Ambrosia artemisiifolia as a potential resource for management of golden apple snails, Pomacea canaliculata (Lamarck)

El-Sayed

Fayoum Journal of Agricultural Research and Development

et al. 2020

The molluscicidal and antifeedant activity of three weeds extracts namely primpernel (Anagallis arvensis L.) (Primulaceae), nightshade (Solanum nigrum L.) (Solanaceae) and nutsedge (Cyperus longus L.) (Cyperaceae) were evaluated against the adult stage of Monacha obstructa (Pfeiffer, 1842) under laboratory conditions. Three methods of bioassay were used i.e. bait, residual film (contact) and antifeeding techniques. The results indicated that chloroform and hexane extracts of primpernel appeared highly toxic when applied as baits on M. obstructa adults while nutsedge was found to be lower toxicity based on LC 50 values. Also, chloroform extract of nightshade and hexane extract of primpernel were the most potent with contact whereas nutsedge was the least effective. On the other hand, of either chloroform or hexane extract primpernel tended to be more effective as antifeedant compound than nightshade. In contrast, nutsedge chloroform extract revealed no action as a feeding deterrent whereas the same hexane extract was effective based on SC 50 levels. Moreover, fifteen compounds were identified by GC/MS analysis in the chloroform extract of primpernel. Palmatic acid methyl ester (fatty acid) was the dominant compound representing 25.8% followed by aromadendrene (sesquiterpene) forming 15.2% and 2tertbutyl -4-isopropyl -5-methylphenol (phenolic compound) having 13.9%. In addition to the presence of two steroids, two dicarboxylic acids and only one ketone compound was identified. Finally, the salt of carbamic acid (ammonium carbamate) and the ester of phosphoric acid (tributyl phosphate) were also detected. This study reveals that chemical compounds present in chloroform extract of primpernel has effective source as a molluscicide extracted of plant origin and has potential beneficial control against M. obstructa snails.

Section:  Weed Extracts As Contact Poisonsmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 68%

Molluscicidal and Antifeedant Impacts of Some Weed Extracts on the Land Snail Monacha Obstructa (Pfeiffer)

El-Sayed

Fayoum Journal of Agricultural Research and Development

et al. 2020

Chemistry & Biodiversity

“…The cardiac glycosides fraction from Nerium indicum leaves had a 48‐h LC 50 of 20.12 μg/mL [124] . The methanol extract of Ambrosia artemisiifolia showed a 24‐h LC 50 of 194 μg/mL, with the sesquiterpene lactones psilostachyin (LC 50 =15.9 μg/mL) and psilostachyhin B (LC 50 =27.0 μg/mL) as the active constituents [125] . The methanol extract of leaves and twigs of Aglaia duperreana showed molluscicidal activity against P. canaliculata with a 72‐h LC 50 of 33.4 μg/mL [126] .…”

Section: Resultsmentioning

confidence: 99%

“…Molluscicidal activity of essential oils and pure compounds were evaluated according to the protocol of Ding and co‐workers [125] with slight modifications. For each assay, 150 mL of water containing 20 snails were placed into 250‐mL beakers and aliquots of the essential oils dissolved in EtOH (1 % stock solution) were then added.…”

Section: Methodsmentioning

confidence: 99%

Lantana camara Essential Oils from Vietnam: Chemical Composition, Molluscicidal, and Mosquito Larvicidal Activity

Hùng

Đài

Satyal

et al. 2021

Lantana camara is a troublesome invasive plant introduced to many tropical regions, including Southeast Asia. However, the plant does hold promise as a source of essential oils that may be explored for potential use. Fresh water snails such as Pomacea canaliculata, Gyraulus convexiusculus, and Tarebia granifera can be problematic agricultural pests as well as hosts for parasitic worms. Aedes and Culex mosquitoes are notorious vectors of numerous viral pathogens. Control of these vectors is of utmost importance. In this work, the essential oil compositions, molluscicidal, and mosquito larvicidal activities of four collections of L. camara from north‐central Vietnam have been investigated. The sesquiterpene‐rich L. camara essential oils showed wide variation in their compositions, not only compared to essential oils from other geographical locations (at least six possible chemotypes), but also between the four samples from Vietnam. L. camara essential oils showed molluscicidal activities comparable to the positive control, tea saponin, as well as other botanical agents. The median lethal concentrations (LC50) against the snails were 23.6–40.2 μg/mL (P. canaliculata), 7.9–29.6 μg/mL (G. convexiusculus), and 15.0–29.6 μg/mL (T. granifera). The essential oils showed good mosquito larvicidal activities with 24‐h LC50 values of 15.1–29.0 μg/mL, 26.4–53.8 μg/mL, and 20.8–59.3 μg/mL against Ae. aegypti, Ae. albopictus, and Cx. quinquefasciatus, respectively. The essential oils were more toxic to snails and mosquito larvae than they were to the non‐target water bug, Diplonychus rusticus (24‐h LC50=103.7–162.5 μg/mL). Sesquiterpene components of the essential oils may be acting as acetylcholinesterase (AChE) inhibitors. These results suggest that the invasive plant, L. camara, may be a renewable botanical pesticidal agent.

Chemistry & Biodiversity

“…Previous phytochemical studies on this plant reported several sesquiterpene lactones, triterpenes, polyamines, flavonoids and their derivatives, some of which are reported to have beneficial effects, such as molluscicidal, insecticidal, anti-inflammatory, antithrombin, and neuroprotective activities. [3][4][5] In recent years, the secondary metabolites in pollen and their potential role have received much attention. [6,7] As part of ongoing phytochemical research, we studied the inflorescence of A. artemisiifolia distributed in the Guangxi province of China.…”

Section: Introductionmentioning

confidence: 99%

A New Lignan and C(6)‐Oxygenated Flavonoids from the Inflorescence of Ambrosia artemisiifolia

Zeng

Cheng

Lai

et al. 2022

A new lignan (4,4',5'-trihydroxy-5,3'-dimethoxy-3-O-9',2-(7'R)-lignan, 1) and eight C(6)-oxygenated flavonoids (2 -9), including a newly identified flavonoid (7,3',4'-trihydroxy-3,5,6-trimethoxyflavone, 2), were isolated from the inflorescence of Ambrosia artemisiifolia L. The structures of these isolates were determined using extensive spectroscopic analyses and comparison with data previously reported in the literature. The absolute configuration of compound 1 was established using electronic circular dichroism (ECD) spectrum. All the flavonoids (2 -9) showed inhibitory effects on LPS-induced NO production in RAW264.7 cells, with the inhibition rate ranging from 24.51 % to 69.82 % at 50 μM. The in vitro cytotoxicity study showed that compounds 3-8 have a 60 % inhibition rate against SMMC-7721 at a concentration of 40 μM, while compounds 5 and 8 also exhibited inhibitory activity against HL-60 at 40 μM with the inhibition rate of 83.36 % and 52.01 %, respectively.