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Larvicidal activity and chemical compositions of Juniperus phoenicea L. leave extract against Culex pipiens L.

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Title Larvicidal activity and chemical compositions of Juniperus phoenicea L. leave extract against Culex pipiens L.
 
Creator Boulkenafet, Fouzi
Benzazia, Samia
Mellahi, Lamia
Al-Mekhlafi, Fahd A.
Abutaha, Nael
S. Al-Khalifa, Mohammed
Lambiase, Simonetta
 
Subject Cupressaceae
Mosquitocidal resistance
9,12- Octadecadienoic
Phoenician juniper
Saint Louis encephalitis virus
West Nile virus
Usutu virus
 
Description 687-692
Mosquitoes are of great concern in many countries. Culex
pipiens L. (Diptera:Culicidae) is the vector of the West Nile virus
and Usutu Viruses. Intense use of insecticidal agents has resulted
in increased mosquitocidal resistance, and thereby search for new
effective mosquitocidal agents. In this context, we have explored
the larvicidal potential of Phoenician juniper [Juniperus phoenicea L.
(Fam. Cupressaceae)] against Cx. pipiens and studied the
chemical composition of the leaf extract. Fresh leaves of
J. phoenicea were macerated in 70% methanol. The LC50 at 24, 48
and 72 h post-treatment with methanol extract were 7.14, 3.97 and
3.17 μg/mL, respectively, against Cx. pipiens larvae. In treated
larvae, the cells lost integrity, nucleus and cell membrane damage,
basal lamina detached, and lost nuclear and cytoplasmic materials.
From GC–MS analysis, 19 compounds were detected. Some of
the phytochemicals detected in J. phoenicea extract were 9,12-
octadecadienoic acid (Z,Z)-(50.2.%), podocarpa-8,11,13-trien-3-one,
14-isopropyl-13-methoxy-(13.2%), -Amino-7,10-dimethyldibenzo
[b,f][1,4]oxazepin-11(10H)-one (8.4%), and n-hexadecanoic acid
(5.6%). J. phoenicea offered promising larvicidal activity against
Cx. pipiens.
 
Date 2024-09-09T05:54:39Z
2024-09-09T05:54:39Z
2024-09
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscpr.res.in/handle/123456789/64482
https://doi.org/10.56042/ijeb.v62i08.5850
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEB Vol.62(08) [August 2024]