Isolation and molecularanalysis of a type Ⅲ polyketide synthase gene from Polygonum cuspidatum

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Polygonum cuspidatum Sieb.et Zucc is a perennial herb,used as a traditionalmedicinal plant in Asia countries.Various bioactive chemical compounds have been isolated fromt his plant,including anthraquinones,stilbenes,flavonoids,and other polyphenols.
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