title: Candida xinjiangensis sp. nov., a new anamorphic yeast species isolated from Scolytus scheryrewi Semenov in China.
abstract: Three yeast strains designated as S44, XF1 and XF2, respectively, were isolated from Scolytus scheryrewi Semenov of apricot tree in Shule County, Xinjiang, China, and were demonstrated to be a new member of the genus Candida by sequence comparisons of 26S rRNA gene D1/D2 domain and internal transcribed spacer (ITS) region. BLASTn alignments on NCBI showed that the similarity of 26S rRNA gene sequences of S44 (type strain) to all sequences of other Candida yeasts was very low (≦93 %). The phylogenetic tree based on the 26S rRNA gene D1/D2 domain and ITS region sequences revealed that the strain S44 is closely related to C. blattae, C. dosseyi, C. pruni, C. asparagi, C. fructus and C. musae. However, the strain S44 is distinguished from these Candida species by the physiological characteristics. Moreover, the strain S44 formed typical pseudohyphae when grown on cornmeal agar at 25 °C for 7 days, but did not form ascospores in sporulation medium for 3-4 weeks. Therefore, the name Candida xinjiangensis is proposed for the novel species, with S44 (=KCTCT27747) as the type strain.
authors.affiliation: Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100094, China.|Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China.
authors.forename: Xiao-Feng
authors.initials: XF
authors.lastname: Zhu
authors.affiliation: Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
authors.forename: Dian-Peng
authors.initials: DP
authors.lastname: Zhang
authors.affiliation: Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China. yangsenxj@126.com.
authors.forename: Sen
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100094, China. zhangqingwen@263.net.
authors.forename: Qing-Wen
authors.initials: QW
authors.lastname: Zhang
mesh_terms: D000818:Animals; D002175:Candida / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification*; D002681:China; D001517:Coleoptera / Q000382:microbiology*; D021903:DNA, Ribosomal Spacer / Q000737:chemistry; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D021903:DNA, Ribosomal Spacer; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S
keywords: Apricot tree; Candida xinjiangensis sp. nov.; China; Scolytus scheryrewi