Recent Posts

RNA polymerase II transcription: cleave to elongate

Antosz et al. show that the ability of RNA polymerase II to cleave transcripts is required for proper transcription and plant growth. Wojciech Antosz and Klaus Grasser, University of Regensburg https://doi.org/10.1105/tpc.19.00891   Background: In plants as in other eukaryotes, nuclear…

Phosphorus sensing in Chlamydomonas by TORC1 subunit LST8

Couso et al. developed a TOR kinase assay for Chlamydomonas and show how subunit LST8 senses phosphorus availability and modulates cell growth. Plant Cell https://doi.org/10.1105/tpc.19.00179 By I. Couso, M.E. Pérez-Pérez, M.M. Ford, E. Martínez-Force, L.M. Hicks, J.G. Umen, and J.L. Crespo. Background:…

The Arabidopsis GPT1 transporter is Essential in Both Plastids and Peroxisomes

Baune et al. explore the roles of a metabolite transporter in two different locations in a single cell. Plant Cell https://doi.org/10.1105/tpc.19.00959  By Marie-Christin Baune, Hannes Lansing, Antje von Schaewen University of Münster, Germany   Background: The oxidative pentose-phosphate…

Regulation of Carotenoid Pigmentation in Flowers

Stanley et al. Identify a protein in the model plant monkeyflower (Mimulus) required for chromoplast development and carotenoid biosynthesis. Plant Cell https://doi.org/10.1105/tpc.19.00755  By Lauren Stanley and Yao-Wu Yuan, University of Connecticut  Background: Carotenoids are yellow, orange,…

SHORTROOT coordinates phloem development via two pathways

Kim et al. examine how plants coordinate sieve element and companion cell development. Plant Cell https://doi.org/10.1105/tpc.19.00455 By Hyoujin Kim1 and Ji-Young Lee1,2, School of Biological Sciences, College of Natural Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826,…

To Catch Crop Genes in Batch

Liu et al. demonstrate an integration of massive genetic mapping and high-throughput targeted mutagenesis to accelerate functional gene identification in maize. The Plant Cell (2020) https://doi.org/10.1105/tpc.19.00934 By Hai-Jun Liu & Jianbing Yan, National Key Laboratory of Crop Genetic Improvement,…

HY5 Activates Rather Than Represses its Direct Targets, Including its Negative Regulator SPA1

Burko et al. carry out detailed phenotypic and molecular analyses of constitutive activator and repressor HY5 fusion proteins to identify its direct targets. Plant Cell https://doi.org/10.1105/tpc.19.00772 Background: Plants are highly responsive to environmental factors, and differences in light,…

Protein Delivery Address Codes Are Part of the Circuitry Adjusting Tissue-Specific Plastid Proteomes

Chu et al. demonstrate that a special address code is required for efficient protein import into root plastids. Plant Cell https://doi.org/10.1105/tpc.19.00702 By Hsou-min Li, Institute of Molecular Biology, Academia Sinica, Nankang, Taipei 11529, Taiwan Background: Chloroplasts are the most famous…

Family dynamics within the seed: Identification of new cell types in maize endosperm

Doll et al. examine the structure of maize seeds and identify a distinct cell type in the endosperm next to the embryo.  https://doi.org/10.1105/tpc.19.00756 Nicolas M. Doll, Peter M. Rogowsky and Thomas Widiez Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB…