Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons
Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a m...
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| Autor*in: |
Tiralerdpanich, Parichaya [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading - Li, Zhaochao ELSEVIER, 2019, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:289 ; year:2021 ; day:15 ; month:11 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.envpol.2021.117849 |
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ELV055194001 |
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| 245 | 1 | 0 | |a Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons |
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| 520 | |a Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. | ||
| 520 | |a Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. | ||
| 650 | 7 | |a Biodegradation rate |2 Elsevier | |
| 650 | 7 | |a Phenanthrene-degrading bacteria |2 Elsevier | |
| 650 | 7 | |a Mangrove sediment |2 Elsevier | |
| 650 | 7 | |a Phenanthrene |2 Elsevier | |
| 650 | 7 | |a Seasonal effect |2 Elsevier | |
| 700 | 1 | |a Nasaree, Sirawit |4 oth | |
| 700 | 1 | |a Pinyakong, Onruthai |4 oth | |
| 700 | 1 | |a Sonthiphand, Prinpida |4 oth | |
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10.1016/j.envpol.2021.117849 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001525.pica (DE-627)ELV055194001 (ELSEVIER)S0269-7491(21)01431-7 DE-627 ger DE-627 rakwb eng 690 VZ 50.31 bkl 56.11 bkl Tiralerdpanich, Parichaya verfasserin aut Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Biodegradation rate Elsevier Phenanthrene-degrading bacteria Elsevier Mangrove sediment Elsevier Phenanthrene Elsevier Seasonal effect Elsevier Nasaree, Sirawit oth Pinyakong, Onruthai oth Sonthiphand, Prinpida oth Enthalten in Elsevier Science Li, Zhaochao ELSEVIER Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading 2019 Amsterdam [u.a.] (DE-627)ELV00327988X volume:289 year:2021 day:15 month:11 pages:0 https://doi.org/10.1016/j.envpol.2021.117849 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.31 Technische Mechanik VZ 56.11 Baukonstruktion VZ AR 289 2021 15 1115 0 |
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10.1016/j.envpol.2021.117849 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001525.pica (DE-627)ELV055194001 (ELSEVIER)S0269-7491(21)01431-7 DE-627 ger DE-627 rakwb eng 690 VZ 50.31 bkl 56.11 bkl Tiralerdpanich, Parichaya verfasserin aut Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Biodegradation rate Elsevier Phenanthrene-degrading bacteria Elsevier Mangrove sediment Elsevier Phenanthrene Elsevier Seasonal effect Elsevier Nasaree, Sirawit oth Pinyakong, Onruthai oth Sonthiphand, Prinpida oth Enthalten in Elsevier Science Li, Zhaochao ELSEVIER Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading 2019 Amsterdam [u.a.] (DE-627)ELV00327988X volume:289 year:2021 day:15 month:11 pages:0 https://doi.org/10.1016/j.envpol.2021.117849 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.31 Technische Mechanik VZ 56.11 Baukonstruktion VZ AR 289 2021 15 1115 0 |
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10.1016/j.envpol.2021.117849 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001525.pica (DE-627)ELV055194001 (ELSEVIER)S0269-7491(21)01431-7 DE-627 ger DE-627 rakwb eng 690 VZ 50.31 bkl 56.11 bkl Tiralerdpanich, Parichaya verfasserin aut Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Biodegradation rate Elsevier Phenanthrene-degrading bacteria Elsevier Mangrove sediment Elsevier Phenanthrene Elsevier Seasonal effect Elsevier Nasaree, Sirawit oth Pinyakong, Onruthai oth Sonthiphand, Prinpida oth Enthalten in Elsevier Science Li, Zhaochao ELSEVIER Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading 2019 Amsterdam [u.a.] (DE-627)ELV00327988X volume:289 year:2021 day:15 month:11 pages:0 https://doi.org/10.1016/j.envpol.2021.117849 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.31 Technische Mechanik VZ 56.11 Baukonstruktion VZ AR 289 2021 15 1115 0 |
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10.1016/j.envpol.2021.117849 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001525.pica (DE-627)ELV055194001 (ELSEVIER)S0269-7491(21)01431-7 DE-627 ger DE-627 rakwb eng 690 VZ 50.31 bkl 56.11 bkl Tiralerdpanich, Parichaya verfasserin aut Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Biodegradation rate Elsevier Phenanthrene-degrading bacteria Elsevier Mangrove sediment Elsevier Phenanthrene Elsevier Seasonal effect Elsevier Nasaree, Sirawit oth Pinyakong, Onruthai oth Sonthiphand, Prinpida oth Enthalten in Elsevier Science Li, Zhaochao ELSEVIER Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading 2019 Amsterdam [u.a.] (DE-627)ELV00327988X volume:289 year:2021 day:15 month:11 pages:0 https://doi.org/10.1016/j.envpol.2021.117849 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.31 Technische Mechanik VZ 56.11 Baukonstruktion VZ AR 289 2021 15 1115 0 |
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10.1016/j.envpol.2021.117849 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001525.pica (DE-627)ELV055194001 (ELSEVIER)S0269-7491(21)01431-7 DE-627 ger DE-627 rakwb eng 690 VZ 50.31 bkl 56.11 bkl Tiralerdpanich, Parichaya verfasserin aut Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. Biodegradation rate Elsevier Phenanthrene-degrading bacteria Elsevier Mangrove sediment Elsevier Phenanthrene Elsevier Seasonal effect Elsevier Nasaree, Sirawit oth Pinyakong, Onruthai oth Sonthiphand, Prinpida oth Enthalten in Elsevier Science Li, Zhaochao ELSEVIER Structural failure performance of the encased functionally graded porous cylinder consolidated by graphene platelet under uniform radial loading 2019 Amsterdam [u.a.] (DE-627)ELV00327988X volume:289 year:2021 day:15 month:11 pages:0 https://doi.org/10.1016/j.envpol.2021.117849 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.31 Technische Mechanik VZ 56.11 Baukonstruktion VZ AR 289 2021 15 1115 0 |
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Variation of the mangrove sediment microbiomes and their phenanthrene biodegradation rates during the dry and wet seasons |
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Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. |
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Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. |
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Mangrove sediment is a major sink for phenanthrene in natural environments. Consequently, this study investigated the effects of seasonal variation on the biodegradation rates of low (150 mg kg−1), moderate (600 mg kg−1), and high (1200 mg kg−1) phenanthrene-contaminated mangrove sediments using a microcosm study and identified potential key phenanthrene-degrading bacteria using high throughput sequencing of 16 S rRNA gene and quantitative-PCR of the PAH-ring hydroxylating dioxygenase (PAH-RHDα) genes. The biodegradation rates of phenanthrene in all treatments were higher in the wet-season sediments (11.58, 14.51, and 8.94 mg kg−1 sediment day−1) than in the dry-season sediments (3.51, 12.56, and 5.91 mg kg−1 sediment day−1) possibly due to higher nutrient accumulation caused by rainfall and higher diversity of potential phenanthrene-degrading bacteria. The results suggested that the mangrove sediment microbiome significantly clustered according to season. Although Gram-negative phenanthrene-degrading bacteria (i.e., Anaerolineaceae, Marinobacter, and Rhodobacteraceae) played a key role in both dry and wet seasons, distinctly different phenanthrene-degrading bacterial taxa were observed in each season. Halomonas and Porticoccus were potentially responsible for the degradation of phenanthrene in the dry and wet seasons, respectively. The knowledge gained from this study contributes to the development of effective and rationally designed microbiome innovations for oil removal. |
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