Geodina

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Geodina
Scientific classification
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Genus:
Geodina

Denison
Type species
Geodina guanacastensis
Denison

Geodina is a genus of fungi in the family Sarcoscyphaceae. [1] This genus contains two species: Geodina guanacastensis, found in Costa Rica, and Geodina salmonicolor, found in the Dominican Republic. [2]

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Suillus salmonicolor, commonly known as the Slippery Jill, is a fungus in the family Suillaceae of the order Boletales. First described as a member of the genus Boletus in 1874, the species acquired several synonyms, including Suillus pinorigidus and Suillus subluteus, before it was assigned its current binomial name in 1983. It has not been determined with certainty whether S. salmonicolor is distinct from the species S. cothurnatus, described by Rolf Singer in 1945. S. salmonicolor is a mycorrhizal fungus—meaning it forms a symbiotic association with the roots of plants such that both organisms benefit from the exchange of nutrients. This symbiosis occurs with various species of pine, and the fruit bodies of the fungus appear scattered or in groups on the ground near the trees. The fungus is found in North America, Hawaii, Asia, the Caribbean, South Africa, Australia and Central America. It has been introduced to several of those locations via transplanted trees.

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Sporobolomyces salmonicolor is a species of fungus in the subdivision Pucciniomycotina. It occurs in both a yeast state and a hyphal state, the latter formerly known as Sporidiobolus salmonicolor. It is generally considered a Biosafety Risk Group 1 fungus; however isolates of S. salmonicolor have been recovered from cerebrospinal fluid, infected skin, a nasal polyp, lymphadenitis and a case of endophthalmitis. It has also been reported in AIDS-related infections. The fungus exists predominantly in the anamorphic (asexual) state as a unicellular, haploid yeast yet this species can sometimes produce a teleomorphic (sexual) state when conjugation of compatible yeast cells occurs. The asexual form consists of a characteristic, pink, ballistosporic yeast. Ballistoconidia are borne from slender extensions of the cell known as sterigmata and are forcibly ejected into the air upon maturity. Levels of airborne yeast cells peak during the night and are abundant in areas of decaying leaves and grains. Three varieties of Sporobolomyces salmonicolor have been described; S. salmonicolor var. albus, S. salmonicolor var. fischerii, and S. salmonicolor var. salmoneus.

References

  1. Lumbsch TH, Huhndorf SM (December 2007). "Outline of Ascomycota – 2007". Myconet. Chicago, USA: The Field Museum, Department of Botany. 13: 1–58. Archived from the original on March 18, 2009. Retrieved 2009-12-05.
  2. Angelini C, Medardi G, Alvarado P (March 8, 2018). "Contribution to the study of neotropical discomycetes: a new species of the genus Geodina (Geodina salmonicolor sp. nov.) from the Dominican Republic" (PDF). Mycosphere. Guiyang, CN: Guizhou Academy of Agricultural Sciences, Department of Botany. 9 (2): 169–177.