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sheath cells中文是什么意思

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用"sheath cells"造句"sheath cells"怎么读"sheath cells" in a sentence

中文翻译手机手机版

  • 鞘状细胞 直立或横卧细胞若于木质线之侧边或部分侧边排列成鞘状时则称之为鞘状细胞

例句与用法

  • Most axons in adult nerve tissue are ensheathed by single or multiple folds of a sheath cell .
    成年人神经组织的大多数轴突外面都包裹着一层或多层鞘细胞。
  • The layers of sheath cells and the diameter of cavity were correlated with taxa at subfamily and generic
    一般草本类型属植物茎中分泌腔直径较小,木本类型属分泌腔直径较大。
  • The epithelial cells were flattened , thin - walled and integrated , the sheath cells were also flattened
    在不同亚科、不同属之间,分泌囊的差异仅仅表现在分泌腔的大小和鞘细胞的层数方面。
  • The diameter of cavity were larger in woody plants than that in herb plants , and the layers of sheath cells were more in aurantioideae than that in rutoideae
    柑桔亚科的大多数种类中,分泌囊鞘细胞层数较多,而芸香亚科的多数种类分泌囊鞘细胞层数较少。
  • In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid , which is transported to the bundle sheath cells , where the carbon dioxide is released , then fixed by the enzyme ribulose bisphosphate carboxylase to form glycerate 3 - phosphate , the first step in the calvin cycle
    在叶肉细胞的叶绿体中二氧化碳与磷酸烯醇丙酮酸结合形成草酰乙酸,后被运到邻近的维管束鞘细胞,在那里二氧化碳被释放,后被核酮糖二磷酸羧化酶固定形成3磷酸甘油酸,这是卡尔文的循环第一步。
  • When inadequate n was added , the chloroplast structure in mesophyll cell was damaged in ear leaf , the amount of carbohydrate decreased in mestome sheath , and excessive n - redistribution and n - transportation to grain from vegetative mass appeared , which resulted in earlier leaf senescence . excessive n application led to too high activity of nitrate reductase , excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf , which resulted in the lack of enough carbohydrate in the lower leaf , meanwhile , the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed , which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf , then the early senescence occured
    氮肥用量不足导致穗叶叶肉细胞叶绿体结构性差,维管束鞘细胞碳水化合物累积减少,营养体氮素再分配率大而引起叶片早衰;而过量供氮则导致生长后期硝酸还原酶活性过高,氮素代谢过旺,消耗了大量碳水化合物,以致下位叶不能得到充足的碳水化合物供应而提早脱落,同时叶肉细胞叶绿体片层结构膨胀,呈“肉汁化”特征,维管束鞘细胞淀粉粒大量消耗,无核淀粉粒出现,从而叶片叶绿素含量下降,光合能力降低而出现早衰。
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