |
DOI: | 10.1111/j.1747-0765.2006.00025.x |