Taoufik Bettaieb

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This paper presents an efficient protocol for rapid in vitro propagation of Stevia rebaudiana (Bert.) by nodal explants collected from mature plants placed on MS medium containing 1.0 mg l 6-benzylamino purine (BAP) or indole-3-butyric acid (IBA) either alone or in combination (1 mg l BAP with 0.5 mg l IBA) for shoot bud initiation. In order to induce(More)
Stevia rebaudiana is an important agricultural crop for the production of a high-potency natural sweetener, sensitive to low temperature during the developmental stage. Stimulation of chilling stress with a pre-treatment with endogenous signalling components and in particular with salicylic acid (SA), hydrogen peroxide (H2O2), 6-benzylaminopurine (BAP) and(More)
Coriander (Coriandrum sativum L.), a member of the Apiaceae family, is among most widely used medicinal plant, possessing nutritional as well as medicinal properties. Thus, the aim of this updated review is to highlight the importance of coriander as a potential source of bioactive constituents and to summarize their biological activities as well as their(More)
The potential of kenaf (Hibiscus cannabinus L.) and corn (Zea mays L.) for accumulation of cadmium and zinc was investigated. Plants have been grown in lysimetres containing dredging sludge, a substratum naturally rich in trace metals. Biomass production was determined. Sludge and water percolating from lysimeters were analyzed by atomic absorption(More)
Potato (Solanum tuberosum L.) tubers undergo a period of dormancy, during which visible bud growth is inhibited. The length of the dormancy is determined by environmental, physiological and hormonal control mechanisms. Dormancy is the final stage of tuber life, which serves to preserve tubers as organs of vegetative reproduction under unfavourable growth(More)
Potato (Solanum tuberosum L.) microtubers or field-grown tubers have a dormant apical bud (also called tuber dormancy). They do not readily sprout even if environmental conditions are favorable, including optimum temperature and humidity. The objective of this study was to evaluate the involvement of hydrogen peroxide (by direct or indirect application of(More)
The effects of fertilization and the nature of the inoculum as well as the variation of the dose intake of the latter on the level of Jacaranda mimosifolia D.Don mycorhization were tested. Young plants were treated with two inoculums presenting different origins, compositions and modes of application: one is a commercial product containing Glomus(More)
The response of kenaf (Hibiscus cannabinus L.) to Zn/Cd contamination in soil was investigated using pot experiment. Plants were grown on soils containing increasing doses of two metals. Zn and Cd were applied alone or combined. Growth parameters as well as content of photosynthetic pigments, and photosynthetic performance were determined. Soil and plant(More)
La production totale des agrumes en Tunisie a atteint 330 000 t en 2013. La « Maltaise », variété la plus représentante des oranges produites, a atteint 130 000 t en 2013, soit 15 % de la production totale. C’est la seule variété exportée dans notre pays en raison de sa haute qualité sensorielle et exceptionnelle. Le fruit et les feuilles sont les plus(More)
Stevia rebaudiana Bert. est une semi-ligneuse appartenant à la famille des Astéracées. La plante est originaire du Paraguay. Ses feuilles produisent des édulcorants naturels (glycosides de stéviol), non nutritifs et non toxiques, mais à très fort pouvoir édulcorant, susceptibles de remplacer le sucre et d’autres édulcorants artificiels. Outre cette(More)