Mundo microbiano del océano, clave para la salud de los organismos marinos: Ocean's microbial world, key to the health of marine organisms

Natalia Carabantes; Luis Parmenio Suescún Bolívar

doi:10.24054/bistua.v23i1.3757

Authors

Natalia Carabantes Centro de Investigación Científica y de Educación Superior de Ensenada https://orcid.org/0000-0003-3417-3367
Luis Parmenio Suescún Bolívar Department of Licenciatura en Educación con Énfasis en Ciencias Sociales y Ambientales, Facultad de Ciencias Sociales y Educación, Universidad de Cartagena, Cartagena de Indias, Colombia https://orcid.org/0000-0003-0707-403X

DOI:

https://doi.org/10.24054/bistua.v23i1.3757

Keywords:

Marine microbiome, Symbiosis, Climate change, 16S rRNA

Abstract

Microscopic life in the oceans—including bacteria, archaea, viruses, fungi, protozoa, and microalgae—is essential for the health of marine ecosystems. These microorganisms form the microbiome, a community that establishes symbiotic relationships with organisms such as corals, sea anemones, and jellyfish of the phylum Cnidaria. In these cases, the host–microbiome complex is known as a holobiont, where microbes provide defense against pathogens, produce antimicrobial compounds, and supply nutrients that optimize host metabolism and physiology. This review explores the ecological role of the microbiome in cnidarians and its response to environmental stress. A key example is the symbiosis with microalgae of the family Symbiodiniaceae, which provide photosynthetic products that support the host’s energy needs. However, climate change and pollution disrupt this relationship, leading to bleaching, symbiont loss, and microbiome destabilization. These changes favor the proliferation of pathogenic bacteria and can ultimately result in cnidarian death. The use of anemones, corals, and jellyfish as model systems is highlighted to study these processes, including the decline of beneficial bacteria such as Endozoicomonas and the increase of opportunistic pathogens like Vibrio. The presence of key bacteria such as Ruegeria, even under stressful conditions, is also emphasized. Overall, the microbiome emerges as a sentinel of marine health, reflecting environmental shifts before visible damage occurs and offering tools for conservation in the face of global warming.

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References

D. Bourne et al., “Changes in Coral-Associated Microbial Communities During a Bleaching Event,” ISME J., vol. 2, pp. 350–363, 2007. DOI: 10.1038/ismej.2007.112.

D. Gevers et al., “The Human Microbiome Project: A community resource for the healthy human microbiome,” PLoS Biol., vol. 10, no. 8, e1001377, 2012. DOI: 10.1371/journal.pbio.1001377.

J. Lederberg and A. T. McCray, “‘Ome Sweet ‘Omics--A Genealogical Treasury of Words,” The Scientist, 15(7):8–8., 2001. DOI: 10.1186/s40168-015-0094-5.

Atlantic Ocean Research Alliance (AORA), Marine Microbiome Roadmap, 2020.

Administración Nacional de Aeronáutica y el Espacio (NASA), “NASA analysis confirms 2023 as warmest year on record,” 2024. [En línea]. Disponible: https://www.nasa.gov/news-release/nasa-analysis-confirms-2023-as-warmest-year-on-record/. [Consultado: 04-mayo-2025].

D. G. Bourne et al., “Insights into the coral microbiome: Underpinning the health and resilience of reef ecosystems,” Annu. Rev. Microbiol., vol. 70, pp. 317–340, 2016. DOI: 10.1146/annurev-micro-102215-095440.

C. R. Voolstra et al., “The coral microbiome in sickness, in health and in a changing world,” Nat. Rev. Microbiol., vol. 22, no. 8, 2024. DOI: 10.1038/s41579-024-01015-3.

S. Peng et al., “Bacterial Communities Associated With Four Blooming Scyphozoan Jellyfish: Potential Species-Specific Consequences for Marine Organisms and Human Health,” Front. Microbiol., vol. 12, 647089, 2021. DOI: 10.3389/fmicb.2021.647089.

L. P. Suescún-Bolívar & P. E. Thomé. The specific inhibition of glycerol synthesis and the phosphorylation of a putative Mitogen-Activated Protein Kinase give insight into the mechanism of osmotic sensing in a dinoflagellate symbiont. The Journal of eukaryotic microbiology, 69(2), e12883. 2022. DOI: 10.1111/jeu.12883.

N. Carabantes et al., “Changes in the bacterial community associated with experimental symbiont loss in the mucus layer of Cassiopea xamachana jellyfish,” Front. Mar. Sci., vol. 9, 879184, 2022. DOI: 10.3389/fmars.2022.879184.

M. McFall-Ngai et al., “Animals in a bacterial world, a new imperative for the life sciences,” Proc. Natl. Acad. Sci. U.S.A., vol. 110, no. 9, pp. 3229–3236, 2013. DOI: 10.1073/pnas.1218525110.

T. C. LaJeunesse et al., “Systematic revision of Symbiodiniaceae highlights the antiquity and diversity of coral endosymbionts,” Curr. Biol., vol. 28, no. 16, pp. 2570–2580.e6, 2018. DOI: 10.1016/j.cub.2018.07.008.

P. G. Falkowski and Z. Kolber, “Estimation of phytoplankton photosynthesis by active fluorescence” Marine Science Symposium. 1993. 197: 92–103.

P. Tremblay, R. Grover, J.F. Maguer, L. Legendre and C. Ferrier-Pagès, “Autotrophic carbon budget in coral tissue: a new 13C-based model of photosynthate translocation”. The Journal of Experimental Biology, 215(Pt 8), 1384–1393. 2012. DOI: 10.1242/jeb.065201.

A. Apprill, L. G. Weber, and A. E. Santoro, “Distinguishing between Microbial Habitats Unravels Ecological Complexity in Coral Microbiomes,” mSystems, vol. 1, no. 5, p. e00143-16, Oct. 2016. DOI: 10.1128/mSystems.00143-16.

N. Carabantes, A. Munguía-Vega y L. E. Calderón-Aguilera, “El ADN ambiental como herramienta para conocer la biodiversidad del océano profundo,” Boletín de la SCME, vol. 4, no. 9, p. 20, 2024.

S. Y. Lee, H. J. Jeong, N. S. Kang, T. Y. Jang, S. H. Jang, and T. C. Lajeunesse, “Symbiodinium tridacnidorum sp. nov., a dinoflagellate common to Indo-Pacific giant clams, and a revised morphological description of Symbiodinium microadriaticum Freudenthal, emended Trench & Blank,” Eur. J. Phycol., vol. 50, no. 2, pp. 155–172, 2015, doi: 10.1080/09670262.2015.1018336.

F. Sun, H. Yang, X. Zhang, F. Tan, G. Wang, and Q. Shi, "Significant response of coral-associated bacteria and their carbohydrate-active enzymes diversity to coral bleaching," Marine Environmental Research, vol. 201, p. 106694, 2024, doi: 10.1016/j.marenvres.2024.106694.

C. R. Voolstra, “A Journey Into the Wild of the Cnidarian Model System Aiptasia and Its Symbionts,” Mol. Ecol., vol. 22, p. 4366, 2013. DOI: 10.1111/mec.12464.

C. Pogoreutz, N. Rädecker, A. Cárdenas, A. Gärdes, C. R. Voolstra and C. Wild, “Sugar Enrichment Provides Evidence for a Role of Nitrogen Fixation in Coral BlANeaching,” Glob. Change Biol., vol. 23, pp. 3838–3848, 2017. DOI: 10.1111/gcb.13695.

A. H. Ohdera et al., “Upside-Down But Headed in the Right Direction: Review of the Highly Versatile Cassiopea xamachana System,” Front. Ecol. Evol., vol. 6, p. 35, 2018. DOI: 10.3389/fevo.2018.00035.

A. Klindworth et al., “Evaluation of General 16S Ribosomal RNA Gene PCR Primers for Classical and Next-Generation Sequencing-Based Diversity Studies,” Nucleic Acids Res., vol. 41, e1, 2013. DOI: 10.1093/nar/gks808.

B. J. Callahan et al., “Exact sequence variants should replace operational taxonomic units in marker-gene data analysis,” ISME J., vol. 11, pp. 2639–2643, 2017. DOI: 10.1038/ismej.2017.119.

K. B. Ritchie, “Regulation of microbial populations by coral surface mucus and mucus-associated bacteria,” Mar. Ecol. Prog. Ser., vol. 322, pp. 1–14, 2006. DOI: 10.3354/meps322001.

K. H. Sharp, Z. A. Pratte, A. H. Kerwin, R. D. Rotjan and F. J. Stewart, “Season, But Not Symbiont State, Drives Microbiome Structure in the Temperate Coral Astrangia poculata,” Microbiome, vol. 5, p. 120, 2017. DOI: 10.1186/s40168-017-0329-8.

A. Hernandez-Agreda et al., “Defining the core microbiome in corals’ microbial soup,” Trends Microbiol., vol. 25, no. 2, pp. 125–140, 2017. DOI: 10.1016/j.tim.2016.11.003.

Ocean's microbial world, key to the health of marine organisms