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Kluyveromyces aestuarii

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Species of fungus

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.

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.

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. 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. K. aestuarii is not particularly thermotolerant, and cannot grow at or above 37 °C. It has the ability to ferment glucose, as well as sucrose and raffinose, but cannot ferment galactose, lactose, or maltose.

Ecology

Kluyveromyces aestuarii is a marine fungus. It was first isolated from shallow estuarine sediment in Biscayne Bay, off the coast of Florida. It has also been discovered in the Torres Strait of Australia, 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.). K. aestuarii has been identified as a possible indicator organism for environmental pollution of mangrove forests.

References

  1. ^ 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. ^ 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)
Taxon identifiers
Kluyveromyces aestuarii
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