#newpaper: Rapid cell-to-cell expulsion completes phloem sieve element maturation @currentbiology.bsky.social: Arabidopsis, phloem, protophloem sieve elements, differentiation, F-actin, developmental switch, calcium signaling, cytoplasmic clearing, phloem unloading, FIB-SEM doi.org/10.1016/j.cu...

#newpaper: Root developmental zonation is independent of cell wall pH The paper shows that while on the organ level apoplast acidification promotes root growth, the cellular surface pH and strain rate profiles are largely independent of each other. @natplants.nature.com doi.org/10.1038/s414...

Root developmental zonation is independent of cell wall pH - Nature Plants

The authors developed a cell wall-anchored pH sensor and found that the cell elongation profile does not correlate with cell wall acidification in Arabidopsis roots. At the same time, cell wall pH cha...

doi.org

Hormone-dependent receptor docking controls calcium channel activity in plants A breathrough preprint manuscript is being published at bioRxiv. Find out more at: doi: doi.org/10.64898/202... Congratulations to Matyáš Fendrych's Laboratory of Plant Morphodynamics at IEB CAS and other contributors.

Hormone-dependent receptor docking controls calcium channel activity in plants

The phytohormone auxin is a central coordinator of plant growth and development. Besides its canonical effect on gene transcription[1][1],[2][2], auxin triggers an ultra-rapid calcium ion influx that ...

doi.org

#newpaper: CYSTEINE-RICH RLK2 regulates development via callose synthase-dependent symplastic transport in Arabidopsis @academic.oup.com: cell-to-cell transport; sugar metabolism; beta-glucan; carbohydrate accumulation; symplastic loading; intercellular channels; partitioning doi.org/10.1093/plph...

CYSTEINE-RICH RLK2 regulates development via callose synthase-dependent symplastic transport in Arabidopsis

Abstract. CYSTEINE-RICH RECEPTOR-LIKE PROTEIN KINASEs (CRKs) play an important role in plant development and stress responses. One of the best described me

doi.org

The Czech Interministerial Council for Genetics and Genomics is strengthening links between research, industry and public administration to accelerate the use of genomics in agriculture. The Council's recent meeting was held at our institute in Olomouc. The plant WG is chaired by Prof. Doležel.

#newpaper: A chromosome-scale genome assembly of Hordeum erectifolium: genomic, transcriptomic and anatomical adaptations to drought in a wild barley relative @newphyt.bsky.social: comparative transcriptomics, drought, drought adaptation, evolution, genome assembly doi.org/10.1111/nph....

A chromosome‐scale genome assembly of Hordeum erectifolium: genomic, transcriptomic and anatomical adaptations to drought in a wild barley relative

Wild crop relatives are valuable genetic resources for improving stress adaptation in cultivated species, but their effective use depends on high-quality reference genomes integrated with phenotyp...

doi.org

#newpaper: Uncovering genetic relationships and designing markers for genotyping European pear varieties @mapjournals.bsky.social: Pyrus, Genotyping, ddRAD, SSR, Amplicon doi.org/10.48130/fru...

Uncovering genetic relationships and designing markers for genotyping European pear varieties

<p>Understanding relationships among pear (<italic>Pyrus</italic> spp.) accessions and ensuring their correct identification is critical for breeding and germplasm management. In this study, we analyz...

doi.org

#newpaper: Introgression of a Terminal Segment From Chromosome 3S of Festuca mairei Increases Drought Resistance of Lolium perenne WILEY: ×Festulolium | alien introgression | climate resilience | drought resistance | Festuca mairei | forage grass breeding doi.org/10.1002/fes3...

Introgression of a Terminal Segment From Chromosome 3S of Festuca mairei Increases Drought Resistance of Lolium perenne

Due to climate change, the requirement for increased resilience by grassland systems to onsets of ever-increasing drought stresses makes the development of drought-resistant forage crops a priority f...

doi.org

Few places left!!! We’re happy to invite you to join us for the workshop “Basics of Light Microscopy in Plant Research”, happening 26–27 May 2026 at the Institute of Experimental Botany of the CAS, Building B1, Rozvojová 263, Prague. Register until Monday 25, 2026 at IF@ueb.cas.cz

#newpaper: Mechanisms controlling the plasma membrane targeting and the nanodomain organization of the plant SPFH protein HIR2 @theplantjournal.bsky.social: plasma membrane nanodomains, HIR2, S-acylation, lipids, oligomerization, super-resolutionmicroscopy, ROS doi.org/10.1111/tpj....

Mechanisms controlling the plasma membrane targeting and the nanodomain organization of the plant SPFH protein HIR2

S-acylation and lipid composition as well as oligomerization control the plasma membrane localization and the organization into nanodomains of the Arabidopsis Stomatin/Prohibitin/Flotillin/HflK/C (SP....

doi.org

#newpaper: A Rab/Kinesin-12/kinase module couples vesicle delivery and phragmoplast dynamics during plant cell cytokinesis @springernature.com: Cytokinesis, Dynein, Kinesin, Plant cytoskeleton, RHO Signalling, Protein trafficking in plants doi.org/10.1038/s443...

A Rab/Kinesin-12/kinase module couples vesicle delivery and phragmoplast dynamics during plant cell cytokinesis - The EMBO Journal

Cytokinesis is a key process in the development of multicellular organisms, through both formative and proliferative divisions. In land plants, successful cytokinesis requires precise targeting of Golgi-derived vesicles to the future cell division plane by the phragmoplast, a cytoskeletal structure that undergoes continuous remodeling. Endomembrane trafficking and phragmoplast remodeling are tightly coupled, indicating the existence of active crosstalk. However, although many molecular regulators of membrane trafficking and cytoskeletal organization are known, it remains poorly understood how these processes are coordinated. Here, we describe a regulatory module consisting of the membrane-associated GTPase RAB-A2a, cytoskeleton-associated Class II Kinesin-12 proteins, and the Fused kinase ortholog TIO. We provide evidence that the interaction between these molecules at the midzone, and differential functions of Class II Kinesin-12 members at the leading and lagging cell plate domains, are essential for cytokinesis initiation and progression in Arabidopsis by simultaneously targeting vesicles to the midzone and coupling phragmoplast remodeling to vesicle delivery.

doi.org

#newpaper: Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B-dependent manner @newphyt.bsky.social: Chl, cytokinin, light,photosynthesis, Photosystem II,phytochrome, senescence doi.org/10.1111/nph....

The Institute of Experimental Botany CAS and the Institute of Chemical Process Fundamentals CAS are looking for: AI Tools Implementation Specialist. Find more information here (only Czech version): ueb.cas.cz/cs/aktuality...

🌸 Changes in pollen reveal new insights into the evolution of plant self-fertilization. Researchers from Charles University and @iebcas.bsky.social discovered important evolutionary changes in pollen coat structure and proteins that have been overlooked so far 🌿🔬🧬 shorturl.at/PZVoE

Job shadowing visit from Poland! Anna Kasprowicz-Maluśki and Wojciech Kwiatkowski visited the Imaging Facility at IEB in Prague to collect inspiration for their plant-oriented facility at Adam Mickiewicz University in Poznań, Poland. Thank you for visiting us and good luck! @ifieb.bsky.social

The Institute of Experimental Botany of the Czech Academy of Sciences is seeking a suitable candidate (m/f) for the position of Postdoctoral Researcher /Junior Researcher – apple genomics and molecular genetics. Find out more: ueb.cas.cz/en/news/?id=...

This week, Jana, Manuel, Ahel, and Peter participated in the Young Researchers Meeting (YRM) at the IEB 2026 conference @iebcas.bsky.social, where they presented their research.

Six months in with the Mirava Polyscope super-resolution microscope from Abberior Instruments at the Imaging Facility of IEB — and a great advanced training led by Gero Schlötel. Hands-on insights, practical tips, and expert guidance. Exactly all we needed. @abberior.rocks @ifieb.bsky.social

#newpaper: Combining promoter and induced intron 1 mutations of Vrn-A1a does not accelerate flowering in wheat @springernature.com: Wheat, Vernalization, Vrn-A1a, RIP3, Genome editing, Crops doi.org/10.1007/s110... @pecinka-grp.bsky.social

Combining promoter and induced intron 1 mutations of Vrn-A1a does not accelerate flowering in wheat - Molecular Breeding

Molecular Breeding - In temperate cereals, vernalization regulates the transition from vegetative to reproductive growth in response to low temperatures. A central component of this pathway is...

doi.org

We co-organized a key discussion on the future of agriculture 🌱 At the “Adaptation of Agriculture to Climate Change” conference, scientists, farmers, and policy representatives discussed climate impacts on food production and new genomic techniques. www.bvv.cz/en/agrishow/...

🧪 Jak se dělá věda dnes? 🗣️ Zastavte se na kus řeči s mladými experty a expertkami. 💡 Srozumitelně pro každého. Vstup je zdarma. 📍 Kde: HOAX PUB, Smíchovská náplavka, kobka č. 13/14, Praha Více: www.avcr.cz/cs/pro-verejnost/akce-pro-verejnost/Vedecka-zastavka/

#new_paper: Sex chromosome pairing and multivalent associations during meiosis in diploid and polyploid Silene latifolia @academic.oup.com: Meiosis, Sex chromosomes, Synapsis, Crossing over, Silene latifolia doi.org/10.1093/plph...

Sex chromosome pairing and multivalent associations during meiosis in diploid and polyploid Silene latifolia

Analysis of meiotic progression in Silene latifolia reveals how sex chromosome dose affects bivalent and multivalent association, XY (a)synapsis, and recom

doi.org

Proud and happy to have contributed to the Arabidopsis thaliana genome reannotation as the only scientist from the Czech Republic. Accurate annotation of model plants like Arabidopsis is essential for advancing plant biology, functional genomics, and future crop research. 🌿 @iebcas.bsky.social

The Arabidopsis Information Resource (TAIR)@tairnews.bsky.social · 4mo ago

Why did researchers choose to volunteer their time to reannotate the Arabidopsis thaliana genome? It's value to the community🌾🧪🌱 bit.ly/4btx3HQ #TAIR #plantscience #plantbiology #Arabidopsis #cropscience #TAIR12

#new_paper: Allelic variation at a single locus distinguishes spring and winter faba beans @natgenet.nature.com: Frost tolerance GWAS, Faba bean genome assembly, Protein crop breeding doi.org/10.1038/s415...

Allelic variation at a single locus distinguishes spring and winter faba beans - Nature Genetics

An improved faba bean reference genome and resequencing of winter and spring faba bean accessions identify genetic determinants of winter hardiness.

doi.org

ERC-funded PhD position: auxin in plant morphogenesis! Come to our team to study molecular mechanisms downstream of auxin signaling that control morphogenesis in plants! ueb.cas.cz/en/news/?id=...

Our postdoc Martin Kovačik received a Fulbright fellowship and is heading to the USA for 5 months at the Whitehead Institute for Biomedical Research (Cambridge) with Prof Mary Gehring. Barley seeds&parental conflict mech @pecinka-grp.bsky.social @kovacik.bsky.social @whiteheadinstitute.bsky.social

#new_paper: Condensin II mediates resistance to genotoxic stress and prevents mitotic defects in Arabidopsis @academic.oup.com doi.org/10.1093/plph...

Condensin II mediates resistance to genotoxic stress and prevents mitotic defects in Arabidopsis

A forward-directed screen revealed that Condensin II prevents formation of mitotic anaphase bridges and maintains genome stability under genotoxic stress i

doi.org

#new_paper: Domain architecture of plant eukaryotic translation initiation factor 3 subunit E governs interaction with translational cis-elements to regulatepollen tube growth @academic.oup.com doi.org/10.1093/plce...

Domain architecture of plant eukaryotic translation initiation factor 3 subunit E governs interaction with translational cis-elements to regulatepollen tube growth

Translation initiation subunit eIF3E helps balance protein production by coordinating opposing genetic cis-elements, affecting pollen tube growth and the s

doi.org

#new_paper: Sorghum embryos undergoing B chromosome elimination express B‑variants of mitotic‑related genes @springernature.com: B chromosome, CENH3, Cohesion, Chromosome elimination, Kinetochore, Micronuclei, Sorghum, B chromosome-specific (peri)centromere repeat doi.org/10.1186/s130...

Sorghum embryos undergoing B chromosome elimination express B-variants of mitotic-related genes - Genome Biology

Background Selective DNA elimination occurs across diverse species and plays a crucial role in evolution and development. This process encompasses small deletions, complete removal of chromosomes, or ...

doi.org

Join us in Olomouc, Czech Republic, for an international meeting on B chromosomes and related genetic elements, 1–4 June 2026. Registration deadline: 15 April 2026. Conference website: olomouc.ueb.cas.cz/en/6bcc