@article{fdi:010065886,
  title = {{D}o volatile organic compound emissions of {T}unisian cork oak populations originating from contrasting climatic conditions differ in their responses to summer drought ?},
  author = {{S}taudt, {M}. and {E}nnajah, {A}. and {M}ouillot, {F}lorent and {J}offre, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he intrinsic variability of volatile organic compound emissions and photosynthetic parameters in response to two drying cycles was investigated on {Q}uercus suber {L}. saplings originating from three {T}unisian populations native to contrasting climates. {E}missions mainly included monoterpenes plus traces of sesquiterpenes and methylsalicylate that steadily decreased during the experiment unrelated to treatments. {I}nstead, monoterpene emissions increased by 30% during a first moderate drought and remained enhanced after rewatering, while {CO}2-{H}2{O} gas exchange was reduced by 30%. {A} second severe drought decreased monoterpene emissions to about two third of controls, strongly inhibited gas exchange and photochemical efficiency, and caused a partial loss of chlorophyll. {R}ewatering led to only partial recovery of emissions and photosynthetic parameters of stressed plants whose biomasses and leaf nitrogen and chlorophyll contents were lower than in control plants. {T}here was no clear difference among populations in volatile organic compound emissions or photosynthetic parameters. {H}owever, the population inhabiting the most arid region had intrinsically smaller leaves with lower specific leaf masses and higher drought-related leaf losses than populations native to less arid climates. {T}hese results indicate an adaptive shift from stress-tolerating towards stress-avoiding ecotypes under arid climates involving mainly morphological adaptations without apparent differentiation in volatile organic compound production, probably because of its high phenological plasticity.},
  keywords = {},
  booktitle = {},
  journal = {{C}anadian {J}ournal of {F}orest {R}esearch - {R}evue {C}anadienne de {R}echerche {F}orestiere},
  volume = {38},
  numero = {12},
  pages = {2965--2975},
  ISSN = {0045-5067},
  year = {2008},
  DOI = {10.1139/x08-134},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065886},
}