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Isolation and characterization of heterotrophic nitrification–aerobic denitrification and sulphur-oxidizing bacterium Paracoccus saliphilus strain SPUM from coastal shrimp ponds

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Title Isolation and characterization of heterotrophic nitrification–aerobic denitrification and sulphur-oxidizing bacterium Paracoccus saliphilus strain SPUM from coastal shrimp ponds
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Creator Y. D. Jaffer
H. Sanath Kumar
R. Vinothkumar
A. B. Irfan
N. M. Ishfaq
Parvaiz Ahmad Ganie
Raja Adil Hussain Bhat
A. Vennila
 
Subject Paracoccus saliphilus . Nitrification/denitrification . Sulphate thiolesterase/sulphate thiohydrolase . Coastal shrimp ponds
 
Description Not Available
The Paracoccus sp. is one of the best-characterized prokaryote that has served as a model
organism to study the dentrification and sulphur oxidation processes. However, its ability of
dentrification and sulphur oxidation in coastal shrimp ponds is not reported much. In the
present work, the Gram-negative, neutrophilic, facultatively lithoautotrophic bacterium
Paracoccus saliphilus strain SPUM isolated from coastal shrimp ponds of Urran, Maharashtra,
was studied for its efficiency of simultaneous heterotrophic nitrification–aerobic denitrification
and sulphur oxidation processes. The maximum removal rate of nitrite and nitrate was 11.22 ±
0.31 and 14.17 ± 0.31 mg of NO3-N/l respectively after 24 h of incubation, while the sulphatesulphur
production observed was 190 ± 4.3 mg l−1 with a change in pH from 8.0 to 7.4 ± 0.08
after 12 days of incubation. The strain was characterized using universal 16S rRNA gene
primers revealing high similarity (> 99%) with Paracoccus saliphilus belonging to α-
proteobacteria. The isolate could express sulphate thiolesterase/sulphate thiohydrolase, soxB
gene which is essential for sulphur oxidation. From all the results, it has been found that the
strain SPUM could play a major role in simultaneous aerobic nitrification/denitrification and
sulphur oxidation processes to overcome the toxicity of nitrogenous and sulphur-reducing
compounds respectively in coastal aquaculture and wastewater systems.
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Date 2019-12-12T04:09:43Z
2019-12-12T04:09:43Z
2019-06-08
 
Type Article
 
Identifier Not Available
0967-6120
http://krishi.icar.gov.in/jspui/handle/123456789/28971
 
Language English
 
Relation Not Available;
 
Publisher Springer