Resumen

AVILA-CASTRO, Elizabeth et al. Tributyltin marine bacteria-tolerant in Manzanillo Bay, Colima, Mexico. Rev. Int. Contam. Ambient [online]. 2024, vol.40, 55221.  Epub 17-Mar-2025. ISSN 0188-4999.  https://doi.org/10.20937/rica.55221.

Tributyltin (TBT) is a highly toxic and persistent compound representing a series of environmental risks, mainly in the sediments of maritime ports. The search for microorganisms that can tolerate the toxic compound generates an important resource as indicators or even potential degraders of the compound. This work aimed to evaluate the resistance capacity and the maximum concentration of tolerance to TBT of bacterial strains isolated from the sediments of Manzanillo Bay. Strains were inoculated at different TBT concentrations (0.42, 0.82, 1.26, 2.5, 3.75, 5 y 7.5 mM). Cobetia sp., Pseudoalteromonas sp., Vibrio toranzoniae, and V. alginolyticus are species that showed the ability to resist 420 μM, 820 μM, 1.26 mM, 2.5 mM, 3.75 mM, the last one being the highest concentration. Our results provide the necessary information to evaluate whether TBT-tolerant bacteria could reduce the compound to less toxic metabolites and be potential for the bioremediation of contaminated ecosystems.

Palabras llave : pollution; microorganisms; resistance capacity; seaports; sediment.

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