How 'Iron Man' bacteria could help protect the environment“铁人”细菌如何帮助保护环境by Michigan State University密歇根州立大学 This Geobacter cell—which looks a bit like a gray peanut in this microscope image—is speckled with a dark coating of cobalt minerals that would be toxic to many organisms. Credit: Hunter Dulay, MSU这个地球细菌细胞在显微镜图像中看上去有点像灰色的花生，上面散布着深色的钴矿物质，对许多生物体都有毒。图片来源：MSU的Hunter Dulay When Michigan State University's Gemma Reguera first proposed her new research project to the National Science