Rock weathering creates oases of life in a High Arctic desert (Articolo in rivista)

Type
Label
  • Rock weathering creates oases of life in a High Arctic desert (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1111/j.1462-2920.2009.02059.x (literal)
Alternative label
  • Sara Borin; Stefano Ventura; Fulvia Tambone; Francesca Mapelli; Florence Schubotz; Lorenzo Brusetti; Barbara Scaglia; Luigi P. D'Acqui; Bjørn Solheim; Silvia Turicchia; Ramona Marasco; Kai-Uwe Hinrichs; Franco Baldi; Fabrizio Adani; Daniele Daffonchio (2010)
    Rock weathering creates oases of life in a High Arctic desert
    in Environmental microbiology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Sara Borin; Stefano Ventura; Fulvia Tambone; Francesca Mapelli; Florence Schubotz; Lorenzo Brusetti; Barbara Scaglia; Luigi P. D'Acqui; Bjørn Solheim; Silvia Turicchia; Ramona Marasco; Kai-Uwe Hinrichs; Franco Baldi; Fabrizio Adani; Daniele Daffonchio (literal)
Pagina inizio
  • 293 (literal)
Pagina fine
  • 303 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 12 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Food Science and Microbiology, University of Milan, I-20133 Milan, Italy. IIstitute of Ecosystem Study, CNR, I-50019 Sesto Fiorentino, Italy. Department of Crop Science, University of Milan, I-20133 Milan, Italy. Department of Geosciences, University of Bremen, D-28359 Bremen, Germany. Department of Biology, University of Tromsø, N-9037 Tromsø, Norway. Department of Environmental Sciences, University of Venice 'Ca' Foscari', I-30121 Venice, Italy. (literal)
Titolo
  • Rock weathering creates oases of life in a High Arctic desert (literal)
Abstract
  • During primary colonization of rock substrates by plants, mineral weathering is strongly accelerated under plant roots, but little is known on how it affects soil ecosystem development before plant establishment. Here we show that rock mineral weathering mediated by chemolithoautotrophic bacteria is associated to plant community formation in sites recently released by permanent glacier ice cover in the Midtre Lovénbreen glacier moraine (78°53'N), Svalbard. Increased soil fertility fosters growth of prokaryotes and plants at the boundary between sites of intense bacterial mediated chemolithotrophic iron-sulfur oxidation and pH decrease, and the common moraine substrate where carbon and nitrogen are fixed by cyanobacteria. Microbial iron oxidizing activity determines acidity and corresponding fertility gradients, where water retention, cation exchange capacity and nutrient availability are increased. This fertilization is enabled by abundant mineral nutrients and reduced forms of iron and sulfur in pyrite minerals within a conglomerate type of moraine rock. Such an interaction between microorganisms and moraine minerals determines a peculiar, not yet described model for soil genesis and plant ecosystem formation with potential past and present analogues in other harsh environments with similar geochemical settings. (literal)
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