Short-term memory of warm daytime in Arabidopsis
The Plant Cell: In a NutshellMurcia et al. discover how plants store information about daytime temperatures to control stem growth during the night.
By Germán Murcia, Cristina Nieto, Romina Sellaro, Salomé Prat, and Jorge J. Casal
Background: Plants increase their stature in response to warm temperatures by enhancing stem…
An N-terminally truncated NLR is functional
The Plant Cell: In a NutshellWu et al. uncover the unexpected role of the truncated NLR NRG1C in negatively regulating plant immunity by antagonizing its full-length NRG1 neighbors.
Background: Plants utilize sophisticated innate immune systems to fight against pathogens. Their genomes encode abundant immune receptors to detect…
A ubiquitinated SNARE protein functions in nutrient stress responses
The Plant Cell: In a NutshellHasegawa, Reyes et al. discover a link between the ubiquitination of a key membrane trafficking regulator and carbon/nitrogen nutrient stress.
Background: Ubiquitination is a post-translational modification that functions in numerous cellular processes by serving as a molecular signal, such as protein…
A module controlling endoreduplication and cell growth in Arabidopsis
The Plant Cell: In a NutshellJiang 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
The Plant Cell: In a NutshellHuc 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
The Plant Cell: In a NutshellChang 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
The Plant Cell: In a NutshellYang 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
The Plant Cell: In a NutshellBallester 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”
The Plant Cell: In a NutshellLi 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…