Fig. 6

A Microbiome diversity varies throughout the host gut, increasing from the small to the large intestine. BAscaris infection is associated with a reduction in microbial diversity at the site of infection in the jejunum. C Microbes in the jejunum are major determinants of the composition of the Ascaris microbiome. Ascaris larvae do not inherit bacteria and thus do not determine the adult worm microbiome. D The Ascaris microbiome is less diverse than that of its host. Although worm-associated microbes are derived from the host, Ascaris has a distinct microbiome. E There is no difference in microbial diversity between adult male and female worms, and worm sex was not found to be a major determinant of Ascaris-microbiome composition