A5107304738- Plant Stress Responses and Tolerance
- Plant Micronutrient Interactions and Effects
- Selenium in Biological Systems
- Aluminum toxicity and tolerance in plants and animals
- Trace Elements in Health
- Neuropeptides and Animal Physiology
- Neuroendocrine regulation and behavior
- Receptor Mechanisms and Signaling
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Plant nutrient uptake and metabolism
- Heavy Metal Exposure and Toxicity
- Nitrogen and Sulfur Effects on Brassica
- Heavy Metals in Plants
- Heavy metals in environment
- Plant Parasitism and Resistance
- Stress Responses and Cortisol
- Plant and animal studies
- Nanoparticles: synthesis and applications
- Plant responses to water stress
- Seed Germination and Physiology
- Potato Plant Research
- Sleep and Wakefulness Research
- Polymer-Based Agricultural Enhancements
- Sleep and related disorders
University of Szeged
2014-2023
Budapest University of Technology and Economics
2008
Background and Aims Zinc (Zn) is an essential micronutrient naturally present in soils, but anthropogenic activities can lead to accumulation the environment resulting damage plants. Heavy metals such as Zn induce oxidative stress generation of reactive oxygen nitrogen species (ROS RNS), which reduce growth yield crop This study assesses interplay these two families molecules order evaluate responses roots Brassica under high concentrations Zn. Methods Nine-day-old hydroponically grown...
Elevated levels of selenium (Se) cause toxicity in non-accumulator plant species. The primary reasons for toxic Se effect have been considered to be selenoprotein accumulation and oxidative stress. However, based on our recent paper Plant Cell Reports previous literature data we suggest that disturbances the homeostasis both reactive oxygen nitrogen species result selenium-induced nitro-oxidative stress, contributing toxicity. most characteristic symptom exposure is inhibited root elongation...
Both nitric oxide (NO) and strigolactone (SL) are growth regulating signal components in plants; however, regarding their possible interplay our knowledge is limited. Therefore, this study aims to provide new evidence for the between NO SL formation of root system architecture using complementary pharmacological molecular biological approaches model Arabidopsis thaliana grown under stress-free conditions. Deficiency synthesis or signalling (max1-1 max2-1) resulted elevated S-nitrosothiol...
Selenium (Se) enrichment of Stevia rebaudiana Bertoni can serve a dual purpose, on the one hand to increase plant biomass and stress tolerance other produce Se fortified plant-based food. Foliar spraying (0, 6, 8, 10 mg/L selenate, 14 days) plantlets resulted in slightly decreased stevioside rebaudioside A concentrations, it also caused significant increment stem elongation, leaf number, content, suggesting that foliar supplementation be used as biofortifying approach. Furthermore, limited...
Nitric oxide (NO) is a versatile signal molecule that mediates environmental and hormonal signals orchestrating plant development. NO may act via reversible S-nitrosation of proteins during which an moiety added to cysteine thiol form S-nitrosothiol. In plants, several implicated in signaling have been reported undergo S-nitrosation. Here, we report the Arabidopsis ROP2 GTPase further potential target NO-mediated regulation. The was found be required for root shortening effect NO. inhibits...
Similar to animals, it has recently been proven that nitro-fatty acids such as nitro-linolenic acid and nitro-oleic (NO2-OA) have relevant physiological roles signalling molecules also in plants. Although NO2-OA is of great therapeutic importance, its presence plants a free fatty not observed so far. Since Brassica napus (oilseed rape) crop with high oleic content, the abundance tissues can be assumed. Therefore, we quantified B. seeds differently developed seedlings. In all samples, was...
Selenium (Se) results in primary root shortening and the concomitant induction of lateral roots (LRs) (stress-induced morphogenic response, SIMR). Both ethylene (ET) nitric oxide (NO) are gasotransmitters interacting with each other during plant growth regulation; however, their involvement interplay LR have not been examined so far. This study investigates effect Se on ET NO levels interaction wild-type (WT) insensitive etr1-1 Arabidopsis. In WT, at 15 µM concentration triggered emergence...
Selenium (Se) hyperaccumulators are capable of uptake and tolerate high Se dosages. Excess Se-induced oxidative responses were compared in Astragalus bisulcatus cicer. Plants grown on media supplemented with 0, 25 or 75 μM selenate for 14 days. Both A. cicer accumulated >2000 μg/g dry weight to the shoot but translocation factors below 1 suggesting its non hyperaccumulator nature. showed sensitivity indicated by reduced seedling fresh weight, root growth apical meristem viability, altered...
Metal-polluted areas, especially where municipal sewage is used as fertilizer, often have high concentrations of more than one metal. The development the root system regulated by a complex signaling network, which includes reactive oxygen and nitrogen species. delicate balance endogenous signal can be affected various environmental stimuli including heavy metals (HMs) in excess. Our goal was to analyze microelement homeostasis, architecture, determine underlying changes nitro-oxidative...