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| 哈茨木霉T_2菌株耐药性的测定及其对几种病原菌的抑制作用研究 | |
| 引用本文： | 程东美,张志祥,区丽文,黄炽坤,刘任.哈茨木霉T_2菌株耐药性的测定及其对几种病原菌的抑制作用研究[J].安徽农业科学,2008,36(10):4170-4173. |
| 作者姓名： | 程东美 张志祥 区丽文 黄炽坤 刘任 |
| 作者单位： | 1. 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;仲恺农业技术学院植保系,广东广州,510225 2. 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 3. 仲恺农业技术学院植保系,广东广州,510225 |
| 基金项目： | 天然农药与化学生物学教育部重点实验室项目 , 仲恺农业技术学院校科研和教改项目 |
| 摘 要： | 目的]为提高木霉菌的生物防治效果。方法]研究了哈茨木霉T2菌株对3种病原真菌(齐整小核菌、立枯丝核菌和香蕉枯萎病菌)的抑制作用,分析其对7种杀菌剂的耐药性,并探讨了哈茨木霉T2菌株与杀菌剂联用对立枯丝核菌和齐整小核菌的抑制作用。结果]哈茨木霉T2菌株对病原真菌的抑制随处理时间的延长而增强。处理后120 h其对齐整小核菌、立枯丝核菌、香蕉枯萎病菌的抑制率最高,分别为63.10%、65.64%和33.84%。哈茨木霉T2菌株对多菌灵的耐药性最强,EC50为4 345.32 mg/L。在浓度为800 mg/L时多菌灵对哈茨木霉T2菌株的抑制率为13.73%,当浓度在50 mg/L以下时抑菌率几乎为0。哈茨木霉T2菌株对代森锰锌、露星较敏感。结论]哈茨木霉T2菌株与甲霜灵联用,能明显抑制齐整小核菌、立枯丝核菌的生长。 |
| 关 键 词： | 哈茨木霉T2 杀菌剂 耐药性 抑制作用 |
| 文章编号： | 0517-6611(2008)10-04170-03 |
| 修稿时间： | 2007年12月8日 |
Study on the Drug-resistance Determination of Trichoderma harzianum T2 Strata and Its Inhibitory Effects on Several Kinds of Pathogenic Bacteria |
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| CHENG Dong-mei.Study on the Drug-resistance Determination of Trichoderma harzianum T2 Strata and Its Inhibitory Effects on Several Kinds of Pathogenic Bacteria[J].Journal of Anhui Agricultural Sciences,2008,36(10):4170-4173. | |
| Authors: | CHENG Dong-mei |
| Abstract: | Objective] The aim of the research was to enhance the biocontrol effect of Trichoderma.Method] The inhibitory effects of Trichoderma harzianum T2 strain on 3 kinds of pathogenic fungi(Sclerotium rolfsii,Rhizoctonia solani and Fusarium oxysporum f.cubense) were studied and its drug-resistance to 7 kinds of fungicides were analyzed.And the inhibitory effects of applying T.harzianum T2 strain with fungicide on R.solani and S.rolfsii were discussed.Result] The inhibition of T.harzianum T2 strain was strengthened with the prolonging of the treatment time.Its inhibitory rates to S.rolfsii,R.solani and F.oxysporum were highest on the 120th h after treatment,being 63.10%,65.64% and 33.84% resp.The drug-resistance of T.harzianum T2 to carbendazim was strongest with EC50 of 4 345.32 mg/L.The inhibitory rate of carbendazim at 800 mg/L to T.harzianum T2 strain was 13.73%.When the concn.was below 50 mg/L,its inhibitory rate was near to zero.T.harzianum T2 strain was more sensitive to mancozeb and Louxing.Conclusion] Applying T.harzianum T2 strain with metalaxyl could inhibit the growth of S.rolfsii and R.solani obviously. |
| Keywords: | Trichoderma harzianum T2 Fungicides Drug-resistance Inhibitory effects |
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