Afef Ladhari

TL;DR: Results showed that siliquae methanol extract caused the greatest negative effect on lettuce germination and growth, and the most inhibitory compound on lettuce seedling growth was elucidated as 11-α-acetylbrachy-carpone-22(23)-ene.

TL;DR: The results suggest the presence of anti-feeding and/or toxic substances in the extracts that may be useful in developing bio-insecticides based on C. arabica extracts for use in integrated pest management of leafworm and other agricultural pests.

TL;DR: The lettuce seedlings have circumvented the allelochemicals stress, by increasing the phenylalanine ammonia-lyase (PAL) and tyrosineamines (TAL) activity, accumulation of proline and the production of secondary metabolites with antioxidant potent, such as polyphenols, flavonoids and alkaloids.

TL;DR: Aqueous (10, 20, 30 and 40 g/L) and organic (hexane, chloroform and methanol, at 3000 and 6000 ppm) extracts of Inula crithmoides L. (roots, stems, leaves and flowers) were evaluated for their allelopathic activities on radish, lettuce, peganum and thistle as discussed by the authors.

TL;DR: The results stated that all fig extracts displayed significant phytotoxic impact, and the degree of inhibition was appeared to be dependent on the cultivars and target species, and in general, leaf extracts were more toxic and significantly influenced the seedling elongations, as compared to twig extracts.