Gum (botany)
historyGum is a sap or other resinous material associated with certain species of the plant kingdom. This material is often polysaccharide based and most frequently is associated with woody plants, particularly under the bark or as a seed coating. The polysaccharide material is typically of high molecular weight and most often highly hydrophilicM.J.A. Schröder, 2003 or hydrocolloidal.
As seed coating
Many gums occur as seed coatings for plant species; the adaptive purpose of some of these gummy coatings is to create a time delayed germination of certain flora seeds. An example of such a gummy coating occurs in the case of Western poison oak, a widespread shrub in western North America.C.M. Hogan, 2008
- Cambium
- Monika J. A. Schröder (2003) Food Quality and Consumer Value: Delivering Food that Satisfies, Springer, 330 pages ISBN 3540439145
- C.Michael Hogan (2008) »"Western poison-oak: Toxicodendron diversilobum", GlobalTwitcher, ed. Nicklas Strömberg
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