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dc.contributor.author
Piovan, María Julia
dc.contributor.author
Pratolongo, Paula Daniela
dc.contributor.author
Donath, Tobias W.
dc.contributor.author
Loydi, Alejandro
dc.contributor.author
Eckstein, Rolf Lutz
dc.date.available
2020-01-28T21:24:58Z
dc.date.issued
2019-05
dc.identifier.citation
Piovan, María Julia; Pratolongo, Paula Daniela; Donath, Tobias W.; Loydi, Alejandro; Eckstein, Rolf Lutz; Germination response to osmotic potential, osmotic agents, and temperature of five halophytes occurring along a salinity gradient; University of Chicago Press; International Journal of Plant Sciences; 180; 4; 5-2019; 345-355
dc.identifier.issn
1058-5893
dc.identifier.uri
http://hdl.handle.net/11336/96080
dc.description.abstract
Premise of research. Halophyte species grow where salt concentrations are high. Still, their germination may be affected by salts, either by creating an osmotic potential that prevents water uptake or by dissociating in ions that can cause different grades of toxicity. With the increase of salinized areas, it becomes important to understand the behavior of these species. Methodology. We studied how the germination of five halophyte species that occur along a salinity gradient in the Bahía Blanca coastal zone, Atriplex undulata, Cyclolepis genistoides, Allenrolfea patagonica, Sarcocornia perennis, and Heterostachys ritteriana, responds to variations in osmotic agents, osmotic potential, and temperature. Seeds were exposed to different osmotic potentials using NaCl (neutral salt), Na2CO3 (alkaline salt), and mannitol solutions in a germination chamber experiment. Germination was recorded during 42 d. Germination percentage, mean germination time, and synchrony were calculated. Pivotal results. Our experimental results showed that for the five halophyte species under study, germination was mostly driven by osmotic potentials and osmotic agents. At high osmotic potential, the germination response did not differ significantly from controls, except for Allenrolfea and Cyclolepis, which showed lower germination when treated with Na2CO3. Low osmotic potentials and Na2CO3 were detrimental to germination, reflected by lower germination percentages, higher mean germination times, and lower synchrony. Conclusions. In general, the response to the alkaline salt was more negative than that to the neutral salt or mannitol, regardless of the species. Each species showed a different response to the salts under study, and this response matched well with the distribution of species along the salinity gradient observed in the field.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
University of Chicago Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MANNITOL
dc.subject
NA2CO3
dc.subject
NACL
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SALT TOLERANT
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SEMIARID
dc.subject.classification
Ciencias de las Plantas, Botánica
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Germination response to osmotic potential, osmotic agents, and temperature of five halophytes occurring along a salinity gradient
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-01-13T14:39:59Z
dc.identifier.eissn
1537-5315
dc.journal.volume
180
dc.journal.number
4
dc.journal.pagination
345-355
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Chicago
dc.description.fil
Fil: Piovan, María Julia. Justus-Liebig-University-Giessen; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
dc.description.fil
Fil: Pratolongo, Paula Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
dc.description.fil
Fil: Donath, Tobias W.. Kiel Univesity; Alemania
dc.description.fil
Fil: Loydi, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Kiel Univesity; Alemania
dc.description.fil
Fil: Eckstein, Rolf Lutz. Karlstad University; Suecia
dc.journal.title
International Journal of Plant Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/10.1086/702663
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1086/702663
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