Oculina patagonica 整体珊瑚及其对封闭、温度和弧菌感染的反应。

IF 13.8 1区 生物学 Q1 MICROBIOLOGY
Ana-Belen Martin-Cuadrado, Esther Rubio-Portillo, Francesc Rosselló, Josefa Antón
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引用次数: 0

摘要

背景:由于气候变化导致全球珊瑚礁迅速减少,人们开始广泛研究与造礁珊瑚相关的微生物的多样性和功能作用。一些研究强调了珊瑚相关藻类(共生藻类)和细菌的重要性,以及它们在促进珊瑚宿主健康和生存方面的潜在作用。然而,复杂的珊瑚全生物群并不局限于这些成分,还包括其他实体,如原生生物、真菌和病毒。虽然对珊瑚中的每种成分都进行了单独研究,但要全面了解珊瑚的健康和恢复能力,就必须全面了解它们的共同作用:对 Oculina patagonica 珊瑚微生物组的元基因组分析表明,曲霉属、镰刀菌属和根瘤菌属真菌以及链霉菌属、假单胞菌属和芽孢杆菌属原核生物是珊瑚全生物体中的丰富成员。这项研究还评估了在三种压力条件下微核生物、原核生物和病毒群落的变化:水族箱封闭、热应力和弧菌感染。总体而言,应激条件导致罗氏菌科、黄杆菌科和弧菌科细菌增加,而链霉菌科细菌减少。与此同时,微真核细胞物种的丰度和丰富度显著下降,与珊瑚本身以及共生藻和真菌产生抗微生物化合物有关的基因减少:我们的研究结果表明,珊瑚全生物体的微真核细胞和原核细胞之间的相互作用可能会受到压力条件的破坏,如封闭、海水温度升高或弧菌感染,从而导致全球微生物群落的菌群失调,这可能会增加珊瑚对疾病的易感性。此外,微真核生物群落似乎对原核生物群落的动态产生影响,可能是通过捕食或产生具有抗菌活性的次级代谢产物。视频摘要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The coral Oculina patagonica holobiont and its response to confinement, temperature, and Vibrio infections.

Background: Extensive research on the diversity and functional roles of the microorganisms associated with reef-building corals has been promoted as a consequence of the rapid global decline of coral reefs attributed to climate change. Several studies have highlighted the importance of coral-associated algae (Symbiodinium) and bacteria and their potential roles in promoting coral host fitness and survival. However, the complex coral holobiont extends beyond these components to encompass other entities such as protists, fungi, and viruses. While each constituent has been individually investigated in corals, a comprehensive understanding of their collective roles is imperative for a holistic comprehension of coral health and resilience.

Results: The metagenomic analysis of the microbiome of the coral Oculina patagonica has revealed that fungi of the genera Aspergillus, Fusarium, and Rhizofagus together with the prokaryotic genera Streptomyces, Pseudomonas, and Bacillus were abundant members of the coral holobiont. This study also assessed changes in microeukaryotic, prokaryotic, and viral communities under three stress conditions: aquaria confinement, heat stress, and Vibrio infections. In general, stress conditions led to an increase in Rhodobacteraceae, Flavobacteraceae, and Vibrionaceae families, accompanied by a decrease in Streptomycetaceae. Concurrently, there was a significant decline in both the abundance and richness of microeukaryotic species and a reduction in genes associated with antimicrobial compound production by the coral itself, as well as by Symbiodinium and fungi.

Conclusion: Our findings suggest that the interplay between microeukaryotic and prokaryotic components of the coral holobiont may be disrupted by stress conditions, such as confinement, increase of seawater temperature, or Vibrio infection, leading to a dysbiosis in the global microbial community that may increase coral susceptibility to diseases. Further, microeukaryotic community seems to exert influence on the prokaryotic community dynamics, possibly through predation or the production of secondary metabolites with anti-bacterial activity. Video Abstract.

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来源期刊
Microbiome
Microbiome MICROBIOLOGY-
CiteScore
21.90
自引率
2.60%
发文量
198
审稿时长
4 weeks
期刊介绍: Microbiome is a journal that focuses on studies of microbiomes in humans, animals, plants, and the environment. It covers both natural and manipulated microbiomes, such as those in agriculture. The journal is interested in research that uses meta-omics approaches or novel bioinformatics tools and emphasizes the community/host interaction and structure-function relationship within the microbiome. Studies that go beyond descriptive omics surveys and include experimental or theoretical approaches will be considered for publication. The journal also encourages research that establishes cause and effect relationships and supports proposed microbiome functions. However, studies of individual microbial isolates/species without exploring their impact on the host or the complex microbiome structures and functions will not be considered for publication. Microbiome is indexed in BIOSIS, Current Contents, DOAJ, Embase, MEDLINE, PubMed, PubMed Central, and Science Citations Index Expanded.
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