Publications by authors named "H Rchid"

Introduction: the prevalence of Helicobacter pylori (H. pylori) infection in children is very high in Morocco. Eradication rates of H.

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Alginates extracted from two Moroccan brown seaweeds and their derivatives were investigated for their ability to induce phenolic metabolism in the roots and leaves of tomato seedlings. Sodium alginates (ALSM and ALCM) were extracted from the brown seaweeds and , respectively. Low-molecular-weight alginates (OASM and OACM) were obtained after radical hydrolysis of the native alginates.

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Article Synopsis
  • Fucoidans extracted from Moroccan brown seaweed (BBF and FSF) were purified and characterized, showing high sulfate content (45.49% and 49.53% respectively).
  • Analysis revealed that FF and BBF were primarily composed of fucose (64% and 91%) and galactose (20% and 6%), with trace amounts of other sugars.
  • The study demonstrated that these fucoidans effectively stimulate the natural defenses of date palms, as indicated by increased phenylalanine ammonia-lyase activity and phenol/lignin levels, suggesting potential for biological control against date palm diseases.
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Polysaccharides extracted from marine algae have attracted much attention due to their biotechnological applications, including therapeutics, cosmetics, and mainly in agriculture and horticulture as biostimulants, biofertilizers, and stimulators of the natural defenses of plants. This study aimed to evaluate the ability of alginate isolated from from the Moroccan coast and oligoalginates derivatives to stimulate the natural defenses of tomato seedlings. Elicitation was carried out by the internodal injection of bioelicitor solutions.

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Nigella sativa L. 'Black cumin' (Ranunculaceae) is one of the plants commonly used in Moroccan folk medicine for treatment of various ailments including diabetes mellitus. The present study was undertaken to investigate the effect of different N.

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