嗜硫珠菌屬
外觀
硫髮菌屬![]() | |
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納米比亞嗜硫珠菌的染色顯微照片 | |
科學分類 ![]() | |
域: | 細菌域 Bacteria |
界: | 細菌界 Bacteria |
門: | 假單胞菌門 Pseudomonadota |
綱: | γ-變形菌綱 Gammaproteobacteria |
目: | 硫髮菌目 Thiotrichales |
科: | 硫髮菌科 Thiotrichaceae |
屬: | 硫髮菌屬 Thiomargarita Schulz et al. 1999[1][2] |
Species | |
嗜硫珠菌屬(英語:"Thiomargarita")是硫發菌科的一個屬,包括液泡硫細菌——納米比亞嗜硫珠菌 、Candidatus Thiomargarita nelsonii和Ca. Thiomargarita joergensii。[4] 2022年,科學家在加勒比海紅樹林發現了該屬的一種極其巨大的細菌,命名為華麗硫珠菌 ,其細胞肉眼可見,可達2 cm。[5]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/ThiomargaritaFeeding.jpg/220px-ThiomargaritaFeeding.jpg)
該屬可在富含硫化氫的環境,諸如冷泉、泥火山、鹽水池和富含有機物的沉積物、以及在本格拉洋流和秘魯涼流下發現的沉積物中找到。 這些細菌通常歸類為化能營養生物,它們生存的海水環境,含有週期性上升洋流帶來的大量硝酸鹽。 它們利用還原無機硫化物,以此為呼吸作用的電子供體來產生將碳固定成生物質能量,並把富餘的硝酸鹽留存在體內的液泡中。碳固定通過卡爾文循環和可逆克雷布斯循環發生。[6]當缺乏硝酸鹽時,它們會動用體內的庫存。[7]
參考
[編輯]- ^ Thiomargarita. NCBI taxonomy. Bethesda, MD: National Center for Biotechnology Information. [29 December 2017]. (原始內容存檔於2017-12-30) (English).
Lineage( full ) cellular organisms; Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales; Thiotrichaceae
- ^ Schulz, H.N., Brinkhoff, T., Ferdelman, T.G., Marine, M.H., Teske, A., Jorgensen, B.B. "Dense populations of a giant sulfur bacterium in Namibian shelf sediments." Science (1999) 284:493-495.
- ^ Volland, Jean-Marie; Gonzalez Rizzo, Silvina; Gros, Olivier; Tyml, Tomáš; Ivanova, Natalia; Schulz, Frederik; Goudeau, Danielle; Elisabeth, Nathalie H; Nath, Nandita; Udwary, Daniel; Malmstrom, Rex R; Guidi-Rontani, Chantal; Bolte-Kluge, Susanne; Davies, Karen M; Jean, Maïtena R; Mansot, Jean-Louis; Mouncey, Nigel J; Angert, Esther; Woyke, Tanja; Date, Shailesh V, A centimeter-long bacterium with DNA compartmentalized in membrane-bound organelles 376 (6600), Science: 1453–1458, 23 Jun 2022 [2024-02-18], (原始內容存檔於2024-01-30)
- ^ Salman, Verena; Amann, Rudolf; Girnth, Anne-Christin; Polerecky, Lubos; Bailey, Jake V.; Høgslund, Signe; Jessen, Gerdhard; Pantoja, Silvio; Schulz-Vogt, Heide N. A single-cell sequencing approach to the classification of large, vacuolated sulfur bacteria. Systematic and Applied Microbiology. 2011-06-01, 34 (4): 243–259. ISSN 1618-0984. PMID 21498017. doi:10.1016/j.syapm.2011.02.001.
- ^ Pennisi, Elizabeth. Largest bacterium ever discovered has an unexpectedly complex cell. Science. 23 February 2022 [25 February 2022]. doi:10.1126/science.ada1620. (原始內容存檔於2022-03-23).
- ^ Flood, Beverly E.; Fliss, Palmer; Jones, Daniel S.; Dick, Gregory J.; Jain, Sunit; Kaster, Anne-Kristin; Winkel, Matthias; Mußmann, Marc; Bailey, Jake. Single-Cell (Meta-)
Genomics of a Dimorphic Candidatus Thiomargarita nelsonii Reveals Genomic Plasticity. Frontiers in Microbiology. 2016-01-01, 7: 603. PMC 4853749 . PMID 27199933. doi:10.3389/fmicb.2016.00603
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- ^ 尼克·萊恩(Nick Lane). 复杂生命的起源. 由嚴, 曦翻譯. 貴州大學出版社. 2020: 170. ISBN 9787569103465.
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