HORMONE AND METABOLITE TRAITS RELATED TO ABIOTIC STRESS TOLERANCE IN CITRUS
| Autor: | Aurelio Gómez-Cadenas, María F. López-Climent, Carlos de Ollas, Vicent Arbona, Rosa Argamasilla |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Acta Horticulturae. :1275-1281 |
| ISSN: | 2406-6168 0567-7572 |
| DOI: | 10.17660/actahortic.2015.1065.162 |
| Popis: | Plants of the citrus rootstocks Carrizo citrange (CC, soil flooding tolerant) and Cleopatra mandarin (CM, drought tolerant) were subjected to water stress and soil flooding conditions to study root responses associated to tolerance. Responses could be classified in groups with different involvement in plant tolerance. Some of them, such as the increase in proline levels, were common to the two species and the two stress conditions assayed. Others, such as the abscisic acid and jasmonic acid signals or the phenylpropanoid profiles followed similar trends in both species varying with the stress imposed. Finally, other responses as the increase in salicylic acid were specific to each genotype and stress situation. Moreover, following a metabolomics approach, it was shown that the altered compounds in response to each stress had a low degree of overlapping which accounts for the specificity of the plant response to different environmental restraints. Finally, under control conditions, different metabolites had higher levels in CM than CC which suggested that pre-existent defenses are important as a stress tolerance trait. |
| Databáze: | OpenAIRE |
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