Plant identity shapes phyllosphere microbiome structure and abundance of genes involved in nutrient cycling

Jian Li, Ming-Kang Jin, Roy Neilson, Shi-Lin Hu, Yi-Jia Tang, Zhao Zhang, Fu-Yi Huang, Jing Zhang, Xiao-Ru Yang

Research output: Contribution to journalArticlepeer-review

Abstract

The phyllosphere is a fluctuant micro-environment habitat that harbors diverse microbial communities that have the potential to influence plant growth through their effect on host fitness. However, we know little about the driving factors of phyllosphere microbial functional traits, e.g., genes related to nutrient cycling and microbial community structure under anthropic disturbance. Here, we characterized phyllosphere microbial communities and the abundance of genes related to nutrient cycling from diverse plant species between urban and natural habitats. We measured leaf functional traits to investigate the potential drivers of the phyllosphere microbial profile. Results indicated that phyllosphere microbial communities differed significantly between urban and natural habitats, and that this variation was dependent upon plant species. Host plant species had a greater influence on the abundance of genes involved in nutrient cycling in the phyllosphere than habitat. In addition, phyllosphere microbial diversity and functional gene abundance were significantly correlated. Furthermore, host leaf functional traits (e.g., specific leaf area and nutrient content) were potential driving factors of both phyllosphere microbial community structure and the abundance of genes involved in nutrient cycling. These findings contribute to a better understanding of the phyllosphere microbiome and its biotic and abiotic controlling factors, which improves our understanding of plant-microbe interactions and their ecosystem functions under anthropic disturbance.

Original languageEnglish
Article number161245
Number of pages9
JournalScience of the Total Environment
Volume865
Early online date29 Dec 2022
DOIs
Publication statusE-pub ahead of print - 29 Dec 2022

Keywords

  • Habitats
  • Leaf nutrient
  • Microbial community
  • Functional genes
  • Plant species

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