Suche nach Personen

plus im Publikationsserver
plus bei Google Scholar

Bibliografische Daten exportieren
 

Drought-Induced Stress Priming in Two Distinct Filamentous Saprotrophic Fungi

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00005108
URN zum Zitieren der Version auf EPub Bayreuth: urn:nbn:de:bvb:703-epub-5108-7

Titelangaben

Guhr, Alexander ; Kircher, Sophia:
Drought-Induced Stress Priming in Two Distinct Filamentous Saprotrophic Fungi.
In: Microbial Ecology. Bd. 80 (2020) . - S. 27-33.
ISSN 1432-184X
DOI der Verlagsversion: https://doi.org/10.1007/s00248-019-01481-w

Volltext

[thumbnail of Guhr-Kircher2020_Article_Drought-InducedStressPrimingIn.pdf]
Format: PDF
Name: Guhr-Kircher2020_Article_Drought-InducedStressPrimingIn.pdf
Version: Veröffentlichte Version
Verfügbar mit der Lizenz Creative Commons BY 4.0: Namensnennung
Download (557kB)

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
Ohne Angabe
GU 1818/1-1

Projektfinanzierung: Deutsche Forschungsgemeinschaft

Abstract

Sessile organisms constantly face environmental fluctuations and especially drought is a common stressor. One adaptive mechanism is “stress priming,” the ability to cope with a severe stress (“triggering”) by retaining information from a previous mild stress event (“priming”). While plants have been extensively investigated for drought-induced stress priming, no information is available for saprotrophic filamentous fungi, which are highly important for nutrient cycles. Here, we investigated the potential for drought-induced stress priming of one strain each of two ubiquitous species, Neurospora crassa and Penicillium chrysogenum. A batch experiment with 4 treatments was conducted on a sandy soil: exposure to priming and/or triggering as well as non-stressed controls. A priming stress was caused by desiccation to pF 4. The samples were then rewetted and after 1-, 7-, or 14-days of recovery triggered (pF 6). After triggering, fungal biomass, respiration, and β-glucosidase activity were quantified. P. chrysogenum showed positive stress priming effects. After 1 day of recovery, biomass as well as β-glucosidase activity and respiration were 0.5 to 5 times higher during triggering. Effects on biomass and activity decreased with prolonged recovery but lasted for 7 days and minor effects were still detectable after 14 days. Without triggering, stress priming had a temporary negative impact on biomass but this reversed after 14 days. For N. crassa, no stress priming effect was observed on the tested variables. The potential for drought-induced stress priming seems to be species specific with potentially high impact on composition and activity of fungal communities considering the expected increase of drought events.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Keywords: Drought stress; Saprotrophic filamentous fungi; Stress memory; Stress priming
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenökologie
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Sprache: Englisch
Titel an der UBT entstanden: Ja
URN: urn:nbn:de:bvb:703-epub-5108-7
Eingestellt am: 24 Sep 2020 10:18
Letzte Änderung: 24 Sep 2020 10:20
URI: https://epub.uni-bayreuth.de/id/eprint/5108

Downloads

Downloads pro Monat im letzten Jahr