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Title (Primary) Ecological and functional adaptations to water management in a semiarid agroecosystem: a soil metaproteomics approach
Author Starke, R.; Bastida, F.; Abadía, J.; García, C.; Nicolás, E.; Jehmlich, N.;
Journal Scientific Reports
Year 2017
Department MOLSYB;
Volume 7
Language englisch;
POF III (all) T41;
Supplements https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-017-09973-w/MediaObjects/41598_2017_9973_MOESM1_ESM.pdf
Keywords Agroecology; Proteomic analysis
UFZ wide themes RU3;
Abstract Climate change models point to a decrease in water availability in semiarid areas that would compromise the maintenance of sustainable agriculture. Here, we used a grapefruit agroecosystem model to evaluate the responses of the active soil microbial community – as a microbial subset directly involved in soil functionality- undergoing strategies to cope with the low water availability in south-east Spain. For this purpose, we tested the impacts of: (i) water quality: transfer-water from a river (TW) or reclaimed-water from a wastewater-treatment plant (RW); and (ii) water quantity: continuous optimal amount of water or reduced irrigation (RDI) in the temporal frame when the crop is less sensitive; and their interactions. Metaproteomics revealed that the phylogenetic diversity of the active community and its functional diversity were lowered in soils with RW. RDI lowered soil respiration and functional diversity while the phylogenetic diversity remained constant. The reestablishment of full irrigation after RDI led to a recovery of soil respiration that was accompanied by an enhanced abundance of resilient bacterial populations. Bacterial populations displayed molecular mechanisms against water stress that have been conserved evolutionarily in plants. Protein-based studies shed light on ecological and functional mechanisms that govern the adaptive responses of soil microbial communities to climate-change friendly water management.
ID 19212
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=19212
Starke, R., Bastida, F., Abadía, J., García, C., Nicolás, E., Jehmlich, N. (2017):
Ecological and functional adaptations to water management in a semiarid agroecosystem: a soil metaproteomics approach
Sci. Rep. 7 , art. 10221