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dc.contributor.author
Llanes, Analia Susana
dc.contributor.author
Masciarelli, Oscar Alberto
dc.contributor.author
Luna, Maria Virginia
dc.date.available
2018-01-25T20:44:53Z
dc.date.issued
2014-11
dc.identifier.citation
Llanes, Analia Susana; Masciarelli, Oscar Alberto; Luna, Maria Virginia; Growth responses to sulfate and chloride are related to different phytohormone profiles in the halophyte Prosopis strombulifera; United Arab Emirates University. College of Food and Agriculture; Emirates Journal of Food and Agriculture; 26; 12; 11-2014; 1097-1113
dc.identifier.issn
2079-052X
dc.identifier.uri
http://hdl.handle.net/11336/34646
dc.description.abstract
In this study, the profile of plant phytohormones traditionally considered as plant growth promoters (GA1, GA3, GA4, IAA and Z) was determined in roots and leaves of the halophyte Prosopis strombulifera grown hydroponically in iso-osmotic solutions of NaCl, Na2SO4 and their mixture. Hormonal levels were correlated with growth parameters and ABA levels. Different sodium salts in the medium differentially affected the synthesis of these compounds. NaCl treated plants showed the greatest accumulation of GA4 and GA1 and lower levels of their metabolites GA8 and GA34 both in root and leaves, in coincidence with the optimum growth observed at ?o -1.9 Mpa this response was also observed at ?o -2.6 MPa. IAA level was unaltered in these plants while Z content was higher in roots than in leaves. In contrast, both leaves and roots from Na2SO4 treated plants showed lower GA1 and GA4 and increased GA8 and GA34 levels at high salinity. High levels of IAA were found in roots of these plants, but the ABA/IAA ratio increased with increasing salt concentrations in the culture medium. This pattern was also observed in the high ABA/GAs ratios. Z levels were very low in all salt treatments. The results of this study show that the halophytic growth under NaCl treatment is mainly regulated by GA1 and GA4 and low relative levels of ABA and IAA. The toxicity of sulfate alters this pattern reversing the ratio ABA/GAs and increasing the synthesis of IAA in conjunction with increased lateral root formation. In bisaline-treated plants intermediate values were observed in the levels of these phytohormones as compared to monosaline treatment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
United Arab Emirates University. College of Food and Agriculture
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Halophyte
dc.subject
Nacl
dc.subject
Na2so4
dc.subject
Phytohormone
dc.subject
Prosopis Strombulifera
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Growth responses to sulfate and chloride are related to different phytohormone profiles in the halophyte Prosopis strombulifera
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-24T14:44:37Z
dc.identifier.eissn
2079-0538
dc.journal.volume
26
dc.journal.number
12
dc.journal.pagination
1097-1113
dc.journal.pais
Emiratos Árabes Unidos
dc.description.fil
Fil: Llanes, Analia Susana. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Masciarelli, Oscar Alberto. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Luna, Maria Virginia. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Emirates Journal of Food and Agriculture
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.9755/ejfa.v26i12.19121
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.ejfa.me/index.php/journal/article/view/624
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