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미생물,발효,생물공학 : Auxin과 항진균물질을 생산하는 식물생장촉진근권세균의 분리동정 및 특성
권도형 ( Kwon Do Hyeong ),최준형 ( Choe Jun Hyeong ),정희경 ( Jeong Hui Gyeong ),임종희 ( Im Jong Hui ),주길재 ( Ju Gil Jae ),김상달 ( Kim Sang Dal ) 한국응용생명화학회 2004 Applied Biological Chemistry (Appl Biol Chem) Vol.47 No.1
This study was investigated the physiological properties of auxin-producing bacteria that have plant growth promoting activity and plant pathogen antagonistic ability. Auxin-producing bacteria were isolated from field soils of Gyeongsan, Korea. Selected strains were identified as a Pseudomonas fulva N2l and a Pantoea agglomerans K35 by morphological and physiological test, and Biolog (Microlog) system. Auxins were determined by Salkowski in vitro test and mungbean adventitious root induction bioassay. Also produced indole-3-acetic acid (IAA) was identified by TLC. During cell growth, auxin production were highest in their idiophase after log phase and 35℃ at pH 7.5.