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...

A new research project will use surplus heat from Dåva to farm shrimp and fish with a low carbon footprint.

European Network for Plant Endomembrane Research

Heat shock proteins (HSPs) are evolutionarily conserved, yet their functions in plant growth and development remain incompletely characterized. Here, we demonstrate that a HSP90 co-chaperone PpNudC6.....

We are looking for a Full Professor in the Biophysics chair group, part of Wageningen University & Research (WUR)

Megan Dennis, associate professor in Biochemistry and Molecular Medicine, and Siobhan Brady, professor in the Department of Plant Biology and the Genome Center, are more than an just office neighbors ...

PUBLISHED: 26.01.26 : LAURA TURCHI & MIA CERFONTEYN

Professeur assistant en prétitularisation conditionnelle à la Faculté de biologie et de médecine (FBM) de l’Unil depuis 2022, le jeune chercheur reçoit un coup d’accélérateur pour les recherches qu’il...

Nu ska räkor och fisk odlas på land i Umeå. Tanken är att ersätta importerad mat med lokalproducerad, stärka självförsörjningen och minska utsläppen. – Det här är superspännande. Vi har ett behov av m...

The leaf pavement cells of many plant species develop fascinating jigsaw puzzle-like shapes in which neighboring cells interdigitate with each other, providing an ideal model for the study of cell shape acquisition. We analyzed pavement cell shape complexity in a natural population of European aspen ( Populus tremula ) genotypes and then used a genome-wide association study (GWAS) approach to identify a new candidate gene in cell shape regulation, Potra2n8c18226, encoding the transcription factor MYB305a. We subsequently validated a role for MYB305a in regulating aspen leaf pavement cell shape. We then demonstrated that drought conditions strongly induced MYB305a promoter expression in these cells and provided evidence implying that MYB305a plays a role in simplification of the cell shape in response to drought stress. Finally, we demonstrated negative correlations of pavement cell shape complexity with water-use efficiency, as well as with average precipitation, latitude and longitude of the genotypes' original sampling sites in the natural European aspen population. Taken together, our results suggest that climatic variables affect the shape complexity of pavement cells in aspen leaf and provide a first step towards unravelling the molecular mechanisms controlling pavement cell shape acquisition in this species in response to environmental conditions, by implicating the involvement of the transcription factor MY305a. ### Competing Interest Statement The authors have declared no competing interest. Swedish Research Council, https://ror.org/03zttf063, VR-2020-03420 Kempe Foundation, https://ror.org/05cszw148, JCK-1732, JCK-1912 Knut and Alice Wallenberg Foundation, https://ror.org/004hzzk67 VINNOVA, https://ror.org/01kd5m353 European Research Council, https://ror.org/0472cxd90, ERC-2024-SyG STARMORPH 101166880 Trees and Crops for the Future (TC4F)