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Kottke, I.; Suarez, J.P.; Cruz, D.; Herrera, P.; Bauer, R.; Haug, I. & Garnica, S. (2010): Atractiellomycetes belonging to the 'rust' lineage (Pucciniomycotina) form mycorrhizae with terrestrial and epiphytic neotropical orchids.. Proceedings Royal Society B 277, 1289-1296
DOI: http://dx.doi.org/10.1098/repb.2009.1884.

Resource Description

Title: Atractiellomycetes belonging to the 'rust' lineage (Pucciniomycotina) form mycorrhizae with terrestrial and epiphytic neotropical orchids.
Short Name: Atractiellomycetes
FOR816dw ID: 715
Publication Date: 2010-01-01
License and Usage Rights: http://www.tropicalmountainforest.org/dataagreement.do
Resource Owner(s):
Individual: Ingrid Kottke
Contact:
Individual: Juan Pablo Suarez
Contact:
Individual: Darío Cruz
Contact:
Individual: Paulo Herrera
Contact:
Individual: Robert Bauer
Contact:
Individual: Ingeborg Haug
Contact:
Individual: Sigisfredo Garnica
Contact:
Abstract:
Distinctive groups of fungi are involved in the diverse mycorrhizal associations of land plants. All previously known mycorrhiza forming Basidiomycota associated with trees, ericads, liverworts or orchids are hosted in Agaricomycetes, Agaricomycotina. Here we demonstrate for the first time that Atractiellomycetes, members of the ?rust? lineage (Pucciniomycotina), are mycobionts of orchids. The mycobionts of 103 terrestrial and epiphytic orchid individuals, sampled in the tropical mountain rain forest of Southern Ecuador, were identified by sequencing the whole ITS1-5.8S-ITS2 region and part of 28S rDNA. Mycorrhizae of 13 orchid individuals were investigated by transmission electron microscopy. Simple septal pores and symplechosomes in the hyphal coils of mycorrhizae from four orchid individuals indicated members of Atractiellomycetes. Molecular phylogeny of sequences from mycobionts of 32 orchid individuals out of 103 samples confirmed Atractiellomycetes and the placement in Pucciniomycotina, previously known to comprise only parasitic and saprophytic fungi. Thus, our finding reveals these fungi, frequently associated to neotropical orchids, as the most basal living basidiomycetes involved in mycorrhizal associations of land plants.
Keywords:
| Atractiellales | orchid mycorrhiza | pucciniomycotina | helicogloea | neotropical mountain rain forest | simple-septate basidiomycota |
Literature type specific fields:
ARTICLE
Journal: Proceedings Royal Society B
Volume: 277
Page Range: 1289-1296
Publisher: Royal Society London
Metadata Provider:
Individual: Bernhard Runzheimer
Contact:
Online Distribution:
Download File: http://www.tropicalmountainforest.org/publications.do?citid=715

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