In order to understand the predominant species dynamic and diversity of fungal endophytes in barks of Populus×euramericana cv. Robusta 94 and triploid of P. tomentosa,the fungal endophytes were ...isolated from barks of P.×euramericana cv. Robusta 94 and triploid of P. tomentosa by tissue isolation, and identified based on sequence analysis of the internal transcribed spacer and morphological characterization by microscopic observations. A total of 1 175 fungal endophytes were isolated from 996 bark tissues. The fungal endophytes were classified into 35 fungal taxa belonging to 15 genera, including 1 species of Basidiomycota and 34 taxa of Ascomycota. And Alternaria alternata, Botryosphaeria dothidea, Fusarium spp., and Diaporthe conorum were the predominant species of fungal endophytes in barks of P.×euramericana cv. Robusta 94 and triploid of P. tomentosa, while A. alternata and B. dothidea were the most common predominant species in the barks of the two cultivars. The variation of predominant fungal endophyte
To explore species changes of dominant population of fungi and bacteria from healthy and canker disease-infected Populus× euroamericana, the cultivable bacteria and fungi from healthy and diseased ...poplar bark in Puyang city were isolated. The results show that the dominant species of fungi from healthy and diseased poplar bark are Alternaria alternata and Fusarium solani respectively, and the strains number of F. solani from diseased poplar bark are more than 85% of all the fungal isolates. And the bacterial dominant species of diseased poplar plants bark is Lonsdalea quercina, and the strains number of which are more than 67% of the all bacterial isolates, while the preponderant species of three healthy poplar bark samples are different. F. solani and L. quercina became the preponderant species in cankers of Populus×euroamericana. 为探讨感染欧美杨新型溃疡病的中林46杨植株干部病斑中真、细菌优势种类,本研究对河南省濮阳市中林46杨健株、病株染病组织的可培养真菌、细菌优势种群进行了分析。结果表明:健康树皮样品分离真菌优势种群均为Alternaria alternata,染病株样品优势种群均为Fusarium solani,而且其菌株数量占所分离菌株总数的百分比均在85%以上;而在健康株3
