Determining Soil Microbial Communities and Their Influence on Ganoderma Disease Incidences in Oil Palm (Elaeis guineensis) via High-Throughput Sequencing.

摘要: Basal stem rot (BSR), caused by Ganoderma boninense, is the most devastating oil palm disease in South East Asia, costing US$500 million annually. Various soil physicochemical parameters have been associated with an increase BSR incidences. However, very little attention has directed to understanding relationship between microbiome and incidence fields. The prokaryotic eukaryotic microbial diversities of two coastal soils, Blenheim (Typic Quartzipsamment-calcareous shell deposits, light texture) low (1.9%) Bernam Endoaquept-non-acid sulfate) high (33.1%), were determined using 16S (V3-V4 region) 18S (V9 rRNA amplicon sequencing. Soil properties (pH, electrical conductivity, organic matter, nitrogen, phosphorus, cation exchange capacity, exchangeable cations, micronutrients, physical parameters) also analyzed for soils. Results revealed that comprises higher diversities, accompanied pH calcium content. was observed a relative abundance bacterial taxa suppression such as Calditrichaeota, Zixibacteria, GAL15, Omnitrophicaeota, Rokubacteria, AKYG587 (Planctomycetes), JdFR-76 (Calditrichaeota), Rubrobacter (Actinobacteria). In contrast, had proportion other taxa, Chloroflexi Acidothermus Cercomonas (Cercozoa) Calcarisporiella (Ascomycota) eukaryotes are abundant soil, while Uronema (Ciliophora) mammals present soil. Some reported previously disease-suppressive -conducive soils potential or disease-inducible bacteria. Furthermore, bacterivorous flagellates involved selection highly toxic biocontrol bacteria, which might contribute indirectly. results from this study may provide valuable information related community structures their association characteristics susceptibility Ganoderma.