Results 31 to 40 of about 3,840 (180)

Comparative descriptions of eggs from three species of Rhodnius (Hemiptera: Reduviidae: Triatominae)

open access: yesMemorias do Instituto Oswaldo Cruz, 2009
The authors describe and compare the morphological and ultrastructural characteristics of eggs from the three most recent described species of the genus Rhodnius Stål, 1859, which have not previously been studied. These species are Rhodnius colombiensis (
Carolina M dos Santos   +6 more
doaj   +1 more source

Description of Rhodnius marabaensis sp. n. (Hemiptera, Reduviidae, Triatominae) from Pará State, Brazil

open access: yesZooKeys, 2016
Rhodnius marabaensis sp. n. was collected on 12 May 2014 in the Murumurú Environmental Reserve in the city of Marabá, Pará State, Brazil. This study was based on previous consultation of morphological descriptions of 19 Rhodnius species and compared to ...
Eder dos Santos Souza   +7 more
doaj   +3 more sources

Nota sôbre a presença do Rhodnius prolixus Stal, 1859, no Estado de São Paulo, Brasil (Hemiptera, Reduviidae, Triatominae)

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1971
Através de um lote de ninfas e adultos de Rhodnius, proveniente de Mira Estrela, Estado de São Paulo, assinalamos pela p rim e ira vez, a presença de Rhodnius prolixus nesse Estado.
Omar Tavares
doaj   +1 more source

First report of Rhodnius stali Lent, Jurberg & Galvão, 1993 (Hemiptera: Reduviidae: Triatominae), vector of Trypanosoma cruzi (TcI) and Trypanosoma rangeli (TrA), in Rondônia, Southwestern Brazilian Amazonia

open access: yesHeliyon, 2023
Triatomines are hematophagous insects of epidemiological importance as they are vectors of Chagas disease. The first report of Rhodnius stali Lent, Jurberg & Galvão, 1993 in Rondônia, Brazil, is described.
André Luiz Rodrigues Menezes   +6 more
doaj   +1 more source

Aspects of classification of Hemiptera hemocytes from six triatomine species

open access: yesMemorias do Instituto Oswaldo Cruz, 1991
The objective of this work was to characterize, and compare different morphological types of hemocytes of Rhodnius prolixus, Rhodnius, Rhodnius neglectus, Triatoma infestans, Panstrongylus megistus, and Dipetalogaster maximus.
Patricia de Azambuja   +2 more
doaj   +1 more source

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Karyotype of Rhodnius montenegrensis (Hemiptera, Triatominae)

open access: yesGenetics and Molecular Research, 2015
The Triatominae subfamily comprises 6 tribes. The tribe Rhodniini comprises 2 genera and 22 nominal species. Rhodnius montenegrensis (Hemiptera, Triatominae) was recently described as evolutionarily related to R. robustus. Therefore, in order to contribute to karyosystematic study of the tribe Rhodniini, this report describes the number of chromosomes ...
Alevi, K. C. C.   +4 more
openaire   +3 more sources

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

open access: yesJournal 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   +8 more
wiley   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

Rhodnius brethesi Matta

open access: yes, 2009
Species. R. brethesi Matta Etymology. I dedicate this species to Prof. Jean Brethes, the illustrious entomologist at the National Museum of Argentina, for whose teachings I must confess I am very grateful and to whom I hereby make my respectful homage (Matta 1919:94). Original citation. “Dedico esta especie ao illustrado entomologista do Museu Nacional
Gonçalves, Teresa Cristina Monte   +3 more
openaire   +2 more sources

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