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Title 

Algal and fungal diversity in antarctic lichens

Authors 

C H ParkKyung Mo KimA ElvebakkO S KimG JeongS G Hong

Publisher 

Wiley

Issue Date 

2015

Citation 

Journal of Eukaryotic Microbiology, vol. 62, no. 2, pp. 196-205

Keywords 

Cladonialichen-associated fungimicroalgaeUmbilicariaUsnea

Abstract 

The composition of lichen ecosystems except mycobiont and photobiont has not been evaluated intensively. In addition, recent studies to identify algal genotypes have raised questions about the specific relationship between mycobiont and photobiont. In the current study, we analyzed algal and fungal community structures in lichen species from King George Island, Antarctica, by pyrosequencing of eukaryotic large subunit (LSU) and algal internal transcribed spacer (ITS) domains of the nuclear rRNA gene. The sequencing results of LSU and ITS regions indicated that each lichen thallus contained diverse algal species. The major algal operational taxonomic unit (OTU) defined at a 99% similarity cutoff of LSU sequences accounted for 78.7-100% of the total algal community in each sample. In several cases, the major OTUs defined by LSU sequences were represented by two closely related OTUs defined by 98% sequence similarity of ITS domain. The results of LSU sequences indicated that lichen-associated fungi belonged to the Arthoniomycetes, Eurotiomycetes, Lecanoromycetes, Leotiomycetes, and Sordariomycetes of the Ascomycota, and Tremellomycetes and Cystobasidiomycetes of the Basidiomycota. The composition of major photobiont species and lichen-associated fungal community were mostly related to the mycobiont species. The contribution of growth forms or substrates on composition of photobiont and lichen-associated fungi was not evident. ? 2014 The Author(s) Journal of Eukaryotic Microbiology

ISSN 

1066-5234

Link 

http://dx.doi.org/10.1111/jeu.12159

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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