Phenolic compound degradation by Pseudomonas syringae phylogroup 2 strains

Otto, Margot; Hammerbacher, Almuth; Petersen, Yolanda; Pierneef, Rian; Coutinho, Teresa A.

doi:10.1007/s42161-018-0077-z

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…Comparative genomics using these alignments reveals a region of the chromosome that putatively facilitates virulence in a woody host [20,21]. Termed the woody host and Pseudomonas species (WHOP) region, the cluster is composed of 14 open reading frames (ORFs) and includes genes for degradation of the phenolic monomers found in lignin [20,22,23]. While absent in all analyzed herbaceous pathovars, the WHOP region is also not essential for woody host pathogenicity and is absent from some woody host pathogens.…”

Section: Introductionmentioning

confidence: 99%

Isolation, Characterization, and Pathogenicity of Two Pseudomonas syringae Pathovars from Populus trichocarpa Seeds

et al. 2020

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Pseudomonas syringae is a ubiquitous plant pathogen, infecting both woody and herbaceous plants and resulting in devastating agricultural crop losses. Characterized by a remarkable specificity for plant hosts, P. syringae pathovars utilize a number of virulence factors including the type III secretion system and effector proteins to elicit disease in a particular host species. Here, two Pseudomonas syringae strains were isolated from diseased Populustrichocarpa seeds. The pathovars were capable of inhibiting poplar seed germination and were selective for the Populus genus. Sequencing of the newly described organisms revealed similarity to phylogroup II pathogens and genomic regions associated with woody host-associated plant pathogens, as well as genes for specific virulence factors. The host response to infection, as revealed through metabolomics, is the induction of the stress response through the accumulation of higher-order salicylates. Combined with necrosis on leaf surfaces, the plant appears to quickly respond by isolating infected tissues and mounting an anti-inflammatory defense. This study improves our understanding of the initial host response to epiphytic pathogens in Populus and provides a new model system for studying the effects of a bacterial pathogen on a woody host plant in which both organisms are fully genetically sequenced.

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Section: Introductionmentioning

confidence: 99%

Isolation, Characterization, and Pathogenicity of Two Pseudomonas syringae Pathovars from Populus trichocarpa Seeds

et al. 2020

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“…Several Ps strains have developed traits to overcome phenolic compound‐mediated defense strategies by phenolic compound degradation (Otto et al., 2018). Specific phenolic compounds may even enhance virulence by induction of syrB gene expression, which has been shown for phenyl‐jp‐D‐glucopyranoside, salicin, flavonoid glycosides, and phenolic p‐glucosides (e.g., arbutin; Cao et al., 2005; Mo & Gross 1991; Mo et al., 1995).…”

Section: The Role Of Nutrients In Shaping Interactions Between the Ba...mentioning

confidence: 99%

Liebig review: The role of mineral nutrients in the development of Pseudomonas syringae diseases—Lessons learned and implications for disease control in woody plants

Soethe,

Hulin,

Balasus

et al. 2024

J. Plant Nutr. Soil Sci.

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BackgroundThe plant pathogen Pseudomonas syringae (Ps) causes diseases in a broad range of hosts including important cash crops from several climate zones. In particular for woody crops, effective and environmentally friendly disease control strategies are not available. Although there is increasing evidence of a link between plant nutritional status and disease susceptibility, optimization of plant nutrition is often neglected in efforts to control Ps diseases. This review brings current knowledge on this topic together with the aim of facilitating the development of treatment recommendations in specific contexts.Literature reviewThe article consists of three parts. First, we compiled data on the impact of mineral nutrients on Ps disease severity in woody and herbaceous species. Next, we discuss how nutrients may be related to plant defense and/or Ps virulence. Last, we consider these findings in the context of woody hosts and give suggestions for future research.ConclusionsWe encourage a research focus on typical nutrient imbalances (deficiencies and surpluses) in specific orchard regions; testing the role of foliar fertilizers in spring (the period of highest infection risk); analyses of the interaction between nutrient supply and the microbiome in the phyllosphere; investigating the interaction between nutrient supply and other control measures, and the impact of nutrient supply on Ps diseases in the presence of other stress factors.

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Kinetics investigation of phenolic pollutant degradation via Serratia marcescens ABHI 001 and its application in wastewater treatment

Singh

Srivastava²,

Mishra³

et al. 2022

Chemosphere

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Phenolic compound degradation by Pseudomonas syringae phylogroup 2 strains

Cited by 3 publications

References 22 publications

Isolation, Characterization, and Pathogenicity of Two Pseudomonas syringae Pathovars from Populus trichocarpa Seeds

Isolation, Characterization, and Pathogenicity of Two Pseudomonas syringae Pathovars from Populus trichocarpa Seeds

Liebig review: The role of mineral nutrients in the development of Pseudomonas syringae diseases—Lessons learned and implications for disease control in woody plants

Kinetics investigation of phenolic pollutant degradation via Serratia marcescens ABHI 001 and its application in wastewater treatment

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