However on the contrary, the infection of whiteflies with TYLCV, ToCV and cucurbit yellow stunting disorder virus (CYSDV) was shown to down-regulate the alpha-glucosidase expression (Kaur et al., 2017) which implies that regulation of carbohydrate metabolism among whiteflies is differential in response to different plant viruses and it might play crucial function that affects the efficacy of whiteflies to acquire and transmit viruses. Here, GAA is linked to infection.