Salicylic Acid Enhances Jaceosidin and Syringin Production in Cell Cultures of Saussurea medusa

Author： Yu Zhen-Zhen   Fu Chun-Xiang   Han Ying-Shan   Li Yong-Xing   Zhao De-Xiu  

Publisher： Springer Publishing Company

ISSN： 0141-5492

Source： Biotechnology Letters, Vol.28, Iss.13, 2006-07, pp. : 1027-1031

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Abstract

Addition of 20 μM salicylic acid to Saussurea medusa cell cultures at day 6 resulted in jaceosidin and syringin productions up to 95 mg l−1 and 631 mg l−1 which were, respectively, about 2.5- and 2.7-fold higher than in the control. The biomass was increased from 8 to 12 g l−1. Expression of chalcone synthase gene (chs) increased sharply after 12 h treatment and was sustained up to 48 h; chalcone isomerase gene (chi) expression reached a peak at 24 h and decreased after 48 h; and phenylalanine ammonia-lyase activity increased by 7.5-fold (96 U mg−1 protein) higher than in the control after 24 h. These results indicate that salicylic acid enhances the production of jaceosidin and syringin which is accompanied by induction of the related phenylpropanoid biosynthetic enzymes.

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