Abstract
The control of the fructose 2,6-bisphosphate (Fru2,6P2) concentration and its possible role in controlling carbohydrate synthesis and degradation are discussed. This regulator metabolite is involved in the fine tuning of photosynthetic metabolism, and in controlling photosynthetic partitioning, and may also be involved in the response to hormones, wounding, and changing water relations. Study of the mechanisms controlling Fru2,6P2 concentrations could reveal insights into how these responses are mediated. However, the detailed action of Fru2,6P2 requires more attention, especially in respiratory metabolism where the background information about the compartmentation of metabolism between the plastid and cytosol is still inadequate, and the potential role of pyrophosphate has to be clarified.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Hedrich R., Raschke K., Stitt M. A role for fructose 2,6-bisphosphate in regulating carbohydrate metabolism in guard cells. Plant Physiol. 1985 Dec;79(4):977–982. doi: 10.1104/pp.79.4.977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hers H. G., François J., van Schaftingen E. Fructose 2,6-bisphosphate versus cyclic AMP in the liver and in lower eukaryotic cells. Curr Top Cell Regul. 1985;27:399–410. doi: 10.1016/b978-0-12-152827-0.50041-4. [DOI] [PubMed] [Google Scholar]
- Huber S. C., Akazawa T. A novel sucrose synthase pathway for sucrose degradation in cultured sycamore cells. Plant Physiol. 1986 Aug;81(4):1008–1013. doi: 10.1104/pp.81.4.1008. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stitt M., Cséke C., Buchanan B. Ethylene-induced increase in fructose-2,6-bisphosphate in plant storage tissues. Plant Physiol. 1986 Jan;80(1):246–248. doi: 10.1104/pp.80.1.246. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wang Y., Leigh R. A., Kaestner K. H., Sze H. Electrogenic h-pumping pyrophosphatase in tonoplast vesicles of oat roots. Plant Physiol. 1986 Jun;81(2):497–502. doi: 10.1104/pp.81.2.497. [DOI] [PMC free article] [PubMed] [Google Scholar]