Entries by Plant Cell

A phosphorylation module regulates soybean basal immunity

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Zhang et al. identify a signaling cascade mediating soybean cyst nematode resistance.  https://doi.org/10.1093/plcell/koae008  By Lei Zhang and Xiaoli Guo, National Key Laboratory of Agricultural Microbiology, College of Plant Science and Technology, Huazhong Agricultural University Background: The soybean cyst nematode (Heterodera glycines Ichinohe) is considered the most economically important soybean (Glycine max) pathogen. It is widely […]

An actin nucleation factor in plants

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Kong et al. explore how phototropins regulate actin filaments associated with chloroplasts and unveil CHUP1 as a type of actin nucleator. https://doi.org/10.1093/plcell/koad320 Sam-Geun Kong Kongju National University, Gongju Korea Background: Chloroplasts dynamically adjust their intracellular positioning in response to the intensity and direction of light, mediating the accumulation response, which optimizes photosynthesis under weak light […]

A DNA methylation reader complex regulates rRNA gene expression

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Ren, Gou, Zhuo, Chen et al. revealed that a DNA methylation reader complex recruits an effector protein to regulate variant-specific 45S rRNA silencing. https://doi.org/10.1093/plcell/koad313 By Weiqiang Qian, Peking University Background: Eukaryotic genomes harbor thousands of 45S ribosomal RNA (rRNA) genes that are tandemly arrayed at nucleolus organizer regions (NORs). Some of these rRNA genes are […]

Cyanobacterial PSI assembly

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Dai, Song, Xu et al. identify Ycf51 as a photosystem I assembly factor in cyanobacteria https://doi.org/10.1093/plcell/koad330 By Guo-Zheng Dai, Central China Normal University Question: Background: While the mechanisms of photosystem II biogenesis and the auxiliary proteins involved are well known, we know much less about photosystem I (PSI) assembly. Several PSI assembly factors exist only […]

Maintaining pollen tube integrity in maize

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Zhou et al. investigated pollen tube integrity maintenance mechanisms in maize. The Plant Cell (2023) https://doi.org/10.1093/plcell/koad324 By Liang-Zi Zhou and Thomas Dresselhaus Background: As sperm cell transporting vehicles, pollen tubes of flowering plants grow through the transmitting tissues of the style to delivery immobile sperm cells for double fertilization and seed production. In maize (Zea […]

Variegated Canvases: The Diverse World of Plant Shoot Stem Cells

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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 such as leaves and flowers. Transposons are parasitic, self-replicating genetic elements and evolutionary theory predicts […]

Epitranscriptional regulation of salicylic acid signaling

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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: mRNAs undergo various modifications. N6-methyladenosine (m6A) is the most prevalent epigenetic modification in […]

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

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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 and Mareike Schallenberg-Rüdinger, IZMB – Institute for Cellular and Molecular Botany, Molecular Evolution Lab, […]

Regulatory feedback mechanisms in rice crown root development

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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 Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China Background: Crown roots […]