12.11.2012: Aufgegriffen

Neue Pilzart in den Alpen entdeckt

Nouvelle espèce de champignon découverte dans les Alpes


Fritz Oehl et al.

Wissenschaftler haben in den Schweizer Alpen einen neuen Mykorrhizapilz entdeckt und beschrieben. Acaulospora nivalis ist in der subnivalen und in der nivalen Stufe die häufigste Mykorrhiza-Art.

Des scientifiques ont découvert et décrit un nouveau champignon mycorhizien. Acaulospora nivalis est l’espèce mycorhizienne la plus fréquente à l’étage subnival et nival.


A new fungus in the Glomeromycetes was found in the high alpine and nival altitudes of Switzerland in the rhizosphere of several alpine plant species, with a wide soil pH range from 3.9–7.8. Molecular analyses on the ITS region and partial LSU rDNA gene place the fungus phylogenetically in a monophyletic clade within the genus Acaulospora next to A. sieverdingii, A. paulinae, A. cavernata and A. punctata. An updated identification key for Acaulospora species is presented. The new fungus may co-occur in low frequency with species like A. alpina and A. paulinae in the alpine pastures between 2000 and 2600 m asl. However, it often is the most frequently and most abundantly found Acaulospora species at highest altitudes of plant life, i.e. at subnival and nival altitudes, where it was found in pioneer screes of shallowest soils and associated with pioneer plant species like Linaria alpina, Poa alpina and Saxifraga stellaris.

Art der Publikation:
Fachpublikation

Literatur:
Oehl F. et al. (2012). Acaulospora nivalis, a new fungus in the Glomeromycetes, characteristic for high alpine and nival altitudes of the Swiss Alps. Nova Hedwigia, Volume 95, Numbers 1-2, 105-122.
http://www.ingentaconnect.com/content/schweiz/novh/2012/00000095/F0020001/art00003?token=00541eb2385522b45b090b383a4b3b25703a2b6c244138767c4041472a726e2d58464340592f3f3b5744

Kontaktadresse:
Fritz Oehl
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Reckenholzstrasse 191
CH-8046 Zürich

Tel: +41 (0)44 377 73 21


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