title: Photosynthesis in epiphytic and rooted Clusia rosea Jacq.
abstract: Clusia rosea Jacq. is a hemiepiphyte having Crassulacean Acid Metabolism (CAM). In its natural habitat Clusia begins its life cycle as an epiphyte and eventually becomes a rooted tree. These two stages of the life cycle of Clusia represent markedly different water regimes. Our CO2exchange, stomatal conductance, titratable acidity, and stable carbon isotope ratio measurements indicate that Clusia has a flexible photosynthetic mode, where CO2is fixed mostly via CAM during its epiphytic stage, when water availability is low, and via both CAM and C3during its rooted stage.
authors.affiliation: Department of Biology, University of Miami, 33124, Coral Gables, FL, USA.
authors.forename: L da S L
authors.initials: LD
authors.lastname: Sternberg
authors.affiliation: Department of Botany and Plant Sciences, University of California, 92521, Riverside, CA, USA.
authors.forename: I P
authors.initials: IP
authors.lastname: Ting
authors.affiliation: Department of Geology, University of Miami, 33124, Coral Gables, FL, USA.
authors.forename: D
authors.initials: D
authors.lastname: Price
authors.affiliation: Department of Botany and Plant Sciences, University of California, 92521, Riverside, CA, USA.
authors.forename: J
authors.initials: J
authors.lastname: Hann
keywords: Carbon isotope ratios; Crassulacean acid metabolism; Hemiepiphyte; Photosynthesis