Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonduc L. against Tuta absoluta (Lepidoptera: Gelechiidae).

Abstract:

Methanolic extracts of liana of Caesalpinia welwitschiana and leaves of C. bonduc were found to possess moderate antifeedant and ovicidal activities against Tuta absoluta. Bioassay-guided isolation of constituents from the most active fraction of C. welwitschiana led to the identification of four known compounds [isobonducellin 1a and bonducellin 1 b, intricatinol 2, (-)-epigallocatechin-3-O-gallate 4] and one new constituent [welwitschianic acid 3]. The most active fraction of C. bonduc afforded two known constituents neocaesalpin L 5 and neocaesalpin A 6. The isolated structures were elucidated on the basis of their MS, UV, IR and 1 & 2 D NMR spectra and by comparison with literature data. Compounds 2, 4-6 were showed antifeedant and ovicidal properties against T. absoluta, some comparable to that of azadirachtin at 50, 100 and 200 ng/µl. Overall, the present study, conclude that the two species of the plant could be a promising source of eco-friendly botanical constituents.
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APA

F.R., E (2024). Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonduc L. against Tuta absoluta (Lepidoptera: Gelechiidae).. Afribary. Retrieved from https://afribary.com/works/antifeedant-and-ovicidal-activities-of-a-new-cassane-and-other-compounds-from-caesalpinia-welwitschiana-oliv-and-caesalpinia-bonduc-l-against-tuta-absoluta-lepidoptera-gelechiidae-2

MLA 8th

F.R., Essoung "Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonduc L. against Tuta absoluta (Lepidoptera: Gelechiidae)." Afribary. Afribary, 10 Mar. 2024, https://afribary.com/works/antifeedant-and-ovicidal-activities-of-a-new-cassane-and-other-compounds-from-caesalpinia-welwitschiana-oliv-and-caesalpinia-bonduc-l-against-tuta-absoluta-lepidoptera-gelechiidae-2. Accessed 20 May. 2024.

MLA7

F.R., Essoung . "Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonduc L. against Tuta absoluta (Lepidoptera: Gelechiidae).". Afribary, Afribary, 10 Mar. 2024. Web. 20 May. 2024. < https://afribary.com/works/antifeedant-and-ovicidal-activities-of-a-new-cassane-and-other-compounds-from-caesalpinia-welwitschiana-oliv-and-caesalpinia-bonduc-l-against-tuta-absoluta-lepidoptera-gelechiidae-2 >.

Chicago

F.R., Essoung . "Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonduc L. against Tuta absoluta (Lepidoptera: Gelechiidae)." Afribary (2024). Accessed May 20, 2024. https://afribary.com/works/antifeedant-and-ovicidal-activities-of-a-new-cassane-and-other-compounds-from-caesalpinia-welwitschiana-oliv-and-caesalpinia-bonduc-l-against-tuta-absoluta-lepidoptera-gelechiidae-2