STRUCTURE AND EXPRESSION OF 2 CDNA ENCODING S-ADENOSYL-L-METHIONINE SYNTHETASE OF RICE (ORYZA-SATIVA L.)

Two cDNAs encoding rice (Oryza sativa L.) S-adenosyl-L-methionine synt hetase (SAMS) have been cloned, sequenced and identified. The deduced protein sequences share a high homology (90-94%) with those of other p lant SAMS and are 60-62% identical to yeast, rat and human SAMS. The r ice SAMS genes are differentially regulated in a tissue-specific manne r and by a salt stress, while they are coordinately expressed during g rowth of the rice cell culture. (C) 1997 Elsevier Science B.V.