G. Walker

Publications387
h-index88
Citations29,036
Highly Influential Citations1,679
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DNA Repair and Mutagenesis
DNA damage Mutations The reversal of base damage Base excision repair Nucleotide excision repair in prokaryotes Nucleotide excision repair in lower eukaryotes Nucleotide excision repair in mammalian… Expand
Mutagenesis and inducible responses to deoxyribonucleic acid damage in Escherichia coli.
  • G. Walker
  • Biology, Medicine
  • Microbiological reviews
  • 1 March 1984
INTRODUCTION............................................................ 61 PROCESSING OF DAMAGED DNA ............................................................ 61 SOS REGULATORY NETWORK… Expand
Eukaryotic Translesion Polymerases and Their Roles and Regulation in DNA Damage Tolerance
SUMMARY DNA repair and DNA damage tolerance machineries are crucial to overcome the vast array of DNA damage that a cell encounters during its lifetime. In this review, we summarize the current state… Expand
How rhizobial symbionts invade plants: the Sinorhizobium–Medicago model
Nitrogen-fixing rhizobial bacteria and leguminous plants have evolved complex signal exchange mechanisms that allow a specific bacterial species to induce its host plant to form invasion structures… Expand
Exopolysaccharide-deficient mutants of Rhizobium meliloti that form ineffective nodules.
By screening with the fluorescent stain Calcofluor, we have isolated 26 independent transposon Tn5 insertion mutants of Rhizobium meliloti that are deficient in the production of a known… Expand
A LuxR homolog controls production of symbiotically active extracellular polysaccharide II by Sinorhizobium meliloti.
Production of complex extracellular polysaccharides (EPSs) by the nitrogen-fixing soil bacterium Sinorhizobium meliloti is required for efficient invasion of root nodules on the host plant alfalfa.… Expand
Succinoglycan is required for initiation and elongation of infection threads during nodulation of alfalfa by Rhizobium meliloti.
Rhizobium meliloti Rm1021 must be able to synthesize succinoglycan in order to invade successfully the nodules which it elicits on alfalfa and to establish an effective nitrogen-fixing symbiosis.… Expand
Antibiotics induce redox-related physiological alterations as part of their lethality.
Deeper understanding of antibiotic-induced physiological responses is critical to identifying means for enhancing our current antibiotic arsenal. Bactericidal antibiotics with diverse targets have… Expand
Molecular determinants of a symbiotic chronic infection.
Rhizobial bacteria colonize legume roots for the purpose of biological nitrogen fixation. A complex series of events, coordinated by host and bacterial signal molecules, underlie the development of… Expand
A genetic basis for Pseudomonas aeruginosa biofilm antibiotic resistance
Biofilms are surface-attached microbial communities with characteristic architecture and phenotypic and biochemical properties distinct from their free-swimming, planktonic counterparts. One of the… Expand
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