Engineering Bacteroides (image) Cell Press Share Print E-Mail Caption The development of genetic parts to precisely program the human commensal gut bacterium Bacteroides thetaiotaomicron lays the foundation for microbiome engineering. Credit Mimee and Tucker et al./Cell Systems 2015 Usage Restrictions Credit Required. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.