Photosynthetica 2013, 51(2):317-320 | DOI: 10.1007/s11099-013-0020-7

Gas exchange of terrestrial and epiphytic orchids from Brazilian Atlantic Rainforest

M. V. Pires1, A. A. F. Almeida1,*, E. A. Santos1, F. Z. Bertolde1
1 Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz (DCB/UESC), Ilhéus, BA, Brazil

Leaf gas exchange of terrestrial and epiphytic orchids from the Atlantic Rainforest in northeast Brazil was investigated under artificial growth conditions. The terrestrial orchids showed higher values of all photosynthetic parameters in comparison to epiphytic ones. There was a close relationship between P N and g s for both terrestrial and epiphytic orchids. Taken together, our results demonstrated that the photosynthetic parameters were related to the specific growth habits of the orchids under study.

Keywords: epiphytes; net photosynthetic rate; orchids; photosynthesis; stomatal conductance; terrestrial; transpiration

Received: May 15, 2012; Accepted: December 20, 2012; Published: June 1, 2013Show citation

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Pires, M.V., Almeida, A.A.F., Santos, E.A., & Bertolde, F.Z. (2013). Gas exchange of terrestrial and epiphytic orchids from Brazilian Atlantic Rainforest. Photosynthetica, 51(2), 317-320. doi: 10.1007/s11099-013-0020-7.
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