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Tanya Arseneault

Tanya Arseneault
Government of Canada - Fisheries and Oceans

Ph.D.

About

22
Publications
3,318
Reads
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350
Citations
Citations since 2016
12 Research Items
324 Citations
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2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Additional affiliations
September 2009 - July 2015
Université de Moncton
Position
  • M.Sc. transferred to Ph.D
Education
May 2009 - January 2011
September 2005 - May 2009

Publications

Publications (22)
Article
Full-text available
Bacteria have evolved complex regulatory networks that enable integration of multiple intracellular and extracellular signals to coordinate responses to environmental changes. However, our knowledge of how regulatory systems function and evolve is still relatively limited. There is often extensive homology between components of different networks,...
Article
Full-text available
Pseudomonas fluorescens LBUM223 is a plant growth-promoting rhizobacterium (PGPR) with biocontrol activity against various plant pathogens. It produces the antimicrobial metabolite phenazine-1-carboxylic acid, which is involved in the biocontrol of Streptomyces scabies, the causal agent of common scab of potato. Here, we report the complete genome...
Article
Full-text available
Common scab of potato, caused by pathogenic Streptomyces spp., is an important disease not efficiently controlled by current methods. We previously demonstrated that Pseudomonas fluorescens sp. LBUM223 reduces common scab development under controlled conditions through phenazine-1-carboxylic (PCA) production, leading to reduced thaxtomin A producti...
Article
Full-text available
Streptomyces scabies is a causal agent of common scab of potato, which generates necrotic tuber lesions. We have previously demonstrated that inoculation of potato plants with phenazine-1-carboxilic acid (PCA)-producing Pseudomonas sp. LBUM223 could significantly reduce common scab symptoms. In the present study, we investigated if LBUM223, or an i...
Article
Full-text available
Common scab of potato is mainly caused by Streptomyces scabies. Currently, no method can efficiently control this economically important disease. We have previously determined that Pseudomonas sp. LBUM223 exhibits antagonistic properties towards S. scabies under in vitro conditions. Inhibition was mainly attributed to phenazine-1-carboxylic acid (P...
Article
Common scab of potato is an important disease caused by Streptomyces scabies. Biological control of this disease was previously demonstrated under controlled and field conditions using Pseudomonas synxantha LBUM223, a phenazine-1-carboxylic acid (PCA)-producer. To better understand the impact of PCA on the pathogen, RNA-seq analyses of S. scabies c...
Article
Full-text available
Background: Phytophthora infestans is responsible for late blight, one of the most important potato diseases. Phenazine-1-carboxylic acid (PCA)-producing Pseudomonas fluorescens strain LBUM223 isolated in our laboratory shows biocontrol potential against various plant pathogens. To characterize the effect of LBUM223 on the transcriptome of P. infe...
Article
Full-text available
Understanding the molecular mechanisms underpinning the ecological success of plant pathogens is critical to develop strategies for controlling diseases and protecting crops. Recent observations have shown that plant pathogenic bacteria, particularly Pseudomonas, exist in a range of natural environments away from their natural plant host e.g., wate...
Article
There is abundant prior published information on antibiosis, one of the most studied biocontrol mechanisms for plant pathogens. Depending on their concentration, antibiotics can have various effects on target organisms, a phenomenon known as hormesis. Under complex soil conditions where subinhibitory concentrations of antibiotics are thought to pre...
Article
Phytophthora infestans causes late blight of potato, one of the most devastating diseases affecting potato production. Alternative approaches for controlling late blight are being increasingly sought due to increasing environmental concerns over the use of chemical pesticides and the increasing resistance of P. infestans to fungicides. Our research...
Article
Pseudomonads are often used as biocontrol agents as they display a broad range of mechanisms to control diseases. Common scab of potato, caused by Streptomyces scabies, was previously reported to be controlled by Pseudomonas fluorescens LBUM223 through phenazine-1-carboxylic acid (PCA) production. In this study, we aimed at characterizing the popul...
Chapter
Soils that are suppressive to diseases have often been shown to contain high levels of fluorescent Pseudomonas spp. that produce a variety of secondary metabolites, including antibiotics such as hydrogen cyanide, diacetylphloroglucinol (DAPG) and phenazines, among others. Phenazine-producing Pseudomonas spp. show promise for use as successful bioco...
Research
Pseudomonas fluorescens LBUM223 is a plant growth-promoting rhizobacterium (PGPR) with biocontrol activity against various plant pathogens. It produces the antimicrobial metabolite phenazine-1-carboxylic acid, which is involved in the biocontrol of Streptomyces scabies, the causal agent of common scab of potato. Here, we report the complete genome...
Article
In this study we investigated the fidelity and representativeness of two novel multiple displacement amplification (MDA) protocols leading to whole transcriptome amplification (WTA). WTA is used to amplify a limiting amount of experimental RNA, allowing its use in downstream applications. Using Phi29 and Bst DNA polymerase-based MDA, henceforth ref...
Article
In this study we investigated the fidelity and representativeness of two novel multiple displacement amplification (MDA) protocols leading to whole transcriptome amplification (WTA). WTA is used to amplify a limiting amount of experimental RNA, allowing its use in downstream applications. Using Phi29 and Bst DNA polymerase-based MDA, henceforth ref...
Article
Streptomyces scabies causes common scab, an economical disease affecting potato crops world-wide, for which no effective control measure exists. This pathogen produces the plant toxin thaxtomin A, which is involved in symptom development on potato tubers. A biological control approach that can limit S. scabies growth and repress thaxtomin productio...

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