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首页> 外文期刊>Russian Journal of Plant Physiology >CO2 exchange and mesophyll structure in second-year needles of Abies sibirica Ledeb.
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CO2 exchange and mesophyll structure in second-year needles of Abies sibirica Ledeb.

机译:冷杉第二年的针叶中的二氧化碳交换和叶肉结构。

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摘要

Seasonal changes in the net photosynthesis and dark respiration in second-year needles of Siberian fir were investigated. The functional state of needles was shown to determine the structural features of mesophyll cells. Current-year shoot growth is one of the major factors affecting the structure and functional activity of second-year needles during the growing period. The greatest changes occur in the number of mitochondria in mesophyll cells and the respiration rate of second-year needles. The rate of photosynthesis in second-year needles was shown to depend on the number of thylakoids in mesophyll chloroplasts.
机译:研究了西伯利亚冷杉二年生针叶净光合作用和暗呼吸的季节性变化。显示针的功能状态决定叶肉细胞的结构特征。当年芽的生长是影响第二年针在生长期的结构和功能活性的主要因素之一。最大的变化发生在叶肉细胞中的线粒体数量和二年级针的呼吸速率。二年级针的光合作用速率取决于叶肉叶绿体中类囊体的数量。

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