| 玉米大斑病菌孢子萌发和附着胞形成的影响因素研究 |
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| 引用本文： | 宋文静,董金皋.玉米大斑病菌孢子萌发和附着胞形成的影响因素研究[J].植物病理学报,2008,38(5):536-539. |
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| 作者姓名： | 宋文静 董金皋 |
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| 作者单位： | 河北农业大学生命科学学院植物分子病理学实验室, 保定 071001 |
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| 摘 要： | Factors of influence on conidium germination and appressorium formation of Setosphaeria turcica,such as light condition,conidial concentration,nutrient resources and pH value of conidial suspension were studied.There was no significant difference among light treatments.The optimal pH for conidium germination and appressorium formation was 5.0 to 7.0.The exogenous nutrient sources were not the indispensable factors for conidium germination,but 5% sugar solution were more favorable for appressorium formation than the others.Low conidial concentration in suspension (conidia ≤ 104/mL) was propitious to conidium germination and appressorium formation,which were inhibited significantly in higher concentration.It was suggested that the phenomenon was due to the self-inhibitor,a kind of lipophilic substance,existing in the site of conidium germination.
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| 关 键 词： | 玉米大斑病菌 附着胞形成 影响因素 孢子萌发 寄主植物 叶枯性病害 玉米生产 叶肉细胞 |
Factors of influence on conidium germination and appressorium formation of Setosphaeria turcica |
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| SONG Wen-jing,DONG Jin-gao.Factors of influence on conidium germination and appressorium formation of Setosphaeria turcica[J].Acta Phytopathologica Sinica,2008,38(5):536-539. |
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| Authors: | SONG Wen-jing DONG Jin-gao |
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| Institution: | Molecular Plant Pathology Lab., College of Life Sciences, Agricultural University of Hebei, Baoding 071001, China |
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| Abstract: | Factors of influence on conidium germination and appressorium formation of Setosphaeria turcica,such as light condition,conidial concentration,nutrient resources and pH value of conidial suspension were studied.There was no significant difference among light treatments.The optimal pH for conidium germination and appressorium formation was 5.0 to 7.0.The exogenous nutrient sources were not the indispensable factors for conidium germination,but 5% sugar solution were more favorable for appressorium formation than the others.Low conidial concentration in suspension (conidia ≤ 104/mL) was propitious to conidium germination and appressorium formation,which were inhibited significantly in higher concentration.It was suggested that the phenomenon was due to the self-inhibitor,a kind of lipophilic substance,existing in the site of conidium germination. |
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| Keywords: | Setosphaeria turcica conidium germination appressorium formation |
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