NDLI: Effects of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) on abundance and activity of ammonia oxidizers in soil

Content Provider	Springer Nature Link
Author	Florio, Alessandro Clark, Ian M. Hirsch, Penny R. Jhurreea, Deveraj Benedetti, Anna
Copyright Year	2014
Abstract	Recent evidence from several environments suggest that besides autotrophic ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA) are also able to perform the oxidation of NH4 + to NO2 −, although the relative importance of AOA in nitrification, compared to AOB, and their differential susceptibility to inhibitory compounds remains unclear. Experimental microcosms were set up to evaluate the effect of the addition of the nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) combined with a cattle effluent as organic fertilizer on the abundance and expression of ammonia oxidizers, denitrifiers, and non-target microbial populations using reverse transcription–real-time PCR, as well as on the diversity of metabolically active soil bacterial and archaeal communities by terminal restriction fragment length polymorphism. While no significant changes in soil mineral N concentrations or amoA gene copies could be detected between treatments, short-term changes in transcriptional activity revealed that DMPP impaired both bacterial and archaeal amoA mRNA, being significant at every time point for AOB and at one time point for AOA. Our findings revealed that, despite the different cellular biochemistry and metabolism existing between bacteria and archaea domains, DMPP exerts its inhibitory effect against both soil bacterial and archaeal ammonia-oxidizing transcriptional activity.
Starting Page	795
Ending Page	807
Page Count	13
File Format	PDF
ISSN	01782762
Journal	Biology and Fertility of Soils
Volume Number	50
Issue Number	5
e-ISSN	14320789
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-01-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	3,4-dimethylpyrazole phosphate (DMPP) Nitrification inhibitor Ammonia oxidizers Soil Cattle effluent Agriculture Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Soil Science Microbiology

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