Abstract.
Efficient protocols of axillary bud multiplication and indirect organogenesis were established for Holostemma ada-kodien Schult. (Asclepiadaceae). Murashige and Skoog (MS) medium supplemented with 2.0 mg l–1 N6-benzylaminopurine (BAP) and 0.5 mg l–1 indole-3-butyric acid (IBA) induced an average of eight shoots per node and was the best for axillary bud proliferation. Subsequent cultures enhanced the number of shoots. The explant source of callus and the growth regulator inducing the callus exhibited significant influence on organogenesis. Callus developed from the basal cut end of the node explants differentiated more than 15 shoots on MS medium fortified with 1.5 mg l–1BAP. Callus from internode explants developed fewer shoots than callus from the basal cut ends of node explants. Leaf-derived callus did not undergo organogenesis. The abscission of leaves and shoot tips of the developed shoots was prevented by the addition of AgNO3 or CoCl2, but with a concomitant significant reduction in the number of shoots. Half-strength solid MS or liquid medium with 0.05 mg l–1 IBA exhibited the best in vitro rooting. Ninety percent of the rooted shoots survived in the field.
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Martin, .K. Rapid propagation of Holostemma ada-kodien Schult., a rare medicinal plant, through axillary bud multiplication and indirect organogenesis. Plant Cell Rep 21, 112–117 (2002). https://doi.org/10.1007/s00299-002-0483-7
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DOI: https://doi.org/10.1007/s00299-002-0483-7