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首页> 外文期刊>Aerobiologia >Characterization of fungi transferred by dust storms in Kuwait and their plant pathogenicity
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Characterization of fungi transferred by dust storms in Kuwait and their plant pathogenicity

机译：科威特沙尘暴转移真菌的特征及其致病性

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摘要

Dust storms carry large amounts of plant detritus and microorganisms that may cause diseases in humans, animals or plants. These storms are frequent in Kuwait throughout the year. This research was conducted to identify the fungal species carried by the dust storms in Kuwait, originating from the northwesterly direction, with emphasis on plant pathogens. Fungi were isolated from settled dust samples and identified using established microbiological and molecular approaches. Fungal isolates identified as Fusarium oxysporum from settled dust were examined for pathogenicity using a number of crop plants. In total, 17 genera of fungi were identified in the dust samples. These fungi included plant pathogens or facultative plant parasites that were transported in the dust storms as viable propagules. The most common dust-carried fungi belonged to the genera Fusarium, Alternaria, Ulocladium, Phoma, Aspergillus, Acremonium and Penicillium. The F. oxysporum isolates that had been characterized by partial 18S rRNA gene sequencing were pathogenic, causing root and stem rot in tomato, bean and cucumber, but not squash.
机译：沙尘暴携带大量植物残渣和微生物，可能导致人类，动物或植物疾病。这些风暴在科威特全年都很频繁。进行这项研究以鉴定科威特沙尘暴携带的真菌物种，其起源于西北方向，重点是植物病原体。从沉降的灰尘样品中分离出真菌，并使用确定的微生物学和分子方法进行鉴定。使用多种农作物检查了从定居粉尘中鉴定为尖孢镰刀菌的真菌分离株的致病性。灰尘样品中总共鉴定出17种真菌。这些真菌包括植物病原体或兼性植物寄生虫，它们在沙尘暴中作为可行的繁殖体运输。最常见的粉尘携带真菌属于镰刀菌，链格孢属，Ulocladium，Phoma，曲霉，顶头孢霉和青霉属。以部分18S rRNA基因测序为特征的尖孢镰刀菌菌株具有致病性，可引起番茄，大豆和黄瓜的根腐病，但不会引起南瓜腐烂。

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