Genes & Cells

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a Venus flytrap

The genes that allow a Venus flytrap (Dionaea muscipula) to catch and digest insects might have their roots in basic plant defense, researchers suggest. 

Bacteroides fragilis and intestinal cells

MESSAGE RECEIVED  A microbe called Bacteroides fragilis (left image, boxed) sends out messages that calm the immune system, quelling inflammation in mouse intestinal cells (left, bottom half). These messages rest in pouches called outer membrane vesicles (yellow bubbles in reconstruction of microbe at right). Defective genes linked to Crohn’s disease might make it hard for people to get such messages.

Genes & Cells

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