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首页> 外文期刊>International Journal of Plant & Soil Science >Occurrence of Anthracnose Disease of Turkey Berry (Solanum torvum) at Bunso, Eastern Region, Ghana
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Occurrence of Anthracnose Disease of Turkey Berry (Solanum torvum) at Bunso, Eastern Region, Ghana

机译：加纳东部地区邦索的土耳其浆果炭疽病的发生

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Aims: To identify the causal agent of anthracnose disease of Solanum torvum , determine whether the pathogen is seedborne and also to ascertain the cross infection potential of the pathogen on other Solanaceous crops of economic importance. Place and Duration of Study: Bunso, in the East Akim District of the Eastern Region of Ghana, between January and October, 2017. Methodology: The disease symptoms on matured fruits, leaves, stems and flowers of Solanum torvum were carefully observed for documentation with magnifying glasses and the naked eyes. The pathogen was isolated on PDA after incubation for five days and the identification was based on the colony, morphology and conidial characteristics with reference to laboratory manuals. The virulence of the fungal isolates from the S. torvum fruits was determined through pathogenicity tests. A seed health test was conducted in accordance with the International Seed Testing Association (ISTA) to determine whether the pathogen is seedborne. Conidial suspension of Colletotrichum acutatum (1×10sup3 /supper ml) was used to inoculate pepper and eggplant fruits in a cross infectivity test. Results: Colletotrichum acutatum was repeatedly isolated and identified as the causal agent of the disease on the fruits and was also seedborne. In cross infectivity studies, the pathogen produced characteristic anthracnose symptoms on both eggplant and pepper which happens to belong to the same Solanaceae family just as the turkey berry . Conclusion: The anthracnose disease of Solanum torvum at Bunso, in the Eastern Region of Ghana is caused by Colletotrichum acutatum that has the potential to cross infect other Solanaceous species. This study is the first scientific report of the occurrence of anthracnose disease of S. torvum in Ghana.
机译：目的：确定茄果炭疽病的病原体，确定病原体是否是种子传播的，并确定该病原体在其他具有经济意义的茄科作物上的交叉感染潜力。研究的地点和持续时间：2017年1月至10月，在加纳东部地区东部Akim区的Bunso。方法：仔细观察茄果的成熟果实，叶子，茎和花上的疾病症状，以作为记录。放大镜和裸眼。孵育五天后在PDA上分离病原体，并根据实验室手册根据菌落，形态和分生孢子特征进行鉴定。通过致病性测试确定了来自苦瓜链球菌果实的真菌分离物的毒力。根据国际种子测试协会（ISTA）进行了种子健康测试，以确定病原体是否是种子传播的。在交叉感染性试验中，使用尖吻菌分生孢子悬浮液（每毫升1×10 3 ）接种辣椒和茄子果实。结果：反复分离分离了尖头炭疽菌并鉴定为该病对果实的病原体，并且也是种子传播的。在交叉感染性研究中，病原体在茄子和辣椒上均产生了特征性炭疽病症状，而这些现象恰恰与土耳其莓一样属于同一茄科。结论：加纳东部地区本索的茄子炭疽病是由切菜炭疽菌引起的，该炭疽菌有可能交叉感染其他茄科物种。这项研究是加纳S. torvum炭疽病发病的第一份科学报告。

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