A protein complex required for polar growth of rhizobial infection threads

Abstract

Many legumes accommodate rhizobial symbionts via transcellular infection threads. Here the authors show that in Medicago root hairs, polar growth of the infection thread requires a tip-localized protein complex consisting of VPY and VPY-like proteins that are stabilized by the E3 ligase LIN, as well as an exocyst complex subunit.