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Anopheles dirus

NOT Open Access | Anopheles dirus yellow-g mediates Plasmodium vivax infection

June 9, 2021 - 07:22 -- NOT Open Access
Author(s): 
Mongkol W, Pomun T, Nguitragool W, Kumpitak C, Duangmanee A, Sattabongkot J, Kubera A
Reference: 
Trop Med Int Health. 2021 Jun 5

Our previous transcriptome analysis of Anopheles dirus revealed up regulation of the An. dirus yellow-g gene upon ingestion of Plasmodium vivax-infected blood. This gene belongs to the yellow gene family, but its role regarding P. vivax infection is not known and remains to be validated. The aim of this study was to investigate the role of the An. dirus yellow-g gene in P. vivax infection.

Bacillus sphaericus exposure reduced vector competence of Anopheles dirus to Plasmodium yoelii by upregulating the Imd signaling pathway

September 8, 2020 - 12:34 -- Open Access
Author(s): 
Yu S, Wang P, Qin J, Zheng H, Wang J, Liu T, Yang X, Wang Y
Reference: 
Parasit Vectors. 2020 Sep 5;13(1):446

Vector control with Bacillus sphaericus (Bs) is an effective way to block the transmission of malaria. However, in practical application of Bs agents, a sublethal dose effect was often caused by insufficient dosing, and it is little known whether the Bs exposure would affect the surviving mosquitoes’ vector capacity to malaria.

NOT Open Access | Serratia marcescens secretes proteases and chitinases with larvicidal activity against Anopheles dirus

September 1, 2020 - 13:46 -- NOT Open Access
Author(s): 
Jupatanakul N, Pengon J, Selisana SMG, Choksawangkarn W, Jaito N, Saeung A, Bunyong R, Posayapisit N, Thammatinna K, Kalpongnukul N, Aupalee K, Pisitkun T, Kamchonwongpaisan S
Reference: 
Acta Trop. 2020 Aug 28:105686

Vector control, the most efficient tool to reduce mosquito-borne disease transmission, has been compromised by the rise of insecticide resistance. Recent studies suggest the potential of mosquito-associated microbiota as a source for new biocontrol agents or new insecticidal chemotypes. In this study, we identified a strain of Serratia marcescens that has larvicidal activity against Anopheles dirus, an important malaria vector in Southeast Asia.

NOT Open Access | Transcriptome analysis of Anopheles dirus and Plasmodium vivax at ookinete and oocyst stages

April 23, 2020 - 14:31 -- NOT Open Access
Author(s): 
Boonkaew T, Mongkol W, Prasert S, Paochan P, Yoneda S, Nguitragool W, Kumpitak C, Sattabongkot J, Kubera A
Reference: 
Acta Trop. 2020 Apr 19:105502

Malaria is transmitted by Plasmodium parasites through the bite of female Anopheles mosquitoes. One of the most important mosquito vectors in the Greater Mekong Subregion is Anopheles dirus. This study reports RNA sequencing (RNA-Seq) transcriptome analysis of An. dirus at 18 hours and 7 days after a P. vivax-infected blood meal, which represent infection at the ookinete and oocyst parasite developmental stages, respectively.

Longevity of the insecticidal effect of three pyrethroid formulations applied to outdoor vegetation on a laboratory-adapted colony of the Southeast Asian malaria vector Anopheles dirus

April 15, 2020 - 14:26 -- Open Access
Author(s): 
Chaumeau V, Wisisakun P, Sawasdichai S, Kankew P, Htoo GN, Saithanmettajit S, Aryalamloed S, Lee NY, Delmas G, Nosten F
Reference: 
PLoS ONE 15(4): e0231251

Outdoor residual spraying is proposed for the control of exophilic mosquitoes. However, the residual effect of insecticide mists applied to outdoor resting habitats of mosquitoes is not well characterized. The objective of this study was to assess the longevity of the residual insecticidal effect of three pyrethroid formulations applied to outdoor vegetation against the Southeast Asian malaria vector Anopheles dirus.

The impact of transfluthrin on the spatial repellency of the primary malaria mosquito vectors in Vietnam: Anopheles dirus and Anopheles minimus

January 7, 2020 - 15:16 -- Open Access
Author(s): 
Nicholas J. Martin, Vu S. Nam, Andrew A. Lover, Tran V. Phong, Tran C. Tu and Ian H. Mendenhall
Reference: 
Malaria Journal 2020 19:9, 6 January 2020

The complexity of mosquito-borne diseases poses a major challenge to global health efforts to mitigate their impact on people residing in sub-tropical and tropical regions, to travellers and deployed military personnel. To supplement drug- and vaccine-based disease control programmes, other strategies are urgently needed, including the direct control of disease vectors. Modern vector control research generally focuses on identifying novel active ingredients and/or innovative methods to reduce human-mosquito interactions. These efforts include the evaluation of spatial repellents, which are compounds capable of altering mosquito feeding behaviour without direct contact with the chemical source.

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