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Posts by Loic Lepiniec

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Scientists stunned by ‘fundamentally new way’ life produces DNA; Newly discovered bacterial defense system challenges genetic code’s central dogma, www.science.org/content/arti...

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Paul Schouveiler’s mobility experience, co-financed by the Saclay Plant Sciences (SPS) Teaching and Training – Mobility Open Call Paul Schouvelier shares his mobility experience in Melbourne, which was co-financed by SPS as part of the AAP Training – Mobility / Educational Event

Paul Schouveiler’s mobility experience, co-financed by the Saclay Plant Sciences (SPS) Teaching and Training – Mobility Open Call, eng-saclay-plant-sciences.hub.inrae.fr/news/mobility-paul

1 week ago 4 1 0 1
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International Saclay Plant Sciences (SPS) Symposium 2026, register now! Registration is now open for the International SPS Symposium 2026 “Today’s research, plants of tomorrow”, taking place from October 14 to October16, 2026.

International Saclay Plant Sciences (SPS) Symposium 2026, register now! | @scoopit eng-saclay-plant-sciences.hub.inrae.fr/news/international-sps-s...

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International Saclay Plant Sciences (SPS) Symposium 2026, register now! Registration is now open for the International SPS Symposium 2026 “Today’s research, plants of tomorrow”, taking place from October 14 to October16, 2026.

International Saclay Plant Sciences (SPS) Symposium 2026, register now!

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International Saclay Plant Sciences (SPS) Symposium 2026 - October 14-16, Versailles, Save the date ! Today’s research, plants of tomorrow This international symposium is organized by the Saclay Plant Sciences (SPS) network, one of the largest plant science communities in Europe.   In the face of rapid and significant climate change, advancing our knowledge in plant sciences has never been more crucial. The research being conducted in our laboratories today will make it possible to develop tools, cultivars, and agricultural practices that will help adapt our lifestyles and production systems to these environmental challenges in the near future.   The International SPS Symposium will gather international researchers from various areas of plant sciences to show the diversity of plant research, share new insights and promote collaborations. The sessions will focus on the following topics: 1) Nutrition and metabolism, 2) Environmental interactions, 3) Developmental and cell biology, 4) Genome wide analysis and 5) Agronomic traits and breeding tools.   Renowned international and SPS speakers will present their latest findings. Additionally, approximately twenty talks will be selected based on submitted abstracts. Two poster sessions (featuring flash-talks) will also provide attendees with the opportunity to present their work and foster new collaborations.

International Saclay Plant Sciences (SPS) Symposium 2026 - October 14-16, Versailles, Save the date !

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Le 12 mars dernier a eu lieu la journée Saclay Plant’ Innov’, consacrée au thème « Diversification des productions végétales et nouveaux défis pour l’alimentation »., saclay-plant-sciences.hub.inrae.fr/actualites/s...

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Appel à candidature Prix de thèse SFBV-AAF 2026   (Société Française de Biologie Végétale et Académie d’Agriculture de France) Appel à candidature Prix de thèse SFBV-AAF 2026   La Société Française de Biologie Végétale et l’Académie d’Agriculture de France décernent chaque année conjointement un prix pour récompenser une thèse excellente dans le domaine de la biologie végétale.... Read More

Appel à candidature Prix de thèse SFBV-AAF 2026   (Société Française de Biologie Végétale et Académie d’Agriculture de France)

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China pledges billion-dollar spending boost for science Funding for national laboratories and important research projects would increase under the government’s plans.

The Chinese government’s investment in science comes in sharp contrast to US President Donald Trump’s administration, which has tried to cut science spending since Trump took office in early 2025. Many of those proposed cuts have so far been rejected by Congress. www.nature.com/articles/d41...

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A circadian rheostat drives proton electrochemical gradients to optimize cell-type-specific growth in Arabidopsis The clock component CCA1 functions as a molecular rheostat, fine-tuning cell-type-specific electrochemical gradients to optimize carbon allocation and the timely coordination of shoot and root growth ...

www.cell.com/cell/fulltex...

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Mystery of how plants make a family of medicinal molecules has been solved The enzymes that produce cinchona alkaloid compounds, such as the antimalarial drug quinine, have been identified.

Mystery of how plants make a family of medicinal molecules has been solved www.nature.com/articles/d41...

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AlphaFold database hits ‘next level’: the AI system now includes protein pairing The database of 200 million protein-structure predictions now includes homodimers, adding new biological relevance.

AlphaFold database hits ‘next level’: the AI system now includes protein pairing www.nature.com/articles/d41...

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Jacques Monod, pionnier de la biologie moderne L’année 2026 marque le cinquantenaire de la disparition de Jacques Monod. Lauréat du prix Nobel de physiologie ou médecine en 1965, il fut l’un des pionniers de la biologie moderne. Outre ses travaux ...

Jacques Monod, pionnier de la biologie moderne vds.hypotheses.org/22095

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The February issue is fully online, with a cover depicting a close-up of clonal plantlets from the amazing Kalanchoe nicknamed "Mother of thousands":
www.nature.com/nplants/volu...

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#RP_INRAE Transitions agricoles, alimentaires et environnementales : Philippe Mauguin PDG d’INRAE et Laurent Buisson DG d’AgroParisTech ont signé le renouvellement d’une convention-cadre avec la volonté de structurer et d’amplifier leur coopération scientifique.
Le communiqué 👉 url.inrae.fr/4c8Kb62

2 months ago 8 3 0 0
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Annotating genomes at increased scale and resolution - Nature Reviews Genetics In this Review, Ji et al. overview how rapidly advancing experimental and computational methods are enabling improved and automated annotation of gene structure and function, providing researchers wit...

Annotating genomes at increased scale and resolution
www.nature.com/articles/s41...

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The January issue is now fully online, and free-to-read links to all articles have been posted on Twitter and BlueSky:
www.nature.com/nplants/volu...

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And we are online!!!! It will be an amazing meeting!
Unfortunately, with limited space 😭. So, hurry up!

4 months ago 3 3 0 0
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Second day of @episeedlink.bsky.social Annual Meeting starts with Pablo Manavella, @manavellalab.bsky.social chief-editor of Plant Cell.

2 months ago 14 3 1 0
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The International Conference on Arabidopsis Research, ICAR 2026, 22 - 26 June  | National University of Singapore The International Conference on Arabidopsis Research (ICAR) is the leading annual gathering of the global community of scientists who employ Arabidopsis thaliana as a model system. For nearly four decades, ICAR has showcased the remarkable contributions of Arabidopsis in advancing plant biology, and each year it brings together more than 1,000 scientists from around the world. The 36th ICAR will take place from 22–26 June 2026 at the National University of Singapore, in the heart of one of Asia’s most dynamic cities. Over five days, participants will enjoy keynote lectures, plenary and concurrent sessions, poster presentations, and abundant opportunities for networking and collaboration. Join us in Singapore to share discoveries, exchange ideas, and strengthen connections within our vibrant global community of plant scientists!

The International Conference on Arabidopsis Research, ICAR 2026, 22 - 26 June  | National University of Singapore, https://icar2026.sg

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New Article: "Creating a new oilseed crop, pennycress, by combining key domestication traits using CRISPR genome editing" rdcu.be/e0NAR

De novo domestication by identifying and stacking CRISPR-induced mutations to create a new intermediate off-season oilseed crop.

2 months ago 17 6 1 1
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Diversification des productions végétales et nouveaux défis pour l’alimentation : perspectives d’innovations de valorisation des plantes pour une alimentation durable- "Saclay Plant' Innov", 12 mar... Le réseau Sciences des Plantes de Saclay (SPS) et les unités de recherche SayFood et PNCA vous invitent à la prochaine journée des rendez-vous de l’innovation, sur le thème de la diversification des productions végétales et des nouveaux défis pour l’alimentation. Cette journée a pour but de favoriser les échanges entre les équipes de recherche du réseau SPS, des unités SayFood et PCNA et des partenaires du secteur privé pour faire émerger de nouveaux projets innovants.   Les produits végétaux sont une source majeure de macro et micronutriments pour l’alimentation humaine. Leur rôle dans la diversification des sources protéiques suscite un intérêt croissant dans le contexte de la transition agroécologique, notamment en vue de substituer certains produits alimentaires d’origine animale. Cette dynamique implique une évolution et une adaptation des systèmes de cultures, avec un regain d’intérêt pour les espèces végétales riches en protéines et en lipides. Cette diversification s’accompagne d’une attention particulière portée aux qualités nutritionnelle et organoleptique, à la biodisponibilité et la bioaccessibilité de certains nutriments ainsi qu'aux propriétés technologiques de ces produits. Elle génère également de nouvelles contraintes sur les procédés de transformation, de fractionnement et de purification, ainsi que sur la valorisation des coproduits. Cette évolution nécessaire des productions végétales répond aussi aux attentes des consommateurs en matière de santé et d’alimentation, mais également aux questions d'éthique. Une meilleure compréhension de ces différents leviers, de la production à la consommation, est primordiale pour accélérer les transitions agroécologiques et alimentaires.

Diversification des productions végétales et nouveaux défis pour l’alimentation : perspectives d’innovations de valorisation des plantes pour une alimentation durable- "Saclay Plant' Innov", 12 mars, Campus Agro Paris-Saclay,

3 months ago 1 1 0 0
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The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026 The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026

The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026

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Un système aéroponique permettant de caractériser les exsudats racinaires du maïs en relation avec la nutrition azotée et phosphorée et la symbiose mycorhizienne arbusculaire L'agriculture durable est essentielle pour répondre à la demande alimentaire. Il est indispensable de comprendre les interactions entre les plantes et le sol pour optimiser les rendements des cultures et apporter moins d'intrants (engrais et traitements chimiques). Les exsudats racinaires régulent le cycle des nutriments et les interactions entre les plantes et les microbes.   À l'aide d'une co-culture de maïs et d’un champignon mycorhizien en système aéroponique , l’équipe d’Alia Dellagi à l’Institut Jean-Pierre Bourgin - Sciences du Végétal - IJPB (INRAE/AgroParisTech/UPSaclay, Versailles) a montré comment Rhizophagus irregularis et les rapports  azote/phosphore (N/P) influencent le niveau des métabolites spécialisés (MS) des exsudats racinaires. Ce dispositif unique mis au point permettra d'étudier les exsudats racinaires des racines mycorhizées, ce qui constitue une avancée majeure.   En résumé, cette étude montre le potentiel des systèmes aéroponiques en tant qu'outil robuste pour simuler les conditions physiologiques, offrant ainsi la possibilité de récolter des informations uniques pour comprendre comment les exsudats racinaires influencent l'assemblage du microbiote en fonction de la disponibilité des nutriments. Les développements futurs pourraient impliquer l'utilisation de consortiums microbiens (CMA + bactéries) dans le système aéroponique afin d'étudier le rôle de la composition des exsudats racinaires et de la symbiose sur l'assemblage et le fonctionnement du holobionte végétal en relation avec le génotype de l'hôte et les facteurs environnementaux tels que la disponibilité des nutriments.   Légende Figure : Culture aéroponique de maïs mycorhizée par le champignon mycorhizien à arbuscules  Rhizophagus irregularis.   -> Contact : alia.dellagi@agroparistech.fr

Un système aéroponique permettant de caractériser les exsudats racinaires du maïs en relation avec la nutrition azotée et phosphorée et la symbiose mycorhizienne arbusculaire

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The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026 The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026

The Saclay Plant Sciences Graduate School of Research (SPS) wishes you a Happy New Year 2026

3 months ago 6 1 0 0
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Postdomestication selection of MKK3 shaped seed dormancy and end-use traits in barley "Anthropogenic selection of grain traits such as dormancy has shaped the developmental trajectories of crops. In cereals, shortening dormancy provides rapid and even postharvest germination, but increases the risk of weather-induced preharvest sprouting, with yearly harvest losses beyond 1 billion dollars. Our understanding of how, why, when, and where cereal dormancy diversification arose is fragmentary. Here, we show in the founder crop barley (Hordeum vulgare) that dormancy is primarily regulated through a mosaic of locus haplotypes comprising copy number variation and inherent kinase activity of Mitogen-activated protein kinase kinase 3 (MKK3). We provide evidence supporting the historical selection of specific MKK3 haplotypes that shaped dormancy levels according to changing climatic pressures and outline a genetic framework for breeders to balance grain dormancy and preharvest sprouting avoidance".

Postdomestication selection of MKK3 shaped seed dormancy and end-use traits in barley, https://pubmed.ncbi.nlm.nih.gov/41196947/

3 months ago 11 7 1 0
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ARF3-mediated auxin signaling is essential for sex determination in cucumber "Sex determination underpins genesis of male and female flowers with particularly important implications in plant breeding. Auxin and ethylene regulate femaleness in cucurbits. In this work, we identified an auxin response factor 3 (CsARF3) that plays an essential role in carpel development in cucumber. Deletion of CsARF3 resulted in an androecious phenotype with only male flowers, whereas overexpression of CsARF3 led to an increased number of female flowers. CsarF3 promotes femaleness by directly stimulating the expression of the meristem maintenance gene CsSTM and repressing the activity of the gynoecious gene CsWIP1. Auxin and ethylene exhibit a reciprocal relationship during sex determination, in which ethylene promotes carpel formation through auxin at the early stage of flower development. The auxin signaling in carpels then enhances ethylene biosynthesis to inhibit stamen development"

ARF3-mediated auxin signaling is essential for sex determination in cucumber, https://pubmed.ncbi.nlm.nih.gov/41379936/

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The plant ontology of cell types 

The plant ontology of cell types, https://doi.org/10.1016/j.molp.2025.12.025

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