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. 1977 Jan;59(1):38–41. doi: 10.1104/pp.59.1.38

Ribulose Bisphosphate Carboxylase

Altered Genetic Expression in Tall Fescue 1

Douglas D Randall a,2, Curtis J Nelson a,3, Kay H Asay a,3,4
PMCID: PMC542326  PMID: 16659784

Abstract

A decaploid tall fescue (Festuca arundinacea Schreb) genotype has been found which exhibits net photosynthetic rates of 32 to 41 mg CO2/dm2·hour as opposed to a mean of 22 mg CO2/dm2·hour for 10 hexaploid genotypes. The decaploid genotype exhibited a ribulose 1,5-bisphosphate (RuBP) carboxylase specific activity 1.3- to 2-fold higher than typical tall fescue genotypes. Specific activities of photorespiratory enzymes and nitrate reduction enzymes were lower in the decaploid than the hexaploid genotypes. Results suggest that genetic expression of RuBP carboxylase activity may have been altered to increase the net photosynthesis rate in the decaploid genotype.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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