Novel antibiofilm chemotherapies target nitrogen from glutamate and glutamine.
Novel antibiofilm chemotherapies target nitrogen from glutamate and glutamine.
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DOI:
10.1038/s41598-018-25401-z
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发表时间:
2018-05-08
影响因子:
4.6
通讯作者:
Kolodkin-Gal I
中科院分区:
文献类型:
--
作者:
Hassanov T;Karunker I;Steinberg N;Erez A;Kolodkin-Gal I
Bacteria in nature often reside in differentiated communities termed biofilms, which are an active interphase between uni-cellular and multicellular life states for bacteria. Here we demonstrate that the development of B. subtilis biofilms is dependent on the use of glutamine or glutamate as a nitrogen source. We show a differential metabolic requirement within the biofilm; while glutamine is necessary for the dividing cells at the edges, the inner cell mass utilizes lactic acid. Our results indicate that biofilm cells preserve a short-term memory of glutamate metabolism. Finally, we establish that drugs that target glutamine and glutamate utilization restrict biofilm development. Overall, our work reveals a spatial regulation of nitrogen and carbon metabolism within the biofilm, which contributes to the fitness of bacterial complex communities. This acquired metabolic division of labor within biofilm can serve as a target for novel anti-biofilm chemotherapies
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