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Effects of Agave Plant Extracts on C. gloeosporioides and Characterization of Inhibitory Compounds

文献类型: 外文期刊

作者: Chang Jin-mei 1 ; Zhang Lu-bin 1 ; Zhan Ru-lin 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Hainan Prov Post Harvest Physiol & Techno, Zhanjiang 524091, Guangdong, Peoples R China

关键词: Mango;Anthracnose;Agave plant extracts;Antibacterial activity;Colletotichum gloeosporioides

期刊名称:RESEARCH JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.233; 五年影响因子:0.252 )

ISSN: 0973-6263

年卷期: 2014 年 9 卷 11 期

页码:

收录情况: SCI

摘要: Anthracnose, a fungal infection of plants caused by Colletotrichum gloeosporioides, affects mango, causing low yield and poor fruit quality. Five species of Agave plants, each of which contained substances that are inhibitory to radial colony growth of C. gloeosporioides, were tested in this study; the species containing the most-inhibitory extract was Mexican maguey (Agave americana L.). Inhibitory substances in dried A. americana were readily extracted with ethanol but not with petroleum ether, ethyl acetate, or chloroform. The ethanol (75%) extract was very effective for controlling anthracnose caused by C. gloeosporioides in mango. Water soluble content of the extract did not diffuse through the dialysis membrane, had a minimum molecular weight of 100 and inhibited the growth of C. gloeosporioides up to 82.41% at 1,000-fold dilution. And the inhibitory substances with molecular weight more than 8,000, restrained the growth of C. gloeosporioides by 62.15% at 1,000-fold dilution. So the estimated molecular weight of the inhibitory substances lies between 100 and 500 and more than 8,000.

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