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目的:对不同叶型白木香叶片的生理生化特性进行研究。方法:通过实验对不同叶型白木香叶片的6种生理生化指标进行了研究对比,这些指标包括:丙二醛(MDA)含量、可溶性糖含量、可溶性蛋白质含量、过氧化物酶(POD)活性、过氧化氢酶(CAT)活性、超氧化歧化酶(SOD)活性。结果:不同叶型白木香的POD、CAT、SOD无显著差异;POD、CAT、SOD对清理氧化产物MDA有协调作用;不同叶型白木香可溶性蛋白与MDA有负相关性;不同叶型白木香的可溶性糖含量有显著差异。结论:不同叶型白木香叶片生长活力:小叶型>大叶型、过渡叶型>椭圆叶型。
OBJECTIVE: To study the physiological and biochemical characteristics of leaves of white-leafed wood with different leaf types. Methods: Six kinds of physiological and biochemical indexes of different leaves of Baizhuyao were compared by experiments. The indexes included MDA content, soluble sugar content, soluble protein content, peroxidase (POD) activity , Catalase (CAT) activity and superoxide dismutase (SOD) activity. Results: There was no significant difference in POD, CAT and SOD among different leaf types; POD, CAT and SOD had a coordinating effect on the oxidation of MDA; the soluble protein in different leaf types had a negative correlation with MDA; There was a significant difference in soluble sugar content. Conclusion: The leaf vitality of different leaf type white woody leaves: leaflet type> large leaf type, transitional leaf type> oval leaf type.