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KMID : 0545120020120020327
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Journal of Microbiology and Biotechnology
2002 Volume.12 No. 2 p.327 ~ p.330
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Identification of FM001 as Plant Growth-Promoting Substance from Acremonium strictum MJN1 Culture
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JUNG, JAE-HAN
SHIN, DONG-MIN/BAE, WOO-CHUL/HONG, SOON-KWANG/SUH, JOO-WON/KOO, SANGHO/JEONG, BYEONG-CHUL
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Abstract
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A plant growth-promoting substance, FM001, was isolated from the culture broth of Acremonium strictum MJN1. The purification steps included solvent extraction, adsorption chromatography using Diaion HP20, TLC on silica, and HLPC using a C-18 column. The purified FM001 enhanced rice seedling growth by 11.1% and 34.0% of the dried weight of the shoots and roots, and also radish growth by 26.5% and 23.7% of the top length and dried weight. FM001 also significantly promoted the growth of red pepper by increasing 32.7% of fruit weight and 11.3% as regards the height. FM001 consisted of C, H, 0, N, and S, and its molecular weight was determined to be 537.78 Da. The structure of FM001 resembled brassinosteriods, and it would appear to have great potential as an effective bio-fertilizer.
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