Abstract
Pieces of an embryogenic mass (EMS) induced in culture from immature fruits of pistachio, Pistacia vera L., were encapsulated into calcium alginate beads. Somatic embryos were also encapsulated individually into calcium alginate beads to produce synthetic seeds. The viability of the encapsulated EMS and somatic embryos was investigated immediately following encapsulation, and after storage for 60 days at 4°C. The encapsulated-stored EMS fragments recovered their original proliferative capacity after two months storage following two sub-cultures, but non-encapsulated-stored EMS failed to recover. The conversion frequency of synthetic seeds to seedling plants was 14% after storage for 60 days at 4°C, from which it may be concluded that encapsulation is a practical procedure for short-term storage of embryogenic pistachio tissue, and may be applicable to the preservation of desirable elite genotypes.
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