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. 1981 Nov;68(5):1110–1114. doi: 10.1104/pp.68.5.1110

Photosynthesis in Fescue 1

III. RATES OF ELECTRON TRANSPORT IN A POLYPLOID SERIES OF TALL FESCUE PLANTS

Roger W Krueger 1, Donald Miles 1
PMCID: PMC426054  PMID: 16662060

Abstract

Photosystem I electron transport activity has been found to be considerably higher in a decaploid tall fescue (Festuca arundinacea Schreb.) genotype as compared to a common hexaploid genotype. The decaploid genotype also displayed a higher photosystem whole chain (Photosystem II plus Photosystem I uncoupled) activity, suggesting a connection between polyploidy and increased electron transport activity. However, when a polyploidy series of tall fescue, ranging from diploid to decaploid with several different genetic isolates at each ploidy level, was examined in natural growth conditions, no effect of increasing genome content on electron transport and photophosphorylation was found. These results suggest that a gene component of one of the genomes involved may be responsible for the increased activity rather than simply the total chromosome content.

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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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