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megaspore

英 ['meg?sp??] 美['m?g?,spor]
  • n. 大孢子；（種子植物的）胚囊

英文詞源

megaspore (n.)
1857, from mega- + spore.

雙語(yǔ)例句

1. The gametophyte is derived from the product of a reduction division in the megaspore mother cell.
該配子體是由大孢子母細(xì)胞進(jìn)行減數(shù)分裂而來(lái).

來(lái)自辭典例句

2. A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.
孢原細(xì)胞處于珠心表皮之下, 直接起大孢子母細(xì)胞的功能.

來(lái)自互聯(lián)網(wǎng)

3. Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分體為線形, 合點(diǎn)端功能大孢子發(fā)育成為蓼型胚囊.

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4. The functional megaspore in the linear tetrad is the one endsac is the polygonum type.
大孢子四分體為直線型、少數(shù)為“T”型排列,合點(diǎn)端的一個(gè)為功能性大孢子.

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5. As development goes on, callose fluorescence disappears in the chalazal wall of diplosporous functional megaspore.
二倍體功能大孢子的合點(diǎn)端細(xì)胞壁內(nèi)的胼胝質(zhì)熒光消失.

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