Combining plant resistance and a natural enemy to control Amphorophora idaei

Mitchell, Carolyn; Johnson, Scott N.; Gordon, Stuart C.; Birch, A. Nicholas E.; Hubbard, Stephen F.

doi:10.1007/s10526-009-9257-2

Cited by 28 publications

(22 citation statements)

References 25 publications

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“…However, other systems are not so clear and although aphid populations are reduced on resistant plants this can be associated with a negative impact on parasitoids, such as a lowering the attack rate (e.g. Mitchell et al 2010). Karatolos and Hatcher (2009) investigated the effects of acetylsalicylic acid and oxalic acid, two compounds capable of inducing chemical defence mechanisms in plants, on the interaction between the aphid Myzus persicae and its parasitoid Aphidius colemani feeding on Brassica oleracea.…”

Section: Discussionmentioning

confidence: 99%

The effects of a plant defence priming compound, β-aminobutyric acid, on multitrophic interactions with an insect herbivore and a hymenopterous parasitoid

et al. 2011

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Biocontrol of aphids by natural enemies is utilized in many organic and integrated pest management schemes. b-aminobutyric acid (BABA), a non-protein amino acid, is a plant defence primer that suppresses growth of some insect herbivores when applied as a root drench. This investigation examined how applying BABA to host plants via the roots may impact on a parasitoid wasp of aphids. Female Aphidius ervi (Haliday) did not discriminate against pea aphids (Acyrthosiphon pisum (Harris)) reared on BABA-treated beans (Vicia faba L.) or show any modified responses to volatiles released from BABA-treated plants. BABA reduced the size of emerging wasps, primarily by inhibiting the growth of the host aphid. Metabolomic analysis revealed BABA in both aphids and emergent wasps indicating some potential for direct physiological inhibition to have occurred. Survival of the parasitoids was only reduced at doses of BABA likely to produce phytotoxic effects in many plant species, thus there may be potential to incorporate plant defence primers like BABA into integrated pest management practices. However, the precise mechanisms of BABA-inhibition of insects still require elucidation.

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Section: Discussionmentioning

confidence: 99%

The effects of a plant defence priming compound, β-aminobutyric acid, on multitrophic interactions with an insect herbivore and a hymenopterous parasitoid

et al. 2011

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“…The A 10 resistance gene is considered to be more durable than A 1 resistance gene (McMenemy et al. 2009; Mitchell et al. 2010), so this may explain why resistance to A. idaei did not break down in A 10 plants under eCO 2 .…”

Section: Discussionmentioning

confidence: 99%

Evidence that elevated CO2 reduces resistance to the European large raspberry aphid in some raspberry cultivars

Martin

Johnson²

2011

Journal of Applied Entomology

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Global climate change, such as elevated atmospheric carbon dioxide (eCO2), may accelerate the breakdown of crop resistance to insect pests by compromising expression of resistance genes. This study investigated how eCO2 (700 μmol/mol) affected the susceptibility of red raspberry (Rubus idaeus) to the European large raspberry aphid (Amphorophora idaei) Börner (Homoptera: Aphididae), using a susceptible cultivar (Malling Jewel) and cultivars containing either the A1 (Glen Lyon) or A10 (Glen Rosa) resistance genes. Compared to plants grown at ambient CO2 (aCO2) (375 μmol/mol), growth rates were significantly increased (ranging from 42–300%) in all cultivars at eCO2. There was some evidence that plants containing the A1 gene were more susceptible to aphids at eCO2, with aphid populations doubling in size compared to the same plants grown at aCO2. Moreover, aphids grew 38% larger (1.36 mg compared with 0.98 mg) on plants with the A1 resistance gene at eCO2 compared with those at aCO2. Aphid performance on plants containing the A1 gene grown at eCO2 was therefore similar to that of aphids reared on entirely susceptible plants under either CO2 treatment. In contrast, aphids did not respond to eCO2 when reared on plants with the A10 resistance gene, suggesting that plants with this resistance gene remained resistant to aphids at eCO2.

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“…Following the aphid performance protocol by Mitchell et al . (), after an initial 12 h, all nymphs were removed from the plants, and after a further 12 h, the adult and all but one nymph were removed. The remaining individual nymphs were subsequently examined at 24‐h intervals until adult mortality occurred, and new nymphs were removed from each plant daily.…”

Section: Methodsmentioning

confidence: 99%

Climate and atmospheric change impacts on sap‐feeding herbivores: a mechanistic explanation based on functional groups of primary metabolites

et al. 2016

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Summary Global climate and atmospheric change are widely predicted to affect many ecosystems. Herbivorous insects account for 25% of the planet's species so their responses to environmental change are pivotal to how future ecosystems will function. Atmospheric change affects feeding guilds differently, however, with sap‐feeding herbivores consistently identified as net beneficiaries of predicted increases in atmospheric carbon dioxide concentrations (eCO2). The mechanistic basis for these effects remains largely unknown, and our understanding about how multiple environmental changes, acting in tandem, shape plant–insect interactions is incomplete. This study investigated how increases in temperature (eT) and eCO2 affected the performance of the pea aphid (Acyrthosiphon pisum) via changes in amino acid concentrations in the model legume, lucerne (Medicago sativa). Aphid performance increased under eCO2 at ambient temperatures, whereby aphid fecundity, longevity, colonization success and rm increased by 42%, 30%, 25% and 21%, respectively. eT negated the positive effects of eCO2 on both fecundity and rm, however, and performance was similar to when aphids were reared at ambient CO2. We identified discrete functional groups of amino acids that underpinned the effects of climate and atmospheric change, in addition to plant genotype, on aphid performance. Effects of eT and eCO2 held true across five M. sativa genotypes, demonstrating the generality of their effects. Combining this knowledge with amino acid profiles of existing cultivars raises the possibility of predicting future susceptibility to aphids and preventing outbreaks of a global pest. Moreover, environmentally induced changes in the nutritional ecology of aphids have the capacity to change life‐history strategies of aphids and their direct and indirect interactions with many other organisms, including mutualists and antagonists. A http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12715/suppinfo is available for this article.

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Combining plant resistance and a natural enemy to control Amphorophora idaei

Cited by 28 publications

References 25 publications

The effects of a plant defence priming compound, β-aminobutyric acid, on multitrophic interactions with an insect herbivore and a hymenopterous parasitoid

The effects of a plant defence priming compound, β-aminobutyric acid, on multitrophic interactions with an insect herbivore and a hymenopterous parasitoid

Evidence that elevated CO2 reduces resistance to the European large raspberry aphid in some raspberry cultivars

Climate and atmospheric change impacts on sap‐feeding herbivores: a mechanistic explanation based on functional groups of primary metabolites

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