Analysis of preference for carbon source utilization among three strains of aromatic compounds degrading Pseudomonas

FEMS Microbiology Letters
M KarishmaPrashant S Phale

Abstract

Soil isolates Pseudomonas putida CSV86, Pseudomonas aeruginosa PP4 and Pseudomonas sp. C5pp degrade naphthalene, phthalate isomers and carbaryl, respectively. Strain CSV86 displayed a diauxic growth pattern on phenylpropanoid compounds (veratraldehyde, ferulic acid, vanillin or vanillic acid) plus glucose with a distinct second lag-phase. The glucose concentration in the medium remained constant with higher cell respiration rates on aromatics and maximum protocatechuate 3,4-dioxygenase activity in the first log-phase, which gradually decreased in the second log-phase with concomitant depletion of the glucose. In strains PP4 and C5pp, growth profile and metabolic studies suggest that glucose is utilized in the first log-phase with the repression of utilization of aromatics (phthalate or carbaryl). All three strains utilize benzoate via the catechol 'ortho' ring-cleavage pathway. On benzoate plus glucose, strain CSV86 showed preference for benzoate over glucose in contrast to strains PP4 and C5pp. Additionally, organic acids like succinate were preferred over aromatics in strains PP4 and C5pp, whereas strain CSV86 co-metabolizes them. Preferential utilization of aromatics over glucose and co-metabolism of organic acids and aromat...Continue Reading

References

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May 15, 2004·Environmental Microbiology·Jeremy A RentzJerald L Schnoor
Oct 6, 2005·Applied and Environmental Microbiology·Vandana P Swetha, Prashant S Phale
Mar 7, 2006·Applied and Environmental Microbiology·Aditya BasuPrashant S Phale
Apr 12, 2006·Applied Microbiology and Biotechnology·C Vamsee-KrishnaP S Phale
Jun 1, 2006·FEMS Microbiology Letters·Aditya Basu, Prashant S Phale
Jan 7, 2011·Applied Microbiology and Biotechnology·Xiao-Ying LuHerbert Han-Ping Fang
Mar 8, 2013·Genome Announcements·Prashant S PhaleHemant J Purohit
Jan 30, 2014·PloS One·Vasundhara PaliwalHemant J Purohit

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Citations

Jun 11, 2016·Genome Announcements·Vikas D TrivediPrashant S Phale
Jun 8, 2017·FEMS Microbiology Letters·Alpa ChoudharyPrashant S Phale
Feb 12, 2017·Applied and Environmental Microbiology·Karishma Mohan, Prashant S Phale

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