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Lookup NU author(s): Dominic Kay, Dr James WoonORCiD, Dr Nadine NogralesORCiD, Professor Michaela Goodson, Dr Roshan MascarenhasORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2025 The Authors. The mangrove ecosystems are of great ecological importance found in tropical and subtropical coasts, including Malaysia. The microbial communities in the mangrove sediments play an indispensable role in maintaining homeostasis and supporting biodiversity. However, mangroves are facing various threats due to increasing anthropogenic activities. Thus, it is important to monitor the microbial community to improve our understanding of anthropogenic pressure on reshaping these ecosystems. This study examines the microbial community diversity in mangrove sediments of southern peninsular Malaysia. High-throughput MinION sequencing of the 16S rRNA gene was performed to compare the soil microbiome diversity in 35 samples from 8 different mangroves representing Sungai Sedili Kecil and Sungai Sedili Besar that flow into the South China Sea; Sungai Pulai, Sungai Melayu, Sungai Danga, Sungai Skudai and Sungai Johor that join the Straits of Johor; and Pulau Kukup from the Straits of Malacca. The metagenomic classification performed with 16S rRNA showed 2,573 taxa comprising 32 phyla. Total abundance analysis showed Pseudomonadota (67–69%), Bacteroidota (6–8%), Bacillota (5–8%), Campylobacterota (4–5%), Acidobacteriota (3–4%), Planctomycetota (2–4%) and Actinomycetota (1–2%) as the relatively common phyla. Alpha diversity indices revealed significantly higher richness in samples from mangroves of the South China Sea. Further, the ‘Shannon’ index showed a significant difference in diversity between Sungai Melayu and Sungai Pulai. Higher abundance of Burkholderiaceae, Bacillaceae and Enterobacteriaceae suggests a difference in the microbial community structure. This study stands as the first comprehensive analysis of microbial communities for future monitoring and conservation in these mangroves.
Author(s): Hebbar P, Han OB, Yan NX, Kay D, Chu KY, Woon JS-K, Lun PK, Kabekkodu SP, Prasad ASB, Prakash B, Nograles N, Kanakal MM, Goodson M, Nagaraja S, Mascarenhas R
Publication type: Article
Publication status: Published
Journal: Access Microbiology
Year: 2025
Volume: 7
Issue: 6
Online publication date: 18/06/2025
Acceptance date: 11/05/2025
Date deposited: 18/09/2025
ISSN (electronic): 2516-8290
Publisher: Microbiology Society
URL: https://doi.org/10.1099/acmi.0.000902.v3
DOI: 10.1099/acmi.0.000902.v3
Data Access Statement: The authors confirm that all supporting data and protocols have been provided within the article. The genomic raw reads files from this study are publicly available at the Sequence Read Archive of the National Center for Biotechnology Information under the study BioProject ID: PRJNA1139970. The following are the distinct identification numbers for sequence records. SRS24660329, SRS22117015, SRS22117016, SRS22117017, SRS22117018, SRS22117019, SRS22117020, SRS22117021, SRS22117022, SRS22117023, SRS22117024, SRS22117025, SRS22117026, SRS22117027, SRS22117028, SRS22117029, SRS22117030, SRS22117031, SRS22117032, SRS22117033, SRS22117034, SRS22117035, SRS22117036, SRS22117037, SRS22117038, SRS22117039, SRS22117040, SRS22117041, SRS22117042, SRS22117043, SRS22117044, SRS22117045, SRS22117046, SRS22117047, SRS22117048.
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