Coral probiotics induce tissue-specific and putative beneficial microbiome restructuring in a coral-dwelling fish.

IF 5.1 Q1 ECOLOGY
ISME communications Pub Date : 2025-03-22 eCollection Date: 2025-01-01 DOI:10.1093/ismeco/ycaf052
Joao Gabriel Duarte Rosado, Nathalia Delgadillo-Ordoñez, Matteo Monti, Viktor Nunes Peinemann, Chakkiath Paul Antony, Ahmed Alsaggaf, Inês Raimundo, Darren Coker, Neus Garcias-Bonet, Francisca García, Raquel Silva Peixoto, Susana Carvalho, Michael L Berumen
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Abstract

The ongoing fourth mass global coral bleaching event reinforces the need for active solutions to support corals through this major crisis. The use of beneficial microorganisms for corals (BMCs) offers a promising nature-based solution to rehabilitate coral's dysbiotic microbiomes. While the benefits to corals are increasingly recognized, the impacts on associated reef organisms, such as fish, remain unexplored. This study investigated the effects of BMCs on the tissue-associated microbiomes of Dascyllus abudafur (Pomacentridae), a damselfish that lives closely associated with coral colonies. Over three months, we applied BMCs three times per week to healthy Pocillopora verrucosa colonies in the central Red Sea and analyzed the resultant changes in the inhabiting fish's microbiomes. Our findings reveal significant, tissue-specific shifts in bacterial communities, particularly skin and gut, with moderate changes observed in gills. Notably, putative fish beneficial bacteria such as Mitsuokella spp. were enriched in the skin, while various Firmicutes taxa increased in the gut. There was also a marked decrease in potential fish pathogens. This study highlights the potential extended benefits of BMCs on coral reef fish and sets a foundation for understanding the broader ecological interactions between BMCs and reef-associated organisms.

珊瑚益生菌诱导组织特异性和推定有益的微生物组重组在珊瑚栖息的鱼。
正在进行的第四次大规模全球珊瑚白化事件加强了积极解决方案的必要性,以支持珊瑚度过这场重大危机。珊瑚有益微生物(BMCs)的使用为恢复珊瑚的生态失调微生物群提供了一个有前途的基于自然的解决方案。虽然人们越来越认识到对珊瑚的好处,但对相关珊瑚礁生物(如鱼类)的影响仍未得到探索。本研究调查了BMCs对与珊瑚群落密切相关的小雀鲷Dascyllus abudafur (Pomacentridae)组织相关微生物组的影响。在三个多月的时间里,我们每周三次在红海中部的健康疣状棘孔鱼菌落上施用bmc,并分析了由此产生的居住鱼类微生物组的变化。我们的研究结果揭示了细菌群落的显著组织特异性变化,特别是皮肤和肠道,在鳃中观察到适度的变化。值得注意的是,假定的鱼类有益细菌如Mitsuokella spp.在皮肤中丰富,而各种厚壁菌门类群在肠道中增加。潜在的鱼类病原体也显著减少。该研究强调了bmc对珊瑚礁鱼类的潜在扩展效益,并为理解bmc与珊瑚礁相关生物之间更广泛的生态相互作用奠定了基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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