Schreier et al. uncover the surprising role played by the glucan phosphatase family member, LIKE SEX4 1, as a protein scaffold on the starch granule surface that binds β-amylases. Plant Cell https://doi.org/10.1105/tpc.19.00089. By Tina B. Schreier1,2 and Samuel C. Zeeman1 1 Institute of Molecular Plant Biology, ETH Zurich, CH-8092 Zurich, Switzerland. 2 Current address: Department […]
Parsons et al. successfully separate early to late Golgi cisternae to reveal the sequential localization of resident proteins and the sequence features that guide transmembrane proteins within the Golgi stack. Plant Cell https://doi.org/10.1105/tpc.19.00081 By Harriet T. Parsons (University of Cambridge) and Tim J. Stevens (MRC Laboratory of Molecular Biology) Background: The Golgi apparatus is often […]
Xu et al. identify metabolites targeted by selection during maize domestication. Plant Cell https://doi.org/10.1105/tpc.19.00111 By Guanghui Xu State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Key Laboratory of Biology and Genetic Improvement of Maize, Beijing Key Laboratory of Crop Genetic Improvement, Center for Crop Functional Genomics and Molecular Breeding, China Agricultural […]
Zhao et al. identify RESURRECTION 1 as a suppressor of free1 that negatively regulates endomembrane trafficking. Plant Cell https://doi.org/10.1105/tpc.19.00003 By Qiong Zhao The Chinese University of Hong Kong Background: Plants have an evolutionarily conserved endomembrane system, which includes the endoplasmic reticulum, Golgi apparatus, nuclear envelope, endosomes, multivesicular bodies (MVBs), and vacuoles. MVBs are unique membrane-bound […]
Anderson et al. identify a second site modifier that rescues a maize developmental mutant and report that it encodes a homolog of Arabidopsis ENHANCED DISEASE RESISTANCE4, providing insight into the integration of developmental control and immune responses. Plant Cell https://doi.org/10.1105/tpc.18.00840 By Alyssa Anderson, Sarah Hake Background: The progression from a seed to a full-grown plant […]
Rosquete et al., identified a TRAPPIII tethering complex in plants and uncovered the role of the AtTRAPPC11 subunit in post Golgi trafficking and stress response. Plant Cell https://doi.org/10.1105/tpc.19.00110 By Michel R. Rosquete and Georgia Drakakaki Background: Intracellular trafficking is a finely regulated process responsible for the transport of molecules between cell membrane compartments, such as […]
Amorim-Silva et al. identify scaffolding proteins that optimize BR signaling. Plant Cell https://doi.org/10.1105/tpc.19.00150 By Vitor Amorim-Silva and Miguel Botella Background: The plant hormone Brassinosteroid (BR) is essential for proper growth. This hormone is extracellularly perceived by plasma membrane Receptor Like-Kinases, causing transphosphorylation of their cytosolic domains and the subsequent phosphorylation/dephosphorylation of signaling components. These events […]
Jiang et al. use time-lapse 3D imaging, computer vision, and mathematical modeling to quantify root system architecture. Plant Cell https://doi.org/10.1105/tpc.19.00015 By Ni Jiang and Christopher Topp, Donald Danforth Plant Science Center Background: Root systems are the literal foundations of most plants and have an enormous influence on plant health and productivity. However, they are […]
Sun et al. investigate how carboxysomes are constructed and regulated in cyanobacteria. Plant Cell https://doi.org/10.1105/tpc.18.00787 By Luning Liu Background: All cells are composed of well-defined compartments to encase enzymes and reactions to increase the efficiency of biological processes. In bacteria that can perform photosynthesis, such as cyanobacteria, the specialized microcompartments are carboxysomes. The carboxysome contains […]