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Effect of elicitors on the production of gossypol and methylated gossypol in cotton hairy roots

Permanent URL:
http://handle.nal.usda.gov/10113/35059
File:
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Abstract:
The effect of two chemical elicitors, salicylic acid and methyl jasmonate, on the production of gossypol, 6-methoxygossypol, and 6,6'-dimethoxygossypol in Gossypium barbadense hairy roots was examined. Methyl jasmonate, but not salicylic acid, was found to increase the production of gossypol and its methylated forms, but with a concomitant reduction in culture growth. The optimal methyl jasmonate dose was between 100 and 300 μM for hairy roots harvested 7 days after elicitation. After 20 d of induction with 100 μM methyl jasmonate, an eightfold increase in the level of gossypol was observed in elicited cultures compared with control cultures, double the highest gossypol levels previously reported for any cotton tissue. A two to threefold increase in the level of 6-methoxygossypol and a slight increase in the levels of 6,6'-dimethoxygossypol were also observed. Although methyl jasmonate stimulated the production of both optical forms of gossypol, the distribution of the enantiomers was different between elicited and control cultures.
Author(s):
Frankfater, Cheryl R. , Dowd, Michael K. , Triplett, Barbara A.
Subject(s):
Gossypium barbadense , cotton , roots , tissue culture , gossypol , salicylic acid , methyl jasmonate , methylation , metabolites , yields , bioreactors , plant growth , application rate , enantiomers
Format:
p. 341-349.
Note:
Includes references
Source:
Plant cell, tissue, and organ culture 2009 Sept., v. 98, no. 3
Language:
English
Publisher:
Dordrecht : Springer Netherlands
Year:
2009
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.