Micropropagation of squill (Charybdis numidica) through nodule culture

作者：Kongbangkerd A; Kopf A; Allacher P; Wawrosch C; Kopp B^*

来源：Plant Cell Reports, 2005, 23(10-11): 673-677.

DOI：10.1007/s00299-004-0907-7

• squill
• bufadienolides
• organogenesis
• in vitro propagation
• meristematic nodules

A micropropagation protocol for squill (Charybdis numidica, Hyacinthaceae) was developed using nodule culture. Nodule formation on leaf sections was induced in liquid Murashige and Skoog ( MS) medium supplemented with 20 muM N-6-benzylaminopurine (BA) under dark conditions. Nodules were cultured on semisolid MS medium with factorial combinations of BA ( 0 40 muM) and alpha-naphthaleneacetic acid (NAA) ( 0 - 10 muM) under continuous light. Shoot regeneration from nodules occurred at varying degrees on all media. The highest number of shoots was formed on medium containing 2.5 muM NAA and 20 muM BA, while the maximum number of regenerated bulblets per gram nodule was induced on culture medium supplemented with 2.5 mM NAA alone. Regenerated shoots were successfully rooted at approximately 92% on semi-solid MS medium supplemented with 10 muM indole-3-acetic acid (IAA). Plantlets could be hardened and grew well after transfer to the greenhouse. Chemical analyses showed consistent bufadienolide patterns from cloned plantlets and the mother plant.

• 出版日期2005-3