Diverse regulation by sucrose of enzymes involved in storage lipid breakdown in germinating lupin seeds
Authors:
- Sławomir Borek,
- Szymon Kubala,
- Sylwia Kubala
Abstract
The regulatory function of sucrose in the activity of lipid-degrading enzymes was investigated in germinating seeds of yellow lupin (Lupinus luteus L.), white lupin (Lupinus albus L.) and Andean lupin (Lupinus mutabilis Sweet). The study was conducted on isolated embryo axes, excised cotyledons and seedlings cultured in vitro for 96 h on medium with 60 mM sucrose or without the sugar. The activity of lipase (lipolysis), acyl-CoA oxidase and catalase (fatty acid β-oxidation) was enhanced in all studied organs cultured on medium without sucrose. The activity of cytosolic aconitase (glyoxylate cycle) was stimulated by sucrose in seedling axes and isolated embryo axes, whereas in seedling cotyledons and excised cotyledons, it was inhibited. The regulatory function of sucrose in phosphoenolpyruvate carboxykinase (gluconeogenesis) was observed only in isolated embryo axes and the activity was lower in carbohydrate deficiency conditions. The peculiar features of storage lipid breakdown in germinating lupin seeds and its regulation by sucrose are discussed. © 2013 The Author(s).
- Record ID
- UAM0cf54bd194864e3cb4fd398280a7e5d0
- Author
- Journal series
- Acta Physiologiae Plantarum, ISSN 0137-5881
- Issue year
- 2013
- Vol
- 35
- Pages
- 2147-2156
- ASJC Classification
- ; ;
- DOI
- DOI:10.1007/s11738-013-1251-8 Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 25
- Score source
- journalList
- Score
- Publication indicators
- = 5; = 5; = 7; : 2013 = 1.026; : 2013 (2 years) = 1.524 - 2013 (5 years) =1.732
- Citation count
- 8
- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM0cf54bd194864e3cb4fd398280a7e5d0/
- URN
urn:amu-prod:UAM0cf54bd194864e3cb4fd398280a7e5d0
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.