Isolation of Gibberellins-Producing Fungi from the Root of Several Sesamum indicum Plants
2005
Choi, W.Y. (Kyungpook National University, Daegu, Republic of Korea) | Rim, S.O. (Kyungpook National University, Daegu, Republic of Korea) | Lee, J.H. (Kyungpook National University, Daegu, Republic of Korea) | Lee, J.M. (Kyungpook National University, Daegu, Republic of Korea) | Lee, I.J. (Kyungpook National University, Daegu, Republic of Korea) | Cho, K.J. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Rhee, I.K. (Kyungpook National University, Daegu, Republic of Korea) | Kwon, J.B. (Gyeongbuk Provincial A.T.A., Andong, Republic of Korea) | Kim, J.G. (Kyungpook National University, Daegu, Republic of Korea), E-mail: [email protected]
Gibberellins (GAs) play important roles in plant growth and development. Fifty-four fungi were isolated from the roots of 4 kinds of Sesamum indicum plants, and the production of GAs was spectrophotometrically examined. The number of GA-producing fungi was two strains from S. indicum, four strains from Gold S. indicum, and five strains from Brown S. indicum. Eleven fungi with GAs-producing activity were incubated for seven days in 40 ml of Czapek's liquid medium at 25℃ and 120 rpm, and the amount of each GA in the medium was measured by gas chromatography-mass spectrometery (GC-MS).
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