Sourc­ing uri­nary tract in­fec­tions

Down to Earth - - SCIENCE -

PES­TI­CIDE EX­PO­SURE can im­pact the for­ag­ing be­hav­iour of bum­ble­bees on wild­flow­ers, chang­ing their flo­ral pref­er­ences and hin­der­ing their abil­ity to learn the skills needed to ex­tract nec­tar and pollen. The study by Canada's Univer­sity of Guelph is the first to ex­plore how pes­ti­cides may im­pact the abil­ity of bum­ble­bees to for­age from com­mon wild­flow­ers. Bees and other in­sects pol­li­nate many of the world's im­por­tant food crops and wild plants, and their dra­matic de­cline world­wide has raised se­ri­ous con­cerns about food se­cu­rity and bio­di­ver­sity. Ef­fect of low lev­els of pes­ti­cide on the bees' abil­ity to learn may im­pair the essen­tial pol­li­na­tion ser­vices bees pro­vide to both crops and wild plants. Func­tional Ecol­ogy March 14 R E S E A R C H E R S H AV E dis­cov­ered that the bac­terium, Escherichi­a­coli, the main cause of re­cur­rent uri­nary tract in­fec­tions, en­ters the uri­nary tract and at­taches it­self to the sur­face caus­ing in­flam­ma­tions. This new find­ing could help in the for­mu­la­tion of new drugs and treat­ment, as al­most ev­ery sec­ond woman suf­fers from a blad­der in­fec­tion at some point in her life. Men too are af­fected, though less fre­quently. Na­ture Com­mu­ni­ca­tions, March 7

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