# Bibliometrics and Visualization Analysis of Three Obligate Organohalide Respiring Bacteria Genera: A Systematic Review

## TL;DR

This paper reviews 30 years of research on three types of bacteria that help clean up toxic chemicals in the environment.

## Contribution

The study provides a systematic bibliometric analysis of research trends and advancements in three obligate OHRB genera.

## Key findings

- Research on the three bacterial genera has progressed sequentially over three decades.
- Studies have shifted from individual investigations to applications in environmental remediation.
- The analysis highlights key research hotspots and future directions for ecological restoration.

## Abstract

Organohalide-respiring bacteria (OHRB) facilitate the reductive dehalogenation of toxic halogenated compounds in the environment, which supports their growth and proliferation. Research conducted on OHRB has achieved notable advancements. However, given the intricacy of the ecosystem and the methodologies employed for microbial isolation, numerous constraints persist. Further exploration is imperative to elucidate the physiological characteristics, ecological functions, and technological applications of OHRB. This study aimed to evaluate the outcomes and insights of prior research via a bibliometric analysis of three obligate OHRB genera—Dehalococcoides, Dehalobacter, and Dehalogenimonas—over a three-decade period from 1994 to 2024, based on the Web of Science (WOS) database. The results show that research on these three bacterial genera has advanced in sequence since the initiation of studies in this field. The research area encompasses the identification and isolation of novel OHRB species, the gene sequencing of related enzymes, and the role of microorganisms in the remediation of environmental pollutants, reflecting a gradual transition from individual investigations of OHRB to the applications of microorganisms in remediating complex environmental pollution. This study systematically reviewed the past research history of this field and conducted an in-depth analysis of research hotspots. The integration of this analysis with technological development trends and practical application requirements provides a theoretical basis and innovative concepts for future research directions in the field of ecological environment restoration.