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Gas permeability of plant cuticles : Oxygen permeability.
Planta 1982; 155(4):310-5P

Abstract

Cuticles from the adaxial surface of Citrus aurantium L. leaves and from the pericarp of Lycopersicon esculentum L. and Capsicum annuum L. were isolated enzymatically and their oxygen permeability was determined. Isolated cuticles were mounted between a gaseous and an aqueous compartment with the physiological outer side of the membrane facing the gaseous compartment. Permeability for oxygen was characterized by permeability (P) and diffusion (D) coefficients. P and D were independent of the driving force (gradient of oxygen concentration) across the cuticle, thus, Henry's law was obeyed. P values for the diffusion of oxygen varied between 3·10(-7) (Citrus), 1.4·10(-6) (Capsicum), and 1.1·10(-6) (Lycopersicon) m·s(-1). Extraction of soluble lipids from the cuticles increased the permeability. By treating the cutin matrix and the soluble lipids as resistances in series, it could be demonstrated that the soluble lipids were the main resistance for oxygen permeability in Citrus cuticles. However, in Lycopersicon and Capsicum, both the cutin matrix and the soluble lipids determined the total resistance. P values were not affected by either the proton concentration (pH 3-9) or the cations (Na(+), Ca(2+)) present at the morphological inner side of the cuticles. It is concluded that the water content of cuticles does not affect the permeability properties for oxygen. Partition coefficients indicated a high solubility of oxygen in the cuticle of Citrus. The data suggest a solubility process in the cuticle of Citrus with respect to oxygen permeation.

Authors+Show Affiliations

Institut für Botanik und Mikrobiologie, Lehrstuhl für Botanik der Technischen Universität, Arcisstrasse 21, D-8000, München 2, Federal Republic of Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24271865

Citation

Lendzian, K J.. "Gas Permeability of Plant Cuticles : Oxygen Permeability." Planta, vol. 155, no. 4, 1982, pp. 310-5.
Lendzian KJ. Gas permeability of plant cuticles : Oxygen permeability. Planta. 1982;155(4):310-5.
Lendzian, K. J. (1982). Gas permeability of plant cuticles : Oxygen permeability. Planta, 155(4), pp. 310-5. doi:10.1007/BF00429457.
Lendzian KJ. Gas Permeability of Plant Cuticles : Oxygen Permeability. Planta. 1982;155(4):310-5. PubMed PMID: 24271865.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Gas permeability of plant cuticles : Oxygen permeability. A1 - Lendzian,K J, PY - 1982/01/15/received PY - 1982/05/17/accepted PY - 2013/11/26/entrez PY - 1982/8/1/pubmed PY - 1982/8/1/medline SP - 310 EP - 5 JF - Planta JO - Planta VL - 155 IS - 4 N2 - Cuticles from the adaxial surface of Citrus aurantium L. leaves and from the pericarp of Lycopersicon esculentum L. and Capsicum annuum L. were isolated enzymatically and their oxygen permeability was determined. Isolated cuticles were mounted between a gaseous and an aqueous compartment with the physiological outer side of the membrane facing the gaseous compartment. Permeability for oxygen was characterized by permeability (P) and diffusion (D) coefficients. P and D were independent of the driving force (gradient of oxygen concentration) across the cuticle, thus, Henry's law was obeyed. P values for the diffusion of oxygen varied between 3·10(-7) (Citrus), 1.4·10(-6) (Capsicum), and 1.1·10(-6) (Lycopersicon) m·s(-1). Extraction of soluble lipids from the cuticles increased the permeability. By treating the cutin matrix and the soluble lipids as resistances in series, it could be demonstrated that the soluble lipids were the main resistance for oxygen permeability in Citrus cuticles. However, in Lycopersicon and Capsicum, both the cutin matrix and the soluble lipids determined the total resistance. P values were not affected by either the proton concentration (pH 3-9) or the cations (Na(+), Ca(2+)) present at the morphological inner side of the cuticles. It is concluded that the water content of cuticles does not affect the permeability properties for oxygen. Partition coefficients indicated a high solubility of oxygen in the cuticle of Citrus. The data suggest a solubility process in the cuticle of Citrus with respect to oxygen permeation. SN - 0032-0935 UR - https://www.unboundmedicine.com/medline/citation/24271865/Gas_permeability_of_plant_cuticles_:_Oxygen_permeability_ DB - PRIME DP - Unbound Medicine ER -
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