ISSN:
1432-2285
Keywords:
Resin acids
;
Wounding
;
Pine
;
Secretory structures
;
Reactivation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary After wounding the cortical tissues of twigs of Pinus pinaster, we investigated changes in diterpene resin acid content and the ultrastructural modification of secretory structures. There was an increase in total resin acid content in the cortical and woody tissues located near the wound. Not all resin acids responded in the same way, but in wounded tissues the amounts of isopimaric acid and of the group of dehydroabietic, levopimaric and palustric acids significantly increased. The composition of cortical tissues becomes closely related to that of woody tissues. The resin acid enrichment of cortical tissues is correlated with the reactivation of the epithelial cells of the resin ducts and the de novo synthesis of resin acids demonstrated by labelling with 14CO2.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00225354
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