三种杨树树皮真菌群落的研究  

Studies on Mycota on Bark of Three Species of Populus

作　　者：金静[1] 王远路[2] 刘建平[3] 刘会香[4] 

机构地区：[1]莱阳农学院植物保护系,山东莱阳265200 [2]莱阳农学院图书馆,山东莱阳265200 [3]莱阳农学院园艺系,山东莱阳265200 [4]山东农业大学植物保护学院,山东泰安271008

出　　处：《林业科学研究》2004年第4期490-495,共6页Forest Research

摘　　要：对毛白杨、陕林4号杨、北京杨不同年龄枝条、树体空间层次的真菌种类、数量及季节动态作了分析,结果表明:三种杨树树皮真菌群落组成不同,链格孢属(Alternaria)、曲霉属(Aspergillus)、内脐蠕孢属(Drechslera)、毛壳属(Chaetomium)等为毛白杨上的优势菌种群;链格孢属、曲霉属、木霉属(Tri choderma)、青霉属(Penicillium)等为陕林4号杨的优势菌种群;链格孢属、曲霉属、盾壳霉属(Coniothyri um)、青霉属等为北京杨的优势菌种群。真菌种类及数量在树体空间层次的分布趋势是由上到下逐渐增多;真菌群落季节变化趋势为夏、秋季种类和数量稍高,春、冬季有所减少。The mycota on healthy barks from three species of poplar with different resistant to poplar canker were isolated from March to November,1996 and 123 species belonging to 67 genera were identified.The most common genera on three poplars barks were Aspergillus, Alternaria, Drechslera, Penicillium, Chaetomium, Trichoderma, Coniothyrium, Rhizopus and Mucor.The mycota of three poplars were different in terms of percentage of dominant species.Species composition increased from upper stem to downwards.The diversity and quantity of fungal species on branches increased with the age of the branches; more species and high population were found on the outer bark; the tendency of seasonal dynamic variation of fungal quantity was higher in summer and autumn, lower in spring and winter.Alternaria, Aspergillus, Drechslera and Chaetomium were the dominant genera on Populus tomentosa; Alternaria, Aspergillus, Trichoderma and Penicillium were the dominant genera on Populus deltoides cv.'Lux'×P.cathayana 1062; Alternaria, Aspergillus, Coniothyrium and Penicillium were the dominant genera on Populus×beijingensis.

关 键 词：杨树 树皮 真菌群落 

分 类 号：S718.81[农业科学—林学] S792.11