Five new species of yeasts from fresh water and marine habitats in the Florida Everglades

Abstract

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 11368(T)) and Candida rhizophoriensis sp. nov. (CBS 11402(T)) (Saccharomycetales, Metschnikowiaceae), and three basidiomycetes: Rhodotorula cladiensis sp. nov. (CBS 10878(T)) in the Sakaguchia clade (Cystobasidiomycetes), Rhodotorula evergladiensis sp. nov. (CBS 10880(T)) in the Rhodosporidium toruloides clade (Microbotryomycetes, Sporidiobolales) and Cryptococcus mangaliensis sp. nov. (CBS 10870(T)) in the Bulleromyces clade (Agaricomycotina, Tremellales).

Fifty years of marine mycology

“…Statzell-Tallman et al (2008) reported 55 and 58 species, respectively, of ascomycetes and basidiomycetes yeasts from three mangrove habitats, 50% of which are un-described. Subsequently, Fell et al (2010) and Statzell-Tallman et al (2010) described other marine yeasts from the Everglades and coral reefs in the Florida Keys, and mangrove regions in Belize and Bahamas (Table 8). In the Everglades study, 74 previously described species were documented with an equal number of new taxa .…”

“…A number of new species could also be assigned with confidence to known families/orders: the yeasts Candida, Cryptococcus, Kwoniella, Pseudozyma, Rhodotorula(Statzell-Tallman et al 2008Fell et al 2010), Glomerulispora, Moheitospora (TBM clade), and Halzoon, Moleospora (Lulworthiales)(Abdel-Wahab et al 2010), and Lanspora (Ophiostomatales, Schoch pers. com.…”

Molecular identification of Pseudozyma aphidis (Henninger & Windisch) Boekhout: first record from a Brazilian mangrove swamp

“…Species of Pseudozyma, including P. aphidis, have commonly been reported in marine and mangrove environments (Gadanho et al 2003, Statzell-Tallman et al 2010, Fell et al 2011.…”

1. Introduction

“…Within the last decade a number of books on freshwater fungi have been published: Freshwater Mycology (Tsui and Hyde 2003) and Genera of Freshwater Fungi (Cai et al 2006), or reviews (Wong et al 1998;Shearer et al 2007;Wurzbacher et al 2010Wurzbacher et al , 2012. Freshwater yeast populations have been almost ignored, despite the fact that they are common in aquatic systems (Hagler and Ahearn 1987;Gadanho and Sampaio 2004;Libkind et al 2010;Fell et al 2011). Ascomycota, chytrids, fungal diseases, ultrastructure of ascospore appendages (Barr 1980;Wong et al 1999;Shearer and Raja 2010).…”