Langbahn Team – Weltmeisterschaft

Kluyveromyces aestuarii

Kluyveromyces aestuarii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Saccharomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Kluyveromyces
Species:
K. aestuarii
Binomial name
Kluyveromyces aestuarii
(Fell) van der Walt, 1965
Synonyms
  • Saccharomyces aestuarii
  • Zygofabospora aestuarii
  • Dekkeromyces aestuarii

Kluyveromyces aestuarii is a Kluyveromyces species of fungus occurring as a marine yeast. It was discovered in 1961 and was originally placed in the genus Saccharomyces.[1]

Taxonomy

Upon discovery, the fungus was named Saccharomyces aestuarii. A 1965 evaluation of the genus Kluyveromyces placed the species within that genus, with the new name of Kluyveromyces aestuarii, based on the properties of its ascospore formation.[2]

Growth and morphology

Colonies of K. aestuarii have colorations ranging from white to deep ochre, due to the presence of the iron chelate pulcherrimin in the cells.[3] The cells are globose to ellipsoidal in shape when grown on Yeast-Mold (YM) agar, and range between roughly 2–6×3–7 μm in size. Pseudohyphae formation occurs after roughly two weeks of growth on corn meal agar.[3] K. aestuarii is not particularly thermotolerant, and cannot grow at or above 37 °C.[1][3] It has the ability to ferment glucose, as well as sucrose and raffinose, but cannot ferment galactose, lactose, or maltose.[1]

Ecology

Kluyveromyces aestuarii is a marine fungus. It was first isolated from shallow estuarine sediment in Biscayne Bay, off the coast of Florida.[1] It has also been discovered in the Torres Strait of Australia,[4] as well as in a mangrove forest near Rio de Janeiro, Brazil, where it was isolated from a shipworm (Neoteredo reynei), a clam (Tagelus plebius), and two crab species (Sesarma rectum and Uca spp.).[5] K. aestuarii has been identified as a possible indicator organism for environmental pollution of mangrove forests.[6]

References

  1. ^ a b c d Fell, J. W. (1961). "A new species of Saccharomyces isolated from a subtropical estuary". Antonie van Leeuwenhoek. 27: 27–30. doi:10.1007/BF02538419. ISSN 0003-6072. PMID 13698769.
  2. ^ van der Walt, J. P. (1965). "The emendation of the genus Kluyveromyces v. d. Walt". Antonie van Leeuwenhoek. 31 (4): 341–348. doi:10.1007/BF02045913. ISSN 0003-6072. PMID 5296350.
  3. ^ a b c Lachance, Marc-André (2011-01-01), Kurtzman, Cletus P.; Fell, Jack W.; Boekhout, Teun (eds.), "Kluyveromyces van der Walt (1971)", The Yeasts (Fifth Edition), London: Elsevier, pp. 471–481, ISBN 978-0-444-52149-1, retrieved 2024-09-06
  4. ^ "CBS 4904". Westerdijk Fungalbio Diversity Institute. Retrieved 11 September 2024.
  5. ^ de Araujo, F. V.; Soares, C. A. G.; Hagler, A. N.; Mendonça-Hagler, L. C. (1995-08-01). "Ascomycetous yeast communities of marine invertebrates in a Southeast Brazilian mangrove ecosystem". Antonie van Leeuwenhoek. 68 (2): 91–99. doi:10.1007/BF00873096. ISSN 1572-9699. PMID 8546456.
  6. ^ Araujo, F.V.; Hagler, A. N. (2011). "Kluyveromyces aestuarii, a potential environmental quality indicator yeast for mangroves in the State of Rio de Janeiro, Brazil". Brazilian Journal of Microbiology. 42 (3): 954–958. doi:10.1590/S1517-838220110003000014 (inactive 1 November 2024). ISSN 1517-8382. PMC 3768779. PMID 24031711.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
Quelle: http://en.wikipedia.org/wiki/Kluyveromyces_aestuarii