In Vitro Flower Induction from Shoots Regenerated from Cultured Axillary Buds of Endangered Medicinal Herb Swertia chirayita H. Karst.
In vitro flowering and effective micropropagation protocol were studied in Swertia chirayita, an important medicinal plant using axillary bud explants. The Murashige and Skoog's medium (MS) supplemented with benzyl amino purine (BAP) 1.0 mg L(-1) and adenine sulfate 70.0 mg L(-1) was found optimum for production of multiple shoots. In the present study, incubation of flowering cultures on BAP supplemented medium (during shoot multiplication) was found necessary for flowering (6 weeks). However, concentrations of auxins-like IBA (0-2.0 mg/L) were ineffective to form reproductive buds. Subculture duration, photoperiod, and carbon source type do have influence on the in vitro flowering. The mature purple flowers were observed when the cultures were maintained in the same medium. This is the very first report that describes in vitro flowering system to overcome problems associated with flower growth and development as well as lay foundation for fruit and seed production in vitro in Swertia chirayita.
Department of Biotechnology, Arni University, Kathgarh, Indora, Himachal Pradesh, India.
Vikas
0000-0003-1781-1056
V
Sharma
Plant Molecular Biology Lab, Department of Biotechnology, Sardar Bhagwan Singh Post Graduate Institute of Biomedical Sciences and Research, Balawala, Dehradun, India.
Barkha
B
Kamal
Plant Molecular Biology Lab, Department of Biotechnology, Sardar Bhagwan Singh Post Graduate Institute of Biomedical Sciences and Research, Balawala, Dehradun, India.
Nidhi
N
Srivastava
HNB Garhwal Central University, Campus Pauri, Pauri Garhwal, India.
Anoop Kumar
AK
Dobriyal
Plant Molecular Biology Lab, Department of Biotechnology, Sardar Bhagwan Singh Post Graduate Institute of Biomedical Sciences and Research, Balawala, Dehradun, India.
Vikash Singh
VS
Jadon