prothalli

prothalli

美 　英

• n.原叶体

词形变化

复数：prothalli  

英汉解释

n.

1. 原叶体

英英解释

n.	1. a flat green organ bearing the reproductive organs of ferns and related plants

例句

Mature prothalli are cordate -shaped. Profuse unicellular hairs occur on the surface and margin of the prothalli.

原叶体边缘及表面均可产生毛状体，数量丰富，为单细胞。

the prothalli are saprophytic , irregularly branched , subterranean bodies.

原叶体是腐生的，不规则分枝的地下体。

Young embryos can be observed from prothalli about 2 weeks after fecundation.

精卵受精后2周左右即可观察到从原叶体上生成的幼胚。

Hairs can occur on both the surfaces and margin of the prothalli .

原叶体边缘及背腹面均可产生毛状体。

Young embryos can be observed from the prothalli 1 month after sowing.

原叶体受精后1个月内即可观察到从原叶体上生成的幼胚。