Five new species of yeasts from fresh water and marine habitats in the Florida Everglades
Yeast populations in the Shark River Slough of the Florida Everglades, USA, were examined during a 3-year period (2002–2005) at six locations ranging from fresh water marshes to marine mangroves. Seventy-four described species (33 ascomycetes and 41 basidiomycetes) and an approximately equal number of undescribed species were isolated during the course of the investigation. Serious human pathogens, such as Candida tropicalis, were not observed, which indicates that their presence in coastal waters is due to sources of pollution. Some of the observed species were widespread throughout the fresh water and marine habitats, whereas others appeared to be habitat restricted. Species occurrence ranged from prevalent to rare. Five representative unknown species were selected for formal description. The five species comprise two ascomycetes: Candida sharkiensis sp. nov. (CBS 11368T) and Candida rhizophoriensis sp. nov. (CBS 11402T) (Saccharomycetales, Metschnikowiaceae), and three basidiomycetes: Rhodotorula cladiensis sp. nov. (CBS 10878T) in the Sakaguchia clade (Cystobasidiomycetes), Rhodotorula evergladiensis sp. nov. (CBS 10880T) in the Rhodosporidium toruloides clade (Microbotryomycetes, Sporidiobolales) and Cryptococcus mangaliensis sp. nov. (CBS 10870T) in the Bulleromyces clade (Agaricomycotina, Tremellales).
KeywordsYeast New species Candida Cryptococcus Rhodotorula Florida Everglades
The continued and enthusiastic cooperation by the FIU/LTER personnel was of utmost importance to success of this project. The research was supported by the National Science Foundation through Biotic Surveys and Inventories Grant DEB 0206521 and the Florida Coastal Everglades Long-Term Ecological Research program under Grants DBI-0620409 and DEB-9910514. M. H. Gutiérrez, a visiting student at RSMAS, was sponsored by Fundacion Andes (Chile) through a WHOI/UDEC Agreement. Figure 1 is a map created with the Interactive Everglades Mapping tool available at http://fcelter.fiu.edu/data/GIS/interactive_map/.
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