Jasmonic acid interacts with abscisic acid to regulate plant responses to water stress conditions
| Autor: | Aurelio Gómez-Cadenas, Carlos de Ollas, Vicent Arbona |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
0301 basic medicine Proline hormone signal transduction Short Communication Mutant Arabidopsis Plant Science drought Cyclopentanes Biology 01 natural sciences Plant Roots 03 medical and health sciences chemistry.chemical_compound Oxylipins proline Desiccation Isoleucine Abscisic acid Dehydration Jasmonic acid organic chemicals fungi jar1-1 food and beverages biology.organism_classification Plant Leaves Crosstalk (biology) 030104 developmental biology JA-Ile chemistry Biochemistry ABA coi1-16 010606 plant biology & botany Hormone Abscisic Acid |
| Popis: | Phytohormones are key players in signaling environmental stress conditions. Hormone profiling together with proline accumulation were studied in leaves and roots of different mutant lines of Arabidopsis. Regulation of proline accumulation in this system seems complex and JA-deficient (jar1-1) and JA-insensitive (jai1) lines accumulating high levels of proline despite their very low ABA levels seems to discard an ABA-dependent response. However, the pattern of proline accumulation in jai1 seedlings parallels that of ABA. Under stress conditions, there is an opposite pattern of ABA accumulation in roots of jar1-1/coi1-16 (in which ABA only slightly increase) and jai1 (in which ABA increase is even higher than in WT plants). This also makes JA-ABA crosstalk complex and discards any lineal pathway that could explain this hormonal interaction. This work was supported by the Spanish Ministerio de Econom ıa y Competitividad (MINECO) through grant AGL2013- 42038R. |
| Databáze: | OpenAIRE |
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