同时，人工剪叶接种能引起叶组织内过氧化化物酶同工酶的变化，但变化的主要原因可能不是白叶枯病病菌的侵染所造成，而是剪叶对叶片的伤害所致。

Meanwhile, the inoculation treatment by clipping can cause he change of the peroxidase isozymes of the inoculated leaves, but it was the cut, not the pathogen, that resulted in the change.

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方法：采用胶原酶灌注法及剪碎消化法分离大鼠胎肝干细胞，并用含10%优等胎牛血清的H - DMEM培养液培养。

Methods Collagenase perfusion method and mechanical cutting method were used to isolate HSCs from rat fetal liver which were then cultivated by H-DMEM containing 10% fetal bovine serum.

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