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.2602575123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 24, June 2026. <br/>SignificanceCellulose, a fundamental structural component of plant cell walls, is synthesized by cellulose synthase complexes (CSCs) and represents a critical herbicide target. While synthetic cellulose biosynthesis inhibitors (CBIs) like isoxaben and ... A fungal natural product that inhibits plant cellulose biosynthesis by disrupting cellulose synthase complexes doi:10.1073/pnas.2602575123 2026-06-09T07:00:00Z Zhongshou WuLu LiuWenyu HanXingbo CaiPixian XiaoZuodong SunChunsheng YanSilvana ReidYun ChenZhonghua MaYi TangSteven E. Jacobsenahttps://ror.org/05s5qx907State Key Laboratory of Rice Biological Breeding, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Chinabhttps://ror.org/046rm7j60Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA 90095chttps://ror.org/046rm7j60HHMI, University of California at Los Angeles, Los Angeles, CA 90095dhttps://ror.org/046rm7j60Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, CA 90095ehttps://ror.org/046rm7j60Department of Chemical and Biomolecular Engineering, University of California at Los Angeles, Los Angeles, CA 90095fhttps://ror.org/046rm7j60Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California at Los Angeles, Los Angeles, CA 90095 Proceedings of the National Academy of Sciences 123 24 2026-06-16T07:00:00Z 2026-06-16T07:00:00Z 10.1073/pnas.2602575123 https://www.pnas.org/doi/abs/10.1073/pnas.2602575123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2609325123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 24, June 2026. <br/>SignificanceLegumes rely on symbiotic nitrogen fixation to sustain productivity in both agricultural and natural ecosystems, yet the mechanisms that promote the formation of nitrogen-fixing root nodules remain poorly understood. This study uncovers a ... A long-distance signaling loop promotes soybean nodulation and productivity doi:10.1073/pnas.2609325123 2026-06-08T07:00:00Z Jingbo DuanJinbin WangRunze GuoChancelor B. ClarkZhuojun LuoXiaochong LiLeonie TrabertXing-Qi HuangW. Andy TaoNatalia DudarevaGary StaceyBlake C. MeyersJianxin Maahttps://ror.org/02dqehb95Department of Agronomy, Purdue University, West Lafayette, IN 47907bhttps://ror.org/02dqehb95Center for Plant Biology, Purdue University, West Lafayette, IN 47907chttps://ror.org/02dqehb95Department of Biochemistry, Purdue University, West Lafayette, IN 47907dhttps://ror.org/02ymw8z06Division of Plant Science & Technology, University of Missouri, Columbia, MO 65211ehttps://ror.org/05rrcem69Genome Center and Department of Plant Sciences, University of California, Davis, CA 95616 Proceedings of the National Academy of Sciences 123 24 2026-06-16T07:00:00Z 2026-06-16T07:00:00Z 10.1073/pnas.2609325123 https://www.pnas.org/doi/abs/10.1073/pnas.2609325123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2612171123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 24, June 2026. <br/>SignificanceDetecting and repairing damaged DNA is critical for maintaining cellular function. These processes occur within chromatin, yet how chromatin effectors (proteins that modulate the properties and compositions of chromatin) facilitate this ... Arabidopsis YEATS domain proteins facilitate DNA double-strand break repair via homology-directed pathways doi:10.1073/pnas.2612171123 2026-06-08T07:00:00Z Neeraja VegesnaLaura Bouza-MorcilloClara BourbousseYasaman Jami-AlahmadiEn LiMaherun NisaAna Marie S. PalancaJames A. WohlschlegelJulie A. Lawahttps://ror.org/03xez1567Plant Molecular and Cellular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037bhttps://ror.org/046rm7j60Department of Biological Chemistry, University of California, Los Angeles, CA 90095chttps://ror.org/0168r3w48Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093 Proceedings of the National Academy of Sciences 123 24 2026-06-16T07:00:00Z 2026-06-16T07:00:00Z 10.1073/pnas.2612171123 https://www.pnas.org/doi/abs/10.1073/pnas.2612171123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2613743123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 24, June 2026. <br/> Two-component plant defenses are better than one doi:10.1073/pnas.2613743123 2026-06-08T07:00:00Z Tam Duc MaiJonathan Gershenzonahttps://ror.org/02ks53214Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena D-07745, GermanybFaculty of Forestry and Wood Sciences, University of Life Sciences, Prague 165 21, Czech Republic Proceedings of the National Academy of Sciences 123 24 2026-06-16T07:00:00Z 2026-06-16T07:00:00Z 10.1073/pnas.2613743123 https://www.pnas.org/doi/abs/10.1073/pnas.2613743123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2528515123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificancePlant growth and shape are controlled by the mechanics of primary cell walls. Nevertheless, the minimal features required to provide strength remain unclear. Here, we compare the structure and mechanics of regenerating cell walls in plant ... Synthetic pectin–cellulose nanofiber capsule recapitulates the mechanical properties of a regenerating plant cell wall doi:10.1073/pnas.2528515123 2026-06-01T07:00:00Z Cyril GrandjeanRavi ShankerSarah A. PfaffAnran MaoJordi ChanSophie AsnaciosAtef AsnaciosSulin ZhangDaniel J. CosgroveEnrico CoenAnna J. SvaganPauline Durand-Smetahttps://ror.org/05f82e368Université Paris Cité, CNRS, Matière et systèmes complexes, Paris F-75013, Francebhttps://ror.org/026vcq606Department of Fibre and Polymer Technology, Kungliga Tekniska högskolan Royal Institute of Technology, Stockholm 100 44, Swedenchttps://ror.org/04p491231Department of Biology, Pennsylvania State University, University Park, PA 16802dhttps://ror.org/0062dz060Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Colney Lane, Norwich NR4 7UH, United Kingdom Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2528515123 https://www.pnas.org/doi/abs/10.1073/pnas.2528515123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2531955123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificancePre-mRNA splicing is a fundamental process that shapes gene expression and proteome diversity, yet how it integrates with physiological pathways in plants remains poorly understood. Our study identifies the spliceosomal component SPLICING ... In vivo binding by Arabidopsis SPLICING FACTOR 1 shifts 3′ splice-site choice, regulating circadian rhythms and immunity in plants doi:10.1073/pnas.2531955123 2026-06-04T07:00:00Z Yamila Carla AgrofoglioMaría José IglesiasMaría José de LeoneCarlos Esteban HernandoMartin LewinskiSol Belén TorresGiuliana ContinoKim Joelle KöhnkeMarcelo Javier YanovskyDorothee StaigerJulieta Lisa Mateosahttps://ror.org/03cqe8w59Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular and Instituto de Fisiología, Biología Molecular y Neurociencias-Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires 1428, Argentinabhttps://ror.org/03cqe8w59Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires–Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires C1405BWE, Argentinachttps://ror.org/02hpadn98RNA Biology and Molecular Physiology, Faculty of Biology, Bielefeld University, Bielefeld 33615, Germany Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2531955123 https://www.pnas.org/doi/abs/10.1073/pnas.2531955123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2537963123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificanceAuxin has a broad role in the regulation of many aspects of plant growth and development, including aspects that are important for food production. Auxin acts via transcription factors, called AUXIN RESPONSE FACTORS (ARFs). The ARFs fall into ... Mutational analyses of an instability domain reveal its conserved role in the regulation of class-B ARF levels in Arabidopsis doi:10.1073/pnas.2537963123 2026-06-03T07:00:00Z Zhaonan BanMichael J. PriggeYinglin ZhuNicholas MorffyWesley R. NeherAndrew MuroyamaLucia StraderMark Estelleahttps://ror.org/0168r3w48Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093bhttps://ror.org/00py81415Department of Biology, Duke University, Durham, NC 27708chttps://ror.org/00t7c0489Salk Institute for Biological Sciences, La Jolla, CA 92037 Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2537963123 https://www.pnas.org/doi/abs/10.1073/pnas.2537963123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2601698123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificanceChloroplasts are photosynthetic organelles that can be converted into other plastid types specialized in the storage of particular metabolites such as starch, fats, proteins, or antioxidants. The molecular mechanisms behind plastid transitions ... Chemical modulation of chloroplast de- and redifferentiation reveals a role for the SAL1–PAP retrograde pathway in facilitating plastid transitions doi:10.1073/pnas.2601698123 2026-05-28T07:00:00Z Pablo Perez-ColaoJacobo CrucesSantiago Perez-RodriguezAnna KoprivovaStanislav KoprivaAleksandra SkiryczJorge Lozano-JusteManuel Rodriguez-ConcepcionaInstitute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia 46022, SpainbGalChimia S.A., Parque Empresarial de Touro, Touro, A Coruña 15822, SpaincInstitute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Cologne 50674, GermanydMichigan State University, East Lansing, MI 48824 Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2601698123 https://www.pnas.org/doi/abs/10.1073/pnas.2601698123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2605774123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificanceLignan metabolism in sesame (Sesamum indicum) serves as a valuable model for investigating how plants adapt their specialized metabolism. Although previous studies have focused on seed development, metabolic changes occurring during ... Dynamic diversification of lignan metabolism in sesame via coordinated oxygenation and glucosylation across germination doi:10.1073/pnas.2605774123 2026-06-05T07:00:00Z Erisa HaradaYukie OhbaEiichiro OnoJun MurataHiromi ToyonagaAkira ShiraishiToshiaki AzumaToshiyuki WakiYuto UegakiEri OkamotoAtsushi HoshinoToru NakayamaTatsuya WakasugiMasayuki P. YamamotoManabu Horikawaahttps://ror.org/02pkrz957Bioorganic Research Institute, Suntory Foundation for Life Sciences, Soraku, Kyoto 619-0284, JapanbResearch Institute, Suntory Global Innovation Center Ltd, Soraku, Kyoto 619-0284, Japanchttps://ror.org/01dq60k83Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japandhttps://ror.org/0445phv87Graduate School of Science and Engineering, University of Toyama, Toyama 930-8555, Japanehttps://ror.org/0445phv87Department of Biology, School of Science, University of Toyama, Toyama 930-8555, Japanfhttps://ror.org/05q8wtt20Interdisciplinary Research Unit, National Institute for Basic Biology, Okazaki, Aichi 444-8585, JapangGraduate Institute for Advanced Studies, The Graduate University for Advanced Studies, Okazaki, Aichi 444-8585, Japanhhttps://ror.org/0445phv87Faculty of Science, Academic Assembly, University of Toyama, Toyama 930-8555, Japan Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2605774123 https://www.pnas.org/doi/abs/10.1073/pnas.2605774123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2609915123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 23, June 2026. <br/>SignificanceCrop improvement and accurate climate forecasts rely on biophysical models of how carbon fixation is regulated in the plant leaf. However, while widely used simple models overlook tissue geometry, detailed models are computationally demanding ... Mapping CO2 fixation to two effective parameters: A framework toward data-informed species and model comparison doi:10.1073/pnas.2609915123 2026-06-05T07:00:00Z Andreas StillitsTeresa E. KnudsenAla Trusinaahttps://ror.org/035b05819Biocomplexity, Niels Bohr Institute, University of Copenhagen, Copenhagen 2200, Denmark Proceedings of the National Academy of Sciences 123 23 2026-06-09T07:00:00Z 2026-06-09T07:00:00Z 10.1073/pnas.2609915123 https://www.pnas.org/doi/abs/10.1073/pnas.2609915123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2522064123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 22, June 2026. <br/>Polyploidy, also known as whole genome duplication, is a major evolutionary force in plants, driving diversification and the generation of novel phenotypic variation, including superior abiotic and biotic stress tolerance. The enhanced stress resilience ... Genome evolution through polyploidy: Enhancing plant stress resilience in agriculture doi:10.1073/pnas.2522064123 2026-05-26T07:00:00Z Patrick P. EdgerMelanie J. A. BodySonia De DonnoAdrian E. PlattsJianrong WangJiming JiangaDepartment of Horticulture, Michigan State University, East Lansing, MI 48824bGenetics and Genome Sciences, Michigan State University, East Lansing, MI 48824cHonors College, Michigan State University, East Lansing, MI 48824dDepartment of Computational Mathematics, Science, and Engineering, Michigan State University, East Lansing, MI 48824eDepartment of Plant Biology, Michigan State University, East Lansing, MI 48824 Proceedings of the National Academy of Sciences 123 22 2026-06-02T07:00:00Z 2026-06-02T07:00:00Z 10.1073/pnas.2522064123 https://www.pnas.org/doi/abs/10.1073/pnas.2522064123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2537357123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 22, June 2026. <br/>SignificanceIt is often assumed that the information transfer accuracy during gene expression must be high. However, translation is relatively error-prone. Under stress conditions, bacteria can benefit from mistranslation and concomitant proteome ... Plants tolerate substantial rates of plastid mistranslation via regulated proteostasis doi:10.1073/pnas.2537357123 2026-05-27T07:00:00Z Benjamin BrandtSebastian SchwartzSerena SchwenkertMoritz KrämerKuenzang OmCarina EngstlerAndreas KlinglPeter JahnsEtienne H. MeyerRachael A. DeTarJürgen EirichIris FinkemeierAsaph B. CousinsHans-Henning KunzaPlant Biochemistry and Physiology, Department of Plant Sciences, Ludwig-Maximilians-University Munich, Martinsried-Planegg 82152, GermanybMass Spectrometry of Biomolecules, Department of Plant Sciences, Ludwig-Maximilians-University Munich, Martinsried-Planegg 82152, GermanycPlant Molecular Biology, Department of Plant Sciences, Ludwig-Maximilians-University Munich, Martinsried-Planegg 82152, Germanydhttps://ror.org/05dk0ce17School of Biological Sciences, Washington State University, Pullman, WA 99164-4236ePlant Development, Department of Plant Sciences, Ludwig-Maximilians-University Munich, Martinsried-Planegg 82152, GermanyfDepartment of Plant Biochemistry, Heinrich-Heine-University Duesseldorf, Duesseldorf 40225, GermanygInstitute of Plant Physiology, Martin-Luther-University Halle-Wittenberg, Halle (Saale) 06120, Germanyhhttps://ror.org/03k1gpj17Department of Biology, Colorado State University, Fort Collins, CO 80523ihttps://ror.org/00pd74e08Plant Physiology, Institute of Plant Biology and Biotechnology, University of Muenster, Muenster 48149, Germany Proceedings of the National Academy of Sciences 123 22 2026-06-02T07:00:00Z 2026-06-02T07:00:00Z 10.1073/pnas.2537357123 https://www.pnas.org/doi/abs/10.1073/pnas.2537357123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2603937123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 22, June 2026. <br/>SignificanceAchieving the goal of “Zero Hunger” is an urgent global priority, given the profound impact of micronutrient deficiencies on human health and economic development. This study employed multiplex gene editing technology to target five key genes ... Multiplex gene editing enables the multibiofortification of essential vitamins and other health-promoting phytonutrients in tomato doi:10.1073/pnas.2603937123 2026-05-27T07:00:00Z Yechun HongZongjun YuWenbo ZhuJialei SunZeyao ZhuZhen WangMinjie CaoZhaobo LangYu-Xuan LyuPengpeng LiuJian-Kang ZhuaInstitute of Advanced Biotechnology, Institute of Homeostatic Medicine, and School of Medicine, Southern University of Science and Technology, Shenzhen 518055, ChinabSchool of Life Sciences, Anhui Agricultural University, Hefei, Anhui 230036, ChinacFaculty of Medicine, Macau University of Science and Technology, Macau SAR 999078, China Proceedings of the National Academy of Sciences 123 22 2026-06-02T07:00:00Z 2026-06-02T07:00:00Z 10.1073/pnas.2603937123 https://www.pnas.org/doi/abs/10.1073/pnas.2603937123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2521414123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 21, May 2026. <br/>SignificancePathogens that infect multiple plant species threaten global food security, but how they successfully colonize such diverse hosts remains unclear. This study uncovers how the fungal pathogenBotrytis cinerealeverages a modular transcriptional ... Combined generalist and host-specific transcriptional strategies enable host generalism in the fungal pathogen Botrytis cinerea doi:10.1073/pnas.2521414123 2026-05-19T07:00:00Z Ritu SinghAnna Jo MuhichCloe TomJack McMillanKarishma SrinivasLucca FaietaCeline CaseysDaniel J. KliebensteinaDepartment of Plant Science, University of California, Davis, CA 95616 Proceedings of the National Academy of Sciences 123 21 2026-05-26T07:00:00Z 2026-05-26T07:00:00Z 10.1073/pnas.2521414123 https://www.pnas.org/doi/abs/10.1073/pnas.2521414123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2600591123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 21, May 2026. <br/>SignificanceBrassinosteroid hormones initiate a well-characterized plant signaling pathway. While early signaling events at the plasma membrane have been thoroughly examined, the precise sequence of molecular events that comprise the cytoplasmic signaling ... Plant Kelch phosphatases are Ser/Thr phosphatases involved in cell cycle regulation doi:10.1073/pnas.2600591123 2026-05-20T07:00:00Z Felix Rico-ResendizOded Pri-TalPierre RaiaAndrea MorettiHouming ChenJun YuLarissa BrogerChristelle FuchsLudwig A. HothornSylvain LoubéryMichael HothornaStructural Plant Biology Laboratory, Department of Plant Sciences, University of Geneva, Geneva 1211, SwitzerlandbDepartment of Molecular and Cellular Biology, University of Geneva, Geneva 1211, SwitzerlandcPlant Imaging Unit, Department of Plant Sciences, University of Geneva, Geneva 1211, SwitzerlanddInstitute of Biostatistics, Leibniz University, Hannover 30419, Germany Proceedings of the National Academy of Sciences 123 21 2026-05-26T07:00:00Z 2026-05-26T07:00:00Z 10.1073/pnas.2600591123 https://www.pnas.org/doi/abs/10.1073/pnas.2600591123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2603682123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 21, May 2026. <br/>SignificanceDNA methylation is required for genome stability and regulation of genes and transposons in many eukaryotes. InArabidopsis thaliana, DNA methylation is required for developmental programming, yet profiles vary dramatically according to ... Genome-wide CG hypomethylation of the Arabidopsis ecotype Cvi linked to structural variation and RNAi at the VIM4–VIM2 locus doi:10.1073/pnas.2603682123 2026-05-19T07:00:00Z Sang-Yoon ShinMinsu ParkJaehoon LeeSeunga LeeJennifer M. FrostRobert L. FischerYeonhee ChoiChanseok ShinaResearch Institute of Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, KoreabResearch Center for Plant Plasticity, Seoul National University, Seoul 08826, KoreacDepartment of Agricultural Biotechnology, Seoul National University, Seoul 08826, KoreadDepartment of Biological Sciences, Seoul National University, Seoul 08826, KoreaeDepartment of Medical and Molecular Genetics, King’s College London, Great Maze Pond, London SE1 9RT, United KingdomfDepartment of Plant and Microbial Biology, University of California, Berkeley, CA 94720 Proceedings of the National Academy of Sciences 123 21 2026-05-26T07:00:00Z 2026-05-26T07:00:00Z 10.1073/pnas.2603682123 https://www.pnas.org/doi/abs/10.1073/pnas.2603682123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2535316123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 20, May 2026. <br/>SignificanceMeiosis is an evolutionarily conserved process, in which chromosomes interact with each other and exchange parts. This behavior is distinct during organism’s development and requires activity of many specialized genes that must be turned on ... PAM1 regulates meiosis by coupling RNA processing to the chromosome axis doi:10.1073/pnas.2535316123 2026-05-13T07:00:00Z Qian DuMinghui WangChoon-Lin TiangMoira J. SheehanPaul AltendorfJu-Kyung YuOtto HudeczElisabeth RoitingerChung-Ju Rachel WangRobert BukowskiRobert B. MeeleyClint KoInna N. GolubovskayaWojciech P. PawlowskiaSection of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853bBioinformatics Facility, Cornell University, Ithaca, NY 14853cSyngenta Biotechnology, Inc., Stanton, MN 55018dInstitute of Molecular Biotechnology, Vienna 1030, AustriaeInstitute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, TaiwanfPioneer Hi-Bred International, Inc.—A DuPont Company, Johnston, IA 50131gDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720 Proceedings of the National Academy of Sciences 123 20 2026-05-19T07:00:00Z 2026-05-19T07:00:00Z 10.1073/pnas.2535316123 https://www.pnas.org/doi/abs/10.1073/pnas.2535316123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2603627123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 20, May 2026. <br/>SignificancePlants face hyperosmotic stress from drought, salinity, and cold, yet how they sense and rapidly respond to such stress has remained unclear. We show that B4-subgroup RAF kinases directly detect cellular hyperosmolarity through liquid–liquid ... Rapid sensing and relaying of cellular hyperosmotic stress signals via RAF–SnRK2 core condensates doi:10.1073/pnas.2603627123 2026-05-13T07:00:00Z Guting LiuZhen LinGuanquan LinXinyong WangXiaolei LiuZhaobo LangJian-Kang ZhuPengcheng WangaInstitute of Advanced Biotechnology, Institute of Homeostatic Medicine, and School of Medicine, Southern University of Science and Technology, Shenzhen 518055, ChinabChinese Academy of Sciences Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, ChinacSchool of Medicine, Macau University of Science and Technology, Macau SAR 999078, China Proceedings of the National Academy of Sciences 123 20 2026-05-19T07:00:00Z 2026-05-19T07:00:00Z 10.1073/pnas.2603627123 https://www.pnas.org/doi/abs/10.1073/pnas.2603627123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2515702123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificanceSeeds evolved when plants retained the female spores inside the parent tissue. The growth of the spores was accommodated by removing part of the nucellus, the maternal tissue responsible for female meiosis. Here, we demonstrate that ... A change in the cell wall status initiates the elimination of the nucellus in Arabidopsis doi:10.1073/pnas.2515702123 2026-05-05T07:00:00Z Miryam IannacconeWenjia XuDennys-Marcela Gomez-PaezSandrine ChoinardElisa MaricchioloAlexis PeaucelleAline VoxeurKalina Tamara HaasCatherine LapierreJose M. Jiménez-GómezAndrea PompaEnrico MagnaniaInstitut Jean-Pierre Bourgin, Institut National de Rrecherche pour l’Agriculture, l’Alimentation et l’Environnement, AgroParisTech, CNRS, University of Paris-Saclay, Versailles Cedex 78026, Francebhttps://ror.org/04q4kt073Section of Biological and Biotechnological Sciences, Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino 61029, Italychttps://ror.org/04mfzb702Centro de Biotecnología y Genómica de Plantas, UPM-INIA-CSIC, Campus de Montegancedo, Madrid 28223, Spain Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2515702123 https://www.pnas.org/doi/abs/10.1073/pnas.2515702123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2523859123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificanceThe basis for the selective activity of saponins across organisms, and for plant self-resistance during their biosynthesis and storage, is not fully understood. Here, we show that membrane sterol identity governs susceptibility to saponins and ... Sterol divergence across eukaryotic kingdoms determines membrane susceptibility to saponins, a class of plant defense compounds doi:10.1073/pnas.2523859123 2026-05-08T07:00:00Z Malbor DervishiJan GüntherJinhui LiHuriye Deniz UzunHans Christian Bruun HansenThomas Günther PomorskiAnja Thoe FuglsangViviana MonjeSøren Bakahttps://ror.org/035b05819Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg 1871, Denmarkbhttps://ror.org/01y64my43Department of Chemical and Biological Engineering, University of Buffalo, Amherst, NY 14260chttps://ror.org/04tsk2644Department of Molecular Biochemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum 44780, Germany Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2523859123 https://www.pnas.org/doi/abs/10.1073/pnas.2523859123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2533820123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificancePlants rely on chemical defenses to deter herbivores, yet the evolutionary processes that generate such systems remain poorly understood. Two-component defenses, in which inactive compounds are rapidly activated upon damage, offer an ideal ... A sugar chain–dependent two-component chemical defense in Hedera helix reveals substrate-driven β-glucosidase evolution in Apiales doi:10.1073/pnas.2533820123 2026-05-04T07:00:00Z Han XiaoyangYang JirongDeng ZixinYu YiaDepartment of Gastroenterology, Zhongnan Hospital of Wuhan University, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, ChinabAnhui Province Key Laboratory of Bioactive Natural Products, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, ChinacScience & Technology Industrial Parks of Anhui University of Chinese Medicine, Hefei 230012, Chinadhttps://ror.org/054x1kd82State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, China Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2533820123 https://www.pnas.org/doi/abs/10.1073/pnas.2533820123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2601574123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificancePlants experience multiple environmental signals, such as light and temperature, that must be interpreted together to regulate growth and development. How this integrative capacity evolved across plant lineages remained unclear. By comparing ... Conserved regulatory core and lineage-specific diversification of light–temperature integration in plants doi:10.1073/pnas.2601574123 2026-05-05T07:00:00Z Bruno CatarinoFernando Rodríguez-MarínCristina ÚrbezChristina ArvanitidouEva ÁlvarezFederico ValverdeJosé Manuel Franco-ZorrillaFrancisco Romero-CamperoMiguel A. BlázquezaInstituto de Biología Molecular y Celular de Plantas (CSIC - Universitat Politècnia de València), Valencia 46022, SpainbInstituto de Bioquímica Vegetal y Fotosíntesis (CSIC - Universidad de Sevilla), Sevilla 41092, Spainchttps://ror.org/015w4v032Centro Nacional de Biotecnología (CSIC), Cantoblanco 28049, Spaindhttps://ror.org/03yxnpp24Departamento de Ciencias de la Computación e Inteligencia Artificial, Universidad de Sevilla, Sevilla 41012, Spain Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2601574123 https://www.pnas.org/doi/abs/10.1073/pnas.2601574123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2601719123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificanceAchieving durable, broad-spectrum crop protection remains difficult because plant immunity models often rely on limited species and overlook natural genetic diversity. To understand how plant defense networks shift across diverse lineages, we ... A multiplant transcriptomic atlas reveals conserved and lineage-specific defense architectures in response to Botrytis cinerea doi:10.1073/pnas.2601719123 2026-05-06T07:00:00Z Ritu SinghAnna Jo MuhichCloe TomCeline CaseysDaniel J. KliebensteinaDepartment of Plant Science, University of California, Davis, CA 95616bPlant Biology Graduate Group, University of California, Davis, CA 95616cHHMI, Chevy Chase, MD 20815 Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2601719123 https://www.pnas.org/doi/abs/10.1073/pnas.2601719123?af=R https://www.pnas.org/doi/abs/10.1073/pnas.2605032123?af=R Proceedings of the National Academy of Sciences, Volume 123, Issue 19, May 2026. <br/>SignificanceBetter understanding plant photosynthetic responses to elevated temperature and leaf-to-air vapor pressure difference (Δe) is critical under climate change. By separating temperature and Δeeffects across multiple CO2levels, we demonstrate ... Coordinated stomatal, mesophyll, and biochemical functions in photosynthetic responses to heat and dryness doi:10.1073/pnas.2605032123 2026-05-05T07:00:00Z Xingyu HuSuan Chin WongGraham D. FarquharaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, ChinabDivision of Plant Sciences, Research School of Biology, College of Science and Medicine, The Australian National University, Canberra, ACT 2600, Australia Proceedings of the National Academy of Sciences 123 19 2026-05-12T07:00:00Z 2026-05-12T07:00:00Z 10.1073/pnas.2605032123 https://www.pnas.org/doi/abs/10.1073/pnas.2605032123?af=R