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Bacterial communities in Antarctic lichens

Cited 3 time in wos
Cited 4 time in scopus
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Bacterial communities in Antarctic lichens
Park, Chae Haeng
Kim, Kyung Mo
Kim, Ok-Sun
Jeong, Gajin
Hong, Soon Gyu
Environmental Sciences & Ecology; Physical Geography; Geology
Cladonia; Lichen associated bacteria; Umbilicaria; Usnea
Issue Date
Park, Chae Haeng, et al. 2015. "Bacterial communities in Antarctic lichens". Antarctic Science, 28(6): 455-461.
To date, many studies surveying the bacterial communities in lichen thalli from diverse geographical areas have shown that Alphaproteobacteria is the predominant bacterial class in most lichens. In this study, bacterial communities in several Antarctic lichens with different growth form and substrates were analysed. The bacterial community composition in fruticose and foliose lichens, Cladonia, Umbilicaria and Usnea, and crustose lichens, Buelia granulosa, Amandinea coniops and Ochrolechia parella, from King George Island was analysed by pyrosequencing of bacterial 16S rRNA genes. Results showed that Proteobacteria, Acidobacteria, Actinobacteria and Bacteroidetes were predominant phyla. The predominant bacterial class in most of the samples was Alphaproteobacteria. Acetobacteriaceae of the order Rhodospiralles in Alphaproteobacteria was the most abundant bacterial family in Antarctic lichens. The LAR1 lineage of the order Rhizobiales, a putative N-fixer which has been frequently observed in lichens from temperate areas, was detected only from a few samples at low frequency. It is expected that other bacterial taxa are working as N-fixers in Antarctic lichens. From the PCoA analysis of the Fast UniFrac distance matrix, it was proposed that the microbial community structures in Antarctic lichens were affected by host species, growth form and substrates.
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