
Host laboratory 1: Chromosome Dynamics group | Institute of Plant Sciences of Paris-Saclay (IPS2)
Campus of the Paris-Saclay University (25 km south of Paris)
Presentation

IPS2 is a multidisciplinary plant research institute. At IPS2, we want to better understand the molecular and genetic mechanisms controlling plant growth and their regulation by endogenous and exogenous environmental signals of biotic (symbiotic and pathogens) and abiotic origins, notably in the context of climate change. Analysis of these mechanisms is conducted in an integrated manner at cellular, organ and whole plant levels. IPS2 applies multidisciplinary approaches combining epi/genomics, cell biology, bioinformatics, biochemistry, genetics, and physiology, develops modelling to generate a more predictive biology, and facilitates translational research between model species and crops.
Based in the Institute of Plant Sciences of Paris-Saclay and part of the Developmental Genetics and Genomics (DGG) department, the Chromosome Dynamics’ research group focuses its work on the relationships between histone modification, 3D genome organization and the regulation of gene expression in several plant models and physiological contexts. One of our research objectives is to understand how plants deal with DNA damage, and how this cellular response is connected to the response to other types of stresses.
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Connecting the transcriptional response to heat stress and DNA damage in tomato
The Chromosome Dynamics group has recently shown that during early heat-stress (HS) response, distal regulatory elements form chromatin loops to activate key HS response genes in tomato (Huang et al, Nat Comm 2023). By exposing plants to gamma irradiation, they have identified hundreds of transcriptional enhancers shared between HS and DDR. Some of these enhancers are enriched in SOG1-binding motifs, indicating that SOG1 likely contributes to the activation of DDR genes in response to HS. The goal of this research project will be (i) to identify factors binding to these RE (ii) to determine distal RE coordinating HS and DDR also exist in other crops and notably in monocots and (iii) to test whether priming can contribute to thermotolerance by improving chromatin accessibility at these specific regions. The recruited ESR will combine cutting-edge molecular biology tools such as ChIP-seq, RNAseq and Chromatin Conformation analysis to explore the intricate relationship between HS and DDR.

Host laboratory 2: Department of Developmental Biology | University of Hamburg
Institute for Plant Sciences and Microbiology (Hamburg)
Presentation

The University of Hamburg is a German elite university and one of the largest research and training sites in Europe located at the heart of Hamburg, one of the biggest and most popular cities of Germany. The Institute for Plant Sciences and Microbiology (IPM) is one of the four biology-oriented institutes of the University of Hamburg and provides a vibrant international atmosphere, equipped with state-of-the-art instruments, to carry out first-rate training and conduct world-class research. The Department of Developmental Biology at the IPM studies the molecular mechanisms of phenotypic stability and change. Particular focus is on environmental stresses, such as heat and DNA-damaging factors, and how they affect cell division and growth. The overall aim is to identify factors that allow the modulation of plant growth and survival during stress as possible targets to be translated into crop breeding programs.
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Exploring the role of the DREAM complex in DNA damage response and during heat stress.
The DREAM complex is one of the most important cell cycle regulatory complexes in animals. Until recently, it was believed that this complex is not or only partially found in plants. However, our team has recently identified the full complement of core DREAM complex in plants along with a large number of uncharacterized interactors. We have shown that the DREAM complex is required to control plant growth upon DNA damage. Interestingly, our experiments also indicated that several DREAM components are required during heat stress. Thus, the DREAM complex appears to link DNA damage response and heat stress response. In parallel, we have made the surprising observation that core cell cycle regulators, including components of the DREAM complex, are included in heat stress granules, a form of biomolecular condensate that is driven by liquid-liquid phase separation. These condensates are emerging as a novel regulatory mechanism how to control cell function, especially under stress conditions. Here, we will explore in molecular detail the function of the DREAM complex during heat stress and in particular how stress granules as biomolecular condensates are formed.
Contact : arp.schnittger@uni-hamburg.de

Host laboratory 3: Cell Cycle group | VIB-UGent Center for Plant Systems Biology
Ardoyen campus (Tech Lane Ghent Science Park) (Ghent)
Presentation

The VIB-UGent Center for Plant Systems Biology represents a world-class centre of excellence with more than 300 researchers. We study fundamental plant processes through innovative methods and state-of-the-art technologies, using experimental and computational approaches. The center’s mission focuses on addressing climate change, advancing sustainable agriculture, and conserving biodiversity through innovative plant research. Our goal is to help create a sustainable future where ecological is maintained.
The Cell Cycle team aims at deciphering the different pathways that control cell division in response to environmental conditions. A major research line relates to the DNA damage response (DDR) pathway, representing a highly controlled gene regulatory network being critical for the maintenance of genome integrity. Up to date, the description of the DDR in plants has been largely focused on the model plant Arabidopsis thaliana. Consequently, our knowledge about the DDR in other plants is scarce. With the help of the revolutionary CRISPR/Cas9 genome editing technology, we study DDR signalling in maize. These plants are used to study the contribution of the DDR pathway on the yield and genome stability of crops. Eventually, this knowledge will be used to obtain DNA damage tolerant varieties, aiming to increase the resilience of plants to climate change.
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Studying crop specific features of the DNA damage response
The team has recently generated a diverse set of maize DDR knockout plants. These maize knockout plants will be used to identify heat-dependent DDR target genes of ATM, ATR or SOG1. Effects on cell division and genome integrity will be mapped by leaf kinematic growth analysis and cytological experiments. Complementarily, transcriptional targets of SOG1 and post-transcriptional targets of ATM/ATR, will be identified through RNA-Seq based transcriptomics and quantitative phospho-proteomics, respectively. Selected drought- and DDR-dependent actors will be functionally characterized in maize through the selection of CRISPR/Cas-generated knockouts. These will be phenotypically assessed using available maize DNA damage setups and Phenovision, a robotic platform that allows growth and physiology of maize plants to be monitored throughout their whole life cycle using state-of-the art hyperspectral imaging. Independently, as it is hypothesized that a DNA damage-activated cell cycle checkpoint helps to prevent the transmission of DNA errors to progeny plants, the consequences of knocking out DDR genes on genome (in)stability will be measured through whole-genome sequencing. The knowledge gained from this work should broaden our understanding of the plant-specific control of the DDR and, in the long term, may help to develop novel strategies to cope with yield losses caused by environmental stresses that induce DNA damage.
Contact : lieven.deveylder@psb.vib-ugent.be

Host Laboratory 4: Plant Genetics and Functional Genomics (PGFG)| Faculty of Natural Sciences in Katowice
Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice
Presentation

PGFG is a part of the University of Silesia in Katowice, which is the biggest University in the Silesia region of Poland.
How plants are coordinating their growth and development in the face of a constantly changing environment is more than fascinating. Our privilege is the opportunity to get insight into genetic mechanisms standing behind plants’ developmental program, and their efficient way of reprogramming the metabolism when exposed to stress. PGFG group is interested in identifying the genes and their mechanisms of action by which plants develop and cope with abiotic stresses – we use barley and Arabidopsis as model organisms for genetic and molecular investigations of signaling networks.
At PGFG, we employ translational genomics and transcriptomics, with particular emphasis on analyses based on high-throughput sequencing (NGS, TGS), as well as genetic transformation and gene editing techniques to identify and study the functions and mechanisms of gene regulation related to selected developmental processes and response to environmental stresses in plants.
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Functional analysis of barley genes involved in DNA Damage Response (DDR) activation in response to heat stress
Barley is the 4th most important cereal crop worldwide. At PGFG, we have developed barley TILLING mutants in ATR and NAC8 (SOG1) genes and have shown that genotoxic stress caused by aluminum induces DDR pathway in barley through ATR kinase. This project plans to enlarge the knowledge on DDR involvement in the response to other environmental stress in barley – heat stress. The recruited ESR will be involved in: 1) identification of barley TILLING mutants defective in another key component of DDR – ATM kinase, 2) developing CRISPR/Cas knock-out mutants in ATM, ATR, and NAC8 (SOG1) genes, 3) determining the reaction of obtained mutants to heat stress (HS) 4) transcriptome profiling (RNA-Seq/scRNA-Seq) of the previously identified barley mutants (atr.g and nac8.k) defective in the DDR pathway and selected newly identified mutant(s) in ATM under the control and heat stress conditions.
Contact : Miriam.szurman@us.edu.pl

Host
laboratory 5: Institute of Phytopathology | iFZ Research Centre for Biosystems,
Land Use and Nutrition, Justus Liebig University
iFZ Research Centre for Biosystems, Land Use and Nutrition
Presentation

The Institute of Phytopathology at Justus Liebig University is part of theiFZ Research Centre for Biosystems, Land Use and Nutrition, a leading centre in the EU with about 300 researchers. The mission of the centre is on the sustainable use of natural resources to ensure sufficient, healthy food and an environment fit for human beings under changing climates. It includes all aspects of applied and fundamental plant research and ranges from field-based ecosystem studies to crop breeding and molecular processes of plant adaptation to climate stress. For this, the centre is equipped with state-of-the-art infrastructure for molecular and cell biological analyses, unique plant growth facilities and several field research stations.
Environmental stress such as heat stress inhibits plant development. At the Institute of Phytopathology, we want to understand the interaction and interference of plant stress and developmental pathways. We are particularly interested in understanding the interconnection of the highly regulated DNA damage response (DDR) and heat stress pathways with plant growth and development processes. While we have a solid understanding of principle regulatory processes we lack the necessary molecular and genetic details of these pathways. Combining single cell transcriptomics and targeted bioinformatics on transcription factors, we study plant growth-regulating processes under stress at single cell resolution. With the help of functional genetics we aim to uncouple DDR and stress responses from growth regulation to receive plants with robust development under climate stress.
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Single cell regulation of growth processes in plants under heat stress
Single cell RNA-seq (scRNA-seq) can assign gene regulation profiles to single cells along the root developmental axis. Root growth depends on cell division and cell expansion regulated by the mitotic cell cycle and endocycle, respectively. The DNA damage response (DDR) monitors both cycles and halts them in the case of DNA damage caused by environmental cues such as heat stress (HS). We have used scRNA-seq in Arabidopsis roots to comprehensively catalogue genes participating in the mitotic cell cycle and endocycle at single cell resolution. Moreover, we assigned genes to the specific cycle phases of individual cells along the root developmental axis. We further used our recently developed promoter analysis tool (paired motif enrichment tool) to identify key transcription factors (TFs) involved in the regulation of these cycle genes. The aim of this project to identify mechanisms regulating DDR gene networks under heat stress. In a collaborative team effort, single cell RNA-seq experiments will be performed with Arabidopsis and tomato roots exposed to HS and DDR to map DDR and HS regulatory gene networks in individual cells. Based on these data set and using functional genetics, hub TFs and their function in regulating growth under heat stress will be deciphered. In the long term, the knowledge gained in this project will be essential in the development of crops with improved development under climate stress.
Contact : patrick.schaefer@agrar.uni-giessen.de

Host laboratory 6: Chromatin Organization and Function | Centre of Plant Structural and Functional Genomics – Institute of Experimental Botany (IEB)
Institute of Experimental Botany AS CR, v. v. i., Šlechtitelů 31, 779 00 Olomouc, Czech Republic
Presentation

IEB is the prime research institute for basic plant sciences in the Czech Republic. Its labs conduct research in plant genetics and genomics, physiology and biotechnology. The IEB centre in Olomouc is a wold-wide recognized hotspot for plant genome research. The institute’s motto is “Cutting edge research for public well-being” and IEB coordinates the program “Foods for the Future” of the Czech Academy of Sciences that offers the latest technologies and know-how for the purpose of plant breeding. The research team chromatin Organization and Function, led by Ales Pecinka, focuses on understanding the molecular mechanisms responsible for the (1) 4D organization of plant genomes (2) DNA repair in the context of chromatin and (3) epigenetic regulatory mechanisms in plant development and stress responses. Our favorite models include fast growing dicot Arabidopsis and economically improtant diploid cereal barley.
Discover the project
Developing reporters for in vivo monitoring of genome stability under DNA damage and heat stress in barley
We have developed a series of reporter lines for in vivo analysis of chromatin organisation and dynamics in barley (Kaduchová et al., Plant J, 2023). The goals of the new Ph.D. project is to extend this platform for a module that will assess DNA damage responses in living barley tissues and thus allow for non-invasive monitoring of responses to specific stresses, including heat. The specific aims of this research project will be: (i) to develop a series of DNA damage response markers for barley, (ii) to combine these markers with existing chromatin reporter lines and DNA damage repair mutants, and (iii) to analyse their cellular responses to DNA damage and temperature stress at different developmental stages.
Contact : pecinka@ueb.cas.cz

Host laboratory 7: Regulation of Plant Morphogenesis group | HUN-REN Biological Research Centre
HUN-REN BRC, Institute of Plant Biology (Szeged)
Presentation

The HUN-REN Biological Research Centre, Szeged (HUN-REN BRC Szeged), is a leading institution in Hungarian biological research with international recognition. The HUN-REN BRC comprises four institutes: Biophysics, Biochemistry, Genetics, and Plant Biology, employing about 260 scientists. Research spans molecular and cell biology, including industrial bacterial use, cultivated plant enhancement, human health, and environmental protection. Though primarily a basic research centre, HUN-REN BRC scientists significantly contribute to biotechnological company development and education. Their high-quality research has been acknowledged by the European Molecular Biological Organization (EMBO), and in 2000, the European Union designated HUN-REN BRC as a “Centre of Excellence.”
The Regulation of Plant Morphogenesis group aims to understand the flexible growth and developmental strategies of plants that enable repeated adaptation to changing environments. We seek to identify key molecular players central to controlling plant morphogenesis while responding to environmental changes. We hypothesize that such mechanisms enable plants to adjust their form and function based on environmental conditions. Beyond enhancing basic biological knowledge, this research could lead to the development of improved plant varieties that can either adapt or maintain growth under adverse conditions, depending on breeding objectives. Our laboratory, among other topics, investigates plants’ developmental response to increased ambient temperatures in light of forecasted climate change scenarios.
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Functional analysis of the E2F-RBR-DREAM regulatory network at non-stressful and heat stress conditions
Our research has focused on growth control networks in Arabidopsis, with particular emphasis on the role of the RBR-E2F-DREAM pathway in cell division, cellular quiescence, and genomic stability. Recent findings indicate that cultivation of Arabidopsis at elevated, non-stressful temperatures enhance shoot and root meristem proliferation through modification of E2F-RBR activity, resulting in accelerated development, in contrast to heat stress, which inhibits growth. We propose to investigate the RBR-E2F-DREAM pathway under varying temperature conditions in different species, including Arabidopsis and potato. The objective is to identify and characterize potato RBR-E2F-DREAM complexes involved in the regulation of tuber formation under inductive and repressive temperatures. Potato DREAM components will be identified in vivo utilizing specific antibodies against key E2Fs and RBR, or tagged constructs and lines. Protein complexes will be isolated and analysed using mass spectrometry. Mutants and overexpression lines for DREAM components will be generated and phenotyped using the PSI platform to determine yield and growth habit. Solynta’s hybrid breeding lines will also be utilized. This investigation aims to enhance our understanding of plant-specific DREAM regulation and its role in growth control, potentially leading to novel methods for improving temperature tolerance.
Contact : magyar.zoltan@brc.hu

Host laboratory 8: Seed Molecular Physiology | Department of Biology and Biotechnology (DBB) – University of Pavia (UNIPV)
Università degli Studi di Pavia, Department of Biology and Biotechnology L. Spallanzani, Via Ferrata 9 – 27100 Pavia (PV)
Presentation

The Department of Biology and Biotechnology (DBB) gathers scientists from multiple disciplines of animal and plant science, interacting in a stimulating research environment. In 2018, DBB has been awarded by multi-million funding ‘Department of Excellence’ for infrastructure upgrade and excellence recruitment. DBB currently coordinates the Research Doctorate in Genetics, Molecular and Cellular Biology. Seed Molecular Physiology Laboratory (SMP)-DBB and Plant Biotechnology Laboratory (PBL)-DBB own a long-term experience in the study of the molecular bases of seed quality and DNA damage response (DDR) in plants.
The Research Team led by Alma Balestrazzi focuses on understanding the molecular mechanisms underlying the seed response to priming in model and crop species by i) looking at the role of DNA damage response and genome maintenance mechanisms in the context of the pre-germinative metabolism, and ii) exploring the complex dynamics of the seed transcriptome, proteome, and metabolome as sources of novel seed quality hallmarks. Knowledge from basic research is translated into improved seed priming protocols, aligned with the need of smart and sustainable solutions to improve crop resilence in the current climate change scenario.
Discover the project
Priming-induced DDR signatures contributing to heat stress tolerance
Tomato is a widely grown vegetable, relevant for human consumption. Recurrent heat waves episodes pose production at risk. Pre-sown treatments applied to tomato seeds can alleviate the harmful effect of high temperature, enhancing the protective mechanisms in the context of seed pre-germinative metabolism and during plant growth. Since seed vigour is dependent on effective DNA repair and antioxidant response triggered during early imbibition, a thorough understanding of the molecular mechanisms underlying germination and seed ageing processes would allow the development of new and more effective priming techniques. Our aim is to design optimised, sustainable priming protocols for tomato seeds, minimizing the influence of genotype and seed lot; to this purpose, the seed response to treatments will be dissected at the molecular levels with dedicated profiles of gene expression changes, DDR and metabolites. Attention will be focused on DDR signatures contributing to enhanced thermotolerance.
Contact : alma.balestrazzi@unipv.it

Host laboratory 9: Labdeers s.r.o.
Seed Phenotyping Centre, Antonina Navratila, 1219/13, Boskovice, 680 01, CZECH REPUBLIC
Presentation

We in Labdeers develop state-of-the-art technology for single-seed and seed-to-plant phenotypical analysis, while providing our experience and know-how in the form of expert scientific services. We found a way of non-invasive individual seed processing and analysis starting at 80um size, suitable for small seed species analysis including the Arabidopsis. Our international team consists of specialists in plant molecular biology and genetics, electro, mechanical and software engineering. Common interdisciplinary understanding is a key point for the realization of project ideas with the emphasis to plant science. We focus on plant research as a priority for life in the second millennium.
The model plat Arabidopsis thaliana is used by thousands of scientists worldwide. By testing the Arabidopsis seeds we showed that both precise seed-to-seed positioning and seed phenotyping have a direct impact on the early postembryonal plant growth. The early postembryonal growth is in the main focus of basic research as well as of breeders in-field application. In this project, we would like to implement new strategies of seed phenotyping and examine our results in other plant species.
Technolgy-driven science is one of the cornerstones of science development in all areas of research. As part of our team at Labdeers s.r.o. (a Start-up), you will gain experience in a dynamic work environment in non-academic sector. You will have the opportunity to work in the Seed Phenotyping Centre and contribute to the development of computional algorithms to better understand individual seed traits and its possible impact to plant growth. Additionally, the project allows you to conduct advanced analytical and molecular biology techniques at our partner institutions, including the Institute of Experimental Botany of the Czech Academy of Sciences (Olomouc, CZ) and Université Paris-Saclay (France, Prof. C. Raynaud). Your studies will be supported by Masaryk University in Brno, which is recognized as one of the top 400 universities in the QS World University Rankings/2023. We look forward to your application and the possibility of working together in advancing plant genetics research.
Discover the project
Advanced seed phenotyping and precise seeding for genetics and plant breeding
Plants produce a wide variety of seed types as a survival strategy to cope with diverse environmental conditions. This adaptability is essential for responding to changes in their environment. We showed that both precise seed-to-seed positioning and seed phenotyping have a direct impact on the early postembryonal plant growth. In this project we will test the comparison between Arabidopsis wild-type and DNA Damage Response mutants, in control and heat stress conditions as a model system for testing of existing algorithms. In the case new phenotypical traits will appear we will implement new computional algorithms and potentially AI based analysis for the consecutive seed sorting. Transcriptomics and ATAC-seq experiments will be implemented to probe the molecular mechanisms underlying seed phenotypic variability. In parallel, these analyses will be extended to other species and seeding protocols/computational algorithms for crop species with larger seeds, first on tomato that produces relatively small seeds, than on barley. We count as well with priming methods with the emphasis on the statistical variations and Gaussian distribution of individual phenotypical traits and combined seed traits. Based on large seed datasets, we will perform seed-to-plant phenotypical experiments with an emphasis on gene expression in young seedlings. We assume that by targeted seed selection it will be possible to reduce biological variability in at least 10% from extreme percentiles of the existing distribution. Finally, we will expand results of precise seed-to-seed positioning using DNA Damage Response lines and different priming strategies. It is possible to assume different plant growth responses of DNA Damage Response mutant lines in neighbourhood growth experiments. Understanding of these processes is of key importance for developmental biology and breeding.
Such scientific results will emphasize the significance of our understanding of individual seed phenotypes. Ultimately, the effective selection of seeds and the correlation of observed seed traits with growth characteristics may be crucial for plant adaptation and breeding in the face of ongoing climate change.
Contact : dobisova@labdeers.com
