Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/11119
Title: Antibacterial activity of metabolite produced by <i style="">Paenibacillus polymyxa</i> strain HKA-15 against <i style="">Xanthomonas campestris</i> pv. phaseoli
Authors: Mageshwaran, V
Walia, Suresh
Govindasamy, V
Annapurna, K
Keywords: Antibacterial activity
Biocontrol
<i style="">Paenibacillus polymyxa</i>
Peptide antibiotic
<i style="">Xanthomonas campestris</i> pv. phaseoli
Issue Date: Mar-2011
Publisher: NISCAIR-CSIR, India
Abstract: An antibacterial metabolite extracted from <i style="">Paenibacillus polymyxa</i> HKA-15 showed strong inhibition against <i style="">Xanthomonas campestris</i> pv. phaseoli strains CP-1-1 and M-5. Minimum inhibitory concentration (MIC) of crude extract against strains CP-1-1 and M-5 was found to be 1.7 mg/ml and 1.52 mg/ml, respectively. In UV-Vis range, the absorption peak of crude extract was maximum at 240 nm. The compound is resilience to wide range of temperature, <i>p</i>H, surfactants and organic solvents. The complete loss of activity was observed when crude metabolite was treated with pepsin (400 unit / ml). Characterization of crude metabolite suggested its hydrophobic and peptide nature. Inhibition of <i style="">Xanthomonas campestris</i> pv. phaseoli by peptide like metabolite produced by <i style="">Paenibacillus polymyxa</i> strain HKA-15 under <i style="">in vitro</i> conditions showed ecological and biotechnological potential of strain HKA-15 to control common blight disease in beans.
Description: 229-233
URI: http://hdl.handle.net/123456789/11119
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.49(03) [March 2011]

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