Results 61 to 70 of about 106,621 (240)

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos, Danielle Santos, Lupis Ribeiro, Jonathan J. Mucherino‐Muñoz, Marcelle Uhl, Carlos Logullo, A. Mendonça‐Amarante, M. Fantappie, Rodrigo Nunes‐da‐Fonseca   +8 more
wiley   +1 more source

Innate immunity shapes the persistent transmission of plant viruses by insect vectors

New Plant Protection, EarlyView.
In this review, we focus on two key aspects of the virus–vector interplay: (1) persistently transmitted viruses utilize host factors to overcome transmission barriers; and (2) molecular recognition activates antiviral immunity and subsequent viral counter‐defense. Understanding these interactions offers critical insights for developing novel strategies
Gang Lu, Chuanxi Zhang, Junmin Li
wiley   +1 more source

Chitosan‐protected dsRNA increases efficacy against Helicoverpa armigera without compromising biosafety for pollinators

Pest Management Science, EarlyView.
Chitosan/tripolyphosphate/double‐stranded RNA (dsRNA) nanoparticles enhance RNA interference efficacy of orally delivered dsRNA against Helicoverpa armigera. Nanoparticles reduce the LC50 and do not cause deleterious effects or toxicity on beneficial insects.
Daniel DN Vasquez, Lays A Teixeira, Rangel F Alves, Raire Cavalcante, Leonardo LP Macedo, Carmen SS Pires, Luciano P Silva, Maria CM Silva, Feras M Afifi, Carolina V Morgante, Martin G Edwards, Angharad MR Gatehouse, Maria F Grossi‐de‐Sa   +12 more
wiley   +1 more source

Four-way regulation of mosquito yolk protein precursor genes by juvenile hormone-, ecdysone-, nutrient-, and insulin-like peptide signaling pathways. [PDF]

, 2014
Anautogenous mosquito females require a meal of vertebrate blood in order to initiate the production of yolk protein precursors by the fat body. Yolk protein precursor gene expression is tightly repressed in a state-of-arrest before blood meal-related ...
Attardo, Geoffrey M, Drake, Lisa L, Hansen, Immo A, Rodriguez, Stacy D   +3 more
core   +2 more sources

Commercial permethrin elicits chemoreceptive responses on different Anopheles gambiae sensory appendages

Pest Management Science, EarlyView.
Anopheles gambiae mosquitoes exhibit takeoff responses when presented to commercial permethrin headspace. This product elicits electrophysiological activity in the antennae and tarsi. However, only the chemical information acquired from the tarsi plays a major role in the observed behavioral response.
Sassan S Kambou, Adeline Valente, Philip Agnew, Anna Cohuet, David Carrasco   +4 more
wiley   +1 more source

Container Positivity and Larva Distribution Based on the Container Characteristics [PDF]

, 2017
Dengue Haemorrhagic Fever (DHF) prevention and control program has been conducted in Kupang City but DHF Incidence Rate (IR) is always high and exceeds the national average.
Notobroto, H. B. (Hari), Subekti, S. (Sri), Umniati, S. R. (Sitti), Wanti, W. (Wanti), Yotopranoto, S. (Subagyo), Yudhastuti, R. (Ririh)   +5 more
core  

Culex quinquefasciatus mosquitoes do not support replication of Zika virus [PDF]

, 2017
The rapid spread of Zika virus (ZIKV) in the Americas raised many questions about the role of Culex quinquefasciatus mosquitoes in transmission, in addition to the key role played by the vector Aedes aegypti.
Failloux, Anna-Bella, Guimarães Rocha Aguiarr, Eric Roberto, Kohl, Alain, Lourenço-de-Oliveira, Ricardo, Marques, João T., Nten, Célestine Atyame, Sreenu, Vattipally B., Varjak, Margus   +7 more
core   +3 more sources

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

Pest Management Science, EarlyView.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares, Thalya Soares Ribeiro Nogueira, Maria Aparecida Aride Bertonceli, Renata Rodrigues da Silva Robaina, Leticia Oliveira da Rocha, Francisco José Alves Lemos, Kátia Valevski Sales Fernandes, Raimundo Braz‐Filho, Ivo José Curcino Vieira   +8 more
wiley   +1 more source

Species composition and risk of transmission of some Aedes-borne arboviruses in some sites in Northern Ghana.

PLoS ONE, 2021
Aedes-borne viral diseases mainly Yellow Fever (YF), Dengue (DEN), Zika (ZIK) and Chikungunya (CHK) have contributed to many deaths' in the world especially in Africa. There have been major outbreaks of these diseases in West Africa.
Joannitta Joannides, Mawuli Dzodzomenyo, Faustus Azerigyik, Eudocia Esinam Agbosu, Deborah Pratt, Joseph Harold Nyarko Osei, Rebecca Pwalia, Godwin Kwame Amlalo, Maxwell Appawu, Hayashi Takashi, Shiroh Iwanaga, Andrea Buchwald, Rosemary Rochford, Daniel Boakye, Kwadwo Koram, Kofi Bonney, Samuel Dadzie   +16 more
doaj   +1 more source

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source