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以蒙自地区枇杷为试材,采用组织分离法和常规形态学鉴定法,对其内生真菌的种类组成、分布及数量变化进行了初步研究。结果表明:从枇杷1a生及多年生健康组织、1a生根腐病组织和叶斑病病叶组织中共分离获得144株内生真菌,共鉴定出16个属,分别为Acremonium、Alternaria、Aspergillus、Arthrinium、Cladosporium、Epicoccum、Fusiarium、Humicola、Monilia、Mucor、Nigrospora、Oidium、Penicillium、Phomopsis、Pythium和Sebacina;其中,Acremonium、Alternaria和Phomopsis 3个属为优势属。枇杷内生真菌在植株内的分布随器官、树龄、品种、病健组织不同而存在差异,具有丰富的多样性。
Taking the loquat in Mengzi area as test material, the species composition, distribution and quantitative changes of endophytic fungi were studied by tissue separation method and conventional morphological identification method. The results showed that 144 endophytic fungi were isolated from the root tissue of 1a and perennial, 1a root rot and leaf spot diseased loquat, and 16 genera were identified, which were Acremonium, Alternaria, Aspergillus, Arthrinium, Cladosporium, Epicoccum, Fusarium, Humicola, Monilia, Mucor, Nigrospora, Oidium, Penicillium, Phomopsis, Pythium and Sebacina. Among them, Acremonium, Alternaria and Phomopsis were the dominant genera. The distribution of endophytic fungi in loquat varies with organs, tree ages, varieties and diseased tissues, and is rich in diversity.