Cell Biology: Control of Partner Lifetime in a Plant-Fungus Relationship.

Abstract excerpt

Arbuscules are tree-shaped fungal structures inside plant root cells that facilitate the exchange of nutrients delivered by the fungus with carbon sources from the host. To maintain symbiotic efficiency, plant cells can trigger degeneration of underperforming arbuscules. A recent study reveals the first transcription factor, which induces genes encoding hydrolytic enzymes, to mediate arbuscule degeneration.

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