| 三唑酮、三唑醇对小麦纹枯病菌形态和生理的影响 |
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| 引用本文： | 史建荣,王裕中.三唑酮、三唑醇对小麦纹枯病菌形态和生理的影响[J].植物病理学报,1992,22(3):205-209. |
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| 作者姓名： | 史建荣 王裕中 |
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| 作者单位： | 1. 江苏省农业科学院植保所;2. 南京农业大学 |
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| 摘 要： | 小麦纹枯病菌(Rhizoctonia cerealis)在加入三唑酮(Triadimefon)或三唑醇(Triadimenol)的培养液中生长时,菌丝形态和生理发生明显的改变。菌丝畸形,表现为细胞肿大,细胞分隔处菌丝缢缩;药剂处理后,等量菌丝的麦角甾醇含量下降,1、5μg/ml的三唑酮和三唑醇处理,麦角甾醇含量比对照减少45.155.9%和27.5、48.9%;菌丝在药剂处理后,电解质渗漏增加,5μg/ml药剂处理一小时后,三唑酮组的菌丝之细胞电解质渗漏达2.58%,三唑醇组的渗漏为2.19%,空白对照组仅为0.65%。本研究结果表明,三唑酮、三唑醇对小麦纹枯病菌具有直接的伤害作用。
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| 关 键 词： | 小麦 纹枯病菌 三唑酮 三唑醇 |
THE EFFECT OF TRIADIMEFON AND TRIADIMENOL ON THE MORPHOLOGY AND PHYSIOLOGY OF RHIZOCTONIA CEREALIS VANDER HOVEN |
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| Shi Jianrong,Wang Yuzhong,Fang Chongtah.THE EFFECT OF TRIADIMEFON AND TRIADIMENOL ON THE MORPHOLOGY AND PHYSIOLOGY OF RHIZOCTONIA CEREALIS VANDER HOVEN[J].Acta Phytopathologica Sinica,1992,22(3):205-209. |
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| Authors: | Shi Jianrong Wang Yuzhong Fang Chongtah |
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| Institution: | 1. Institute of Plant Protection, Jiangsu Academy of Agricultural Scienses;2. Nanjing Agricultural University |
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| Abstract: | The fungicides triadimefon and triadimenol markedly reduced growth of the mycelium of Rhizoctonia cerealis,changed its morphology and physiology.After the mycelium of R.cerealis was treated with triazoles,its cell was inflated and shortened,and the formation of the septum was constricted,demonstrating the mycelial deformity.Ergosterol yields of mycelia incubated in the solution of triadimef on or triadimenol at 1,5 μg/ml reduced 45.1,55.9%(triadimefon) and 27.5,48.9%(triadimenol) respectively,compared to that of mycelia incubated in the free-fungicide solution.Electrolyte leakage from triazole-treated mycelia of R.cerealis was monitored for 180 minutes.At concentration of 5μg/ml of triadimefon or triadimenol,conbuctivity increased two to three fold over that of the nontreated mycelium which did not leak siginificant amounts of electrolytes,after 60 minutes of treatment.This result suggests that the direct action on fungal cell membranes of R.cerealisbe one of the mechanisms of action for triadimefon and triadimenol. |
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