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Lin L, Liu W, Zhang M, Lin X, Zhang Y, Tian Y. Different Height Forms of Spartina alterniflora Might Select Their Own Rhizospheric Bacterial Communities in Southern Coast of China. MICROBIAL ECOLOGY 2019; 77:124-135. [PMID: 29948019 DOI: 10.1007/s00248-018-1208-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
In the southernmost part of coast of China, two height forms of Spartina alterniflora, tall and short, have invaded Leizhou Peninsula within the last decade. However, the effect of different height forms of Spartina alterniflora on plant-microbe interaction has not been clarified. Here, the community structures of rhizosphere bacteria and the abundance of N- and S-cycling functional genes associated with selected S. alterniflora were investigated in the field and a common garden. The community structure of tall-form S. alterniflora was distinct from short-form S. alterniflora at OTU level in the field, even after transplantation into a common garden. The abundance of bacterial amoA, nirS, and nosZ in tall S. alterniflora was significantly greater than those in short S. alterniflora in the field; however, this difference disappeared in a 1-year common garden experiment. These results suggested that compared with the tall-form S. alterniflora, the rhizosphere of short-form S. alterniflora harbored fewer nitrification-denitrification related microorganisms, which might benefit from conserving N in an N limited habitat. Together, our results suggested that tall- and short-form S. alterniflora can host their specific rhizosphere microbial communities and had different strategies of N usage via selecting the composition of rhizosphere bacterial assemblages, which in turn might determine the growth and invasiveness of S. alterniflora in its introduced range.
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Affiliation(s)
- Li'an Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Wenwen Liu
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China
| | - Manping Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Xiaolan Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, 361102, China
| | - Yihui Zhang
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China.
| | - Yun Tian
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen, 361102, China.
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Cui X, Song W, Feng J, Jia D, Guo J, Wang Z, Wu H, Qi F, Liang J, Lin G. Increased nitrogen input enhances Kandelia obovata seedling growth in the presence of invasive Spartina alterniflora in subtropical regions of China. Biol Lett 2017; 13:rsbl.2016.0760. [PMID: 28052938 DOI: 10.1098/rsbl.2016.0760] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/09/2016] [Indexed: 11/12/2022] Open
Abstract
Mangroves in China are severely affected by the rapid invasion of the non-native species Spartina alterniflora Although many studies have addressed the possible impacts of S. alterniflora on the performance of mangrove seedlings, how excessive nitrogen (N) input due to eutrophication affects the interactions between mangrove species and S. alterniflora remains unknown. Here, we report the results from a mesocosm experiment using seedlings of the native mangrove species Kandelia obovata and the exotic S. alterniflora grown in monoculture and mixed culture under no nitrogen addition and nitrogen (N) addition treatments for 18 months. Without N addition, the presence of S. alterniflora inhibited the growth of K. obovata seedlings. Excessive N addition significantly increased the growth rate of K. obovata in both cultures. However, the positive and significantly increasing relative interaction intensity index under excessive N input suggested that the invasion of S. alterniflora could favour the growth of K. obovata under eutrophication conditions. Our results imply that excessive N input in southeastern China can increase the competitive ability of mangrove seedlings against invasive S. alterniflora.
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Affiliation(s)
- Xiaowei Cui
- Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing 100000, People's Republic of China.,Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Weimin Song
- Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing 100000, People's Republic of China
| | - Jianxiang Feng
- Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Dai Jia
- Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing 100000, People's Republic of China
| | - Jiemin Guo
- Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Zhonglei Wang
- Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Hao Wu
- Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Fei Qi
- Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
| | - Jie Liang
- Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing 100000, People's Republic of China
| | - Guanghui Lin
- Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua University, Beijing 100000, People's Republic of China .,Division of Ocean Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518000, People's Republic of China
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