scholarly journals TOXICIDAD DE LOS BIOPLAGUICIDAS AGAVE AMERICANA, FURCRAEA ANDINA (ASPARAGACEAE) Y SAPINDUS SAPONARIA (SAPINDACEAE) SOBRE EL CARACOL INVASOR MELANOIDES TUBERCULATA (THIARIDAE)

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
José Iannacone ◽  
María Isabel La Torre ◽  
Lorena Alvariño ◽  
Carla Cepeda ◽  
Hildebrando Ayala ◽  
...  
Keyword(s):  
Melanoides Tuberculata ◽  
Agave Americana ◽  
Sapindus Saponaria

Una de las familias de plantas más estudiadas para la búsqueda de nuevos agentes terapéuticos es la Asparagaceae, la cual comprende 2480 especies, Agave americana L., conocida como cabuya azul y Furcraea andina Trel. conocida como cabuya pertenecen a esta familia. Sapindus saponaria L. (Sapindaceae) conocida como boliche o choloque, es una planta arbórea de amplia distribución, en cuyos frutos se ha observado efectos larvicidas sobre garrapatas, actividad antimicrobiana, espermicida, fungicida y molusquicida. Melanoides tuberculata (Muller 1774) (Gastropoda: Thiaridae) es un caracol actualmente de distribución cosmopolita, con énfasis en el ámbito tropical y que presenta una alta importancia ecológica como invasora por su impacto sobre la diversidad de caracoles nativos, ya que desplaza y amenaza con desaparecer o por lo menos decrecer las poblaciones de moluscos nativos, debido a su alto potencial biótico, ser prolífica y a su tasa reproductiva alta. De esta forma, el objetivo de este trabajo fue evaluar la toxicidad aguda de las hojas de A. americana, F. andina y frutos de S. saponaria sobre M. tuberculata. El punto final de lectura fue la mortalidad del caracol M. tuberculataa 24 h de exposición, con recuperación en agua limpia a 24 h. Los valores de CL (Concentración letal media), NOEC (concentración de 50 efectos no observables) y LOEC (concentración más baja de efectos observables) presentaron la siguiente secuencia en orden de toxicidad decreciente: A. americana > F. andina > S. saponaria. El extracto acuoso de A. americana presentó los mejores efectos molusquicidas sobre M. tuberculata en comparación a las otras dos plantas empleadas.

Phytochemical profile and insecticidal activity of Agave americana leaf extract towards Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

2019 ◽  
Vol 26 (19) ◽  
pp. 19468-19480 ◽  
Author(s):  
Asma Mami Maazoun ◽  
Soumaya Haouel Hamdi ◽  
Feten Belhadj ◽  
Jouda Mediouni Ben Jemâa ◽  
Chokri Messaoud ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Leaf Extract ◽  
Sitophilus Oryzae ◽  
Agave Americana ◽  
Phytochemical Profile

scholarly journals Melanoides tuberculata (Mollusca: Thiaridae) as an intermediate host of Centrocestus formosanus (Trematoda: Heterophyidae) in Brazil

2010 ◽  
Vol 52 (4) ◽  
pp. 207-210 ◽  
Author(s):  
Hudson Alves Pinto ◽  
Alan Lane de Melo
Keyword(s):  
Intermediate Host ◽  
Experimental Infection ◽  
Mus Musculus ◽  
Poecilia Reticulata ◽  
Minas Gerais ◽  
First Report ◽  
Melanoides Tuberculata ◽  
Minas Gerais State ◽  
Small Intestines

Pleurolophocercous cercariae emerged from naturally infected Melanoides tuberculata from Minas Gerais State, Brazil, were used to perform experimental infection of laboratory-reared Poecilia reticulata. Mature metacercariae were obtained from the gills of fishes and force-fed to Mus musculus. The adult parasites which recovered from small intestines of mice were identified as Centrocestus formosanus. This is the first report of M. tuberculata as intermediate host of this heterophyid in Brazil.

Extracts of Agave americana inhibit aflatoxin production in Aspergillus parasiticus

2011 ◽  
Vol 4 (1) ◽  
pp. 37-42 ◽  
Author(s):  
A. Rosas-Taraco ◽  
E. Sanchez ◽  
S. García ◽  
N. Heredia ◽  
D. Bhatnagar
Keyword(s):  
Aspergillus Parasiticus ◽  
Public Awareness ◽  
Aflatoxin Production ◽  
Aflatoxin Contamination ◽  
Aqueous Extracts ◽  
Total Aflatoxin ◽  
Toxigenic Fungi ◽  
Agave Americana ◽  
Acid Accumulation ◽  
Norsolorinic Acid

Toxigenic fungi invade crops prior to harvest as well as during storage and produce harmful, even carcinogenic toxins such as aflatoxins. Since consumers demand safe commodities, and due to enhanced public awareness of the dangers of many synthetic fungicides, the importance of investigating alternative, natural products to control these toxigenic fungi is clear. This study investigated the effect of aqueous extracts of Agave americana on growth, conidia and aflatoxin production. Aspergillus parasiticus strains SRRC 148, SRRC 143 (Su-1), and A. parasiticus SRRC 162, a mutant (nor-) that accumulates norsolorinic acid (NOR, an orange-coloured intermediate of the aflatoxin pathway), were first inoculated into Adye and Mateles liquid medium, then plant extracts were added, and incubated at 28 °C for 7 days. Aflatoxin and norsolorinic acid were assayed by HPLC and spectrophotometry, respectively. While the extract of A. americana stimulated growth of the studied fungi, conidiogenesis, norsolorinic acid accumulation (in the nor- mutant), and aflatoxin production were significantly affected. The reduction was produced by the extracts at concentrations higher than 5-10 mg/ml, where all types of total aflatoxin analysed (aflatoxins B1, B2, G1 and G2) were reduced from 64% to >99% in the whole culture, and a reduction of 75% of norsolorinic acid. The results of the present work indicate that extracts of A. americana may be promising safe alternatives to harmful fungicides for controlling aflatoxin contamination.

scholarly journals Human Nails Permeation of an Antifungal Candidate Hydroalcoholic Extract from the Plant Sapindus saponaria L. Rich in Saponins

Molecules ◽  
2021 ◽  
Vol 26 (1) ◽  
pp. 236
Author(s):  
Vanessa Mendes ◽  
Flávia Franco Veiga ◽  
Lidiane Vizioli de Castro-Hoshino ◽  
Francielle Sato ◽  
Mauro Luciano Baesso ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Attenuated Total Reflection ◽  
Ionization Mass ◽  
Healthy Human ◽  
Hydroalcoholic Extract ◽  
Sapindus Saponaria ◽  
Infrared Spectrometer ◽  
Low Cytotoxicity ◽  
Human Nails

We evaluated a hydroalcoholic extract of Sapindus saponaria L. pericarps (ETHOSS), as a candidate to a topical antifungal medicine for onychomycosis. ETHOSS was produced by extracting the crushed fruits in ethanol. The saponin contents were identified and characterized by electrospray ionization mass spectrometry. We measured the in vitro antifungal activity against three dermatophyte fungi, isolated from onychomycosis: Trichophyton rubrum, T. mentagrophytes, and T. interdigitale, using broth microdilution tests. The minimum fungicide concentration of ETHOSS ranged from 195.31 to 781.25 μg/mL. The cytotoxicity of the crude extract was tested on the HeLa cell line, and its ability to permeate into healthy human nails by photoacoustic spectroscopy and Fourier transformation infrared spectrometer (FTIR) spectroscopy by attenuated total reflection. Besides its strong antifungal activity, ETHOSS showed low cytotoxicity in human cells. It was able to permeate and reach the full thickness of the nail in one hour, without the aid of facilitating vehicles, and remained there for at least 24 h. These results suggest that ETHOSS has great potential for treating onychomycosis.

scholarly journals Melanoides tuberculata as intermediate host of Centrocestus formosanus (Nishigori, 1924) in Tunisia

2014 ◽  
Vol 13 (27) ◽  
pp. 2774-2777 ◽  
Author(s):  
Najet Ghouaidia ◽  
Sabah Dhibi ◽  
Hayet Hammami
Keyword(s):  
Intermediate Host ◽  
Melanoides Tuberculata

scholarly journals Larvicidal potencial of Sapindus saponaria (Sapindaceae) against Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae)

2007 ◽  
Vol 59 (1) ◽  
pp. 145-149 ◽  
Author(s):  
F.F. Fernandes ◽  
R.N. Leles ◽  
I.G. Silva ◽  
E.P.S. Freitas
Keyword(s):  
Larvicidal Activity ◽  
Filter Paper ◽  
Control Measure ◽  
Larval Mortality ◽  
Rhipicephalus Sanguineus ◽  
Distilled Water ◽  
Alternative Control ◽  
Ethanolic Extracts ◽  
Sapindus Saponaria ◽  
Botanical Acaricide

The larvicidal potential of the crude ethanolic extracts (CEE) of the stem peel of Sapindus saponaria was evaluated against Rhipicephalus sanguineus. Lethal concentrations (LC), were calculated by preparing CEE solutions at different concentrations in distilled water. Larvae fasted for 14-21 days were utilized in the bioassays, after incubation of engorged females collected from infested environments frequented by dogs in several neighborhoods of Goiânia, GO. Bioassays were performed in a specially constructed biological chamber for testing botanical acaricides, acclimatized to 27±1ºC, RH>80%. The larvae were counted on filter paper envelopes impregnated with the solutions or distilled water and larval mortality observed after 48h. S. saponaria showed good larvicidal activity (LC50 and LC99 of 1994 and 3922ppm, respectively) and the results demonstrated its potential as a botanical acaricide and an alternative control measure for R. sanguineus.

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