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

Ruiz Valcárcel, Magdalena; Quemada Saenz-Badillos, Miguel; García-García, Rosa María; Carrillo Becerril, Jose Maria y 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.

Descripción

Título: Use of thermographic imaging to screen for drought-tolerant genotypes in Brachypodium distachyon
Autor/es:
  • Ruiz Valcárcel, Magdalena
  • Quemada Saenz-Badillos, Miguel
  • García-García, Rosa María
  • Carrillo Becerril, Jose Maria
  • Benavente Barzana, M. Elena
Tipo de Documento: Artículo
Título de Revista/Publicación: Crop Pasture Sci
Fecha: Enero 2016
Volumen: 67
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Biotecnología - Biología Vegetal
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (12MB) | Vista Previa

Resumen

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.

Más información

ID de Registro: 41266
Identificador DC: http://oa.upm.es/41266/
Identificador OAI: oai:oa.upm.es:41266
Identificador DOI: 10.1071/CP15134
URL Oficial: http://www.publish.csiro.au/nid/40/paper/CP15134.htm
Depositado por: Memoria Investigacion
Depositado el: 20 Jun 2016 14:37
Ultima Modificación: 20 Jun 2016 14:37
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM