Abstract
A continuous micropropagation was established from protoplasts of thegreen alga Enteromorpha intestinalis. The effects of two differentcrude enzymes and the osmolarity at different concentrations of the enzymesolution on algal protoplast yields were tested. The optimal enzymecomposition for cell wall digestion and protoplast viability was 2%cellulase R 10 Onozuka and 2% Aplysie with 0.5 m mannitol. Largenumbers of Enteromorpha protoplasts were released (10.0 × 106protoplasts from 1 g fresh thalli) and settled on a rangeof substrata. Regeneration of the protoplasts followed the normal patternfor this species. Conditions for pure cultures and efficient systems offloating supports with nets were determined to optimise the product qualityof plantlets of Enteromorpha. A promising storage process has beendeveloped which involves including protoplasts in beads of alginic acid gel.Plants regenerated from protoplasts may also be used as seedstock tofacilitate propagation for macroalgal culture.
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