细胞壁由胞间层、初生壁和次生壁构成的细胞称为厚壁细胞。厚壁细胞起支持作用。
每个维管束的韧皮部外面有数层厚壁细胞，增加叶柄的机械支持作用。
There are some sclerenchymatous cells outside the phloem of each vascular bundle to increase the supporting force of the petiole.
厚壁细胞和薄壁细胞的细胞壁厚度减小，双折射也降低，并且细胞壁的分层现象变得不明显。
Reductions of cell wall thickness and birefringence were observed in both fiber (sclerenchyma) and parenchymal cells, together with blurring of the wall's layered structures.
与淹水条件相比，旱作条件下杂交稻根通气组织形成较迟，常规粳稻根皮层厚壁细胞排列较疏松。
Compared with inundatory condition, aerobic condition retarded the formation of aerenchyma of hybrid rice roots and made the cortex sclerenchymatous cells array loosely in conventional japonica root.
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