Phosotynthesis in hemiepiphytic species of Clusia and Ficus

I. P. Ting, J. Hann, N. M. Holbrook, F. E. Putz, Leonel Sternberg, D. Price, G. Goldstein

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Hemiepiphytic species in the genera Clusia and Ficus were investigated to study their mode of photosynthetic metabolism when growing under natural conditions. Despite growing sympatrically in many areas and having the same growth habit, some Clusia species show Crassulacean acid metabolism (CAM) whereas all species of Ficus investigated are C3. This conclusion is based on diurnal CO2 fixation patterns, diurnal stomatal conductances, diurnal titratable acidity fluctuations, and δ13C isotope ratios. Clusia minor, growing in the savannas adjacent to Barinas, Venezuela, shows all aspects of Crassulacean acid metabolism (CAM) on the basis of nocturnal gas exchange, stomatal conductance, total titratable acidity, and carbon isotope composition when measured during the dry season (February 1986). During the wet season (June 1986), the plants shifted to C3-type gas exchange with all CO2 uptake occurring during the daylight hours. The carbon isotope composition of new growth was-28 to-29‰ typical of C3 plants.

Original languageEnglish
Pages (from-to)339-346
Number of pages8
JournalOecologia
Volume74
Issue number3
DOIs
StatePublished - Dec 1 1987

Fingerprint

Clusia
Ficus
crassulacean acid metabolism
isotopes
Crassulacean acid metabolism
stomatal conductance
gas exchange
titratable acidity
carbon isotope
acidity
C3 plant
carbon
C3 plants
growth habit
diurnal variation
Venezuela
wet season
savanna
fixation
savannas

Keywords

  • CAM
  • Clusia
  • Ficus
  • Hemiepiphyte
  • Photosynthesis
  • Strangler

ASJC Scopus subject areas

  • Ecology

Cite this

Ting, I. P., Hann, J., Holbrook, N. M., Putz, F. E., Sternberg, L., Price, D., & Goldstein, G. (1987). Phosotynthesis in hemiepiphytic species of Clusia and Ficus. Oecologia, 74(3), 339-346. https://doi.org/10.1007/BF00378927

Phosotynthesis in hemiepiphytic species of Clusia and Ficus. / Ting, I. P.; Hann, J.; Holbrook, N. M.; Putz, F. E.; Sternberg, Leonel; Price, D.; Goldstein, G.

In: Oecologia, Vol. 74, No. 3, 01.12.1987, p. 339-346.

Research output: Contribution to journalArticle

Ting, IP, Hann, J, Holbrook, NM, Putz, FE, Sternberg, L, Price, D & Goldstein, G 1987, 'Phosotynthesis in hemiepiphytic species of Clusia and Ficus', Oecologia, vol. 74, no. 3, pp. 339-346. https://doi.org/10.1007/BF00378927
Ting IP, Hann J, Holbrook NM, Putz FE, Sternberg L, Price D et al. Phosotynthesis in hemiepiphytic species of Clusia and Ficus. Oecologia. 1987 Dec 1;74(3):339-346. https://doi.org/10.1007/BF00378927
Ting, I. P. ; Hann, J. ; Holbrook, N. M. ; Putz, F. E. ; Sternberg, Leonel ; Price, D. ; Goldstein, G. / Phosotynthesis in hemiepiphytic species of Clusia and Ficus. In: Oecologia. 1987 ; Vol. 74, No. 3. pp. 339-346.
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