Mika Kuno | BI | 2018 |
Abstract:
Oil palm, or Elaeis guineensis, is a species of African palm that widely grow near the equatorial line or in tropical regions. Palm oil plays essential roles in several countries, such as Indonesia and Malaysia. Soil microbial community has played a vital role in soil ecosystem processes and the growth, development, and health of the plant. However, comparison of bacterial composition and diversity in oil palm plantations are rarely conducted. The study aimed to compare the bacterial community composition present in oil palm between other regions and, to understand how the soil chemical properties affect the soil metagenome of oil palm. Analysis using 16S rRNA metagenome data was conducted to determine taxonomy differences. In total six different plots, three plots from Indonesia and three plots from Malaysia were included in the study. Analysis of the metagenome data ware performed in USEARCH and visualization of ecological diversity, such as alpha and beta diversity, were performed using R. The dominant bacterial taxa in all investigated soils were Proteobacteria, Acidobacteria, Actinobacteria, and Firmicutes. Overall, oil palm soil metagenome from Indonesia and Malaysia were significantly different; this difference was correlated with changes in soil chemical characteristics such as pH value, total organic carbon, total nitrogen, C to N ratio, and phosphorus content. The alpha and beta diversity of the soil bacterial communities was higher in soil from Indonesia than in Malaysia. These results provide the first survey of differences in oil palm metagenome in Indonesia and Malaysia.
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Supervisor: Rizky Nurdiansyah
Contact: library@i3l.ac.id