in the present work, the bioassay screening of the essential oil and various extracts of two plants including fruits of heracleum persicum desf. and rhizomes of zingiber officinale rosc. have been studied with brine shrimp test. there is only one report about cytotoxicity of h. sphondylium in literature and so h. persicum has been used as second selection. at first essentials oil and various ex...

Endemic Artemia franciscana populations can be found throughout the American continent and also as an introduced specie in several country all over the world, such as in the Mediterranean region where Artemia franciscana was identified as an invasive specie replacing native Artemia parthenogenetica and Artemia salina. In the present study, the characterization of the new invasive Artemia franci...

Avermectin inhibits Mucor miehei and Artemia salina chitin synthesis and to a degree DNA synthesis in the former. The antibiotic interferes with chitin turnover in brine shrimp and inhibits Streptomyces antibioticus chitinase activity in vitro. In light of the proposed mode of action of avermectin and the anomolies in the literature, it is proposed that avermectin can kill susceptible organisms...

Hexane, ethanol and aqueous extracts and fractions from leaves of Pouteria torta (Mart.) Radlk (Sapotaceae), a perennial tree, widespread in the Brazilian Cerrado, were tested for cytotoxicity with the Artemia salina toxicity model. Only the aqueous crude extract and the MeCN: CHCl3 fraction of the ethanol extract presented toxicity (0.28 mg/mL and 0.27mg/mL, respectively). Lupeol acetate was i...

Cinnamomum species have long been used as spices. The preliminary bioactive constituent’s identification and brine shrimp lethality activities of ethanolic extracts of seven Cinnamomum species viz., C. travancoricum, C. walaiwarense, C. wightii, C. verum, C. sulphuratum, C. riparium, and C. perrottetii were evaluated in this study. The results of cytotoxic activity of the bark extracts of seven...

El objetivo del estudio fue describir la alimentación exógena larvaria y supervivencia de Orestias luteus (Valenciennes, 1846) en condiciones controladas. se realizó el laboratorio cultivo prototipo Fundación Titicaca Perú (FUNTI-PERU) ciudad Puno (Perú). Se utilizó como material biológico, 896 unidades larvas O. donde distribuyó tres tratamientos con repeticiones: 1ro) T1 = 299 unidades, 2do) ...

Sterols, triterpenes, volatiles, polar and other constituents in aerial parts of Carthamus lanatus were analyzed by gas chromatography-mass spectrometry. Over 90 compounds were identified most of them new for the species. Sitosterol and stigmasterol were the most abundant of 10 sterols identified in the sterol fraction. Taraxasterol, alpha- and beta-amyrine prevailed in the triterpene fraction....

The two investigated algae had almost identical sterol composition, but there were significant differences in the composition of the polar components and especially in the composition of the volatiles. P. denudata f. fragilis extracts possessed a stronger biological activity (antibacterial, antifungal and toxicity against Artemia salina). Despite the minute morphological differences between the...

Artemia brine shrimps inhabit hypersaline ecosystems all over the world except Antarctica. In South America two bisexual diploid species are encountered: Artemia franciscana Kellogg distributed along America and Artemia persimilis Piccinelli and Prosdocimi restricted to Argentina and a few Chilean localities. A. franciscana was recently cited for the first time in our country and our results su...