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Microbial Community Structure, Pigment Composition, and Nitrogen Source of Red Snow in Antarctica

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タイトル: Microbial Community Structure, Pigment Composition, and Nitrogen Source of Red Snow in Antarctica
著者: Fujii, Masanori 著作を一覧する
Takano, Yoshinori 著作を一覧する
Kojima, Hisaya 著作を一覧する
Hoshino, Tamotsu 著作を一覧する
Tanaka, Ryouichi 著作を一覧する
Fukui, Manabu 著作を一覧する
発行日: 2010年 4月
出版者: Springer New York
誌名: Microbial Ecology
巻: 59
号: 3
開始ページ: 466
終了ページ: 475
出版社 DOI: 10.1007/s00248-009-9594-9
抄録: "Red snow" refers to red-colored snow, caused by bloom of cold-adapted phototrophs, so-called snow algae. The red snow found in Langhovde, Antarctica, was investigated from several viewpoints. Various sizes of rounded red cells were observed in the red snow samples under microscopy. Pigment analysis demonstrated accumulation of astaxanthin in the red snow. Community structure of microorganisms was analyzed by culture independent methods. In the analyses of small subunit rRNA genes, several species of green algae, fungus, and various phylotypes of bacteria were detected. The detected bacteria were closely related to psychrophilic or psychrotolerant heterotrophic strains, or sequences detected from low temperature environments. As predominant lineage of bacteria, members of the genus Hymenobacter were consistently detected from samples obtained in two different years. Nitrogen isotopic compositions analysis indicated that the red snow was significantly 15N-enriched. Based on an estimation of trophic level, it was suggested that primary nitrogen sources of the red snow were supplied from fecal pellet of seabirds including a marine top predator of Antarctica.
Rights: The original publication is available at
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 小島 久弥


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