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题名: High fungal diversity and abundance recovered in the deep-sea sediments of the Pacific Ocean.
作者: Wei Xu
Ka-Lai Pang
Zhu-Hua Luo
贡献者: 國立臺灣海洋大學:海洋生物研究所
关键词: Basidiomycota
Clone Library
Internal Transcribe Spacer
Fungal Community
Ascomycota
日期: 2014
上传时间: 2018-04-17T07:39:51Z
出版者: Microbial Ecology
摘要: Abstract: Knowledge about the presence and ecological significance of bacteria and archaea in the deep-sea environments has been well recognized, but the eukaryotic microorganisms, such as fungi, have rarely been reported. The present study investigated the composition and abundance of fungal community in the deep-sea sediments of the Pacific Ocean. In this study, a total of 1,947 internal transcribed spacer (ITS) regions of fungal rRNA gene clones were recovered from five sediment samples at the Pacific Ocean (water depths ranging from 5,017 to 6,986 m) using three different PCR primer sets. There were 16, 17, and 15 different operational taxonomic units (OTUs) identified from fungal-universal, Ascomycota-, and Basidiomycota-specific clone libraries, respectively. Majority of the recovered sequences belonged to diverse phylotypes of Ascomycota (25 phylotypes) and Basidiomycota (18 phylotypes). The multiple primer approach totally recovered 27 phylotypes which showed low similarities (≤97 %) with available fungal sequences in the GenBank, suggesting possible new fungal taxa occurring in the deep-sea environments or belonging to taxa not represented in the GenBank. Our results also recovered high fungal LSU rRNA gene copy numbers (3.52 × 106 to 5.23 × 107copies/g wet sediment) from the Pacific Ocean sediment samples, suggesting that the fungi might be involved in important ecological functions in the deep-sea environments.
關聯: 68(4) pp.688-698
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45926
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