Hairy roots of Senna alata transformed with Agrobacterium rhizogenes, strain ATCC 15834 were induced and grown in half-strength Murashige and Skoog (MS) medium. Effects of sucrose contents and hormones on the growth and sennosides A, B production were investigated. Hairy roots cultured on hormone-free half-strength MS medium containing 5% sucrose under dark condition mostly stimulated the growt...

Withania somnifera (L) Dunal. and Solanum surattense Burm f., the two medicinally important members of family Solanaceae, were investigated for induction of hairy roots using soil borne bacterium, Agrobacterium rhizogenes. Explants like stem segments, hypocotyls and leaves with midrib were infected with the bacterium in vitro. In both plants, extensive hairy roots were induced from leaf explant...

Nicotiana benthamiana was transformed with a taxadiene synthase (TS) gene for the de novo synthesis of taxadiene. The successfully transformed lines of N. benthamiana producing taxadiene was further cultivated for root culture to produce taxadiene in in vitro system. The roots of lines TSS-5, TSS-7, TSS-8 and TSS-10 accumulated 14.6 22.5 μg/g (dw) taxadiene. Methyl jasmonate treatment to the TS...

* Linkages between plant growth rate and root responses to soil moisture heterogeneity were investigated. * Root dynamics were studied using genetically identical shoots (Vitis vinifera cv. Merlot) with genetically distinct root systems that promote higher (HSV) and lower (LSV) shoot growth rates (1103P and 101-14 Mgt, respectively). Three quantities of irrigation replenished different amounts ...

The common soil bacteria Agrobacterium tumefaciens and Agrobacterium rhizogenes are unique genetic pathogens capable of fundamentally redirecting plant metabolism in order to generate macroscopic tissue masses (crown galls and hairy roots, respectively) which support the growth of large populations of Agrobacteria. Central to pathogenesis is the horizontal transfer of a suite of oncogenes from ...

Macro and micro-elements, carbon sources and elicitors play a central role during Panax ginseng hairy root growth, biomass and ginsenoside production and also influence numerous root developmental stages in largescale bioreactor culture. Due to the lack of biosynthetic nutrients and signalling-inducing nutrients, the regulatory role of mineral elements is not well understood. We have geneticall...