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Authordc.contributor.authorRámila, Consuelo 
Authordc.contributor.authorContreras, Samuel 
Authordc.contributor.authorDi Domenico, Camila 
Authordc.contributor.authorMolina Montenegro, Marco A. 
Authordc.contributor.authorVega, Andrea 
Authordc.contributor.authorHandford, Michael 
Authordc.contributor.authorBonilla, Carlos 
Cita de ítemdc.identifier.citationJournal of Hazardous Materials 317 (2016) 476–484es_ES
Abstractdc.description.abstractPhytoremediation is a promising technology to tackle boron toxicity, which restricts agricultural activities in many arid and semi-arid areas. Puccinellia frigida is a perennial grass that was reported to hyperaccumulate boron in extremely boron-contaminated sites. To further investigate its potential for phytoremediation, we determined its response to boron stress under controlled conditions (hydroponic culture). Also, as a first step towards understanding the mechanisms underlying its extreme tolerance, we evaluated the presence and expression of genes related with boron tolerance. We found that P. frigida grew normally even at highly toxic boron concentrations in the medium (500 mg/L), and within its tissues (>5000 mg/kg DW). We postulate that the strategies conferring this extreme tolerance involve both restricting boron accumulation and an internal tolerance mechanism; this is consistent with the identification of putative genes involved in both mechanisms, including the expression of a possible boron efflux transporter. We also found that P. frigida hyperaccumulated boron over a wide range of boron concentrations. We propose that P. frigida could be used for boron phytoremediation strategies in places with different soil characteristics and boron concentrations. Further studies should pave the way for the development of clean and low-cost solutions to boron toxicity problems. (C) 2016 Elsevier B.V. All rights reservedes_ES
Patrocinadordc.description.sponsorshipChile's National Commission for Scientific and Technological Research (CONICYT-FONDAP project) 1510020 School of Engineering of the Pontificia Universidad Catolica de Chile (Postdoctoral Fellowship)es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceJournal of Hazardous Materialses_ES
Keywordsdc.subjectPuccinellia frigidaes_ES
Títulodc.titleBoron stress response and accumulation potential of the extremely tolerant species Puccinellia frigidaes_ES
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación ISIes_ES

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Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile