Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/250994
COMPARTIR / EXPORTAR:
logo share SHARE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Could fruits modify leaf soluble sugars and determine water-carbon relations in plants?

AutorPérez-Arcoiza, Adrián CSIC ORCID; Hernández Santana, V.; Fernández-Torres, Rut; Pérez-Romero, Luis Felipe; Díaz-Espejo, Antonio CSIC ORCID
Palabras claveWater stress
Non-struetural carbohydrates (NSC)
Stomatal conductance
Photosynthesis
Fruit load
Fecha de publicación7-jul-2021
EditorSociedad Española de Fisiología Vegetal
CitaciónXXIV Reunión de la Sociedad Española de Biología de Plantas y XVII Congreso Hispano-Luso de Biología de Plantas. Book of abstracts: 276-277 (2021)
ResumenWater seareity is one of the main restrietions to aehieve food security for a growing population. Thus, new defieit irrigation strategies are being developed based on plant physiology but surprisingly, little is known on fruit physiology. The reeent results on the importanee on non-struetural earbohydrates (NSC) to faeilitate osmotie adjustment (Blum, 2017) and their differential transport depending on the water stress level (Gersony et al., 2020) eould be useful to explain the effeet of fruil loading on plant water relations but it has not been studied yet. The aim of this work is to study the effeet of the fruit presenee or absenee on the leaves water relations mediated by their effeet on leaf soluble sugar dynamies and thus, on leaf osmotie potential analyzing (i) the regulation of stomatal eonduetanee (gs), net photosynthesis (AN) and leafwater potential ('I'lcar) produeed by fruits and (ii) determine leaf osmotie potential (lt) and NSC dynamies depending on the presenee or absenee of fruits and water stress. The experiment was earried out between July and November 2018 on twelve olive trees. Six of them were well-watered (WW) trees and the rest were water-stressed (WS). In eaeh of these treatments, half had the presenee of fruits (+) and the other half had absenee of fruils (-) (n = 3). AN, gs, 'l'le,r, were measured weekly and lt and NSC eontent were measured in four speeifie moments in eaeh tree. The results showed that WW+ presented higher AN and gs values, lower leaf NSC and lt less negative than WW-, indieating that earbohydrates were being exported to the fruit. Assuming that fruits behave as a earbon sink organ, we also observe that WS+ presented more negative 'l'le,r values than WS-. This response would be modulated by the hydrie treatments, beeause the effeet of AN and gs was not as prominent in WS nor that of the hydrie potential in WW. In eonclusion, our results suggested that fruits can modulate leaf NSC and maintain the earbon and water relations under water stress.
Descripción2 páginas.- 2 referencias.- Poster presentado en el BP2021: XXIV Reunión de la Sociedad Española de Biología de Plantas y XVII Congreso Hispano-Luso de Biología de Plantas, 7 y 8 de julio de 2021. online
URIhttp://hdl.handle.net/10261/250994
ISBN978-84-124005-2-6
Aparece en las colecciones: (IRNAS) Libros y partes de libros




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
Could_fruits_modigy_feaf_BP2021.pdf563,59 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

Page view(s)

71
checked on 28-mar-2024

Download(s)

12
checked on 28-mar-2024

Google ScholarTM

Check

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.