Gas exchange and water balance of a mistletoe species and its mangrove hosts

G. Goldstein, F. Rada, Leonel Sternberg, J. L. Burguera, M. Burguera, A. Orozco, M. Montilla, O. Zabala, A. Azocar, M. J. Canales, A. Celis

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The gas exchange and water relations of the hemiparasite Pthirusa maritima and two its mangrove host species, Conocarpus erectus and Coccoloba uvifera, were studied in an intertidal zone of the Venezuelan coast. Carbon uptake and transpiration, leaf osmotic and total water potential, as well as nutrient content in the xylem sap and leaves of mistletoes and hosts were followed through the dry and wet season. In addition, carbon isotope ratios of leaf tissue were measured to further evaluate water use efficiency. Under similar light and humidity conditions, mistletoes had higher transpiration rates, lower leaf water potentials, and lower water use efficiencies than their hosts. Potassium content was much higher in mistletoes than in host leaves, but mineral nutrient content in the xylem sap of mistletoes was relatively low. The resistance of the liquid pathway from the soil to the leaf surface of mistletoes was larger than the total liquid flow resistance of host plants. Differences in the daily cycles of osmotic potential of the xylem sap also indicate the existence of a high resistance pathway along the vascular connection between the parasite pathway along the vascular connection between the parasite and its host. P. maritima mistletoes adjust to the different physiological characteristics of the host species which it parasitizes, thus ensuring an adequate water and carbon balance.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalOecologia
Volume78
Issue number2
DOIs
StatePublished - Feb 1 1989

Fingerprint

Santalales
gas exchange
water balance
mangrove
water budget
xylem
sap
leaves
water use efficiency
blood vessels
transpiration
Coccoloba uvifera
carbon
parasite
Conocarpus erectus
nutrient content
hemiparasite
flow resistance
parasites
liquid

Keywords

  • Carbon isotope ratios
  • Gas exchange
  • Mangrove trees
  • Mistletoes
  • Water relations

ASJC Scopus subject areas

  • Ecology

Cite this

Goldstein, G., Rada, F., Sternberg, L., Burguera, J. L., Burguera, M., Orozco, A., ... Celis, A. (1989). Gas exchange and water balance of a mistletoe species and its mangrove hosts. Oecologia, 78(2), 176-183. https://doi.org/10.1007/BF00377153

Gas exchange and water balance of a mistletoe species and its mangrove hosts. / Goldstein, G.; Rada, F.; Sternberg, Leonel; Burguera, J. L.; Burguera, M.; Orozco, A.; Montilla, M.; Zabala, O.; Azocar, A.; Canales, M. J.; Celis, A.

In: Oecologia, Vol. 78, No. 2, 01.02.1989, p. 176-183.

Research output: Contribution to journalArticle

Goldstein, G, Rada, F, Sternberg, L, Burguera, JL, Burguera, M, Orozco, A, Montilla, M, Zabala, O, Azocar, A, Canales, MJ & Celis, A 1989, 'Gas exchange and water balance of a mistletoe species and its mangrove hosts', Oecologia, vol. 78, no. 2, pp. 176-183. https://doi.org/10.1007/BF00377153
Goldstein G, Rada F, Sternberg L, Burguera JL, Burguera M, Orozco A et al. Gas exchange and water balance of a mistletoe species and its mangrove hosts. Oecologia. 1989 Feb 1;78(2):176-183. https://doi.org/10.1007/BF00377153
Goldstein, G. ; Rada, F. ; Sternberg, Leonel ; Burguera, J. L. ; Burguera, M. ; Orozco, A. ; Montilla, M. ; Zabala, O. ; Azocar, A. ; Canales, M. J. ; Celis, A. / Gas exchange and water balance of a mistletoe species and its mangrove hosts. In: Oecologia. 1989 ; Vol. 78, No. 2. pp. 176-183.
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