四分孢子(tetraspore)
關(guān)鍵詞: 四分孢子來源: 互聯(lián)網(wǎng)
① 在某些紅藻(如多管藻,石花菜)的四分孢子囊內(nèi),經(jīng)減數(shù)分裂產(chǎn)生的 4個具單倍染色體數(shù)的不動孢子。萌發(fā)后,形成雌、雄配子體。②花粉母細(xì)胞經(jīng)減數(shù)分裂形成的 4個集結(jié)在一起的子細(xì)胞。每個子細(xì)胞具單倍染色體數(shù),亦稱為四分體。
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