| 低钾逆境下根结线虫感染所诱导的番茄根巨型细胞的组织病理学反应 |
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| 引用本文： | 袁林,方文珍,罗大民.低钾逆境下根结线虫感染所诱导的番茄根巨型细胞的组织病理学反应[J].植物病理学报,2008,38(1):100-103. |
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| 作者姓名： | 袁林 方文珍 罗大民 |
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| 作者单位： | 厦门大学生命科学学院 厦门 361005 |
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| 摘 要： | Comparison of histopathological response and quantitative measurement of giant cell(GC) induced by Meloidogyne javanica in tomato root were studied under potassium-deficient(0.2 mmol/L K+) and replete conditions(control,6.0 mmol/L K+).K+-deficient stress did not impede the formation and maintenance of GC.The mean number of GC per feeding site as well as the mean diameter of GC did not differ between the treatments.However,the thickness of cell wall including components resulted from the accumulated polysaccharide and the length of cell-wall ingrowth increased 5-25 d after inoculation in K+-deficient as compared with K+-replete conditions.An increase of cell-wall ingrowth suggested a kind of compensational response to the potassium stress.
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| 关 键 词： | cell-wall ingrowth giant cell histopathological responses macro-nutrient stress Meloidogyne javanica 低钾 线虫感染 茄根 巨型细胞 组织病理学 反应 Nematode Induced Cell Response Stress Potassium Roots increased kind potassium thickness cell wall components accumulated |
Histopathological Response of Giant Cell Induced by Root-knot Nematode, Meloidogyne javanica, in Tomato Roots under Potassium Stress |
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| YUAN Lin,FANG Wen-zhen,Lug Da-min.Histopathological Response of Giant Cell Induced by Root-knot Nematode, Meloidogyne javanica, in Tomato Roots under Potassium Stress[J].Acta Phytopathologica Sinica,2008,38(1):100-103. |
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| Authors: | YUAN Lin FANG Wen-zhen Lug Da-min |
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| Institution: | School of Life Sciences, Xiamen University, Xiamen 361005, China |
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| Abstract: | Comparison of histopathological response and quantitative measurement of giant cell(GC)induced by Meloidogyne javanica in tomato root were studied under potassium-deficient(0.2 mmol/L K+)and replete conditions(control，6.0 mmol/L K+).K+-deficient stress did not impede the formation and maintenance of GC.The mean number of GC per feeding site as well as the meall diameter of GC did not differ between the treatments.However，the thickness of cell wall including components resulted from the accumulated polysaccharide and the length of cell-wall ingrowth increased 5-25 d after inoculation in K+-deficient as compared with K+-replete conditions.An increase of cell-wall ingrowth suggested a kind of compensational response to the potassium stress. |
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| Keywords: | cell-wall ingrowth giant cell histopathological responses macro-nutrient stress Meloidogyne javanica |
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