Gut fungi might be linked to obesity and inflammatory bowel disorders

Yeast and bacteria can team up to cause trouble

Candida tropicalis

SHAPE SHIFTER  Candida tropicalis usually grows as a harmless roundish budding yeast (green), but in the presence of two bacteria it stretches into long filaments (brown) that may provoke inflammation in intestines.

Djspring/wikimedia commons (CC BY-SA 3.0)

Fungi may affect gut health in unexpected ways, new research suggests.