Candida queiroziae sp nov., a cellobiose-fermenting yeast species isolated from rotting wood in Atlantic Rain Forest

被引:27
|
作者
Santos, Renata O. [1 ]
Cadete, Raquel M. [1 ]
Badotti, Fernanda [1 ,2 ]
Mouro, Adriane [3 ]
Wallheim, Daniela O. [3 ]
Gomes, Fatima C. O. [2 ]
Stambuk, Boris U. [3 ]
Lachance, Marc-Andre [4 ]
Rosa, Carlos A. [1 ]
机构
[1] Univ Fed Minas Gerais, Dept Microbiol, ICB, BR-31270901 Belo Horizonte, MG, Brazil
[2] Ctr Fed Educ Tecnol Minas Gerais, Dept Quim, BR-30480000 Belo Horizonte, MG, Brazil
[3] Univ Fed Santa Catarina, Dept Bioquim, Ctr Ciencias Biol, BR-88040900 Florianpolis, SC, Brazil
[4] Univ Western Ontario, Dept Biol, London, ON N6A 5B7, Canada
关键词
New yeast species; Candida queiroziae; Cellobiose-fermenting yeast; Rotting wood; Atlantic Rain Forest; BIOFUEL PRODUCTION; TRANSPORT; FERMENTATION; BIOMASS; GLUCOSE; ETHANOL;
D O I
10.1007/s10482-010-9536-z
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
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 beta-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)).
引用
收藏
页码:635 / 642
页数:8
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