CHARACTERIZATION OF 2 CDNAS (ERD11 AND ERD13) FOR DEHYDRATION-INDUCIBLE GENES THAT ENCODE PUTATIVE GLUTATHIONE S-TRANSFERASES IN ARABIDOPSIS-THALIANA L

Two cDNA clones, designated ERD11 and ERD13, isolated from a cDNA libr ary from Arabidopsis thaliana L. plants dehydrated for 1 h were sequen ced and characterized. These clones encoded polypeptides that were hom ologous to glutathione S-transferases of tobacco and maize. Genomic So uthern hybridization suggested that there are a few additional genes s howing high similarity to the ERD11 gene in the Arabidopsis genome. Th e expression of the genes for ERD11 and ERD13 was induced by dehydrati on, but was not affected by the application of four plant growth regul ators, 2,4-dichlorophenoxyacetic acid 6-benzylaminopurine, abscisic ac id, or gibberellic acid.