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(pinus banksiana)

Seed Science Research (1)

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1 results

Purification and characterization of an aspartyl proteinase from dry jack pine seeds
Jacqueline Bourgeois, L. Malek
Journal:

Seed Science Research / Volume 1 / Issue 3 / September 1991

Published online by Cambridge University Press:

19 September 2008, pp. 139-147
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A high-molecular-weight aspartyl proteinase complex, sensitive to pepstatin A was purified to near electrophoretic homogeneity from dry seeds ofjack pine (Pinus banksiana, Lamb.). Two partial activities, endo-and exo-proteinolytic, were associated with the complex, judged by the analysis of haemoglobin hydrolysis products. The high activity of this enzyme in dry jack pine seed suggests a possible function in early germination.