TY - JOUR TI - Construction and Validation of A Low-cost, Small-scale, Multiplex Continuous Culturing System for Microorganisms AU - Tonoyan, Lilit AU - Guihéneuf, Freddy AU - Friel, Ruari AU - O'Flaherty, Vincent VL - 10 IS - 21 PY - 2020 DA - 2020/11/05 SP - e3813 C1 - Bio-protocol 2020;10:e3813 DO - 10.21769/BioProtoc.3813 UR - https://doi.org/10.21769/BioProtoc.3813 AB - This protocol details the construction of a simple, low-cost, small-scale, multiplex chemostat system designed for the continuous cultivation of microorganisms in suspension (i.e., bacteria, yeast, microalgae). The continuous culture device can operate at a working volume of 25 ml and allows the run of 8 chemostats in parallel by a single person. It provides a platform for parallel, long-term studies of evolution and adaptation of microorganisms under the stress of antimicrobial agents and/or toxic pollutants. The system complies with the varied needs of researchers for an accessible, highly-throughput and reliable tool that is nevertheless easy to construct, use and operate, and not demanding of space, materials, medium supply and workload. Here, we also validate the use of this system to generate de novo resistance towards a novel antimicrobial and a commonly used antibiotic in an antimicrobial-sensitive model organism. We believe that this "Do It Yourself" (DIY) system may constitute a useful tool to address the global problem of antibiotic resistance and to develop non-antibiotic based therapies. KW - Continuous culturing KW - Chemostat KW - Multiplex platform KW - Adaptive laboratory evolution KW - Antimicrobial resistance JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False