They 'Breathe' Rock (image) University of Southern California Share Print E-Mail Caption Scientist Moh El-Naggar studies bacteria that construct membrane wires to 'breathe' rock. This three-dimensional construct depicts a wire composed of spherical vesicles containing electron-transporting proteins (red and green). Credit Sahand Pirbadian of USC Dornsife and Poorna Subramanian of Caltech Usage Restrictions None 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.