Damage symptom on cucumber plant
The HI lineage with no feeding experience on pre-infected cucumber
developed into tiny yellow dwarfs. The HI lineage with feeding
experience (HI adapted) on pre-infected cucumber reached the same
population growth rate as the CU lineage on healthy cucumber plant, and
the nymphs developed into big green morphs which had no discernible
difference from the CU lineage on cucumber plant. The HI lineage with
feeding experience (HI adapted) on pre-infected cucumber inflicted the
same damage symptom as the CU lineage did to cucumber plant, and the HI
lineage with no feeding experience on pre-infected cucumber inflicted no
damage symptom to cucumber plant (Figure 1D). The results indicated the
HI lineage fully adapted to cucumber through the short feeding
experience on pre-infected cucumber.