Biological Sciences / Plant Biology -- New results matching your topic search. https://www.pnas.org/action/doSearch?af=R Proceedings of the National Academy of Sciences: Plant Biology Proceedings of the National Academy of Sciences en-US http://www.atypon.com/images/atypon_logo_small.gif http://www.atypon.com https://www.pnas.org/doi/abs/10.1073/pnas.2614796123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 44, November 2026. <br/>SignificancePlants must continuously adjust root growth to changing nutrient conditions, yet how environmental signals are quantitatively translated into developmental responses remains unclear. We show that distinct nutrient stresses converge on iron ... A spatially deployable iron redox rheostat tunes root growth under nutritional stress doi:10.1073/pnas.2614796123 2026-10-26T07:00:00Z Joaquín ClúaAna BerbelCristina UrbezFrancisco MadueñoYves PoirierMiguel A. Blázquezahttps://ror.org/01460j859Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas–Universitat Politècnica de València, Valencia 46022, Spainbhttps://ror.org/019whta54Department of Plant Molecular Biology, Biophore Building, University of Lausanne, Lausanne 1015, Switzerlandchttps://ror.org/051escj72Institut des Sciences des Plantes de Montpellier, University of Montpellier, CNRS, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Institut Agro, Montpellier 34060, France Proceedings of the National Academy of Sciences 123 44 2026-11-03T08:00:00Z 2026-11-03T08:00:00Z 10.1073/pnas.2614796123 https://www.pnas.org/doi/abs/10.1073/pnas.2614796123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2611539123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 43, October 2026. <br/>SignificanceIn nature, plants experience a complex mixture of stresses, yet most of our understanding of plant gene regulation comes from the application of single stresses to genetically uniform individuals. We profiled transcriptomes of wildArabidopsis ... Biotic response networks are an important organizer of the transcriptome in wild Arabidopsis thaliana populations doi:10.1073/pnas.2611539123 2026-10-19T07:00:00Z Ana Paula Leite MontalvãoKevin D. MurrayIlja BezrukovNatalie BetzLucas P. HenryPaloma DuranPatrick BoppertMartina KolbFabrice RouxJoy BergelsonDetlef WeigelWei Yuanahttps://ror.org/0243gzr89Department of Molecular Biology, Max Planck Institute for Biology Tübingen, Tübingen 72076, Germanybhttps://ror.org/0190ak572Department of Biology, New York University, New York, NY 10003chttps://ror.org/0190ak572Center for Genomics and Systems Biology, New York University, New York, NY 10003dhttps://ror.org/01ahyrz84Laboratoire des Interactions Plantes-Microrganismes, CNRS, Institut national de recherche pour l‘agriculture, l‘alimentation et l‘environnement, Université de Toulouse, Castanet Tolosan 31326, Franceehttps://ror.org/03a1kwz48Institute for Bioinformatics and Medical Informatics, University of Tübingen, Tübingen 72076, GermanyHaim AshkenazyTien-Hao ChangChoghag DemijirianRémi DuflosAlejandra Duque-JaramilloKatrin FritschiAndrew GlossAnette HabringKatharina KleinEric LadermanIrene LecciaRoxane LionHanna MärkleBaptiste MayjonadeTimothy C. MortonAnkita PandeyAlexandre PerratKamal RadharamananAngelique RatSonia SilvaManmeet SinghDaniel de SouzaHannah Whitehurst Proceedings of the National Academy of Sciences 123 43 2026-10-27T07:00:00Z 2026-10-27T07:00:00Z 10.1073/pnas.2611539123 https://www.pnas.org/doi/abs/10.1073/pnas.2611539123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2535927123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/>SignificanceSelenium (Se) is an essential micronutrient for humans. Dietary Se deficiency remains a global health concern due to low capacity of many crops to accumulate bioavailable Se, dependence of plants on soil Se, and uneven distribution of Se in ... Shading enhances Se accumulation in tea leaves through promoting CsMYB7-like-mediated conversion of Se (VI) to Se (IV) doi:10.1073/pnas.2535927123 2026-10-14T07:00:00Z Jianhui YeAn YanQiting FangYijie LiuChunyang Liahttps://ror.org/00a2xv884Zhejiang Key Laboratory of Horticultural Crop Quality Improvement, Tea Research Institute, Zhejiang University, Hangzhou 310058, China Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2535927123 https://www.pnas.org/doi/abs/10.1073/pnas.2535927123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2602491123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/>SignificanceHusk leaf blades surrounding the ear directly influence grain filling, making husk leaf architecture critical for yield. We identifyHusk Extended Leaf Blade 1(HELD1) as a major regulator of husk leaf blade extension. A transposon insertion ... A transposon inserted into HELD1 repressed maize husk leaf blade extension during maize domestication doi:10.1073/pnas.2602491123 2026-10-16T07:00:00Z Xing JianLi DongXuan ZhangAnkush SangraZongliang ChenJiacheng LiuYang SongGuorui FanLe XuTianyu FengMin XuQianwen ZhangYiwen YouZhaoying WangRobert J. SchmitzAndrea GallavottiZhongwei Linahttps://ror.org/04v3ywz14State Key Laboratory of Maize Bio-Breeding, National Maize Improvement Center, China Agricultural University, Beijing 100193, Chinabhttps://ror.org/04v3ywz14Department of Crop Genetics and Breeding, China Agricultural University, Beijing 100193, ChinacDepartment of Genetics, University of Georgia, Athens, GA 30602dhttps://ror.org/05vt9qd57Waksman Institute of Microbiology, Rutgers University, Piscataway, NJ 08854 Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2602491123 https://www.pnas.org/doi/abs/10.1073/pnas.2602491123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2604945123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/>SignificanceTo survive, organisms must sense available nutrients and adjust their metabolic output accordingly. One way to accomplish this is by linking nutrition to translation. Here, we demonstrate that plants lacking a sulfur group in three tRNAs ... Loss of tRNA uridine thiolation affects mRNA translation, protein production, and metabolite accumulation in Arabidopsis doi:10.1073/pnas.2604945123 2026-10-16T07:00:00Z Arnaud DannfaldAdrien CadoudalMarie-Christine CarpentierRémy MerretQuentin RigalJérôme VialaretAurore AttinaJana KindermansSonia Garcia LlorensChristina BerrissouLisa TritschAnna KoprivovaBastian WelterVirginie MarchandPhilipp WesthoffAlexandre DavidChristophe HirtzYuri MotorinJean-Jacques FavoryStanislav KoprivaLaurence DrouardJean-Marc Deragonahttps://ror.org/038207k30CNRS Laboratoire Génome et Développement des Plantes-UMR5096, Perpignan 66860, Francebhttps://ror.org/038207k30Université de Perpignan Via Domitia, Laboratoire Génome et Développement des Plantes-UMR5096, Perpignan 66860, Francechttps://ror.org/00pg6eq24Institut de biologie moléculaire des plantes-CNRS, Université de Strasbourg, Strasbourg 67084, Francedhttps://ror.org/051escj72Institute for Regenerative Medicine and Biotherapy-Plateforme de Protéomique Clinique, Institut des Neurosciences de Montpellier, Centre Hospitalier Universitaire de Montpellier, INSERM, Université de Montpellier, CNRS, Montpellier 34090, Franceehttps://ror.org/00rcxh774Institute for Plant Sciences and Cluster of Excellence on Plant Sciences, University of Cologne, Cologne 50674, Germanyfhttps://ror.org/04yc2e502Université de Lorraine, Service Mutualisé de Plateformes Ingénierie-Biologie-Santé en Lorraine, Epitranscriptomic RNA Sequencing Core facility and Ingénierie Moléculaire, Cellulaire et Physiopathologie, UMR 7365 CNRS-Université de Lorraine, Nancy 54000, Franceghttps://ror.org/024z2rq82Plant Metabolism and Metabolomics Facility, Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf 40225, Germanyhhttps://ror.org/051escj72Institut de Recherche en Cancérologie de MontpellierInstitut de Recherche en Cancérologie de Montpellier, University of Montpellier, Institut Régional du Cancer de Montpellier, INSERM, Montpellier 34090, France Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2604945123 https://www.pnas.org/doi/abs/10.1073/pnas.2604945123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2611706123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/>SignificanceSuccessful pollen tube germination and growth is required to initiate production of all of our foundational seed and fruit crops but heat stress during the pollination season diminishes crop productivity because it reduces pollen quantity and ... Pollen tube integrity is critical for thermotolerance in tomato and is enhanced by loss of SlRALF1 doi:10.1073/pnas.2611706123 2026-10-15T07:00:00Z Rasha Althiab AlmasaudSorel V. Yimga OuonkapJared IngramYahir OsegueraMohamed Alkassem AlosmanCassandra TravisJiaying HouAtticus HenryMichelle MedinaNathalie OulhenKelsey PryzeNicholas DaSilvaCamila E. MolinaGeorge P. LisiJames B. PeaseRavishankar PalaniveluGary M. WesselAlison DeLongMark A. JohnsonaDepartment of Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI 02912bhttps://ror.org/03m2x1q45School of Plant Sciences, University of Arizona, Tucson, AZ 85721chttps://ror.org/00rs6vg23Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Aronoff Laboratory, Columbus, OH 43210 Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2611706123 https://www.pnas.org/doi/abs/10.1073/pnas.2611706123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2616035123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/>SignificanceDeposition of a functional suberin layer in response to wounding requires specific wound-induced peroxidases that function to polymerize phenolic monomers into a lignin-like poly(phenolic) polymer. Without the deposition of poly(phenolics), ... Poly(phenolic) deposition is a prerequisite to poly(aliphatic) deposition for functional potato suberin doi:10.1073/pnas.2616035123 2026-10-16T07:00:00Z Mina EsfandiariIdunnuayo AlabiSangeeta DhaubhadelMark A. Bernardsahttps://ror.org/02grkyz14Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canadabhttps://ror.org/02e9w7q14London Research and Development Centre, Agriculture and Agri-Food Canada, London, ON N5V 4T3, Canada Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2616035123 https://www.pnas.org/doi/abs/10.1073/pnas.2616035123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2634024123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. <br/> Correction for Johnson et al., Antagonistic regulation of nitrogen and drought signaling mediated by NIN-like protein 7 transcription factor in Arabidopsis thaliana doi:10.1073/pnas.2634024123 2026-10-12T07:00:00Z Proceedings of the National Academy of Sciences 123 42 2026-10-20T07:00:00Z 2026-10-20T07:00:00Z 10.1073/pnas.2634024123 https://www.pnas.org/doi/abs/10.1073/pnas.2634024123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2607372123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. <br/>SignificanceGrasses are a diverse and ecologically important plant clade whose pollen is morphologically indistinguishable under standard optical microscopy. As a result, grass fossil pollen remains an untapped resource in paleoecological and evolutionary ... Deep learning of fossil pollen morphology reveals 25,000 y of ecological change in eastern African grasslands doi:10.1073/pnas.2607372123 2026-10-02T07:00:00Z Marc-Élie AdaiméShu KongMichael A. UrbanF. Alayne Street-PerrottDirk VerschurenSurangi W. Punyasenaahttps://ror.org/047426m28Department of Plant Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801bhttps://ror.org/01pp8nd67Chief Data and AI Office, Office of Digital and Innovation, Smithsonian Institution, Washington, DC 20024cDepartment of Artificial Intelligence, Faculty of Information Science and Computing, University of Macau, Macau 999078, Chinadhttps://ror.org/05nkf0n29Department of Biology, University of New Brunswick, Fredericton, NB E3B 5A3, Canadaehttps://ror.org/053fq8t95Department of Geography, Department of Geography, Faculty of Science and Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, United Kingdomfhttps://ror.org/00cv9y106Limnology Unit, Department of Biology, Ghent University, Gent B-9000, Belgium Proceedings of the National Academy of Sciences 123 41 2026-10-13T07:00:00Z 2026-10-13T07:00:00Z 10.1073/pnas.2607372123 https://www.pnas.org/doi/abs/10.1073/pnas.2607372123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2615485123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. <br/>SignificanceTheArabidopsisroot cap is continuously renewed, but how local auxin dynamics are coupled to root cap cell maturation remains unclear. We show that the root cap-specific NAC transcription factor SOMBRERO (SMB) regulates auxin homeostasis and ... The NAC transcription factor SOMBRERO controls auxin gradients for columella root cap maturation and turnover doi:10.1073/pnas.2615485123 2026-10-07T07:00:00Z Pengfei WangZhongyuan LiuYuling ZhouLinjun SunJunxian HeLinlin QiByung-Ho Kangahttps://ror.org/00t33hh48State Key Laboratory of Agrobiotechnology, Areas of Excellence Centre for Plant Vacuole Biology and Biotechnology, Centre for Cell and Developmental Biology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, Chinabhttps://ror.org/03hz5th67Faculty of Synthetic Biology, Institute of Emerging Agricultural Technology, Shenzhen University of Advanced Technology, Shenzhen 518107, China Proceedings of the National Academy of Sciences 123 41 2026-10-13T07:00:00Z 2026-10-13T07:00:00Z 10.1073/pnas.2615485123 https://www.pnas.org/doi/abs/10.1073/pnas.2615485123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2616716123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. <br/>SignificancePlants integrate diverse external and internal cues to survive environmental stresses. Extracellular Adenosine 5′-triphosphate (eATP) acts as a central “danger” signal that rapidly triggers defense responses upon stress perception. Here, we ... A receptor-like kinase pair integrates extracellular ATP and salicylic acid signaling to activate plant immunity doi:10.1073/pnas.2616716123 2026-10-06T07:00:00Z Mengran YangDaewon KimJae hyo SongAbigail M. JensenKiwamu TanakaGary Staceyahttps://ror.org/02ymw8z06Division of Plant Science and Technology, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211bhttps://ror.org/00saywf64Division of Applied Life Science (Brain Korea 21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 52828, Republic of Koreachttps://ror.org/05dk0ce17Department of Plant Pathology, Washington State University, Pullman, WA 99164 Proceedings of the National Academy of Sciences 123 41 2026-10-13T07:00:00Z 2026-10-13T07:00:00Z 10.1073/pnas.2616716123 https://www.pnas.org/doi/abs/10.1073/pnas.2616716123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2618289123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. <br/>SignificanceApomixis potentially leads to the accumulation of deleterious mutations, although facultative sexuality and pollen-based purging can mitigate this process in some plant apomicts. But what happens when a species reduces its sexual reproduction? ... Apomixis imposes evolutionary costs by reducing recombination efficiency and disrupting segregation doi:10.1073/pnas.2618289123 2026-10-05T07:00:00Z Nan WangWeiping ZhangYuting YangSiqi ZhangLijun ChaiWenwu GuoQiang XuYongfeng ZhouMartin LascouxXiuxin Dengahttps://ror.org/0313jb750State Key Laboratory of Tropical Crop Breeding, Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, Chinabhttps://ror.org/023b72294National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, Chinachttps://ror.org/034t30j35State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Chinadhttps://ror.org/048a87296Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Uppsala 75236, Swedenehttps://ror.org/003qeh975State Key Laboratory of Tropical Crop Breeding, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China Proceedings of the National Academy of Sciences 123 41 2026-10-13T07:00:00Z 2026-10-13T07:00:00Z 10.1073/pnas.2618289123 https://www.pnas.org/doi/abs/10.1073/pnas.2618289123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2612869123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 40, October 2026. <br/>SignificancePlants must respond to insect herbivory by activating local and systemic immunity. Calcium (Ca2+) signaling plays a central role in this defense network, yet long-distance herbivory signaling inArabidopsisis largely attributed to glutamate ... The Ca2+ channel CYCLIC NUCLEOTIDE GATED CHANNEL13 regulates vasculature-mediated systemic Ca2+ and jasmonate signaling on herbivory doi:10.1073/pnas.2612869123 2026-09-29T07:00:00Z Misha KumariRamgopal PrajapatiMahendra PawarBhawana SharmaBianca Maria Orlando MarchesanoYang YangYong-Fei WangAlex CostaJyothilakshmi Vadasseryahttps://ror.org/04zw11527Biotechnology Research and Innovation Council-National Institute of Plant Genome Research, New Delhi 110067, Indiabhttps://ror.org/00wjc7c48Department of Biosciences, University of Milan, Milan 20133, Italychttps://ror.org/04ew43640State Key Laboratory of Plant Trait Design, Chinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, ChinadInstitute of Biophysics, National Research Council of Italy, Milan 20133, Italy Proceedings of the National Academy of Sciences 123 40 2026-10-06T07:00:00Z 2026-10-06T07:00:00Z 10.1073/pnas.2612869123 https://www.pnas.org/doi/abs/10.1073/pnas.2612869123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2613911123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 40, October 2026. <br/>SignificanceRising global temperatures pose an escalating threat to rice yield. While heat-shock transcription factors (HSFs) are recognized as central regulators of heat stress responses, the mechanisms underlying their precise posttranslational ... Thermosensor OsTT3.1 enhances rice thermotolerance by degrading OsGSK2 to reduce OsHsfB2c phosphorylation and nuclear translocation doi:10.1073/pnas.2613911123 2026-09-30T07:00:00Z Jiaqi HouJin YangTingyu ChenYating ZhaoDaoyi TuZetian GuoMutian YangZiyi WangYan ZengNachuan ZhangLijia Liahttps://ror.org/033vjfk17State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China Proceedings of the National Academy of Sciences 123 40 2026-10-06T07:00:00Z 2026-10-06T07:00:00Z 10.1073/pnas.2613911123 https://www.pnas.org/doi/abs/10.1073/pnas.2613911123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2620626123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 40, October 2026. <br/>SignificancePIN auxin transporters are critical for generating morphogenic gradients that govern plant development. While their central hydrophilic loop (HL) is known to recruit diverse trans-acting effectors, the structural coordination within the loop ... A conserved β-sheet motif mediates PIN2 hydrophilic loop–loop interactions to regulate PIN2 dynamics doi:10.1073/pnas.2620626123 2026-09-30T07:00:00Z Kwang-Ho MaengHyung-Taeg Choahttps://ror.org/04h9pn542Department of Biological Sciences, Seoul National University, Seoul 08826, Korea Proceedings of the National Academy of Sciences 123 40 2026-10-06T07:00:00Z 2026-10-06T07:00:00Z 10.1073/pnas.2620626123 https://www.pnas.org/doi/abs/10.1073/pnas.2620626123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2600459123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 39, September 2026. <br/>SignificanceAngiosperms have evolved fertilization recovery mechanisms to adapt to common fertilization failures in nature. The central cell was found to regulate fertilization recovery, yet its role in this process remains largely unexplored. Here, we ... Central cell–produced salvagers promote fertilization recovery and interspecific hybridization doi:10.1073/pnas.2600459123 2026-09-24T07:00:00Z Chun-Lin YanHong LinKai-Xun GuanTing FengJie YangJie QianShu-Yan ChenHong-Ju LiJiang-Guo MengaChongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing 400715, Chinabhttps://ror.org/02aee5m12State Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China Proceedings of the National Academy of Sciences 123 39 2026-09-29T07:00:00Z 2026-09-29T07:00:00Z 10.1073/pnas.2600459123 https://www.pnas.org/doi/abs/10.1073/pnas.2600459123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2614473123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 39, September 2026. <br/>SignificanceMany organisms, from chemotactic cells to growing neurons, sense their environment without a central processor, instead integrating signals locally across their surface. How this distributed sensing gives rise to coherent directional responses ... Nonlinear distributed sensing of light patterns leads to perceptual distortions in plants doi:10.1073/pnas.2614473123 2026-09-22T07:00:00Z Ahron KempinskiAmir PoratMathieu RivièreYasmine Merozahttps://ror.org/04mhzgx49School of Plant Science and Food Security, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, IsraelbThe Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israelchttps://ror.org/04mhzgx49Department of Condensed Matter, School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israeldhttps://ror.org/013meh722Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, United Kingdomehttps://ror.org/04bgbbh33Aix Marseille Université, CNRS, Institut Universitaire des Systémes Thermiques Industriels, Marseille 13453, France Proceedings of the National Academy of Sciences 123 39 2026-09-29T07:00:00Z 2026-09-29T07:00:00Z 10.1073/pnas.2614473123 https://www.pnas.org/doi/abs/10.1073/pnas.2614473123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2623483123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 39, September 2026. <br/>SignificancePlant cells can enlarge &gt;100-fold during growth, a process controlled by proteins called expansins. Plants have many expansin proteins that are difficult to study in isolation and whose specific activities and properties have remained elusive. ... Functional divergence of plant expansins as revealed by genetic complementation of root-hair tip growth in Arabidopsis thaliana doi:10.1073/pnas.2623483123 2026-09-23T07:00:00Z Ke ZhouNathan K. HeplerMoyan JiaDaniel J. Cosgroveahttps://ror.org/04p491231Department of Biology, 208 Mueller Laboratory, The Pennsylvania State University, University Park, PA 16802 Proceedings of the National Academy of Sciences 123 39 2026-09-29T07:00:00Z 2026-09-29T07:00:00Z 10.1073/pnas.2623483123 https://www.pnas.org/doi/abs/10.1073/pnas.2623483123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2607481123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 38, September 2026. <br/>SignificanceThe repressive Polycomb protein complex mediates gene silencing, yet its involvement in regulating transcriptionally active genes remains elusive. We identified that plant chromodomain H3K27me3 reader LIKE HETEROCHROMATIN PROTEIN1 (LHP1) binds ... Dynamic Polycomb–CBC crosstalk orchestrates mRNA production at transcriptionally active loci in plants doi:10.1073/pnas.2607481123 2026-09-15T07:00:00Z Yuanyuan XieLifeng DuZhijuan ChenXiaoyi LiDanhua JiangFangqing ZhaoZicong Liahttps://ror.org/03x08qn04State Key Laboratory of Microbial Technology, the Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, Shandong Key Laboratory of Precision Molecular Crop Design and Breeding, School of Life Sciences, Shandong University, Qingdao 266237, Chinabhttps://ror.org/034t30j35State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, Chinachttps://ror.org/03zd3ta61School of Life Science, Shanxi Normal University, Taiyuan, Shanxi 030031, Chinadhttps://ror.org/01tgyzw49Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore Proceedings of the National Academy of Sciences 123 38 2026-09-22T07:00:00Z 2026-09-22T07:00:00Z 10.1073/pnas.2607481123 https://www.pnas.org/doi/abs/10.1073/pnas.2607481123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2621033123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 38, September 2026. <br/>SignificanceAcceleration of nonphotochemical quenching has been proposed as a means to enhance crop photosynthetic efficiency in C3 species, but whether this strategy has potential in C4 species, which include several major crops, remains unclear. Here, ... Faster relaxation of nonphotochemical quenching in C4 than in C3 species doi:10.1073/pnas.2621033123 2026-09-18T07:00:00Z Lucía Arce CubasAsuka NakamuraLauana Pereira de OliveiraRichard L. VathR. Shawn AbrahamsJulia WalterCristina Rodrigues Gabriel SalesEmmanuel L. BernardoYuri Nakajima MunekageStephen P. LongJohannes Kromdijkahttps://ror.org/013meh722Department of Plant Sciences, University of Cambridge, Cambridge CB2 3EA, United Kingdombhttps://ror.org/047426m28Photosynthesis and Food Security, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801chttps://ror.org/02qf2tx24Department of Bioscience, School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337, Japandhttps://ror.org/047426m28Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801ehttps://ror.org/030s54078Crop Physiology Division, Institute of Crop Science, College of Agriculture and Food Science, University of the Philippines Los Baños, Laguna 4031, Philippines Proceedings of the National Academy of Sciences 123 38 2026-09-22T07:00:00Z 2026-09-22T07:00:00Z 10.1073/pnas.2621033123 https://www.pnas.org/doi/abs/10.1073/pnas.2621033123?af=R