Use of thermographic imaging to screen for drought-tolerant genotypes in Brachypodium distachyon

Ruiz Valcárcel, Magdalena and Quemada Saenz-Badillos, Miguel and García-García, Rosa María and Carrillo Becerril, Jose Maria and Benavente Barzana, M. Elena (2016). Use of thermographic imaging to screen for drought-tolerant genotypes in Brachypodium distachyon. "Crop Pasture Sci", v. 67 (n. 1); pp. 99-108. ISSN 1836-0947. https://doi.org/10.1071/CP15134.

Description

Title: Use of thermographic imaging to screen for drought-tolerant genotypes in Brachypodium distachyon
Author/s:
  • Ruiz Valcárcel, Magdalena
  • Quemada Saenz-Badillos, Miguel
  • García-García, Rosa María
  • Carrillo Becerril, Jose Maria
  • Benavente Barzana, M. Elena
Item Type: Article
Título de Revista/Publicación: Crop Pasture Sci
Date: January 2016
ISSN: 1836-0947
Volume: 67
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (12MB) | Preview

Abstract

Thermal imaging has been used to evaluate the response to drought and warm temperatures in a collection of Brachypodium distachyon lines adapted to varied environmental conditions. Thermographic records were able to separate lines from contrasting rainfall regimes. Genotypes from dryer environments showed warmer leaves under water deficit, which suggested that decreased evapotranspiration was related to a more intense stomatal closure. When irrigated and under high temperature conditions, drought-adapted lines showed cooler leaves than lines from wetter zones. The consistent, inverse thermographic response of lines to water stress and heat validates the reliability of this method to assess drought tolerance in this model cereal. It additionally supports the hypothesis that stomatal-based mechanisms are involved in natural variation for drought tolerance in Brachypodium. The study further suggests that these mechanisms are not constitutive but likely related to a more efficient closing response to avoid dehydration in adapted genotypes. Higher leaf temperature under water deficit seems a dependable criterion of drought tolerance, not only in B. distachyon but also in the main cereal crops and related grasses where thermography can facilitate high-throughput preliminary screening of tolerant materials.

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentS2013/ABI-2717UnspecifiedAntonio Vallejo GarcíaSistemas agrarios sostenibles. Manejo de carbono, nitrógeno y agua para optimizar producción y calidad
Government of SpainAGL2012-38345UnspecifiedUnspecifiedMejora genética en trigo blando y en trigo duro: calidad funcional, calidad nutricional y compuestos bioactivos

More information

Item ID: 41266
DC Identifier: http://oa.upm.es/41266/
OAI Identifier: oai:oa.upm.es:41266
DOI: 10.1071/CP15134
Official URL: https://doi.org/10.1071/CP15134
Deposited by: Memoria Investigacion
Deposited on: 20 Jun 2016 14:37
Last Modified: 14 Mar 2019 16:57
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM