| |
| Publication Type:
| Refereed |
|---|
| Author(s): | Bredemeijer, G. M. M.;
Esselink, G. |
|---|
| Author Affiliation: | Centre for Plant Breeding and Reproduction Research, CPRO-DLO, PO Box 16, NL-6700 AA Wageningen, The Netherlands |
|---|
| Title: | Sugar metabolism in cold-hardened Lolium perenne varieties |
|---|
| Source: | Plant Varieties and Seeds. Vol. 8, No. 3, December 1995, p. 187-195. |
|---|
| Publishing Information: | Oxford: Blackwell Scientific Publications |
|---|
| # of Pages: | 9 |
|---|
| Keywords: | TIC Keywords: Sugars; Metabolism; Cold resistance; Enzyme activity; Lolium perenne
|
|---|
| Cultivar Names: | Avenue; Mondial; Troubadour; Elka; Barry; Score; Yatsyn 1 |
|---|
| Abstract/Contents: | "Seven varieties of Lolium perenne L., representing a wide range of winter hardiness, were used to investigate relationships between freezing tolerance of leaves and levels of non-structural carbohydrates and key enzymes of sugar metabolism in leaves. Relatively small differences were observed in freezing tolerance assessed by the electrolyte leakage method among six of the seven varieties; only the variety Yatsyn 1 was significantly less tolerant than the others. The differences in contents of sugars and the related enzymes phosphofructokinase (PFK), glucose 6-phosphate dehydrogenase (G6PDH), 6-phosphogluconate dehydrogenase (6PGDH) and fructose-1,6-biphosphatase (FBPase) among the six varieties were also small and non-significant. In cv. Yatsyn 1, the lower degree of freezing tolerance was associated with significantly lower levels of sugars, enzymes, and total protein. The lower activity of PFK was mainly due to reduced activity of the high molecular weight cytosolic form of the enzyme. A similar phenomenon was observed in cv. Baroldi of the frost sensitive species Westerwolds ryegrass (Lolium multiflorum Lam.). These results support the view that high levels of sugars promote the development of maximum hardiness only when associated with high metabolic activity. The consequence of the latter for the usefulness of the characters investigated for screening purposes is discussed." |
|---|
| Language: | English |
|---|
| References: | 28 |
|---|
| Note: | Figures
Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bredemeijer, G. M. M., and G. Esselink. 1995. Sugar metabolism in cold-hardened Lolium perenne varieties. Plant Var. Seeds. 8(3):p. 187-195. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=36866 |
| If there are problems with this record, send us feedback about record 36866. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 4 .P55 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
