Change in total phenolic content and antibacterial activity in regenerants of Vitex negundo L. |
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Authors: | Naseem Ahmad Md Imran Khan Sarfaraz Ahmed Saad Bin Javed Mohammad Faisal Mohammad Anis Sumbul Rehman Syed Mohammad Umair |
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Institution: | 1. Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh, 202 002, India 2. Natural Product Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, 202 002, India 3. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia 4. Department of Ilmul Advia, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh, 202 002, India
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Abstract: | A valuable medicinal plant, Vitex negundo L. has been investigated for its regeneration potential using shoot tip explants. Out of a range of concentrations of cytokinins 6-benzyl adenine (BA), 6-furfurylaminopurine, 2-isopentenyl adenine] used as supplement to Murashige and Skoog medium (MS), BA at 5.0 μM concentration proved best for multiple shoot induction yielding 3.60 ± 0.50 shoots after 8 weeks of culture. Inclusion of a low concentration of an auxin with optimal cytokinin concentration favoured shoot multiplication and the optimum response was observed on MS medium supplemented with BA (5.0 μM) along with α Naphthalene acetic acid (0.5 μM), where 65.0 ± 1.73 % cultures responded with a mean number of 4.80 ± 0.58 shoots per explants after 8 weeks of culture. Ex vitro rooting of in vitro derived microshoots was achieved upon dipping the cut ends of microshoots in 500 μM indole-3-butyric acid for 10 min followed by transfer to thermocol cups containing sterile soilrite. About 95 % of the plantlets survived the acclimatization procedure and were transferred to greenhouse and finally to field. Screening of the antibacterial activity and estimation of total phenolic content of ethanolic extracts of micropropagated plants were also carried out and compared with that of the mother plant. |
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