Fatty acid signatures of sediment microbial community in the chronically polluted mangrove ecosystem
Copyright © 2021 Elsevier Ltd. All rights reserved..
Phospholipid fatty acid (PLFA) analysis was used to examine variation in the distribution of microbial communities in heavily polluted mangrove sediments of Thane creek, west coast of India. A total of 40 individual PLFAs representing 11 functional groups were identified in the sediment and were mainly dominated by saturated fatty acids (anaerobic prokaryotes) >50%. Significant dominance of PUFA, 16:3 ω6c (34.2%) indicators of micro-eukaryotes, in subsurface depth (p < 0.05) suggests input from the remnants of marine microalgae. Declined mean relative abundance of fungi (<6%) and actinomycetes (<1%) were detected in the sediment indicating their sensitivity to anthropic stressors. Homogenous profile of microbial diversity indicating active bioturbation. Cumulative metabolic stress evident from SAT/MUFA (>1), B/F (>1) and G+/G- (<1) ratio and prolonged hypoxia to be prevalent in the creek during the study. In conclusion, PLFA signatures can thus be used as potential biomarkers of environmental monitoring and proxy for interpreting ecosystem health.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:172 |
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| Enthalten in: |
Marine pollution bulletin - 172(2021) vom: 01. Nov., Seite 112885 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Semanti, P [VerfasserIn] |
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| Links: |
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| Themen: |
Anthropic stress indicators |
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| Anmerkungen: |
Date Completed 27.10.2021 Date Revised 27.10.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.marpolbul.2021.112885 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM330041339 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Phospholipid fatty acid (PLFA) analysis was used to examine variation in the distribution of microbial communities in heavily polluted mangrove sediments of Thane creek, west coast of India. A total of 40 individual PLFAs representing 11 functional groups were identified in the sediment and were mainly dominated by saturated fatty acids (anaerobic prokaryotes) >50%. Significant dominance of PUFA, 16:3 ω6c (34.2%) indicators of micro-eukaryotes, in subsurface depth (p < 0.05) suggests input from the remnants of marine microalgae. Declined mean relative abundance of fungi (<6%) and actinomycetes (<1%) were detected in the sediment indicating their sensitivity to anthropic stressors. Homogenous profile of microbial diversity indicating active bioturbation. Cumulative metabolic stress evident from SAT/MUFA (>1), B/F (>1) and G+/G- (<1) ratio and prolonged hypoxia to be prevalent in the creek during the study. In conclusion, PLFA signatures can thus be used as potential biomarkers of environmental monitoring and proxy for interpreting ecosystem health | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Anthropic stress indicators | |
| 650 | 4 | |a Chemotaxonomic signatures | |
| 650 | 4 | |a Diagnostic PLFA | |
| 650 | 4 | |a G(+)/G(–) | |
| 650 | 4 | |a Mangrove sediment | |
| 650 | 4 | |a Microbial lipid profile | |
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| 650 | 7 | |a Phospholipids |2 NLM | |
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| 700 | 1 | |a Purvaja, R |e verfasserin |4 aut | |
| 700 | 1 | |a Ramesh, R |e verfasserin |4 aut | |
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