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http://dx.doi.org/10.5423/RPD.2005.11.2.158

Cultivation Conditions for Mass Production of an Antagonistic Bacterium Stenotrophomonas maltophilia BW-13  

Park Jong-Young (College of Natural Resources and Life Science, Dong-A University)
Kim Han-Woo (Center for Biotechnology, Dong-A University)
Kim Hyun-Ju (College of Natural Resources and Life Science, Dong-A University)
Chun Ok-Ju (College of Natural Resources and Life Science, Dong-A University)
Jung Soon-Je (College of Natural Resources and Life Science, Dong-A University)
Choi Woobong (Department Biotechnology and Bioengineering, Dong-Eui University)
Lee Seon-Woo (College of Natural Resources and Life Science, Dong-A University)
Moon Byung-Ju (College of Natural Resources and Life Science, Dong-A University)
Publication Information
Research in Plant Disease / v.11, no.2, 2005 , pp. 158-161 More about this Journal
Abstract
Stenotrophomonas maltophilia BW-13 is a potent biocontrol agent to control crisphead lettuce bottom rot caused by Rhizoctonia solani. To define the optimum conditions for the mass production of the S. maltophilia BW-13, we have investigated optimum culture conditions and effects of various carbon sources on the bacterial growth. The optimum initial pH and temperature were determined as pH $6.0\~7.0 and $35^{\circ}C$, respectively. For the selection of effective carbon source for the mass production, we tested the low molecular carbon sources such as sucrose, glucose, lactose, maltose, manose and the high molecular carbon source such as dough conditioner, rice bran, corn starch, sweet potato starch. As the results, the addition of dough conditioner in a basal medium ($1.25\%\;K_{2}HPO_4,\;0.38\%\;KH_{2}PO_4,\;0.01\%\;MgSO_4{\cdot}7H_{2}O,\;0.5\%\;Yeast extract$) was able to achieve higher cell density and the antifungal activity than others. Therefore, the basal medium containing $3\%$ dough conditioner (named as dough conditioner medium) was finally selected the optimized media for the mass production of BW-13 strain.
Keywords
Antagonistic bacteria; Bottom rot; Rhizoctonia solani; Dough conditioner medium; Stenotrophomonas maltophilia BW-13;
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Times Cited By KSCI : 2  (Citation Analysis)
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