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Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
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Mangrove sediments are environmental hotspots for pathogenic protists.

Fei Liu1, Jijuan Ding1, Jiaxiong Zeng1

  • 1Environmental Microbiomics Research Center, School of Environmental Science and Engineering, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, State Key Laboratory for Biocontrol, Sun Yat-sen University, Guangzhou 510006, China.

Journal of Hazardous Materials
|February 8, 2024
PubMed
Summary

Mangrove sediments harbor a high abundance of parasitic protists, posing potential environmental and human health risks. This study reveals their surprising dominance and key influencing factors in these unique ecosystems.

Keywords:
DiversityMangrove sedimentParasitePathogensProtist

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Area of Science:

  • Microbiology
  • Ecology
  • Environmental Science

Background:

  • Mangrove sediments are vital habitats for diverse microbial life.
  • Protistan communities in these ecosystems are poorly understood, despite their ecological importance.
  • Assessing protistan diversity and environmental risk is crucial for understanding mangrove health.

Purpose of the Study:

  • To comprehensively characterize the protistan community in mangrove sediments.
  • To investigate the diversity, abundance, and environmental factors influencing protists.
  • To evaluate the potential environmental and health risks associated with protists in mangroves.

Main Methods:

  • Metagenome sequencing was employed to analyze protistan communities.
  • Statistical analyses were used to determine relationships between protists and environmental variables.
  • Abundance and distribution patterns were assessed across different latitudes and depths.

Main Results:

  • Parasitic protists were found to dominate mangrove sediments, averaging 59.67% abundance.
  • Protistan abundance decreased with latitude but increased significantly with sediment depth.
  • Microbial communities (bacteria, fungi, archaea), sulfate, and salinity strongly influenced protistan composition.

Conclusions:

  • Mangrove sediments are identified as hotspots for parasitic protists, with implications for environmental pathogens.
  • Findings highlight the significant role of environmental factors like salinity and depth in shaping protistan communities.
  • The high prevalence of parasitic protists suggests potential risks to human health and necessitates further investigation.