title: Isolation and characterization of ACC deaminase gene from two plant growth-promoting rhizobacteria.
abstract: Lowering of plant ethylene by deamination of its immediate precursor 1-aminocyclopropane-1-carboxylate (ACC) is a key trait found in many rhizobacteria. We isolated and screened bacteria from the rhizosphere of wheat for their ACC-degrading ability. The ACC deaminase gene (acdS) isolated from two bacterial isolates through PCR amplification was cloned and sequenced. Nucleotide sequence alignment of these genes with previously reported genes of Pseudomonas sp. strain ACP and Enterobacter cloacae strain UW4 showed variation in their sequences. In the phylogenetic analysis, distinctness of these two genes was observed as a separate cluster. 16S rDNA sequencing of two isolates identified them to be Achromobacter sp. and Pseudomonas stutzeri.
authors.affiliation: Division of Microbiology, Indian Agricultural Research Institute, New Delhi, 110012, India.
authors.forename: Venkadasamy
authors.initials: V
authors.lastname: Govindasamy
authors.forename: Murugesan
authors.initials: M
authors.lastname: Senthilkumar
authors.forename: Kishore
authors.initials: K
authors.lastname: Gaikwad
authors.forename: Kannepalli
authors.initials: K
authors.lastname: Annapurna
mesh_terms: D042402:Achromobacter / Q000145:classification / Q000201:enzymology* / Q000235:genetics / Q000302:isolation & purification; D001483:Base Sequence; D019755:Carbon-Carbon Lyases / Q000737:chemistry / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism; D003001:Cloning, Molecular; D008969:Molecular Sequence Data; D010802:Phylogeny; D018517:Plant Roots / Q000254:growth & development / Q000382:microbiology*; D016133:Polymerase Chain Reaction; D044223:Pseudomonas stutzeri / Q000145:classification / Q000201:enzymology* / Q000235:genetics / Q000302:isolation & purification; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D014908:Triticum / Q000254:growth & development / Q000382:microbiology*
chemical_list: C033634:1-aminocyclopropane-1-carboxylate deaminase; D019755:Carbon-Carbon Lyases