| Inhibitory effect of jasmonic acid and ethylene on epicotyl growth and bud induction in the maritime pine, Pinus pinaster Soland. in ait. | |
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MedLine Citation:
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PMID: 20067029 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Two independent parameters, epicotyl height (cm) and number of induced buds were studied on Pinus pinaster explants to analyse the effects of three phytohormones (6-benzylaminopurine, jasmonic acid, ethylene) which were combined or not in 11 different treatments. Epicotyle length diminished significantly in relation to the control medium (medium without exogen phytohormones) in presence of jasmonic acid, 6-benzylaminopurine or Ethephon (which is converted to ethylene in plants) in any of treatments. Concentrations of 100 microM of jasmonic acid and Ethephon had a greater inhibitory effect than the treatments with 10 microM. In addition to that, jasmonic acid was a stronger inhibitor than Ethephon in any of the tried combinations. There were no significant differences between the control treatment and the treatments with only 10 microM of jasmonic acid or Ethephon. However, 10 microM 6-benzylaminopurine induced bud formation. The different combinations of 6-benzylaminopurine with jasmonic acid and Ethephon showed that concentrations of 10 to 100 microM did not affect the number of induced buds. Jasmonic acid had an inhibitory effect which Ethephon only showed when combined with 100 microM of jasmonic acid and 10 microM of 6-benzylaminopurine. Three response groups were defined by cluster analysis: group 1 produced the greatest mean number of buds (4 to 5) and a mean epicotyl growth of 1 to 1.5 cm; group 2 produced 2 to 4 buds and a mean growth of 0.5 to 1.2 cm; group 3 produced only one bud and a mean epicotyl length of 1.2 to 2 cm. |
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Authors:
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Maria Teresa Martin; Hilda Pedranzani; Patricia García-Molinero; Valentin Pando; Rosario Sierra-de-Grado |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biocell : official journal of the Sociedades Latinoamericanas de Microscopía Electronica ... et. al Volume: 33 ISSN: 0327-9545 ISO Abbreviation: Biocell Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2010-01-13 Completed Date: 2010-02-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9438655 Medline TA: Biocell Country: Argentina |
Other Details:
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Languages: eng Pagination: 141-8 Citation Subset: IM |
Affiliation:
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Departamento de Producción Vegetal y Recursos Forestales, Escuela Técnica Superior de Ingenierías Agrarias, Universidad de Valladolid, Avda. de Madrid, 44; Palencia E-34007, Spain. marvilte@itacyl.es |
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| MeSH Terms | |
Descriptor/Qualifier:
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Benzyl Compounds
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pharmacology* Cyclopentanes / pharmacology* Ethylenes / metabolism, pharmacology* Organophosphorus Compounds / pharmacology Oxylipins / pharmacology* Pinus / drug effects*, growth & development Plant Components, Aerial / drug effects*, growth & development Plant Growth Regulators / pharmacology* Purines / pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Benzyl Compounds; 0/Cyclopentanes; 0/Ethylenes; 0/Organophosphorus Compounds; 0/Oxylipins; 0/Plant Growth Regulators; 0/Purines; 0/benzylaminopurine; 16672-87-0/ethephon; 6894-38-8/jasmonic acid; 74-85-1/ethylene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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