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Nitrification potential of Achromobacter xylosoxidans isolated from freshwater finfish farms of Kerala, India

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Title Nitrification potential of Achromobacter xylosoxidans isolated from freshwater finfish farms of Kerala, India
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Creator Basha KA*, Joseph T, Lalitha KV, Prasad KP, D. Vineetha, G. Rathore, Gayatri Tripati
 
Subject Sediment, PCR, 16SrDNA, Achromobacter xylosoxidans, sodium pyruvate, Hetertrophic nitrification
 
Description Not Available
A heterotrophic strain ACM-1, isolated from Pangasius spp fish farms showed an ability
to convert ammonium to nitrate under aerobic conditions. Based on the molecular
phylogenetic analysis 16S rRNA gene sequence ACM-1 matched similarity to
Achromobacter xylosoxidans (100%). ACM-1 showed amplification for Betaproteobacterial 16S AOB gene (465 bp) confirming the characteristic feature of ammonia oxidation. Sodium pyruvate (1%) was confirmed as the probable carbon source for the luxurious growth of Achromobacter xylosoxidans among the six carbon sources tested. At 30oC, 5% preculture and 120 rpm in shaker, ACM-1 could able to remove 100% ammonium within 36h. The ammonium removal rate was reported to be 1.3 NH4 + -N mg L -1 h -1 at 30oC. The rate of ammonium removal at different temperature (20oC, 25oC, 37oC) ranged between 0.9 to1.33 NH4 + -N mg L-1 h -1 . The nitrite produced during this experiment remained at constant rate and nitrate concentration increased after the initial hours of experiment. Therefore, the results demonstrate that Achromobacter xylosoxidans ACM-1 can remove ammonium in batch cultures and could be applied in aquaculture farms as a biological nitrifier.
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Date 2022-06-18T05:50:56Z
2022-06-18T05:50:56Z
2018-07-11
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/72883
 
Language English
 
Relation Not Available;
 
Publisher Excellent Publisher