Abstract
An endophytic bacterium was isolated from Chinese medicinal plant Scutellaria baicalensis Georgi. The phylogenetic and physiological characzterization indicated that the isolate, strain ES-2, was Bacillus amyloliquefaciens, which produced two families of secondary metabolites with broad-spectrum antibacterial and antifungal activities. Culture filtrate of ES-2 displayed antagonism against some phytopathogenic, food-borne pathogenic and spoilage bacteria and fungi owing to the existence of antimicrobial compounds. A HPLC-MS analysis showed two series of ion peaks from the culture filtrate. A further electrospray ionization/collision-induced dissociation spectrum revealed that the two series ion peaks represented different fengycin homologues and surfactin homologues, respectively, which had a potential for food preservation and the control of several fungal plant diseases.
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Acknowledgements
The authors would like to thank the financial support from High-Tech fund of Jiangsu Province, PR China (BG2003311) and Key-Subject fund of Anhui Science and Technology University (YZD2004–16).
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Sun, L., Lu, Z., Bie, X. et al. Isolation and characterization of a co-producer of fengycins and surfactins, endophytic Bacillus amyloliquefaciens ES-2, from Scutellaria baicalensis Georgi. World J Microbiol Biotechnol 22, 1259–1266 (2006). https://doi.org/10.1007/s11274-006-9170-0
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DOI: https://doi.org/10.1007/s11274-006-9170-0