megaspore
英 ['megəspɔ:] 美 ['megəˌspoʊr]

n.

大孢子，（种子植物的）胚囊；

英英释义

megaspore[ 'meɡəspɔ: ]

• n.larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte

  同义词：macrospore

双语例句

用作名词(n.)

1. Of the four products of a megaspore mother cell, three usually abort.
   在大孢子母细胞分裂产生的四个孢子中，三个会解体消失。
2. The chalazal end megaspore develops into the embryo sac mother cell.
   合点端大孢子发育为胚囊母细胞。
3. The chalazal end megaspore develops into the embryo sac mother cell.
   合点端大孢子发育为胚囊母细胞。

权威例句

Megaspore
Megaspore
megaspore:
MEGASPORE WALL ULTRASTRUCTURE IN ISOETES
Megaspore Abortion: A Consequence of Selective Apoptosis?
Isoëtes Megaspore Surface Morphology: Nomenclature, Variation, and Systematic Importance
Cytokinin-dependent specification of the functional megaspore in the Arabidopsis female gametophyte.
Colloidal crystal-like structure of sporopollenin in the megaspore walls of Recent Selaginella and similar fossil spores
Transcriptome Analysis of the Arabidopsis Megaspore Mother Cell Uncovers the Importance of RNA Helicases for Plant Germline Develo...
The Role of Self-Assembly in Biological Systems: Evidence from Iridescent Colloidal Sporopollenin in Selaginella Megaspore Walls