您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Introduction of genes encoding C4 photosynthesis enzymes into rice plants: physiological consequences

文献类型： 外文期刊

作者： Ku, MSB 1 ; Cho, DH 2 ; Li, X 2 ; Jiao, DM 2 ; Pinto, M 2 ; Miyao, M 2 ; Matsuoka, M 2 ;

作者机构： 1.Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA

2.Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA; Kangwon Natl Univ, Coll Agr & Life Sci, Div Appl Plant Sci, Kangwon Do, South Korea; Jiangsu Acad Agr Sci, Inst Agrobiol Genet & Physiol, Nanjing 210014, Peoples R China; Univ Chile, Fac Ciencias Agr & Forestales, Santiago, Chile; Natl Inst Agrobiol Resources, Tsukuba, Ibaraki 3058602, Japan; Nagoya Univ, BioSci Ctr, Chikusa Ku, Nagoya, Aichi 4648601, Japan

期刊名称：RICE BIOTECHNOLOGY: IMPROVING YIELD, STRESS TOLERANCE AND GRAIN QUALITY （ 影响因子：1.879； ）

ISSN： 1528-2511

年卷期： 2001 年 236 卷

页码：

收录情况： SCI

摘要： Transgenic rice plants expressing the maize phosphoenolpyruvate carboxylase (PEPC) and pyruvate, orthophosphate dikinase (PPDK) exhibit a higher photosynthetic capacity (up to 35%) than untransformed plants. The increased photosynthetic capacity in these plants is mainly associated with an enhanced stomatal conductance and a higher internal CO(2) concentration. Plants simultaneously expressing high levels of both enzymes also have a higher photosynthetic capacity. The results suggest that both PEPC and PPDK play a key role in organic acid metabolism in the guard cells to regulate stomatal opening. Under photoinhibitory and photooxidative conditions, PEPC transgenic rice plants are capable of maintaining a higher photosynthetic rate, a higher photosynthetic quantum yield by PSII and a higher capacity to dissipate excess energy photochemically and non-photochemically than untransformed plants. Preliminary data from field trials show that relative to untransformed plants, the grain yield is about 10-20% higher in selected PEPC and 30-35% higher in PPDK transgenic rice plants, due to increased tiller number. Taken together, these results suggest that introduction of C4 photosynthesis enzymes into rice has a good potential to enhance its tolerance to stress, photosynthetic capacity and yield.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台