21种植物提取物对3种柑桔病原真菌抑菌活性的初步研究.pdfVIP

安徽农业大学学报，2008，35(1)：42-45 Journal of Anhui Agricultural University 21种植物提取物对3种柑桔病原真菌抑菌活性的初步研究 丘 麒，罗建军，施楚新，曾 勇，钟国华 (华南农业大学资源环境学院，广州510642) 摘 要：采用菌丝生长速率法测定油茶籽等21种植物甲醇提取物对柑桔青霉病菌、柑桔绿霉病菌和柑桔酸腐 病菌的抑菌活性。结果表明，对柑桔酸腐病菌抑菌活性较高的是油茶籽、甘草、桃花心木和水茄提取物，以含干粉 10 mg·mL 处理后5 d抑菌率分别为96．96％、76．44％、82．73％和69．60％。对柑桔青霉病菌抑茵率达70％以上 的有油茶籽、海芋、山菅兰、水茄、上海叶冬青等的提取物，对柑桔绿霉病菌抑菌率达60％以上的有油茶籽、桃花心 木、侧柏、海芋、山菅兰、水茄、深山含笑等的提取物。综合而言，油茶籽甲醇浸提物对柑桔青霉病菌、柑桔绿霉病菌 和柑桔酸腐病菌的抑菌活性高于其他植物的甲醇浸提物。 关键词：柑桔青霉病菌；柑桔绿霉病菌；柑桔酸腐病菌；抑菌活性 中图分类号：$482．292 文献标识码：A 文章编号：1672-352X(2008)01-0042-04 Antifungal activity of extracts from 21 species plants against the three pathogenic fungi of citrus QIU Qi，LUO Jian-jun，SH1 Chu—xin，ZENG Yong，ZHONG Guo—hua (College of Natural Resource and Environment，South China Agricultural University，Guangzhou 510642) Abstract：Antifungal activity of the extracts of Camellia oleifera and other 20 species plants against Penicillium italicum，Penicillium digitatum Sacc．and Geotrichum candidum Link was determined using mycelial growth rate method，which may contribute to a new method for biological control of the three pathogenic fungi．The results indicated that the inhibition rates of extracts from Camellia oleifera at 10 mg·mL一 against Geotrichum candidum was above 90％ ，the inhibition rates of extracts from Glycyrrhiza uralensis Fisch．，Swietemia mahogany Jack and Solanum torvum against Geotrichum candidum were between 60％ ～90％．The inhibition rates of extracts from Camellia oleifera，Alocasia macrorriza(L．)Schott，Dianella ensifolia(L．)DC，Solanum torvum and Ilex latifolia Thunb against Penicillium italicum were above 70％．The inhibition rates of extracts from Camellia oleirera，Swietemia mahogany Jack，Platycladus orientalis(L)Franco，Alocasia rnacrorriza(L．)schott， Dianella ensifolia(L．)