phellogen

phellogen

1

Secondly , It may effected the normal formation of phellogen and the mitosis of cambium in stem , as well as the normal development of phloem fibers .

其次，缺钾可能影响茎中木栓形成层的正常发生，以及影响维管形成层的细胞分裂活动，并可能干扰韧皮部纤维的正常发育。
2

The red substance deposited in phellogen cell wall of the roots was proved to be non-crystal organic and inorganic substance composed of Fe , Al , etc.

病根周皮木栓层细胞壁积聚的红色物质为Fe、Al等元素组成的非晶态有机无机复合物。
3

The main cause of root tuber expanding is that phellogen produces many layers of phelloderm parenchyma cells and vascular cambium produces a lot of secondary vascular tissue that consists of parenchyma .

但在以后的发育过程中，木栓形成层产生了多层栓内层薄壁细胞，维管形成层则产生了大量高度薄壁组织化的次生维管组织，从而形成了肉质膨大的块根。