You will discover the key questions in Microbial Ecotoxicology proposed by Stéphane Vuilleumier, Professor at the University of Strasbourg (France) as well as recent research results of the 3 guest speakers: Weimin Sun, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou (China), Dimitrios Karpouzas, University of Thessaly (Greece) and Karen Wuyts, University of Antwerp (Belgium).