A5066802971- Plant Molecular Biology Research
- Plant Reproductive Biology
- Light effects on plants
- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Plant nutrient uptake and metabolism
- Plant Pathogens and Fungal Diseases
- Plant Parasitism and Resistance
- Plant-Microbe Interactions and Immunity
- Plant Surface Properties and Treatments
- Plant Virus Research Studies
- Plant Physiology and Cultivation Studies
- Plant Disease Resistance and Genetics
- Fungal and yeast genetics research
- Plant and Biological Electrophysiology Studies
- Leaf Properties and Growth Measurement
- Plant biochemistry and biosynthesis
- Fern and Epiphyte Biology
- Plant Gene Expression Analysis
- Tree Root and Stability Studies
- Mycotoxins in Agriculture and Food
- Educational Leadership and Innovation
- Family and Patient Care in Intensive Care Units
- Chromosomal and Genetic Variations
- Seed Germination and Physiology
Institut de Biologie Moléculaire des Plantes
2013-2024
Université de Strasbourg
2012-2024
Centre National de la Recherche Scientifique
2013-2024
Centro Nacional de Biotecnología
2008-2022
Consejo Superior de Investigaciones Científicas
2008-2014
Universidad Autónoma de Madrid
2008
Université Paris-Sud
1999-2002
Gibberellins (GAs) are plant hormones involved in the regulation of growth response to endogenous and environmental signals. GA promotes by stimulating degradation nuclear growth–repressing DELLA proteins. In Arabidopsis thaliana, DELLAs consist a small family five proteins that display distinct but also overlapping functions repressing responses. This study reveals RGA-LIKE3 (RGL3) protein is essential fully enhance jasmonate (JA)-mediated We show JA rapidly induces RGL3 expression...
Signaling by the hormones brassinosteroid (BR) and gibberellin (GA) is critical to normal plant growth development required for hypocotyl elongation in response dark elevated temperatures. Active BR signaling essential GA promotion of suppresses dwarf phenotype mutants. Cross-talk between these occurs downstream from DELLAs, as GA-induced destabilization repressors not affected BRs. Here we show that light-regulated PIF4 (phytochrome-interacting factor 4) a phosphorylation target kinase...
Abstract Growth at the shoot apical meristem (SAM) is essential for architecture construction. The phytohormones gibberellins (GA) play a pivotal role in coordinating plant growth, but their SAM remains mostly unknown. Here, we developed ratiometric GA signaling biosensor by engineering one of DELLA proteins, to suppress its master regulatory function transcriptional responses while preserving degradation upon sensing. We demonstrate that this degradation-based accurately reports on cellular...
Ent-kaurenoic acid oxidase (KAO), a class of cytochrome P450 monooxygenases the subfamily CYP88A, catalyzes conversion ent-kaurenoic (KA) to gibberellin (GA) GA12 , precursor all GAs, thereby playing an important role in determining GA concentration plants. Past work has demonstrated importance KAO activity for growth various plant species. In Arabidopsis, this enzyme is encoded by two genes designated KAO1 and KAO2. study, we used approaches determine physiological roles KAO2 throughout...
Summary FT / TFL 1 family members have been known to be involved in the development and flowering plants. In rose, R o KSN , a homologue, is key regulator of flowering, whose absence causes continuous flowering. Our objectives are functionally validate explore its mode action rose. We complemented A rabidopsis tfl1 mutants ectopically expressed continuous‐flowering (CF) Using different protein interaction techniques, we studied interactions with FD possible competition. Arabidopsis mutant by...
Shoot branching is a pivotal process during plant growth and development, antagonistically orchestrated by auxin sugars. In contrast to extensive investigations on hormonal regulatory networks, our current knowledge the role of sugar signalling pathways in bud outgrowth scarce. Based comprehensive stepwise strategy, we investigated glycolysis/the tricarboxylic acid (TCA) cycle oxidative pentose phosphate pathway (OPPP) control outgrowth. We demonstrated that these are necessary for promotion...
As the summer approaches, plants experience enhanced light inputs and warm temperatures, two environmental cues with an opposite morphogenic impact. Key components of this response are PHYTOCHROME B (phyB), EARLY FLOWERING 3 (ELF3), CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1). Here, we used single double mutant/overexpression lines to fit a mathematical model incorporating known interactions these regulators. The fitted recapitulates thermal growth all correctly predicts behavior others not in...
INDETERMINATE DOMAIN (IDD)/ BIRD proteins are a highly conserved plant-specific family of transcription factors which play multiple roles in plant development and physiology. Here, we show that mutation IDD4/IMPERIAL EAGLE increases resistance to the hemi-biotrophic pathogen Pseudomonas syringae, indicating IDD4 may act as repressor basal immune response PAMP-triggered immunity. Furthermore, idd4 mutant exhibits enhanced plant-growth suppressor growth development. Transcriptome comparison...
To understand the evolution of Fot1, a member pogo family widely dispersed in ascomycetes, we have performed phylogenetic survey across genus Fusarium divided into six sections. The taxonomic distribution Fot1 is not homogeneous but patchy; it prevalent oxysporum complex, absent closely related sections, and found five species from most distant section Martiella. Multiple copies were sequenced each strain which element occurs. In three species, nucleotide sequence 98% identical to that F....
Gibberellins (GAs) are phytohormones controlling major aspects of plant growth and development. Although previous studies suggested the existence a transport GAs in plants, nature properties associated with this were unknown. We recently showed through micrografting biochemical approaches that GA12 precursor is chemical form GA undergoing long-distance across organs Arabidopsis. Endogenous moves vascular system from production sites to recipient tissues, which can be converted bioactive...
Autonomous mobility of different copies the Fot1 element was determined for several strains fungal plant pathogen Fusarium oxysporum to develop a transposon tagging system. Two inserted into third intron nitrate reductase structural gene (niaD) were separately introduced two genetic backgrounds devoid endogenous elements. Mobility these observed through phenotypic assay excision based on restoration activity. Inactivation transposase open reading frame (frameshift, deletion, or disruption)...
The ability of transposon impala to inactivate genes involved in pathogenicity was tested Fusarium oxysporum f. sp. melonis. Somatic excision an copy inserted the nitrate reductase-encoding niaD gene positively selected through a phenotypic assay based on restoration reductase activity. Independent events were analyzed molecularly and shown carry reinsertedimpala more than 70% cases. Mapping reinserted elements large NotI-restriction fragments showed that transposes randomly. By screening...