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Crassulacean acid metabolism in Kalanchoë species collected in various climatic zones of Madagascar: a survey by δ13C analysis.
Oecologia 88, 407-414 (1991)
The carbon isotope compositions of samples of Kalanchoë species collected at the natural stands in Madagascar were determined. The results suggest that all species of the genus Kalanchoë are capable of crassulacean acid metabolism. The observed δ13C values cover the whole range from -10 to -30‰. This high diversity of the δ13C values was found among the species of the genus as well as, in certain cases, within a single species. This suggest that the CAM patterns in Kalanchoë are generally very flexible. The δ13C values show a clear correlation with the climate of the habitats from where the samples derived. Values indicative of CO2 fixation taking place exclusively during the night were found in the dry regions of Madagascar, whereas δ13C values indicative of mixed CO2 fixation during night and day or of CO2 fixation entirely during the day are distributed in the humid zones.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Carbon Isotope Composition ; Crassulacean Acid Metabolism (cam) ; Ecophysiology ; Kalanchoë ; Madagascar
ISSN (print) / ISBN
0029-8549
e-ISSN
1432-1939
Journal
Oecologia
Quellenangaben
Volume: 88,
Issue: 3,
Pages: 407-414
Publisher
Springer
Non-patent literature
Publications
Reviewing status
Peer reviewed