Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage
The profiling of the composition and diversity of microbial communities in mangrove sediments allow for the understanding of blue carbon storage. This study investigated the downcore variation of microbial profiles and related carbon fixation pathways in mangrove sediments of Pulau Seribuat, Malaysi...
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Penerbit Universiti Kebangsaan Malaysia
2025
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| Online Access: | http://journalarticle.ukm.my/26440/1/SS%202.pdf http://journalarticle.ukm.my/26440/ https://www.ukm.my/jsm/english_journals/vol54num10_2025/contentsVol54num10_2025.html |
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| author | Nurul Aqeela, Nur Hidayah, Nabilah Khairi, Nur Hazlin Hazrin-Chong, Mohammad Rozaimi, |
| author_facet | Nurul Aqeela, Nur Hidayah, Nabilah Khairi, Nur Hazlin Hazrin-Chong, Mohammad Rozaimi, |
| author_sort | Nurul Aqeela, |
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| continent | Asia |
| country | Malaysia |
| description | The profiling of the composition and diversity of microbial communities in mangrove sediments allow for the understanding of blue carbon storage. This study investigated the downcore variation of microbial profiles and related carbon fixation pathways in mangrove sediments of Pulau Seribuat, Malaysia. 16s RNA sequencing was carried out on replicate cores in three depth layers. The bacterial phyla of Proteobacteria, Chloroflexi and Planctomycetota showed significant downcore variation within the sediment depths. Proteobacteria showed highest abundance in the top layer while Chloroflexi dominated the bottom layer. Statistical analysis indicated that Proteobacteria and Chloroflexi abundance were both significantly different between top and bottom layers, while the middle layer acted as a transition zone for the microbial community. Further analysis of predicted functional pathways indicated the prevalence of the Calvin-Benson-Bassham (CBB) cycle and the reverse tricarboxylic acid (rTCA) cycles throughout the three sediment layers. Although trends were observed in their abundance, the PERMANOVA tests showed no significant differences. These findings suggest that sediment microbial profile is influenced by other factors such as oxygen and nutrient availability, which in turn may affect the rates of carbon fixation. This suggests that the microbial community composition may serve as a potential indicator for processes within the blue carbon cycle, aiding in management of these ecosystems. |
| format | Article |
| id | my-ukm.journal.26440 |
| institution | Universiti Kebangsaan Malaysia |
| language | en |
| publishDate | 2025 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | eprints |
| spelling | my-ukm.journal.264402026-01-14T07:29:38Z http://journalarticle.ukm.my/26440/ Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage Nurul Aqeela, Nur Hidayah, Nabilah Khairi, Nur Hazlin Hazrin-Chong, Mohammad Rozaimi, The profiling of the composition and diversity of microbial communities in mangrove sediments allow for the understanding of blue carbon storage. This study investigated the downcore variation of microbial profiles and related carbon fixation pathways in mangrove sediments of Pulau Seribuat, Malaysia. 16s RNA sequencing was carried out on replicate cores in three depth layers. The bacterial phyla of Proteobacteria, Chloroflexi and Planctomycetota showed significant downcore variation within the sediment depths. Proteobacteria showed highest abundance in the top layer while Chloroflexi dominated the bottom layer. Statistical analysis indicated that Proteobacteria and Chloroflexi abundance were both significantly different between top and bottom layers, while the middle layer acted as a transition zone for the microbial community. Further analysis of predicted functional pathways indicated the prevalence of the Calvin-Benson-Bassham (CBB) cycle and the reverse tricarboxylic acid (rTCA) cycles throughout the three sediment layers. Although trends were observed in their abundance, the PERMANOVA tests showed no significant differences. These findings suggest that sediment microbial profile is influenced by other factors such as oxygen and nutrient availability, which in turn may affect the rates of carbon fixation. This suggests that the microbial community composition may serve as a potential indicator for processes within the blue carbon cycle, aiding in management of these ecosystems. Penerbit Universiti Kebangsaan Malaysia 2025 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/26440/1/SS%202.pdf Nurul Aqeela, and Nur Hidayah, and Nabilah Khairi, and Nur Hazlin Hazrin-Chong, and Mohammad Rozaimi, (2025) Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage. Sains Malaysiana, 54 (10). pp. 2353-2365. ISSN 0126-6039 https://www.ukm.my/jsm/english_journals/vol54num10_2025/contentsVol54num10_2025.html |
| spellingShingle | Nurul Aqeela, Nur Hidayah, Nabilah Khairi, Nur Hazlin Hazrin-Chong, Mohammad Rozaimi, Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title | Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title_full | Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title_fullStr | Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title_full_unstemmed | Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title_short | Localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| title_sort | localized downcore variation of microbial profiles in mangrove sediments and its role in blue carbon storage |
| url | http://journalarticle.ukm.my/26440/1/SS%202.pdf http://journalarticle.ukm.my/26440/ https://www.ukm.my/jsm/english_journals/vol54num10_2025/contentsVol54num10_2025.html |
| url_provider | http://journalarticle.ukm.my/ |