周皮细胞变小细胞器减少，短蒂断裂，细胞脱落。
The cells become smaller, short handles break down and cells come off.
栽培丹参根的周皮细胞层数少、色淡，韧皮部与木质部比值小，而野生丹参根的周皮细胞层数多、颜色重，韧皮部与木质部比值大。
In cultivated salvia miltiorrhiza roots light-colored periderm contained less layers of cells and low ratio of phloem to xylem compared with those in wild salvia rniltiorrhiza roots.
周皮发生较迟，其木栓形成层由紧靠内皮层的皮层细胞产生。
The formation of periderm is relatively late and cork cambium is come from the cortex cells which arenear endodermis.
幼期的瘤状体基部表面1—10层细胞内含菌丝，长大的瘤状体形成周皮，内部形成大量维管束和髓；
There was hypha in 1- 10layers cell of surface in young tumour-body base. Grown tumour-body formed periderm, vascular bundle and a lot of pith cells.
西北中生界煤系烃源岩中普遍含有木栓质体，它来源于植物周皮的木栓化细胞壁。
Suberinite occurs commonly in Mesozoic coal measures and terrestrial organic matter source rocks in Northwest China, which is formed from suberized cell walls, particularly in plant periderm.
周皮中的木栓细胞为近方形或不规则型，口径较大，数量多，且层叠排列，最外层的木栓细胞口径大，充满了空气。
Periderm cork cells was nearly square or irregular, large caliber, large quantities, cascading arrangement. The caliber of the outermost layer of cork cells was large, filled the air.
周皮中的木栓细胞为近方形或不规则型，口径较大，数量多，且层叠排列，最外层的木栓细胞口径大，充满了空气。
Periderm cork cells was nearly square or irregular, large caliber, large quantities, cascading arrangement. The caliber of the outermost layer of cork cells was large, filled the air.
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