Resistance Inducer Products
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Ação de produtos químico in vitro, em mudas e em campo sobre a mancha bacteriana (Xanthomonas perforans e X. gardneri) em tomate para processamento industrial / Chemical control of the bacterial spot in tomato for industrial processing: sensibility in isolated vitro and efficiency of products in seedlings and in field
A pouca disponibilidade de produtos eficazes tem propiciado a busca por alternativas de controle da mancha bacteriana do tomateiro. Sendo assim, este trabalho teve como objetivo avaliar uma gama de produtos químicos em testes in vitro, experimentos com mudas e em experimentos de campo. Foram estudados: acibenzolar-S-metil; cloretos de benzalcônio; fosfitos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2009
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2. Ação de produtos químico in vitro, em mudas e em campo sobre a mancha bacteriana (Xanthomonas perforans e X. gardneri) em tomate para processamento industrial / Chemical control of the bacterial spot in tomato for industrial processing: sensibility in isolated vitro and efficiency of products in seedlings and in field
The search of alternative products for tomato bacterial spot has been promoting by the lack of effectiveness registered by the traditional products available. The objective of this work was to evaluate a range of chemical products by in vitro tests, in experiments seedlings and field experiments. The products studied were: acibenzolar-S-methyl; benzalkonium
Publicado em: 2009
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3. Plant extracts and commercial products for the management of coffee rust and mechanisms of coffee defense against Cercospora leaf spot. / Extratos vegetais e produtos comerciais no manejo da ferrugem e nos mecanismos de defesa do cafeeiro à cercosporiose
The aim of this study was to evaluate the effect of plant extracts and commercial products against rust in a conventional farming system. Furthermore, to assess the defense mechanisms of coffee seedlings against Cercospora leaf spot. The rust experiment was conducted in a coffee field (Cultivar Rubi) with 10 year old at the campus of Federal University of La
Publicado em: 2008
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4. Some mercurial resistance plasmids from different incompatibility groups specify merR regulatory functions that both repress and induce the mer operon of plasmid R100.
Transcription of the mer genes of plasmid R100 is regulated by the product of the merR gene. The merR gene negatively regulates its own expression and also controls the transcription of the merTCA operon both negatively (in the absence of inducer) and positively (in the presence of inducer). We used transcriptional mer-lac fusions of R100-1 in complementatio
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5. Multicopy Tn10 tet plasmids confer sensitivity to induction of tet gene expression.
We inserted the Tn10 tetracycline resistance determinant (tet) into the multicopy plasmid pACYC177, and we examined the phenotype of Escherichia coli K-12 strains harboring these plasmids. In agreement with others, we find that Tn10 tet exhibits a negative gene dosage effect. Strains carrying multicopy Tn10 tet plasmids are 4- to 12-fold less resistant to te
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6. Genetic Diversity of the tet(M) Gene in Tetracycline-Resistant Clonal Lineages of Streptococcus pneumoniae
The aim of the present study was to examine the stability and evolution of tet(M)-mediated resistance to tetracyclines among members of different clonal lineages of Streptococcus pneumoniae. Thirty-two tetracycline-resistant isolates representing three national (Spanish serotype 14, Spanish serotype 15, and Polish serotype 23F) and one international (Spanish
American Society for Microbiology.
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7. Gene-Expression Patterns and Levels of Jasmonic Acid in Rice Treated with the Resistance Inducer 2,6-Dichloroisonicotinic Acid.
Acquired disease resistance can be induced in rice (Oryza sativa) by a number of synthetic or natural compounds, but the molecular mechanisms behind the phenomenon are poorly understood. One of the synthetic inducers of resistance, 2,6-dichloroisonicotinic acid (INA), efficiently protected rice leaves from infection by the rice blast fungus Magnaporthe grise
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8. Cloning and analysis of ermG, a new macrolide-lincosamide-streptogramin B resistance element from Bacillus sphaericus.
To analyze the regulation of a newly discovered macrolide-lincosamide-streptogramin B resistance element (ermG) found in a soil isolate of Bacillus sphaericus, we cloned this determinant and obtained its DNA sequence. Minicell analysis revealed that ermG specifies a 29,000-dalton protein, the synthesis of which is induced by erythromycin. S1 nuclease mapping
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9. Characterization of cotJ, a sigma E-controlled operon affecting the polypeptide composition of the coat of Bacillus subtilis spores.
The outermost protective structure found in endospores of Bacillus subtilis is a thick protein shell known as the coat, which makes a key contribution to the resistance properties of the mature spore and also plays a role in its interaction with compounds able to trigger germination. The coat is organized as a lamellar inner layer and an electron-dense outer