Genome-Based Characterization of Plant-Associated Rhodococcus qingshengii RL1 Reveals Stress Tolerance and Plant–Microbe Interaction Traits

In this study we focused on the cluster with highest similarity to known secondary metabolite biosynthesis pathways

Theresa Kuhl; Soumitra Paul Chowdhury; Jenny Uhl; Michael Rothballer

2021

Scholarcy highlights

  • Anthropogenic activities over the past decades, including pollution with heavy metals, pesticides and chemical fertilizer, as well as improper soil exploitation coupled with climate change have led to immense global soil degradation
  • The second group harbors a mix of R. erythropolis and R. qingshengii strains
  • Average nucleotide identity values between all analyzed R. erythropolis or R. qingshengii genomes were higher than 94%
  • The study shows the remarkable genomic potential of the isolate R. qingshengii RL1 for tolerating various abiotic stresses, plant–microbe and microbe–microbe interactions, many of which could be confirmed by functional analysis in vitro
  • We provided phylogenetic evidence based on whole genome comparisons to justify a taxonomic separation of the R. erythropolis and R. qingshengii cluster and re-name some members of the R. erythropolis cluster
  • The gram-positive control strain Bacillus velezensis FZB42 could grow up to 7.5% NaCl in the medium and did not recover from medium with 15% NaCl
  • Further investigation of the quorum quenching ability against various plant–pathogenic bacteria could advance the understanding of the role of RL1 in biological control

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