Fukudome et al. explore the significance of Pol II C-terminal phosphorylation https://doi.org/10.1105/tpc.17.00331 By Akihito Fukudome and Hisashi Koiwa Background: In animals and plants, gene expression begins with an enzyme called RNA polymerase II (Pol II), which produces ribonucleic acid (RNA) from the corresponding DNA sequence. Some, namely protein-coding messager RNAs, encode protein information; others are […]
Dolan et al. examine how a complex that regulates gene expression alters the production of phenylpropanoids https://doi.org/10.1105/tpc.17.00282 By Whitney Dolan and Clint Chapple Background: Plants produce a vast array of compounds known as phenylpropanoids from the amino acid phenylalanine. Phenylpropanoids are important to plant growth and fitness. Previously, we identified an Arabidopsis mutant named ref4-3 […]
Schmitz et al. investigate the physiological significance of the glyoxylase system in Arabidopsis https://doi.org/10.1105/tpc.17.00258 By Jessica Schmitz and Veronica G. Maurino BACKGROUND: In every living cell, side reactions of enzymes and spontaneous reactions of metabolites inevitably lead to the formation of toxic by-products. To prevent cellular damage, accumulation of these toxic metabolites needs to be […]
Wang et al. discover unexpected connections between humidity and ion transport using a model that bridges guard cell-to-leaf scales https://doi.org/10.1105/tpc.17.00694 By Maria Papanatsiou Background: Plants rely on stomata on the leaf epidermis for their survival. Stomata are small pores formed between two cells, called guard cells, that allow CO2 entry into the leaf for photosynthesis. […]
Brambilla et al. describe antagonistic signals in rice leaves that control flowering https://doi.org/10.1105/tpc.17.00645 By Vittoria Brambilla Background: A plant’s lifecycle is marked by a major switch occurring when the plant stops producing leaves and starts to make flowers. This switch is called floral transition and represents a major developmental change in many flowering plant species. […]
Gil et al. explore ZTL-mediated protein quality control https://doi.org/10.1105/tpc.17.00612 By Kyung-Eun Gil Background: As sessile organisms, plants have evolved various mechanisms to adapt to environmental changes. Under stressful conditions such as high temperatures, proteins are misfolded and undergo denaturation. The denatured proteins form toxic aggregates in the cell. These toxic protein aggregates must be repaired […]
Broad-Spectrum Disease Resistance in Tomato Zhu et al. examine how a plant receptor protein confers broad-spectrum resistance to various tospovirus pathogens https://doi.org/10.1105/tpc.17.00180 By Min Zhu, Savithramma P. Dinesh-Kumar, and Xiaorong Tao Background: Highly evolved microbes cause devastating diseases in plants and animals. Both plants and animals defend themselves against microbial infections using two specialized immune […]
Kaundal et al. examine how a protein keeps plants safe from invading pathogens and dehydration http://www.plantcell.org/content/29/9/2233 By Amita Kaundal, Vemanna S. Ramu, Kirankumar S. Mysore Background: To cause disease in plants, bacteria must enter plant tissue and multiply. Bacteria and some fungi enter plant tissues through the stomatal pores that mediate gas exchange and water […]
Schmidt et al. demonstrate that nanopore technology can be applied to plant genomes https://doi.org/10.1105/tpc.17.00521 By Schmidt, M. H.-W., Vogel, A., Denton, A. K., Bolger, A. M., Bolger, M. E., and Usadel, B. Background: An organism’s genome contains all the necessary information for its existence. Every genome consists of chromosomes, made of long DNA molecules built […]