Phytochemical and Biological Study of Trophic Interaction between Pseudosphinx Tetrio L. Larvae and Allamanda Cathartica L

• Published in: Plants (Basel) Vol. 12; no. 3; p. 520
• Main Authors: Matignon, Linda, Lo, Mame Marietou, Monpierre, Magneric, Correia, Mauro Vicentini, Valencia, Drochss Pettry, Palmeira-Mello, Marcos V, Sylvestre, Marie-Noëlle, Pruneau, Ludovic, Sylvestre, Muriel, Domenech, Antonio, Benfodda, Zohra, Meffre, Patrick, Cebrián-Torrejón, Gerardo
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 23.01.2023; MDPI
• Subjects: allelopathy; Animal biology; Antimicrobial activity; aposematism; Botanics; Carbohydrates; Caterpillars; chemical ecology; Ecological effects; Ecology, environment; Eggs; electrochemical ecology; Electrochemistry; Flavonoids; Flowers & plants; Fungicides; Herbivores; Hypotheses; Insects; Invertebrate Zoology; Larvae; Leaves; Life Sciences; Mathematical analysis; Metabolites; Multivariate analysis; Natural products; NMR; Nuclear magnetic resonance; Phytochemicals; plant–insect interactions; Polyphenols; Pseudosphinx tetrio; Symbiosis; Trophic relationships; Vegetal Biology; allelopathy; phytochemical analysis; Allamanda cathartica; chemical ecology; Pseudosphinx tetrio; electrochemical ecology; aposematism; plant–insect interactions
• ISSN: 2223-7747; 2223-7747
• DOI: 10.3390/plants12030520

In this article, we propose to explore the chemical interaction between L. and L. using different analytical methods, including an innovative electrochemical approach (called electrochemical ecology) and multivariate analysis, and we investigate the potential antimicrobial effects (antibacterial and antifungal activities) of this interaction in order to gain a better understanding of their specific interaction. The analytical study presents a similar chemical profile between the leaves of healthy and herbivorous and the excretions of the caterpillars. The similar analytical profile of the leaves of and the excretions of , and the difference with the caterpillar bodies, suggests a selective excretion of compounds by the caterpillar. The measured antimicrobial activities support the physicochemical tests. The natural products found selectively in the excretions (rather than in the body) could explain the ability of to feed on this toxic Apocynaceae species.