NDLI: Biodegradation of para-nitrophenol by Citricoccus nitrophenolicus strain PNP1T at high pH

Content Provider	Springer Nature Link
Author	Nielsen, Marie Bank Ingvorsen, Kjeld
Copyright Year	2012
Abstract	A gram-positive bacterium Citricoccus nitrophenolicus (strain PNP1T, DSM 23311T, CCUG 59571T) isolated from a waste water treatment plant was capable of effectively degrading p-nitrophenol (pNP) as a source of carbon, nitrogen and energy for growth. Degradation of pNP required oxygen and resulted in the stoichiometric release of nitrite. Strain PNP1T also degraded 4-chlorophenol, phenol and salicylate. pNP was degraded at pH values between 6.8 and 10.0 and at temperatures between 15–32 °C. pNP at concentrations up to 150 mg L−1 were degraded during growth in media at pH ≤ 10, whereas 200 mg L−1 was completely inhibitory to growth. When incubated in an NH4Cl-free medium (pH 10) containing both pNP and acetate, pNP is degraded with concomitant release of nitrite which was subsequently assimilated during acetate degradation. Intact cells of strain PNP1T suspended in NaHCO3/Na2CO3 buffer were able to continuously degrade 200 mg L−1 pNP over a 40 day period at pH 10.
Starting Page	79
Ending Page	87
Page Count	9
File Format	PDF
ISSN	09239820
Journal	Biodegradation
Volume Number	24
Issue Number	1
e-ISSN	15729729
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-06-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	p-Nitrophenol Biodegradation Citricoccus nitrophenolicus Microbiology Soil Science & Conservation Geochemistry Terrestrial Pollution Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Waste Management/Waste Technology
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Environmental Engineering Bioengineering Microbiology

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