Ploidy Effects in Isogenic Populations of Alfalfa (Medicago sativa L.)
Open Access
- 1 April 1983
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 71 (4) , 966-968
- https://doi.org/10.1104/pp.71.4.966
Abstract
Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCase) was isolated from isogenic diploid-tetraploid and tetraploid-octoploid sets of alfalfa (Medicago sativa L.) leaves. Molecular weights of RuBPCase subunits were similar across ploidy levels of both isogenic sets with subunits of 52,000 and 14,000. Apparent Km(CO2) values and substrate specificity factors (VcKo/VoKc) of RuBPCase were similar across ploidy levels of both isogenic sets. These results indicate that ploidy had no effect on the kinetic properties of RuBPCase in alfalfa.Keywords
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