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

Morphological Characterization of Rhinacanthus Species of Sri Lanka

Planta Medica ◽  
2010 ◽  
Vol 76 (05) ◽  
Author(s):  
APPR Amarasinghe ◽  
RP Karunagoda ◽  
DSA Wijesundara
Keyword(s):  
Sri Lanka ◽  
Morphological Characterization

scholarly journals Hydrogeochemical characterization of Jaffna’s aquifer systems in Sri Lanka

2013 ◽  
Author(s):  
T. Mikunthan ◽  
M. Vithanage ◽  
S. Pathmarajah ◽  
S. Arasalingam ◽  
R. Ariyaratne ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Aquifer Systems ◽  
Hydrogeochemical Characterization

Mechanisms of insecticide resistance in a temephos selected Culex quinquefasciatus (Diptera: Culicidae) strain from Sri Lanka

1990 ◽  
Vol 80 (4) ◽  
pp. 453-457 ◽  
Author(s):  
H.T.R. Peiris ◽  
J. Hemingway
Keyword(s):  
Cytochrome P450 ◽  
Sri Lanka ◽  
Culex Quinquefasciatus ◽  
Resistant Strain ◽  
Resistance Mechanism ◽  
Transferase Activity ◽  
Glutathione S Transferase ◽  
Biochemical Assays ◽  
Significant Difference ◽  
Naphthyl Acetate

AbstractCulex quinquefasciatus Say from Peliyagoda, Sri Lanka, has larval resistance to temephos, malathion, fenitrothion and chlorpyrifos. Biochemical assays on individual resistant and susceptible mosquitoes of this strain showed that there was a good correlation between this resistance and increased esterase activity with both 1-and 2-naphthyl acetate, which appears to be the major resistance mechanism in this multiple organophosphate resistant strain. There was no significant difference in malaoxon, bendiocarb or propoxur sensitivity of the acetylcholinesterase from the resistant and susceptible strains, indicating that the sensitivity of the target site has not been altered. Biochemical assays on mass homogenates of the resistant and susceptible strains showed no correlation between resistance and the level of glutathione s-transferase activity, or the amount of cytochrome P450 present.

Typification and taxonomic remarks of Indobanalia (Amaranthaceae) in India

Phytotaxa ◽  
2021 ◽  
Vol 513 (3) ◽  
pp. 265-270
Author(s):  
DUILIO IAMONICO ◽  
SINDHU ARYA ◽  
VENUGOPALAN NAIR SARADAMMA ANIL KUMAR
Keyword(s):  
Sri Lanka ◽  
Endemic Species ◽  
Tamil Nadu ◽  
Andhra Pradesh ◽  
Morphological Characterization ◽  
Herbarium Specimens ◽  
Peninsular India ◽  
Field Surveys ◽  
The Moment

Indobanalia thyrsiflora is an endemic species occurring in peninsular India (Andhra Pradesh, Karnataka, Kerala and Tamil Nadu States) and Sri Lanka. A nomenclatural study of the basionym Banalia thyrsiflora, published by Moquin-Tandon in Candolle’s Prodromus (year 1849), is carried out and the name is lectotypified on a specimen deposited at P (barcode P00609924); isolectotypes are traced at K and CAL. A preliminary morphological characterization of the species is also given, based on field surveys and examination of herbarium specimens. We noted that I. thyrsiflora is highly variable. However, we prefer to avoid, for the moment, taxonomic conclusions about the various morphotypes found, waiting the complete results of this ongoing morphological and molecular investigations.

Sign in / Sign up

Export Citation Format

Share Document