Trees

, Volume 19, Issue 5, pp 497–509

Ecophysiology of selected tree species in different plant communities at the periphery of the Atlantic Forest of SE Brazil I. Performance of three different species of Clusia in an array of plant communities

  • F. R. Scarano
  • H. M. Duarte
  • A. C. Franco
  • A. Geβler
  • E. A. de Mattos
  • M. Nahm
  • H. Rennenberg
  • H. L. T. Zaluar
  • U. Lüttge
Original Article

DOI: 10.1007/s00468-005-0421-8

Cite this article as:
Scarano, F.R., Duarte, H.M., Franco, A.C. et al. Trees (2005) 19: 497. doi:10.1007/s00468-005-0421-8

Abstract

Three species of Clusia, namely two CAM-species (C. hilariana Schlecht. and C. fluminensis Planch. et Triana) and a C3-species (C. parviflora Saldanha et Engl.) were studied in different plant communities at the periphery of the Atlantic Forest in the state of Rio de Janeiro, Brazil. The sites chosen were an inselberg (C. parviflora), a range of wet restinga – dry restinga – semideciduous dry forest (C. fluminensis), and a gradient from the sea shore inland with a first sand dune beach ridge – a dry forest – a second beach ridge (C. hilariana). Analyses comprised C and N contents, soluble carbohydrates, soluble nonprotein N compounds and carbon isotope ratios (δ13C) in leaves, roots, phloem and wood. Photosynthetic performance was assessed by chlorophyll fluorescence with measurements of instant photosynthetic yield as well as light dependence and potential quantum-use efficiency of photosystem II.

The data allow, first, to discuss differences between the ecophysiological performance of C3- and CAM-species of Clusia. The C3-species, C. parvifolia, had an overall weaker performance than the two CAM-species, where, however, the effects of mode of photosynthesis may have been overlaid by site conditions. Second, it was studied whether ecophysiological performance relates to patterns of local abundance, which was confirmed by showing that the dominant Clusia species of the restingas, C. hilariana, showed the strongest performance overall.

Finally, it was studied whether the ecophysiological performance varied in response to site-dependent gradients of environmental water relations, which was confirmed for functions such as photosynthetic capacity, photoinhibition and solute accumulation of C. hilariana and C. fluminensis in relation to moisture of sites.

Keywords

Clusia N-compounds Phloem-sap Photosynthesis Stable carbon isotope ratios 

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • F. R. Scarano
    • 1
  • H. M. Duarte
    • 2
  • A. C. Franco
    • 3
  • A. Geβler
    • 4
  • E. A. de Mattos
    • 1
  • M. Nahm
    • 4
  • H. Rennenberg
    • 4
  • H. L. T. Zaluar
    • 1
  • U. Lüttge
    • 2
  1. 1.Departamento de EcologiaUniversidade Federal do Rio de Janeiro, CCS, IBRio de JaneiroBrazil
  2. 2.Institut für BotanikDarmstadt University of TechnologyDarmstadtGermany
  3. 3.Departamento de BotânicaUniversidade de BrasíliaBrasíliaBrazil
  4. 4.Institut für Forstbotanik und Baumphysiologie, Professur für BaumphysiologieFreiburg UniversityFreiburgGermany

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