4.4 Article

New species of Yamadazyma from rotting wood in China

Journal

MYCOKEYS
Volume -, Issue 83, Pages 69-84

Publisher

PENSOFT PUBLISHERS
DOI: 10.3897/mycokeys.83.71156

Keywords

Debaryomycetaceae; phylogeny; rotting wood-inhabiting yeast; taxonomy; Yamadazyma

Categories

Funding

  1. National Natural Science Foundation of China, China [31570021]
  2. State Key Laboratory of Motor Vehicle Biofuel Technology, Henan Tianguan Enterprise Group Co., Ltd., China [2018001]

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This study identified three new species of Yamadazyma, as well as three previously described species, from rotting wood in Henan and Yunnan Provinces of China. The findings suggest a high undiscovered diversity of Yamadazyma species inhabiting rotting wood in China.
Yamadazyma is one of the largest genera in the family Debaryomycetaceae (Saccharomycetales, Saccharo-mycetes) with species mainly found in rotting wood, insects and their resulting frass, but also recovered from flowers, leaves, fruits, tree bark, mushrooms, sea water, minerals, and the atmosphere. In the present study, several strains obtained from rotting wood in Henan and Yunnan Provinces of China were iso-lated. Based on morphology and a molecular phylogeny of the rDNA internal transcribed spacer region (ITS) and the D1/D2 domain of the large subunit (LSU) rDNA, these strains were identified as three new species: Yamadazyma luoyangensis, Y. ovata and Y. paraaseri; and three previously described species, Y. insectorum, Y. akitaensis, and Y. olivae. The three new species are illustrated and their morphology and phylogenetic relationships with other Yamadazyma species are discussed. Our results indicate a high undiscovered diversity of Yamadazyma spp. inhabiting rotting wood in China.

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