| dc.description.abstract | Drought, one of the main abiotic stresses, leads to the reduction of yield and growth of soybean
(Glycine max L). Previous studies showed that stress-inducible overexpression of adenine isopentenyl
transferase (IPT), which encodes a rate limiting enzyme in cytokinin biosynthesis, could be a potential solution
to improve the drought tolerance in plants. Keeping this scenario in view, our research group successfully
generated GmIPT08-overexpressing transgenic soybean plants as materials for investigating the role of GmIPT08
to plant drought tolerance. In this study, two independent homozygous GmIPT08-overexpressing transgenic
soybean lines have been screened. Expression analysis revealed that the GmIPT08 expression in transgenic plants
was significantly higher than under normal and dehydration treatment. In addition, statistical analyses related to
root and shoot-traits demonstrated that both transgenic lines possessed better shoot lengths, better production of
shoot and root dry matters, and greater tissue relative water content compared to the control wild-type plants upon
drought stress condition.
Keywords: Abiotic stress, Glycine max L., cytokinin, IPT gene, drought stress tolerance, gene expression,
physiological expression, GmIPT08-carrying transgenic plants. | en_US |
