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29 March 2024
 
  » pubmed » pmid17789223

 Article overview


Carbon Fixation and Isotope Discrimination by a Crassulacean Plant: Dependence on the Photoperiod
J C Lerman ; O Queiroz ;
Date 22 Mar 1974
Journal Science, 183 (4130), 1207-1209
AbstractVariations of more than 1 percent are observed in the carbon-13 to carbon-12 ratio of extracts of leaves of the succulent Kalanchoe blossfeldiana when the photoperiod is changed from long to short days. This indicates that the mechanism of carbon fixation switches from the Calvin (C(3)) pathway to the Hatch-Slack (C(4)) pathway of primary enzymic operation. The variations observed in the isotope compositions are tentatively explained by a model.
Source PubMed, pmid17789223 doi: 10.1126/science.183.4130.1207
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