In avocado and certain wild relatives in Lauraceae, a highly synchronized daily rhythm of floral sex timing promotes cross-pollination between two ...

Plants maintain active stem cell populations throughout their lives, yet these systems are remarkably resilient to genetic, environmental, and mechani…

Spatial control of secondary cell wall synthesis and assembly establishes the wall geometry required for explosive seed dispersal in Cardamine hirsuta frui

Few sights are as emblematic of agriculture as the wheat spike—an elegant, lanceolate-shaped inflorescence that determines grain yield. The highly producti

Leaf anatomy and biochemistry of C3, C2, and C4 plants.

Understanding how positional information within plant tissues shapes developmental programs in real time has long remained a challenge due to technica…

Live-cell imaging reveals characteristic cytological stages of female meiosis in Arabidopsis and allows an assessment of their durations.

Plant cells are connected to their neighbors via plasmodesmata facilitating the exchange of nutrients and signaling molecules. During immune responses, plasmodesmata close, but how this contributes to...

Cobb looks back at the complicated series events that led to the discovery of messenger RNA, highlighting the often difficult problem of attributing credit for scientific advances.

The formation of boundaries separating developmental fields with distinct gene expression and cell fate trajectories is a universal feature of nonc...

Abstract. Plants have evolved carbon concentrating mechanisms (CCMs) to optimize carbon fixation under environmental conditions that increase photorespirat

Polyamines are often associated with ribosomes and are thought to stabilize their integrity. In Arabidopsis, the polyamine thermospermine (tSpm) affects xylem cell fate. tSpm induces translation of SU...

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

The development of a tool to simultaneously measure stomatal conductance and aperture enables investigation into the role of stomatal anatomy in controllin

This study reveals that LBD transcription factors in the cambium drive radial plant growth by regulating PECTATE LYASE-LIKE (PLL) enzymes that remodel cell wall pectin, promoting cell expansion.

Bilateral floral symmetry is a repeated evolutionary innovation governed by the CYCLOIDEA-dependent program, yet how the dorsal-specific CYC expression is initiated and maintained remains elusive. Min...

Single-cell and spatial omics in conifers uncover conserved radial lineages but divergent axial trajectories with angiosperm-like and gymnosperm-specific f