Leaf dehydration is needed to induce abscisic acid accumulation in roots of citrus plants
Impacte
Scholar |
Altres documents de l'autoria: Manzi Fraga, Matías Jesús; Pitarch Bielsa, Marta; Arbona, Vicent; Gomez-Cadenas, Aurelio
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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https://doi.org/10.1016/j.envexpbot.2017.05.004 |
Metadades
Títol
Leaf dehydration is needed to induce abscisic acid accumulation in roots of citrus plantsData de publicació
2017-05-09Editor
ElsevierCita bibliogràfica
MANZI FRAGA, Matías Jesús; PITARCH-BIELSA, Marta; ARBONA MENGUAL, Vicent; GÓMEZ CADENAS, Aurelio. Leaf dehydration is needed to induce abscisic acid accumulation in roots of citrus plants. Environmental and Experimental Botany (2017), v. 139, p. 116-126Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0098847217301089Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The root system is the main organ involved in the water uptake and it is assumed that it perceives soil dehydration, triggering water stress responses at the entire plant level, including abscisic acid (ABA) accumul ... [+]
The root system is the main organ involved in the water uptake and it is assumed that it perceives soil dehydration, triggering water stress responses at the entire plant level, including abscisic acid (ABA) accumulation. However, several lines of evidence demonstrate that leaves directly adjust their water status (and induce increases in ABA levels) in response to changes in the evaporative demand. To evaluate the influence of leaf water status on ABA accumulation in roots, the canopy of citrus plants was kept at high humidity while roots were dehydrated. Leaves and roots of completely dehydrated plants increased levels of ABA whereas plants with turgid leaves did not accumulate ABA either in leaves or in roots. Furthermore, in dehydrated roots, the expression of several key genes involved in carotenoid and ABA biosynthetic pathways such as CsβCHX1 and CsNCED1 was strongly affected by the water status of leaves whereas water availability in roots showed a marginal influence. Overall, results confirm that leaves are a relevant source of ABA for roots during dehydration and also demonstrate that leaf-dehydration is required to trigger ABA-induced responses in roots. [-]
Publicat a
Environmental and Experimental Botany (2017), v. 139Proyecto de investigación
1) Ministerio de Economía (MINECO) and Universitat Jaume I through grants no. AGL2016-76574-R and UJI- B2016-23/UJI-B2016-24; 2) “ Santiago Grisolia ” fellowship from Generalitat Valenciana (Spain).Drets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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