Competition-mediated antibiotic induction in the marine bacterium Streptomyces tenjiimariensis

被引:0
|
作者
Slattery M. [1 ]
Rajbhandari I. [1 ]
Wesson K. [1 ]
机构
[1] Dept. of Pharmacognosy and NCNPR, School of Pharmacy, University of Mississippi, University
关键词
Streptomyces; Atoll; Marine Bacterium; Antibiotic Production; Competitive Species;
D O I
10.1007/s002480000084
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学科分类号
摘要
Microbial competition for limiting natural resources within a community is thought to me the selective force that promotes biosynthesis of antimicrobial compounds. The marine bacterium Streptomyces tenjimariensis produces the antibiotics istamycin A and B under select laboratory culture conditions; presumably the compounds serve an ecological role under natural conditions. Here we report results of a noel marine microbial competition experiment that examined the impact of co-culture of marine bacteria on istamycin production by S. tenjimariensis. Twelve of the 53 bacterial species tested (i.e., 22.6%) induced Istamycin production; this antibiotic also inhibited growth of the competitor colonies. These results suggest that marine bacterial metabolites serve an ecological role in countering competitive species.
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页码:90 / 96
页数:6
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