Per citar aquest document: http://ddd.uab.cat/record/131608
Climate-induced die-off affects plant–soil–microbe ecological relationship and functioning
Lloret Maya, Francisco (Centre de Recerca Ecològica i Aplicacions Forestals)
Mattana, Stefania (Centre de Recerca Ecològica i Aplicacions Forestals)
Curiel Yuste, Jorge (Centre de Recerca Ecològica i Aplicacions Forestals)

Data: 2015
Resum: This study reports the relationship between the diversity and functioning of fungal and bacterial soil communities with vegetation in Mediterranean woodland that experienced severe die-off after a drought episode. Terminal restriction fragment length polymorfism (TRFLP) was used to describe microbial community structure and diversity five years after the episode in different habitats (Juniperus woodland, shrubland, grassland), when the vegetation had not yet recovered. Vegetation diversity was positively related to TRF bacterial richness under unaffected canopies and was higher in diverse grassland. Fungal TRF richness correlated with vegetation type, being greater in Juniperus woodland. Microbial respiration increased in grassland, whereas microbial biomass, estimated from soil substrate-induced respiration (SIR), decreased with bacterial diversity. Die-off increased bacterial richness and changed bacterial composition, particularly in Juniperus woodland, where herbaceous species increased, while fungal diversity was reduced in Juniperus woodland. Die-off increased microbial respiration rates. The impact on vegetation from extreme weather episodes spread to microbial communities by modifying vegetation composition and litter quantity and quality, particularly as a result of the increase in herbaceous species. Our results suggest that climate-induced die-off triggers significant cascade effects on soil microbial communities, which may in turn further influence ecosystem C dynamics.
Nota: Altres ajuts rebuts per dur a terme aquest projecte: ICTS-Reserva Biológica de Doñana (projects 38/2007, 27/2009, and 11/2013) i Goverment of Madrid (REMEDINAL 2; CM S2009 AMB 1783)
Nota: Número d'acord de subvenció MEC/CGL2009-08101
Nota: Número d'acord de subvenció MICINN/CGL2010-16373
Nota: Número d'acord de subvenció MICINN/CGL2012-32965
Nota: Número d'acord de subvenció MINECO/CGL2013-42271
Nota: Número d'acord de subvenció AGAUR/2009/SGR-00247
Drets: Tots els drets reservats
Llengua: Anglès
Document: article ; recerca ; acceptedVersion
Matèria: Climate change ; Drought episode ; Extreme climatic event ; Microbial diversity ; Soil microbial community ; Microbial soil respiration
Publicat a: FEMS microbiology Ecology, Vol. 91, issue 2 (Feb. 2015) , p. 1-12, ISSN 0168-6496

DOI: 10.1093/femsec/fiu014


Post-print
40 p, 996.0 KB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Articles de recerca
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 Registre creat el 2015-04-16, darrera modificació el 2016-06-20



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