Assessment of the ozone sensitivity of 22 native plant species from mediterranean annual pastures based on visible injury

Bermejo, V.; Gimeno, Benjamín; Sanz, J.; Torre Llorente, Daniel de la y Gil, J.M. (2003). Assessment of the ozone sensitivity of 22 native plant species from mediterranean annual pastures based on visible injury. "Atmospheric Environment", v. 37 (n. 33); pp. 4667-4677. ISSN 1352-2310. https://doi.org/10.1016/j.atmosenv.2003.07.002.

Descripción

Título: Assessment of the ozone sensitivity of 22 native plant species from mediterranean annual pastures based on visible injury
Autor/es:
  • Bermejo, V.
  • Gimeno, Benjamín
  • Sanz, J.
  • Torre Llorente, Daniel de la
  • Gil, J.M.
Tipo de Documento: Artículo
Título de Revista/Publicación: Atmospheric Environment
Fecha: Octubre 2003
Volumen: 37
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Biología Vegetal [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Ozone (O3) phytototoxicity has been reported on a wide range of plantspecies, inducing the appearance of specific foliar injury or increasing leaf senescence. No information regarding the sensitivity of plantspecies from dehesa Mediterranean grasslands has been provided in spite of their great biological diversity. A screening study was carried out in open-top chambers (OTCs) to assess the O3-sensitivity of 22 representative therophytes of these ecosystems based on the appearance and extent of foliar injury. A distinction was made between specific O3injury and non-specific discolorations. Three O3 treatments (charcoal-filtered air, non-filtered air and non-filtered air supplemented with 40 nl l−1 O3 during 5 days per week) and three OTCs per treatment were used. The Papilionaceae species were more sensitive to O3 than the Poaceae species involved in the experiment since ambient levels induced foliar symptoms in 67% and 27%, respectively, of both plant families. An O3-sensitivity ranking of the species involved in the assessment is provided, which could be useful for bioindication programmes in Mediterranean areas. The assessed Trifoliumspecies were particularly sensitive since foliar symptoms were apparent in association with O3 accumulated exposures well below the current critical level for the prevention of this kind of effect. The exposure indices involving lower cut-off values (i.e. 30 nl l−1) were best related with the extent of O3-induced injury on these species.

Más información

ID de Registro: 11419
Identificador DC: http://oa.upm.es/11419/
Identificador OAI: oai:oa.upm.es:11419
Identificador DOI: 10.1016/j.atmosenv.2003.07.002
Depositado por: Memoria Investigacion
Depositado el: 24 Jul 2012 11:15
Ultima Modificación: 20 Abr 2016 19:30
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