4-5-dihydropiperlonguminine and pellitorine

4-5-dihydropiperlonguminine has been researched along with pellitorine* in 2 studies

Other Studies

2 other study(ies) available for 4-5-dihydropiperlonguminine and pellitorine

Article	Year
Isobutyl amides--potent compounds for controlling Diatraea saccharalis. Pest management science, 2009, Volume: 65, Issue:1 A dichloromethane-methanol extract of the seeds of Piper tuberculatum Jacq. (Piperaceae) and two isobutyl amides, 4,5-dihydropiperlonguminine (1) and pellitorine (2), which were isolated by chromatographic methods, were assayed for their lethality against the sugarcane borer Diatraea saccharalis F. (Lepidoptera: Pyralidae).. Bioassays were carried out with fourth-instar caterpillars through topical application of test solutions to the dorsal surface of the prothorax, and dose-response correlations were determined. Significant insect mortalities were observed 24, 48 and 72 h after treatment at concentrations of >or= 100 microg insect(-1). The LD(50) and LD(90) values for compound 1 were 92.83 and 176.50 microg insect(-1), and for compound 2 they were 91.19 and 184.56 microg insect(-1).. According to the LD(50) and LD(90) for compounds 1 and 2, it can be inferred that the values reflect an acute lethal response to both compounds, based on interaction(s) of the toxicants with a primary target or series of targets. Thus, the amides were demonstrated to have potential value in the control of the sugarcane borer. Topics: Amides; Animals; Benzodioxoles; Dose-Response Relationship, Drug; Fatty Acids, Unsaturated; Insecticides; Larva; Lethal Dose 50; Molecular Structure; Moths; Plant Extracts; Polyunsaturated Alkamides; Seeds; Time Factors	2009
Toxicity of extracts and isobutyl amides from Piper tuberculatum: potent compounds with potential for the control of the velvetbean caterpillar, Anticarsia gemmatalis. Pest management science, 2007, Volume: 63, Issue:4 The isobutyl amides pellitorine (compound 1) and 4,5-dihydropiperlonguminine (compound 2) were extracted from the seeds of Piper tuberculatum Jacq. (Piperaceae) in yields of 6.10 and 4.45% respectively. The acute toxicities to the velvetbean caterpillar, Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae), of extracts of seeds, leaves and stems of P. tuberculatum, and of compounds 1 and 2, were evaluated by means of contact bioassays. The extracts caused 80% mortality when doses higher than 800.00 microg insect(-1) of extract of seeds, leaves and stems were administered to the velvetbean caterpillars. Compounds 1 and 2 showed 100% mortality at doses of 200 and 700 microg insect(-1) respectively. The LD(50) and LD(90) values were respectively 31.3 and 104.5 microg insect(-1) for compound 1, and 122.3 and 381.0 microg insect(-1) for compound 2. The potential value of extracts and amides derived from P. tuberculatum as efficient insecticides against velvetbean caterpillars is discussed. Topics: Amides; Animals; Benzodioxoles; Fatty Acids, Unsaturated; Insect Control; Insecticides; Moths; Piper; Plant Extracts; Polyunsaturated Alkamides; Seeds	2007

Article

Year

Isobutyl amides--potent compounds for controlling Diatraea saccharalis.

Pest management science, 2009, Volume: 65, Issue:1

A dichloromethane-methanol extract of the seeds of Piper tuberculatum Jacq. (Piperaceae) and two isobutyl amides, 4,5-dihydropiperlonguminine (1) and pellitorine (2), which were isolated by chromatographic methods, were assayed for their lethality against the sugarcane borer Diatraea saccharalis F. (Lepidoptera: Pyralidae).. Bioassays were carried out with fourth-instar caterpillars through topical application of test solutions to the dorsal surface of the prothorax, and dose-response correlations were determined. Significant insect mortalities were observed 24, 48 and 72 h after treatment at concentrations of >or= 100 microg insect(-1). The LD(50) and LD(90) values for compound 1 were 92.83 and 176.50 microg insect(-1), and for compound 2 they were 91.19 and 184.56 microg insect(-1).. According to the LD(50) and LD(90) for compounds 1 and 2, it can be inferred that the values reflect an acute lethal response to both compounds, based on interaction(s) of the toxicants with a primary target or series of targets. Thus, the amides were demonstrated to have potential value in the control of the sugarcane borer.

Topics: Amides; Animals; Benzodioxoles; Dose-Response Relationship, Drug; Fatty Acids, Unsaturated; Insecticides; Larva; Lethal Dose 50; Molecular Structure; Moths; Plant Extracts; Polyunsaturated Alkamides; Seeds; Time Factors

2009

Toxicity of extracts and isobutyl amides from Piper tuberculatum: potent compounds with potential for the control of the velvetbean caterpillar, Anticarsia gemmatalis.

Pest management science, 2007, Volume: 63, Issue:4

The isobutyl amides pellitorine (compound 1) and 4,5-dihydropiperlonguminine (compound 2) were extracted from the seeds of Piper tuberculatum Jacq. (Piperaceae) in yields of 6.10 and 4.45% respectively. The acute toxicities to the velvetbean caterpillar, Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae), of extracts of seeds, leaves and stems of P. tuberculatum, and of compounds 1 and 2, were evaluated by means of contact bioassays. The extracts caused 80% mortality when doses higher than 800.00 microg insect(-1) of extract of seeds, leaves and stems were administered to the velvetbean caterpillars. Compounds 1 and 2 showed 100% mortality at doses of 200 and 700 microg insect(-1) respectively. The LD(50) and LD(90) values were respectively 31.3 and 104.5 microg insect(-1) for compound 1, and 122.3 and 381.0 microg insect(-1) for compound 2. The potential value of extracts and amides derived from P. tuberculatum as efficient insecticides against velvetbean caterpillars is discussed.

Topics: Amides; Animals; Benzodioxoles; Fatty Acids, Unsaturated; Insect Control; Insecticides; Moths; Piper; Plant Extracts; Polyunsaturated Alkamides; Seeds

2007