;Because the mature tissue of velvetleaf contains lots of secondary metabolites such as alkaloid and phenolic, it is difficult to obtain high purity DNA from mature tissue of velvetleaf.
摘
青麻成熟组织中酚类、黄酮类等次生代谢物较多，从中提取出高纯度的DNA比较困
。
Because the mature tissue of velvetleaf contains lots of secondary metabolites such as alkaloid and phenolic, it is difficult to obtain high purity DNA from mature tissue of velvetleaf.
摘青麻成熟组织中酚类、黄酮类等次生代谢物较多，从中提取出高纯度的DNA比较困。
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