Boring and Non-Boring Bacterial Filaments (image) Arizona State University Share Print E-Mail Caption A laser confocal microscope image showing cells full of calcium (green) and cells with normal intracellular calcium, which can undergo photosynthesis (red) while infesting a piece of calcium carbonate (gray). Both boring and non-boring bacterial filaments are visible: those extending out of the chip are much larger in diameter. Calcium accumulation is seen mostly toward the ends of filaments. Credit Brandon Guida Usage Restrictions Use only with image credit 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.