scholarly journals Insecticide resistance and molecular characterization of knockdown resistance ( kdr ) in Culex quinquefasciatus mosquitoes in Sri Lanka

2020 ◽  
Vol 45 (2) ◽  
pp. 204-210
Author(s):  
P.K. Geethika K. Chandrasiri ◽  
Sachini D. Fernando ◽  
B.G.D. Nissanka K. De Silva
Keyword(s):  
Sri Lanka ◽  
Insecticide Resistance ◽  
Molecular Characterization ◽  
Culex Quinquefasciatus ◽  
Knockdown Resistance

Characterization of knockdown resistance in DDT- and pyrethroid-resistant Culex quinquefasciatus populations from Sri Lanka

2008 ◽  
Vol 13 (4) ◽  
pp. 548-555 ◽  
Author(s):  
Charles S. Wondji ◽  
W. A. P. Priyanka De Silva ◽  
Janet Hemingway ◽  
Hilary Ranson ◽  
S. H. P. Parakrama Karunaratne
Keyword(s):  
Sri Lanka ◽  
Culex Quinquefasciatus ◽  
Knockdown Resistance

Morphology and Molecular Characterization of Parabronema smithii (Cobbold, 1882) (Nematoda: Habronematidae) from Wild Asian Elephant (Elephas maximus maximus) of Sri Lanka

2020 ◽  
Vol 65 (2) ◽  
pp. 504-517
Author(s):  
Lasanthika D. Thewarage ◽  
Duminda S. B. Dissanayake ◽  
Udari S. Perera ◽  
Anura T. Bandara ◽  
B. V. P. Perera ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Molecular Characterization ◽  
Asian Elephant ◽  
Elephas Maximus

Functional expression and molecular characterization of Culex quinquefasciatus salivary α-glucosidase (MalI)

2015 ◽  
Vol 110 ◽  
pp. 145-150 ◽  
Author(s):  
Rungarun Suthangkornkul ◽  
Phanthila Sirichaiyakul ◽  
Sungsit Sungvornyothin ◽  
Apanchanid Thepouyporn ◽  
Jisnuson Svasti ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Culex Quinquefasciatus ◽  
Functional Expression

Molecular and biochemical characterization of a sand fly population from Sri Lanka: evidence for insecticide resistance due to altered esterases and insensitive acetylcholinesterase

2005 ◽  
Vol 95 (4) ◽  
pp. 371-380 ◽  
Author(s):  
S.N. Surendran ◽  
S.H.P.P. Karunaratne ◽  
Z. Adamsn ◽  
J. Hemingway ◽  
N.J. Hawkes
Keyword(s):  
Sri Lanka ◽  
Insecticide Resistance ◽  
Biochemical Characterization ◽  
Preliminary Evidence ◽  
Resistance Mechanisms ◽  
Sand Fly ◽  
Cross Resistance ◽  
Cytochrome P450 Monooxygenases ◽  
Sand Flies

AbstractWith an increasing incidence of cutaneous leishmaniasis in Sri Lanka, particularly in northern provinces, insecticide-mediated vector control is under consideration. Optimizing such a strategy requires the characterization of sand fly populations in target areas with regard to species composition and extant resistance, among other parameters. Sand flies were collected by human bait and cattle-baited net traps on Delft Island, used as an illegal transit location by many refugees returning to the north of Sri Lanka from southern India where leishmaniasis is endemic. For species identification, genomic DNA was extracted and a fragment of the ribosomal 18S gene amplified. The sequence from all flies analysed matched that of Phlebotomus argentipes Annandale & Brunetti, the primary vector in India and the most likely vector in Sri Lanka. Independent morphological analysis also identified P. argentipes. To establish the current susceptibility status of vector species, data were obtained at the biochemical level, from which potential cross-resistance to alternative insecticides can be predicted. The Delft Island collection was assayed for the activities of four enzyme systems involved in insecticide resistance (acetylcholinesterase, non-specific carboxylesterases, glutathione-S-transferases and cytochrome p450 monooxygenases), establishing baselines against which subsequent collections can be evaluated. There was preliminary evidence for elevated esterases and altered acetylcholinesterase in this population, the first report of these resistance mechanisms in sand flies to our knowledge, which probably arose from the malathion-based spraying regimes of the Anti-Malarial Campaign.

Molecular characterization of cyanobacterial diversity in Lake Gregory, Sri Lanka

2011 ◽  
Vol 29 (4) ◽  
pp. 898-904 ◽  
Author(s):  
Dhammika Magana-Arachchi ◽  
Rasika Wanigatunge ◽  
Madhushankha Liyanage
Keyword(s):  
Sri Lanka ◽  
Molecular Characterization ◽  
Cyanobacterial Diversity
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