This work was supported by Programa de N?cleos de Excel?ncia (PRONEX), Financiadora de Estudos e Projetos (FINEP), Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq), and the Wellcome Trust.; Minist?rio da Sa?de. Funda??o Nacional de Sa?de. Instituto Evandro Chagas. Unidade de Microscopia Eletr?nica. Bel?m, PA, Brasil.; Universidade Federal do Par?. Departamento de Patologia. Centro de Ci?ncia...
Made available in DSpace on 2018-12-11T17:17:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-05-01; Lignocellulosic biomasses such as banana pseudostem are attractive cellulose sources for bioenergy production, and for the use in biorefinery processes. However, pretreatment of lignocellulosic material is required to remove hemicellulose and lignin, while increasing cellulose accessibility to enzymatic...
Ultrastructural cytochemical techniques were used for the localization of phosphatases in spermatid and spermatozoon of the mosquito, Culex quinquefasciatus (Diptera : Culicidae). Acid phosphatase was found mainly in the trans-most portion of the Golgi complex. Thiamine pyrophosphotase was preferentially located in the cis-most portion of the Golgi complex. Glucose-6-phosphatase was located in the endoplasmic r...
Spermatozoa of the triatomideo Rhodnius prolixus possess an axoneme with a 9 + 9 + 2 microtubule pattern and two mitochondrial derivatives. Bridges occur between axoneme and mitochondrial derivatives. Two paracrystalline structures embedded in amorphous regions were observed in the mitochondrial derivative. The use of the negative staining technique shows a zig-zag profile in the mitochondrial derivatives due t...
A freeze-fracture study was carried out on spermatid and spermatozoon of the mosquitoCulex quinquefasciatus. In the spermatid plasma membrane few and randomly distributed intramembranous particles were observed. In the spermatozoon the density of intramembranous particles was higher on the P- than on the E-fracture face of the plasma membrane. Two populations of particles were observed. Large particles (about 1...
Universidade Federal do Par?. Centro de Ci?ncias Biol?gicas. Departamento de Patologia. Bel?m, PA, Brasil.; Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Bel?m, PA, Brasil.; Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Bel?m, PA, Brasil.; Universidade Estadual do Norte Fluminense. Centro de Bioci?ncias e Biotecnologia. Laborat?rio de Biolo...
Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Bel?m, PA, Brasil.; Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Bel?m, PA, Brasil.; University of Texas Medical Branch. Department of Patholoogy and Center for Biodefense and Emerging Infectious Diseases. Galveston, TX, USA.; Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Ev...
Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (MCT-CNPq), Funda??o de Coordena??o de Pessoal de N?vel Superior (CAPES), Funda??o Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ), Funda??o Estadual do Norte Fluminense (FENORTE), Financiadora de Estudos e Projetos (FINEP), Programa Nacional de Coopera??o Acad?mica (PROCAD) and Programa de N?cleos de Excel?ncia (PRONEX)...