Desiccation-tolerant gymnosperm embryos
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United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
Dec 5, 1997
filing date -
Dec 19, 1991
priority date (Note) -
Expired
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Abstract
A desiccation-tolerant mature viable gymnosperm somatic embryo is characterized by a moisture content of less than about 55%. Preferably the moisture content is less than about 45%, and for optimal storage capability at freezing temperatures, less than about 36%. The embryo may have a dry weight and per embryo lipid content higher than the lipid content and dry weight of the corresponding gymnosperm zygotic embryo. Preferred desiccation-tolerant gymnosperm somatic embryos are coniferous somatic embryos having a moisture content of less than about 55%.
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