First Report of Bacterial Soft Rot on <i>Syngonium podophyllum</i> Caused by <i>Pectobacterium aroidearum</i> in China

Xu, Peng; Wei, Dan; Li, Z. P.; Qin, C. X.; Li, X.; Lin, Chunhua; Liu, W. B.

doi:10.1094/pdis-03-20-0552-pdn

Cited by 7 publications

(9 citation statements)

References 4 publications

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“…P . aroidearum can infect multiple monocotyledonous and dicotyledonous plant species, especially from the families Araceae and Solanaceae such as Zantedeschia aethiopica , S. podophyllum , A. konjac , C. pepo and Solanum tuberosum ( Wei et al, 2020 ; Xu et al, 2020 ; Toth et al, 2021a ). Our in vitro pathogenicity tests were the first to show that P .…”

Section: Discussionmentioning

confidence: 99%

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Analysis of the Taxonomy, Synteny, and Virulence Factors for Soft Rot Pathogen Pectobacterium aroidearum in Amorphophallus konjac Using Comparative Genomics

Zhang

Chu

et al. 2022

Front. Microbiol.

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Bacterial soft rot is a devastating disease for a wide range of crops, vegetables, and ornamental plants including konjac (Amorphophallus konjac). However, the pangenome and genomic plasticity of the konjac soft rot pathogens is little explored. In this study, we reported the complete genome sequences of 11 bacterial isolates that can cause typical soft rot symptoms in konjac by in vitro and in vivo pathogenicity tests. Based on in silico DNA–DNA hybridization, average nucleotide identity and phylogenomic analysis, all 11 isolates were determined to be Pectobacterium aroidearum. In addition, synteny analysis of these genomes revealed considerable chromosomal inversions, one of which is triggered by homologous recombination of ribose operon. Pangenome analysis and COG enrichment analysis showed that the pangenome of P. aroidearum is open and that accessory genes are enriched in replication, recombination, and repair. Variations in type IV secretion system and type VI secretion system were found, while plant cell wall degrading enzymes were conserved. Furthermore, sequence analyses also provided evidence for the presence of a type V secretion system in Pectobacterium. These findings advance our understanding of the pathogenicity determinants, genomic plasticity, and evolution of P. aroidearum.

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Section: Discussionmentioning

confidence: 99%

“…In recent years, P . aroidearum was also reported to cause soft rot in Chinese cabbage ( Xie et al, 2018 ), Cucurbita pepo ( Moraes et al, 2017 ), Syngonium podophyllum ( Xu et al, 2020 ) and Olecranon Honey Peach ( Liang et al, 2022 ). It should be noted that P .…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Taxonomy, Synteny, and Virulence Factors for Soft Rot Pathogen Pectobacterium aroidearum in Amorphophallus konjac Using Comparative Genomics

Zhang

Chu

et al. 2022

Front. Microbiol.

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“…In previous studies, bacterial soft rot disease was caused by P. aroidearum in calla (Zantedeschia aethiopica; Nabhan et al, 2013), potato (Solanum tuberosum;Moretti et al, 2016), Chinese cabbage (Brassica rapa; Xie et al, 2017), zucchini (Cucurbita pepo; Moraes et al, 2017), konjac (Amorphophallus konjac; Sun et al, 2019), pepper (Capsicum annuum; Moraes et al, 2020), and carrot (Daucus carota; Tang et al, 2021). In our previous research, P. aroidearum as a pathogen on S. podophyllum was found in China (Xu et al, 2020). It is important to prevent the spread of this pathogen because many ornamental and edible plant species are susceptible to P. aroidearum.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, planting patterns and storage conditions are not applicable for control of the disease (Yaganza et al, 2014). Bacterial strain L6, isolated from Syngonium podophyllum soft rot samples in Hainan Province, was recognized as P. aroidearum (Xu et al, 2020). There is a shortage for wholegenome data of P. aroidearum, which seriously hinders research on classification and pathogenesis of Pectobacterium.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the genome annotation and comparative genomics analysis provided a foundation for a better understanding of the genomic structure of P. aroidearum and particularly offered information for the discovery of potential pathogenic factors and the development of more effective strategies against this pathogen. (Xu et al, 2020). The putative pathogen was re-inoculated to confirm its pathogenicity in the incubator and field on the leaves of S. podophyllum.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Taxonomy and Pathogenic Factors of Pectobacterium aroidearum L6 Using Whole-Genome Sequencing and Comparative Genomics

Wang

Qin

et al. 2021

Front. Microbiol.

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Soft rot pectobacteria are devastating plant pathogens with a global distribution and a broad host range. Pectobacterium aroidearum L6, previously isolated from leaves of Syngonium podophyllum, is a pectolytic bacterial pathogen that causes typical soft rot on S. podophyllum. There is a shortage for genome data of P. aroidearum, which seriously hinders research on classification and pathogenesis of Pectobacterium. We present here the complete genome sequence of P. aroidearum L6. The L6 strain carries a single 4,995,896-bp chromosome with 53.10% G + C content and harbors 4,306 predicted protein-coding genes. We estimated in silico DNA–DNA hybridization and average nucleotide identity values in combination with the whole-genome-based phylogeny from 19 Pectobacterium strains including P. aroidearum L6. The results showed that L6 and PC1 formed a population distinct from other populations of the Pectobacterium genus. Phylogenetic analysis based on 16S rRNA and genome sequences showed a close evolutionary relationship among Pectobacterium species. Overall, evolutionary analysis showed that L6 was in the same branch with PC1. In comparison with 18 Pectobacterium spp. reference pathogens, strain L6 had 2,712 gene families, among which 1,632 gene families were identified as orthologous to those strains, as well as 1 putative unique gene family. We discovered 478 genes, 10.4% of the total of predicted genes, that were potentially related to pathogenesis using the Virulence Factors of Pathogenic Bacteria database. A total of 25 genes were related to toxins, 35 encoded plant cell-wall degrading enzymes, and 122 were involved in secretion systems. This study provides a foundation for a better understanding of the genomic structure of P. aroidearum and particularly offers information for the discovery of potential pathogenic factors and the development of more effective strategies against this pathogen.

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First report of Colletotrichum siamense and C. tropicale causing anthracnose of Syngonium podophyllum in China

Cui,

Sun,

et al. 2025

Crop Protection

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First Report of Bacterial Soft Rot on Syngonium podophyllum Caused by Pectobacterium aroidearum in China

Cited by 7 publications

References 4 publications

Analysis of the Taxonomy, Synteny, and Virulence Factors for Soft Rot Pathogen Pectobacterium aroidearum in Amorphophallus konjac Using Comparative Genomics

Analysis of the Taxonomy, Synteny, and Virulence Factors for Soft Rot Pathogen Pectobacterium aroidearum in Amorphophallus konjac Using Comparative Genomics

Analysis of the Taxonomy and Pathogenic Factors of Pectobacterium aroidearum L6 Using Whole-Genome Sequencing and Comparative Genomics

First report of Colletotrichum siamense and C. tropicale causing anthracnose of Syngonium podophyllum in China

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