Seaweed-associated epiphytic bacteria: Diversity, ecological and economic implications

Kaur, Manpreet; Saini, Khem Chand; Mallick, Asish; Bast, Felix

doi:10.1016/j.aquabot.2023.103698

Cited by 5 publications

(2 citation statements)

References 120 publications

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“…Steiner et al [42] also found evidence that marine communities, including highly diverse bacteria and algae, can enhance post-disturbance resilience. Diverse marine bacteria associated with macroalgae exert beneficial effects on their hosts [43]. Many marine bacteria provide hosts with a source of fixed nitrogen [44,45] or growth factors such as minerals and carbon dioxide [46,47].…”

Section: Microbial Biodiversity and Its Implicationsmentioning

confidence: 99%

Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica

Choi,

Yang,

Choi

et al. 2024

Diversity

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Aquaculture farms cultivating Saccharina japonica are highly active in Wando, Korea, and Rongcheng, China. However, the yield of S. japonica significantly declined in the Rongcheng region in 2022 compared to previous records, whereas that in Wando remained at a normal level, presumably due to the presence of a pathogenic microbiome. We used environmental DNA (eDNA) metagenomic analysis to compare the microbial compositions of seawater from aquaculture farms in Wando and Rongcheng. Seawater samples were collected from one Korean site in Wando (WA) and two Chinese sites in Ailian Bay (AB) and Lidao Bay (LB). Metagenomic analysis focusing on the microbial 16S rRNA identified 38 phyla and 58 families of microbiomes in all regions. Potentially pathogenic bacterial groups associated with S. japonica in AB and LB were more abundant than in WA, suggesting their potential influence on mortality and the decline in the harvest yield of S. japonica. The microbial composition of WA was distinguished from those of the other two sites, which clustered together with higher similarity. Since the S. japonica aquaculture industry is important for both countries, this comparative eDNA monitoring is a valuable initiation towards the next step of problem-solving practices in coastal management in these two aquaculture systems.

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Section: Microbial Biodiversity and Its Implicationsmentioning

confidence: 99%

Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica

Choi,

Yang,

Choi

et al. 2024

Diversity

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“…Research on the interactions of bacterial communities associated with seaweeds has significantly advanced in recent years [ 11 , 12 ]. This interaction may play a crucial role in tropical reef algae, suggesting an algal holobiont [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Supty,

Jahan,

Lee

et al. 2024

Microorganisms

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The bacterial communities related to seaweed can vary considerably across different locations, and these variations influence the seaweed’s nutrition, growth, and development. To study this further, we evaluated the bacteria found on the green marine seaweed Ulva prolifera from Garorim Bay and Muan Bay, two key locations on Republic of Korea’s west coast. Our analysis found notable differences in the bacterial communities between the two locations. Garorim Bay hosted a more diverse bacterial population, with the highest number of ASVs (871) compared to Muan Bay’s 156 ASVs. In Muan Bay, more than 50% of the bacterial community was dominated by Pseudomonadota. On the other hand, Garorim Bay had a more balanced distribution between Bacteroidota and Pseudomonadota (37% and 35.5%, respectively). Additionally, Cyanobacteria, particularly Cyanothece aeruginosa, were found in significant numbers in Garorim Bay, making up 8% of the community. Mineral analysis indicated that Garorim Bay had higher levels of S, Na, Mg, Ca, and Fe. Function-wise, both locations exhibited bacterial enrichment in amino acid production, nucleosides, and nucleotide pathways. In conclusion, this study broadens our understanding of the bacterial communities associated with Ulva prolifera in Korean waters and provides a foundation for future research on the relationships between U. prolifera and its bacteria.

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Bacillus sp. enhances the interspecific competitiveness of its host Cyclotella atomus

Zhou,

Cao,

et al. 2025

Aquaculture

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Seaweed-associated epiphytic bacteria: Diversity, ecological and economic implications

Cited by 5 publications

References 120 publications

Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica

Comparative Metagenomic Analysis of Marine eDNA Investigating the Production Crisis of Aquacultured Saccharina japonica

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Bacillus sp. enhances the interspecific competitiveness of its host Cyclotella atomus

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