Recent Posts

Formation of xylem vessels: Role of a WRKY transcription factor

Ge et al explore the function of a transcription factor that functions upstream of a master regulator of tracheary element differentiation. Plant Cell https://doi.org/10.1105/tpc.19.00689 By Shating Ge1, Juan Xu2, and Shuqun Zhang3 1 College of Plant Protection, Nanjing Agricultural University,…

A Catalytic Inhibitor of Cellulose Biosynthesis in the Toolbox

Huang et al. identify a new cellulose synthase inhibitor. Plant Cell https://doi.org/10.1105/tpc.20.00202.  By Lei Huang and Chunhua Zhang  Background: Cellulose is a polymer of b-1,4-D-glucose that serves as an essential source of everyday objects such as cloth, paper, and biofuel. Plant cellulose…

A closed mouth catches no pathogens: how plants sense bacteria and regulate stomata

Chan, Panzeri, et al. show how a receptor-like kinase regulates stomatal immunity by phosphorylating an anion channel that mediates closure of stomata. Plant Cell. https://doi.org/10.1105/tpc.19.00578  By Ching Chana,b and Laurent Zimmerlia aDepartment of Life Science and Institute of Plant Biology,…

The Basis of Glyphosate Resistance in Palmer Amaranth

Molin et al. describe the sequence and gene organization of an extrachromosomal circular DNA element, the eccDNA replicon, that confers resistance to the herbicide glyphosate in amaranths. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00099 By William Molin a and Christopher Saski b, a USDA-ARS,…

A Chloroplast tRNA-Modifying Enzyme Functions in Plant Development

Liu, Ren et al. discover how a natural allele of tRNA-modifying GTPase gene PDD leads to pleiotropic developmental defects in rice. Plant Cell https://doi.org/10.1105/tpc.19.00660.  By Hui Liu and Pingli Lu Fudan University and Henan University  Background: Transfer RNAs (tRNAs) are components…

Seed-Specific Saponin Biosynthesis in Medicago

Ribeiro, Lacchini et al. discover a seed-specific transcription factor that helps determine the composition of the defense compounds saponins in developing Medicago truncatula seeds. Plant Cell https://doi.org/10.1105/tpc.19.00609  By Elia Lacchini, Alain Goossens, and Jacob Pollier VIB-UGent…

TREHALOSE-6-PHOSPHATE SYNTHASE1 – an essential enzyme in Arabidopsis

Fichtner et al. transformed the embryo-lethal mutant tps1 with variants of the TPS1 gene to identify critical domains for function and localization of the gene product. The Plant Cell (2020) https://doi.org/10.1105/tpc.19.00837 By Franziska Fichtner1,2 and John Lunn1, 1Max Planck Institute of Molecular…

Ouch! Plant perception of wounding

Sözen et al. describe two independent MAPK signaling cascades that are each activated with different kinetics, providing an immediate and delayed response to herbivore feeding. The Plant Cell (2020) https://doi.org/10.1105/tpc.19.00917 By Cécile Sözen, Marie Boudsocq and Jean Colcombet, Université…

Repression of FUSCA3 by BASIC PENTACYSTEINE PROTEINS promotes ovule development and coordinates embryo and endosperm growth

Wu et al. found that FUSCA3, which regulates seed development, is localized to specific cells of the ovule and seed coat and is itself regulated by BASIC PENTACYSTEINE (BPC) proteins.  Plant Cell https://doi.org/10.1105/tpc.19.00764 By Sonia Gazzarrini (University of Toronto, Dept. Biological Sciences…