Fig. 1

Photographs and longitudinal sections of tomato. a: ‘JH4’ plants before treatment; b: ‘JL787’ plants before treatment; c-h: ‘JH4’ and ‘JL787’ plants 3 days after treatment; c: Separated ‘JH4’ shoot parts; d: Separated ‘JL787’ shoot parts; e: Separated ‘JH4’ root parts; f: Separated ‘JL787’ root parts; g: Grafted ‘JH4’ shoot parts and root parts; h: Grafted ‘JL787’ shoot parts and root parts. i-n: Longitudinal sections near cut positions of separated shoot parts, separated root parts, and grafted plants (upper are shoot parts and lower are root parts) of JH4 (i, k, m) and JL787 (j, l, n) at 3 days after treatment . Bars at the top right corners indicate 100 μm. Dash lines indicate cut positions. Pc, vb, co are short for parenchyma cell, vascular bundle, cortex