In spite of available information demonstrating the assimilation of cyanide (CN) by β-cyanoalanine synthase (β-CAS) in plants, involvement of sulfurtransferase (ST) in CN assimilation in rice plants is still undefined. In this study, a microcosmic hydroponic system was used to investigate the involvement of β-cyanoalanine synthase (β-CAS) and sulfurtransferase (ST) in the CN assimilation in rice seedlings under the exposure of potassium cyanide (KCN) in presence or absence of 1-amino-cyclopropane-1-carboxylic acid (ACC). Our results indicated that the measurable thiocyanate (SCN) was detected in both rice roots and shoots under KCN exposure, and the abundances of ST-related transcripts were up-regulated sig... More