The increased dependence of farmers on chemical fertilizers poses a risk to soil fertility and ecosystem stability. Plant growth‐promoting rhizobacteria (PGPR) are at the forefront of sustainable agriculture, providing multiple benefits for the enhancement of crop production and soil health. Bacillus subtilis is a common PGPR in soil that plays a key role in conferring biotic and abiotic stress tolerance to plants by induced systemic resistance (ISR), biofilm formation and lipopeptide production. As a part of bioremediating technologies, Bacillus spp. can purify metal contaminated soil. It acts as a potent denitrifying agent in agroecosystems while improving the carbon sequestration process when applied in a regulated concentration. Although it harbours several antibiotic resistance genes (ARGs), it can reduce the horizontal transfer of ARGs during manure composting by modifying the genetic makeup of existing microbiota. In some instances, it affects the beneficial microbes of the rhizosphere. External inoculation of B. subtilis has both positive and negative impacts on the endophytic and semi‐synthetic microbial community. Soil texture, type, pH and bacterial concentration play a crucial role in the regulation of all these processes. Soil amendments and microbial consortia of Bacillus produced by microbial engineering could be used to lessen the negative effect on soil microbial diversity. The complex plant–microbe interactions could be decoded using transcriptomics, proteomics, metabolomics and epigenomics strategies which would be beneficial for both crop productivity and the well‐being of soil microbiota. Bacillus subtilis has more positive attributes similar to the character of Dr. Jekyll and some negative attributes on plant growth, soil health and the environment akin to the character of Mr. Hyde.

Bacillus subtilis impact on plant growth, soil health and environment: Dr. Jekyll and Mr. Hyde

Heterotrophic nitrification and aerobic denitrification process: Promising but a long way to go in the wastewater treatment

Heterotrophic nitrification and aerobic denitrification by a novel Acinetobacter sp. TAC-1 at low temperature and high ammonia nitrogen.

Characterization of Acinetobacter indicus ZJB20129 for heterotrophic nitrification and aerobic denitrification isolated from an urban sewage treatment plant.

The nitrogen removal characterization of a cold-adapted bacterium: Bacillus simplex H-b.

Bioenergy from biomass crops plays an important role as a promising energy source to meet the energy demands. However, during the production of biomass crops, water requirement, water quality degradation and the resulting environmental and economic problems are important factors that can affect the development of bioenergy worldwide, especially in low- and middle-income countries. In addition, industrial-scale production of bioenergy may also cause pollution to water resources. Thus, it is extremely urgent to take effective approaches to improve the waterbodies. In this study, four novel denitrifying Bacillus strains, JD-005, JD-014, JD-016 and JD-017, were isolated, characterized and further studied on the properties of nitrogen removal. The four strains could utilize ammonium, nitrate and nitrite source under aerobic conditions. In a simulated 5 L sewage bioreactor, four strains also exhibited efficient denitrification performance in multiple nitrogen coexistence, with the nitrite-N removal rates reached 0.41–1.89 mg/L/h, and the ammonium removal rates reached 0.87–2.07 mg/L/h. In addition, the denitrification metabolic pathway of Bacillus subtilis JD-014 was confirmed by investigating the nitrogen balance, gaseous nitrogen production, enzyme activity and functional genes analysis. With outstanding nitrite tolerance, the nitrogen removal efficiency could up to approximately 50–80% at initial NO2−-N concentration of 50–200 mg/L. These results showed that JD-014 should be of great potential in bioremediation of polluted waterbodies and may provide an efficient and eco-friendly way in the future to improve water resources and realize better sustainable bioenergy application.

Characterization on the aerobic denitrification process of Bacillus strains

Insight into the denitrification mechanism of Bacillus subtilis JD-014 and its application potential in bioremediation of nitrogen wastewater

Aerobic denitrification is considered as a promising biological method to eliminate the nitrate contaminants in waterbodies. However, the molecular mechanism of this process varies in different functional bacteria. In this study, the nitrogen removal characteristics for a newly isolated aerobic denitrifier Bacillus subtilis JD-014 were investigated, and the potential functional genes involved in the aerobic denitrification process were further screened through transcriptome analysis. JD-014 exhibited efficient denitrification performance when having sodium succinate as the carbon source with the range of nitrate concentration between 50 and 300 mg/L. Following the transcriptome data, most of the up-regulated differentially expressed genes (DEGs) were associated with cell motility, carbohydrate metabolism, and energy metabolism. Moreover, gene nirsir annotated as sulfite reductase was screened out and further identified as a regulator participating in the nitrogen removal process within JD-014. The findings in present study provide meaningful information in terms of a comprehensive understanding of genetic regulation of nitrogen metabolism, especially for Bacillus strains.

https://www.mdpi.com/1422-0067/22/12/6543/pdf

A Novel Regulator Participating in Nitrogen Removal Process of Bacillus subtilis JD-014.

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Ting Yang

Author Tools

Chat about Author

Papers

The nitrogen removal characterization of a cold-adapted bacterium: Bacillus simplex H-b.

Characterization on the aerobic denitrification process of Bacillus strains

Insight into the denitrification mechanism of Bacillus subtilis JD-014 and its application potential in bioremediation of nitrogen wastewater

A Novel Regulator Participating in Nitrogen Removal Process of Bacillus subtilis JD-014.