BBC Earth (Asia) - - Science -

Sci­en­tists from Ed­in­burgh Univer­sity have de­vel­oped a ge­net­i­cally mod­i­fied, harm­less strain of E. coli that glows green in the pres­ence of cer­tain ex­plo­sives. The re­searchers hope that the bac­te­ria could be dropped onto sus­pected landmine sites, po­ten­tially re­plac­ing the prac­tice of find­ing mines us­ing metal detectors or snif­fer dogs. The mod­i­fied bac­te­ria pro­duce a pro­tein that binds to TNT, which is found in many land­mines. This re­ac­tion then ‘switches on’ a gene that cre­ates lu­ciferase, an en­zyme which causes fire­flies and other bac­te­ria to emit light.

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