Ploidy Effects in Isogenic Populations of Alfalfa (Medicago sativa L.) | Zendy

Steven P. Meyers | Zendy; A. Chris Brinegar | Zendy; L. E. Schrader | Zendy; Douglas B. Jordan | Zendy; William L. Ogren | Zendy

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Ploidy Effects in Isogenic Populations of Alfalfa (Medicago sativa L.)

Author(s) -

Steven P. Meyers,

A. Chris Brinegar,

L. E. Schrader,

Douglas B. Jordan,

William L. Ogren

Publication year - 1983

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.71.4.966

Subject(s) - medicago sativa , ploidy , biology , oxygenase , pyruvate carboxylase , botany , rubisco , enzyme , photosynthesis , biochemistry , gene

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 K(m)(CO(2)) values and substrate specificity factors (V(c)K(o)/V(o)K(c)) 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.

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