Plant materials and growth conditions
The seeds of the pepper inbred line HN42 and N. benthamiana were sown in a soil mix [peat moss: perlite, 2:1 (v/v)] in plastic pots and were placed in a growth room under condition of 28℃, 60–70 mmol photons m-2 s-1, a relative humidity of 70%, and a 16-h light/8-h dark.