When the intine had been formed, it revealed remarkable ATPase activty, and the pollens were full of mitochondria with developed cristae where cytochrome oxidase activity was observed.

　
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  • 而不育系花藥，隨著(zhù)花粉的發(fā)育，花粉粒質(zhì)膜上的ATP酶活性增加不明顯，且內壁發(fā)育異常，在內壁中幾乎沒(méi)有ATP酶活性出現。
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