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Storage protein accumulation during zygotic and somatic embryo development in Picea abies (Norway spruce)
Dept of Physiological Botany, University of Uppsala.
1990 (English)In: Physiologia Plantarum: An International Journal for Plant Biology, ISSN 0031-9317, E-ISSN 1399-3054, Vol. 80, no 3, p. 441-445Article in journal (Refereed) Published
Abstract [en]

Total protein was extracted from zygotic embryos and from somatic embryos of Picea abies (L.) Karst. (Norway spruce) cultured in vitro at different times during their development. An analysis by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and 2-dimensional gel electrophoresis of the protein extracts showed that protein composition and the temporal changes in protein abundance were very similar in the two embryo types. Both zygotic and somatic embryos accumulated storage proteins in abundance during their maturation phase of growth; the somatic embryos when cultured on medium containing 90 mM sucrose and 7.6 μM ABA. The major storage proteins are composed of polypeptides with molecular masses of about 22, 28, 33 and 42 kDa and they are identical in both embryo types according to their molecular mass and average isoelectric points. These proteins are also the most abundant proteins in the female gametophytic tissue of the mature seed. 

Place, publisher, year, edition, pages
1990. Vol. 80, no 3, p. 441-445
National Category
Biological Sciences
Research subject
Natural Science, Cell and Organism Biology
Identifiers
URN: urn:nbn:se:lnu:diva-984DOI: 10.1111/j.1399-3054.1990.tb00065.xOAI: oai:DiVA.org:lnu-984DiVA, id: diva2:307767
Available from: 2010-04-01 Created: 2010-04-01 Last updated: 2017-12-12Bibliographically approved

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Hakman, Inger

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