The gametophyte is derived from the product of a reduction division in the megaspore mother cell . 该配子体是由大孢子母细胞进行减数分裂而来。
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。
In theterosporous species , a distinction is usually made between megaspore mother cells and microspore mother cells 在异型孢子体种类中,可区分为大孢子母细胞和小孢子母细胞。
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,在第一次减数分裂后,大孢子母细胞的染色体仍在一个细胞中,形成一个再组核。
百科解释
A megaspore mother cell, or megasporocyte, is a diploid cell in plants in which meiosis will occur, resulting in the production of four megaspores.Solomon, Eldra P.