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Effect of temperature on cuticular transpiration of isolated cuticular membranes and leaf discs.
J Exp Bot 2001; 52(362):1893-900JE

Abstract

Cuticular transpiration was measured in the temperature range between 10 degrees C and 55 degrees C using tritiated water and five species (Vinca major L., Prunus laurocerasus L., Forsythia intermedia L., Citrus aurantium L., and Hedera helix L.). Cuticular water permeabilities measured with isolated cuticular membranes were not different from cuticular water permeabilities measured with leaf discs. Depending on the species cuticular water permeabilities increased by factors between 12 (V. major) to 264 (H. helix) when temperature was increased from 10 degrees C to 55 degrees C. Arrhenius plots (lnP versus 1/T) of all investigated species were characterized by phase transitions occurring in the temperature range of 30-39 degrees C. Activation energies for water permeability across plant cuticles below and above the midpoint of phase transition were calculated from Arrhenius plots. Depending on the species they varied between 26 (F. intermedia) to 61 kJ mol(-1) (H. helix) below the phase transition and from 67 (V. major) to 122 kJ mol(-1) (F. intermedia) above the phase transition. Since the occurrence of phase transitions always lead to significantly increased rates of cuticular transpiration it is argued that temperatures higher than 35 degrees C caused structural defects to the transport-limiting barrier of the plant cuticles of all species investigated.

Authors+Show Affiliations

Botanisches Institut, Abteilung Okophysiologie, Universität Bonn, Kirschallee 1, D-53115 Bonn, Germany. lukas.schreiber@uni-bonn.de

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11520878

Citation

Schreiber, L. "Effect of Temperature On Cuticular Transpiration of Isolated Cuticular Membranes and Leaf Discs." Journal of Experimental Botany, vol. 52, no. 362, 2001, pp. 1893-900.
Schreiber L. Effect of temperature on cuticular transpiration of isolated cuticular membranes and leaf discs. J Exp Bot. 2001;52(362):1893-900.
Schreiber, L. (2001). Effect of temperature on cuticular transpiration of isolated cuticular membranes and leaf discs. Journal of Experimental Botany, 52(362), pp. 1893-900.
Schreiber L. Effect of Temperature On Cuticular Transpiration of Isolated Cuticular Membranes and Leaf Discs. J Exp Bot. 2001;52(362):1893-900. PubMed PMID: 11520878.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of temperature on cuticular transpiration of isolated cuticular membranes and leaf discs. A1 - Schreiber,L, PY - 2001/8/25/pubmed PY - 2002/1/5/medline PY - 2001/8/25/entrez SP - 1893 EP - 900 JF - Journal of experimental botany JO - J. Exp. Bot. VL - 52 IS - 362 N2 - Cuticular transpiration was measured in the temperature range between 10 degrees C and 55 degrees C using tritiated water and five species (Vinca major L., Prunus laurocerasus L., Forsythia intermedia L., Citrus aurantium L., and Hedera helix L.). Cuticular water permeabilities measured with isolated cuticular membranes were not different from cuticular water permeabilities measured with leaf discs. Depending on the species cuticular water permeabilities increased by factors between 12 (V. major) to 264 (H. helix) when temperature was increased from 10 degrees C to 55 degrees C. Arrhenius plots (lnP versus 1/T) of all investigated species were characterized by phase transitions occurring in the temperature range of 30-39 degrees C. Activation energies for water permeability across plant cuticles below and above the midpoint of phase transition were calculated from Arrhenius plots. Depending on the species they varied between 26 (F. intermedia) to 61 kJ mol(-1) (H. helix) below the phase transition and from 67 (V. major) to 122 kJ mol(-1) (F. intermedia) above the phase transition. Since the occurrence of phase transitions always lead to significantly increased rates of cuticular transpiration it is argued that temperatures higher than 35 degrees C caused structural defects to the transport-limiting barrier of the plant cuticles of all species investigated. SN - 0022-0957 UR - https://www.unboundmedicine.com/medline/citation/11520878/Effect_of_temperature_on_cuticular_transpiration_of_isolated_cuticular_membranes_and_leaf_discs_ L2 - https://academic.oup.com/jxb/article-lookup/doi/10.1093/jexbot/52.362.1893 DB - PRIME DP - Unbound Medicine ER -