title: Assessment of the potentiality of TDZ on multiple shoot induction in Bauhinia tomentosa L., a woody legume.
abstract: An efficient and reproducible protocol for in vitro multiplication of Bauhinia tomentosa L. was developed. Multiple shoots were regenerated from cotyledonary node and stem nodal segments excised from in vitro raised seedlings on Murashige and Skoog (MS) medium supplemented with different concentrations (0.1, 0.3, 0.5, 0.8 and 1.0 μM) of thidiazuron (TDZ). The maximum response (62.6%) was recorded on MS medium amended with 0.8 μM TDZ. A long exposure to TDZ for 8 weeks showed abnormalities such as fasciation and compact shoots formation. To avoid adverse effects of prolonged exposure to TDZ in long-term establishment, the culture were transferred to TDZ free MS medium for further multiplication and elongation. The highest number of shoots and shoot length were recorded at the end of fourth subculture passage. Ex vitro rooting was achieved when the basal cut end of regenerated shoots were dipped in 200 μM indole-3-butyric acid (IBA) for half an hour followed by their transplantation in plastic pots filled with sterile Soilrite™ where 60% plantlets grew well and all expressed normal development.
authors.affiliation: Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India. anism1@rediffmail.com
authors.forename: Ruphi
authors.initials: R
authors.lastname: Naz
authors.forename: M
authors.initials: M
authors.lastname: Anis
authors.forename: I M
authors.initials: IM
authors.lastname: Aref
mesh_terms: D036481:Bauhinia / Q000187:drug effects* / Q000254:growth & development; D018548:Cotyledon / Q000187:drug effects / Q000254:growth & development; D003470:Culture Media; D004305:Dose-Response Relationship, Drug; D010671:Phenylurea Compounds / Q000494:pharmacology* / Q000633:toxicity; D010937:Plant Growth Regulators / Q000494:pharmacology* / Q000633:toxicity; D018520:Plant Shoots / Q000187:drug effects* / Q000254:growth & development; D012038:Regeneration / Q000187:drug effects; D036226:Seedlings / Q000187:drug effects* / Q000254:growth & development; D013830:Thiadiazoles / Q000494:pharmacology* / Q000633:toxicity; D013997:Time Factors
chemical_list: D003470:Culture Media; D010671:Phenylurea Compounds; D010937:Plant Growth Regulators; D013830:Thiadiazoles; C016785:thidiazuron