Fatty acid esters produced by Lasiodiplodia theobromae function as growth regulators in tobacco seedlings
| Autor: | Anthony A. Mrse, Michael D. Burkart, Rufina Hernandez-Martinez, Joris Beld, Carla C. Uranga, Iván Córdova-Guerrero |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Biophysics 01 natural sciences Biochemistry 03 medical and health sciences chemistry.chemical_compound Ascomycota Plant Growth Regulators Tobacco Fusarium oxysporum Food science Molecular Biology Gibberellic acid chemistry.chemical_classification Dose-Response Relationship Drug biology Fatty Acids food and beverages Fatty acid Esters Cell Biology Botryosphaeriaceae biology.organism_classification 030104 developmental biology chemistry Seedlings Germination Seedling Ethyl palmitate 010606 plant biology & botany Lasiodiplodia theobromae |
| Zdroj: | Biochemical and Biophysical Research Communications. 472:339-345 |
| ISSN: | 0006-291X |
| DOI: | 10.1016/j.bbrc.2016.02.104 |
| Popis: | The Botryosphaeriaceae are a family of trunk disease fungi that cause dieback and death of various plant hosts. This work sought to characterize fatty acid derivatives in a highly virulent member of this family, Lasiodiplodia theobromae. Nuclear magnetic resonance and gas chromatography-mass spectrometry of an isolated compound revealed (Z, Z)-9,12-ethyl octadecadienoate, (trivial name ethyl linoleate), as one of the most abundant fatty acid esters produced by L. theobromae. A variety of naturally produced esters of fatty acids were identified in Botryosphaeriaceae. In comparison, the production of fatty acid esters in the soil-borne tomato pathogen Fusarium oxysporum, and the non-phytopathogenic fungus Trichoderma asperellum was found to be limited. Ethyl linoleate, ethyl hexadecanoate (trivial name ethyl palmitate), and ethyl octadecanoate, (trivial name ethyl stearate), significantly inhibited tobacco seed germination and altered seedling leaf growth patterns and morphology at the highest concentration (0.2 mg/mL) tested, while ethyl linoleate and ethyl stearate significantly enhanced growth at low concentrations, with both still inducing growth at 98 ng/mL. This work provides new insights into the role of naturally esterified fatty acids from L. theobromae as plant growth regulators with similar activity to the well-known plant growth regulator gibberellic acid. |
| Databáze: | OpenAIRE |
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