Genomic insights into the carbohydrate catabolism of Cairneyella variabilis gen. nov. sp. nov., the first reports from a genome of an ericoid mycorrhizal fungus from the southern hemisphere

详细信息    查看全文

• 作者：David J. Midgley ; Carly P. Rosewarne ; Paul Greenfield ; Dongmei Li…
• 刊名：Mycorrhiza
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：26
• 期：4
• 页码：345-352
• 全文大小：619 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Microbiology
  Plant Sciences
  Ecology
  Agriculture
  Forestry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1890
• 卷排序：26

文摘

This paper describes a novel species of ericoid mycorrhizal fungus from Australia, Cairneyella variabilis, Midgley and Tran-Dinh, gen. nov. sp. nov. The genome of C. variabilis was sequenced and a draft genome assembled. The draft genome of C. variabilis is 52.4 Mbp in length, and to our knowledge, this is the first study to present a genome of an ericoid mycorrhizal fungus from the southern hemisphere. Using the SignalP and dbCAN bioinformatic pipelines, a study of the catabolic potential of C. variabilis was undertaken and showed genes for an array of degradative enzymes, most of which appear to be secreted from the hyphae, to access a suite of different carbon sources. Isolates of C. variabilis have been previously shown to utilise cellulose, carboxymethyl cellulose (CMC), cellobiose, xylan, pectin, starch and tannic acid for growth, and in the current study, putative enzymes for these processes were revealed. These enzymes likely play key roles in nutrient cycling and other edaphic processes in heathland environments. ITS phylogenetic analyses showed C. variabilis to be distinct from the fungi of the “Hymenoscyphus ericae aggregate”.KeywordsFungiEricaceaeHelotiales