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Ma C, Peng C, Fu L, Ren C, Liu X, Liu Z, Qin S, Zhong Z. Phycosphere bacterial disturbance of Saccharina japonica caused by white rot disease relates to seawater nutrients. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:37245-37255. [PMID: 38767795 DOI: 10.1007/s11356-024-33707-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
In mid-November 2021, there were large areas of white rot disease on cultivated Saccharina japonica in Rongcheng City, China, and diseases were undetected on Sargassum horneri and Porphyra yezoensis. The disturbance direction of bacterial community in the phycosphere after disease outbreak and the relationship with seawater nutrients remain unclear. Here, in situ studies of bacterial community in the non-diseased and diseased areas (Shawo and Dongchu islands) and seawater nutrient levels were carried out. 16S rRNA sequencing showed that the bacterial richness of the studied seaweeds increased in the diseased area. Only in S. japonica, Algitalea outcompeted abundant primary bacteria with probiotic relationships to the host of the non-diseased area, and dominated in the diseased area (17.6% of the total abundance). Nitrogen and phosphorus levels in seawater were 57.8% and 19.6% higher in the non-diseased area than those in the diseased area, respectively, and were strongly correlated with the phycosphere bacteria at the family level of S. japonica. There was no difference in potential pathogenicity between the two areas, while positive signal communications decreased, and nitrogen cycle, chemoheterotrophy, and cellulolysis increased in the diseased area compared to the non-diseased area. Overall, white rot disease caused a structural disturbance in phycosphere bacterial community of S. japonica that related to seawater nutrient levels. Enriched degraders and altered bacterial community functions may exacerbate the disease. This evaluation will provide information for white rot disease management to prevent and mitigate the occurrence of S. japonica outbreaks.
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Affiliation(s)
- Chen Ma
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, College of Oceanology, Hainan University, Haikou, 570228, Hainan, China
| | - Chengxiang Peng
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
| | - Longwen Fu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
| | - Chenggang Ren
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
| | - Xintian Liu
- Weihai Oceanic Development Research Institute, Weihai, 264200, Shandong, China
| | - Zhengyi Liu
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
| | - Song Qin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China
| | - Zhihai Zhong
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, Shandong, China.
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Castorani MCN, Bell TW, Walter JA, Reuman D, Cavanaugh KC, Sheppard LW. Disturbance and nutrients synchronise kelp forests across scales through interacting Moran effects. Ecol Lett 2022; 25:1854-1868. [PMID: 35771209 PMCID: PMC9541195 DOI: 10.1111/ele.14066] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/20/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022]
Abstract
Spatial synchrony is a ubiquitous and important feature of population dynamics, but many aspects of this phenomenon are not well understood. In particular, it is largely unknown how multiple environmental drivers interact to determine synchrony via Moran effects, and how these impacts vary across spatial and temporal scales. Using new wavelet statistical techniques, we characterised synchrony in populations of giant kelp Macrocystis pyrifera, a widely distributed marine foundation species, and related synchrony to variation in oceanographic conditions across 33 years (1987-2019) and >900 km of coastline in California, USA. We discovered that disturbance (storm-driven waves) and resources (seawater nutrients)-underpinned by climatic variability-act individually and interactively to produce synchrony in giant kelp across geography and timescales. Our findings demonstrate that understanding and predicting synchrony, and thus the regional stability of populations, relies on resolving the synergistic and antagonistic Moran effects of multiple environmental drivers acting on different timescales.
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Affiliation(s)
- Max C. N. Castorani
- Department of Environmental SciencesUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Tom W. Bell
- Department of Applied Ocean Physics & EngineeringWoods Hole Oceanographic InstitutionWoods HoleMassachusettsUSA
- Earth Research InstituteUniversity of CaliforniaSanta BarbaraCaliforniaUSA
| | - Jonathan A. Walter
- Department of Environmental SciencesUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Daniel C. Reuman
- Department of Ecology and Evolutionary BiologyUniversity of KansasLawrenceKansasUSA
- Center for Ecological ResearchUniversity of KansasLawrenceKansasUSA
- Laboratory of PopulationsRockefeller UniversityNew YorkNew YorkUSA
| | - Kyle C. Cavanaugh
- Department of GeographyUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Lawrence W. Sheppard
- Department of Ecology and Evolutionary BiologyUniversity of KansasLawrenceKansasUSA
- Marine Biological Association of the United KingdomPlymouthUK
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