| 杨桃细菌性褐斑病研究初报 |
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| 引用本文： | 文衍堂,黄智辉.杨桃细菌性褐斑病研究初报[J].热带作物学报,1995,16(1):65-69. |
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| 作者姓名： | 文衍堂 黄智辉 |
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| 作者单位： | 华南热带作物学院植保系 |
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| 摘 要： | 杨桃（Ａｖｅｒｒｈｏａ ｃａｒａｍｂｏｌａ Ｌ．）细菌性褐斑病发病初，小叶出现水渍状小斑点，斑点疹状隆起，随后斑点稍扩大，中央灰白色，边缘不规则，隆起，深褐色，外围有黄色晕圈，数个斑点可汇成斑块，严重时小叶变黄，脱落。通过对病原菌的细菌学性状、致病性、寄主范围以及血清学反应测定，证实杨榉细菌性褐斑病是新病害，病原菌被鉴定为丁香假单胞菌杨桃致病型（Ｐｓｅｕｄｏｍｏｎａｓ ｓｙｒｉｎｇａｅ ＰＶ． ａ
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| 关 键 词： | 杨桃 细菌性褐斑病 病原 鉴定 |
BACTERIAL LEAF SPOT OF AVEKRHOA CARAMBOLA |
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| Wen Yantang, Huang Zhihui.BACTERIAL LEAF SPOT OF AVEKRHOA CARAMBOLA[J].Chinese Journal of Tropical Crops,1995,16(1):65-69. |
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| Authors: | Wen Yantang Huang Zhihui |
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| Abstract: | A bacterial Hotch disease of carambola(Averrhoa carambola L.)has been observedsince l992 in both Guangdong and Hainan provinces. Small raised water-soaked spots on theleaflets were seen at the initial stage of the incidence and then enlarged slightly. The spots,usually surrounded by yellow halos,were greyish in the centre and irregular, slightly raisedand dark brown to purplish-brown on the edge. The spots coalesced and the leaflets turnedyellow and shed off in the serious case,The tests of bacteriological characteristics,pathogenicity and serological reaction disclosed that the bacterial blotch of carambola was anovelpathovar was named proposedly pseudomonas syringae pv. averrhoi nov. and the iso-late Acl was conserved as pathotype strain. |
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| Keywords: | Averrhoa carambola bacterial blotch pathogenic identification |
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