If you mean, do plants get cancer,

Yes. I meant to ask if plants can get cancer on their own. Just like
humans and animals. Virus infection? In theory, any cell [plant,
animal, fungi, algae etc.] constantly irritated by viral enzymes could
undergoes some mutation. Right?

BTW, I have notice some abnormally bright green spots in my tulip
petals. They are supposed to be yellow, not green. Could this be due
to viral infection of chloroplasts in cells of the "blood green"
region's of the tulip's petals?