Learn More
Controlling expression of IPT, a gene encoding isopentenyltransferase (the enzyme that catalyzes the rate-limiting step in cytokinin biosynthesis), with a senescence-specific promoter results in the suppression of leaf senescence. Transgenic tobacco plants expressing this chimeric gene do not exhibit the developmental abnormalities usually associated with(More)
Two promoters of senescence-associated ARABIDOPSIS genes, SAG12 and SAG13, were used in tomato plants to express IPT that catalyzes the rate-limiting step in cytokinin biosynthesis. Expression of these heterologous promoters in tomato plants was analyzed using the reporter gene beta-glucuronidase. Both promoters are expressed in tomato leaves in a manner(More)
Brassinosteroid-insensitive 1 (BRI1), the receptor of brassinosteroids (BRs), is a dual-function serine/threonine/tyrosine protein kinase which initiates BR signaling and regulates plant growth via its protein kinase activity. Previous research has identified phosphorylation sites of Arabidopsis BRI1 in vivo and in vitro, but the significance of which to BR(More)
  • 1