摘要
[目的]明确甘肃武威地区林木枝干病害种类.[方法]本研究采用踏查法对武威市主要树种的病害进行调查,并对发病部位进行子实体分离、形态学鉴定,采用多基因序列的系统发育分析方法对引起主要病害种类的病原真菌进行鉴定.[结果]调查涉及林木树种共计40属58种,其中出现病害的树种有11属16种,其病害种类分为22种,其中杨树(Populus spp.)及国槐(Styphnolobium japonicum)腐烂病发生最为严重.经分子生物学鉴定主要病原真菌7种,主要类群为非洲小单孢腔菌Aplosporella africana、臭椿壳囊孢Cytospora ailanthicola、卫矛壳囊孢Cytospora euonymin和拟国槐壳囊孢Cytospora sophoriopsis.此外,记录了林木病原真菌的非洲小单孢腔菌Aplosporella Africana 1个中国新记录和17个新寄主记录.[结论]武威市林木中,杨树及国槐腐烂病发生最为严重.
Abstract
[Objective]The objective of this study was to elucidate the types of branch and stem dis-eases in forest trees in Wuwei of Gansu Province.[Method]Typical symptoms were utilized to investigate the major diseases,and the pathogenic fungi responsible for these diseases were identified through entity iso-lation,morphological characterization of disease site substrates,and phylogenetic analysis of multi-gene se-quences.[Result]The survey encompassed 40 genera and 58 plant species,with 11 genera and 16 species exhibiting signs of disease.A total of 22 disease types were identified,with poplar(Populus spp.)and aca-cia(Styphnolobium japonicum)rot disease being the most severe.Seven primary pathogenic fungi were identified by using molecular biology techniques,including Aplosporella africana,Cytospora ailanthicola,Cytospora euonymin,and Cytospora sophoriopsis.Additionally,one new Chinese record and 17 new host re-cords of a forest pathogenic fungus,i.e.,Aplosporella africana,were recorded.[Conclusion]In Wuwei,poplar(Populus spp.)and acacia(Styphnolobium japonicum)exhibited the most severe rot diseases.
基金项目
武威市国家杨树樟子松良种基地良种补贴项目()
2023年中央财政林业科技推广示范项目(2023ZYTG011)
2022年甘肃省林业和草原科技项目(2022kj015)
2022年武威市科技重点研发项目(WW2201YFN009)
维普
万方数据