Recent Posts

Review. The development of the periderm: the final frontier between a plant and its environment (COPB)

Campilho et al. have written an interesting review about the molecular basis of periderm development. During secondary growth (increase in girth) of most gymnosperms and dicots, the outer epidermal layer is gradually replaced by the periderm, which facilitates gas exchange and defense. Periderm is composed…

Transcriptional regulatory framework for vascular cambium development in Arabidopsis roots ($) (Nature Plants)

Plant vascular tissues continue to proliferate post-embryogenesis via the cambium, a lateral meristem. Until recently the transcription factors regulating meristem maintenance and promoting differentiation were still unknown. In this paper, Zhang et al. identified multiple transcription factors using…

Ray parenchymal cells contribute to lignification of tracheids in developing xylem of Norway spruce (Plant Phys)

Lignin makes up to 27% of the dry weight of wood and is important structurally as well as serving as an effective carbon sink. Lignin is produced from monolignol precursors that are released into the apoplast and then polymerized. Previous studies have suggested that the monolignols are produced not…