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dc.contributor.author
González, Juan Antonio
dc.contributor.author
Prado, Fernando Eduardo
dc.contributor.author
Piacentini, Ruben Dario Narciso
dc.date.available
2017-02-02T21:44:06Z
dc.date.issued
2014-06
dc.identifier.citation
González, Juan Antonio; Prado, Fernando Eduardo; Piacentini, Ruben Dario Narciso; Atmospheric dust accumulation on native and non-native species: effects on gas exchange parameters; Amer Soc Agronomy; Journal Of Environmental Quality; 43; 3; 6-2014; 801-808
dc.identifier.issn
0047-2425
dc.identifier.uri
http://hdl.handle.net/11336/12430
dc.description.abstract
Plants are continuously exposed to atmospheric particulate matter (dust), and their leaves are the main receptors of deposited dust. The objective of this study was to assess the effects of dust deposition on leaf gas exchange parameters of 17 native and non-native tree and shrub species growing in Gran San Miguel de Tucumán in northwestern Argentina. Maximum assimilation rate (Amax), stomatal conductance (gs ), transpiration rate (E), internal CO2 concentration (Ci ), and instantaneous water-use efficiency (WUE) were measured in cleaned leaves (CL) and dusted leaves (DL) of different species on November 2010, July 2011, and September 2011. In almost all studied species, gas exchange parameters were significantly affected by dust deposition. Values for Amax, E, and gs of DL were significantly reduced in 11, 12, and 14 species compared with CL. Morphological leaf traits seem to be related to Amax reduction. Indeed, Mespilus germanica L. and Mespilus germanica species with pubescent leaves and thick ribs showed the highest reduction percentages. Contrarily, Ci and WUE were increased in DL but were less responsive to dust deposition than other parameters. Increases of Ci and WUE were significant in 5 and 11 species, respectively. Correlation analyses between Amax/gs , Amax/E, and E/gs pairs showed significant positive linear correlations in CL and DL of many studied species, including small and tall plants. These results suggest that leaf stomatal factors and shade-induced effect by accumulated dust are primarily responsible for the observed reductions in photosynthesis rate of DL.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Amer Soc Agronomy
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Atmospheric
dc.subject
Dust
dc.subject
Leaves
dc.subject
Photosynthesis
dc.subject.classification
Ciencias Medioambientales
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Atmospheric dust accumulation on native and non-native species: effects on gas exchange parameters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-31T18:28:50Z
dc.identifier.eissn
1537-2537
dc.journal.volume
43
dc.journal.number
3
dc.journal.pagination
801-808
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Madison
dc.description.fil
Fil: González, Juan Antonio. Fundación Miguel Lillo; Argentina
dc.description.fil
Fil: Prado, Fernando Eduardo. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Catedra de Fisiologia Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Piacentini, Ruben Dario Narciso. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
dc.journal.title
Journal Of Environmental Quality
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2134/jeq2013.08.0308
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/jeq/abstracts/43/3/801


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