Shamsul Harumain, Zakuan Azizi and Noh, Abdul Latif and Sharif, Mohd. Faez and Abdul Hamid, Azzmer Azzar and M., Azrul Naim and Md Jani, Haza Hanurhaza and Zakariya, Khalilah and Ibrahim, Putri Haryati and Nizarudin, Norhanis Diyana and Othman, Rashidi and Tukiman, Izawati and Tajudin, Nur Shuhada and Zakaria, Zahiruddeen (2026) Unravelling microbial communities in the rhizosphere soil of selected dipterocarpaceae species through amplicon sequencing. In: Simposium Biologi Kebangsaan 2025, UKM.
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Abstract
The Dipterocarpaceae family, comprising nearly 700 species, is a dominant component of Southeast Asian tropical rainforest. In Malaysia, dipterocarps are widely distributed and serve as one of the essential tree families in the forest ecosystems. Their rhizosphere represents a unique microhabitat where complex interactions between roots, soils, and microbial communities occur. However, there are limited datasets on microbial diversity of Malaysian dipterocarp rhizosphere soil. This study aimed to unravel the microbial diversity of selected dipterocarp species (Dipterocarpus oblongifolius, Neobalanocarpus heimii, Shorea sumatrana, and Dryobalanops aromatica) across three environmentally different sites: the FRIM Dipterocarp Arboretum, Valencia (township), and Wetland Arboretum Centre (WAC) (nursery), using amplicon sequencing. Bacterial communities were dominated by Proteobacteria across all sites, with WAC showing significantly higher bacterial diversity (Shannon index). Eukaryotic communities were primarily fungal, dominated by Basidiomycota and Ascomycota, with WAC showing significantly higher eukaryotic diversity (Shannon index). Beta diversity analysis revealed distinct clustering patterns, with WAC harboring the most unique community structures for both bacteria and eukaryotes. This study reveals that site-specific conditions drive the microbial diversity and composition of dipterocarp rhizosphere soil.
| Item Type: | Proceeding Paper (Poster) |
|---|---|
| Uncontrolled Keywords: | Microbiome; Diversity; 16S; 18S; Dipterocarp; Nanopore Sequencing |
| Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QH Natural history > QH426 Genetics Q Science > QH Natural history > QH541.13 Ecology Q Science > QR Microbiology T Technology > TP Chemical technology > TP248.13 Biotechnology |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture Kulliyyah of Science > Department of Biotechnology |
| Depositing User: | Dr Zakuan Azizi Shamsul Harumain |
| Date Deposited: | 04 Aug 2026 21:07 |
| Last Update: | 04 Aug 2026 21:07 |
| Queue Number: | 2026-07-Q4429 |
| URI: | http://irep.iium.edu.my/id/eprint/129914 |
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