40 research outputs found
Novos registros de moscas-das-frutas (Diptera: Tephritidae), hospedeiros silvestres e parasitĂłides (Hymenoptera: Braconidae) na AmazĂŽnia brasileira
Anastrepha anomala Stone was obtained from Parahancornia amapa (Huber) Ducke (Apocynaceae) fruits, and Anastrepha hastata Stone from Cheiloclinium cognatum (Miers.) (Hippocrateaceae) in the State of AmapĂĄ, Brazil. Two braconids, Doryctobracon sp. and Opius bellus Gahan, were reared from the latter fruit fly species. This is the first record of P. amapa as a fruit fly host. C. cognatum is the first host known to A. hastata. Both braconids are also the first records of parasitoids for this species.Anastrepha anomala Stone foi obtida de frutos de Parahancornia amapa (Huber) Ducke (Apocynaceae) e Anastrepha hastata Stone de Cheiloclinium cognatum (Miers.) (Hippocrateaceae) no AmapĂĄ, sendo obtidos dois braconĂdeos, Doryctobracon sp. e Opius bellus Gahan, dessa espĂ©cie. Este Ă© o primeiro registro de P. amapa como hospedeiro de moscas-das-frutas. C. cognatum Ă© o primeiro hospedeiro conhecido de A. hastata e os braconĂdeos sĂŁo tambĂ©m os primeiros registros de parasitĂłides dessa espĂ©cie.AgĂȘncia de Desenvolvimento da AmazĂŽnia and Secretaria de Estado da CiĂȘncia e Tecnologia do Amap
Primary resistance of HIV to antiretrovirals among individuals recently diagnosed at voluntary counselling and testing centres in the metropolitan region of Recife, Pernambuco
Determining the prevalence and type of antiretroviral (ARV) resistance among ARV-naĂŻve individuals is important to assess the potential responses of these individuals to first-line regimens. The prevalence of primary resistance and the occurrence of recent infections among individuals with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) were identified among recently diagnosed patients at five sexually transmitted disease/AIDS testing and counselling centres in the metropolitan region of Recife (RMR), Pernambuco, Brazil, between 2007-2009. One-hundred and eight samples were analysed using the CalypteÂź BED assay. Males predominated (56%), as did patients aged 31-50 years. Twenty-three percent presented evidence of a recent HIV infection. The median CD4+ T lymphocyte count was 408 cells/mmÂł and the median viral load was 3.683 copies/mL. The prevalence of primary resistance was 4.6% (confidence interval 95% = 1-8.2%) based on criteria that excluded common polymorphisms in accordance with the surveillance drug resistance mutation criteria. The prevalence of resistance to non-nucleoside reverse transcriptase, nucleoside/nucleotide reverse transcriptase and protease inhibitors were 3.8%, 1.5% and 0.8%, respectively. Fifty-seven percent of strains were from clade B, 37.7% were clade F and 3.1% were clade C; there were no statistically significant differences with respect to resistance between clades. Recent infection tended to be more common in men (p = 0.06) and in municipalities in the south of the RMR (JaboatĂŁo dos Guararapes and Cabo de Santo Agostinho) (p = 0.046). The high prevalence of recent infection and the high prevalence of non-B strains in this poor Brazilian region merit further attention.LaboratĂłrio Central de SaĂșde PĂșblica de Pernambuco Setor de VirologiaUniversidade Federal de Pernambuco Programa de PĂłs-Graduação em Medicina TropicalFiocruz Centro de Pesquisa Aggeu MagalhĂŁesCentro de Testagem e Aconselhamento Herbert de SouzaUniversidade Federal de SĂŁo Paulo (UNIFESP) LaboratĂłrio de RetrovirologiaUNIFESP, LaboratĂłrio de RetrovirologiaSciEL
Characterization of Contaminants from a Sanitized Milk Processing Plant
Milk processing lines offer a wide variety of microenvironments where a diversity of microorganisms can proliferate. We sampled crevices and junctions where, due to deficient reach by typical sanitizing procedures, bacteria can survive and establish biofilms. The sampling sites were the holding cell, cold storage tank, pasteurizer and storage tank - transfer pump junction. The culturable bacteria that were isolated after the sanitation procedure were predominantly Pseudomonas spp., Serratia spp, Staphylococcus sciuri and Stenotrophomonas maltophilia. We assayed several phenotypic characteristics such as the ability to secrete enzymes and siderophores, as well as the capacity of the strains to form biofilms that might contribute to their survival in a mixed species environment. The Pseudomonas spp. isolates were found to either produce proteases or lecithinases at high levels. Interestingly, protease production showed an inverse correlation with siderophore production. Furthermore, all of the Serratia spp. isolates were strong biofilm formers and spoilage enzymes producers. The organisms identified were not mere contaminants, but also producers of proteins with the potential to lower the quality and shelf-life of milk. In addition, we found that a considerable number of the Serratia and Pseudomonas spp. isolated from the pasteurizer were capable of secreting compounds with antimicrobial properties
The Fate of an Amazonian Savanna: Government Land-Use Planning Endangers Sustainable Development in AmapĂĄ, the Most Protected Brazilian State
Although AmapaÂŽ is the most protected Brazilian state, the same level of protection does not extend to its savannas. These
are currently suffering increased pressure from threats including large-scale agriculture, particularly the expansion of soybean
plantations. In September 2016, the Government of AmapaÂŽ presented a zoning proposal (Zoneamento Socioambiental do
Cerrado [ZSC]) that reserves most of the savannas for agricultural activities. Here, we outline how the methodology
employed is flawed because it does not include fauna surveys, evaluations of ecosystem services or an assessment of the
social importance of the savannas. The ZSC authors admit that, contrary to Brazilian legislation, the zoning was carried out
with the single intention of increasing agriculture production. Current knowledge indicates that AmapaÂŽâs savannas are rich in
biodiversity, including endemic and threatened species, and are also home to a rich culture of traditional populations. These
savannas are important providers of ecosystem services that, if intact, could represent around US$ 1.52 billion annually. We
hold that the ZSC should be reformulated, with fair participation of stakeholders, in accordance with Brazilâs legal requirements.
At least 30% of the savannas should be protected, local family farming should be supported, and the rights of
traditional peoples must now be assured through recognition of their land rights
The Fate of an Amazonian Savanna: Government Land-Use Planning Endangers Sustainable Development in AmapĂĄ, the Most Protected Brazilian State
Although AmapaÂŽ is the most protected Brazilian state, the same level of protection does not extend to its savannas. These
are currently suffering increased pressure from threats including large-scale agriculture, particularly the expansion of soybean
plantations. In September 2016, the Government of AmapaÂŽ presented a zoning proposal (Zoneamento Socioambiental do
Cerrado [ZSC]) that reserves most of the savannas for agricultural activities. Here, we outline how the methodology
employed is flawed because it does not include fauna surveys, evaluations of ecosystem services or an assessment of the
social importance of the savannas. The ZSC authors admit that, contrary to Brazilian legislation, the zoning was carried out
with the single intention of increasing agriculture production. Current knowledge indicates that AmapaÂŽâs savannas are rich in
biodiversity, including endemic and threatened species, and are also home to a rich culture of traditional populations. These
savannas are important providers of ecosystem services that, if intact, could represent around US$ 1.52 billion annually. We
hold that the ZSC should be reformulated, with fair participation of stakeholders, in accordance with Brazilâs legal requirements.
At least 30% of the savannas should be protected, local family farming should be supported, and the rights of
traditional peoples must now be assured through recognition of their land rights