Tong-Da Xu

A kinesin motor complex localizes microtubule-severing proteins to direct gravitropism in Physcomitrium patens.

Gravitropism enables plants to adjust growth direction and architecture in response to gravity. The classical Cholodny-Went theory posits that asymmetric auxin redistribution drives differential growth during gravitropism in seed plants, but the nature of the equivalent asymmetric process in moss protonemata is still u...