Alkaline cyanide biodegradation by Pseudomonas pseudoalcaligenes CECT5344. (1st February 2005)

• Record Type: Journal Article
• Authors: Luque-Almagro, V.M.; Blasco, R.; Huertas, M.J.; Martínez-Luque, M.; Moreno-Vivián, C.; Castillo, F.; Roldán, M.D.
• Is Part Of: Biochemical Society transactions. Volume 33:Number 1(2005)
• Page Start: 168
• Page End: 169
• Publication Date: 2005-02-01
• Subjects: alkaline biodegradation -- β-cyanoalanine -- cyanase -- cyanate -- cyanide -- nitrilase; Biochemistry -- Congresses; 572
• DOI: 10.1042/BST0330168
• Languages: English
• ISSNs: 0300-5127

Abstract

Abstract : Pseudomonas pseudoalcaligenes CECT5344 uses cyanide, cyanate, β-cyanoalanine, and other cyanoderivatives as nitrogen sources under alkaline conditions, which prevents volatile HCN (p K a 9.2) formation. The cyanide consumed by this strain is stoichiometrically converted into ammonium. In addition, this bacterium grows with the heavy metal, cyanide-containing waste water generated by the jewellery industry, and is also a cyanide-resistant strain which induces an alternative oxidase and a siderophore-based mechanism for iron acquisition in the presence of cyanide. The detection of cyanase and β-cyanoalanine nitrilase activities in cyanide-induced cells suggests their implication in the cyanide degradation pathway.