Results 51 to 60 of about 865,834 (220)

The entomopathogenic nematode Heterorhabditis megidis: host searching behaviour, infectivity and reproduction [PDF]

open access: yes, 2001
Entomopathogenic nematodes in the families Heterorhabditidae and Steinernematidae have considerable potential as biological control agents of soil-inhabiting insect pests.
Boff, M.I.C.
core  

The evolution of entomopathogeny in nematodes

open access: yesEcology and Evolution
Understanding how parasites evolved is crucial to understand the host and parasite interaction. The evolution of entomopathogenesis in rhabditid nematodes has traditionally been thought to have occurred twice within the phylum Nematoda: in ...
V. J. Trejo‐Meléndez   +2 more
doaj   +1 more source

Mechanism of threonine ADP-ribosylation of F-actin by a Tc toxin

open access: yesNature Communications, 2022
Entomopathogenic bacteria used for pest control secrete potent Tc toxins. Here, the authors combine biochemistry, solution and solid-state NMR spectroscopy and cryo-EM to show in atomic detail how the toxin disrupts the host cell cytoskeleton and kills ...
Alexander Belyy   +8 more
doaj   +1 more source

Intestinal regeneration as an insect resistance mechanism to entomopathogenic bacteria. [PDF]

open access: yesCurr Opin Insect Sci, 2016
The intestinal epithelium of insects is exposed to xenobiotics and entomopathogens during the feeding developmental stages. In these conditions, an effective enterocyte turnover mechanism is highly desirable to maintain integrity of the gut epithelial wall.
Castagnola A, Jurat-Fuentes JL.
europepmc   +4 more sources

Evolutionary trade‐offs between beauvericin production and growth define divergent virulence strategies in Beauveria

open access: yesPest Management Science, EarlyView.
Two virulence strategies in Beauveria: a growth strategy characterized by rapid within‐host proliferation, and a toxin strategy involving antimicrobial activity and toxicity to insects Abstract BACKGROUND Pathogen virulence is often attributed to toxin production, yet toxins are metabolically costly and may not universally enhance fitness.
Shasha Hu   +3 more
wiley   +1 more source

Insecticidal Effect of Entomopathogenic Nematodes and the Cell-Free Supernatant from Their Symbiotic Bacteria against Philaenus spumarius (Hemiptera: Aphrophoridae) Nymphs [PDF]

open access: yes, 2021
This article belongs to the Special Issue Entomopathogenic Nematodes: Lethal Parasites of Insects.[Simple Summary] The disease caused by Xylella fastidiosa affects economically relevant crops such as olives, almonds, and grapevine.
Vicente-Díez, Ignacio [0000-0002-3540-828X]   +12 more
core   +1 more source

New reports on dixenic associations between the symbionts of entomopathogenic nematodes, Photorhabdus and Xenorhabdus, and non-symbiotic bacteria [PDF]

open access: yes, 2017
By conducting three different methods, we report on the isolation of five novel strains of non-symbiotic bacteria from crushed infective juveniles (IJs) of four species of entomopathogenic nematodes (EPN) including Heterorhabditis bacteriophora ...
Girling, Robbie   +2 more
core   +1 more source

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

Assessing the Pathogenicity of Two Bacteria Isolated from the Entomopathogenic Nematode Heterorhabditis indica against Galleria mellonella and Some Pest Insects

open access: yesInsects, 2019
The entomopathogenic nematodes Heterorhabditis are parasites of insects and are associated with mutualist symbiosis enterobacteria of the genus Photorhabdus; these bacteria are lethal to their host insects.
Rosalba Salgado-Morales   +5 more
doaj   +1 more source

Comparison of the Antagonistic Potential of the Entomopathogenic Bacterium Serratia nematodiphila GCSR38 with other Effective Microorganisms for the Control of Rice Bacterial Leaf Blight

open access: yesJournal of Pure and Applied Microbiology, 2022
The efficacy of antagonistic microorganisms and secondary metabolites of entomopathogenic bacteria was evaluated in vitro and in vivo against Xanthomonas oryzae pv. oryzae (Xoo), a causal agent of rice bacterial leaf blight.
Waraporn Sutthisa
doaj   +1 more source

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