Impact of Long-Term Paddy Monoculture on Soil Microbial Diversity and Soil Macronutrients

Muhammad Imran Jamaludin; Mohd Fadzli Ahmad; Hasdianty Abdullah; Tuan Badlishah Tuan Jusoh; Mohd Noor Mat Isa; Nor Suhaila Yaacob

doi:10.33102/mjosht.513

Authors

Muhammad Imran Jamaludin Department of Science and Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia.
Mohd Fadzli Ahmad Institute of BioIT Selangor, Universiti Selangor, Jalan Zirkon A/7A, Seksyen 7, 40000, Shah Alam, Selangor, Malaysia.
Hasdianty Abdullah Institute of BioIT Selangor, Universiti Selangor, Jalan Zirkon A/7A, Seksyen 7, 40000, Shah Alam, Selangor, Malaysia.
Tuan Badlishah Tuan Jusoh Department of Science and Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia.
Mohd Noor Mat Isa Malaysia Genome and Vaccine Institute, National Institute of Biotechnology Malaysia, Jalan Bangi, Kajang 43000, Selangor, Malaysia.
Nor Suhaila Yaacob Department of Science and Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia.

DOI:

https://doi.org/10.33102/mjosht.513

Keywords:

Paddy monoculture, Soil health, Metagenomics, Microbial diversity, Nutrient cycling, Tanjung Karang

Abstract

This study investigated the long-term impacts of paddy monoculture on soil health in Tanjung Karang, Malaysia, through integrated physicochemical and metagenomic analyses, with comparisons to a pristine Raja Musa Forest Reserve (RMFR) reference site. Our findings demonstrate that prolonged monoculture significantly alters soil physicochemical properties of nitrogen, phosphorus, and potassium, thereby creating a distinct edaphic environment. Metagenomic analyses revealed a substantial increase in microbial diversity and richness in monocultured paddy soils compared to RMFR, with specific taxonomic groups becoming dominant. Crucially, functional annotation highlighted significant shifts in the abundance of genes associated with nitrogen, phosphorus, and potassium metabolism, underscoring the adaptive responses of the soil microbiome to continuous cultivation pressures and their influence on critical nutrient cycling processes.

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Author Biographies

Muhammad Imran Jamaludin, Department of Science and Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia.

Postgraduate Student
Nor Suhaila Yaacob, Department of Science and Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia.

Assoc. Prof of Microbiology

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