Evidence map›Paper›PMID 41117817›Full record

ArticleArchives of microbiology2025

Insights into the microbial diversity and functionalities of potential hydrocarbon-degrading bioremediation agents in oil spill sludge of Assam, India.

Rahul Gogoi, Sudipta Sankar Bora, Bhoirob Gogoi, Romen Singh Naorem, Madhumita Barooah

Abstract read
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Article in Archives of microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Rahul GogoiDepartment of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India.
Sudipta Sankar BoraDBT-North East Centre for Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India.
Bhoirob GogoiDBT-North East Centre for Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India.
Romen Singh NaoremDBT-North East Centre for Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India.
Madhumita BarooahDepartment of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India. madhumita.barooah@aau.ac.in.ORCID http://orcid.org/0000-0002-3768-5336

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oil spill contamination poses a significant threat to environmental and ecological health, particularly in crude oil-rich regions such as Assam, a north-eastern state of India. This study explores the microbial diversity and functional potential of hydrocarbon-degrading bacteria in crude oil-contaminated sludge. Sludge samples were collected from three contaminated sites in Assam and analyzed for microbial diversity by culture dependent and independent (using 16 S rRNA amplicon sequencing) approaches. Metagenomic analysis revealed a diverse microbial community, with Proteobacteria and Planctomycetes dominating the metagenomes. Seven bacterial isolates, including Diaphorobacter nitroreducens, Lysinibacillus capsici, and Pseudomonas otitidis, were isolated and identified as potential hydrocarbon degraders. The isolates were screened and evaluated for biosurfactant production, hydrocarbon adhesion, and key enzymatic activities involved in degradation. These isolates exhibited significant biosurfactant-producing abilities, with Diaphorobacter nitroreducens MBRG1 showing the highest emulsification index (79%) and strong adherence to hydrocarbons. The enzymatic activities of alkane hydroxylase and alcohol dehydrogenase confirmed the metabolic capabilities of the isolates in hydrocarbon degradation. Optimal growth conditions for biosurfactant production were determined to be pH 7, 30 °C, 2% sucrose as the carbon source, and 3% yeast extract as the nitrogen source. The study highlights the potential of these indigenous bacterial isolates in bioremediation strategies to mitigate oil contamination. Future studies should focus on large-scale bioreactor studies, field trials, and strain improvement of these bacteria to enhance their degradation efficiency and adaptability to varied environmental conditions.

Indexed as

BacteriaHydrocarbonsPetroleum PollutionSewageBiodegradation, EnvironmentalBiodiversityIndiaPetroleumPhylogenyRNA, Ribosomal, 16SSurface-Active AgentsHydrocarbonsPetroleumRNA, Ribosomal, 16SSewageSurface-Active Agents16S rRNA amplicon sequencingBioremediationBiosurfactant productionHydrocarbon degradationOil spill contamination

Identifiers

PMID41117817

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.