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Variegated Canvases: The Diverse World of Plant Shoot Stem Cells

Bradamante et al. investigate the heterogeneity of stem cells of the shoot apical meristem https://doi.org/10.1093/plcell/koad295 By Vu Nguyen, Gabriele Bradamante, Ortrun Mittelsten Scheid and Ruben Gutzat Background: In plants, stem cells in the shoot apical meristem (SAM) produce new organs…

Epitranscriptional regulation of salicylic acid signaling

Lee, Liu, Kim et al. demonstrate that a plant m6A reader dampens stress responses. By Keun Pyo Lee, Kaiwei Liu, Eun Yu Kim, and Chanhong Kim CAS Center for Excellence in Molecular Plant Sciences (CEMPS), Chinese Academy of Sciences (CAS) https://doi.org/10.1093/plcell/koad300 Background:…

Co-evolution of the RNA editing factor PPR78 and its targets

Lesch et al. reveal that the mitochondrial RNA editing factor PPR78 of Physcomitrium patens is conserved among mosses despite the loss of its two known C-to-U editing sites due to the additional editing target ccmFNeU1465RC.  https://doi.org/10.1093/plcell/koad292 By Elena Lesch, Volker Knoop…

RPT2a regulates inflorescence meristem indeterminacy

 Yao, Wang et al. identify the mechanisms regulating inflorescence meristem determinacy in Arabidopsis. https://doi.org/10.1093/plcell/koad249 By Wang Jinsong Yao1, Yi Peng Wang1, Jing Peng1, Pei Pei Yin1, Hengbin Gao1, Li Xu1, Thomas Laux2, Xian Sheng Zhang1, and Ying Hua Su1 1Shandong…

Regulatory feedback mechanisms in rice crown root development

Geng et al. reveal a feedback system that orchestrates the expression of genes controlling crown root development in rice (Oryza sativa) and uncover a molecular rheostat of this system. https://doi.org/10.1093/plcell/koad318 By Leping Geng and Yu Zhao National Key Laboratory of Crop Genetic…

Cell wall-loosening agents control fruit softening in tomato

Su et al. identify two cell wall-loosening agents that synergistically regulate tomato fruit softening. https://doi.org/10.1093/plcell/koad291 By Guanqing Su1, Yanna Shi1, 2, 3 1College of Agriculture & Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310058, China 2Zhejiang…

A key player in glutamate export from Arabidopsis chloroplasts

The et al. identified a chloroplast glutamate exporter in Arabidopsis thaliana. The Plant Cell (2023). By Samantha The and Mechthild Tegeder, School of Biological Sciences, Washington State University, Pullman, WA, 99164, USA https://doi.org/10.1093/plcell/koad310 Background: Plants produce…

MdBPC2 regulates apple growth

Zhao et al. discovered that MdYUC2a and MdYUC6b are targets of H3K27me3 modification mediated by MdBPC2-MdLHP1, which regulates auxin biosynthesis during apple growth. https://doi.org/10.1093/plcell/koad297 Haiyan Zhao, Shuyuan Wan, Yanni Huang, Xiaoqiang Li, Tiantian Jiao, Zhijun Zhang, Baiquan…

Examination of the plant cytokinesis machinery reveals the rules of cellular asymmetry

Schmidt-Marcec, Parish and colleagues characterize members of the MACERATOR (MACET) family of proteins in the context of cell division.  https://doi.org/10.1093/plcell/koad304  By Sharol Schmidt-Marcec, Alyssa Parish, Tetyana Smertenko, Matthew Hickey, Bernard M.A.G. Piette, Andrei Smertenko Institute…