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以瓜类疫霉病菌液体培养物或磷酸盐诱导时，新疆甜瓜体内与抗病相关的苯丙氨酸解氨酶、过氧化物酶和酪氨酸转氨酶活性，以及木质天含量提高。亚胜环己酮和5-氟尿嘧啶均抑制这些酶的活性。
When induced by Phytophthora meliloti liquid culture or phosphate, the activities of phenylalanine ammonia-lyase, peroxidase and tyrosine aminotransferase related to disease resistance in Xinjiang melon were increased, and the content of woody days was increased. Yasin Cyclohexanone and 5-Fluorouracil all inhibit the activity of these enzymes.