Prokaryotic biodiversity in matured oil palm plantation compared to logged-over and primary forest in deep peat Sarawak Malaysia

Mohd Shawal Thakib Maidin, . and Sakinah Safari, . and Nur Aziemah Abu Ghani, . and Sharifah Azura Syed Ibrahim, . and Shamsilawani Ahamed Bakeri, . and Mohamed Mazmira Mohd Masri, . and Siti Ramlah Ahmad Ali, . Prokaryotic biodiversity in matured oil palm plantation compared to logged-over and primary forest in deep peat Sarawak Malaysia. pp. 451-463. ISSN 1511-2780

Soil microbes are the unseen living organisms which are involved in various roles for oil palm productivity. Matured oil palm plantation peat soil may be inhabited by different bacterial populations compared to logged-over and primary forest. Thus conversion of peat forests into oil palm plantations might cause changes in the prokaryotic population in soil. The differences in the prokaryotic population were analysed to assess the profile of the prokaryotic population in each ecosystem. In this study Denaturing Gradient Gel Electrophoresis of the purified 16 rDNA amplicon (16S PCR-DGGE) was analysed. Berger-Parker and Shannon-Weaver Species Index indicated that Durafarm Plantation DF (0.10 8.05) had the most diverse soil population followed by Maludam primary forest MD (0.11 7.75) and Cermat Ceria loggedover forest CC (0.19 7.63). The 16S rDNA sequence analysis showed that all ecosystems were dominated by unclassified Bacteria (62 0.65 69) followed by Acidobacteria (8 0.19 4) Actinobacteria (8 0.06 12) -Proteobacteria (8 0.03 8) and Firmicutes (5 0.02 2) respectively for MD CC and DF. Increased number of species was recorded in Durafarm Plantation with the emergence of the forest microbes such as Acidipila rosea Acidimicrobium sp. Actinomycete sp. Mycobacterium sp. Afipia sp. Acetobacteraceae bacterium Rhizobium sp. Rhodoplanes sp. and Sphingomonadaceae bacterium. It is interesting to note that planting oil palm on deep peat can assist in rejuvenating some bacterial population that were missing during forest clearing and thus contributing to the improvement of soil bacterial biodiversity.

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Abstract

Soil microbes are the unseen living organisms which are involved in various roles for oil palm productivity. Matured oil palm plantation peat soil may be inhabited by different bacterial populations compared to logged-over and primary forest. Thus conversion of peat forests into oil palm plantations might cause changes in the prokaryotic population in soil. The differences in the prokaryotic population were analysed to assess the profile of the prokaryotic population in each ecosystem. In this study Denaturing Gradient Gel Electrophoresis of the purified 16 rDNA amplicon (16S PCR-DGGE) was analysed. Berger-Parker and Shannon-Weaver Species Index indicated that Durafarm Plantation DF (0.10 8.05) had the most diverse soil population followed by Maludam primary forest MD (0.11 7.75) and Cermat Ceria loggedover forest CC (0.19 7.63). The 16S rDNA sequence analysis showed that all ecosystems were dominated by unclassified Bacteria (62 0.65 69) followed by Acidobacteria (8 0.19 4) Actinobacteria (8 0.06 12) -Proteobacteria (8 0.03 8) and Firmicutes (5 0.02 2) respectively for MD CC and DF. Increased number of species was recorded in Durafarm Plantation with the emergence of the forest microbes such as Acidipila rosea Acidimicrobium sp. Actinomycete sp. Mycobacterium sp. Afipia sp. Acetobacteraceae bacterium Rhizobium sp. Rhodoplanes sp. and Sphingomonadaceae bacterium. It is interesting to note that planting oil palm on deep peat can assist in rejuvenating some bacterial population that were missing during forest clearing and thus contributing to the improvement of soil bacterial biodiversity.

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Item Type:	Article
AGROVOC Term:	Oil palm
AGROVOC Term:	Soil sampling
AGROVOC Term:	Peat soils
AGROVOC Term:	Plantation crops
AGROVOC Term:	Extraction
AGROVOC Term:	Polymerase chain reaction
AGROVOC Term:	Phylogeny
AGROVOC Term:	Microbial properties
AGROVOC Term:	Biodiversity
AGROVOC Term:	Soil fertility
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24706

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