megaspore 中文意思是什麼
megaspore
解釋
n. 名詞 【植物；植物學】大孢子。adj. 形容詞 -sporic
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Embryological studies reveal that megaspore and such cells as egg, synergid and antipodals in mature embryo sac initiate the division of forming haploid plants through embryogenesis or callus formation
胚胎學觀察揭示大孢子與胚囊內的卵細胞、助細胞和反足細胞均有可能在培養中啟動分裂，通過胚狀體或愈傷組織形成單倍體植株。 -
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胞進行減數分裂而來。 -
Of the four products of a megaspore mother cell, three usually abort
在大孢子母細胞分裂產生的四個孢子中，三個會解體消失。 -
In theterosporous species, a distinction is usually made between megaspore mother cells and microspore mother cells
在異型孢子體種類中，可區分為大孢子母細胞和小孢子母細胞。 -
In dandelion ( taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus
例如在蒲公英中，在第一次減數分裂后，大孢子母細胞的染色體仍在一個細胞中，形成一個再組核。
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