Michael A. Mahowald

TL;DR: Results reveal that communities are assembled in predictable ways, and differences in community structure between zebrafish and mice arise in part from distinct selective pressures imposed within the gut habitat of each host.

TL;DR: Examining gene expression in discrete generations of dividing cells reveals a novel mechanism governing Th cell fate that initially integrates proliferative and differentiative signals and subsequently maintains stability of the differentiated state.

TL;DR: A simplified model of the human gut microbiota illustrates niche specialization and functional redundancy within members of its major bacterial phyla, and the importance of host glycans as a nutrient foundation that ensures ecosystem stability.

TL;DR: In this article, the authors examined how the intestinal environment affects microbial genome evolution and found that lateral gene transfer, mobile elements, and gene amplification have played important roles in affecting the ability of gut-dwelling Bacteroidetes to vary their cell surface, sense their environment, and harvest nutrient resources present in the distal intestine.