Insecticidal Constituents and Activity of Alkaloids from Cynanchum mongolicum
Abstract
:1. Introduction
2. Results
2.1. Alkaloid Identification
2.2. Acute Lethal Toxicity of Different Alkaloids against Wingless Adult Lipaphis erysimi Aphids
Alkaloids | Slope (SE) | LC50 (mg/L) | 95% Confidence Interval (mg/L) | Chi-Square Value | Correlation Coefficient |
---|---|---|---|---|---|
I | 5.22 (0.93) | 292.48 | 281.32~313.83 | 12.54 | 0.96 |
II | 7.67 (0.31) | 367.21 | 307.21~421.30 | 14.37 | 0.92 |
III | 8.26 (0.71) | 487.79 | 439.11~538.91 | 12.51 | 0.98 |
Total alkaloids | 3.86 (0.17) | 163.52 | 102.66~231.52 | 8.93 | 0.96 |
Imidacloprid | 0.37 (0.12) | 8.087 | 0~33.51 | 4.16 | 0.89 |
2.3. Development Disruption
2.4. Molting Hormone Titers of Treated Larvae or Prepuae
2.5. Standard Curve of 20-Hydroxyecdysone.
3. Discussion
4. Experimental Section
4.1. General Information
4.2. Plant Materials
4.3. Insects
4.4. Alkaloid Extraction, Preparation and Identification
4.5. Acute Lethal Toxicity Test
4.6. Development Disruption Tests
4.7. Estimation of Molting Hormone Titers
4.8. Standard Curve of 20-Hydroxyecdysone Concentration
4.9. Statistical Analyses
5. Conclusions
Supplementary Materials
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Ge, Y.; Liu, P.; Yang, R.; Zhang, L.; Chen, H.; Camara, I.; Liu, Y.; Shi, W. Insecticidal Constituents and Activity of Alkaloids from Cynanchum mongolicum. Molecules 2015, 20, 17483-17492. https://doi.org/10.3390/molecules200917483
Ge Y, Liu P, Yang R, Zhang L, Chen H, Camara I, Liu Y, Shi W. Insecticidal Constituents and Activity of Alkaloids from Cynanchum mongolicum. Molecules. 2015; 20(9):17483-17492. https://doi.org/10.3390/molecules200917483
Chicago/Turabian StyleGe, Yang, Pingping Liu, Rui Yang, Liu Zhang, Hongxing Chen, Ibrahima Camara, Yiqing Liu, and Wangpeng Shi. 2015. "Insecticidal Constituents and Activity of Alkaloids from Cynanchum mongolicum" Molecules 20, no. 9: 17483-17492. https://doi.org/10.3390/molecules200917483