Colonization time of plastisphere drives the dynamics of organic carbon stability and microbial communities in seagrass bed sediments
文献类型： 外文期刊
作者： Hou, Shuailing 1 ; Wang, Jun 1 ; Feng, Dan 1 ; Wu, Dongming 4 ; Chen, Shiquan 5 ; Fan, Jinluo 1 ; Luo, Mingguang 1 ; Deng, Hui 1 ; Yang, Xing 1 ; Luo, Jiwei 1 ; Zhao, Yuanyuan 1 ; Ge, Chengjun 1 ;
作者机构： 1.Hainan Univ, Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou 570228, Peoples R China
2.Hainan Univ, Haikou Key Lab Environm Toxicol, Haikou 570228, Peoples R China
3.Hainan Univ, Sch Environm Sci & Engn, Haikou 570228, Peoples R China
4.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Peoples R China
5.Hainan Acad Ocean & Fisheries Sci, Haikou 571126, Hainan, Peoples R China
6.Hainan Univ, Key Lab Environm Toxicol, Minist Educ, Haikou 570228, Peoples R China
关键词： Plastisphere; Seagrass bed sediments; Organic carbon stability; Colonization time; Bacterial community
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 492 卷
页码：
收录情况： SCI
摘要： Microplastic (MP) pollution in seagrass bed ecosystems has emerged as a significant global concern. However, the effects of plastisphere formation on organic carbon pools and microbial communities in these ecosystems remain unknown. We conducted a 56-day microcosm incubation experiment to study the dynamic changes in physicochemical characteristics, organic carbon fractions and stability, and bacterial community structure in seagrass bed sediments during the plastisphere formation process for polystyrene (PS) and polylactic acid (PLA). The results revealed significant weathering and biofilm formation on both PS and PLA. MPs altered the microbial community structure in seagrass bed sediments, leading to species turnover. Colonization time emerged as the key factor driving microbial community assembly, with ecological processes shifting from dispersal limitation to ecological drift in the plastisphere, while sediments maintained dispersal limitation as the dominant process. The formation of the plastisphere significantly influenced seagrass bed sediment microbial carbon (MBC) and organic carbon pool stability. MPs weathering negatively correlated with sediment properties but positively correlated with microbial communities, jointly modulating carbon pool stability. This study provided a new insight into the potential risks posed by MPs to carbon cycling and the ecological functioning of seagrass bed ecosystems.
- 相关文献
作者其他论文 更多>>
-
Foisc1 regulates growth, conidiation, sensitivity to salicylic acid, and pathogenicity of Fusarium oxysporum f. sp. cubense tropical race 4
作者：Guo, Lijia;Wang, Jun;Zhou, You;Liang, Changcong;Liu, Lei;Yang, Yang;Huang, Junsheng;Yang, Laying;Guo, Lijia;Wang, Jun;Zhou, You;Liang, Changcong;Liu, Lei;Yang, Yang;Huang, Junsheng;Yang, Laying;Guo, Lijia;Wang, Jun;Zhou, You;Liang, Changcong;Liu, Lei;Yang, Yang;Huang, Junsheng;Yang, Laying;Guo, Lijia;Wang, Jun;Zhou, You;Liang, Changcong;Liu, Lei;Yang, Yang;Huang, Junsheng;Yang, Laying
关键词：Vascular wilt of banana; Isochorismatase; Pathogenicity; Salicylic acid; Defense response; Fusaric acid biosynthesis
-
Recent Advances in Biochar-Based Hydrogel Composites: Preparation, Aquatic Environmental Applications, and Adsorption Mechanisms
作者：Zhao, Yuxin;Wang, Chaojie;Han, Qing;Fang, Zheng;Wang, Hailong;Gao, Yurong;Chen, Hanbo;Li, Jianhong;Yang, Xing;Chen, Junfeng
关键词：aquatic contaminants; encapsulation; co-pyrolysis; adsorption; mechanism
-
A Novel Large-Particle Slow-Release Fertilizer Improves Nutrient Use Efficiency and Yield of Cassava by Boundary Layer Limitation
作者：He, Cuicui;Wang, Hua;Huang, Jie;Wang, Dengfeng;Qin, Xindao;Zhang, Wen;Wu, Dongming;Jiu, Yuanda;Zhao, Min;Xie, Yi;Chen, Qingmian;Zhou, Rongfei;Li, Guichun;Xu, Minggang
关键词：large-particle slow-release fertilizer; slow-release performance; agronomic efficiency; kinetic modeling; nutrient transport
-
Bacillus velezensis Isolate X5 Stimulates the Resistance of Resistant and Susceptible Banana Varieties to Foc Through Different Mechanisms
作者：Xu, Yunlong;Wang, Jun;Liang, Changcong;Zhou, You;Guo, Lijia;Yang, Yang;Yang, Laying;Xu, Yunlong;Tian, Guangxiang
关键词：
Fusarium oxysporum f. sp.cubense race 4 (Foc4);Bacillus velezensis ; free amino acids; soluble sugar; transcriptome; disease resistance -
Bidirectional regulation of the brain-gut axis in Macaca mulatta: implications for wildlife conservation and experimentation
作者：Sun, Zewen;Wang, Jun;Sun, Ruiping;Yuan, Jingli;Sun, Zewen;Zhao, Jianguo;Sun, Zewen;Wang, Jun;Wang, Yanfang;Zhao, Jianguo;Yuan, Jingli;Liu, Baozhen;Zhao, Xinyuan;Cai, Keqi;Wang, Yanfang
关键词：gut microbiota; brain-gut axis;
Macaca mulatta ; wildlife conservation; experimentalization -
Distribution, origins, impact factors and ecological risks of metallic elements in the sediment from Changhua River estuary, Hainan Island, China
作者：Ma, Jiyong;Chen, Zeheng;Fu, Kaizhe;Bian, Dayu;Guo, Jianhua;Zhang, Shiyou;Xing, Zhuang;Jiang, Dongxu;Gou, You;Wu, Dongming;Wu, Dongming
关键词：sediments; metallic contamination; source apportionment; estuary area; Hainan Island
-
Micron-engineered phosphorus-rich biochar: A strategy for mitigating metalloid mobility, enhancing bacterial biomass, and improving rice (Oryza sativa L.) quality in antimony mining regions
作者：Chen, Hanbo;Li, Meng;Shan, Shengdao;Li, Jianhong;Li, Jiayi;Li, Jiayi;Fang, Zheng;Wang, Hailong;Sarmah, Ajit K.;Zhang, Xiaokai;Gao, Yurong;Yang, Xing;Liu, Yuxue;Chen, Chongjun
关键词：Ball milling; Biochar modification; Functionalized biochar; Heavy metals; Structural equation model
