Elevated CO2 and O3 alter the feeding efficiency of Acyrthosiphon pisum and Aphis craccivora via changes in foliar secondary metabolites
Year: 2018
Type: article
Abstract: Elevated CO2and O3can affect aphid performance via altering plant nutrients, however, little is known about the role of plant secondary metabolites in this process, especially for aphids feeding behaviors. We determined the effects of elevated CO2and O3on the growth and phenolics of alfalfa (Medicago sativa) and feeding behaviors of the pea aphids (Acyrthosiphon pisum) and cowpea aphids (Aphis craccivora). Elevated CO2improved plant growth, but could not completely offset the negative effects of elevated O3. Elevated O3increased foliar genistin content at the vegetative stage, increased ferulic acid at the reproductive stage, and elevated CO2increased those at both stages. Simultaneously elevated CO2and O3increased foliar ferulic acid content at the reproductive stage and increased genistin content at both stages. For pea aphids, feeding efficiency was reduced under elevated CO2at the reproductive stage and decreased under elevated O3at the vegetative stage. For cowpea aphids, feeding efficiency was increased under elevated CO2at the vegetative stage and decreased under elevated O3at both stages. Simultaneously elevated CO2and O3decreased both aphids feeding efficiency. We concluded that CO2and O3independently or interactively had different effects on two aphids feeding behaviors through altering foliar ferulic acid and genistin contents.
Source: Scientific Reports
Authors: Hongyu Yan, Honggang Guo, Erliang Yuan, Yucheng Sun, Feng Ge
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $2,690
Funder: Chinese Academy of Sciences
Award: G7496238473
OpenAlex ID: W2811026561