Klebsiella pneumoniae 342

Names Klebsiella pneumoniae 342
Accession numbers NC_011281, NC_011282, NC_011283
Background Bacteria of the genus Klebsiella are widely distributed in nature, in the soil and in water. They are also part of the normal flora of the intestinal tract, but usually in low numbers compared with E. coli. Klebsiella, especially strains of the species K. pneumonia, are opportunistic pathogens that can cause pneumonia, urinary tract infections, and bacteremia. In recent years there has been an increase in Klebsiella infections, especially in hospitals and due to multiple-antibiotic resistant strains. The most striking difference between most strains of Klebsiella and its close relatives E. coli and Salmonella is that Klebsiella cells have a thick coat of slime or extracellular polysaccharide which is called a "capsule". The capsule protects the cells from dessication, and may also protect them from phagocytosis when they are in an animal host. Surprisingly, many strains of Klebsiella can fix nitrogen, i.e., they can reduce atmospheric nitrogen to ammonia and amino acids.Strain 342 was isolated from the interior of nitrogen-efficient maize plants whilst looking for nitrogen-fixing endophytes to reduce the amount of nitrogen fertilizers. It can also colonize and provide a small amount of fixed nitrogen to wheat under greenhouse conditions in addition to colonizing the interior of a wide variety of other host plants (adapted from PubMed 18654632). (HAMAP: KLEP3)
Strain 342
Complete Yes
Sequencing centre (05-MAR-2008) J. Craig Venter Institute, 9712 Medical Center Dr, Rockville, MD 20850, USA
(24-SEP-2008) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method NA
Isolation site interior of nitrogen-efficient maize plants
Isolation country NA
Number of replicons 3
Gram staining properties Negative
Shape Bacilli
Mobility Yes
Flagellar presence No
Number of membranes 2
Oxygen requirements Facultative
Optimal temperature NA
Temperature range Mesophilic
Habitat HostAssociated
Biotic relationship Symbiotic
Host name Zea mays
Cell arrangement Chains, Pairs, Singles
Sporulation NA
Metabolism Nitrogen fixation
Energy source NA
Diseases NA
Pathogenicity No
Glycolysis / Gluconeogenesis
Citrate cycle (TCA cycle)
Pentose phosphate pathway
Pentose and glucuronate interconversions
Fructose and mannose metabolism
Galactose metabolism
Ascorbate and aldarate metabolism
Fatty acid biosynthesis
Fatty acid metabolism
Synthesis and degradation of ketone bodies
Ubiquinone and other terpenoid-quinone biosynthesis
Purine metabolism
Pyrimidine metabolism
Alanine, aspartate and glutamate metabolism
Glycine, serine and threonine metabolism
Cysteine and methionine metabolism
Valine, leucine and isoleucine degradation
Valine, leucine and isoleucine biosynthesis
Lysine biosynthesis
Arginine and proline metabolism
Histidine metabolism
Phenylalanine metabolism
Benzoate degradation
Fluorobenzoate degradation
Phenylalanine, tyrosine and tryptophan biosynthesis
beta-Alanine metabolism
Selenocompound metabolism
D-Glutamine and D-glutamate metabolism
D-Alanine metabolism
Glutathione metabolism
Starch and sucrose metabolism
Amino sugar and nucleotide sugar metabolism
Streptomycin biosynthesis
Lipopolysaccharide biosynthesis
Peptidoglycan biosynthesis
Glycerolipid metabolism
Glycerophospholipid metabolism
Pyruvate metabolism
Xylene degradation
Glyoxylate and dicarboxylate metabolism
Propanoate metabolism
Butanoate metabolism
C5-Branched dibasic acid metabolism
One carbon pool by folate
Thiamine metabolism
Riboflavin metabolism
Vitamin B6 metabolism
Nicotinate and nicotinamide metabolism
Pantothenate and CoA biosynthesis
Biotin metabolism
Lipoic acid metabolism
Folate biosynthesis
Porphyrin and chlorophyll metabolism
Terpenoid backbone biosynthesis
Nitrogen metabolism
Sulfur metabolism
Caprolactam degradation
Aminoacyl-tRNA biosynthesis