bei Google ScholarTitelangaben
Peršoh, Derek ; Stolle, Nancy ; Brachmann, Andreas ; Begerow, Dominik ; Rambold, Gerhard:
Fungal guilds are evenly distributed along a vertical spruce forest soil profile while individual fungi show pronounced niche partitioning.
In: Mycological Progress.
Bd. 17
(2018)
Heft 8
.
- S. 925-939.
ISSN 1861-8952
DOI: https://doi.org/10.1007/s11557-018-1405-6
Abstract
Saprotrophic and ectomycorrhizal (EcM) forest fungi decompose organic matter andmobilize nutrients for host plants, respectively. Competition between the two guildsmay cause the so-called 'Gadgil effect', i.e. decreased litter decomposition ratesresulting in increased carbon storage in soil. The Gadgil effect was supposed to evenaffect global climate, highlighting the necessity to understand fungal distribution andinteractions in soil. Searching for evidence of competition between saprotrophic andmycorrhizal fungi, we analyzed the distribution of fungi along a well-stratified verticalspruce forest soil profile in two seasons, i.e. autumn and the following spring. Thedifferent soil strata (i.e. two mineral horizons and two organic layers) underneath thelitter layer were colonized by distinct fungal communities, which included roughlyconsistent proportions of all fungal guilds and phyla at each time. However, thecommunity composition changed quantitatively between the sampling dates. Along thevertical soil profile, it differed mostly between the organic layers and the mineral soil,which is supposed to be due to differences in the predominant energy sources (i.e.aboveground litter and rhizodeposition, respectively). Network analyses revealed co-occurrences (i.e. positive correlations of individual abundances) to outweigh mutualexclusions (i.e. negative correlations) between individual fungi in each soil stratum andseason. This also applied for interactions between saprotrophic and EcM fungi.Network analyses therefore provided no indications for a possible Gadgil effect.However, considering individual nutrient use efficiencies might refine insights fromnetwork analyses in future studies and facilitate linking community dynamics toecosystem processes.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER145988 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Professur Mykologie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Professur Mykologie > Professur Mykologie - Univ.-Prof. Dr. Gerhard Rambold Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 04 Apr 2019 10:22 |
| Letzte Änderung: | 04 Apr 2019 10:22 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/48236 |