title: Dietary effects of harmine, a β-carboline alkaloid, on development, energy reserves and α-amylase activity of Plodia interpunctella Hübner (Lepidoptera: Pyralidae).
abstract: The physiological and developmental effects of harmine, a β-carboline alkaloid, on the insect pest Plodia interpunctella have been analyzed. When added at the larval diet, harmine induced a strong reduction of larvae weight, cannibalism between larvae, in addition to significant mortality. On the other hand, it caused a remarkable development disruption, manifested by both delay and reduction of pupation and adult emergence. Using spectrophotometric assays, we have shown that harmine ingestion provoked a severe reduction in protein, glycogen and lipid contents. Beside, when larvae fed harmine, the activity of the digestive enzyme α-amylase was strongly reduced. In conclusion, our experiments clearly show the susceptibility of P. interpunctella to harmine ingestion revealing the potent bioinsecticidal effect of harmine.
authors: Centre des Etudes Environnementales Méditerranéennes, Université Abdelmalek Essaadi, Faculté des Sciences et Techniques, BP: 416, Tangier, Morocco.
authors: Noureddin
authors: N
authors: Bouayad
authors: Kacem
authors: K
authors: Rharrabe
authors: Mostafa
authors: M
authors: Lamhamdi
authors: Naima Ghailani
authors: NG
authors: Nourouti
authors: Fouad
authors: F
authors: Sayah
keywords: Energy reserves; Harmine; Plodia interpunctella; Toxicity; α-Amylase
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