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Meyers SP, Nichols SL, Baer GR, et al. Ploidy effects in isogenic populations of alfalfa : I. Ribulose-1,5-bisphosphate carboxylase, soluble protein, chlorophyll, and DNA in leaves. Plant Physiol. 1982;70(6):1704-9doi: 10.1104/pp.70.6.1704.
Meyers, S. P., Nichols, S. L., Baer, G. R., Molin, W. T., & Schrader, L. E. (1982). Ploidy effects in isogenic populations of alfalfa : I. Ribulose-1,5-bisphosphate carboxylase, soluble protein, chlorophyll, and DNA in leaves. Plant physiology, 70(6), 1704-9. https://doi.org/10.1104/pp.70.6.1704
Meyers, S P, et al. "Ploidy effects in isogenic populations of alfalfa : I. Ribulose-1,5-bisphosphate carboxylase, soluble protein, chlorophyll, and DNA in leaves." Plant physiology vol. 70,6 (1982): 1704-9. doi: https://doi.org/10.1104/pp.70.6.1704
Meyers SP, Nichols SL, Baer GR, Molin WT, Schrader LE. Ploidy effects in isogenic populations of alfalfa : I. Ribulose-1,5-bisphosphate carboxylase, soluble protein, chlorophyll, and DNA in leaves. Plant Physiol. 1982 Dec;70(6):1704-9. doi: 10.1104/pp.70.6.1704. PMID: 16662748; PMCID: PMC1065959.
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Plant Physiol. 1982 Dec;70(6):1704-9. doi: 10.1104/pp.70.6.1704.

Ploidy effects in isogenic populations of alfalfa : I. Ribulose-1,5-bisphosphate carboxylase, soluble protein, chlorophyll, and DNA in leaves.

Plant physiology

S P Meyers, S L Nichols, G R Baer, W T Molin, L E Schrader

Affiliations

  1. Department of Agronomy, University of Wisconsin, Madison, Wisconsin 53706.

PMID: 16662748 PMCID: PMC1065959 DOI: 10.1104/pp.70.6.1704

Abstract

The influence of polyploidization on ribulose-1,5-bisphosphate carboxylase (RuBPCase), buffer-soluble protein (BSP), chlorophyll (Chl), and DNA was examined in fully expanded leaves of isogenic diploid-tetraploid (DDC 2X-4X) and tetraploid-octoploid (IC 4X-8X) sets of alfalfa (Medicago sativa L.). The concentration of RuBPCase in leaf extracts was determined by rocket immunoelectrophoresis. Activities of RuBPCase, expressed per milligram protein or per milligram Chl, and leaf tissue concentrations of RuBPCase, BSP, Chl, and DNA were similar between ploidy levels of the DDC 2X-4X set. Tetraploids and octoploids were similar in RuBPCase activities, expressed per milligram protein or per milligram Chl, and in leaf tissue concentrations of RuBPCase and DNA. Octoploids were significantly lower than tetraploids in concentrations of Chl and BSP.When compared on a per leaf basis, tetraploids were 80% higher in BSP and essentially double comparable diploids in fresh weight, RuBPCase, Chl, and DNA. The observation that leaves of the DDC tetraploid population contain twice as much DNA as comparable diploids suggests that leaves of both ploidy levels contain similar numbers of cells. Leaves of the octoploid population were 33% to 80% higher than corresponding tetraploids in BSP, fresh weight, RuBPCase, Chl, and DNA. Ratios of RuBPCase to DNA and Chl to DNA were similar across ploidy levels of both isogenic sets suggesting that cellular content of Chl and RuBPCase increases proportionately with the amount of DNA per cell.

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