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Defense Response in Slash Pine: Chitosan Treatment Alters the Abundance of Specific mRNAs

January 1997 , Volume 10 , Number  1
Pages  135 - 137

Mary E. Mason 1 and John M. Davis 2

1USDA Forest Service, Southern Institute of Forest Genetics, Harrison Experimental Forest, 23332 Hwy 67, Saucier MS 39574 U.S.A.; 2School of Forest Resources and Conservation, and Plant Molecular and Cellular Biology Program, Box 110410, University of Florida, Gainesville FL 32611 U.S.A.

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Accepted 19 September 1996.

We used differential display to identify chitosan responsive cDNAs in slash pine cell cultures. Two clones that showed increased mRNA abundance had sequence similarity to genes with roles in major plant defense responses, clone 18 to cinnamic acid 4-hydroxylase, and clone 30 to chitinase.

Additional keywords: cytochrome P450, elicitation, Pinus elliottii.

The American Phytopathological Society, 1997