Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/36913
Title: The Midgut Muscle Network of Anopheles aquasalis (Culicidae, Anophelinae): Microanatomy and Structural Modification After Blood Meal and Plasmodium vivax (Haemosporida, Plasmodiidae) Infection.
Authors: Silva, Djane Clarys Baia da
Orfanó, Alessandra da Silva
Pimenta, Rafael Nacif
Melo, Fabrício Freire de
Simões, Suzan
Cabral, Iria
Lacerda, Marcus Vinicíus Guimarães
Guerra, Maria das Graças Barbosa
Monteiro, Wuelton Marcelo
Secundino, Nagila Francinete Costa
Pimenta, Paulo Filemon Paolucci
Affilliation: Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, PMG, Brazil/Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil
Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil
Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil
Universidade Federal da Bahia. Instituto Multidisciplinar em Saúde. Vitória da Conquista, BA, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, AM, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, AM, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, PMG, Brazil/Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil/Fundação Oswaldo Cruz. Instituto Leônidas & Maria Deane. Manaus, AM, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, PMG, Brazil/Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, PMG, Brazil/Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil
Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil/Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado. Manaus, AM, Brazil/Universidade do Estado do Amazonas. Programa de Pós-Graduação em Medicina Tropical. Manaus, AM, Brazil/Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil
Abstract: The mosquito midgut is divided into two regions named anterior midgut (AMG) and posterior midgut (PMG). The midgut expands intensely after the blood ingestion to accommodate a large amount of ingested food. To efficiently support the bloodmeal-induced changes, the organization of the visceral muscle fibers has significant adjustments. This study describes the spatial organization of the Anopheles aquasalis (Culicidae, Anophelinae) midgut muscle network and morphological changes after bloodmeal ingestion and infection with Plasmodium vivax (Haemosporida, Plasmodiidae). The midgut muscle network is composed of two types of fibers: longitudinal and circular. The two types of muscle fibers are composed of thick and thin filaments, similar to myosin and actin, respectively. Invagination of sarcoplasm membrane forms the T-system tubules. Sarcoplasmic reticulum cisternae have been observed in association with these invaginations. At different times after the bloodmeal, the fibers in the AMG are not modified. A remarkable dilation characterizes the transitional area between the AMG and the PMG. In the PMG surface, after the completion of bloodmeal ingestion, the stretched muscle fibers became discontinued. At 72 h after bloodmeal digestion, it is possible to observe the presence of disorganized muscle fibers in the midgut regions. The Plasmodium oocyst development along the basal layer of the midgut does not have a significant role in the visceral musculature distribution. This study provides features of the visceral musculature at different blood feeding times of An. aquasalis and shows important changes in midgut topography including when the mosquitoes are infected with P. vivax.
Keywords: midgut muscle network
bloodmeal
Plasmodium vivax
Issue Date: 2018
Publisher: Oxford University Press
Citation: SILVA, Djane Clarys Baia da et al. The Midgut Muscle Network of Anopheles aquasalis (Culicidae, Anophelinae): Microanatomy and Structural Modification After Blood Meal and Plasmodium vivax (Haemosporida, Plasmodiidae) Infection. J Med Entomol., v. 20, n. 10, p. 1-11, 2018
DOI: 10.1093/jme/tjy199
ISSN: 0022-2585
Copyright: restricted access
Appears in Collections:MG - IRR - Artigos de Periódicos

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