A5038532156- Photosynthetic Processes and Mechanisms
- Plant Stress Responses and Tolerance
- Light effects on plants
- Plant responses to elevated CO2
- Plant Molecular Biology Research
- Plant responses to water stress
- Plant Gene Expression Analysis
- Plant-Microbe Interactions and Immunity
- Plant and Biological Electrophysiology Studies
- Genomics and Phylogenetic Studies
- Plant Parasitism and Resistance
- Plant nutrient uptake and metabolism
- Biofuel production and bioconversion
- RNA and protein synthesis mechanisms
- Bioenergy crop production and management
- Environmental Toxicology and Ecotoxicology
- Biochemical and biochemical processes
- Advancements in Materials Engineering
- Genomics, phytochemicals, and oxidative stress
- Plant Pathogens and Fungal Diseases
- Advances in Cucurbitaceae Research
- Animal Disease Management and Epidemiology
- Plant Reproductive Biology
- Plant Water Relations and Carbon Dynamics
- Nanoparticles: synthesis and applications
Warsaw University of Life Sciences
2016-2025
University of Life Sciences in Lublin
2008-2020
University of Copenhagen
2019
Plant Breeding and Acclimatization Institute - National Research Institute
2018
Koszalin University of Technology
2015
Landscape Institute
2015
Institute of Biochemistry and Biophysics, Polish Academy of Sciences
2013
University of Essex
2004-2009
Polish Academy of Sciences
1994-2009
Leibniz Institute of Plant Genetics and Crop Plant Research
2009
Land plants are sessile and have developed sophisticated mechanisms that allow for both immediate acclimatory responses to changing environments. Partial exposure of low light-adapted Arabidopsis excess light results in a systemic acclimation excitation energy consequent photooxidative stress unexposed leaves. Thus, possess mechanism communicate systemically, allowing them mount defense against further episodes such stress. Systemic redox changes the proximity photosystem II, hydrogen...
Exposure of Arabidopsis plants that were maintained under low light (200 mumol photons m-2 sec-1) to excess (2000 for 1 hr caused reversible photoinhibition photosynthesis. Measurements photosynthetic parameters and the use electron transport inhibitors indicated a novel signal transduction pathway was initiated at plastoquinone regulated, least in part, by redox status pool. This signal, which preceded photooxidative burst hydrogen peroxide (H2O2) associated with photosynthesis, resulted...
The systemic response of plants to pathogen infection (systemic acquired resistance [[SAR][1]]), or wounding has been extensively studied with a network numerous compounds and signals implicated (for review, see [Dempsey Klessig, 2012][2]; [Shah Zeier, 2013][3]). In recent years new
Hydrogen peroxide (H2O2) is produced predominantly in plant cells during photosynthesis and photorespiration, to a lesser extent, respiration processes. It the most stable of so-called reactive oxygen species (ROS), therefore plays crucial role as signalling molecule various physiological Intra- intercellular levels H2O2 increase environmental stresses. interacts with thiol-containing proteins activates different pathways well transcription factors, which turn regulate gene expression...
Abstract The mutant regulator of APX2 1-1 (rax1-1) was identified in Arabidopsis thaliana that constitutively expressed normally photooxidative stress-inducible ASCORBATE PEROXIDASE2 (APX2) and had ≥50% lowered foliar glutathione levels. Mapping revealed rax1-1 is an allele γ-GLUTAMYLCYSTEINE SYNTHETASE 1 (GSH1), which encodes chloroplastic γ-glutamylcysteine synthetase, the controlling step biosynthesis. By comparison with GSH1 cadmium hypersensitive 2, expression 32 stress-responsive genes...
Abstract Plants are simultaneously exposed to abiotic and biotic hazards. Here, we show that local systemic acclimation in Arabidopsis thaliana leaves response excess excitation energy (EEE) is associated with cell death regulated by specific redox changes of the plastoquinone (PQ) pool. These cause a rapid decrease stomatal conductance, global induction ASCORBATE PEROXIDASE2 PATHOGEN RESISTANCE1, increased production reactive oxygen species (ROS) ethylene signals through ETHYLENE...
Plant Receptor-like/Pelle kinases (RLK) are a group of conserved signalling components that regulate developmental programs and responses to biotic abiotic stresses. One the largest RLK groups is formed by Domain Unknown Function 26 (DUF26) RLKs, also called Cysteine-rich Receptor-like Kinases (CRKs), which have been suggested play important roles in regulation pathogen defence programmed cell death. Despite vast number RLKs present plants, however, only few them functionally...
Cysteine-rich receptor-like kinases (CRKs) are transmembrane proteins characterized by the presence of two domains unknown function 26 (DUF26) in their ectodomain. The CRKs form one largest groups protein plants, but biological functions have so far remained largely uncharacterized. We conducted a large-scale phenotyping approach nearly complete crk T-DNA insertion line collection showing that control important aspects plant development and stress adaptation response to biotic abiotic...
Summary In Arabidopsis leaves, high light stress induces rapid expression of a gene encoding cytosolic ascorbate peroxidase ( APX2 ), whose is restricted to bundle sheath cells the vascular tissue. Imaging chlorophyll fluorescence and production reactive oxygen species (ROS) indicated that followed localised increase in hydrogen peroxide (H 2 O ) resulting from photosynthetic electron transport cells. Furthermore, leaf transpiration rate also increased prior expression, suggesting water...
Abstract The lsd1 mutant of Arabidopsis fails to limit the boundaries hypersensitive cell death response during avirulent pathogen infection and initiates unchecked lesions in long day photoperiod giving rise runaway (rcd) phenotype. We link here initiation propagation rcd activity photosystem II, stomatal conductance ultimately photorespiratory H2O2. A cross with chlorophyll a/b binding harvesting-organelle specific (designated cao) mutant, which has a reduced II antenna, led lesion...
Abstract Over 1,600 genes encoding carbohydrate-active enzymes (CAZymes) in the Populus trichocarpa (Torr. & Gray) genome were identified based on sequence homology, annotated, and grouped into families of glycosyltransferases, glycoside hydrolases, carbohydrate esterases, polysaccharide lyases, expansins. Poplar (Populus spp.) had approximately 1.6 times more CAZyme than Arabidopsis (Arabidopsis thaliana). Whereas most proportionally increased, xylan pectin-related underrepresented GT1...
Abstract Although light is essential for photosynthesis, excess can damage the photosynthetic apparatus and deregulate other cellular processes. Thus, protective integrated regulatory responses that dissipate of absorbed energy simultaneously optimize photosynthesis processes under variable conditions prove highly adaptive. Here, we show local systemic to an episode are associated with photoelectrophysiological signaling (PEPS) as well changes in nonphotochemical quenching reactive oxygen...
In this article, the role of reactive oxygen species (ROS) hydrogen peroxide (H 2 O ) as a signaling molecule involved in plant response to sudden change light intensity will be considered spatial context.The relatively low reactivity H compared with other ROS (Halliwell and Gutteridge, 1985) might suggest that it could diffuse from site production initiate intracellular systemic (Mullineaux Karpinski, 2002).However, another view is promulgated here allows for compartment-specific -mediated...
Abstract Glutathione peroxidases (GPXs; EC 1.11.1.9) are key enzymes of the antioxidant network in plants and animals. In order to investigate role systems plant chloroplasts, we generated Arabidopsis (Arabidopsis thaliana) transgenic lines that depleted specifically chloroplastic (cp) forms GPX1 GPX7. We show reduced cpGPX expression, either with lower total expression (GPX1 GPX7) or a gpx7 insertion mutant, leads compromised photooxidative stress tolerance but increased basal resistance...
Abstract Aerenchyma tissues form gas-conducting tubes that provide roots with oxygen under hypoxic conditions. Although aerenchyma have received considerable attention in Zea mays, the signaling events and genes controlling induction remain elusive. Here, we show Arabidopsis thaliana hypocotyls lysigenous response to hypoxia this process involves H2O2 ethylene signaling. By studying mutants are deregulated for excess light acclimation, cell death, defense responses, find formation of depends...
Cucumber (Cucumis sativus L.), a widely cultivated crop, has originated from Eastern Himalayas and secondary domestication regions includes highly divergent climate conditions e.g. temperate subtropical. We wanted to uncover adaptive genome differences between the cucumber cultivars what sort of evolutionary molecular mechanisms regulate genetic adaptation plants different ecosystems organism biodiversity. Here we present draft sequence Cucumis North-European Borszczagowski cultivar (line...
Summary ASCORBATE PEROXIDASE 2 ( APX2 ) encodes a key enzyme of the antioxidant network. In excess light‐stressed Arabidopsis leaves, photosynthetic electron transport (PET), hydrogen peroxide (H O and abscisic acid (ABA) regulate expression. Wounded leaves showed low induction expression, when exposed to light, expression was increased synergistically. Signalling pathways dependent upon jasmonic (JA), chitosan ABA were not involved in wound‐induced , but shown require PET preceded by...