Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Overproduction of ABA in rootstocks alleviates salinity stress in tomato shoots

Tools
- Tools
+ Tools

Martínez‐Andújar, Cristina, Martínez‐Pérez, Ascensión, Albacete, Alfonso, Martínez‐Melgarejo, Purificación A., Dodd, Ian C., Thompson, Andrew J., Mohareb, Fady, Estelles‐Lopez, Lucia, Kevei, Zoltan, Ferrández‐Ayela, Almudena, Pérez‐Pérez, José Manuel, Gifford, Miriam L. and Pérez‐Alfocea, Francisco (2021) Overproduction of ABA in rootstocks alleviates salinity stress in tomato shoots. Plant, Cell & Environment, 44 (9). pp. 2966-2986. doi:10.1111/pce.14121

[img]
Preview
PDF
WRAP-Overproduction-ABA-rootst-ocks-alleviates-salinity-stressin-tomato-shoots-2021.pdf - Published Version - Requires a PDF viewer.
Available under License Creative Commons Attribution 4.0.

Download (4Mb) | Preview
Official URL: https://doi.org/10.1111/pce.14121

Request Changes to record.

Abstract

To determine whether root‐supplied ABA alleviates saline stress, tomato (Solanum lycopersicum L. cv. Sugar Drop) was grafted onto two independent lines (NCED OE) overexpressing the SlNCED1 gene (9‐cis‐epoxycarotenoid dioxygenase) and wild type rootstocks. After 200 days of saline irrigation (EC = 3.5 dS m−1), plants with NCED OE rootstocks had 30% higher fruit yield, but decreased root biomass and lateral root development. Although NCED OE rootstocks upregulated ABA‐signalling (AREB, ATHB12), ethylene‐related (ACCs, ERFs), aquaporin (PIPs) and stress‐related (TAS14, KIN, LEA) genes, downregulation of PYL ABA receptors and signalling components (WRKYs), ethylene synthesis (ACOs) and auxin‐responsive factors occurred. Elevated SlNCED1 expression enhanced ABA levels in reproductive tissue while ABA catabolites accumulated in leaf and xylem sap suggesting homeostatic mechanisms. NCED OE also reduced xylem cytokinin transport to the shoot and stimulated foliar 2‐isopentenyl adenine (iP) accumulation and phloem transport. Moreover, increased xylem GA3 levels in growing fruit trusses were associated with enhanced reproductive growth. Improved photosynthesis without changes in stomatal conductance was consistent with reduced stress sensitivity and hormone‐mediated alteration of leaf growth and mesophyll structure. Combined with increases in leaf nutrients and flavonoids, systemic changes in hormone balance could explain enhanced vigour, reproductive growth and yield under saline stress.

Item Type: Journal Article
Subjects: Q Science > QH Natural history
Q Science > QK Botany
S Agriculture > SB Plant culture
Divisions: Faculty of Science > Life Sciences (2010- )
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Abscisic acid, Plant hormones, Roots (Botany) , Gene Expression, Tomato -- Rootstocks, Plants -- Effect of salts on
Journal or Publication Title: Plant, Cell & Environment
Publisher: John Wiley & Sons, Ltd.
ISSN: 1365-3040
Official Date: September 2021
Dates:
DateEvent
September 2021Published
30 May 2021Available
21 May 2021Accepted
Volume: 44
Number: 9
Page Range: pp. 2966-2986
DOI: 10.1111/pce.14121
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
289365Seventh Framework Programmehttp://dx.doi.org/10.13039/100011102
RTI2018-099113-B-I00[MINECO] Ministerio de Economía y Competitividadhttp://dx.doi.org/10.13039/501100003329
RTI2018-099113-B-I00[ERDF] European Regional Development Fundhttp://dx.doi.org/10.13039/501100008530
Related URLs:
  • http://creativecommons.org/licenses/by/4...

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us