Functional Symbionts

37 records

Records of insect symbionts with verified function from literatures.

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Host Insect Classification Localization Function Function Tags Year Edit
Hamiltonella defensa

Pseudomonadota
Bacteria

Hamiltonella defensa infection in Rhopalosiphum maidis leads to a shortened developmental duration for the first instar and total nymph stages, reduced survival rate, offspring count, and longevity.
Growth Regulation Developmental Modulation

2023
Bacteria
Extracellular

2023
Bacteria
Intracellular

Candidatus Hamiltonella defensa modifies the anti-predator behavior of Acyrthosiphon pisum by causing the aphids to exhibit proportionately fewer evasive defences (dropping and walking away) and more frequent aggressive kicking in response to ladybirds.
Natural Enemy Resistance

2022
Bacteria
Intracellular

Candidatus Hamiltonella defensa causes the infected Macrosiphum euphorbiae group to show greater differentiation in anti-predator behaviors in response to different predators (ladybirds and lacewings) than the uninfected lines.
Natural Enemy Resistance

2022
Hamiltonella defensa

Pseudomonadota
Bacteria
Intracellular

Candidatus Hamiltonella defensa has a defensive function and can protect Sitobion avenae aphids from parasitoids (natural enemy resistance).
Natural Enemy Resistance

2021
Hamiltonella defensa

Pseudomonadota

Acyrthosiphon pisum

France, Japan, Engl…

Bacteria
Intracellular

Hamiltonella defensa has a weak effect on the ability of Acyrthosiphon pisum to defend themselves against parasitic wasps Aphidius ervi during the attack and a strong effect on aphid resistance against parasitoid development.
Natural Enemy Resistance

2021
Bacteria
Extracellular

Candidatus Hamiltonella defensa reduced Sitobion miscanthi susceptibility to insecticides at low concentrations, potentially by increasing host detoxification enzyme activity.
Pesticide Metabolization

2021
Hamiltonella defensa

Pseudomonadota
Bacteria
Intracellular

Hamiltonella defensa infection led to a decrease in aphid feeding on low-quality host plants in Rhopalosiphum padi.
Feeding Habit Alteration

2020
Arsenophonus sp.

Pseudomonadota
Bacteria
Intracellular

Arsenophonus sp. (secondary symbiont reduction) led to reduction of the total life span and intrinsic rate of natural increase as well as appearance of deformed dead offspring in Aphis gossypii. Arsenophonus and H. defensa contribute to the fitness of A. gossypii by enhancing its performance.
Growth Regulation Fertility

2020
Arsenophonus sp.

Pseudomonadota
Bacteria

Arsenophonus sp. (symbiont reduction) led to reduction of the total life span and intrinsic rate of natural increase as well as appearance of deformed dead offspring in Aphis gossypii.
Growth Regulation Developmental Modulation

2020
Hamiltonella defensa

Pseudomonadota
Bacteria
Intracellular

Hamiltonella defensa (secondary symbiont reduction) led to reduction of the total life span and intrinsic rate of natural increase as well as appearance of deformed dead offspring in Aphis gossypii. H. defensa and Arsenophonus contribute to the fitness of A. gossypii by enhancing its performance.
Growth Regulation Fertility

2020
Bacteria

Candidatus Hamiltonella defensa (symbiont reduction) led to reduction of the total life span and intrinsic rate of natural increase as well as appearance of deformed dead offspring in Aphis gossypii.
Growth Regulation Developmental Modulation

2020
Hamiltonella defensa

Pseudomonadota
Bacteria
Intracellular

Candidatus Hamiltonella defensa significantly increases the survival rate of the host aphid when attacked by parasitoid wasps, but negatively affects host growth and development.
Natural Enemy Resistance

2020
Hamiltonella defensa

Pseudomonadota
Bacteria

Candidatus Hamiltonella defensa provides a defense against hymenopteran parasitoids to its aphid host, Acyrthosiphon malvae.
Natural Enemy Resistance

2020
Bacteria

Candidatus Hamiltonella defensa increases the reproductive capacity of wheat aphids (number of offspring and reduced age of first breeding) and suppresses the host's salicylic acid (SA)- and jasmonic acid (JA)-related defense pathways.
Fertility Plant Defense Modulation

2019
Bacteria

Candidatus Hamiltonella defensa defensa may indirectly improve the fitness of Sitobion miscanthi by stimulating the proliferation of Buchnera aphidicola.
Stress Resistance

2018
Hamiltonella defensa

Pseudomonadota
Bacteria

Hamiltonella defensa increased progeny and female progeny size of Aphelinus glycinis.
Fertility

2018
Hamiltonella defensa

Pseudomonadota
Bacteria

Hamiltonella defensa decreased adult survival on Acyrthosiphon pisum.
Growth Regulation

2018
Bacteria

2017
Bacteria
Intracellular

Candidatus Hamiltonella defensa substantially affected the hyperparasitoid (either Aphidius ervi or Aphelinus abdominalis) hatch rate.
Natural Enemy Resistance

2017
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