Entries by Yuanyuan Liu

Pectin modifications regulate plant stem cell dynamics

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Plant development depends on the precise regulation of cell wall mechanics, largely controlled by the methylesterification status of pectin. Although pectin remodeling is known to influence cell expansion and tissue integrity, how its modification is spatially and temporally regulated during cell division in the shoot apical meristem (SAM) has remained unclear. Zhu et al., reveals […]

A conserved pollen signal unifies intra- and interspecific reproductive barriers in Brassicaceae

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Distant hybridization is an important route for crop improvement, enabling the transfer of disease resistance and stress tolerance from wild relatives, but in Brassicaceae it is strongly restricted by stigma-based interspecific incompatibility. While self-incompatibility (SI) signaling via SCR–SRK is well established, the pollen signals responsible for rejecting heterospecific pollen have long been unknown. A recent […]