NDLI: Geographical and Temporal Changes of Foliar Fungal Endophytes Associated with the Invasive Plant Ageratina adenophora

Content Provider	Springer Nature Link
Author	Mei, Liang Zhu, Ming Zhang, De Zhu Wang, Yong Zhou Guo, Jing Zhang, Han Bo
Copyright Year	2013
Abstract	Endophytes may gradually accumulate in the new geographic range of a non-native plant, just as pathogens do. To test this hypothesis, the dynamics of colonization and diversity of foliar fungal endophytes of non-native Ageratina adenophora were investigated. Previous reports showed that the time since the initial introduction (1930s) of A. adenophora into China varied among populations. Endophytes were sampled in three provinces of Southwest China in 21 sites that varied from 20 to 70 years since the introduction of A. adenophora from its native Central America. Endophyte isolation frequencies varied from 1.87 % to 60.23 % overall in a total of 4,032 leaf fragments. Based on ITS sequence variations, 463 fungal endophytes were distinguished as 112 operational taxonomic units (OTUs) belonging to the Sordariomycetes (77 OTUs, 373 isolates), Dothideomycetes (18 OTUs, 38 isolates), and Agaricomycetes (17 OTUs, 52 strains) classes. Colletotrichum (28.51 %), Nemania (14.90 %), Phomopsis (13.17 %), and Xylaria (4.97 %) were the most abundant genera. Both endophyte diversity and overall isolation frequency increased with time since introduction. The genetic differentiation of the fungus Colletotrichum gloeosporioides indicated that the dispersal of endophytes was likely affected by a combination of geographic factors and the invasion history of the host A. adenophora.
Starting Page	402
Ending Page	409
Page Count	8
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	67
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2013-11-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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