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Comparison of CEPA (2-chloroethyl phosphonic acid) induced responses in juvenile Eucalyptus nitens, E. globulus and E. obliqua: a histochemical and anatomical study

Citation

Eyles, A and Mohammed, CL, Comparison of CEPA (2-chloroethyl phosphonic acid) induced responses in juvenile Eucalyptus nitens, E. globulus and E. obliqua: a histochemical and anatomical study, IAWA Journal, 23, (4) pp. 419-430. ISSN 0928-1541 (2002) [Refereed Article]

Abstract

Kino veins and/or pockets are a characteristic defect of some Eucalyptus species and have long been recognized as sources of degrade in eucalypt timber. In a comparative study, the course of both histochemical and anatomical responses of three juvenile Eucalyptus species (E. nitens, E. globulus and E. obliqua) to treatment with an ethylene-releasing compound, 2-chloroethyl phosphonic acid (CEPA), were examined. Kino veins were induced in both E. obliqua and E. globulus. The hormone treatment failed to induce kino vein formation in E. nitens. The traumatic parenchyma (that later differentiated into kino veins) was not always derived from the initials of the vascular cambium as reported in previous studies of E. globulus. Instead, the traumatic parenchyma appeared to be produced from the meristematic activity of the inner phloem parenchyma. In addition, kino veins found in 2- to 3-year-old E. globulus were mostly included in the phloem and not in the xylem as generally observed in mature E. globulus.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Forestry Pests, Health and Diseases
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood Plantations
Author:Eyles, A (Dr Alieta Eyles)
Author:Mohammed, CL (Associate Professor Caroline Mohammed)
ID Code:23716
Year Published:2002
Web of Science® Times Cited:9
Deposited By:Agricultural Science
Deposited On:2002-08-01
Last Modified:2003-05-14
Downloads:0

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