Figure 1: Phenotypic responses of six-month-old sandalwood seedlings after 4 °C treatment.

(a) Control plant. (b–d) Cold-stressed plants for 12, 24, and 48 h, respectively. (e,f) The terminal shoots of seedlings at 24 h (e) and 48 h (f) after cold treatment. Arrows show leaves harmed by cold. (g) Seedlings recovered within 48 h after cold treatment. Potted host plant in (a,b,c,d) is Kuhnia rosmarnifolia. Scale bar = 2 cm.