Insect Adaptation
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. History of domestication and spread of Aedes aegypti - A Review
The adaptation of insect vectors of human diseases to breed in human habitats (domestication) is one of the most important phenomena in medical entomology. Considerable data are available on the vector mosquito Aedes aegypti in this regard and here we integrate the available information including genetics, behaviour, morphology, ecology and biogeography of t
Mem. Inst. Oswaldo Cruz. Publicado em: 2013
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2. Carunchos VS inseticidas: individualidade importa? / Maize weevils VS inseticides: does individuality matters?
Behavior is the expression of an organism s interactions with the environmental stimulus. Even though behavioral studies are done in an individual level, the conclusions are drawn for populations. The importance of an individual s behavior have been studied on several animal groups, a few examples are: primates, mammals and insects. From these results, the c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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3. Proteínas quinases envolvidas na regulação do estresse em Trypanosoma. / Protein kinases involved in stress regulation in Trypanosoma.
Protozoa of the genus Trypanosoma have a complex life cycle alternating between vertebrate and invertebrate hosts. The adaptation to different environmental conditions requires rapid changes in gene expression to fill up the morphological and metabolic requirements for survival. Very little is known about the mechanisms that control these changes and the sig
Publicado em: 2010
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4. Impairment of cell division of Trypanosoma cruzi epimastigotes
The mechanisms that facilitate the adaptation of Trypanosoma cruzi to two distinct hosts, insect and vertebrate, are poorly understood, in part due to the limited ability to perform gene disruption studies by homologous recombination. This report describes a developmentally-defective phenotype that resulted from integration of a drug marker adjacent to the G
Memórias do Instituto Oswaldo Cruz. Publicado em: 2007-02
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5. Efeito de um inibidor de proteinase serinica sobre o desenvolvimento e atividade enzimatica de Heliothis virescens (Lepidopter: Noctuidae) / Effect of a trypsin inhibitor on the development and enzymatic activity of Heliothis virescens (Lepidoptera: Noctuidae)
Proteinase inhibitor proteins (PIs) are one of the defensive chemicals produced by plants against pests and pathogens. PIs are polypeptides that are able to bind to insect midgut proteolytic enzymes, rendering them inactive by competitive inhibition. This process leads to a limitation of essential amino acids in protein synthesis, and thus, to reduction in g
Publicado em: 2007
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6. Caracterização do mecanismo adaptativo de Spodoptera frugiperda aos inibidores de proteinase de plantas / Characterization of the adaptive mechanism of Spodoptera frugiperda to plant proteinase inhibitors
A existência de uma família gênica diversa de serino proteinases em Lepidóptera sugere que essas proteinases desempenham um papel importante na adaptação desses insetos à presença de inibidores de proteinases vegetais. Essas enzimas têm se revelado estarem envolvidas no processo digestivo de larvas de insetos. Larvas de Spodoptera frugiperda foram a
Publicado em: 2007
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7. Biochemistry answer of caterpillars of Thyrinteina leucoceraea (Lepidoptera: Geometridae), fed with the serine-proteinases inhibitor benzamidine / Resposta bioquímica de lagartas de Thyrinteina leucoceraea (Lepidoptera: Geometridae), submetidas ao inibidor de serinoproteases benzamidina
The insects may cause considerable losses to plants, necessitating the control of these pests. However, some insects inhabit plants without causing considerable losses. For example, Thyrinteina leucoceraea, native insect, inhabit guava plants, native Myrtaceae harbor, and dont need to be controled. The Eucalyptus ssp., however, is a novel Myrtaceae host in B
Publicado em: 2006
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8. Visitantes florais de Erythrina speciosa Andr. (Leguminosae)
Inspite of Etythrina species exhibit morphologic attributes for adaptation to pollination by nectarivorous birds mentioned in the literature, E. speciosa is pollinated by lots of bees (Apinae and Meliponinae) which show a great urban occurrence. Systems of E. speciosa floral reproduction, fenology, diversity, frequency and constancy of insects visiting at di
Revista Brasileira de Zoologia. Publicado em: 2000-06
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9. Reversing insect adaptation to transgenic insecticidal plants.
The refuge-high-dose strategy for delaying insect adaptation to transgenic plants produces non-transgenic plants that enable survival of susceptible individuals. Previous theoretical work has suggested three requirements for success of the refuge-high-dose strategy: a low initial frequency of the resistance allele, extensive mating between resistant and susc
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10. Regulation and Adaptation of Glucose Metabolism of the Parasitic Protist Leishmania donovani at the Enzyme and mRNA Levels
Adaptation of the glucose metabolism of Leishmania donovani promastigotes (insect stage) was investigated by simultaneously measuring metabolic rates, enzyme activities, message levels, and cellular parameters under various conditions. Chemostats were used to adapt cells to different growth rates with growth rate-limiting or excess glucose concentrations. L.
American Society for Microbiology.
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11. Electroporation, an alternative to biolistics for transfection of Bombyx mori embryos and larval tissues
There are few powerful techniques available to transfect insect tissues. We previously used biolistics to transfect Bombyx mori embryos, and larval and pupal tissues (Thomas J-L et al. 2001. Journal of Insect Science 1/9, Kravariti L et al. 2001. Insect Biochemistry and Molecular Biology 31: 473–479). As the main limitation was the irregularity in results
University of Arizona Library.
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12. Vesicular Stomatitis Virus Evolution during Alternation between Persistent Infection in Insect Cells and Acute Infection in Mammalian Cells Is Dominated by the Persistence Phase
Vesicular stomatitis virus has the potential for very rapid evolution in the laboratory, but like many other arboviruses, it evolves at a relatively slow rate in the natural environment. Previous work showed that alternating replication in different cell types does not promote stasis. In order to determine whether other factors promote stasis, we compared th
American Society for Microbiology.