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Halbwachs, Hans ; Heilmann-Clausen, Jacob ; Bässler, Claus:
Mean spore size and shape in ectomycorrhizal and saprotrophic assemblages show strong responses under resource constraints.
In: Fungal Ecology.
Bd. 26
(2017)
.
- S. 59-64.
ISSN 1754-5048
DOI: https://doi.org/10.1016/j.funeco.2016.12.001
Abstract
Ectomycorrhizal and saprotrophic agaricoid basidiomycetes show diverse morphological reproductive traits, a phenomenon which has been attributed to their different lifestyles. From previous studies, we know that such differences are also reflected in assembly formation. Regardless of these differences, and assuming that dispersal fitness, predominantly by air movement, is one of the prevalent factors in fungal lifecycles, spores of both guilds should become on average more elongate and smaller with resource depletion. In our study we defined resource depletion as the decrease of living and dead organic biomass due to climate constraints along an elevational gradient in the Bavarian Forest (Germany).
We found that spores of both guilds indeed become more elongate along the resource depletion gradient. Unexpectedly, the ectomycorrhizal assemblages showed larger spores under resource constraints, which could be a survivability trade-off. The spore trait syndrome responses to environmental constraints suggest ecological relevance, i.e. being advantageous in environments with patchily distributed resources.
To deepen our mechanistic understanding of the underlying patterns, we particularly recommend experiments (artificial resource gradient free of confounding effects such as climate), and application of genomics and transcriptomics for elucidating the evolution of spore morphology.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Fungi; Environmental filtering; Dispersal fitness; Resource depletion; Propagule traits; Spore survivability; Fungal guilds |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Ökologie der Pilze > Lehrstuhl Ökologie der Pilze - Univ.-Prof. Dr. Claus Bässler Forschungseinrichtungen > Zentrale wissenschaftliche Einrichtungen > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie |
| Eingestellt am: | 18 Nov 2024 08:42 |
| Letzte Änderung: | 18 Nov 2024 08:42 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/91166 |