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| Web URL(s): | http://www.jstor.org/stable/2557993
Last checked: 12/18/2015
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| Publication Type:
| Refereed |
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| Author(s): | Prud'homme, M. P.;
Boucaud, J.;
Gastal, F.;
Belanger, G. |
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| Author Affiliation: | Laboratoire de Physiologie et de Biochimie Vegetales, IRBA, France; Station d'Ecophysiologie des plantes fourrageres, INRA, France; Research Station, Agriculture Canada, Canada |
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| Title: | Temperature effects on partitioning of 14C assimilates in tall fescue (Festuca arundinacea Schreb.) |
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| Source: | New Phytologist. Vol. 123, No. 2, February 1993, p. 255-261. |
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| Publishing Information: | Oxford, England: Cambridge University Press. |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Festuca arundinacea; Fructans; Sucrose; Carbohydrates
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| Abstract/Contents: | "Fructan synthesis and carbon partitioning to roots of tall fescue (Festuca arundinacea Schreb.) were studied with a 14C-labelling technique at three growth temperatures: 24/17 C, 16/10 C and 8/5 C (day/night). Plants at 16/10 C and 8/5 C had an increased proportion of assimilates allocated to the root system; 10 d after exposure at 14CO2, the relative carbon partitioning to the roots averaged 12.5, 16.3 and 26.8% respectively, at 24/17 C, 16/10 C and 8/5 C. Chilling temperatures induced an increase in the amounts of sucrose and fructans in leaves. Interestingly, a similar pattern occurred in roots where low-DP fructans (DP<8) are the predominant non-structural carbohydrate constituent. Incorporation of 14CO2 into root oligo- and polysaccharides showed a progressive movement of radioactivity from sucrose to fructans. These results show that the roots can serve as a carbon storage organ and that fructan synthesis depends on sucrose supply. The function of the fructan stored in the roots is unknown." |
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| Language: | English |
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| References: | 36 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Prud'homme, M. P., J. Boucaud, F. Gastal, and G. Belanger. 1993. Temperature effects on partitioning of 14C assimilates in tall fescue (Festuca arundinacea Schreb.). New Phytol. 123(2):p. 255-261. |
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| Web URL(s):
http://www.jstor.org/stable/2557993
Last checked: 12/18/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .N38 |
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