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Asterochloris sejongensis sp. nov. (Trebouxiophyceae, Chlorophyta) from King George Island, Antarctica

Cited 1 time in scopus
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Title
Asterochloris sejongensis sp. nov. (Trebouxiophyceae, Chlorophyta) from King George Island, Antarctica
Other Titles
킹조지섬에수 분리된 신종 미세조류 Asterochloris sejongensis
Authors
Kim, Jong Im
Shin, Woongghi
Choi, Han-Gu
Hong, Soon Gyu
So, Jae Eun
Nam, Seung Won
Subject
Plant Sciences
Keywords
Antarctica; Asterochloris; phycobiont; phylogeny; ultrastructure
Issue Date
2017
Citation
Kim, Jong Im, et al. 2017. "Asterochloris sejongensis sp. nov. (Trebouxiophyceae, Chlorophyta) from King George Island, Antarctica". PHYTOTAXA, 295(1): 60-70.
Abstract
The new species Asterochloris sejongensis sp. nov. has been collected from four localities of King George Island, Antarctica, and is described as a phycobiont of the lichen species Cladonia pyxidata and Sphaerophorus globosus. This discovery is based on morphological and molecular data obtained using light microscopy, confocal laser microscopy, transmission electron microscopy, and two molecular markers;nuclear internal transcribed spacer (ITS) rDNA and actin genes. This species is characterized by five unique hemi-CBCs in the nuclear ITS transcripts, deeply lobed and echinulate chloroplasts (depending on the life stage), and two rows of pyrenoglobuli associated with two thylakoid envelopes. A molecular phylogenetic analysis of the ITS and actin gene sequences indicated that this new species is closely related to A. woessiae and forms a distinct well-supported lineage with the genus.
URI
http://repository.kopri.re.kr/handle/201206/5850
DOI
http://dx.doi.org/10.11646/phytotaxa.295.1.5
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