نتایج جستجو برای: ژن mera
تعداد نتایج: 16424 فیلتر نتایج به سال:
Ximena Duque ([email protected]) Homero Martinez ([email protected]) Jenny Vilchis-Gil ([email protected]) Eugenia Mendoza ([email protected]) Sergio Flores-Hernandez ([email protected]) Segundo Moran ([email protected]) Fabiola Navarro ([email protected]) Victoria Roque-Evangelista ([email protected]) Anayeli Serrano ([email protected]) Robertino M Mera (rm...
Speciation and reactivity of mercury were examined in Berry's Creek estuary downstream of a highly mercury-contaminated U.S. EPA Superfund site during the summers of 2002 and 2003. Surface water samples from Berry's Creek estuary, its confluence with the Hackensack River, and upstream of that confluence were analyzed for total (THg), particulate (PHgT), and dissolved (DHg) mercury, total and pa...
Mercury salts and tellurite are among the most toxic compounds for microorganisms on Earth. Bacterial mercury resistance is established mainly via mercury reduction by the mer operon system. However, specific mechanisms underlying tellurite resistance are unknown to date. To identify new mechanisms for tellurite detoxification we demonstrate that mercury resistance mechanisms can trigger cross-...
Experiments involving mercury resistance mer operon-lacZ fusions, point mutations in the mercuric ion reductase merA gene, and transcomplementation have revealed that in Hg2+-resistant cells, the inducer Hg2+ concentration is rate determining for activation of transcription. mer operon expression is activated by the presence of nanomolar concentrations of Hg2+ in liquid media only when the merc...
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