The apical cell and basal cell act as the ancestor cells of frond and rhizoid.

两个细胞分别成为叶根祖细胞。

Stem with much reduced leaf blades that function as rhizoids below ground, with or without tubers or rhizomes.

地下面，起根作用茎具非常退化叶，有或有块茎或根状茎。

Rhizoid A unicellular rootlike structure found in certain algae and in the gametophyte generation of the bryophytes and some ferns.

一些藻类、苔藓植物裸子植物配子体中存单个细胞形成类似根结构。

The effects of different concentrations of arsenic on spore germination and rhizoid and prothallium growth of Pteris vittata under aseptic condition were studied.

研究无菌条件下不同浓度砷对蜈蚣草孢子萌发、根原叶体生长发育影响。