Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa
The cosmopolitan algae Phaeocystis globosa forms harmful algal blooms frequently in a number of tropical and subtropical coastal regions in the past two decades. During the bloom, the giant colony, which is formed by P. globosa, is the dominant morphotype. However, the microenvironment and the micro...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-09-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2021.737484/full |
| _version_ | 1818926614210150400 |
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| author | Zhu Zhu Rui Meng Walker O. Smith Jr. Hai Doan-Nhu Lam Nguyen-Ngoc Xinjun Jiang |
| author_facet | Zhu Zhu Rui Meng Walker O. Smith Jr. Hai Doan-Nhu Lam Nguyen-Ngoc Xinjun Jiang |
| author_sort | Zhu Zhu |
| collection | DOAJ |
| description | The cosmopolitan algae Phaeocystis globosa forms harmful algal blooms frequently in a number of tropical and subtropical coastal regions in the past two decades. During the bloom, the giant colony, which is formed by P. globosa, is the dominant morphotype. However, the microenvironment and the microbial composition in the intracolonial fluid are poorly understood. Here, we used high-throughput 16S rRNA amplicon sequencing to examine the bacterial composition and predicted functions in intracolonial fluid. Compared with the bacterial consortia in ambient seawater, intracolonial fluids possessed the lower levels of microbial richness and diversity, implying selectivity of bacteria by the unique intracolonial microenvironment enclosed within the P. globosa polysaccharide envelope. The bacterial consortia in intracolonial fluid were dominated by Balneola (48.6% of total abundance) and Labrezia (28.5%). The bacteria and microbial function enriched in intracolonial fluid were involved in aromatic benzenoid compounds degradation, DMSP and DMS production and consumption, and antibacterial compounds synthesis. We suggest that the P. globosa colonial envelope allows for the formation of a specific microenvironment; thus, the unique microbial consortia inhabiting intracolonial fluid has close interaction with P. globosa cells, which may benefit colony development. |
| first_indexed | 2024-12-20T02:59:55Z |
| format | Article |
| id | doaj.art-7bde73631a094cd997178eae66758179 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-12-20T02:59:55Z |
| publishDate | 2021-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-7bde73631a094cd997178eae667581792022-12-21T19:55:47ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-09-011210.3389/fmicb.2021.737484737484Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosaZhu Zhu0Rui Meng1Walker O. Smith Jr.2Hai Doan-Nhu3Lam Nguyen-Ngoc4Xinjun Jiang5School of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaVietnam Academy of Science and Technology, Institute of Oceanography, Nha Trang, VietnamVietnam Academy of Science and Technology, Institute of Oceanography, Nha Trang, VietnamSchool of Oceanography, Shanghai Jiao Tong University, Shanghai, ChinaThe cosmopolitan algae Phaeocystis globosa forms harmful algal blooms frequently in a number of tropical and subtropical coastal regions in the past two decades. During the bloom, the giant colony, which is formed by P. globosa, is the dominant morphotype. However, the microenvironment and the microbial composition in the intracolonial fluid are poorly understood. Here, we used high-throughput 16S rRNA amplicon sequencing to examine the bacterial composition and predicted functions in intracolonial fluid. Compared with the bacterial consortia in ambient seawater, intracolonial fluids possessed the lower levels of microbial richness and diversity, implying selectivity of bacteria by the unique intracolonial microenvironment enclosed within the P. globosa polysaccharide envelope. The bacterial consortia in intracolonial fluid were dominated by Balneola (48.6% of total abundance) and Labrezia (28.5%). The bacteria and microbial function enriched in intracolonial fluid were involved in aromatic benzenoid compounds degradation, DMSP and DMS production and consumption, and antibacterial compounds synthesis. We suggest that the P. globosa colonial envelope allows for the formation of a specific microenvironment; thus, the unique microbial consortia inhabiting intracolonial fluid has close interaction with P. globosa cells, which may benefit colony development.https://www.frontiersin.org/articles/10.3389/fmicb.2021.737484/fullbacterial consortiacolonycolonial envelope16S rRNAmicroenvironmentPhaeocystis globosa |
| spellingShingle | Zhu Zhu Rui Meng Walker O. Smith Jr. Hai Doan-Nhu Lam Nguyen-Ngoc Xinjun Jiang Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa Frontiers in Microbiology bacterial consortia colony colonial envelope 16S rRNA microenvironment Phaeocystis globosa |
| title | Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa |
| title_full | Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa |
| title_fullStr | Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa |
| title_full_unstemmed | Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa |
| title_short | Bacterial Composition Associated With Giant Colonies of the Harmful Algal Species Phaeocystis globosa |
| title_sort | bacterial composition associated with giant colonies of the harmful algal species phaeocystis globosa |
| topic | bacterial consortia colony colonial envelope 16S rRNA microenvironment Phaeocystis globosa |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2021.737484/full |
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