Entries by Nancy Eckardt

Phosphate Translocation from Roots to Shoots is Precisely Modulated

Ye et al. discover a protein that mediates phosphate translocation and is dependent on environmental phosphate supply. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00845 By Qing Ye and Yi-Fang Chen Background: Phosphorus is a major essential nutrient for plant growth and development, and phosphate (Pi) is the main form of phosphorus that is absorbed by plants and translocated […]

Function of m6A in Arabidopsis

Wei et al. Study m6A binding protein ECT2 in Arabidopsis. The Plant Cell (2018). https://doi.org/10.1105/tpc.17.00934 By Lian-Huan Wei Background: N6-methyladenosine (m6A) is the most abundant chemical modification of eukaryotic messenger RNA (mRNA). The regulation of m6A modification plays important roles in plant development, but the mechanism is not completely understood. m6A is installed by the […]

Decoding RNA Methylation Regulates Trichome Branching

Scutenaire et al. show that a YTH domain protein acts as a reader of m6A mRNA modifications, thereby playing crucial roles in trichome branching, likely by acting on mRNAs in the cytosol. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00854 By J. Scutenaire and C. Bousquet-Antonelli Background: Messenger RNA (mRNA) molecules carry nongenetically encoded chemical modifications, the most abundant […]

Digging into the Big Family of Plant m6A Readers

Arribas-Hernández et al. find that the N6-methyladenosine RNA binding proteins ECT2, ECT3, and ECT4 are required for the correct timing of leaf formation and correct leaf and trichome morphogenesis. Plant Cell (2018). https://doi.org/10.1105/tpc.17.00833. By Laura Arribas-Hernández Background: Recent research has uncovered critical regulatory functions, in plants and animals, of specific chemical modifications of messenger RNA […]

Regulation of Photosynthesis: Shedding Light on Protein Acetylation

Koskela and Brünje et al. identified a chloroplast protein acetyltransferase, which is required for the regulation of light harvesting in Arabidopsis. Plant Cell (2018) https://doi.org/10.1105/tpc.18.00155. by Minna M. Koskela, Annika Brünje, Iris Finkemeier, Paula Mulo   Background: Plants harvest the energy of sunlight through photosynthesis and thereby enable all aerobic life on Earth. A complex photosynthetic […]

Rice Panicle Morphogenesis: Intercommunication Between Grain Number and Size

Guo et al. investigate the trade-off between seed number and seed size of rice. Plant Cell (2018) https://doi.org/10.1105/tpc.17.00959. By Tao Guo, Ke Chen, Nai-Qian Dong, Chuan-Lin Shi, Wang-Wei Ye, Ji-Ping Gao, Jun-Xiang Shan, Hong-Xuan Lin Background: Rice is one of the main staple cereal crops worldwide that feeds more than half of the global population […]

A New Component Regulating ABA Signaling

Wang et al. find that EAR1 is a general negative regulator of ABA signaling. https://doi.org/10.1105/tpc.17.00875 By Kai Wang, Jigang Li and Zhizhong Gong Background: Abscisic acid (ABA) signaling in plants controls many biological processes, such as seed germination, seedling root growth, and stomatal movement. In the current understanding of ABA signaling, PYR/PYL/RCAR ABA receptor proteins, […]

miRNA-Mediated Regulation of Germination

Guo et al. show that miR9678 affects seed germination in wheat by generating phased siRNAs and modulating abscisic acid/gibberellin signaling. Plant Cell https://doi.org/10.1105/tpc.17.00842 By Guanghui Guo and Yingyin Yao Background:  Seed germination is important for grain yield and quality and rapid, near-simultaneous germination in a crop helps in cultivation; however, cultivars that germinate too readily […]

A Brake For Nitrogen Starvation Responses

Kiba et al. focus on transcriptional regulation of nitrogen starvation responses. Plant Cell https://doi.org/10.1105/tpc.17.00810 By Takatoshi Kiba Background: Nitrogen availability in the soil profoundly affects plant growth and productivity, and thus crop yield. To meet expanding food demands, the global use of nitrogen fertilizer in agricultural production has increased dramatically since the 1950s and the […]