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Registros recuperados: 6
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Embriogênese somática e regeneração de plantas em açaizeiro. Infoteca-e
LEDO, A. da S.; LAMEIRA, O. A.; MENEZES, I. C. de.
O objetivo do presente trabalho foi estudar as diferentes respostas morfogenéticas de embriões zigóticos de açaizeiro (Euterpe oleracea Mart.) submetidos a várias condições de cultura in vitro. Os experimentos foram conduzidos em laboratório com material vegetal coletado de plantas de açaí na Embrapa Amazônia Oriental, Belém, PA, Brasil. Verificou-se a expressão de um modelo de embriogênese somática, direto, repetitivo a assincronizado em embriões zigóticos maduros cultivados em meio primário MS suplementado com 339.36 ? M de 2,4-diclorofenoxiacético (2,4-D) e transferidos para meio secundário MS na presença de 0,537 ? M de ácido 1-naftalenoacético (ANA) e 12,30 ? M de 2-isopenteniladenina (2iP). A conversão de embriões somáticos em plântulas foi alcançada...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Açaí de touceira; Embrapa Amazônia Oriental; Belém (PA); Pará; Eastern Amazon; Amazônia Oriental; Micropropagación.; Cultivo in vitro; Fitomejoramiento; Embriogénesis; Melhoramento genético vegetal; Açaí; Euterpe oleracea; Cultura in vitro; Embriogênese.; Micropropagação; Embryogenesis.; Micropropagation; Plant breeding; In vitro culture.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/496030
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Leishmania infantum infection in dogs from maroon communities in the Eastern Amazon Ciência Rural
Silva,Andréia Ferreira da; Damasceno,Ágatha Rossanni Alves; Prado,Welton Seabra; Caldeira,Rossela Damasceno; Sampaio-Junior,Francisco Dantas; Farias,Diana Maria de; Silva,Laís Cristina Oliveira da; Guimarães,Ricardo José de Paula Souza e; Góes-Cavalcante,Gustavo; Scofield,Alessandra.
ABSTRACT: This study was designed to detect L. infantum infection in dogs and to evaluate the factors associated with canine visceral leishmaniasis in the maroon communities of Menino Jesus de Petimandeua and Itaboca in the municipality of Inhangapi, Pará, Brazil. Whole blood and intact skin samples were collected from 143 dogs, and a questionnaire was applied. L. infantum DNA was detected by polymerase chain reaction (PCR) using primers RV1 and RV2. Collection sites were georeferenced to obtain a spatial distribution of the residences visited and infected dogs. L. infantum DNA was detected in 8.4% (12/143) of the skin samples and in 1.4% (2/143) of the blood samples. On the risk map, three clusters were observed in Itaboca and one was observed in Menino...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmania infantum; Maroon communities; Dog; PCR; Eastern Amazon.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100501
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Length-weight relationship and condition factor of eight fish species from the upper Araguari River, State of Amapá, Brazil Biological Sciences
Prestes, Luiza; Oliveira, Marcos Sidney Brito; Tavares-Dias, Marcos; Soares, Maria Gercilia Mota; Cunha, Fabiana Calacina.
The present study estimated parameters of the length-weight relationship (LWR) and allometric condition factor for eight fish species from the upper Araguari River, in the State of Amapá, Brazil. A total of 615 fish of eight species were analyzed: Acestrorhynchus falcatus, A. falcirostris, Ageneiosus inermis, Hemiodus unimaculatus, Hoplias aimara, Myloplus asterias, M. ternetzi and Tometes trilobatus. The allometric condition factor varied from 0.742 to 1.435. The coefficient of allometry ranged from 2.723 to 3.225. The coefficient of determination (R2) of the LWR ranged from 0.742 to 0.985. This is the first estimate of the length-weight relationship for fish from the Araguari River and the first record of these parameters for Myloplus ternetzi and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth; Fish stocks; Eastern Amazon; Stock assessment. Growth Fish stocks Eastern Amazon State of Amapá.
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46666
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Molecular detection of Trypanosoma evansi (Kinetoplastida: Trypanosomatidae) in procyonids (Carnivora: Procyonidae) in Eastern Amazon, Brazil Ciência Rural
Magalhães-Matos,Paulo Cesar; Cunha-Santos,Rafaelle; Sousa,Paulo Geovani Silva; Sampaio-Júnior,Francisco Dantas; Barros,Flávia de Nazaré Leite; Mourão,Fábio Rodrigo Paixão; Oliveira,Wanessa Batista Lima; Gabriel,Áurea Martins; Monteiro,Silvia Gonzalez; Góes-Cavalcante,Gustavo; Scofield,Alessandra.
ABSTRACT: The present study aimed to diagnose the natural infection of captive and free-living procyonids with Trypanosoma evansi in the states of Amapá and Pará, Brazil. From February 2012 to August 2013, whole blood samples and blood smears were obtained from 45 free-living procyonids and from nine procyonids kept in captivity in wild life refuges and zoobotanical parks in the states of Amapá and Pará. Whole blood samples were collected and kept at -20ºC for the detection of T. evansi DNA by PCR using the RoTat 1.2 forward and RoTat 1.2 reverse primers. In addition, the blood smears were processed and examined for the presence of trypomastigote forms of T. evansi. T. evansi DNA was detected in 18.52% (10/54) of the procyonids, namely, in captive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trypanosoma evansi; PCR; Procyonidae; Eastern Amazon.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400663
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Taxonomy of Aspidosperma Mart. (Apocynaceae, Rauvolfioideae) in the State of Pará, Northern Brazil Biota Neotropica
Pereira,Andreza Stephanie de Souza; Simões,André Olmos; Santos,João Ubiratan Moreira dos.
Aspidosperma Mart. is one of the most important genera from Apocynaceae Juss. occurring in Brazil. It is present in many plant formations and has species with both medicinal and economic value. From a taxonomic point of view, many of its species are difficult to identify, especially those occurring in the Amazonian region. In order to complement the information already available with regard to the taxonomy and distribution of the genus, the goal of this work was to provide a taxonomic study of the Aspidosperma species occurring in the state of Pará, northern Brazil. This study was based on the analysis of vouchers from the BHCB, HBRA, IAC, IAN, INPA, MG, R, RB and UEC herbaria, as well as scanned images of vouchers from Brazilian and foreign herbaria, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspidospermeae; Diversity; Eastern Amazon; Floristic; Morphology.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200301
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Three decades of reference evapotranspiration estimates for a tropical watershed in the eastern Amazon Anais da ABC (AABC)
SILVA JÚNIOR,RENATO O. DA; SOUZA,EVERALDO B. DE; TAVARES,ALEXANDRA L.; MOTA,JOSÉ A.; FERREIRA,DOUGLAS B.S.; SOUZA-FILHO,PEDRO W.M.; ROCHA,EDSON J.P. DA.
ABSTRACT This study estimated the reference evapotranspiration rate (ETo) for the Itacaiúnas River Watershed (IRW), Eastern Amazonia, and measured the accuracy of eight empirical equations: Penman-Monteith (PM), Priestley-Taylor (PT), Hargreaves and Samani (HS), Camargo (CAM), Thornthwaite (TH), Hamon (HM), Kharrufa (KF) and Turc (TC) using monthly data from 1980 to 2013. In addition, it verifies the regional applicability to the IRW using a for the Marabá-PA station. The methods TC and PM (FAO56) presented the best results, which demonstrate that radiation and higher temperatures are the dominant drivers in the Evapotranspiration process, while relative humidity and wind speed have a much smaller impact. The temporal and spatial variability of ETo for IRW...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calibration; Decades; Eastern Amazon; Evapotranspiration; Methods; Watershed.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000501985
Registros recuperados: 6
Primeira ... 1 ... Última
 

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