Transcriptional and metabolic response against hydroxyethane-(1,1-bisphosphonic acid) on bacterial denitrification by a halophilic Pannonibacter sp. strain DN

Koju, Rashmi; Liang, Bin; Joshi, Dev Raj; Bai, Yaohui; Liu, Ruiping; Qu, Juihui

doi:10.1016/j.chemosphere.2020.126478

Cited by 16 publications

(7 citation statements)

References 52 publications

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“…As fermentation progresses, Leuconostoc is gradually replaced by acid-tolerant LABs, such as Lactobacillus [ 58 ]. As for other genera, Pannonibacter and Inhella have been reported to exert the effect of biological denitrification and reduce nitrate to nitrite [ 59 , 60 ]; Caulobacter plays functional roles in enhancing plant growth by synthesizing siderophores, solubilizing phosphate and producing indole-3-acetic acid [ 61 ]. However, the roles of these genera in silage are still undefined and thus require further research.…”

Section: Discussionmentioning

confidence: 99%

Effects of Malic Acid and Sucrose on the Fermentation Parameters, CNCPS Nitrogen Fractions, and Bacterial Community of Moringa oleifera Leaves Silage

et al. 2021

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The present study investigated the effects of malic acid, sucrose, and their mixture on the fermentation parameters, Cornell Net Carbohydrate and Protein System (CNCPS) nitrogen fractions, and bacterial community of Moringa oleifera leaves (MOL) silages. The trial was divided into four treatments and labeled as CON (control group) and MLA, SUC, and MIX (respectively denoting the addition of 1% malic acid, 1% sucrose, and 1% malic acid + 1% sucrose to the fresh weight basis). The silage packages were opened on the 2nd, 5th, 10th, 20th, and 40th days of ensiling for subsequent determination. Malic acid and sucrose increased the lactic acid content (p < 0.05) and pH value, and the acetic acid contents of MLA and MIX were lower than those in CON (p < 0.05). Compared with sucrose, malic acid had a better capacity to preserve nutrients and inhibit proteolysis, and thus exerted better effects on the CNCPS nitrogen fractions. The results of 16S rRNA showed that the dominant phyla were Firmicutes and Proteobacteria and that the dominant genera were Lactobacillus and Weissella. With the application of silage additives and the processing of fermentation, there was a remarkable change in the composition and function of the bacterial community. The variation of the fermentation parameters and CNCPS nitrogen fractions in the MOL silages caused by malic acid and sucrose might be attributed to the dynamic and dramatic changes of the bacterial community.

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Section: Discussionmentioning

confidence: 99%

Effects of Malic Acid and Sucrose on the Fermentation Parameters, CNCPS Nitrogen Fractions, and Bacterial Community of Moringa oleifera Leaves Silage

et al. 2021

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“…Sequencing was performed on an Illumina HiSeq×10 (2 × 150 bp read length) sequencing system at Shanghai Majorbio Pharm Technology Co. The sequence data were analyzed on the free online platform of Majorbio Cloud Platform (http://www.majorbio.com) (Alonso‐Roman et al, 2022; Koju et al, 2020; Ren et al, 2022). Gene transcription levels were quantified by RSEM (Li & Dewey, 2011).…”

Section: Methodsmentioning

confidence: 99%

“…The sequence data were analyzed on the free online platform of Majorbio Cloud Platform (www.majorbio.com) (Alonso-Roman et al, 2022;Koju et al, 2020;Ren et al, 2022). Gene transcription levels were quantified by RSEM (Li & Dewey, 2011).…”

Section: Transcriptome Profilingmentioning

confidence: 99%

Direct ammonia oxidation (Dirammox) is favored over cell growth in Alcaligenes ammonioxydans HO‐1 to deal with the toxicity of ammonium

Lv,

Min,

Cheng

et al. 2023

Biotech & Bioengineering

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Bacteria capable of direct ammonia oxidation (Dirammox) play important roles in global nitrogen cycling and nutrient removal from wastewater. Dirammox process, NH3 → NH2OH → N2, first defined in Alcaligenes ammonioxydans HO‐1 and encoded by dnf gene cluster, has been found to widely exist in aquatic environments. However, because of multidrug resistance in Alcaligenes species, the key genes involved in the Dirammox pathway and the interaction between Dirammox process and the physiological state of Alcaligenes species remain unclear. In this work, ammonia removal via the redistribution of nitrogen between Dirammox and microbial growth in A. ammonioxydans HO‐1, a model organism of Alcaligenes species, was investigated. The dnfA, dnfB, dnfC, and dnfR genes were found to play important roles in the Dirammox process in A. ammonioxydans HO‐1, while dnfH, dnfG, and dnfD were not essential genes. Furthermore, an unexpected redistribution phenomenon for nitrogen between Dirammox and cell growth for ammonia removal in HO‐1 was revealed. After the disruption of the Dirammox in HO‐1, more consumed NH4+ was recovered as biomass‐N via rapid metabolic response and upregulated expression of genes associated with ammonia transport and assimilation, tricarboxylic acid cycle, sulfur metabolism, ribosome synthesis, and other molecular functions. These findings deepen our understanding of the molecular mechanisms for Dirammox process in the genus Alcaligenes and provide useful information about the application of Alcaligenes species for ammonia‐rich wastewater treatment.

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“…Simultaneously, the application of the Pannonibacter genus mainly focused on the bacterial deni-trication or degradation of uorinated fungicides and asphaltene. [29][30][31] Alternatively, in the present study, the isolated strain was applied to clarify its ability for the biodegradation of BaP and its interaction mechanism based on the modeled structure of dioxygenase.…”

Section: Isolation and Identication Of Bacteriummentioning

confidence: 99%

Biotransformation of benzo[a]pyrene by Pannonibacter sp. JPA3 and the degradation mechanism through the initially oxidized benzo[a]pyrene-4,5-dihydrodiol to downstream metabolites

et al. 2023

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Transcriptional and metabolic response against hydroxyethane-(1,1-bisphosphonic acid) on bacterial denitrification by a halophilic Pannonibacter sp. strain DN

Cited by 16 publications

References 52 publications

Effects of Malic Acid and Sucrose on the Fermentation Parameters, CNCPS Nitrogen Fractions, and Bacterial Community of Moringa oleifera Leaves Silage

Effects of Malic Acid and Sucrose on the Fermentation Parameters, CNCPS Nitrogen Fractions, and Bacterial Community of Moringa oleifera Leaves Silage

Direct ammonia oxidation (Dirammox) is favored over cell growth in Alcaligenes ammonioxydans HO‐1 to deal with the toxicity of ammonium

Biotransformation of benzo[a]pyrene by Pannonibacter sp. JPA3 and the degradation mechanism through the initially oxidized benzo[a]pyrene-4,5-dihydrodiol to downstream metabolites

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