Results 211 to 220 of about 1,162,589 (269)
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Current Opinion in Microbiology, 1999
Integrons are the primary mechanism for antibiotic-resistance gene capture and dissemination among Gram-negative bacteria. The recent finding of super-integron structures in the genomes of several bacterial species has expanded their role in genome evolution and suggests that they are the source of mobile multi-resistant integrons.
D A, Rowe-Magnus, D, Mazel
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Integrons are the primary mechanism for antibiotic-resistance gene capture and dissemination among Gram-negative bacteria. The recent finding of super-integron structures in the genomes of several bacterial species has expanded their role in genome evolution and suggests that they are the source of mobile multi-resistant integrons.
D A, Rowe-Magnus, D, Mazel
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Resistance and the jumping gene
BioEssays, 2005AbstractTransposons are well‐known architects of genetic change but their role in insecticide resistance has, until recently, only been speculated upon.1 Transposon insertion, or transposon‐mediated transposition, could alter either metabolic enzymes capable of degrading pesticides or could change the functionality of insecticide targets.
Ffrench-Constant, Richard +2 more
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Resistance gene analogs in barley and their relationship to rust resistance genes
Genome, 2001Regions of amino acid conservation in the NBS domain of NBS-LRR resistance proteins facilitated the PCR isolation of eight resistance gene analog (RGA) sequences from genomic DNA of rice, barley, and Aegilops tauschii. These clones and other RGAs previously isolated from maize, rice, and wheat were assigned to 13 classes by DNA-sequence comparison and ...
Collins, N. +4 more
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Current Opinion in Plant Biology, 1998
Plant resistance genes are highly polymorphic and have diverse recognition specificities. These genes often occur as members of clustered gene families that have evolved through duplication and diversification. Regions of nucleotides conserved between family members and flanking sequences facilitate equal or unequal recombination events.
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Plant resistance genes are highly polymorphic and have diverse recognition specificities. These genes often occur as members of clustered gene families that have evolved through duplication and diversification. Regions of nucleotides conserved between family members and flanking sequences facilitate equal or unequal recombination events.
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Nonhost resistance genes and race-specific resistance
Trends in Microbiology, 1993Apart from physical barriers, plants have two major types of defense against potential pathogens. In 'race-specific' resistance, plants match single mendelian resistance genes with the 'avirulence' genes possessed by races of a pathogen. Plants also employ the more complex and evolutionarily more robust system of 'nonhost resistance' against a broad ...
L A, Hadwiger, D E, Culley
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Co-resistance: an opportunity for the bacteria and resistance genes
Current Opinion in Pharmacology, 2011Co-resistance involves transfer of several genes into the same bacteria and/or the acquisition of mutations in different genetic loci affecting different antimicrobials whereas pleiotropic resistance implies the same genetic event affecting several antimicrobials.
Canton, R
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Gene Amplification and Insecticide Resistance
Annual Review of Entomology, 1991Recapitulation des travaux portant sur le mecanisme de resistance des insectes face aux substances toxiques, base sur l'amplification des genes de resistance.
A L, Devonshire, L M, Field
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Evolving disease resistance genes
Current Opinion in Plant Biology, 2005Defenses against most specialized plant pathogens are often initiated by a plant disease resistance gene. Plant genomes encode several classes of genes that can function as resistance genes. Many of the mechanisms that drive the molecular evolution of these genes are now becoming clear.
Blake C, Meyers +2 more
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Plant nematode resistance genes
Current Opinion in Plant Biology, 1999Root-knot and cyst nematodes cause severe damage to crops throughout the world. Genes conferring resistance against nematodes have been identified in many plant species and several of these have been, or soon will be, cloned. Nematode biotypes that can infect resistant plants have been identified.
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Antibiotic Resistance in the Patient With Cancer: Escalating Challenges and Paths Forward
Ca-A Cancer Journal for Clinicians, 2021Amila K Nanayakkara, David E Greenberg
exaly