Details
| Original language | English |
|---|---|
| Pages (from-to) | 5681-5691 |
| Number of pages | 11 |
| Journal | Natural product research |
| Volume | 35 |
| Issue number | 24 |
| Early online date | 28 Sept 2020 |
| Publication status | Published - 2021 |
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.
Keywords
- Cassanes, flavonoides, Tuta absoluta, Antifeedant, Oviposition, Caesalpinia bonduc, Caesalpinia welwitschiana
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Agricultural and Biological Sciences(all)
- Plant Science
- Chemistry(all)
- Organic Chemistry
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In: Natural product research, Vol. 35, No. 24, 2021, p. 5681-5691.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Antifeedant and ovicidal activities of a new cassane and other compounds from Caesalpinia welwitschiana Oliv. and Caesalpinia bonducL. against Tuta absoluta (Lepidoptera: Gelechiidae)
AU - Essoung, Flaure Rosette Ehawa
AU - Mba'ning, Brice Mitterant
AU - Tcho, Alain Tadjong
AU - Chhabra, Sumesh Chander
AU - Mohamed, Samira Abuelgasim
AU - Lenta, Bruno Ndjakou
AU - Ngouela, Silvere Augustin
AU - Tsamo, Etienne
AU - Hassanali, Ahmed
AU - Cox, Russell John
N1 - Funding Information: We gratefully acknowledge the financial support of the German Academic Exchange Service In-Region scholarship for funding FREE. SAM thanks the Federal Ministry of Cooperation and Development (BMZ), Germany for providing the financial support through ICIPE Tuta absoluta IPM project (N?: 12.1433.7-001.00). RJC acknowledges the DFG for funding for LCMS instrumentation (INST 187/621-1).
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Cassanes
KW - flavonoides
KW - Tuta absoluta
KW - Antifeedant
KW - Oviposition
KW - Caesalpinia bonduc
KW - Caesalpinia welwitschiana
UR - http://www.scopus.com/inward/record.url?scp=85091605801&partnerID=8YFLogxK
U2 - 10.1080/14786419.2020.1825424
DO - 10.1080/14786419.2020.1825424
M3 - Article
VL - 35
SP - 5681
EP - 5691
JO - Natural product research
JF - Natural product research
SN - 1478-6419
IS - 24
ER -