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Temporal variation in mycorrhizal diversity and carbon and nitrogen stable isotope abundance in the wintergreen meadow orchid Anacamptis morio

Titelangaben

Ercole, Enrico ; Adamo, Martino ; Rodda, Michele ; Gebauer, Gerhard ; Girlanda, Mariangela ; Perotto, Silvia:
Temporal variation in mycorrhizal diversity and carbon and nitrogen stable isotope abundance in the wintergreen meadow orchid Anacamptis morio.
In: New Phytologist. Bd. 205 (2015) Heft 3 . - S. 1308-1319.
ISSN 1469-8137
DOI: https://doi.org/10.1111/nph.13109

Abstract

Many adult orchids, especially photoautotrophic species, associate with a diverse range ofmycorrhizal fungi, but little is known about the temporal changes that might occur in thediversity and functioning of orchid mycorrhiza during vegetative and reproductive plantgrowth.Temporal variations in the spectrum of mycorrhizal fungi and in stable isotope natural abun-dance were investigated in adult plants of Anacamptis morio, a wintergreen meadow orchid.Anacamptis morioassociated with mycorrhizal fungi belonging to Tulasnella,Ceratobasidiumand a clade of Pezizaceae (Ascomycetes). When a complete growing seasonwas investigated, multivariate analyses indicated significant differences in the mycorrhizalfungal community. Among fungi identified from manually isolated pelotons, Tulasnella wasmore common in autumn and winter, the pezizacean clade was very frequent in spring, andCeratobasidium was more frequent in summer. By contrast, relatively small variations werefound in carbon (C) and nitrogen (N) stable isotope natural abundance, A. moriosamples showing similar15N enrichment and13C depletion at the different sampling times.These observations suggest that, irrespective of differences in the seasonal environmentalconditions, the plant phenological stages and the associated fungi, the isotopic content inmycorrhizal A. morioremains fairly constant over time.

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER124843
Institutionen der Universität: Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 22 Jul 2015 05:41
Letzte Änderung: 22 Jul 2015 05:41
URI: https://eref.uni-bayreuth.de/id/eprint/16953