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Duguetia lanceolata A. St.-Hil. Stem bark produces phenylpropanoids lethal to Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae)
被引:7
|作者:
Alves, Dejane S.
[1
]
Costa, Vivian A.
[2
]
Machado, Alan R. T.
[3
]
Oliveira, Denilson F.
[2
]
Carvalho, Geraldo A.
[1
]
机构:
[1] Univ Fed Lavras, Dept Entomol, BR-37200000 Lavras, MG, Brazil
[2] Univ Fed Lavras, Dept Chem, BR-37200000 Lavras, MG, Brazil
[3] Univ Estado Minas Gerais, Dept Exact Sci, BR-35930314 Joao Monlevade, MG, Brazil
来源:
关键词:
1,2,4-Trimethoxy-5-vinylbenzene;
1,2,4-Trimethoxy-5-[(E)-prop-1-enyl]benzene;
Natural products;
Botanical insecticide;
ALPHA-ASARONE DERIVATIVES;
BETA-ASARONE;
BOTANICAL INSECTICIDES;
DETERRENT ACTIVITY;
ACORUS-CALAMUS;
BT CROPS;
ANNONACEAE;
PLANTS;
RESISTANCE;
INHIBITOR;
D O I:
10.1016/j.cropro.2019.104965
中图分类号:
S3 [农学(农艺学)];
学科分类号:
0901 ;
摘要:
The fall armyworm Spodoptera frugiperda (JE Smith) is a polyphagous insect that causes losses to farmers in the world. This work was aimed isolating and identifying the active substances produced by Duguetia lanceolata A. St. Hil for S. frugiperda. The dichloromethane soluble fraction from D. lanceolata stem bark, incorporated into an artificial diet for S. frugiperda, showed high insecticidal activity against this insect (LC50 = 295 mu g mL(-1) of diet). Its fractionation yielded two aporphine alkaloids and a mixture of trans-asarone and 2,4,5-trimethoxystyrene, which was active against S. frugiperda (LC50 = 124 mu g mL(-1) of diet). Both trans-asarone and 2,4,5-trimethoxystyrene were individually active against the insect, with the latter substance being more active (LT50 = 73 h) than the former (LT50 = 170 h). In conclusion, trans-asarone and 2,4,5-trimethoxystyrene are the substances produced by D. lanceolata that are active against S. frugiperda.
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页数:9
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