| 大麦云纹斑病菌中抗多菌灵乙霉威株系及其抗药性对致病性作用的分子分析 |
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| 引用本文： | 刘波 Holl.,DW. 大麦云纹斑病菌中抗多菌灵乙霉威株系及其抗药性对致病性作用的分子分析[J]. 植物病理学报, 1996, 26(3): 211-215 |
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| 作者姓名： | 刘波 Holl. DW |
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| 作者单位： | 1. 莱阳农学院, 莱阳 265200;2. 英国布里斯托尔大学农业科学系, 郎阿希顿, 布里斯托尔, BS189 AF, 英国 |
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| 摘 要： | 田间抗性监测发现了大麦云纹斑病菌新型的抗性菌株,这类菌株对苯并咪唑类(多菌灵)、Phenylcarbamate(乙霉威)及三唑类(三唑醇)表现多重抗性,先前发现的多菌灵抗药性菌株均是在β-维管蛋白基因的198位点出现等位基因的突变,而新发现的菌株则仅在200位点(TTC)由苯并氨酸转变成赖氨酸(TAC)而导致对3种药剂的抗性。温室试验证明,这类菌株的致病性和野生敏感菌的致病性几乎一致,说明大麦云纹斑病菌对杀菌剂抗药性的发展与致病性之间没有相关性。
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| 关 键 词： | 杀菌剂抗药性 β-维管蛋白基因 苯并咪唑类 致病性 大麦云纹斑病菌 |
MOLECULAR ANALYSIS OF BENZIMIDAZOLE AND PHENYLCARBAMATE RESISTANCE IN RHYNCHOSPORIUM SECALIS AND THE AFFECT OF RESISTANCE ON PATHOGENICITY |
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| Liu Bo,Miao Rong,D. W. Hollomon,I. Wheeler. MOLECULAR ANALYSIS OF BENZIMIDAZOLE AND PHENYLCARBAMATE RESISTANCE IN RHYNCHOSPORIUM SECALIS AND THE AFFECT OF RESISTANCE ON PATHOGENICITY[J]. Acta Phytopathologica Sinica, 1996, 26(3): 211-215 |
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| Authors: | Liu Bo Miao Rong D. W. Hollomon I. Wheeler |
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| Affiliation: | 1. Laiyang Agricultural College, Laiyang 265200, China;2. Department of Agricultural Sciences, University of Bristol, Long Ashton Bristol, BS18 9AF, UK |
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| Abstract: | A novel fungicide resistant phenotype of Rhynchosporium secalis was isolated from the field. It was resistant to benzimidazole (M BC), phenylcarbamate (NPC) and azol (triadim enol) fungicide, unlike other MBC resistant strains, it did not carry an allelic mutation at amino acid code 198 of the target β-tubulin gene, instead a singal base change alterred phenlalanine at codon 200 (TTC) to tyrosine (TAC) and conferred resistance. |
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| Keywords: | Fungicide resistance β-tubulin Benzimidazole Pathogenicity Rhynchosporium secalis |
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