Candida queiroziae sp. nov., a cellobiose-fermenting yeast species isolated from rotting wood in Atlantic Rain Forest.
Eight strains of a novel yeast species were isolated from rotting wood and wood-boring insects in Atlantic Rain Forest ecosystems in Brazil. Sequences of the D1/D2 domains of the large subunit of the rRNA gene showed that the yeast belongs to the Scheffersomyces clade and that it is related to Candida lignicola and Candida coipomoensis. The new species was isolated from rotting wood of three different localities and a wood-boring insect suggesting that these substrates are its ecological niche. This new yeast species is able to assimilate cellobiose and other compounds related to rotting wood. Strong fermentation of cellobiose in Durham tubes was observed for the strains of this new yeast. The new species produced an intracellular β-glucosidase responsible for cellobiose hydrolysis. The novel species, Candida queiroziae sp. nov., is proposed to accommodate these isolates. The type strain of C. queiroziae is UFMG-CLM 5.1(T) (=CBS 11853(T) = NRRL Y-48722(T)).
Departamento de Microbiologia, ICB, CP 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
Renata O
RO
Santos
Raquel M
RM
Cadete
Fernanda
F
Badotti
Adriane
A
Mouro
Daniela O
DO
Wallheim
Fátima C O
FC
Gomes
Boris U
BU
Stambuk
Marc-André
MA
Lachance
Carlos A
CA
Rosa
D002175:Candida / Q000201:enzymology / Q000302:isolation & purification* / Q000378:metabolism*; D002475:Cellobiose / Q000378:metabolism*; D005285:Fermentation; D017422:Sequence Analysis, DNA; D014197:Trees; D001617:beta-Glucosidase / Q000378:metabolism
D002475:Cellobiose; D001617:beta-Glucosidase