The effect of red light and far-red light conditions on secondary metabolism in Agarwood

Journal
BMC Plant Biology
Journal Volume
15
Journal Issue
1
Date Issued
2015-06-12
Author(s)
Kuo, Chien Yen T.
Chen, Chuan Hung
Chen, Shu Hwa
Lu, I. Hsuan
Chu, Mei Ju
Huang, Li-Chun
Lin, Chung Yen
Chen, Long-Fang O.
DOI
URI
URL
Abstract
© 2015 Kou et al. Background: Agarwood, a heartwood derived from Aquilaria trees, is a valuable commodity that has seen prevalent use among many cultures. In particular, it is widely used in herbal medicine and many compounds in agarwood are known to exhibit medicinal properties. Although there exists much research into medicinal herbs and extraction of high value compounds, few have focused on increasing the quantity of target compounds through stimulation of its related pathways in this species. Results: In this study, we observed that cucurbitacin yield can be increased through the use of different light conditions to stimulate related pathways and conducted three types of high-throughput sequencing experiments in order to study the effect of light conditions on secondary metabolism in agarwood. We constructed genome-wide profiles of RNA expression, small RNA, and DNA methylation under red light and far-red light conditions. With these profiles, we identified a set of small RNA which potentially regulates gene expression via the RNA-directed DNA methylation pathway. Conclusions: We demonstrate that light conditions can be used to stimulate pathways related to secondary metabolism, increasing the yield of cucurbitacins. The genome-wide expression and methylation profiles from our study provide insight into the effect of light on gene expression for secondary metabolism in agarwood and provide compelling new candidates towards the study of functional secondary metabolic components.
Subjects
Agarwood | Aquilaria agallocha | Cucurbitacin | Genome | Red light | Secondary metabolism
Publisher
BIOMED CENTRAL LTD
Type
journal article
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