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Experimental induction of 2-(2-phenylethyl) Chromone in aerial roots of Aquilaria sinensis

Tong Zhao, Yi Zhou, Wenyue Li, Xinye Ma, Ruoting Zhan and Weiwen Chen

Agarwood, the valuable spice, is the resin-containing wood formed in Aquilaria, Gonystylus and Gyrinops spp. However, it is facing the problem of wild resource depletion and insufficient artificial production. Investigation and elucidation of the induction and formation processes of the marker ingredients of agarwood, such as sesquiterpenes and chromones, is key to solving this problem. Unlike other studies that have paid more attention to the formation of sesquiterpenes in fresh wood or suspension systems, the present study focused on constructing an aeroponic cultivation system and using it for chromone induction. The experimental results showed that optimal rooting rates and amounts were obtained by cutting off the lateral roots of soil-grtown Aquilaria sinensis seedlings, treating them with 1.5g·L-1 IBA and placing them in the water aeroponic cultivation system. The lateral roots cultivated in 1.2 dS·m-1 MS medium grew vigorously and accumulated the maximum biomass. The GC/MS results showed the formation and continued enrichment of 2-(2-phenylethyl) chromone starting on the fifth day after treatment with methyl jasmonate (MeJA) (50 μM). Therefore, the present study primarily established an aeroponic cultivation system for aerial rooting of A. sinensis that can be used for studying chromone induction; this study also extended the experimental ability for determining how the other marker ingredients of agarwood, chromones, are generated

To Cite this article: Zhao, T., Y. Zhou, W. Li, X. Ma, R. Zhan and W. Chen. 2019. Experimental induction of 2-(2-phenylethyl) Chromone in aerial roots of Aquilaria sinensis. Pak. J. Bot., 51(5): DOI:  

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