Snow moulds in polar environments

Tojo, Motoaki; Newsham, Kevin K. ORCID: 2012 Snow moulds in polar environments. Fungal Ecology, 5 (4). 395-402.

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Snow moulds are fungi and fungal-like microbes that occur frequently as pathogens of moss and vascular plant species in the Arctic and Antarctic, chiefly in maritime areas with permanent snow cover for several months of each year. Here, we review the environments inhabited by polar snow moulds, their distribution and the macroscopic features of infections, such as the sclerotia that form on the leaves of higher plants, or the more frequently encountered concentric rings found in moss stands. The microscopic features of infections are described, as are the taxa of snow moulds found in polar habitats, such as the ascomycetes Thyronectria antarctica var. hyperantarctica and Sclerotinia borealis, the basidiomycete Typhula ishikariensis and the oomycete Pythium. Recent research, also reviewed here, indicates that a heterothallic species of Pythium apparently has a bipolar distribution. The adaptations of snow moulds to polar environments, such as their growth at low temperatures, are covered, as are avenues for future research on these microbes.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: BAS Programmes > Polar Science for Planet Earth (2009 - ) > Ecosystems
ISSN: 1754-5048
Additional Keywords: Antarctic, Arctic, Ascomycetes, Basidiomycetes, Bipolar distribution, Oomycetes, Opportunistic parasites, Psychrophiles, Psychrotrophs, Pythium
Date made live: 17 Aug 2012 09:16 +0 (UTC)

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