Liew, Kok Jun and Shahar, Saleha and Shamsir, Mohd Shahir and Shaharuddin, Nawal Binti and Liang, Chee Hung and Chan, Kok Gan and Pointing, Stephen Brian and Sani, Rajesh Kumar and Goh, Kian Mau (2024) Integrating multi-platform assembly to recover MAGs from hot spring biofilms: insights into microbial diversity, biofilm formation, and carbohydrate degradation. Environmental Microbiome, 19 (1). p. 29. ISSN 2524-6372, DOI https://doi.org/10.1186/s40793-024-00572-7.
Full text not available from this repository.Abstract
Background Hot spring biofilms provide a window into the survival strategies of microbial communities in extreme environments and offer potential for biotechnological applications. This study focused on green and brown biofilms thriving on submerged plant litter within the Sungai Klah hot spring in Malaysia, characterised by temperatures of 58-74 degrees C. Using Illumina shotgun metagenomics and Nanopore ligation sequencing, we investigated the microbial diversity and functional potential of metagenome-assembled genomes (MAGs) with specific focus on biofilm formation, heat stress response, and carbohydrate catabolism.Results Leveraging the power of both Illumina short-reads and Nanopore long-reads, we employed an Illumina-Nanopore hybrid assembly approach to construct MAGs with enhanced quality. The dereplication process, facilitated by the dRep tool, validated the efficiency of the hybrid assembly, yielding MAGs that reflected the intricate microbial diversity of these extreme ecosystems. The comprehensive analysis of these MAGs uncovered intriguing insights into the survival strategies of thermophilic taxa in the hot spring biofilms. Moreover, we examined the plant litter degradation potential within the biofilms, shedding light on the participation of diverse microbial taxa in the breakdown of starch, cellulose, and hemicellulose. We highlight that Chloroflexota and Armatimonadota MAGs exhibited a wide array of glycosyl hydrolases targeting various carbohydrate substrates, underscoring their metabolic versatility in utilisation of carbohydrates at elevated temperatures.Conclusions This study advances understanding of microbial ecology on plant litter under elevated temperature by revealing the functional adaptation of MAGs from hot spring biofilms. In addition, our findings highlight potential for biotechnology application through identification of thermophilic lignocellulose-degrading enzymes. By demonstrating the efficiency of hybrid assembly utilising Illumina-Nanopore reads, we highlight the value of combining multiple sequencing methods for a more thorough exploration of complex microbial communities.
| Item Type: | Article |
|---|---|
| Funders: | Malaysia Fundamental Research Grant Scheme (FRGS) |
| Uncontrolled Keywords: | Hybrid assembly; Lignocellulose degradation; Metagenome-assembled genomes; Microbial mat; Thermophile |
| Subjects: | Q Science > QR Microbiology |
| Divisions: | Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Sep 2024 02:10 |
| Last Modified: | 19 Sep 2024 02:10 |
| URI: | http://eprints.um.edu.my/id/eprint/45248 |
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