Indian Society of Genetics & Plant Breeding

Evaluation of influence of different strains of Agrobacterium rhizogenes on efficiency of hairy root induction in Rauwolfia serpentina

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An improved protocol was established for hairy root
induction in
Rauwolfia serpentina using two strains of
Agrobacterium rhizogenes MTCC 532 and 2364. Hairy root
induction efficiency was standardized based on infection
time, co-cultivation period, OD
600 and acetosyringone
concentration. Higher transformation efficiency was
established using MTCC 532 (31%) and MTCC 2364 (24%)
with 30 min infection time, 72 h co-cultivation period and
0.6 OD
600. Transformation efficiency was further enhanced
to 55 % with 125 ┬ÁM acetosyringone. MTCC 532 was proven
a better strain over the MTCC 2364 in all the tested factors.
Putative transgenic hairy roots were confirmed by
polymerase chain reaction using
rolA specific primers.
Biomass of randomly selected 5 hairy root lines was also
significantly enhanced. No significant difference of growth
was recorded among the lines except line no 4. In the
present study, an enhanced system for
-mediated hairy root culture was established
which offer an effective means to attain improved
transformation efficiency and ultimately beneficial for the
industrial scale
in vitro production of the secondary

Keywords: Hairy roots, Agrobacterium rhizogenes, Rauwolfia serpentina, MTCC 532, MTCC 2364


Year: 2019
Volume: 79
Issue: 4
Article DOI: 10.31742/IJGPB.79.4.16
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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