THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT.
S ummary The effect of low temperature on diel changes in net gas exchange, carbohydrate content and export, and on the extractable activities of sucrose phosphate synthase and acid invertase from leaves of Poa annua (a ruderal grass) and Poa × jemtlandica (a subarctic grass) was investigated. Expos...
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Language: | English |
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Wiley
1987
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Online Access: | http://dx.doi.org/10.1111/j.1469-8137.1987.tb00862.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1987.tb00862.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1987.tb00862.x |
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crwiley:10.1111/j.1469-8137.1987.tb00862.x 2024-06-02T08:15:03+00:00 THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. BORLAND, ANNE M. FARRAR, J. F. 1987 http://dx.doi.org/10.1111/j.1469-8137.1987.tb00862.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1987.tb00862.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1987.tb00862.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 New Phytologist volume 105, issue 2, page 255-263 ISSN 0028-646X 1469-8137 journal-article 1987 crwiley https://doi.org/10.1111/j.1469-8137.1987.tb00862.x 2024-05-03T11:41:42Z S ummary The effect of low temperature on diel changes in net gas exchange, carbohydrate content and export, and on the extractable activities of sucrose phosphate synthase and acid invertase from leaves of Poa annua (a ruderal grass) and Poa × jemtlandica (a subarctic grass) was investigated. Exposure for 5 d to a temperature of 7°C significantly reduced the rate of net photosynthesis of P. annua but had no effect that of P. × jemtlandica. In both species, soluble sugars constituted 20 % of the dry weight and showed net accumulation over 24 h. There was approximately twice the concentration of fructans in the leaves of P. x jemtlandica compared with P. annua. During the 16 h photoperiod, the leaves of P. × jemtlandica stored twice as much photosynthate as the leaves of P. annua. However, the higher rate of export from the leaves of P. × jemtlandica in the dark compared to P. annua resulted in the allocation of similar proportions of photosynthate to the processes of storage, respiration and export in leaf blades of both species over a 24 h period. Low temperature resulted in a decrease in the extractable activity of sucrose phosphate synthase from P. annua but not from P. × jemtlandica. The activity of acid invertase was reduced by exposure in both species. Article in Journal/Newspaper Subarctic Wiley Online Library New Phytologist 105 2 255 263 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
S ummary The effect of low temperature on diel changes in net gas exchange, carbohydrate content and export, and on the extractable activities of sucrose phosphate synthase and acid invertase from leaves of Poa annua (a ruderal grass) and Poa × jemtlandica (a subarctic grass) was investigated. Exposure for 5 d to a temperature of 7°C significantly reduced the rate of net photosynthesis of P. annua but had no effect that of P. × jemtlandica. In both species, soluble sugars constituted 20 % of the dry weight and showed net accumulation over 24 h. There was approximately twice the concentration of fructans in the leaves of P. x jemtlandica compared with P. annua. During the 16 h photoperiod, the leaves of P. × jemtlandica stored twice as much photosynthate as the leaves of P. annua. However, the higher rate of export from the leaves of P. × jemtlandica in the dark compared to P. annua resulted in the allocation of similar proportions of photosynthate to the processes of storage, respiration and export in leaf blades of both species over a 24 h period. Low temperature resulted in a decrease in the extractable activity of sucrose phosphate synthase from P. annua but not from P. × jemtlandica. The activity of acid invertase was reduced by exposure in both species. |
format |
Article in Journal/Newspaper |
author |
BORLAND, ANNE M. FARRAR, J. F. |
spellingShingle |
BORLAND, ANNE M. FARRAR, J. F. THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
author_facet |
BORLAND, ANNE M. FARRAR, J. F. |
author_sort |
BORLAND, ANNE M. |
title |
THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
title_short |
THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
title_full |
THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
title_fullStr |
THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
title_full_unstemmed |
THE INFLUENCE OF LOW TEMPERATURE ON DIEL PATTERNS OF CARBOHYDRATE METABOLISM IN LEAVES OF POA ANNUA L. AND POA× JEMTLANDICA (ALMQ.) RICHT. |
title_sort |
influence of low temperature on diel patterns of carbohydrate metabolism in leaves of poa annua l. and poa× jemtlandica (almq.) richt. |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.1111/j.1469-8137.1987.tb00862.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8137.1987.tb00862.x https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.1987.tb00862.x |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
New Phytologist volume 105, issue 2, page 255-263 ISSN 0028-646X 1469-8137 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/j.1469-8137.1987.tb00862.x |
container_title |
New Phytologist |
container_volume |
105 |
container_issue |
2 |
container_start_page |
255 |
op_container_end_page |
263 |
_version_ |
1800739104141344768 |