Physiological performance and growth under low and high light treatments in three neotropical species of Cecropia

Authors

  • Patricia J. Folgarait Department of Biololgy, University of Utah, Salt Lake City, Utah, 84112. U.S.A.

Abstract

Light acclimation in gas exchange properties was found in three different Neotropical species of Cecropia under greenhouse conditions. Two species are habitat specialists (C. tessmannii, a shade species and C. membranacea, a sun species), and the third ís a generalist (C. pachystachya). The shade species showed the least flexibility. Rates of photosynthesis were positively correlated with light intensify, transpiration and conductance. Photosynthetic rates for each species ranked in the same order as growth rates. The generalist species, C. pachystachya performed, oil average, better than any of the specialists in their own light environment.

References

Bazzaz, F.A. y R.W. Carlson. 1982. Photosynthetic acclimation to variability in the light environment of early and late successional plants. Oecologia 54:313-316.

Boardman, N.K. 1977. Comparative Photosynthesis of sun and shade plants. Ann. Rev. Plant Physiol. 28:355- 377.

Chazdon, R.L. y R.W. Pearcy. 1986. Photosynthetic responses to light variation in rainforest species. 11. Carbon gain and photosynthetic efficiency during lightflecks. Oecologia 69:524-531.

Clough, J.M., J.A. Teeri y R.S. Alberte. 1979. Photosynthetic adaptation of Solanum dulcamara L. to sun and shade environments. Occologia 38:13-21.

Davidson, D.W. , R.Foster., R.R. Snelling y P.W. Lozada. (en prensa) Variable composition of some tropical ant-plant symbioses. En: Hsrbivory: Tropical and Temperate Perspectives P Price (Compilador).

Seemann, J.R. 1989. Light adaptation/acclimation of photosynthesis and the regulation of ribulose-1,5- bisphosphate carboxylase activity in sun and shade plants. Plant Physiol. 91:379-386.

Sims, D.A. y R.W. Pearcy. 1989. Photosynthetic characteristics of a tropical forest understory herb, Alocasia macrorrhiza, and a related crop species, Colocasia esculenta grown in contrasting light environments. Oecologia 79:53-59.

Smith. If. 1982. Light quality, photoreception, and light strategy. Ann. Rev. Plant Physiol. 33:481-518.

Walters. M.B. y C.B. Field. 1987. Photosynthetic light acclimation in two rainforest Piper species with different ecological amplitudes. Oecologia 72:449-456.

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Published

1991-06-01

How to Cite

Folgarait, P. J. (1991). Physiological performance and growth under low and high light treatments in three neotropical species of Cecropia. Ecología Austral, 1(1), 011–016. Retrieved from https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1745

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Articles