000844639 001__ 844639
000844639 005__ 20210129233021.0
000844639 0247_ $$2doi$$a10.1016/j.soilbio.2017.10.026
000844639 0247_ $$2ISSN$$a0038-0717
000844639 0247_ $$2ISSN$$a1879-3428
000844639 0247_ $$2WOS$$aWOS:000424957100008
000844639 0247_ $$2altmetric$$aaltmetric:29348852
000844639 037__ $$aFZJ-2018-02034
000844639 082__ $$a570
000844639 1001_ $$00000-0002-1482-4209$$aJones, Davey L.$$b0$$eCorresponding author
000844639 245__ $$aMoisture activation and carbon use efficiency of soil microbial communities along an aridity gradient in the Atacama Desert
000844639 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2018
000844639 3367_ $$2DRIVER$$aarticle
000844639 3367_ $$2DataCite$$aOutput Types/Journal article
000844639 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1521707513_31146
000844639 3367_ $$2BibTeX$$aARTICLE
000844639 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000844639 3367_ $$00$$2EndNote$$aJournal Article
000844639 520__ $$aDue to their extreme aridity, high rate of UV irradiation and low soil carbon (C) content, the soils of the Atacama Desert represent one of the world's most hostile environments for microbial life and its survival. Although infrequent, climatic conditions may, however, prevail which temporarily remove these stresses and allow life to briefly flourish. In this study we investigated the response of soil microbial communities to water and C availability across an aridity gradient (semi-arid, arid, hyper-arid) within the Atacama Desert. We simulated the impact of hyper-dry spells, humid fogs and precipitation events on the activation of the microbial community and the subsequent mineralization of low (glucose) and high (plant residues) molecular weight C substrates. Our results showed that mineralization rate followed the trend: semi-arid > arid > hyper-arid. Some glucose mineralization was apparent under hyper-arid conditions (water activity, aw = 0.05), although this was 10-fold slower than under humid conditions and ca. 200-fold slower than under wet conditions. A lag phase in CO2 production after glucose-C addition in the hyper-arid soils suggested that mineralization was limited by the low microbial biomass in these soils. No lag phase was apparent in the corresponding semi-arid or arid soils. In contrast, the breakdown of the plant residues was initially much slower than for glucose and involved a much longer lag phase in all soils, suggesting that mineralization was limited by low exoenzyme activity, particularly in the humid and hyper-dry soils. Our results also showed that microbial C use efficiency followed the trend: hyper-arid > arid > semi-arid. In conclusion, we have shown that even under hyper-arid conditions, very low levels of microbial activity and C turnover do occur. Further, the microbial communities are capable of rapidly responding to available C once water becomes more abundant, however, this response is both biomass and metabolically limited in hyper-arid soils.
000844639 536__ $$0G:(DE-HGF)POF3-255$$a255 - Terrestrial Systems: From Observation to Prediction (POF3-255)$$cPOF3-255$$fPOF III$$x0
000844639 588__ $$aDataset connected to CrossRef
000844639 7001_ $$0P:(DE-HGF)0$$aOlivera-Ardid, Sara$$b1
000844639 7001_ $$0P:(DE-Juel1)129484$$aKlumpp, Erwin$$b2
000844639 7001_ $$0P:(DE-HGF)0$$aKnief, Claudia$$b3
000844639 7001_ $$0P:(DE-HGF)0$$aHill, Paul W.$$b4
000844639 7001_ $$0P:(DE-HGF)0$$aLehndorff, Eva$$b5
000844639 7001_ $$0P:(DE-Juel1)145865$$aBol, Roland$$b6
000844639 773__ $$0PERI:(DE-600)1498740-5$$a10.1016/j.soilbio.2017.10.026$$gVol. 117, p. 68 - 71$$p68 - 71$$tSoil biology & biochemistry$$v117$$x0038-0717$$y2018
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.pdf$$yRestricted
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.gif?subformat=icon$$xicon$$yRestricted
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.jpg?subformat=icon-1440$$xicon-1440$$yRestricted
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.jpg?subformat=icon-180$$xicon-180$$yRestricted
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.jpg?subformat=icon-640$$xicon-640$$yRestricted
000844639 8564_ $$uhttps://juser.fz-juelich.de/record/844639/files/1-s2.0-S0038071717306284-main.pdf?subformat=pdfa$$xpdfa$$yRestricted
000844639 909CO $$ooai:juser.fz-juelich.de:844639$$pVDB:Earth_Environment$$pVDB
000844639 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129484$$aForschungszentrum Jülich$$b2$$kFZJ
000844639 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145865$$aForschungszentrum Jülich$$b6$$kFZJ
000844639 9131_ $$0G:(DE-HGF)POF3-255$$1G:(DE-HGF)POF3-250$$2G:(DE-HGF)POF3-200$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bErde und Umwelt$$lTerrestrische Umwelt$$vTerrestrial Systems: From Observation to Prediction$$x0
000844639 9141_ $$y2018
000844639 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz
000844639 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bSOIL BIOL BIOCHEM : 2015
000844639 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000844639 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000844639 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database
000844639 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000844639 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000844639 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000844639 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000844639 915__ $$0StatID:(DE-HGF)1060$$2StatID$$aDBCoverage$$bCurrent Contents - Agriculture, Biology and Environmental Sciences
000844639 915__ $$0StatID:(DE-HGF)1040$$2StatID$$aDBCoverage$$bZoological Record
000844639 915__ $$0StatID:(DE-HGF)1050$$2StatID$$aDBCoverage$$bBIOSIS Previews
000844639 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000844639 9201_ $$0I:(DE-Juel1)IBG-3-20101118$$kIBG-3$$lAgrosphäre$$x0
000844639 980__ $$ajournal
000844639 980__ $$aVDB
000844639 980__ $$aI:(DE-Juel1)IBG-3-20101118
000844639 980__ $$aUNRESTRICTED