Ecophysiology of cuticular transpiration: comparative investigation of cuticular water permeability of plant species from different habitats

摘要: Water permeabilities of astomatous, isolated cuticular membranes (CM) 24 different plants species were measured. Permeances varied from 1.7×10−11 m·s−1 (Vanilla planifolia leaf) up to 2.1×10−9 (Malus cf. domestica fruit) among plant species, thus covering a range over 2 orders magnitude. Ranking according permeances resulted in four distinct groups. The first group, with the lowest transpiration rates, included evergreen growing warm dry tropical climates (e.g. Vanilla and Monstera deliciosa leaves). second class, slightly higher water permeabilities, typical scleromorphic leaf properties, adapted mediterranean type climate period during year Citrus limon Olea europaea third group where highest rates observed, deciduous normally tempeate Juglans regia Forsythia suspensa Fruit made fourth Capsicum annuum Malus fruits), even than leaves 3. Thus, it appears that investigated show ecophysiological adaptations climatic demands their natural habitats permeability.