sentences:  They also observed damage to muscle cells in the gut and salivary glands of insects infected with "S. citri" which is evidence that "S. citri" causes damage to the beet leafhoppers when it uses them as vectors.However the authors also noted how this damage was not as significant as seen in other insects which may suggest that the beet leafhopper may be co-evolving to reduce harm by "S. citri" pathogens.In a follow-up study to understand the exact mechanism of uptake of "S. citri" cells by beet leafhopper gut cells, researchers developed a line of beet leafhopper cells called the CT1 cell line.