Paclitaxel (Taxol®) is a potent anticancer agent, but the widespread pharmaceutical use of paclitaxel hampered by its limited availability due to low accumulation levels in native yew (Taxus spp.) plants. Currently, hairy root culture an emerging biotechnological tool that presents several advantages such as reduced costs and higher specialized metabolite production, therefore, application prod...

BACKGROUND Plant root growth and development is highly plastic and can adapt to many environmental conditions. Sugar signaling has been shown to affect root growth and development by interacting with phytohormones such as gibberellins, cytokinin and abscisic acid. Auxin signaling and transport has been earlier shown to be controlling plant root length, number of lateral roots, root hair and roo...

Regulation of the root high-affinity iron uptake system by whole-plant signals was investigated at the molecular level in Arabidopsis, through monitoring FRO2 and IRT1 gene expression. These two genes encode the root ferric-chelate reductase and the high-affinity iron transporter, respectively, involved in the iron deficiency-induced uptake system. Recovery from iron-deficient conditions and mo...