A5071437520- Plant Stress Responses and Tolerance
- Plant nutrient uptake and metabolism
- Genetic diversity and population structure
- Plant responses to water stress
- Plant Micronutrient Interactions and Effects
- Genetic and Environmental Crop Studies
- Legume Nitrogen Fixing Symbiosis
- Photosynthetic Processes and Mechanisms
- Botanical Research and Chemistry
- Wheat and Barley Genetics and Pathology
- Redox biology and oxidative stress
- Plant Pathogens and Fungal Diseases
- Lipid metabolism and biosynthesis
- Evolution and Genetic Dynamics
- Plant Taxonomy and Phylogenetics
- Silicon Effects in Agriculture
- Plant Ecology and Taxonomy Studies
- Chromosomal and Genetic Variations
- Genetic Syndromes and Imprinting
- Glutathione Transferases and Polymorphisms
- Nitrogen and Sulfur Effects on Brassica
- Identification and Quantification in Food
- bioluminescence and chemiluminescence research
- Constructed Wetlands for Wastewater Treatment
- Peanut Plant Research Studies
University of Kairouan
2019-2024
Center of Biotechnogy of Borj Cédria
2011-2023
Biology of Extremophiles Laboratory
2018
Tunis El Manar University
2007
Tunis University
2007
Abstract The possibility to use membrane‐lipid measurements screen barley genotypes for salt resistance was studied. results showed that wild ( Hordeum maritimum ) displayed a typical halophytic response as compared cultivated vulgare L. cv. Manel). Growth, tissue hydration, and photosynthetic activity were less affected by salinity in H. than vulgare. induced effects of long‐term NaCl treatment reflected root membrane lipids remained relatively unchanged barley, whilst they significantly...
Little is known about the ability of cultivated barley ( Hordeum vulgare L.) to recover from salt stress. In a pot experiment, plants (cultivar Lamsi) were treated with up 200 mM NaCl for 0, 15, 30, 45 or 60 d. Plants collected at end each these salt‐treatment periods and grain maturity. Plant growth, leaf organic inorganic solutes, some physiological productivity parameters determined. Salinity reduced fresh dry weight, relative growth rate (RGR), water potential, osmotic potential full...
Summary The nature and extent of long-distance seed dispersal are currently poorly understood, largely due to the inherent difficulty in detecting such a phenomenon. Genetic methods provide one few general approaches that offer potential accurately address this issue. Phenotypic allozymic were applied characterize inter-population sea rocket ( Cakile maritima , Brassicaceae), glabrous succulent annual herb. variation was assessed on 360 individuals sampled from nine populations. diversity...
Abstract Among oil compounds, fatty acids, tocopherols and xanthophylls (lutein zeaxanthin) are of special interest due to their nutritional properties. The identification quantification these compounds in pecan nuts ( Carya illinoinensis ) could therefore be very useful produce functional foods rich this type. This paper reports studies on accumulation the effect ripening content high value‐added compounds. total lipid increased during ripening. Saturated polyunsaturated acids decreased...
SUMMARY Brachypodium hybridum belongs to the Poaceae grass subfamily. It has a close genetic relationship with temperate cereal crops, which means that it can be used as model for and crops. In order improve knowledge on diversity of this species, 145 lines B. representative nine populations all ecoregions Tunisia were characterized basis 18 morpho-phenologic features. The results show considerable variation between in traits studied. Variation was relatively higher reproductive than...
The estimation of levels genetic variation has received considerable attention because it is generally thought to be indicative overall species vitality and the potential for evolutionary responses environmental changes. Here, we use allozymes markers two distinct collections Cakile maritima , an annual from sandy coastal habitats (2000 generation 2005 collected 9 populations in their natural habitats), assess magnitude expected change. We compared diversity between generations (all...
Soil salinity is one of the most serious environmental factors affecting crop productivity around world. In this study, we analysed morpho-physiological variation in responses to salt stress Tunisian populations Hordeum marinum subsp. marinum. The plants were grown under two treatments (0 and 200 mm NaCl) until maturity. A total 19 quantitative traits measured before during harvest. It was observed that studied are influenced by increasing salinity. High moderate broad-sense heritability (H2...
Abstract Growth, activity of antioxidant enzymes viz. glutathione reductase (GR), superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and guaiacol (GPX), some metabolic processes related to ammonium metabolism were investigated in a salt‐tolerant Spatina alterniflora. In comparison 0 mM–NaCl treatment, growth S. alterniflora plant increased significantly at 200 mM NaCl, but was highly inhibited 500 NaCl. Ammonium concentration the leaves roots 2.1–3.4 times when plants...
Sea barely ( Hordeum marinum Huds.) is known as a salinity‐tolerant annual grass species. Its use in the rehabilitation of degraded arid and semiarid rangelands or crop plant improvement programs great interest. In this study, we investigated phenotypic variation within among 150 single‐seed descent families representing 10 Tunisian populations H. using eight quantitative traits. The experiment was conducted under greenhouse conditions. For each population, seeds from 15 mother plants were...
The progressive salinization of arable lands at a rate 3 ha min –1 worldwide is major concern for agricultural crop production. future improvement to resist or tolerate environmental stresses requires selecting halophytes that will produce high yield and profit. A halophyte, Sulla carnosa ( Hedysarum carnosum Desf.), collected from southern central Tunisia considered salt‐resistance species. group five populations represented by 150 genotypes (30 per population) were tested under greenhouse...
Sulla carnosa (Desf.) is a diploid (2 n = 16), allogamous, seed‐propagated species and has vegetative shoot system characterized by an orthotropic main stem bearing some lateral plageotropic shoots. It of interest for rangeland revegetation production. In this study, we analyzed the genetic diversity five S. populations using 15 quantitative traits nine random amplified polymorphic DNA primers. A total 14 41% variation was found among molecular phenotypic traits, respectively ( G st 0.14 Q...
Seeds of the medicinal plant Cakile maritima contain significant quantities oil rich in erucic acid. Irrigation with up to 500 mM NaCl had no adverse impact on plant growth and reproduction this promising species for domestication. Yet, almost half seed yield may be lost at harvest due fall fragile ripened siliculas. This is a major practical hurdle that would jeopardize field conditions. Here, we assessed whether seed-oil quality were affected by fruit maturity stage. Results showed content...
Abstract Hordeum marinum commonly known as sea barley is a salinity-tolerant species of grass. In the current study, 150 lines from ten populations H. ssp. collected five Tunisian bioclimatic sites were screened for polymorphism with 13 selected random amplified polymorphic DNA primers. Results exhibited high level (160 bands an average 12.46 per primer) and genetic diversity in all studied (on UHe = 0.247 I 0.358). High discrimination capacity was found primers combination three allowed...