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Roles of the bundle sheath cells in leaves of C3 plants

机译:束鞘细胞在C 3 植物叶片中的作用

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摘要

This review considers aspects of the structure and functions of the parenchymatous bundle sheath that surrounds the veins in the leaves of many C3 plants. It includes a discussion of bundle sheath structure and its related structures (bundle sheath extensions and the paraveinal mesophyll), its relationship to the mestome sheath in some grasses, and its chloroplast content. Its metabolic roles in photosynthesis, carbohydrate synthesis and storage, the import and export of nitrogen and sulphur, and the metabolism of reactive oxygen species are discussed and are compared with the role of the bundle sheath in leaves of C4 plants. Its role as an interface between the vasculature and the mesophyll is considered in relation to the movement of water and assimilates during leaf development, export of photosynthates, and senescence.
机译:这篇综述考虑了围绕许多C 3 植物叶片中的静脉的薄壁组织束鞘的结构和功能的各个方面。它讨论了束鞘结构及其相关结构(束鞘延伸和叶旁叶肉),它与某些草中的节茎鞘的关系以及叶绿体含量。讨论了其在光合作用,碳水化合物的合成和储存,氮和硫的进出口,活性氧代谢方面的代谢作用,并与束鞘在C 4 植物。人们认为它在脉管系统和叶肉之间的接口作用与叶片发育,光合产物输出和衰老过程中水分和同化物的运动有关。

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  • 来源
    《Journal of Experimental Botany》 |2008年第7期|p.1663-1673|共11页
  • 作者

    Richard C. Leegood*;

  • 作者单位

    Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK;

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  • 正文语种 eng
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