Cloning sulfur assimilation genes of Brassica juncea L.: cadmium differentially affects the expression of a putative low-affinity sulfate transporter and isoforms of ATP sulfurylase and APS reductase. - Heiss, ,S.,.; Schäfer, ,H..J.,.; Haag-Kerwer, ,A.,.; and Rausch, ,T.. (Plant Molecular Biology, 1999)