Characterization and molecular cloning of a serine hydroxymethyltransferase 1 (OsSHM1) in rice
文献类型: 外文期刊
第一作者: Wang, Dekai
作者: Wang, Dekai;Liu, Heqin;Li, Sujuan;Zhai, Guowei;Shao, Jianfeng;Tao, Yuezhi;Wang, Dekai;Liu, Heqin;Li, Sujuan;Zhai, Guowei;Shao, Jianfeng;Tao, Yuezhi
作者机构:
关键词: gene;molecular cloning;reactive oxygen species;rice;serine hydroxymethyltransferase
期刊名称:JOURNAL OF INTEGRATIVE PLANT BIOLOGY ( 影响因子:7.061; 五年影响因子:6.002 )
ISSN: 1672-9072
年卷期: 2015 年 57 卷 9 期
页码:
收录情况: SCI
摘要: Serine hydroxymethyltransferase (SHMT) is important for one carbon metabolism and photorespiration in higher plants for its participation in plant growth and development, and resistance to biotic and abiotic stresses. A rice serine hydroxymethyltransferase gene, OsSHM1, an ortholog of ArabidopsisSHM1, was isolated using map-based cloning. The osshm1 mutant had chlorotic lesions and a considerably smaller, lethal phenotype under natural ambient CO2 concentrations, but could be restored to wild type with normal growth under elevated CO2 levels (0.5% CO2), showing a typical photorespiratory phenotype. The data from antioxidant enzymes activity measurement suggested that osshm1 was subjected to significant oxidative stress. Also, OsSHM1 was expressed in all organs tested (root, culm, leaf, and young panicle) but predominantly in leaves. OsSHM1 protein is localized to the mitochondria. Our study suggested that molecular function of the OsSHM1 gene is conserved in rice and Arabidopsis.
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