A5074280705- Heavy metals in environment
- Plant Stress Responses and Tolerance
- Heavy Metals in Plants
- Photosynthetic Processes and Mechanisms
- Plant-Microbe Interactions and Immunity
- Plant Micronutrient Interactions and Effects
- Plant Gene Expression Analysis
- Radioactivity and Radon Measurements
- Allelopathy and phytotoxic interactions
- Plant tissue culture and regeneration
- Agricultural Science and Fertilization
- Wastewater Treatment and Reuse
- Plant Pathogenic Bacteria Studies
- Seed Germination and Physiology
- Coal and Its By-products
- Plant Growth Enhancement Techniques
- Phosphorus and nutrient management
- Plant Parasitism and Resistance
- Soil and Land Suitability Analysis
- Constructed Wetlands for Wastewater Treatment
- Aquatic Ecosystems and Phytoplankton Dynamics
- Redox biology and oxidative stress
- Insect-Plant Interactions and Control
- Seedling growth and survival studies
- Heat shock proteins research
Tanta University
2004-2025
Cluster of Excellence on Plant Sciences
2019-2021
Heinrich Heine University Düsseldorf
2014-2021
King Khalid University
2020
National Institute of Advanced Industrial Science and Technology
2014
Agriculture and Food
2013
The University of Queensland
2007-2013
Plant Industry
2007
The Arabidopsis thaliana basic helix-loop-helix Leu zipper transcription factor (TF) MYC2/JIN1 differentially regulates jasmonate (JA)-responsive pathogen defense (e.g., PDF1.2) and wound response VSP) genes. In this study, genome-wide transcriptional profiling of wild type mutant myc2/jin1 plants followed by functional analyses has revealed new roles for MYC2 in the modulation diverse JA functions. We found that negatively Trp Trp-derived secondary metabolism such as indole glucosinolate...
Summary Heterotrimeric G proteins are involved in the defense response against necrotrophic fungi Arabidopsis. In order to elucidate resistance mechanisms involving heterotrimeric proteins, we analyzed effects of Gβ (subunit deficiency mutant agb1‐2 on pathogenesis‐related gene expression, as well genetic interaction between and a number mutants established pathways. Gβ‐mediated signaling suppresses induction salicylic acid (SA)‐, jasmonic (JA)‐, ethylene (ET)‐ abscisic (ABA)‐dependent genes...
Reactive oxygen species (ROS) are produced in plant cells response to diverse biotic and abiotic stresses as well during normal growth development. Although a large number of transcription factor (TF) genes up- or down-regulated by ROS, currently very little is known about the functions these TFs oxidative stress. In this work, we examined role ERF6 (ETHYLENE RESPONSE FACTOR6), an AP2/ERF domain-containing TF, stress responses Arabidopsis. Mutant analyses showed that NADPH oxidase (RbohD)...
In natural habitats, especially in arid areas, plants are often simultaneously exposed to multiple abiotic stresses, such as salt, osmotic and heat stresses. However, most analyses of gene expression stress responses examine individual this report, we compare combined We show that treatments with mannitol induce a unique pattern is not simple merge the responses. Under conditions, salt stress-responsive genes increased levels similar or higher than those measured single but lower levels....
Abstract Environmental stresses such as drought, heat, and salinity limit plant development agricultural productivity. While individual have been studied extensively, much less is known about the molecular interaction of responses to multiple stresses. To address this problem, we investigated Arabidopsis single, double, triple combinations salt, osmotic, heat A metabolite profiling analysis indicated production specific compatible solutes depending on nature stress applied. We found that in...
Reactive oxygen species (ROS) are highly controlled signaling that involved in regulating gene expression response to different environmental cues. The production of heat shock proteins (HSPs) is a key strategy plants use defend themselves against diverse stresses, including oxidative stress. In this study, patterns the Arabidopsis
Abstract The food security in today's world is endangered by several threats, including accelerated increases the world's population, depletion of Earth's resources, exaggerated environmental pollution, and foreseen climatic changes. As a strategy to diminish these wise disposal huge amounts sewage sludge (SS) agricultural soils as bio‐fertilizer represents worthy practice for recirculating valuable nutrients chains via crop plants. current study was designed scientifically test feasibility...
The application of sewage sludge (SS) in agriculture is an alternative disposal method for wastewater recycling and soil fertilization. This study evaluated heavy metal bioaccumulation, growth, yield Pisum sativum (pea) grown agricultural amended with SS at rates 0, 10, 20, 30, 40 g/kg. results show that root, shoot, pod length, biomass, number leaves pods increased amendments 10 20 g/kg, while declined 30 had greater salinity organic content than the soil. Heavy metals postharvest samples...
Plants are frequently exposed to simultaneous abiotic and biotic stresses, a condition that induces complex responses, negatively affects crop productivity is becoming more exacerbated with current climate change. In this study, we investigated the effects of individual combined heat osmotic stresses on Arabidopsis susceptibility biotrophic pathogen Pseudomonas syringae pv. tomato (Pst) necrotrophic Botrytiscinerea (Bc). Our data showed caused an enhanced negative impact plant disease...
The present study aims to develop prediction models for estimating the potential uptake of 10 heavy metals (HMs) (cadmium, Cd; cobalt, Co; chromium, Cr; copper, Cu; iron, Fe; manganese, Mn; molybdenum, Mo; nickel, Ni; lead, Pb; zinc, Zn) by tissues Pisum sativum (root, shoot and pod) grown in soil amended with sewage sludge (SS) under greenhouse conditions. Soil organic matter (OM) was estimated loss-on-ignition at 550 °C 2 h. pH determined shaking pure water a 1:5 ratio. For HM...
The impact of heat shock on minimising the activity photosystem 2 (PS2) initiating high lipid peroxidation (POL) level and consequently changes in enzymatic-antioxidant protective system was studied seedlings two Egyptian cultivars barley (Giza 124 125). Heat doses (35 45 °C for 2, 4, 6, 8 h) decreased chlorophyll (Chl) contents coupled with an increase Chl a/b ratio, diminished Hill reaction activity, quenched a fluorescence emission spectra. These parameters reflect disturbance structure,...
Soil contamination with lead (Pb) represents a common heavy metal stress for cultivated plants. In the current study, effects of Pb on wheat (Triticum aestivum) plants were evaluated, and alleviating roles purslane chard natural weed extracts assessed. The results showed that treatment (100 mM) significantly reduced growth seedlings diminished plant yield parameters. Moreover, inhibited photosynthetic activity measured as Fv/Fm. levels various markers increased under was verified by...
The current study aims at forming new prediction models to be employed in the approximating possible uptake of a range 10 heavy metals (HMs) (Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb and Zn) by Hordeum vulgare tissues including roots, shoots grains following its growth soil amended with sewage sludge (SS) using conditions greenhouses. present determined an insignificant difference between actual predicted quantities HMs three t values. majority were acceptable exception Cd shoots, Cu roots....
Sewage sludge enhances tomato growth and improves fruit-yield quality by restoring soil fertility | Ebrahem Eid, Kamal Shaltout, Saad Alamri, Sulaiman Alrumman, Ahmed Hussain, Nasser Sewelam, Gehad Ragab Agricultural Journals