| 香蕉枯萎病菌新毒素——白僵菌素的鉴定 |
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| 引用本文： | 李春雨,陈石,左存武,邝瑞彬,易干军.香蕉枯萎病菌新毒素——白僵菌素的鉴定[J].园艺学报,2011,38(11):2092-2098. |
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| 作者姓名： | 李春雨 陈石 左存武 邝瑞彬 易干军 |
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| 作者单位： | 1. 广东省农业科学院果树研究所,广州,510640
2. 福建省农业科学院闽台园艺研究中心,福建漳州,363005 |
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| 基金项目： | 国家自然科学基金项目(30971991); 广东省自然科学基金项目(10151064001000007); 公益性行业(农业)科技专项(200903049); 中非政府间合作项目(2010DFA32470) |
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| 摘 要： | 调查并分离了广东、海南、广西、福建和云南等香蕉枯萎病疫区的一批病原菌样本。利用高效液相色谱—电喷雾离子阱质谱（HPLC-ESI-MS）法对所分离的28个Fusarium oxysporum f. sp. cubense菌株的次生代谢产物进行初步分析。发现了分子量为179 D的镰刀菌酸及分子量约为783 D的未知产物；利用1H-NMR对一株4号生理小种的未知产物进行了结构测定，结果表明该化合物为白僵菌素。离体试验表明白僵菌素能够导致香蕉假茎腐烂。
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| 关 键 词： | 香蕉枯萎病 白僵菌素 结构 毒性 |
| 收稿时间： | 2011-5-23 |
| 修稿时间： | 2011-10-20 |
Identification of Beauvericin,a Novel Mycotoxin from Fusarium oxysporum f. sp. cubense |
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| LI Chun-yu,CHEN Shi,ZUO Cun-wu,KUANG Rui-bin, YI Gan-jun.Identification of Beauvericin,a Novel Mycotoxin from Fusarium oxysporum f. sp. cubense[J].Acta Horticulturae Sinica,2011,38(11):2092-2098. |
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| Authors: | LI Chun-yu CHEN Shi ZUO Cun-wu KUANG Rui-bin YI Gan-jun |
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| Institution: | LI Chun-yu1,CHEN Shi2,ZUO Cun-wu1,KUANG Rui-bin1,and YI Gan-jun1,(1Institution of Fruit Tree Research,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China,2Fujian-Taiwan Horticulture Research Center,Fujian Academy of Agricultural Sciences,Zhangzhou,Fujian 363005,China) |
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| Abstract: | The 28 isolates of Fusarium oxysporum f. sp. cubense(Foc)including Race 1 and 4 were collected from the banana Fusarium wilt diseases epidemic areas of Guangdong,Hainan,Guangxi,Fujian and Yunnan provinces. The secondary metabolites were analyzed by HPLC-ESI-MS. We found fusaric acid which the molecular weight is 179 Dalton and another compound with a molecular weight of 783 Dalton. The latter was purified and identified to be beauvericin by 1H-NMR. Experiments in vitro proved that the banana pseudostem rot ... |
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| Keywords: | Fusarium wilt of banana beauvericin structure toxicity |
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