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Rikenellaceae ( German )

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Die Rikenellaceae sind eine Familie von Bakterien. Die Typusgattung ist Rikenella. Sie ist nach dem Riken-Institut in Japan benannt.[1]

Erscheinungsbild

Die Zellen sind stäbchenförmig. Sie sind gerade oder, z. B. bei Alistipes, leicht gekrümmt. Sporen werden nicht gebildet. Die Größe von Alistipes liegt im Bereich von 0,2 bis 0,9 µm im Durchmesser und 0,5 bis 4 µm in Länge, bei Anaerocella 0,5 bis 0,6 µm in Breite und 1,5 bis 2,5 µm in Länge.[2]

Wachstum und Stoffwechsel

Alle Arten sind anaerob. Der Stoffwechsel erfolgt über Fermentation und ist chemo-organotroph. Einige Produkte der Fermentation von Glucose von Rikenella sind Propionsäure, Succinylsäure (Bernsteinsäure), Essigsäure und geringe Mengen von Alkoholen, von Alistipes Succinylsäure und geringe Mengen von Essigsäure. Anaerocella produziert unter anderem Isobutansäure.[2]

Vorkommen

Rikenella wurde unter anderem im Kot von Hühnern und von Kälbern isoliert, Alistipes aus dem Darm von Menschen und verschiedenen Tieren.

Systematik

Die Familie der Rikenellaceae wird zu der Ordnung Bacteroidales in der Abteilung der Bacteroidetes gestellt. Einige Gattungen:[1]

Quellen

Literatur

  • Krieg, N.R.; Ludwig, W.; Whitman, W.B.; Hedlund, B.P.; Paster, B.J.; Staley, J.T.; Ward, N.; Brown, D.; Parte, A.: Bergey's Manual of Systematic Bacteriology. Volume 4: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes. Springer, 2010, ISBN 978-0-387-68572-4, S. 49–51.

Einzelnachweise

  1. a b Jean Euzéby, Aidan C. Parte: Family Rikenellaceae. In: List of Prokaryotic names with Standing in Nomenclature (LPSN). Abgerufen am 26. September 2018.
  2. a b Kunihiro Abe, Atsuko Ueki, Yoshimi Ohtaki, Nobuo Kaku, Kazuya Watanabe und Katsuji Ueki.: Anaerocella delicata gen. nov., sp. nov., a strictly anaerobic bacterium in the phylum Bacteroidetes isolated from a methanogenic reactor of cattle farms. In: The Journal of General and Applied Microbiology. 58, Nr. 6, 2012, S. 405–512.
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Rikenellaceae: Brief Summary ( German )

provided by wikipedia DE

Die Rikenellaceae sind eine Familie von Bakterien. Die Typusgattung ist Rikenella. Sie ist nach dem Riken-Institut in Japan benannt.

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Rikenellaceae

provided by wikipedia EN

Rikenellaceae is a family of Gram-negative bacteria described by Noel R. Krieg in 2015. It contains nine genera, five of which are validly published by the International Code of Nomenclature of Prokaryotes.[2] Bacteria with 16S ribosomal RNA highly similar to the Rikenella genus, as compared to the larger taxonomic order Bacteroidales, are classified in this family.[1]

This family consists of non-motile, rod-shaped bacteria that are tolerant of bile. Most Rikenellaceae species have been identified in the gastrointestinal tract microbiomes of various animals.[3]

Bacteria of this taxonomic family are elevated in the gut microbiomes of mice that are leptin-resistant obese and diabetic.[4] However, Rikenellaceae bacteria are depleted in the gut microbiomes of obese American adults, leading to reduced synthesis of butyrate and disrupted metabolism.[5]

Gut microbiomes with elevated levels of Rikenellaceae bacteria are associated with lupus and Alzheimer's disease in mice and colorectal cancer in humans.[6][7][8]

References

  1. ^ a b Krieg, Noel R. (14 September 2015). "Rikenellaceae fam. nov". Bergey's Manual of Systematics of Archaea and Bacteria: 1–2. doi:10.1002/9781118960608.fbm00062. ISBN 9781118960608.
  2. ^ a b Parte, Aidan C.; Carbasse, Joaquim Sardà; Meier-Kolthoff, Jan P.; Reimer, Lorenz C.; Göker, Markus (23 July 2020). "Family Rikenellaceae". List of Prokaryotic names with Standing in Nomenclature. Retrieved 8 April 2023.
  3. ^ Graf, Joerg (2014). "The Family Rikenellaceae". In Rosenberg, Eugene; DeLong, Edward F.; Lory, Stephen; Stackebrandt, Erko; Thompson, Fabiano (eds.). The Prokaryotes (4th ed.). Springer Berlin. pp. 857–859. doi:10.1007/978-3-642-38954-2_134. ISBN 978-3-642-38953-5.
  4. ^ Cani, Patrice D. (24 April 2013). "Gut Microbiota and Obesity: Lessons from the Microbiome". Briefings in Functional Genomics. 12 (4): 381–387. doi:10.1093/bfgp/elt014. PMID 23616309 – via Oxford Academic.
  5. ^ Peters, Brandilyn A.; Shapiro, Jean A.; Church, Timothy R.; Miller, George; Trinh-Shevrin, Chau; Yuen, Elizabeth; Friedlander, Charles; Hayes, Richard B.; Ahn, Jiyoung (2018-06-27). "A taxonomic signature of obesity in a large study of American adults". Scientific Reports. 8 (1): 9749. doi:10.1038/s41598-018-28126-1. ISSN 2045-2322. PMC 6021409. PMID 29950689.
  6. ^ Wang, Hui; Wang, Gangduo; Banerjee, Nivedita; Liang, Yuejin; Du, Xiaotang; Boor, Paul J.; Hoffman, Kristi L.; Khan, M. Firoze (12 April 2021). "Aberrant Gut Microbiome Contributes to Intestinal Oxidative Stress, Barrier Dysfunction, Inflammation and Systemic Autoimmune Responses in MRL/lpr Mice". Frontiers in Immunology. 12: 651191. doi:10.3389/fimmu.2021.651191. ISSN 1664-3224. PMC 8071869. PMID 33912174.
  7. ^ Bello-Medina, Paola C.; Corona-Cervantes, Karina; Zavala Torres, Norma Gabriela; González, Antonio; Pérez-Morales, Marcel; González-Franco, Diego A.; Gómez, Astrid; García-Mena, Jaime; Díaz-Cintra, Sofía; Pacheco-López, Gustavo (26 July 2022). "Chronic-Antibiotics Induced Gut Microbiota Dysbiosis Rescues Memory Impairment and Reduces ß-Amyloid Aggregation in a Preclinical Alzheimer's Disease Model". International Journal of Molecular Sciences. 23 (15): 8209. doi:10.3390/ijms23158209. ISSN 1422-0067. PMC 9331718. PMID 35897785.
  8. ^ Hoang, Tung; Kim, Min Jung; Park, Ji Won; Jeong, Seung-Yong; Lee, Jeeyoo; Shin, Aesun (14 June 2022). "Nutrition-Wide Association Study of Microbiome Diversity and Composition in Colorectal Cancer Patients". BMC Cancer. 22 (1): 656. doi:10.1186/s12885-022-09735-6. ISSN 1471-2407. PMC 9199192. PMID 35701733.
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN

Rikenellaceae: Brief Summary

provided by wikipedia EN

Rikenellaceae is a family of Gram-negative bacteria described by Noel R. Krieg in 2015. It contains nine genera, five of which are validly published by the International Code of Nomenclature of Prokaryotes. Bacteria with 16S ribosomal RNA highly similar to the Rikenella genus, as compared to the larger taxonomic order Bacteroidales, are classified in this family.

This family consists of non-motile, rod-shaped bacteria that are tolerant of bile. Most Rikenellaceae species have been identified in the gastrointestinal tract microbiomes of various animals.

Bacteria of this taxonomic family are elevated in the gut microbiomes of mice that are leptin-resistant obese and diabetic. However, Rikenellaceae bacteria are depleted in the gut microbiomes of obese American adults, leading to reduced synthesis of butyrate and disrupted metabolism.

Gut microbiomes with elevated levels of Rikenellaceae bacteria are associated with lupus and Alzheimer's disease in mice and colorectal cancer in humans.

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