31种植物甲醇提取物对荔枝霜疫霉菌和炭疽病菌的抑菌活性测定

以荔枝霜疫霉菌(Peronophythora litchii)和荔枝炭疽病菌(Colletotrichum gloeosporioides)两种荔枝上最为重要的病原真菌为供试菌,采用含毒介质的生长速率培养法,对采自广东省的31种植物的甲醇提取物对病原菌菌丝线性生长的抑菌活性进行离体测定。结果表明:在0.01 g/mL浓度下,对荔枝霜疫霉菌抑菌率大于60%的植物有9种,其中黄石斛(Dendrobium tosaense)、毛唇芋兰(Nervilia fordii)、葛(Pueraria phaseoloides)和土牛七(Thunbergia grandiflora)4种植物甲醇提取物的抑菌率达...

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Published in广东农业科学 Vol. 39; no. 3; pp. 1 - 3
Main Author 陈兴龙 潘汝谦 盖云鹏 易赛 肖翔 姜子德 徐汉虹
Format Journal Article
LanguageChinese
Published 华南农业大学细菌和杀菌剂研究室,广东广州,510642%华南农业大学真菌研究室,广东广州,510642%华南农业大学天然农药与化学生物学教育部重点实验室,广东广州,510642 2012
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ISSN1004-874X
DOI10.3969/j.issn.1004-874X.2012.03.001

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Summary:以荔枝霜疫霉菌(Peronophythora litchii)和荔枝炭疽病菌(Colletotrichum gloeosporioides)两种荔枝上最为重要的病原真菌为供试菌,采用含毒介质的生长速率培养法,对采自广东省的31种植物的甲醇提取物对病原菌菌丝线性生长的抑菌活性进行离体测定。结果表明:在0.01 g/mL浓度下,对荔枝霜疫霉菌抑菌率大于60%的植物有9种,其中黄石斛(Dendrobium tosaense)、毛唇芋兰(Nervilia fordii)、葛(Pueraria phaseoloides)和土牛七(Thunbergia grandiflora)4种植物甲醇提取物的抑菌率达到100%;对荔枝炭疽病菌抑菌率大于60%的植物有2种,其中一点红(Emilia sonchifolia)的抑菌率达到100%,地丁草(Corydalis bungeana)的抑菌率为71.35%;同时对两种病原菌的抑菌率都大于50%的是地丁草(C.bungeana)。
Bibliography:44-1267/S
methanol extracts; Peronophythora litchii; Colletotrichum gloeosporioides; antifungal activities
CHEN Xing-long1, PAN Ru-qian1, GAI Yun-peng1, YI Sai1, XIAO Xiangi, JIANG Zi-de2, XU Han-hong3 (1.Laboratory of Fungicides & Bacteria, South China Agricultural University, Guangzhou 510642, China; 2.Laboratory of Fungi, South China Agricultural University, Guangzhou 510642, China; 3.Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China)
31 plant species collected from Guangdong province were screened for their antifungal activities against Peronophythora litchii and CoUetotrichum gloeosporioides, the most important plant pathogens of Litchi. The antifungal compounds of the plant species were extracted with methanol. The antifungal activities of 31 methanol extracts were tested for their inhibition of mycelial radial growth at concentration of 0.01 g/mL. The results showed that the inhibitory rate of methanol extracts of
ISSN:1004-874X
DOI:10.3969/j.issn.1004-874X.2012.03.001