Entries by Linda Palmer

Plant Metabolic Redox Dynamics–Live!

Steinbeck et al. investigate in vivo NAD redox dynamics in Arabidopsis. Plant Cell https://doi.org/10.1105/tpc.20.00241 By Janina Steinbeck and Markus Schwarzländer Background: All organisms rely on their cellular metabolism to live, develop, grow, and procreate. Metabolism provides the energy, building blocks, and reductant (i.e., electrons) needed for these activities. A major proportion of the total electron […]

A Geminivirus Exploits the Host Machinery to Inhibit Methylation-mediated Defense Responses

Chen et al. uncover a strategy used by a DNA geminivirus to exploit the host machinery in order to inhibit methylation-mediated defense responses when establishing infection. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00249.  Background: Geminiviruses belong to one of the largest and most important families of plant viruses, with genomes comprising one or two single-stranded circular DNAs. […]

Chemical labeling of proteins in live plant cells

Iwatate et al. demonstrate that SNAP-tag technology can be used to label plant cell proteins. Plant Cell https://doi.org/10.1105/tpc.20.00439 By Ryu J. Iwatatea,b, Akira Yoshinaria, Noriyoshi Yagia, Wolf B. Frommera,c, and Masayoshi Nakamuraa a Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8601, Japan b School of Medicine, Nagoya University, Showa, Nagoya 466−8550, Japan c […]

The role of arabinogalactans in plant development

López-Hernández et al. reveal that arabinogalactans function in calcium signaling from outside to inside the cell. Plant Cell https://doi.org/10.1105/tpc.20.00027 Federico López Hernández and Paul Dupree University of Cambridge, Department of Biochemistry, Tennis Court Road, Cambridge, CB2 1QW UK Background: Arabinogalactan (AG) is a complex carbohydrate, made of sugars, that surrounds all plant cells. No one […]

Chilling Lessons from Sugar Beets: Switching Sources

Rodrigues et al. found that the source and sink identities of sugar beet shoots vs. taproots are switched upon vernalization (chilling) due to a cold-induced reversal of the phloem stream. Plant Cell https://doi.org/10.1105/tpc.20.00072 By Cristina Martins Rodriguesa, Christina Müdsamb and Benjamin Pommerreniga a Plant Physiology, University of Kaiserslautern, Kaiserslautern, Germany b Biochemistry, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, […]

Oryza sativa RNA-dependent RNA polymerase 6 modulates rice meiosis

Liu et al. connect small RNA biogenesis and meiotic recombination by examining RNA-dependent RNA polymerase 6. The Plant Cell https://doi.org/10.1105/tpc.20.00213   By Changzhen Liu, Yi Shen and Zhukuan Cheng  Background: Meiosis is a specialized cell division that takes place in sexually reproducing eukaryotes and homologous recombination during meiosis increases diversity. During meiosis, homologous recombination is […]

Back to the Roots of Plant Immunity

Rich-Griffin et al. uncover cell type-specific gene networks that function in plant immunity in Arabidopsis roots. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00154   By Charlotte Rich-Griffin1, Ruth Eichmann1,2, Sascha Ott3,4,5 & Patrick Schäfer1,2  1School of Life Sciences, University of Warwick, Coventry, CV4 7AL, United Kingdom 2Institute of Molecular Botany, Ulm University, 89069 Ulm, Germany 3Warwick Medical […]

A damascene moment: the genetic basis of complex petals in Nigella

From the flat white sheets of our favourite weed Arabidopsis thaliana to the colourful cups and spirals of orchids, petals come in a spectacular array of shapes, sizes, colours and textures. These elaborate forms have often evolved to attract pollinators. For example, bee orchids produce petals that mimic female bees to attract amorous males for […]

In the Cold of the Night: how COR27 Regulates HY5 Activity and Integrates Light and Circadian Signals

Zhu et al. discover that the COR27 protein interacts with the central regulators of light-mediated development COP1 and HY5 and plays a critical role in hypocotyl elongation. Plant Cell https://doi.org/10.1105/tpc.20.00192 By Wei Zhu (Southern University of Science and Technology, Shenzhen, China) and Dongqing Xu (Nanjing Agricultural University, Nanjing, China) Background: Light and the circadian clock […]