Mode of action of Pseudomonas fluorescens strain CL145A, a lethal control agent of dreissenid mussels (Bivalvia: Dreissenidae)

Molloy, Daniel P.; Mayer, Denise A.; Giambérini, Laure; Gaylo, Michael J.

doi:10.1016/j.jip.2012.12.013

Cited by 12 publications

(10 citation statements)

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“…Zequanox contains killed cells of P. fluorescens CL145A and is registered for control of quagga and zebra mussels in limited open-water environments and in cooling and service water systems for industrial facilities. It was shown that dead P. fluorescens CL145A cells achieved the same percentage mussel mortality as live cells and that the mode of action is intoxication (Molloy et al, 2013).…”

Section: Commercial Pseudomonas-based Bioprotectantsmentioning

confidence: 99%

The use of Pseudomonas spp. as bacterial biocontrol agents to control plant diseases

Höfte¹

2021

Burleigh Dodds Series in Agricultural Science

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Most Pseudomonas biocontrol strains are associated with the rhizosphere of plants, where they control soil pathogens by antibiosis or competition, and leaf pathogens via induced systemic resistance. Genome mining and the division of the vastly heterogeneous genus Pseudomonas in phylogenomic (sub)groups has clarified the relation between biocontrol characteristics and phylogeny. Based on their activity, Pseudomonas biocontrol strains come in three types. A first type, represented by P. chlororaphis, P. protegens, P. corrugata and P. aeruginosa (sub)group strains, produces an arsenal of secondary metabolites with broad antimicrobial activity. The second type is found in the P. putida, P. fluorescens, P. koreensis, P. mandelii, and P. gessardii (sub)group. The spectrum of biocontrol properties of these strains is less diverse and involves siderophores and cyclic lipopeptides. The third type colonizes above-ground plant parts. Strains from this type mainly belong to the P. syringae group and are used to control postharvest pathogens. This chapter starts with recent advances in Pseudomonas taxonomy and a summary of its most important biocontrol traits. It then provides an overview of the most important Pseudomonas groups and subgroups harboring biocontrol strains. Examples of well-characterized and representative biocontrol strains show the links between phylogeny, ecology and biocontrol traits. The chapter concludes by reviewing commercially-available biocontrol strains.

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Section: Commercial Pseudomonas-based Bioprotectantsmentioning

confidence: 99%

The use of Pseudomonas spp. as bacterial biocontrol agents to control plant diseases

Höfte¹

2021

Burleigh Dodds Series in Agricultural Science

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“…Toxicity from P. fluorescens is due to a protein component of the cell wall (Molloy et al 2013b) that causes an inflammatory reaction and tissue damage in the stomach and digestive glands of dreissenid mussels (Molloy et al 2013c). Death likely results from lysis and necrosis of the digestive gland and sloughing of epithelial tissue from the stomach (Molloy et al 2013c) and may occur days to weeks after ingestion. Because the commercial formulation uses killed cells, environmental effects should be minimized (Molloy et al 2013c).…”

Section: Molluscicidesmentioning

confidence: 99%

“…Death likely results from lysis and necrosis of the digestive gland and sloughing of epithelial tissue from the stomach (Molloy et al 2013c) and may occur days to weeks after ingestion. Because the commercial formulation uses killed cells, environmental effects should be minimized (Molloy et al 2013c).…”

Section: Molluscicidesmentioning

confidence: 99%

“…2013b) that causes an inflammatory reaction and tissue damage in the stomach and digestive glands of dreissenid mussels (Molloy et al. 2013c). Death likely results from lysis and necrosis of the digestive gland and sloughing of epithelial tissue from the stomach (Molloy et al.…”

Section: An Overview Of Selected Registered Chemical Control Toolsmentioning

confidence: 99%

“…Because the commercial formulation uses killed cells, environmental effects should be minimized (Molloy et al. 2013c).…”

Section: An Overview Of Selected Registered Chemical Control Toolsmentioning

confidence: 99%

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Chemical Controls for an Integrated Pest Management Program

Fredricks

Hubert

Amberg

et al. 2019

N American J Fish Manag

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Chemical controls ranging from natural products to synthesized chemicals are widely used in aquatic pest management activities. Chemicals can be used to lure organisms to traps or can cause direct mortality by altering the physiological function of an organism. Much of what is known about controlling pests with chemicals is from research done on terrestrial pesticides. This paper focuses on how chemicals might be used as aquatic pesticides to control or eradicate aquatic invasive species. Current control tools are described, as are new technologies designed to selectively target the pest to reduce risks to nontarget organisms and the environment. Overview of Chemical Control in Aquatic Pest ManagementChemical controls are an integral part of an aquatic integrated pest management (IPM) plan. The high degree of efficacy, good availability, and generally low cost make them an attractive option for aquatic nuisance species control. Chemicals can be applied to achieve control in different ways. Pheromones, for example, may lure aquatic pests to traps to enhance removal efficiency. Selective biocides, such as the molluscicide Zequanox and the lampricide 3-trifluoromethyl-4-nitrophenol (TFM), may limit population growth through lethal endpoints. Enriching water with carbon dioxide (CO 2 ) may function as a behavioral deterrent to prevent invasive species from moving upstream. Overall, chemicals have the potential to serve unique roles within fisheries management or pest management programs. An understanding of the individual mechanisms and modes of action is critical to the success and effectiveness of pesticide applications.Pesticides must have a high degree of toxicity toward their target yet must be fairly nontoxic toward humans and other nontarget species (Duke et al. 2010). In the developed world, pests are largely controlled by synthetic

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Review and Development of Best Practices for Toxicity Tests with Dreissenid Mussels

Waller

Pucherelli

Barbour

et al. 2023

Enviro Toxic and Chemistry

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Since their introduction to North America in the 1980s, research to develop effective control tools for invasive mussels (Dreissena polymorpha and D. rostriformis bugensis) has been ongoing across various research institutions using a range of testing methods. Inconsistencies in experimental methods and reporting present challenges for comparing data, repeating experiments, and applying results. The Invasive Mussel Collaborative established the Toxicity Testing Work Group (TTWG) in 2019 to identify “best practices” and guide development of a standard framework for dreissenid mussel toxicity testing protocols. We reviewed the literature related to laboratory‐based dreissenid mussel toxicity tests and determined the degree to which standard guidelines have been used and their applicability to dreissenid mussel testing. We extracted detailed methodology from 99 studies from the peer‐reviewed and gray literature and conducted a separate analysis for studies using presettlement and postsettlement mussels. We identified specific components of methods and approaches that could be refined or standardized for dreissenid mussels. These components included species identification, collection methods, size/age class distinction, maintenance practices, testing criteria, sample size, response measures, reporting parameters, exposure methods, and mortality criteria. We consulted experts in the field of aquatic toxicology and dreissenid mussel biology on our proposed. The final recommendations contained in the present review are based on published standard guidelines, methods reported in the published and gray literature, and the expertise of TTWG members and an external panel. In addition, our review identifies research needs for dreissenid mussel testing including improved methods for early–life stage testing, comparative data on life stages and between dreissenid mussel species, inclusion of a reference toxicant, and additional testing of nontarget species (i.e., other aquatic organisms). Environ Toxicol Chem 2023;42:1649–1666. © 2023 His Majesty the King in Right of Canada. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. Reproduced with the permission of the Minister of Environment and Climate Change Canada. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.

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Mode of action of Pseudomonas fluorescens strain CL145A, a lethal control agent of dreissenid mussels (Bivalvia: Dreissenidae)

Cited by 12 publications

References 10 publications

The use of Pseudomonas spp. as bacterial biocontrol agents to control plant diseases

The use of Pseudomonas spp. as bacterial biocontrol agents to control plant diseases

Chemical Controls for an Integrated Pest Management Program

Review and Development of Best Practices for Toxicity Tests with Dreissenid Mussels

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