Photosynthesis in Fescue: III. Rates of Electron Transport in a Polyploid Series of Tall Fescue Plants

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 u...

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Veröffentlicht in:	Plant physiology (Bethesda) 1981-11, Vol.68 (5), p.1110-1114
Hauptverfasser:	Krueger, Roger W., Miles, Donald
Format:	Artikel
Sprache:	eng
Schlagworte:	Chloroplasts Diploidy electron transport Festuca arundinacea Genotypes Hexaploidy Luminous intensity Photosynthesis Plants Ploidies polyploids Polyploidy Tetraploidy
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container_title	Plant physiology (Bethesda)
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creator	Krueger, Roger W. Miles, Donald
description	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.
doi_str_mv	10.1104/pp.68.5.1110
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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. 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source	JSTOR Archive Collection A-Z Listing; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects	Chloroplasts Diploidy electron transport Festuca arundinacea Genotypes Hexaploidy Luminous intensity Photosynthesis Plants Ploidies polyploids Polyploidy Tetraploidy
title	Photosynthesis in Fescue: III. Rates of Electron Transport in a Polyploid Series of Tall Fescue Plants
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