...) 木栓形成层(一层分生组织) 栓内层(数层薄壁细胞) 由外向内可分为以下几个部分 次生韧皮部：位于周皮之内 韧皮射线(phloem ray)：径向运输水分和养料的作用 维管形成层 次生木质部：占据根次生结构的大部分 木射线(xylem ray)：径向运输水分和养料的作用 初生...
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... 韧皮部薄壁细胞 phloem parenchyma cell; phloem parenchy-matous cell 韧皮髓线 phloem ray 韧皮部 phloem; sieve-portion ...
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phloem ray cell 韧皮射线细胞
They were accumulated in the large central vacuoles of secondary phloem parenchyma cells and secondary phloem ray cells.
这些蛋白质积累在韧皮薄壁细胞和韧皮射线细胞的中央大液泡里。
It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
The characters of stem transections are the differences on the size and rang of the phloem cells, the inclusions in xylem ray cells are only found from Taxus yunnanensis.
枝横切面特征中韧皮部细胞形状和排列松紧不一，木射线细胞中内含物仅云南红豆杉有。
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