ABSTRACT
The bacterial spot of tomato, caused by
Subject(s)
Disease Resistance/drug effects , Fungicides, Industrial/pharmacology , Solanum lycopersicum/microbiology , Plant Diseases/microbiology , Xanthomonas/growth & development , Catechol Oxidase/metabolism , /metabolism , Solanum lycopersicum/enzymology , Solanum lycopersicum/immunology , Peptide Hydrolases/metabolism , Peroxidase/metabolism , Phenylalanine Ammonia-Lyase/metabolism , Plant Diseases/immunology , Xanthomonas/drug effectsABSTRACT
Leaf blight disease of rice (Oryza sativa) is caused by the bacterium Xanthomonas oryzae pv. oryzae. Phenol (1 to 4 mM) induced changes in protein profiles of X. o. pv. oryzae and a stress protein with a molecular mass of 69,000 appeared. HPLC analysis indicated occurrence of amino acids such as asparagine, alanine, methionine and cystine in phenol treated cells. Proton NMR analysis also revealed variation on the presence of amino acids in the cells treated with phenol.
Subject(s)
Amino Acids/metabolism , Bacterial Proteins/metabolism , Chromatography, High Pressure Liquid , Electrophoresis, Polyacrylamide Gel , Heat-Shock Proteins/metabolism , Magnetic Resonance Spectroscopy , Molecular Weight , Oryza/microbiology , Phenol/pharmacology , Xanthomonas/drug effectsABSTRACT
Effect of phenol on total lipid and fatty acid composition of Xanthomonas oryzae pv. oryzae, the causal agent of bacterial blight of rice (Oryzae sativa) was studied. Lipid level was low in phenol treated cells. Number of fatty acids detected from phenol treated cells was more than those found in untreated cells as revealed by Gas chromatography. Pentadecanoic acid (C15:0), linolenic acid (C18:3) and behenic acid (C22:0) were present only in the treated cells. Palmitic acid which is usually found in bacteria was not detected both in control and treated cells.
Subject(s)
Electrophoresis, Polyacrylamide Gel , Fatty Acids/metabolism , Lipid Metabolism , Magnetic Resonance Spectroscopy , Oryza/microbiology , Phenol/pharmacology , Xanthomonas/drug effectsABSTRACT
During 1st week of post-operative period, a 28 year old female patient operated for left cerebellopontine angle tumor, continued to get fever. Lumbar puncture did not reveal any organisms. She responded to ciprofloxacin. Two months later, she was readmitted with signs and symptoms of meningitis. The CSF tapped on lumbar puncture grew Xanthomonas maltophilia, Gram negative bacilli, sensitive to various antibiotics, ciprofloxacin being one of them. The patient was given ciprofloxacin for 3 weeks. On follow up, a year later she was found to be asymptomatic.