Responses of evergreen and deciduous Quercus species to enhanced ozone levels
Plants of one evergreen oak (Quercus ilex) and three deciduous oaks (Q. faginea, with small leaves; Q. pyrenaica and Q. robur, with large leaves) were exposed both to filtered air and to enhanced ozone levels in Open-Top Chambers. Q. faginea and Q. pyrenaica were studied for the first time. Based on...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/60270 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/60270 |
| Access Level: | acceso abierto |
| Palabra clave: | Anatomy Critical levels Functional leaf traits Ozone Photosynthesis Stomatal conductance Chlorophyll contents Critical level Gas exchange Leaf traits Mediterranean vegetation Ozone flux Ozone levels Q. robur Quercus ilex Quercus species Sensitive species Visible injuries Chlorophyll Porphyrins Risk assessment Air quality Atmospheric pollution Deciduous tree Evergreen tree Leaf Air Article Biomass Environmental exposure Evergreen Leaf gas exchange Nonhuman Oak Plant height Plant leaf Plant stoma Vegetation Plant Leaves Quercus Quercus faginea Quercus pyrenaica Quercus robur BOTANICA BIOLOGIA VEGETAL |
| Sumario: | Plants of one evergreen oak (Quercus ilex) and three deciduous oaks (Q. faginea, with small leaves; Q. pyrenaica and Q. robur, with large leaves) were exposed both to filtered air and to enhanced ozone levels in Open-Top Chambers. Q. faginea and Q. pyrenaica were studied for the first time. Based on visible injury, gas exchange, chlorophyll content and biomass responses, Q. pyrenaica was the most sensitive species, and Q. ilex was the most tolerant, followed by Q. faginea. Functional leaf traits of the species were related to differences in sensitivity, while accumulated ozone flux via stomata (POD1.6) partly contributed to the observed differences. For risk assessment of Mediterranean vegetation, the diversity of responses detected in this study should be taken into account, applying appropriate critical levels. © 2010 Elsevier Ltd. All rights reserved. |
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