| The global atmospheric concentration of carbon dioxide (CO2) has been increased, and its considerable effort has been made to investigate the impact of the greenhouse effects on human, environments and ecosystems around the world. In present study we examined the interactions between the green peach aphid (Myzus persicae)c and Arabidopsis thaliana including wild type and three mutants under elevated CO2concentration (370ppm vs750ppm). Our experiment showed that:(1) elevated CO2reduced the activities of polyphenol oxidase (PPO) and peroxidase (POD) in the wild-type (Col-0) and ethylene-insensitive mutants (ein2-5), simultaneously decreased the growth and nutritional level of the salicylic acid-deficient mutants (nprl);(2) elevated CO2made the peach aphid easier puncture in the mesophyll of wild-type, but made sucking harder in the phloem of SA-deficient mutant;(3) by using the high-throughput transcriptome sequencing, compared with affected by Arabidopsis genotype, the gene expression pattern of M. persicae was more similar between CO2treatment. According to our results, we concluded that elevated CO2would alter the feeding behavior of M. persicae by altering the nutrition and resistance of Arabidopsis against aphid. |
PDF Full Text Request