Larvicidal activity of Cnidium monnieri fruit coumarins and structurally related compounds against insecticide-susceptible and insecticide-resistant Culex pipiens pallens and Aedes aegypti

2012 ◽  
Vol 68 (7) ◽  
pp. 1041-1047 ◽  
Author(s):  
Zhangqian Wang ◽  
Jun-Ran Kim ◽  
Mo Wang ◽  
Shaohua Shu ◽  
Young-Joon Ahn
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Culex Pipiens ◽  
Culex Pipiens Pallens ◽  
Related Compounds ◽  
Pipiens Pallens

scholarly journals Cloning and Expression of Two Crystal Protein Genes, cry30Ba1 and cry44Aa1, Obtained from a Highly Mosquitocidal Strain, Bacillus thuringiensis subsp. entomocidus INA288

2006 ◽  
Vol 72 (8) ◽  
pp. 5673-5676 ◽  
Author(s):  
Takeshi Ito ◽  
Tomonori Ikeya ◽  
Ken Sahara ◽  
Hisanori Bando ◽  
Shin-ichiro Asano
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Aegypti ◽  
Culex Pipiens ◽  
Crystal Protein ◽  
Cloning And Expression ◽  
Culex Pipiens Pallens ◽  
Bacillus Thuringiensis Subsp ◽  
Pipiens Pallens ◽  
Crystal Protein Genes

ABSTRACT Two novel crystal protein genes, cry30Ba and cry44Aa, were cloned from Bacillus thuringiensis subsp. entomocidus INA288 and expressed in an acrystalliferous strain. Cry44Aa crystals were highly toxic to second-instar Culex pipiens pallens (50% mortality concentration [LC50] = 6 ng/ml) and Aedes aegypti (LC50 = 12 ng/ml); however, Cry30Ba crystals were not toxic.

scholarly journals Synthesis and Larvicidal Activity of Phrymarolin Derivatives against Culex Pipiens Pallens

2016 ◽  
Vol 11 (2) ◽  
pp. 1934578X1601100
Author(s):  
Fangfang Tan ◽  
Shaojun Zheng ◽  
Peng Gao ◽  
Shengkun Li ◽  
Zhaonong Hu ◽  
...  
Keyword(s):  
Larvicidal Activity ◽  
Culex Pipiens ◽  
Culex Pipiens Pallens ◽  
H Nmr ◽  
Data Analyses ◽  
Larvicidal Activities ◽  
Derivatives Of ◽  
Pipiens Pallens ◽  
C Nmr

Twenty-eight new phrymarolin derivatives, including twenty-one ethers, six esters and a dehydroxy phrymarolin, were prepared from phrymarolin I and the structures of all the derivatives were confirmed by 1H NMR and 13C NMR spectroscopic and MS data analyses. Larvicidal activities of these phrymarolin analogues were assayed against 4th instar larvae of Culex pipiens pallens. The ester derivatives of phrymarolin showed lower larvicidal activity than phrymarolin I, but some of the ether derivatives and dehydroxy phrymarolin showed much higher activity. Two ether derivatives, 1–18 and 1–19, showed significant larvicidal activity with LC50 values of 1.89 and 7.78 mg/L, respectively.

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