Spartina alterniflora invasion altered phosphorus retention and microbial phosphate solubilization of the Minjiang estuary wetland in southeastern China
Copyright © 2024 Elsevier Ltd. All rights reserved..
Spartina alterniflora invasion is considered a critical event affecting sediment phosphorus (P) availability and stock. However, P retention and microbial phosphate solubilization in the sediments invaded with or without S. alterniflora have not been fully investigated. In this study, a sequential fractionation method and high-throughput sequencing were used to analyze P transformation and the underlying microbial mechanisms in the sediments of no plant (NP) zone, transition (T) zone, and plant (P) zone. Results showed that except for organic phosphate (OP), total phosphate (TP), inorganic phosphate (IP), and available phosphate (AP) all followed a significant decrease trend from the NP site to the T site, and to the P site. The vertical decrease of TP, IP, and AP was also observed with an increase in soil depth. Among the six IP fractions, Fe-P, Oc-P, and Ca10-P were the predominant forms, while the presence of S. alterniflora resulted in an obvious P depletion except for Ca8-P and Al-P. Although S. alterniflora invasion did not significantly alter the alpha diversity of phosphate-solubilizing bacteria (PSB) harboring phoD gene, several PSB belonging to p_Proteobacteria, p_Planctomycetes, and p_Cyanobacteriota showed close correlations with P speciation and IP fractions. Further correlation analysis revealed that the reduced soil pH, soil TN and soil EC, and the increased soil TOC mediated by the invasion of S. alterniflora also significantly correlated to these PSB. Overall, this study elucidates the linkage between PSB and P speciation and provides new insights into understanding P retention and microbial P transformation in the coastal sediment invaded by S. alterniflora.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:358 |
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| Enthalten in: |
Journal of environmental management - 358(2024) vom: 08. Apr., Seite 120817 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Yan-Zhen [VerfasserIn] |
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| Links: |
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| Themen: |
Invasive plant |
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| Anmerkungen: |
Date Revised 09.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1016/j.jenvman.2024.120817 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM370830792 |
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| 520 | |a Spartina alterniflora invasion is considered a critical event affecting sediment phosphorus (P) availability and stock. However, P retention and microbial phosphate solubilization in the sediments invaded with or without S. alterniflora have not been fully investigated. In this study, a sequential fractionation method and high-throughput sequencing were used to analyze P transformation and the underlying microbial mechanisms in the sediments of no plant (NP) zone, transition (T) zone, and plant (P) zone. Results showed that except for organic phosphate (OP), total phosphate (TP), inorganic phosphate (IP), and available phosphate (AP) all followed a significant decrease trend from the NP site to the T site, and to the P site. The vertical decrease of TP, IP, and AP was also observed with an increase in soil depth. Among the six IP fractions, Fe-P, Oc-P, and Ca10-P were the predominant forms, while the presence of S. alterniflora resulted in an obvious P depletion except for Ca8-P and Al-P. Although S. alterniflora invasion did not significantly alter the alpha diversity of phosphate-solubilizing bacteria (PSB) harboring phoD gene, several PSB belonging to p_Proteobacteria, p_Planctomycetes, and p_Cyanobacteriota showed close correlations with P speciation and IP fractions. Further correlation analysis revealed that the reduced soil pH, soil TN and soil EC, and the increased soil TOC mediated by the invasion of S. alterniflora also significantly correlated to these PSB. Overall, this study elucidates the linkage between PSB and P speciation and provides new insights into understanding P retention and microbial P transformation in the coastal sediment invaded by S. alterniflora | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Invasive plant | |
| 650 | 4 | |a Minjiang estuary wetland | |
| 650 | 4 | |a Phosphate-solubilizing bacteria | |
| 650 | 4 | |a Phosphorus speciation and fraction | |
| 650 | 4 | |a Spartina alterniflora | |
| 700 | 1 | |a Chen, Qi-Qi |e verfasserin |4 aut | |
| 700 | 1 | |a Qiu, Yi-Fan |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Rong-Rong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Hong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jia-Bing |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Yong-He |e verfasserin |4 aut | |
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