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Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves


, : Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves. Plant Physiology 85(2): 407-412

The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soyabeans and sugarbeet. Invertase from yeast hydrolysed sucrose 4200 times faster than 1'-deoxy-1'-fluorosucrose (FS) while sucrose cleavage by sucrose synthase from developing soyabean leaves proceeded only 3.6 times faster than cleavage of FS. S, used as tracers of sucrose, were transported at identical rates to developing leaves through the phloem.

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Related references

Schmalstig, J.G.; Hitz, W.D., 1987: Contributions of sucrose synthase and invertase to the metabolism of sucrose in developing leaves : estimation by alternate substrate utilization. The relative contributions of invertase and sucrose synthase to initial cleavage of phloem-imported sucrose was calculated for sink leaves of soybean (Glycine max L. Merr cv Wye) and sugar beet (Beta vulgaris L. monohybrid). Invertase from yeast h...

Batta S.K.; Singh R., 1986: Sucrose metabolism in sugar cane grown under varying climatic conditions synthesis and storage of sucrose in relation to the activities of sucrose synthase sucrose phosphate synthase and invertase. The contents of sucrose and hexoses in relation to the activities of sucrose synthase, sucrose-phosphate synthase and soluble invertase in leaf blade and of soluble and wall-bound invertase in stem tissues of sugar cane [Saccharum officinarum] gro...

Gordon, A.J.; Harrison, E.P.; Minchin, F.R., 1994: Sucrose metabolism in soybean nodules Contributions of sucrose synthase and alkaline invertase. Biologia Plantarum (Prague) 36(SUPPL ): S215

Miron, D.; Schaffer, A.A., 1991: Sucrose Phosphate Synthase, Sucrose Synthase, and Invertase Activities in Developing Fruit of Lycopersicon esculentum Mill. and the Sucrose Accumulating Lycopersicon hirsutum Humb. and Bonpl. The green-fruited Lycopersicon hirsutum Humb. and Bonpl. accumulated sucrose to concentrations of about 118 micromoles per gram fresh weight during the final stages of development. In comparison, Lycopersicon esculentum Mill. cultivars contained l...

Miron, D.; Schaffer, A.A., 1991: Sucrose phosphate synthase, sucrose synthase, and invertase activities in developing fruit of Lycopersicon esculentum Mill. and the sucrose accumulating Lycopersicon hirsutum Humb. and Bonpl. The green-fruited Lycopersicon hirsutum Humb. and Bonpl. accumulated sucrose to concentrations of about 118 micromoles per gram fresh weight during the final stages of development. In comparison, Lycopersicon esculentum Mill. cultivars contained l...

Gutierrez Miceli, F.A.; Rodriguez Mendiola, M.A.; Ochoa Alejo, N.; Mendez Salas, R.; Dendooven, L.; Arias Castro, C., 2002: Relationship between sucrose accumulation and activities of sucrose-phosphatase, sucrose synthase, neutral invertase and soluble acid invertase in micropropagated sugarcane plants. The effect of sucrose accumulation in stems on the activities of sucrose-phosphate synthase (SPS), sucrose synthase (SS), neutral invertase [ beta -fructofuranosidase] (NI), and soluble acid invertase [ beta -fructofuranosidase] (SAI) were studied...

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Vassey, T.L., 1989: Light/Dark profiles of sucrose phosphate synthase, sucrose synthase, and Acid invertase in leaves of sugar beets. The activity of sucrose phosphate synthase, sucrose synthase, and acid invertase was monitored in 1- to 2-month-old sugar beet (Beta vulgaris L.) leaves. Sugar beet leaves achieve full laminar length in 13 days. Therefore, leaves were harvested at...

Lorenc Plucinska, G.; Szadel, A.; Plucinski, A., 2000: Sucrose-phosphate synthase, sucrose synthase, and invertase activities in leaves of Populus deltoides during SO2 stress. Plant Physiology & Biochemistry (Paris) 38(Supplement): s128, August

Pavlinova, O.A.; Balakhontsev, E.N.; Prasolova, M.F.; Turkina, M.V., 2002: Sucrose-phosphate synthase, sucrose synthase, and invertase in sugar beet leaves. The diurnal activities of sucrose-phosphate synthase (SPS), sucrose synthase (SS) and invertase [beta-fructofuranosidase] in middle-layer leaves (leaves expanded to 80-90% of their total surface area), and in leaves of various ages, were studied i...