Defence Genes Expression
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Biphasic haustorial differentiation of coffee rust (Hemileia vastatrix race II) associated with defense responses in resistant and susceptible coffee cultivars.
The objective of this study was to assess whether defence responses in coffee (Coffea arabica) were linked to a specific developmental stage of the rust fungus Hemileia vastatrix. Histological observations in compatible and incompatible highyielding Brazilian coffee cultivars showed that the fungus produced ?pioneer? haustoria in adjacent and subsidiary stom
In.: PLANT PATHOLOGY. Publicado em: 2011
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2. Biphasic haustorial differentiation of coffee rust (Hemileia vastatrix race II) associated with defense responses in resistant and susceptible coffee cultivars.
The objective of this study was to assess whether defence responses in coffee (Coffea arabica) were linked to a specific developmental stage of the rust fungus Hemileia vastatrix. Histological observations in compatible and incompatible highyielding Brazilian coffee cultivars showed that the fungus produced ?pioneer? haustoria in adjacent and subsidiary stom
In.: PLANT PATHOLOGY. Publicado em: 2011
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3. Identification and characterization of genes differentially expressed during arbuscular mycorrhiza development in sugarcane / Identificação e caracterização de genes com expressão diferencial durante o desenvolvimento de micorrizas arbusculares em cana-de-açúcar
Arbuscular mycorrhizae (AM) are mutualistic symbiotic associations between fungi of the order Glomales and most of the terrestrial plants. The molecular mechanisms regulating AM development and efficiency are not well understood so that agricultural large scale application is so difficult. Although so many approaches are being used to the identification of d
Publicado em: 2008
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4. Expressão local de interferon alfa, dos receptores de interferon alfa (IFNAR) e da enzima 25Oligoadenilato sintetase em pacientes com neoplasia intraepitelial cervical
Interferor-alfa (IFN-α) is a glicoprotein belonged to a family of cytokines which participate in the control and cell replication in the defence of hostess against strange organisms, as vírus or bacteria. Although the IFN-α has been known by antiviral property, numerous investigations afterward showed that the IFN is involved on regulation cell gr
Publicado em: 2008
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5. Prospecção e caracterização de genes associados ao processo de indução floral em cana-de-açúcar
The northeastern region is responsible to 14.32% of sugarcane national production. This lowered contribution is due to edaphoclimatic condition. Flowering is a vital process to plant which consumes lots of energy and it culminates in a process called isoporization. This one can give in a decreasing of 60% on alcohol and water production. It may consider that
Publicado em: 2007
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6. 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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7. The imd gene is required for local Cecropin expression in Drosophila barrier epithelia
Surfaces of higher eukaryotes are normally covered with microorganisms but are usually not infected by them. Innate immunity and the expression of gene-encoded antimicrobial peptides play important roles in the first line of defence in higher animals. The immune response in Drosophila promotes systemic expression of antimicrobial peptides in response to micr
Oxford University Press.
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8. Direct interaction between the Arabidopsis disease resistance signaling proteins, EDS1 and PAD4
The Arabidopsis EDS1 and PAD4 genes encode lipase-like proteins that function in resistance (R) gene-mediated and basal plant disease resistance. Phenotypic analysis of eds1 and pad4 null mutants shows that EDS1 and PAD4 are required for resistance conditioned by the same spectrum of R genes but fulfil distinct roles within the defence pathway. EDS1 is ess
Oxford University Press.
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9. Cloning of the two chalcone flavanone isomerase genes from Petunia hybrida: coordinate, light-regulated and differential expression of flavonoid genes.
In this paper we report the isolation of cDNA clones encoding the flavonoid-biosynthetic enzyme chalcone flavanone isomerase (CHI) from Petunia hybrida. A nearly full size cDNA clone, isolated from a corolla-specific expression library, was characterized by sequence analysis. Using this CHI cDNA and the previously cloned flavonoid-specific chalcone synthase
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10. Mammalian genes expressed in Drosophila: a transgenic model for the study of mechanisms of chemical mutagenesis and metabolism.
Mammalian cytochrome P450s provide our first line of defence against the toxic effects of environmental chemicals. Ironically these enzymes also convert some compounds to their ultimate toxic or mutagenic species. Our knowledge of these mammalian enzymes and the role they play in chemical toxicity and mutagenesis has stemmed mostly from in vitro studies. In