课题基金 / 基金详情

Molecular- and Cell-Biological Study of Plant Senescence

Molecular- and Cell-Biological Study of Plant Senescence
植物衰老的分子和细胞生物学研究
批准号:
03304005
负责人:
WATANABE Akira
金额:
$13.12万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Co-operative Research (A)
财政年份:
1991
资助国家:
日本
项目状态:
已结题
起止时间:
1991 至 1993

项目摘要

项目成果

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相关文献

中文摘要
翻译
Ishii观察到CO^2的扩散阻力增加,导致感官叶片的光合作用效率低下。Katoh从对光合作用的各种测量中推断,遮荫叶片的部分光合作用减少可以看作是光化学反应系统对较低光强的一种适应。由于已知RuBisCO蛋白在衰老叶片中显著减少,Mae成功地检测到了其大亚基在衰老水稻叶片叶绿体中的降解产物。福田成功地分离出了一种针对发育中的气管元件的蛋白酶的cDNA克隆,气管元件的细胞成分与衰老细胞的降解相似。渡边发现,胞质谷氨酰胺合成酶的三个成员基因中有两个在萝卜衰老过程中受到激活调控。Yamaya发现这种谷氨酰胺合成酶只存在于水稻的维管束细胞中。他还发现nadh依赖的谷氨酸合成酶专门定位于非常年轻的未展开的叶子和发育中的谷物,因此负责接收从来源器官转运的谷氨酰胺。川崎在准备RFLP制造者分离水稻中负责保持绿色突变的基因方面取得了进展。Azumi分析了他从萝卜中提取的黑暗诱导基因启动子区域在转基因烟草植株上的功能。
英文摘要
Ishii observed that diffusion resistance of CO^2 increases to result in inefficient photosynthesis in senesing leaves. Katoh deduced from various measurements of photosynthesis that a part of decrease in photosynthesis in shadowed leaves can be regarded as a kind of adaptation of photochemical reaction system to the lower light intensities. As RuBisCO protein was known to markedly decrease in senescent leaves, Mae was successful in detecting the degradation products of its large subunit in chloroplasts from senecing rice leaves.Fukuda was successful in isolating cDNA clones for a protease specific to developing tracheary elments, in which cellular constituents are degraded similarly to senescing cells. Watanabe found that two of the three members of cytosolic glutamine synthetase genes are activated in senescing radish regulated. Yamaya found that this glutamine synthetase localizes only in vascular bundle cells in rice. He also found that NADH-dependent glutamate synthase localizes specifically in very young unexpanded leaves and developing grains, and is, therefore responsible for receiving glutamine that is translocated from source organs.Kawasaki had a progress in preparing RFLP makers to isolate a gene which is responsible for a stay-green mutation in rice. Azumi analyzed the function of promoter region of his dark-inducible gene from radish in transgenic tobacco plants.
期刊论文(108)
专著(0)
科研奖励(0)
会议论文
川崎信二: "葉の老化のしくみを探る" 化学と生物. 28. 560-562 (1990)
川崎真司:“探索叶子老化的机制”化学与生物学 28. 560-562 (1990)。
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通讯作者:
Konishi,T.Watanabe,A.: "Transport of proteins into the thylakoid lumen-Stromal processing and energy requirements for the import of the precursor tD the 23-kDa protein of PS II" Plant Cell Physiol. 34. 315-319 (1993)
Konishi,T.Watanabe,A.:“蛋白质进入类囊体腔的转运 - PS II 的 23-kDa 蛋白质前体 tD 的基质加工和能量需求”植物细胞生理学。
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Katoh, S.: "Effects of light, nutrient and age on distribution of nitorogen in leaves of a vine grwon horizontally to avoid mutual shading." Oecologia. (in press). (1994)
Katoh, S.:“光照、养分和年龄对水平生长以避免相互遮荫的藤蔓叶子中氮素分布的影响。”
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通讯作者:
Konishi,T.Maruta,Y.Shinohara,K.Watanabe,A: "Transit peptides of thylakoid luminal proteins:the sites of stromal processing are conserved among higher plants" Plant Cell Physiol. 34. 1081-1087 (1993)
Konishi,T.Maruta,Y.Shinohara,K.Watanabe,A:“类囊体腔蛋白的转运肽:基质加工的位点在高等植物中是保守的”植物细胞生理学。
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