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| DOI: | 10.1104/pp.68.4.894 |
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| Web URL(s): | http://www.plantphysiol.org/content/68/4/894.full.pdf+html
Last checked: 08/08/2012
Requires: PDF Reader
Access conditions: Content is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Joseph, Cynthia M.;
Randall, Douglas D.;
Nelson, Curtis J. |
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| Author Affiliation: | Joseph and Randall: Biochemistry Department; Nelson: Agronomy Department, University of Missouri, Columbia, MO |
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| Title: | Photosynthesis and ribulose-1,5-bisphosphate carboxylase of polyploid tall fescue |
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| Article Series: | [Photosynthesis in tall fescue], part 2 |
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| Source: | Plant Physiology. Vol. 68, No. 4, October 1981, p. 894-898. |
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| # of Pages: | 5 |
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| Related Web URL: | http://www.plantphysiol.org/content/68/4/894.abstract
Last checked: 08/08/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Festuca arundinacea; Photosynthesis; Enzymes; Ploidy; Chlorophyll content
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| Abstract/Contents: | "Net photosynthesis on a leaf area and leaf weight basis increased significantly with ploidy in a 4X, 6X, 8X and 10X allopolyploid series of tail fescue (Festuca arundinacea Schreb.). Total protein did not increase significantly with ploidy. Rocket immunoelectrophoresis was used to quantitate ribulose-1,5-bisphosphate carboxylase (RuBPCase) protein. RuBPCase content, expressed on both a concentration basis and as a percentage of total protein increased significantly with ploidy in both field and greenhouse experiments. The range of RuBPCase content was 16 to 73% of total protein and 2.8 and 6.5 mg/ml of extract. Specific activity of RuBPCase did not increase significantly with ploidy. Chlorophyll concentration increased as a quadratic function of ploidy, with the mean for 8X genotypes representing maximal chlorophyll content. Evidence is presented that increasing concentrations of RuBPCase are associated with higher net photosynthesis rates in tall fescue. This suggests that RuBPCase may represent a marker for increased net photosynthesis. RuBPCase was extracted in a partially active state or inhibited state and must be fully activated by Mg2+ and HCO3- to measure maximal activities. Polyploidization appeared to increase selectively the allocation of total protein for synthesis of RuBPCase; however, there was also a range for carboxylase content among the genotypes within a given ploidy level." |
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| Language: | English |
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| References: | 29 |
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| See Also: | See also part 1 "High rate of electron transport and phosphorylation in chloroplasts of hexaploid plants" Plant Physiology, 67(4) April 1981, p. 763-767, R=3832. R=3832
See also part 3 "Rates of electron transport in a polyploid series of tall fescue plants" Plant Physiology, 68(5) November 1981, p. 1110-1114, R=3818. R=3818
See also part 4 "Carbon assimilation pattern in two genotypes of tall fescue differing in net photosynthesis rates" Plant Physiology, 72(1) May 1983, p. 16-21, R=3855. R=3855
See also part 5 "Analysis of high PSI activity in a decaploid genotype" Plant Physiology, 76(4) December 1984, p. 903-909, R=3560. R=3560 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Joseph, C. M., D. D. Randall, and C. J. Nelson. 1981. Photosynthesis and ribulose-1,5-bisphosphate carboxylase of polyploid tall fescue. Plant Physiol. 68(4):p. 894-898. |
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| DOI: 10.1104/pp.68.4.894 |
| Web URL(s):
http://www.plantphysiol.org/content/68/4/894.full.pdf+html
Last checked: 08/08/2012
Requires: PDF Reader
Access conditions: Content is within a limited access website |
| 
MSU catalog number: QK 1 .P68 |
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