Antimicrobial and insecticidal activities of cashew tree gum exudate

Abstract

SummaryThe gum exudate of the cashew tree (Anacardium occidentale) was shown to inhibit growth of some fungi and bacteria. The gum also prevented oviposition and reduced the number of surviving adults of the Bruchid Callosobruchus maculatus. The feeding of larvae of the Chrysomelid Crimissa cruralis was also strongly affected by the gum. These results suggest an active role for the gum in the defence mechanisms of the plant.

Antimicrobial and Antioxidant Activity of <i>Anacardium occidentale</i> L. Flowers in Comparison to Bark and Leaves Extracts

“…Studies have described the antimicrobial activity of different parts of A. occidentale, such as the fruits [3] [10]- [15], stem bark [16]- [25], leaves [16]- [29] and gum [30] [31], but there are no reports of similar activity in the flowers.…”

The effect of seed scarification and soil-media on germination, growth, storage, and survival of seedlings of five species of Prosopis L. (Mimosaceae)

“…In Prosopis, the increase in non-structural carbohydrates content should theoretically enhance the production of arabinogalactans exudates, common in this genus (Anderson & Farquhar, 1982), which are similar to those of another legume tree, Anacardium occidentale. In this species the exudates have been shown to inhibit growth of fungi and bacteria as part of a biochemical defense mechanism (Marques et al, 1992).…”

Characterization and in vitro antioxidant activity of Albizia stipulata Boiv. gum exudates

“…The IC 50 of the standard ascorbic acid was found to be 0.118 ± 0.002 mg/ml which was significantly higher (p < 0.05) than 0.895 ± 0.240 mg/ml obtained for the A. stipulata gum exudates. Phenolic compounds like flavonoids are known to possess a broad range of antioxidant activity and some plant gums such as cashew tree gum were reported to contain phenolic compounds which have also been associated with a defense mechanism of plants against pests and pathogens [35]. Therefore, the gum exudate was tested for the presence of phenolic component.…”