Cloning, biochemical identification, and expression analysis of a gene encoding S-adenosylmethionine decarboxylase in navel orange (Citrus sinensis Osbeck)

Polyamines have been shown to be involved in a variety of plant physiological processes such as growth, development, and stress responses. As S-adenosylmethionine decarboxylase (SAMDC) is the rate-limiting enzyme for polyamine biosynthesis, efforts were made to isolate the gene encoding SAMDC from \'Newhall\' navel orange (Citrus sinensis Osbeck). RT-PCR, in combination with a bioinformatics appr...