Recent Posts

A module controlling endoreduplication and cell growth in Arabidopsis

Jiang et al. discover a module controlling endoreduplication, a process in which DNA replication occurs in the absence of mitosis. Background: Organ size is coordinately regulated by both cell number and cell size. Endoreduplication is often associated with cell size in plants and animals, but the…

Bypassing reproductive barriers in hybrid seeds

Huc et al. discover a method for bypassing the triploid block via chemically induced epimutagenesis using 5-Azacytidine. Background: Hybridization of plants with different chromosome numbers is often hindered by reproductive barriers established after fertilization. This is because the correct balance…

An RNA splicing factor regulates temperature-responsive flowering

Chang et al. discover the role of an evolutionarily conserved splicing factor in regulating temperature-responsive flowering in Arabidopsis. Background: Eukaryotic genes contain non-coding sequences termed introns that intervene between coding sequences. After being transcribed into pre-mRNA, these…

The coordination between stomata and cuticles

Yang et al. reveal the coordination between stomatal development and cuticle formation. Plant Cell https://doi.org/10.1093/plcell/koab260 By Shao-Li Yang and Chin-Min Kimmy Ho Background: The plant epidermis is composed of functionally specialized cells, such as the valves on the leaf surface known…

The queen’s crown: Team-building the stigma at the top of the pistil

Ballester et al. reveal how stigma development in Arabidopsis requires the formation of different higher-order transcription factor complexes of increasing complexity. https://doi.org/10.1093/plcell/koab236  By Cristina Ferrándiz Instituto de Biología Molecular y Celular de Plantas, CSIC-UPV Background:…

Winter is coming: It’s time to “CRY”

Li et al. reveal how the cryptochrome CRY2 regulates freezing tolerance in Arabidopsis. https://doi.org/10.1093/plcell/koab215  By Youping Li Background: Cold acclimation via exposure to non-lethal low temperatures enhances frost resistance in plants. This process requires light; however, we know…

Pectate lyases prune pectin to potentiate stomatal dynamics

Chen et al. uncover the effects of a pectate lyase-like gene on cell wall mechanics and cell pressurization in guard cells. The Plant Cell (2021) https://doi.org/10.1093/plcell/koab161  By Yintong Chen and Charles T. Anderson Department of Biology, The Pennsylvania State University, University…

EAR domain-containing transcription factors attract PRC2 repression machinery to chromatin

Baile et al. discover how EAR domain-containing transcription factors recruit the polycomb group complex PRC2 to mediate gene repression in Arabidopsis. The Plant Cell (2021) https://doi.org/10.1093/plcell/koab139  By Fernando Baile and Myriam Calonje Institute of Plant Biochemistry and Photosynthesis…

Regulation of protein secretion in tapetal cells

Goodman et al. uncover the roles of ESCRT (Endosomal Sorting Complex Required for Transport) proteins in the exocytosis of plasma membrane and secreted proteins in tapetal cells during pollen development. The Plant Cell (2021) https://doi.org/10.1093/plcell/koab132  By Marisa Otegui Background:…