Identification and expression patterns of two TRPV channel genes in antennae and Johnston's organ of the dengue and Zika virus vector mosquito, Aedes aegypti

2016 ◽  
Vol 19 (3) ◽  
pp. 563-569 ◽  
Author(s):  
Young-Eun Na ◽  
Je Won Jung ◽  
Hyung Wook Kwon
1989 ◽  
Vol 67 (11) ◽  
pp. 2625-2632 ◽  
Author(s):  
Peter Belton

Although the flagellum of the antennae of mosquito-like insects is known to vibrate in response to sounds, descriptions of the cuticular parts that suspend it in the second antennal segment are somewhat contradictory and incomplete. The complex structures that attach the base of the flagellum to the pedicel and its sense cells in Aedes aegypti (L.) (Diptera: Culicidae) are described. They are consistent with the functions of suspending the flagellum firmly in the pedicel and of anchoring the sheathing rods of the acoustically sensitive scolopidia while their dendrites are stretched or bent by the movement of the prongs.


Author(s):  
Velusamy Arumugam ◽  
Manigandan Venkatesan ◽  
Karthi Sengodan ◽  
Umamaheswari Sundaresan ◽  
Satheesh Kumar Palanisamy

In this present study, we conducted untargeted metabolic profiling using Gas Chromatography-Mass Spectrometry (GC-MS) analysis of ascidian Didemnum bistratum to assess the chemical constituents by searching in NIST library with promising biological properties against anti-bacterial and Zika virus vector mosquitocidal Properties. Metabolites, steroids and fatty acids are abundant in crude compounds of ascidian D. bistratum and showed potential zone growth inhibition against bacterial strains Kluyvera ascorbate (10 mm). The active crude compounds of D. bistratum exhibited prominent larvicidal activity against the Zika vector mosquitoes of Aedes aegypti and Cluex quinquefasciatus (LC50 values of 0.4436 to 2.23 mg/mL). The findings of this study provide a first evidence of the biological properties exhibited by D. bistratum extracts, thus increasing the knowledge about the Zika virus vector mosquitocidal properties of ascidian. Overall, ascidian D. bistratum are promising and biocontrol or eco-friendly tool against A. aegypti and C. quinquefasciatus with prospective toxicity against non-target organisms.


2021 ◽  
Vol 10 (1) ◽  
pp. 742-755
Author(s):  
Ramachandran Ishwarya ◽  
Kavitha Saravanan ◽  
Daniel Selvaraj ◽  
Marimuthu Govindarajan ◽  
Naiyf S. Alharbi ◽  
...  

Abstract Fabrication and use of nanoparticles have progressively enlarged within the last decade. Herein the silver nanoparticles (AgNps) were synthesized via the extract from Marsilea quadrifolia (Mq) as a decreasing and steadying mediator. The Mq-AgNPs demonstrated superior toxicity on Zika virus vector, Aedes aegypti with the LC50 value of 10.69 µg·mL−1. The Mq-AgNPs were established securely to non-target organisms Artemia nauplii and Ceriodaphnia cornuta, and no structural or anatomical alterations confirm its security to the surroundings. The antibacterial activity exposed that Mq-AgNPs showed superior growth inhibition effect against the tested bacteria. Furthermore, the Mq-AgNPs showed strong antioxidant activities when compared to Mq leaf extract. Overall, our results highlight that Mq-AgNPs are hopeful and biodegradable devices against mosquito vectors of therapeutic significance, with moderate toxicity against non-target aquatic animals.


2016 ◽  
Vol 146 (3-4) ◽  
pp. 487-500 ◽  
Author(s):  
Andrew J. Monaghan ◽  
K. M. Sampson ◽  
D. F. Steinhoff ◽  
K. C. Ernst ◽  
K. L. Ebi ◽  
...  

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