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Typhula cf. subvariabilis, new snow mould in Antarctica

Author:
Yajima, Yuka, Tojo, Motoaki, Chen, Bo, Hoshino, Tamotsu
Source:
Mycology 2017 v.8 no.3 pp. 147-152
ISSN:
2150-1203
Subject:
DNA, Polytrichum, Typhula, fruiting bodies, fungi, hyphae, internal transcribed spacers, leaves, melting, mosses and liverworts, niches, sclerotia, snow blight, Antarctica, Iran, Polar Regions
Abstract:
We collected snow blight of moss, Polytrichum juniperinum on King George Island, maritime Antarctica. Host died in a circle of about 10–30 cm after snow melts. Clamp connected hyphae and no sclerotia were observed on tip of host leaves. DNA sequence of ITS region from moss symptoms were perfectly matched with fruit bodies of Typhula sp. on Macquarie Island in the maritime Antarctica and high homology with Typhula cf. subvariabilis from Iran. Therefore, we suggested that T . cf. subvariabilis caused snow blight on moss in Antarctica, and this is first record of Typhula snow blight in Southern Hemisphere. These results also suggested that fungi in same genera gained similar ecological niche in both Polar Regions.
Agid:
5849362