NDLI: Diverse regulation by sucrose of enzymes involved in storage lipid breakdown in germinating lupin seeds

Content Provider	Springer Nature Link
Author	Borek, Sławomir Kubala, Szymon Kubala, Sylwia
Copyright Year	2013
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.
Starting Page	2147
Ending Page	2156
Page Count	10
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	35
Issue Number	7
e-ISSN	18611664
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-03-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aconitase Acyl-CoA oxidase Catalase Lipase Phosphoenolpyruvate carboxykinase Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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