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Position: Home > Articles > Isolation and identification of antifungal constituents from the leaf of Myrica rubra Chinese Journal of Pesticide Science 2011,13 (2) 149-154

杨梅叶抑菌活性成分初步分离与鉴定

作  者:
张绍勇;李桥;陈安良
单  位:
浙江农林大学林业与生物技术学院
关键词:
杨梅叶;萃取分离;抑菌活性;活性成分
摘  要:
用石油醚、氯仿、乙酸乙酯和正丁醇分别对杨梅叶甲醇提取物进行了萃取,得不同萃取相。测定了其对番茄灰霉病菌Botrytis cinerea、番茄早疫病菌Alternaria solani、水稻立枯丝核Rhizoctoniasolani、小麦禾谷镰刀菌Fusarium graminearum、黄瓜炭疽病菌Colletotrichum lagenarium、玉米大斑病菌Setosphaeria turcica等植物病原菌的抑菌活性。结果表明,乙酸乙酯相和正丁醇相的抑菌活性较好。对乙酸乙酯相进一步分离得到7个化合物,经电喷雾质谱(ESI-MS)、核磁共振氢谱(1H NMR)和碳谱(13C NMR)鉴定其分别为已知化合物山楂酸(1)、3-O-反-对-香豆酰基马斯里酸(2)、3-O-没食子酰二氢杨梅素(3)、斛皮素-7-O-鼠李糖甙(4)、杨梅素3-O-鼠李糖甙(5)、杨梅素-3-O-鼠李糖(3-O-没食子酰)甙(6)和杨梅素-3-O-鼠李糖(2-O-没食子酰)甙(7)。孢子萌发法测定结果表明,化合物3~6对番茄灰霉病菌和玉米大斑病菌的孢子萌发具有较好的抑制作用,EC50值分别在3.44~4.59 mg/L和8.85~11.6 mg/L之间。
译  名:
Isolation and identification of antifungal constituents from the leaf of Myrica rubra
作  者:
ZHANG Shao-yong,LI Qiao,CHEN An-liang (School of Forestry and Biotechnology,Zhejiang Agriculture & Forestry University,Lin'an 311300,Zhejiang Province,China)
关键词:
Myrica rubra leaves;extract and isolation;antifungal activity;active component
摘  要:
Methanol extract of the leaves of Myrica rubra was further partitioned with petroleum ether,chloroform,ethyl acetate and n-butanol respectively and obtained four crude extracts.Antifungal activity of the four crude extracts was tested.It showed that ethyl acetate and n-butanol extract had higher activity.Their structures were identified by ESI-MS,1H NMR and 13C NMR as maslinic acid(1),3-O-trans-p-coumaroyl maslinic acid(2),3-O-galloyl-dihydromyricetin(3),quercetin-7-O-rhamonside(4),myricetin-3-O-rhamnoside(5),myricetin-3-O-rhamnoside(3-O-galloyl)(6),myricetin-3-O-rhamnoside(2-O-galloyl)(7).The inhibition effects of compound 3,4,5 and 6 had been tested by method of spore germination and the result showed that all the 4 compounds have strong inhibiting effect on the tested plant pathogens.Botrytis cinerea and Setosphaeria turcica which LC50 velues were between 3.44-4.59 mg/L and 8.85-11.6 mg/L,respectively.

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