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Genetic variations and in vitro root-colonizing ability for an ericaceous host in Sarcoleotia globosa (Geoglossomycetes).

Authors :
Baba T
Janošík L
Koukol O
Hirose D
Source :
Fungal biology [Fungal Biol] 2021 Dec; Vol. 125 (12), pp. 971-979. Date of Electronic Publication: 2021 Aug 28.
Publication Year :
2021

Abstract

We discovered that Sarcoleotia globosa (Geoglossomycetes) fruited on the soil of ornamental Erica pot cultures, and its ascospores can germinate on plain agar. These findings prompted us to collect isolates from horticultural and natural environments in Japan and analyze their phylogeny and root colonizing ability. Pure cultures were successfully obtained from ascospores and surface-sterilized ericaceous roots. Phylogenetic analysis based on rRNA internal transcribed spacer sequences revealed that Japanese samples were separated into three strongly supported clades. Individual clade consisted of samples derived from (1) Erica pot cultures, (2) Rhododendron planted in a garden or Vaccinium pot culture, and (3) natural habitats in Hokkaido. Colony characteristics and in vitro root-colonizing morphology observed may correspond to these phylogenetic variations. Irrespective of the clades, all tested strains formed hyphal coils in vital rhizodermal cells of V. virgatum seedlings, which resembled those of ericoid mycorrhizae. Our results represent novel findings that can be the first step in unraveling the currently unknown ecology of geoglossoid fungi.<br /> (Copyright © 2021 British Mycological Society. Published by Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1878-6146
Volume :
125
Issue :
12
Database :
MEDLINE
Journal :
Fungal biology
Publication Type :
Academic Journal
Accession number :
34776234
Full Text :
https://doi.org/10.1016/j.funbio.2021.08.005