Changes in Eucalyptus camaldulensis essential oil composition as response to drought preconditioning

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Water deficit, a common constraint in forestry, is the main cause of plant stress during plantation. The survival and growth of seedlings is also compromised by herbivory during establishment. The potential of nursery preconditioning to enhance survival chances of future trees by reducing palatabili...

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Detalles Bibliográficos
Otros Autores: Leicach, Silvia Rosa, Garau, Ana María, Guarnaschelli, Ana Beatriz, Yaber Grass, Margarita A., Sztarker, Norberto D., Dato, Analía
Formato: Artículo
Lenguaje:Inglés
Materias:
ESSENTIAL OIL
EUCALYPTUS CAMALDULENSIS
NURSERY STAGE
WATER STRESS
EUCALYPTUS
HEXAPODA
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2010Leicach.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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520 |a Water deficit, a common constraint in forestry, is the main cause of plant stress during plantation. The survival and growth of seedlings is also compromised by herbivory during establishment. The potential of nursery preconditioning to enhance survival chances of future trees by reducing palatability or attracting beneficial insects as a result of changes in chemical defences may be an answer to overcome this situation. Changes in essential oil production and composition were evaluated by GC and GC-MS in Eucalytus camaldulensis seedlings submitted to drought during four weeks at the last stage of nursery period [20 weeks]. Significant changes in essential oil relative composition were found. Seedlings [young leaves] submitted to drought developed a terpenoid blend, which has been previously associated to mature leaves and related to their higher resistance towards herbivory. Total amount of non-oxygenated terpenes decreased by 44 percent, whereas some oxygenated sesquiterpenes [globulol, epiglobulol and ledol] were doubled, and 1,8-cineole content was enhanced by 28.3 percent. 
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900 |a ^aLeicach^bS.R.^tQuímica de Biomoléculas, Facultad de Agronomía [FA], Universidad de Buenos Aires [UBA], Ciudad Autónoma de Buenos Aires, Argentina 
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