The effect of a long-term water stress on the metabolism and emission of terpenes of the foliage of Cupressus sempervirens |
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Authors: | A. YANI G. PAULY M. FAYE F. SALIN M. GLEIZES |
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Affiliation: | Laboratoire de Physiologie Cellulaire Végétale, U.A. CNRS no. 568, UniversitéBordeaux I, Avenue des Facultés, 33405 Talence Cedex, France |
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Abstract: | The effects of long-term water stress on water and terpene contents of the foliage of Cupressus sempervirens were studied. A great deal of water was lost over 2 months before a remarkable stabilization. A strong decrease of all the classes of terpenes accompanied this dehydration. Mono- and sesquiterpene hydrocarbons and free terpenols were almost entirely metabolized, whereas esters and terpene glycosides rose slightly and remained at a constant level when the water content had stabilized. Although a significant part of the mono- and sesquiterpene hydrocarbons was emitted in the early stage of stress application, the major part was used by the plant in response to the drought conditions. |
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Keywords: | Cupressus sempervirens water-stress terpene hydrocarbons oxygenated terpenes terpene glycosides metabolism emission |
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