Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica

Recent bacterial induced bleaching disease events of the commercially farmed brown seaweed Saccharina japonica has resulted in significant reduction in healthy sporeling supply. However, to date the host associated epimicrobial community shifts with the disease progression have not been characterize...

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Main Authors: Fan Ling, Suhelen Egan, Yingrui Zhuang, Lirong Chang, Luyang Xiao, Qin Yang, Gaoge Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2022.865224/full
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author Fan Ling
Fan Ling
Suhelen Egan
Yingrui Zhuang
Yingrui Zhuang
Lirong Chang
Luyang Xiao
Qin Yang
Qin Yang
Gaoge Wang
Gaoge Wang
author_facet Fan Ling
Fan Ling
Suhelen Egan
Yingrui Zhuang
Yingrui Zhuang
Lirong Chang
Luyang Xiao
Qin Yang
Qin Yang
Gaoge Wang
Gaoge Wang
author_sort Fan Ling
collection DOAJ
description Recent bacterial induced bleaching disease events of the commercially farmed brown seaweed Saccharina japonica has resulted in significant reduction in healthy sporeling supply. However, to date the host associated epimicrobial community shifts with the disease progression have not been characterized. We investigated the dynamic shifts in the composition of the epibacterial communities of S. japonica with disease progression using 16S rRNA gene amplicon sequencing. We found that the alpha diversity was significantly higher in the control group than in the infected group over disease progression (P < 0.01). There was a significant shift in the composition and predicted functions of the epibacterial communities in both control and infected groups. Indicator species, belonging to Stenotrophomonas, Pseudomonas and Sphingomona were significantly higher in the control group than infected group, suggesting that these taxa are associated with healthy S. japonica. In contrast, Vibrio, Pseudoalteromonas and Colwellia were keystone taxa in the infected group at 24 h, and thus maybe considered to be the secondary opportunistic pathogens. Our study describes the changes of epibacterial communities associated with the progression of bleaching disease in S. japonica. This new information not only extends our baseline knowledge of the S. japonica epimicrobiome, but also paves the way for developing measures to mitigate disease outbreaks for the sustainable aquaculture of S. japonica.
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spelling doaj.art-489bff5c2c3d4618b0e865ac95a4c5fd2022-12-22T02:20:52ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-04-01910.3389/fmars.2022.865224865224Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonicaFan Ling0Fan Ling1Suhelen Egan2Yingrui Zhuang3Yingrui Zhuang4Lirong Chang5Luyang Xiao6Qin Yang7Qin Yang8Gaoge Wang9Gaoge Wang10College of Marine Life Sciences, Ocean University of China, Qingdao, ChinaInstitute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, ChinaCentre for Marine Science and Innovation and School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, AustraliaCollege of Marine Life Sciences, Ocean University of China, Qingdao, ChinaInstitute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, ChinaWeihai Changqing Ocean Science and Technology Co., Ltd, Rongcheng, ChinaWeihai Changqing Ocean Science and Technology Co., Ltd, Rongcheng, ChinaCollege of Marine Life Sciences, Ocean University of China, Qingdao, ChinaInstitute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, ChinaCollege of Marine Life Sciences, Ocean University of China, Qingdao, ChinaInstitute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, ChinaRecent bacterial induced bleaching disease events of the commercially farmed brown seaweed Saccharina japonica has resulted in significant reduction in healthy sporeling supply. However, to date the host associated epimicrobial community shifts with the disease progression have not been characterized. We investigated the dynamic shifts in the composition of the epibacterial communities of S. japonica with disease progression using 16S rRNA gene amplicon sequencing. We found that the alpha diversity was significantly higher in the control group than in the infected group over disease progression (P < 0.01). There was a significant shift in the composition and predicted functions of the epibacterial communities in both control and infected groups. Indicator species, belonging to Stenotrophomonas, Pseudomonas and Sphingomona were significantly higher in the control group than infected group, suggesting that these taxa are associated with healthy S. japonica. In contrast, Vibrio, Pseudoalteromonas and Colwellia were keystone taxa in the infected group at 24 h, and thus maybe considered to be the secondary opportunistic pathogens. Our study describes the changes of epibacterial communities associated with the progression of bleaching disease in S. japonica. This new information not only extends our baseline knowledge of the S. japonica epimicrobiome, but also paves the way for developing measures to mitigate disease outbreaks for the sustainable aquaculture of S. japonica.https://www.frontiersin.org/articles/10.3389/fmars.2022.865224/fullbleaching diseaseepimicrobiome shiftspathogenic bacteria16S rRNA gene amplicon sequencingSaccharina japonica
spellingShingle Fan Ling
Fan Ling
Suhelen Egan
Yingrui Zhuang
Yingrui Zhuang
Lirong Chang
Luyang Xiao
Qin Yang
Qin Yang
Gaoge Wang
Gaoge Wang
Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
Frontiers in Marine Science
bleaching disease
epimicrobiome shifts
pathogenic bacteria
16S rRNA gene amplicon sequencing
Saccharina japonica
title Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
title_full Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
title_fullStr Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
title_full_unstemmed Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
title_short Epimicrobiome Shifts With Bleaching Disease Progression in the Brown Seaweed Saccharina japonica
title_sort epimicrobiome shifts with bleaching disease progression in the brown seaweed saccharina japonica
topic bleaching disease
epimicrobiome shifts
pathogenic bacteria
16S rRNA gene amplicon sequencing
Saccharina japonica
url https://www.frontiersin.org/articles/10.3389/fmars.2022.865224/full
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