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Modifications of the leaf surface structures of Quercus ilex L. in open, naturally CO 2 ‐enriched environments
Author(s) -
Paoletti E.,
Nourrisson G.,
Garrec J. P.,
Raschi A.
Publication year - 1998
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1046/j.1365-3040.1998.00358.x
Subject(s) - carbon dioxide , chemistry , wetting , botany , wax , horticulture , environmental chemistry , biology , materials science , organic chemistry , composite material
Two Italian CO 2 springs allowed us to study the long‐term effect of a 350–2600 μ mol mol –1 increase in CO 2 concentrations on the surface structures of leaves of Quercus ilex L. Carbon dioxide increased the quantity of cuticular waxes, above an apparent threshold of 750 μ mol mol –1 CO 2 . Leaf wettability was not modified by CO 2 concentrations. Reduction in stomatal frequency was observable up to 750 μ mol mol –1 CO 2 , the slope being almost the same as that estimated for the increase in CO 2 concentration from pre‐industrial times to the present. At higher concentrations, CO 2 seemed to exert no more impact on stomatal frequency.