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Chitosan oligosaccharide and salicylic acid up-regulate gene expression differently in relation to the biosynthesis of artemisinin in Artemisia annua L.

Paper ID Volume ID Publish Year Pages File Format Full-Text
34761 45047 2012 4 PDF Available
Title
Chitosan oligosaccharide and salicylic acid up-regulate gene expression differently in relation to the biosynthesis of artemisinin in Artemisia annua L.
Abstract

Artemisia annua L. is a traditional Chinese medicinal plant used for treating fevers and malaria. The primary anti-malarial component is the sesquiterpene lactone peroxide artemisinin, which is accumulated in glandular trichomes. This study investigated the effect of treating plants with chitosan oligosaccharide (COS) and salicylic acid (SA) on both artemisinin production and gene expression related to the biosynthetic pathway of artemisinin. COS up-regulated the transcriptional levels of the genes ADS and TTG1 2.5 fold and 1.8 fold after 48 h individually, whereas SA only up-regulated ADS 2.0 fold after 48 h. LC–MS analysis showed that COS treatment increased artemisinin production in leaves slightly. These results suggest different responses of Artemisia annua to COS and SA treatment. The limited effects of COS and SA on artemisinin production reveal that elicitors may not be a universal method for increasing artemisinin yield or the up-regulation takes longer than 48 h to be effective.

Keywords
Artemisia annua L.; Artemisinin; Chitosan oligosaccharide; Elicitor; Gene expression; Salicylic acid
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Chitosan oligosaccharide and salicylic acid up-regulate gene expression differently in relation to the biosynthesis of artemisinin in Artemisia annua L.
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 47, Issue 11, November 2012, Pages 1559–1562
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us