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<p>Endophytes within medicinal plants significantly enhance host growth, bolster resistance to pathogens and environmental stresses, and modulate the synthesis of bioactive secondary metabolites, thereby augmenting the plants’ therapeutic properties. Metagenomic analysis using the Illumina MiSeq Platform provided a valuable tool for uncovering the intricate dynamics of endophytic bacterial communities within <i>Eclipta prostrata</i>. This sequencing method reveals the assembly, structure, and taxonomic hierarchy of both culturable and non-culturable endophytes in the plant sample. The data thus generated was submitted to the NCBI database with accession numbers PRJNA774106 and PRJNA774455. The predominant phyla in the above-ground sample (AGS) include Actinobacteria and Proteobacteria, whereas Firmicutes and Cyanobacteria were present in the below-ground sample (BGS). Alpha diversity measurements, notably the Chao and Shannon indices, revealed that the AGS displayed a higher value, suggesting that the endophytic diversity is higher in the above-ground part of the plant than in the BGS. The comprehensive metagenomic sequencing in conjunction with KEGG and eggnog databases provided valuable insights into the involvement of metabolic pathways such as bacterial chemotaxis, biofilm formation, quorum sensing, bacterial secretion system, and flagellar biosynthesis, responsible for the colonisation of endophytic bacteria in <i>E. prostrata</i>.</p>

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A Metagenomic Approach to Unravel the Taxonomic Diversity and Plant Colonising Genes of Endophytic Bacteria in Eclipta prostrata (L.) L.

  • 期刊论文

  • 发表日期：

    2026年4月17日

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  • Sreelakshmi Rajesh,
  • M. Anilkumar

摘要

Endophytes within medicinal plants significantly enhance host growth, bolster resistance to pathogens and environmental stresses, and modulate the synthesis of bioactive secondary metabolites, thereby augmenting the plants’ therapeutic properties. Metagenomic analysis using the Illumina MiSeq Platform provided a valuable tool for uncovering the intricate dynamics of endophytic bacterial communities within Eclipta prostrata. This sequencing method reveals the assembly, structure, and taxonomic hierarchy of both culturable and non-culturable endophytes in the plant sample. The data thus generated was submitted to the NCBI database with accession numbers PRJNA774106 and PRJNA774455. The predominant phyla in the above-ground sample (AGS) include Actinobacteria and Proteobacteria, whereas Firmicutes and Cyanobacteria were present in the below-ground sample (BGS). Alpha diversity measurements, notably the Chao and Shannon indices, revealed that the AGS displayed a higher value, suggesting that the endophytic diversity is higher in the above-ground part of the plant than in the BGS. The comprehensive metagenomic sequencing in conjunction with KEGG and eggnog databases provided valuable insights into the involvement of metabolic pathways such as bacterial chemotaxis, biofilm formation, quorum sensing, bacterial secretion system, and flagellar biosynthesis, responsible for the colonisation of endophytic bacteria in E. prostrata.