Insecticidal activity ofGallesia integrifolia (Phytolaccaceae) essential oil

Abstract

This study evaluated the insecticidal activity of Gallesia integrifoliaessential oil from fruits, leaves, and flowers against Aedes aegyptilarvae and pupae. The essential oil was obtained by hydrodistillation and characterized by gas chromatography-mass spectrometry. Sulfur compounds represented 95 to 99% of the essential oil from fruits, leaves, and flowers. Essential oil major compounds were 2,8-dithianonane (52.6%) in fruits, 3,5-dithiahexanol-5,5-dioxide (38.9%) in leaves, and methionine ethyl ester (45.3%) in flowers. The essential oils showed high activity against larvae, and low for pupae withLC99.9of 5.87 and 1476.67μg/mL from fruits; 0.0096 and 348.33 μg/mL from leaves and 0.021and 342.84 μg/mL from flowers, respectively. The main compound with insecticide activity is probably n-ethyl-1,3-dithioisoindole, from isoindole organothiophosphate class, found in greater amount in flower and leaf essential oil. The great insecticide activity of G. integrifoliaessential oil suggests that this product is a natural insecticide.

Cellular Antioxidant, Anti-Inflammatory, and Antiproliferative Activities from the Flowers, Leaves and Fruits of Gallesia integrifolia Spreng Harms

“…The parameters of yield and rotational power are directly related to abiotic factors, being influenced by seasonality. This difference can be observed when comparing the data from the present study with the yields obtained by Raimundo et al [14] for flowers (0.19%), leaves (0.056%), and fruits (0.14%). Furthermore, a difference was also observed in the EO yield of the fruits (0.05%) found by Bortolucci et al [10].…”

“…The chemical composition of essential oils ( Table 2 and Figure 1 ) differed from those analyzed by Raimundo et al [ 11 , 12 , 14 ] and Bortolucci et al [ 10 ], who also investigated the essential oils of the flowers, leaves, and fruits of the same tree specimens used in this study. Differences may result from phenological changes and regional rainfall patterns observed over seven years of studies with this species.…”

“…Studies conducted with essential oils and extracts from this species indicate anti-inflammatory, antiproliferative and antitumor [ 10 ], antifungal [ 8 , 11 ], acaricidal and larvicidal potential against Rhipicephalus microplus [ 12 , 13 ], larvicidal against Aedes aegypt [ 14 ], antiviral [ 15 ], antimycobacterial [ 9 ], and antiulcer [ 16 ] properties.…”

“…In fruits, the main compounds were 2,3,5-trithiahexane, 3,6-dithiaoctan-1,8-diol, methanethiol, 2,8-dithianonane, dimethyl disulfide, and lenthionine [ 12 ]. The flowers have methionine ethyl ester, and the leaves have 3,5-dithiahexanol-5,5-dioxide [ 14 ]. Extracts prepared with the inner part of the stem bark have phenolic compounds such as gallic acid, rutin, and morin [ 17 ].…”

INFLUÊNCIA DE FATORES ABIÓTICOS NO RENDIMENTO DO ÓLEO ESSENCIAL DA Gallesia integrifolia (SPRENG.) HARMS

“…A G. integrifolia é reconhecida como sendo de grande importância para área medicinal como antiinflamatória e capacidade antimicrobiana (ARUNACHALAM et al, 2016;BORTOLUCCI et al, 2021), além disso apresenta atividade contra larvas do Aedes aegypti e carrapato bovino (DIAS et al, 2018;RAIMUNDO et al, 2021). O OE dos frutos de G. integrifolia tem alta atividade fungicida conforme os resultados publicados por Raimundo et al (2018) podendo servir como aplicações futuras na redução do uso de fungicidas sintéticos.…”