Infectivity by nematode–bacteria association on the potato weevil Phyrdenus muriceus

Eliceche, Daiana Pamela; Rusconi, José Matías; Rosales, Matías; Salas, Augusto; Achinelly, María Fernanda

doi:10.1016/j.ram.2018.11.002

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Their impressive array of primary and secondary metabolites may be so virulent that a single bacterial cell is enough to kill the targeted host of some arthropods, within a relatively short period of time [49]. Photorhabdus bacteria are, independently, quite eligible to control a broad range of arthropod pests in numerous categories, especially in the orders Lepidoptera (butterflies and moths), Diptera (flies, including insects that transmit human and plant diseases), and Coleoptera (weevils and beetles) [2,7,62]. For instance, P. luminescens and its metabolites were found to be lethal to the greater wax moth, Galleria mellonella, when applied in sand media; the bacterium rapidly penetrated the G. mellonella hemocoele as it got contact with the larval body.…”

Section: Range and Magnitude Of Pathogenicitymentioning

confidence: 99%

Photorhabdus spp.: An Overview of the Beneficial Aspects of Mutualistic Bacteria of Insecticidal Nematodes

Abd-Elgawad

2021

Plants

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The current approaches to sustainable agricultural development aspire to use safer means to control pests and pathogens. Photorhabdus bacteria that are insecticidal symbionts of entomopathogenic nematodes in the genus Heterorhabditis can provide such a service with a treasure trove of insecticidal compounds and an ability to cope with the insect immune system. This review highlights the need of Photorhabdus-derived insecticidal, fungicidal, pharmaceutical, parasiticidal, antimicrobial, and toxic materials to fit into current, or emerging, holistic strategies, mainly for managing plant pests and pathogens. The widespread use of these bacteria, however, has been slow, due to cost, natural presence within the uneven distribution of their nematode partners, and problems with trait stability during in vitro culture. Yet, progress has been made, showing an ability to overcome these obstacles via offering affordable mass production and mastered genome sequencing, while detecting more of their beneficial bacterial species/strains. Their high pathogenicity to a wide range of arthropods, efficiency against diseases, and versatility, suggest future promising industrial products. The many useful properties of these bacteria can facilitate their integration with other pest/disease management tactics for crop protection.

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Section: Range and Magnitude Of Pathogenicitymentioning

confidence: 99%

Photorhabdus spp.: An Overview of the Beneficial Aspects of Mutualistic Bacteria of Insecticidal Nematodes

Abd-Elgawad

2021

Plants

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Acaricidal effects of two native isolates of entomo-pathogenic bacteria Photorhabdus luminescens (Thomas & Poinar) against spider mite, Tetranychus truncatus Ehara (Acari: Tetranychidae)

Menon,

Bhaskar,

Subramanian

et al. 2023

International Journal of Acarology

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Factors affecting the fitness of an entomopathogenic nematode (Heterorhabditis bacteriophora SUP strain) for use in biocontrol in a horticultural area of Argentina

2021

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Summary The optimum conditions for storage, infectivity and multiplication of the nematode Heterorhabditis bacteriophora SUP strain, isolated from horticultural soils in Argentina, were determined for later use in biocontrol. This strain was able to kill Tenebrio molitor larvae (over 90%) at 16 and 25°C, after 7 and 4 days, respectively, with mortality being significantly higher at 25°C. No infectivity was reported at 4 and 11°C. Higher concentrations (over 150 infective juveniles (IJ) insect−1) produced higher percentages of mortality. However, increasing inoculum density reduced offspring production and increased emergence time. Storage density between 2500 and 7500 IJ ml−1 had no effect on survival of IJ. Survival of IJ maintained at 4 and 16°C was around 80% after 4 weeks storage and 30% after 32 weeks. However, at 25°C, a 60% IJ survival was observed at 4 weeks, decreasing to around 10% after 16 weeks and with no survival at 24 weeks. An overall significant decrease in virulence was observed after 90 and 120 days of storage but this was more pronounced at a storage temperature of 4°C than at 16 and 25°C. IJ stored at 4°C had reduced virulence after 90 and 120 days, but not after 60 days. This study provides useful information about some fundamental environmental conditions influencing important nematode traits of the species H. bacteriophora.

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Infectivity by nematode–bacteria association on the potato weevil Phyrdenus muriceus

Cited by 3 publications

References 3 publications

Photorhabdus spp.: An Overview of the Beneficial Aspects of Mutualistic Bacteria of Insecticidal Nematodes

Photorhabdus spp.: An Overview of the Beneficial Aspects of Mutualistic Bacteria of Insecticidal Nematodes

Acaricidal effects of two native isolates of entomo-pathogenic bacteria Photorhabdus luminescens (Thomas & Poinar) against spider mite, Tetranychus truncatus Ehara (Acari: Tetranychidae)

Factors affecting the fitness of an entomopathogenic nematode (Heterorhabditis bacteriophora SUP strain) for use in biocontrol in a horticultural area of Argentina

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