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dc.contributor.author
Pereyra, María Alejandra
dc.contributor.author
Zalazar, Carlos Antonio
dc.contributor.author
Barassi, Carlos Alberto
dc.date.available
2021-09-09T11:49:20Z
dc.date.issued
2006-11
dc.identifier.citation
Pereyra, María Alejandra; Zalazar, Carlos Antonio; Barassi, Carlos Alberto; Root phospholipids in Azospirillum-inoculated wheat seedlings exposed to water stress; Elsevier France-Editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 44; 11-12; 11-2006; 873-879
dc.identifier.issn
0981-9428
dc.identifier.uri
http://hdl.handle.net/11336/139965
dc.description.abstract
Azospirillum–plant association is accompanied by biochemical changes in roots which, in turn, promote plant-growth and tolerance to water stress. To shed light on the possible factors underlying these effects, roots from Azospirillum brasilense Sp245-inoculated Triticum aestivum seedlings growing in darkness under osmotic stress were analyzed for phospholipid (PL) composition, fatty acid (FA) distribution profiles and degree of unsaturation of the major PL classes. Azospirillum inoculation diminished ion leakage and increased 2,3,5-tripheniltetrazolium reducing ability in roots of well irrigated and water-stressed wheat seedlings. Total root PL content remained unaltered in all treatments. Six PL classes were detected, phosphatidylcholine (PC) and phosphatidylethanolamine (PE) comprising over 80% of the total. While water stress increased PC content and diminished that of PE, none of these changes were observed either under Azospirillum inoculation alone or when both treatments were combined. The major FAs found in both PC and PE were 16:0, 18:0, 18:1, 18:2, and 18:3. Higher PC and lower PE unsaturation than in well irrigated controls were observed in roots from Azospirillum-inoculated, water-stressed seedlings. Azospirillum inoculation could contribute to protect wheat seedlings from water stress through changes in the FA distribution profiles of PC and PE major root phospholipids.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier France-Editions Scientifiques Medicales Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AZOSPIRILLUM
dc.subject
FATTY ACIDS
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PHOSPHOLIPIDS
dc.subject
ROOTS
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WATER STRESS
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WHEAT
dc.subject.classification
Otras Agricultura, Silvicultura y Pesca
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Root phospholipids in Azospirillum-inoculated wheat seedlings exposed to water 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
2020-09-03T19:25:10Z
dc.journal.volume
44
dc.journal.number
11-12
dc.journal.pagination
873-879
dc.journal.pais
Francia
dc.description.fil
Fil: Pereyra, María Alejandra. Universidad Nacional de Mar del Plata; Argentina
dc.description.fil
Fil: Zalazar, Carlos Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Lactología Industrial. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Lactología Industrial; Argentina
dc.description.fil
Fil: Barassi, Carlos Alberto. Universidad Nacional de Mar del Plata; Argentina
dc.journal.title
Plant Physiology and Biochemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0981942806001756
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.plaphy.2006.10.020
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