Crassulacean acid metabolism

Leaf carbon assimilation and molecular phylogeny in Cattleya species (Orchidaceae)

V. Andrade-Souza, Almeida, A. - A. F., Corrêa, R. X., Costa, M. A., Mielke, M. S., and Gomes, F. P., Leaf carbon assimilation and molecular phylogeny in Cattleya species (Orchidaceae), vol. 8, pp. 976-989, 2009.

We examined leaf CO2 assimilation and how it varied among species within the orchid genus Cattleya. Measurements of CO2 assimilation and maximum quantum yield of PS II (Fv/Fm) were made for mature leaves of nine species using a portable system for photosyn­thesis measurement and a portable fluorometer. Leaf area was measured with an area meter, and the specific leaf mass was determined. DNA of nine Cattleya species and two species of Hadrolaelia was extracted us­ing the CTAB protocol.

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