| Effects of MEK-Specific Inhibitor U0126 on the Conidial Germination, Appressorium Production, and Pathogenicity of Setosphaeria turcica |
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| 作者姓名： | FAN Yong-shan GU Shou-qin DONG Jin-gao DONG Bing-fang |
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| 作者单位： | [1]Mycotoxin Laboratory, Agricultural University of Hebei, Baoding 071001, P.R.China [2]Department of Biological Science and Technology, Tangshan Teachers College, Tangshan 063000, PR.China |
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| 基金项目： | 国家自然科学基金;河北省博士科研项目 |
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| 摘 要： | Systemic studies on the effects of mitogen-activated protein kinase （MAPK） signal transduction pathway on the growth and development of Setosphaeria turcica is helpful not only in understanding the molecular mechanism of pathogenhost interaction but also in the effective control of the diseases caused by S. turcica. U0126, the specific MEK inhibitor, is used to treat S. turcica before the observation of the conidial germination, appressorium production, and pathogenicity of the pathogen. There is no significant effect of U0126 on the colony morphology and mycelium growth of the pathogen. After treatment with U0126, the growth of mycelium and conidia are normal, but the conidial germination, appressorium production, and pathogenicity of S. turcica on susceptible corn leaves are significantly inhibited. Under the definite concentration scope, an increase in U0126 concentration increases the inhibition degree of conidial germination and appressorium production, but the inhibition degree decreases with elongation of treatment time. The conidial germination, appressorium production, and pathogenicity of S. turcica on susceptible corn leaves are regulated by the MAPK pathway inhibited by U0126.
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| 关 键 词： | 土耳其螺属 致病性 促细胞分裂活性蛋白激酶 信号转导 无性孢子萌发 |
Effects of MEK-Specific Inhibitor U0126 on the Conidial Germination, Appressorium Production, and Pathogenicity of Setosphaeria turcica |
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| FAN Yong-shan GU Shou-qin DONG Jin-gao DONG Bing-fang.Effects of MEK-Specific Inhibitor U0126 on the Conidial Germination, Appressorium Production, and Pathogenicity of Setosphaeria turcica[J].Agricultural Sciences in China,2007,6(1):78-85. |
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| Authors: | FAN Yong-shan GU Shou-qin DONG Jin-gao DONG Bing-fang |
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| Institution: | 1. Mycotoxin Laboratory, Agricultural University of Hebei, Baoding 071001, P.R. China;Department of Biological Science and Technology, Tangshan Teachers College, Tangshan 063000, P.R. China
2. Mycotoxin Laboratory, Agricultural University of Hebei, Baoding 071001, P.R. China |
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| Abstract: | Systemic studies on the effects of mitogen-activated protein kinase (MAPK) signal transduction pathway on the growth and development of Setosphaeria turcica is helpful not only in understanding the molecular mechanism of pathogenhost interaction but also in the effective control of the diseases caused by S. turcica. U0126, the specific MEK inhibitor, is used to treat S. turcica before the observation of the conidial germination, appressorium production, and pathogenicity of the pathogen. There is no significant effect of U0126 on the colony morphology and mycelium growth of the pathogen. After treatment with U0126, the growth of mycelium and conidia are normal, but the conidial germination, appressorium production, and pathogenicity of S. turcica on susceptible corn leaves are significantly inhibited. Under the definite concentration scope, an increase in U0126 concentration increases the inhibition degree of conidial germination and appressorium production, but the inhibition degree decreases with elongation of treatment time. The conidial germination, appressorium production, and pathogenicity of S. turcica on susceptible corn leaves are regulated by the MAPK pathway inhibited by U0126. |
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| Keywords: | Setosphaeria turcica MAPK U0126 conidial germination appressorium production pathogenicity |
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