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一个新的水稻斑马叶突变(zebra leaf 1)对叶绿体发育的影响(简报)(英文) 被引量:8

EFFECTS OF ZEBRA LEAF 1-A NEW VARIEGATION MUTATION-ON CHLOROPLAST DEVELOPMENT IN RICE
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摘要 通过γ射线诱变,在水稻粳稻栽培品种9522中得到一个斑马叶突变体zebra leaf 1。为了研究zl1的功能,我们对突变体进行了形态学和细胞学的分析,同时也对此基因突变以后对叶绿体发育和光合作用的影响作了评价。突变体叶片上绿色和枯白色条纹相间,叶绿素含量显著的下降。电镜显示叶绿体类囊体的排列被打乱,变得杂乱无章。这表明zl1突变体在叶绿体发育过程中出现障碍。zl1基因的突变使得净光合速率显著的下降。参与光合作用的一些关键蛋白,比如核酮糖1,5-二磷酸羧化酶/加氧酶(Rubisco)、Rubisco活化酶、D1蛋白、CF1β亚基的表达量也显著的下调。但是,zl1突变体对外界环境非常敏感,有时会没有表型。 All life on earth depends on the process of photosynthesis, which occurs in the chloroplasts. Photosynthesis is responsible for not only CO2 fixation but also other essential plant functions such as the production of carbon skeletons, fatty acids, and pigments and the synthesis of amino acids from inorganic nitrogen . Exploration of the functions of genes in volved in chloroplast development and photosynthesis is a topic of importance in plant science.
出处 《分子细胞生物学报》 CSCD 北大核心 2008年第5期417-422,共6页 Journal of Molecular Cell Biology
基金 the Chinese Academy of Sciences (CAS,KSCX2-YW-N-059) the Ministry of Science and Technology,China(2005cb121106).~~
关键词 水稻 叶绿体发育 光合作用 Rice. Chloroplast development. Photosynthesis
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