There was short of plasmodesma between SE and CC, between SE/CC complexes and between SEs and phloem parenchyma cells;

筛分子（SE）与伴胞（CC）间、SE CC复合物之间、筛分子与韧皮薄壁细胞间缺少胞间连丝。

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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。

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So the aloin cells were special phloem parenchyma cells because they Shared the same origin with the other phloem cells.

据此，芦荟叶维管束内的大型薄壁细胞的来源与韧皮部相同，属于特化的韧皮部薄壁组织细胞。

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