Taxonomic Insights and Its Type Cyclization Correlation of Volatile Sesquiterpenes in Species and Potential Source Insecticidal Compounds: A Review.

Sesquiterpenes (SS) are secondary metabolites formed by the bonding of 3 isoprene (C5) units. They play an important role in the defense and signaling of plants to adapt to the environment, face stress, and communicate with the outside world, and their evolutionary history is closely related to their physiological functions. This review considers their presence and extensively summarizes the 156 sesquiterpenes identified in , emphasizing those with higher concentrations and frequency among species and correlating with the insecticidal activities and defensive responses reported in the literature.

Volatile Metabolomic Composition of Species: Chemodiversity Insights and Acaricidal Activity.

The genus (Lamiaceae) produces a plethora of metabolites that include ecdysteroids and terpenoids, some of which have demonstrated insect repellent properties. The volatile composition of several members of this genus has not been chemically defined, as many taxa are endemic to remote ecosystems. In this study, leaves were collected from the northeast of Brazil from , and plants and examined for their chemical profile via GC-MS/FID of essential oil extracts.