Estudo das glândulas salivares de fêmeas e de machos de carrapatos Rhipicephalus sanguineus (Latreille, 1806) (Acari, Ixodidae): caracterização do ciclo secretor com ênfase no processo de degenaração
Carregando...
Data
2007-05-30
Autores
Furquim, Karim Christina Scopinho [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
As glândulas salivares de carrapatos fêmeas: em jejum, com dois e quatro dias de alimentação (em ingurgitamento), alimentadas (ingurgitadas), com três e sete dias pós-alimentação (pós-ingurgitamento); e de machos: em jejum, com dois, quatro e sete dias de infestação e com três e sete dias pós-remoção do hospedeiro, da espécie Rhipicephalus sanguineus, foram analisadas morfológica, histoquímica e citoquimicamente. Nas fêmeas elas são compostas pelos ácinos I (agranulares), II e III (granulares), e nos machos pelos ácinos I (agranulares), II, III e IV (granulares). Em ambos os sexos também foram observados ácinos Indeterminados, assim chamados devido ao processo degenerativo onde perderam suas características e não puderam ser identificados. Histologicamente os ácinos do tipo I sempre apresentaram uma célula central maior e várias periféricas menores, os do tipo II nas fêmeas apresentaram células indiferenciadas, indefinidas 1 e 2, a, b e c1 a c6 e nos machos as indiferenciadas, indefinidas 1 e 2, a, b e c1 a c8, tendo sido as indiferenciadas, as indefinidas 1 e 2 e as c5 a c8 descritas pela primeira vez. As células aqui denominadas de indeterminadas foram observadas nos ácinos II em estágio de degeneração. Os ácinos do tipo III apresentaram as células d, e e f e os do tipo IV células g. Quanto ao estágio, durante todo o processo de alimentação, tanto nas fêmeas quanto nos machos, os ácinos I sofreram apenas alterações no tamanho. Nos ácinos II de fêmeas em jejum apenas as células indiferenciadas, indefinidas 1 e 2 e a, c1 e c3 foram observadas; nos ácinos III os três tipos descritos estavam presentes. Nos machos em jejum os ácinos II e III tinham as mesmas características observadas nas fêmeas em jejum. Nos ácinos IV todas as células (g) estavam pouco ativas. Com o iniciar da alimentação, as glândulas passaram...
The salivary glands of the tick Rhipicephalus sanguineus were analyzed morphologically, histochemically and cytochemicallt at the following conditions: unfed, two and four-day fed, engorged females and females at day three and seven post-engorgement; and unfed males and males at day two, four and seven days post-attachment, and at day three and seven post-detachment from the rabbits. In females, these glands consist of types I (agranular), II and III (granular) acini and in males, of types I (agranular), II, III and IV (granular) acini. In both sexes, Indeterminate acini were also observed, which due to the degeneration process, have lost their characteristics and could not be identified. Histologically, type I acinus always exhibited a large central cell and several smaller peripheral ones. In females, type II acini are composed of undifferentiated, undefined 1 and 2, a, b and c1-c6 ; and in males, undifferentiated, undefined 1 and 2, a, b and c1-c8, with undifferentiated, undefined 1 and 2, and c5-c8 being described here for the first time. The cells termed in this study as indeterminate were observed in degenerating type II acini. Type III acinus exhibited cells d, e and f, while type IV acini, cells g. Regarding the feeding stage, throughout the entire process, in females as well as males, type I acinus only underwent changes in size. In type II acinus of unfed females, only undifferentiated, undefined 1 and 2 and a, c1, and c3 cells were observed, while in type III acinus, the three cell types described were present. In unfed males, type II and III acini exhibited the same characteristics observed in unfed females. In type IV acinus, all cells (g) were little active. With the start of feeding, glands began to secrete actively. In two-day fed females, all cell types were observed in type II acinus, except cells types undifferentiated, undefined 1 and 2... (Complete abstract, click electronic access below)
The salivary glands of the tick Rhipicephalus sanguineus were analyzed morphologically, histochemically and cytochemicallt at the following conditions: unfed, two and four-day fed, engorged females and females at day three and seven post-engorgement; and unfed males and males at day two, four and seven days post-attachment, and at day three and seven post-detachment from the rabbits. In females, these glands consist of types I (agranular), II and III (granular) acini and in males, of types I (agranular), II, III and IV (granular) acini. In both sexes, Indeterminate acini were also observed, which due to the degeneration process, have lost their characteristics and could not be identified. Histologically, type I acinus always exhibited a large central cell and several smaller peripheral ones. In females, type II acini are composed of undifferentiated, undefined 1 and 2, a, b and c1-c6 ; and in males, undifferentiated, undefined 1 and 2, a, b and c1-c8, with undifferentiated, undefined 1 and 2, and c5-c8 being described here for the first time. The cells termed in this study as indeterminate were observed in degenerating type II acini. Type III acinus exhibited cells d, e and f, while type IV acini, cells g. Regarding the feeding stage, throughout the entire process, in females as well as males, type I acinus only underwent changes in size. In type II acinus of unfed females, only undifferentiated, undefined 1 and 2 and a, c1, and c3 cells were observed, while in type III acinus, the three cell types described were present. In unfed males, type II and III acini exhibited the same characteristics observed in unfed females. In type IV acinus, all cells (g) were little active. With the start of feeding, glands began to secrete actively. In two-day fed females, all cell types were observed in type II acinus, except cells types undifferentiated, undefined 1 and 2... (Complete abstract, click electronic access below)
Descrição
Palavras-chave
Ácaro, Carrapato, Atividade celular, Apoptose, Acarus
Como citar
FURQUIM, Karim Christina Scopinho. Estudo das glândulas salivares de fêmeas e de machos de carrapatos Rhipicephalus sanguineus (Latreille, 1806) (Acari, Ixodidae): caracterização do ciclo secretor com ênfase no processo de degenaração. 2007. v, 237 f. Tese (doutorado) - Universidade Estadual Paulista, Instituto de Biociências de Rio Claro, 2007.