Fig. 3From: Salicylic acid reverses pollen abortion of rice caused by heat stressDetection of fragmented DNA via TUNEL assay in the tapetum of the anther under control and heat stress. TUNEL-positive signal was marked by a white arrow. a and b, control with 0 and 10Â mM SA respectively; c and d, heat stress pretreatment with 0 and 10Â mM SA respectivelyBack to article page