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dc.contributor.author
Kogan, Marcelo Javier
dc.contributor.author
Kristoff, Gisela
dc.contributor.author
Benavides, Maria Patricia
dc.contributor.author
Tomaro, Maria Lujan
dc.date.available
2018-03-19T17:24:48Z
dc.date.issued
2000-12
dc.identifier.citation
Kogan, Marcelo Javier; Kristoff, Gisela; Benavides, Maria Patricia; Tomaro, Maria Lujan; Effect of pre-treatment with ethanolamine on the response of Helianthus annuus L. to salt stress; Springer; Plant Growth Regulation; 30; 1; 12-2000; 87-94
dc.identifier.issn
0167-6903
dc.identifier.uri
http://hdl.handle.net/11336/39224
dc.description.abstract
The accumulation of compatible solutes is one of the strategies that plants have developed to tolerate salt stress. Proline and betaine are the main metabolites that accumulate in various species of higher plants in response to salt stress. In Helianthus annuus L., pre-treatment of seeds with ethanolamine led to enhanced seedling tolerance to conditions of saline stress during germination, as evidenced by the greater growth of pretreated seedlings (EAS group) versus untreated seedlings (S group), evaluated through such parameters as length, water and chlorophyll content. During the germination period, a considerable increase was observed in proline levels (up to 300%) in seedlings subjected to saline stress, whereas in the EAS group, the proline increment was much smaller (20%). Starting from the fourth day of germination, betaine levels in seedlings pretreated with ethanolamine and then with water (EAW group) and in EAS showed a significant increase versus C (control) and S seedlings, possibly because such a precursor promotes betaine biosynthesis. This could be responsible for the enhanced growth observed in EAS versus S seedlings, as well as for preventing the decrease in chlorophyll content in the EAS group. The accumulation of betaine seems to correlate with the greater tolerance of these seedlings against stress induced by sodium chloride.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Betaine
dc.subject
Ethanolamine
dc.subject
Growth
dc.subject
Helianthus Annuus L.
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Salt Stress
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Effect of pre-treatment with ethanolamine on the response of Helianthus annuus L. to salt stress
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-03-16T15:12:39Z
dc.identifier.eissn
1573-5087
dc.journal.volume
30
dc.journal.number
1
dc.journal.pagination
87-94
dc.journal.pais
Alemania
dc.journal.ciudad
Netherlands
dc.description.fil
Fil: Kogan, Marcelo Javier. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Vegetal; Argentina
dc.description.fil
Fil: Kristoff, Gisela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Benavides, Maria Patricia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Tomaro, Maria Lujan. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Plant Growth Regulation
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1023/A:1006360912089
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1023/A:1006360912089


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  • Articulos(IQUIFIB) [377]
    Articulos de INST.DE QUIMICA Y FISICO-QUIMICA BIOLOGICAS "PROF. ALEJANDRO C. PALADINI"

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