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Environmental microbiology
Mar, 2025;27 (3): e70075.

Particle-Associated Bacterioplankton Communities Across the Red Sea.

Larissa Fr��he, Shannon G Klein, Carlos Angulo-Preckler, Anastasiia Martynova, Taiba Alamoudi, Jacqueline V Alva Garc��a, Silvia Arossa, Jessica Breavington, Sofia Frappi, Elisa Laiolo, Kah Kheng Lim, Anieka J Parry, Eleonora Re, Diego E Rivera Rosas, Mattie Rodrigue, Alexandra Steckbauer, Vincent A Pieribone, Mohammad A Qurban, Carlos M Duarte
Author Information
  1. Larissa Fr��he: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia. ORCID
  2. Shannon G Klein: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  3. Carlos Angulo-Preckler: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  4. Anastasiia Martynova: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  5. Taiba Alamoudi: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  6. Jacqueline V Alva Garc��a: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  7. Silvia Arossa: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  8. Jessica Breavington: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  9. Sofia Frappi: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  10. Elisa Laiolo: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  11. Kah Kheng Lim: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  12. Anieka J Parry: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  13. Eleonora Re: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  14. Diego E Rivera Rosas: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  15. Mattie Rodrigue: OceanX, New York, New York, USA.
  16. Alexandra Steckbauer: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
  17. Vincent A Pieribone: OceanX, New York, New York, USA.
  18. Mohammad A Qurban: National Center for Wildlife (NCW), Riyadh, Kingdom of Saudi Arabia.
  19. Carlos M Duarte: Marine Science Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
PMID: 40098226 DOI: 10.1111/1462-2920.70075

Abstract

Pelagic particle-associated bacterioplankton play crucial roles in marine ecosystems, influencing biogeochemical cycling and ecosystem functioning. However, their diversity, composition, and dynamics remain poorly understood, particularly in unique environments such as the Red Sea. In this study, we employed eDNA metabarcoding to comprehensively characterise bacterioplankton communities associated with pelagic particles in a three-dimensional assessment spanning depths from the surface to a depth of 2300���m along the full length of the eastern Red Sea within the exclusive economic zone of the Kingdom of Saudi Arabia. Our results reveal a diverse assemblage of taxa, with Pseudomonadota, Cyanobacteriota, and Planctomycetota being the dominant phyla. We identified pronounced spatial variability in community composition among five major Red Sea geographical regions, with a third of all amplicon sequence variants being unique to the Southern Red Sea in contrast to a relatively homogenous distribution along the water column depth gradient. Our findings contribute to a deeper understanding of microbial ecology in the Red Sea and provide valuable insights into the factors governing pelagic particle-associated bacterioplankton communities in this basin.

Keywords

bacteria environmental genomics microbial communities microbial ecology

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Grants

  1. /National Center of Wildlife
  2. /King Abdullah University of Science and Technology

MeSH Term

Indian Ocean
Seawater
Plankton
Bacteria
Ecosystem
Microbiota
Saudi Arabia
Phylogeny
Biodiversity
RNA, Ribosomal, 16S

Chemicals

RNA, Ribosomal, 16S
Journal Article
Article has an altmetric score of 1

Word Cloud

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