Sonia Humphris
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View article: Pectobacterium atrosepticum SCRI1043 flagella mediate adherence to potato plants indirectly through motility
Pectobacterium atrosepticum SCRI1043 flagella mediate adherence to potato plants indirectly through motility Open
Flagella are widely distributed appendages in bacteria with well-characterized functions in motility and chemotaxis. They also interact directly with hosts and, due to their ubiquity, are potent immune elicitors for hosts from both the pla…
View article: Balancing the scales: assessing the impact of irrigation and pathogen burden on potato blackleg disease and soil microbial communities
Balancing the scales: assessing the impact of irrigation and pathogen burden on potato blackleg disease and soil microbial communities Open
Background Understanding the interaction between environmental conditions, crop yields, and soil health is crucial for sustainable agriculture in a changing climate. Management practices to limit disease are a balancing act. For example, i…
View article: Total mRNA sequence dataset from Pectobacterium atrosepticum colonising potato or radish roots
Total mRNA sequence dataset from Pectobacterium atrosepticum colonising potato or radish roots Open
Pectobacterium atrosepticum (Pba) is a gram-negative bacterium that causes blackleg and tuber soft rot of potato but can also asymptomatically colonise other (non-host) plant species. The aim of this study was to investigate the mol…
View article: Total Mrna Sequence Dataset from Pectobacterium Atrosepticum Colonising Potato or Radish Roots
Total Mrna Sequence Dataset from Pectobacterium Atrosepticum Colonising Potato or Radish Roots Open
View article: Balancing the scales: Impact of irrigation and pathogen burden on potato blackleg disease and soil microbial communities
Balancing the scales: Impact of irrigation and pathogen burden on potato blackleg disease and soil microbial communities Open
Understanding the interaction between environmental conditions, crop yields, and soil health is crucial for sustainable agriculture in a changing climate. Management practices to limit disease are a balancing act. For example, in potato pr…
View article: Intraspecies-Resolution Metabarcoding: automated primer design and a plant pathology case study
Intraspecies-Resolution Metabarcoding: automated primer design and a plant pathology case study Open
We present results demonstrating species-specificity and sub-species resolution by novel, automatically-designed metabarcoding primers for environmental DNA analysis. Conventional metabarcoding remains a cornerstone of rapid, high-throughp…
View article: <i>In situ</i>control of root–bacteria interactions using optical trapping in transparent soil
<i>In situ</i>control of root–bacteria interactions using optical trapping in transparent soil Open
Bacterial attachment on root surfaces is an important step preceding the colonisation or internalisation and subsequent infection of plants by pathogens. Unfortunately, bacterial attachment is not well understood because the phenomenon is …
View article: The role of l-arabinose metabolism for Escherichia coli O157:H7 in edible plants
The role of l-arabinose metabolism for Escherichia coli O157:H7 in edible plants Open
Arabinose is a major plant aldopentose in the form of arabinans complexed in cell wall polysaccharides or glycoproteins (AGP), but comparatively rare as a monosaccharide. l -arabinose is an important bacterial metabolite, accessed by pecto…
View article: Intraspecies-Resolution Metabarcoding: automated primer design and a plant pathology case study
Intraspecies-Resolution Metabarcoding: automated primer design and a plant pathology case study Open
A poster presented as part of the 2021 Microbiology Society Online Annual Conference.We present results demonstrating species-specificity and sub-species resolution by novel, automatically-designed metabarcoding primers for environmental D…
View article: <i>Pectobacterium atrosepticum</i> KDPG aldolase, Eda, participates in the Entner–Doudoroff pathway and independently inhibits expression of virulence determinants
<i>Pectobacterium atrosepticum</i> KDPG aldolase, Eda, participates in the Entner–Doudoroff pathway and independently inhibits expression of virulence determinants Open
Pectobacterium carotovorum has an incomplete Entner–Doudoroff (ED) pathway, including enzyme 2‐keto‐3‐deoxy‐6‐phosphogluconate aldolase (Eda) but lacking phosphogluconate dehydratase (Edd), while P. atrosepticum (Pba) has a complete pathwa…
View article: Expansin-like Exl1 from Pectobacterium is a virulence factor required for host infection, and induces a defence plant response involving ROS, and jasmonate, ethylene and salicylic acid signalling pathways in Arabidopsis thaliana
Expansin-like Exl1 from Pectobacterium is a virulence factor required for host infection, and induces a defence plant response involving ROS, and jasmonate, ethylene and salicylic acid signalling pathways in Arabidopsis thaliana Open
Expansins are encoded by some phytopathogenic bacteria and evidence indicates that they act as virulence factors for host infection. Here we analysed the expression of exl1 by Pectobacterium brasiliense and Pectobacterium atrosepticum . In…
View article: Threat of establishment of non-indigenous potato blackleg and tuber soft rot pathogens in Great Britain under climate change
Threat of establishment of non-indigenous potato blackleg and tuber soft rot pathogens in Great Britain under climate change Open
Potato blackleg and soft rot caused by Pectobacterium and Dickeya species are among the most significant bacterial diseases affecting potato production globally. In this study we estimate the impact of future temperatures on establishment …
View article: Whole-genome bacterial classification: Whole genome taxonomic reclassification and a universal prokaryotic identifier scheme
Whole-genome bacterial classification: Whole genome taxonomic reclassification and a universal prokaryotic identifier scheme Open
Poster No. 577 from the Microbiology Society Annual Conference, 2017, at EICC Edinburgh