Contents

01 July 2011
Vol 333, Issue 6038

About The Cover

Cover image expansion

COVER Differential interference contrast microscopy image showing the gut microbial community of the termite Reticulitermes tibialis. Coursing among larger protozoa (ranging in size from 10 to 60 micrometers) are thin, wavy bacteria known as spirochetes, as well as viruses not visible at this magnification. Using a microfluidic digital polymerase chain reaction approach, Tadmor et al. examine the interactions between uncultured bacteria and their associated viruses in the termite hindgut. See page 58. Image: Jared R. Leadbetter, California Institute of Technology