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Functional Genome Analysis of a Conditionally Pathogenic Rhizobacterial Strain, Pseudomonas putida AKMP7
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Functional Genome Analysis of a Conditionally Pathogenic Rhizobacterial Strain, Pseudomonas putida AKMP7
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Journal Article
Functional Genome Analysis of a Conditionally Pathogenic Rhizobacterial Strain, Pseudomonas putida AKMP7
2024
Overview
This manuscript reports the whole genome sequence of a conditionally pathogenic rhizobacterial strain, Pseudomonas putida AKMP7, which has been previously reported by us to be beneficial to Arabidopsis thaliana under well-watered conditions and pathogenic to the plant under water stress. As part of a study to understand this unique behavior, the whole genome sequence of this strain was analyzed. Based on the results, it was identified that the total length of the AKMP7 genome is 5,764,016 base pairs, and the total GC content of the genome is 62.93% (typical of P. putida). Using RAST annotation pipeline, it was identified that the genome has 5605 coding sequences, 80 repeat regions, 71 tRNA genes, and 22 rRNA genes. A total of 4487 functional proteins and 1118 hypothetical proteins were identified. Phylogenetic analysis has classified it as P. putida species, with a P value of 0.03. In order to identify close relatives of this strain, comparative genomics was performed with 30 other P. putida strains, taken from publicly available genome databases, using Average Nucleotide Identity (ANI) analysis. Whole genome comparison with these strains reveals that AKMP7 possesses Type-IV Secretion System (T4SS) with conjugative transfer functionality. Interestingly, the T4SS feature is absent in all the beneficial/harmless strains of P. putida that we analyzed. All the plant pathogenic bacteria that were analyzed had the T4SS feature in their genome, indicating its role in pathogenesis. This study aims to address important gaps in understanding the molecular mechanisms involved in the conditional/opportunistic pathogenesis of plant-associated, beneficial soil bacteria, using genomics approaches.
Publisher
Springer Nature B.V
Subject
