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Citation for Study 18173

About Citation title: "Barrenia, a new genus associated with roots of switchgrass and pine in the oligotrophic pine barrens ".
About Study name: "Barrenia, a new genus associated with roots of switchgrass and pine in the oligotrophic pine barrens ".
About This study is part of submission 18173 (Status: Published).

Citation

Walsh E., Luo J., Naik A., Preteroti T., & Zhang N. 2015. Barrenia, a new genus associated with roots of switchgrass and pine in the oligotrophic pine barrens. Fungal Biology, .

Authors

  • Walsh E.
  • Luo J.
  • Naik A.
  • Preteroti T.
  • Zhang N. Phone 8145743939

Abstract

A new genus Barrenia is described based on multi-gene phylogenetic analyses, phenotypic and ecological characters. Isolated from roots of switchgrass and pitch pine in the acidic and oligotrophic New Jersey Pine Barrens in this study, Barrenia likely has a wide distribution because its internal transcribed spacer (ITS) sequence has high similarity with a number of GenBank sequences from various ecological studies. The majority of these matching samples were from roots of plants in acidic, nutrient-poor environments, as well as from managed sugarcane plantations. Phylogenetic analyses based on ITS, LSU and RPB1 sequence data strongly support that Barrenia is a monophyletic clade in Helotiales, distinct from any known taxa. Barrenia is phylogenetically close to Acidomelania, Loramyces, Mollisia, and Phialocephala fortinii - Acephala applanata species complex (PAC), the dark septate endophytes. Barrenia can be distinguished from Loramyces and Mollisia by its association with living plant roots. Taxa in PAC also are root endophytes but they have complex phialid arrangements that appear to be lacking in Barrenia. Plant-fungal interaction experiments showed that Barrenia panicia and Acidomelania panicicola significantly promoted root hair growth in switchgrass. Results from this work will facilitate ecological and evolutionary studies on root-associated fungi.

Keywords

Dark septate endophytes; Grass; Growth promotion; Leotiomycetes; Phylogeny; Taxonomy

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S18173
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