Results 141 to 150 of about 5,799,113 (160)

Toxocara canis: Larvicidal activity of fatty acid amides

Bioorganic & Medicinal Chemistry Letters, 2016
Considering the therapeutic potential of fatty acid amides, the present study aimed to evaluate their in vitro activity against Toxocara canis larvae and their cytotoxicity for the first time. Linoleylpyrrolidilamide was the most potent, with a minimal larvicidal concentration (MLC) of 0.05 mg/mL and 27% cytotoxicity against murine peritoneal ...
Taís, Mata-Santos, Caroline da Ros Montes, D'Oca, Hílton Antônio, Mata-Santos, Juliana, Fenalti, Nitza, Pinto, Tatiane, Coelho, Maria Elisabeth, Berne, Pedro Eduardo Almeida, da Silva, Marcelo Gonçalves Montes, D'Oca, Carlos James, Scaini   +9 more
openaire   +2 more sources

Solvatochromic behaviour and larvicidal activity of acridine-3-carboxylates

Journal of Photochemistry and Photobiology B: Biology, 2014
A new series of substituted ethyl 10-chloro-4-(3,4-dimethoxyphenyl)-2-hydroxy-12-phenyl-1,4,5,6-tetrahydrobenzo[a]acridine-3-carboxylates, 3a-e have been synthesized through NaOH base mediated cyclocondensation of (E)-7-chloro-2-(3,4-dimethoxybenzylidene)-9-phenyl-3,4-dihydroacridin-1(2H)-ones, 1a-e with ethyl acetoacetate.
A. Bharathi, Selvaraj Mohana Roopan, A. Abdul Rahuman, G. Rajakumar   +3 more
openaire   +2 more sources

Larvicidal activity of chimeric Bacillus thuringiensis protoxins

Molecular Microbiology, 1990
Summary Bacillus thuringiensis subspecies kurstaki (Btk) and subspecies berliner (Btb) both produce lepidopteran‐specific larvicidal protoxins with different activities against the same insect species. Toxic activity resides in the amino‐terminal half of both protoxins, whereas the carboxy‐terminal half of the molecules is not required for toxicity ...
K C, Raymond, T R, John, L A, Bulla
openaire   +2 more sources

Structure–activity relationship (SAR) modelling of mosquito larvicides

SAR and QSAR in Environmental Research, 2015
An attempt was made to derive structure-activity models allowing the prediction of the larvicidal activity of structurally diverse chemicals against mosquitoes. A database of 188 chemicals with their activity on Aedes aegypti larvae was constituted from analysis of original publications.
J, Devillers, A, Doucet-Panaye, J P, Doucet   +2 more
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Enzymatic activation of the Bacillus sphaericus mosquito larvicidal toxin

Journal of Invertebrate Pathology, 1987
Bacillus sphaericus insecticidal toxin was activated by trypsin, α-chymotrypsin, and mosquito gut homogenates to a form which was cytotoxic to cultured mosquito cells. Gut extracts from highly resistant Aedes aegypti larvae were as effective in activating this toxin as extracts from the highly sensitive species Culex quinquefasciatus.
E W, Davidson, A L, Bieber, M, Meyer, C, Shellabarger   +3 more
openaire   +2 more sources

The larvicidal activity of some 12,13-epoxytrichothec-9-enes

Biochemical Pharmacology, 1975
Abstract Seventeen naturally-occurring 12,13-epoxytrichothec-9-enes and 19 of their derivatives and transformation products have been tested for larvicidal activity against Aedes aegypti and the majority have been examined for toxicity to mammalian cells in tissue culture.
J F, Grove, M, Hosken
openaire   +2 more sources

Ovicidal, larvicidal and juvenilizing activity of a picolinephenoxyanilide againstCydia pomonella

Pest Management Science, 2000
N-(4-phenoxyphenyl)-2-pyridinecarboxamide (1) was synthesized from commercially available materials and its ovicidal and larvicidal activity against Cydia pomonella (L) was tested. The compound showed a LC 50 of 0.98 mg ml -1 when eggs less than 24h were sprayed using a Potter Tower, but it had no effect when eggs older than this were sprayed.
Ramon Canela, Mercè Balcells, Laura Dalmau, Jesús Avilla   +3 more
openaire   +1 more source

Ovo-Larvicidal Activity of Selected Insecticides, 1988

Insecticide and Acaricide Tests, 1989
Abstract A field evaluation was conducted at the Red River Research Station, Bossier City, La., to determine ovicidal activity and residual toxicity of selected insecticides and insecticide combinations against tobacco budworm on cotton. Plots were 4 rows by 30.5 m arranged in a randomized complete block with 4 replicates.
Stephen Micinski, K. T. Nguyen, B. R. Leonard, J. B. Graves   +3 more
openaire   +1 more source

Growth, sporulation and larvicidal activity of Bacillus sphaericus

European Journal of Applied Microbiology and Biotechnology, 1983
A new medium (MBS) for optimal sporulation of Bacillus sphaericus was defined. With the two main mosquito pathogenic strains grown in this medium, 1593-4 and 2297, highest cell and spore yields were obtained, concomitantly with an highest larvicidal activity against Culex pipiens.
A. Kalfon, I. Larget-Thi�ry, J.-F. Charles, H. Barjac   +3 more
openaire   +1 more source

Mosquito Larvicidal and Pupicidal Activity of Aminimides1

Journal of Medical Entomology, 1978
E. D. Clarke, A. W. A. Brown, J. J. Kabara   +2 more
openaire   +1 more source