RT Journal Article T1 Interactions with Arsenic: Mechanisms of Toxicity and Cellular Resistance in Eukaryotic Microorganisms A1 De Francisco, Patricia A1 Martín González, Ana María A1 Rodriguez Martín, Daniel A1 Díaz del Toro, Silvia AB Arsenic (As) is quite an abundant metalloid, with ancient origin and ubiquitous distribution, which represents a severe environmental risk and a global problem for public health. Microbial exposure to As compounds in the environment has happened since the beginning of time. Selective pressure has induced the evolution of various genetic systems conferring useful capacities in many microorganisms to detoxify and even use arsenic, as an energy source. This review summarizes the microbial impact of the As biogeochemical cycle. Moreover, the poorly known adverse effects of this element on eukaryotic microbes, as well as the As uptake and detoxification mechanisms developed by yeast and protists, are discussed. Finally, an outlook of As microbial remediation makes evident the knowledge gaps and the necessity of new approaches to mitigate this environmental challenge. PB MPDI SN 1660-4601 YR 2021 FD 2021-11-17 LK https://hdl.handle.net/20.500.14352/4779 UL https://hdl.handle.net/20.500.14352/4779 LA eng NO Ministerio de Economía, Industria y Competitividad (MINECO) DS Docta Complutense RD 1 may 2024