eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2017-06-28 14 2 673 677 10.13005/bbra/2493 25430 article Do Yeon Kwon 1 Haeng Hoon Kim 2 Jong Seok Park 3 Sang Un Park 1 Nam Il Park 4 Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea. Department of Well-being Resources, Sunchon National University, Suncheon, Jeollanam-do, 540-742, Korea. Department of Horticulture, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea. Deptartment of Plant Science, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung-si, Gangwon-do 25457, Korea. The hairy root culture of American Skullcap (Scutellaria lateriflora) was studied to investigate the biomass and flavonoids content (baicalin, baicalein and wogonin) in response of various auxin concentrations.The growth rates of the hairy roots varied significantly only at IBA 0.1 mg/L and for all other auxin treatments did not vary significantly. The biomass of hairy roots was 8% higher when treated with IBA 0.1 mg/L and biomass was almost similar and slightly lower levels when treated with various IAA concentration and NAA, respectively. However, the auxins treatments responsed positively to increase flavone production in American Skullcaphairy root culture. The auxin indole-3-butyric acid (IBA) at 1 mg/L performed the best for the accumulation of baicalin and wogonin. The auxin IBA at 1 mg/L accumulated 1.64 and 2.92 times higher baicalin and wogonin, respectively compared to control treatment. Meanwhile, the highest levels of baicalein were observed for hair root cultures in the presence of 1-naphthaleneacetic acid (NAA) at 0.1 mg/L achieving 2.38 times higher than that of accumulated in the control. These findings indicate that hairy root cultures of S. lateriflorausing liquid 1/2MS medium supplemented with auxin could be a valuable alternative approach for flavonoid production. https://www.biotech-asia.org/vol14no2/production-of-bacalin-bacalein-and-wogonin-in-hairy-root-culture-of-american-skullcap-scutellaria-lateriflora-by-auxin-treatment/ Auxins; Flavonoids; Hairy root cultures; Scutellaria lateriflora