Plant regeneration from mesophyll protoplasts of Lactuca perennis
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Cultured protoplasts of young, unexpanded leaves of the wild lettuce, Lactuca perennis, divided to produce cell colonies in an agarose-solidified, modified MS medium with reduced levels of inorganic salts, together with 2,4-d, NAA and zeatin at 0.2, 0.1 and 0.5 mg 1-1 respectively. Organogenesis followed the initial transfer of protoplastderived colonies to modified MS medium with 2,4-d, NAA and zeatin (0.1, 1.0 and 0.2 mg 1-1 respectively) and then to full-strength MS medium with 6-BA and NAA (0.4 and 0.05 mg 1-1). Shoots were rooted on agar-solidified MS medium lacking growth regulators. Regenerated shoots were established ex vitro, 21 weeks after protoplast isolation.
Key wordsLactuca perennis mesophyll protoplasts plant regeneration wild lettuce
bovine serum albumin
- f. wt.
2 [N-morpholino]ethane sulphonic acid
Murashige & Skoog (1962)
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