A5048056349- Plant Stress Responses and Tolerance
- Plant-Microbe Interactions and Immunity
- Photosynthetic Processes and Mechanisms
- Nitric Oxide and Endothelin Effects
- Plant nutrient uptake and metabolism
- Plant Parasitism and Resistance
- Plant responses to water stress
- Legume Nitrogen Fixing Symbiosis
- Plant Micronutrient Interactions and Effects
- Plant Molecular Biology Research
- Algal biology and biofuel production
- Agriculture, Plant Science, Crop Management
- Plant pathogens and resistance mechanisms
- Plant tissue culture and regeneration
- Plant Gene Expression Analysis
- Transgenic Plants and Applications
- Plant Pathogens and Resistance
- Redox biology and oxidative stress
- Toxin Mechanisms and Immunotoxins
- Plant Pathogens and Fungal Diseases
- Endoplasmic Reticulum Stress and Disease
- Ubiquitin and proteasome pathways
- Genomics, phytochemicals, and oxidative stress
- Plant Reproductive Biology
- Plant Disease Resistance and Genetics
Institut Agro Dijon
2016-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2016-2025
Agroécologie
2016-2025
Université de Bourgogne
2013-2024
Université Bourgogne Franche-Comté
2016-2024
Centre National de la Recherche Scientifique
2014-2023
Institute of Biochemistry and Biophysics, Polish Academy of Sciences
2012
Laboratoire des Interactions Plantes Micro-Organismes
2012
Canadian Nautical Research Society
2009-2012
Maison des Sciences de l’Homme de Dijon
2011
Reactive oxygen species are believed to perform multiple roles during plant defense responses microbial attack, acting in the initial and possibly as cellular signaling molecules. In animals, nitric oxide (NO) is an important redox-active molecule. Here we show that infection of resistant, but not susceptible, tobacco with mosaic virus resulted enhanced NO synthase (NOS) activity. Furthermore, administration donors or recombinant mammalian NOS plants suspension cells triggered expression...
Abstract Nitric oxide (NO) functions as a cell-signaling molecule in plants. In particular, role for NO the regulation of iron homeostasis and plant response to toxic metals has been proposed. Here, we investigated synthesis plants exposed cadmium (Cd2+), nonessential metal. We demonstrate that Cd2+ induces roots leaves Arabidopsis (Arabidopsis thaliana) seedlings. This production, which is sensitive synthase inhibitors, does not involve nitrate reductase AtNOA1 but requires IRT1, encoding...
Systemic acquired resistance (SAR) is a form of that protects plants against broad spectrum secondary infections. However, exploiting SAR for the protection agriculturally important warrants thorough investigation mutual interrelationships among various signals mediate SAR. Here, we show nitric oxide (NO) and reactive oxygen species (ROS) serve as inducers in concentration-dependent manner. Thus, genetic mutations either inhibit NO/ROS production or increase NO accumulation (e.g., mutation...
Summary A growing body of evidence suggests that nitric oxide (NO), an important signalling and defence molecule in mammals, plays a key role activating disease resistance plants, acting as possibly direct anti‐microbial agent. Recently, novel fluorophore (diaminofluorescein diacetate, DAF‐2 DA) has been developed which allows bio‐imaging NO vivo . Here we use the cell‐permeable DA, conjunction with confocal laser scanning microscopy, for real‐time imaging living plant cells. Epidermal...
ABSTRACT The function of nitric oxide (NO), a gaseous free radical emitted by many plants, is incompletely understood. In the present study hypothesis that NO generation, like reactive oxygen species, occurs as general response to different environmental cues was tested. Leaf peels and mesophyll cell suspensions Nicotiana tabacum cv. Xanthi were loaded with NO‐specific fluorophore, diaminofluorescein, subjected an abiotic stressor. Light stress mechanical injury had no apparent effect on...
Abstract Nitric oxide (NO) has recently emerged as an important cellular mediator in plant defense responses. However, elucidation of the biochemical mechanisms by which NO participates this signaling pathway is still its infancy. We previously demonstrated that cryptogein, elicitor tobacco responses, triggers a burst within minutes epidermal sections from leaves (Nicotiana tabacum cv Xanthi). Here, we investigate events mediate production, and analyze activities cryptogein transduction...
Recent evidence suggests an important role for nitric oxide (NO) signaling in plant-pathogen interactions. Additional elucidation of the NO plants will require identification targets. Since aconitases are major targets animals, we examined effect on tobacco (Nicotiana tabacum) aconitase. The aconitases, like their animal counterparts, were inhibited by donors. cytosolic aconitase addition to being a key redox and sensor, is converted into mRNA binding protein (IRP, or iron-regulatory...
Treatment of suspension-cultured tobacco (Nicotiana tabacum var Xanthi) cells with cryptogein, a proteinaceous elicitor from Phytophthora cryptogea, induced great stimulation Ca2+ influx within the first minutes. is essential for initiation cryptogein-induced responses, since ethyleneglycol-bis([beta]-amino-ethyl ether)-N,N[prime]-tetraacetic acid or La3+, which block entrance, suppress responses such as extracellular alkalinization, active oxygen species, and phytoalexin production....
Nitric oxide (NO) regulates a wide range of plant processes from development to environmental adaptation. In this study, we investigated the production and/or function NO in Arabidopsis thaliana leaf discs and plants elicited by oligogalacturonides (OGs) challenged with Botrytis cinerea. We provided evidence that OGs triggered fast long lasting which was Ca(2+) dependent involved nitrate reductase (NR). Accordingly, an increase both NR activity transcript accumulation. also sensitive...
Pyoverdines are siderophores synthesized by fluorescent Pseudomonas spp. Under iron-limiting conditions, these high-affinity ferric iron chelators excreted bacteria in the soil to acquire iron. produced beneficial ameliorate plant growth. Here, we investigate physiological incidence and mode of action pyoverdine from fluorescens C7R12 on Arabidopsis (Arabidopsis thaliana) plants grown under iron-sufficient or iron-deficient conditions. Pyoverdine was provided medium its iron-free structure...
Several studies focusing on elucidating the mechanism of NO (nitric oxide) signalling in plant cells have highlighted that its biological effects are partly mediated by protein kinases. The identity these kinases and details how modulates their activities, however, remain poorly investigated. In present study, we attempted to clarify mechanisms underlying action regulation NtOSAK (Nicotiana tabacum osmotic stress-activated kinase), a member SNF1 (sucrose non-fermenting 1)-related kinase 2...