Defence Strategies
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Ascorbate peroxidase overexpression protects Leishmania braziliensis against trivalent antimony effects
Ascorbate peroxidase (APX) is a redox enzyme of the trypanothione pathway that converts hydrogen peroxide (H2O2) into water molecules. In the present study, the APX gene was overexpressed in Leishmania braziliensis to investigate its contribution to the trivalent antimony (SbIII)-resistance phenotype. Western blot results demonstrated that APX-overexpressing
Mem. Inst. Oswaldo Cruz. Publicado em: 14/11/2018
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2. The Effects of Different Amount of Protein and Vitamin e Supplementation in Rations on Lipid and Antioxidant Metabolism of Broilers Exposed to Heat Stress
ABSTRACT Heat stress, causes economic losses and has negative effects on both broiler husbandry and animal welfare. Nutritional strategies are applied for minimizing the negative effects of heat stress. In the present study, at the finishing period (24-39 days of age) of heat stress, the effects of diet involving 21% and 19% proteins and vitamin E on lipid m
Rev. Bras. Cienc. Avic.. Publicado em: 2017-06
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3. Bula da glândula metapleural de formigas cortadeiras: inferências quanto à defesa antimicrobiana / Bulla of the metapleural glands of leafcutter ants: Inferences as the antimicrobial defences
Leafcutter ants live in a world of complex interactions, the most notable being their cultivation of a mutualistic fungus on vegetable subtrates. These ants, and their mutualistic fungus gardens, are at risk from attack by parasitic microorganisms. To defend themselves and their mutualist, they have antimicrobial defences, such as substances secreted from th
Publicado em: 2008
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4. O posicionamento da UDN sobre o projeto de reforma agrária do governo João Goulart (1963-1964): estratégias de silenciamento da polifonia enunciativa / The simulacrum built by the National Democratic Party (UDN) against the discourse of the Government of Goulart (1963-1964) about the agrarian reform: the argumentative strategies used by the discourse of UDN
In the early 60s, the National Congress witnessed one of the most instigated debates of its political history: on the agenda, the reforms proposed by the Government of João Goulart, especially the agrarian reform. As this reform put some interests in risk, it was seen with extreme hostility by the majority of the Representatives of the opposition parties -
Publicado em: 2008
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5. A Human Rights Watch: fomas de atuação das organizações não governamentais transnacionais
The transnational nature of phenomena as human rights and the environment consolidated action spaces for civil society agents and, specifically, transnational non-governmental organizations which were organized to attend the demands from the state area and the international organizations; besides rising local problems to an international sphere. As to human
Publicado em: 2006
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6. Biologia e ecologia de Pleuroptya silicalis (Lepidoptera: Crambidae) e Urbanus esmeraldus (Lepidoptera: Hesperiidae): taticas defensivas e interações com formigas em arbustos de Urera baccifera (Urticaceae) / Biology and ecology of Pleuroptya silicalis (Lepidoptera: Crambidae) and Urbanus esmeraldus (Lepidoptera: Hesperiidae): defence tactics and interactions with ants on shrubs of Urera baccifera (Urticaceae)
1. This work investigates the biology and behaviour of two lepidopteran species that feed on the nettle Urera baccifera (Urticaceae). The plant is visited by 22 ant species, which are attracted by the nettle s fleshy fruits and pearl bodies. Larvae of both species build leaf shelters: Pleuroptya silicalis (Crambidae: Pyraustinae) makes leaf rolls, and Urbanu
Publicado em: 2006
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7. Biology and ecology of Pleuroptya silicalis (Lepidoptera: Crambidae) and Urbanus esmeraldus (Lepidoptera: Hesperiidae): defence tactics and interactions with ants on shrubs of Urera baccifera (Urticaceae) / Biologia e ecologia de Pleuroptya silicalis (Lepidoptera: Crambidae) e Urbanus esmeraldus (Lepidoptera: Hesperiidae): taticas defensivas e interações com formigas em arbustos de Urera baccifera (Urticaceae)
1. O presente trabalho investiga aspectos comportamentais e de história natural de duas espécies de lepidópteros que se alimentam de Urera baccifera (Urticaceae), uma planta visitada por 22 espécies de formigas. Ambas as espécies, Pleuroptya silicalis (Lepidoptera: Crambidae) e Urbanus esmeraldus (Lepidoptera: Hesperiidae), constróem abrigos foliares e
Publicado em: 2006
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8. Defence genes in Citrus sunki and Poncirus trifoliata: expression constitutive and induced by Phytophthora parasitica. / Genes de defesa de Citrus sunki e Poncirus trifoliata: expressÃo constitutiva e induzida por Phytophthora parasitica
Citrus gummosis, caused mainly by Phytophthora parasitica, is one of the most important citrus diseases affecting all production phases. The use of genetic resistance is the best strategy for controlling P. parasitica having a lower impact on the environment. A better understanding of the molecular mechanisms involved in the interaction citrus-Phytophthora s
Publicado em: 2005
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9. Política Antitruste: Aspectos relevantes para o caso Brasileiro
This work intends to show some aspects of antitrust policy that are relevant to the Brazilian case. For this purpose, it has five parts. Chapter I ¿ Introduction, as the title suggests, simultaneously introduces and emphasizes what will be shown in the next chapters. Chapter II ¿ General view or understanding the antitrust gives a comprehensive view of the
Publicado em: 2003
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10. Specific cleavage of hyper-edited dsRNAs
Extended double-stranded DNA (dsRNA) duplexes can be hyper-edited by adenosine deaminases that act on RNA (ADARs). Long uninterrupted dsRNA is relatively uncommon in cells, and is frequently associated with infection by DNA or RNA viruses. Moreover, extensive adenosine to inosine editing has been reported for various viruses. A number of cellular antiviral d
Oxford University Press.
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11. Coevolution in host-parasite systems: behavioural strategies of slave-making ants and their hosts.
Recently, avian brood parasites and their hosts have emerged as model systems for the study of host-parasite coevolution. However, empirical studies of the highly analogous social parasites, which use the workers of another eusocial species to raise their own young, have never explicitly examined the dynamics of these systems from a coevolutionary perspectiv