EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Sucrose phosphate synthase, sucrose synthase, and invertase activities in developing fruit of Lycopersicon esculentum Mill. and the sucrose accumulating Lycopersicon hirsutum Humb. and Bonpl



Sucrose phosphate synthase, sucrose synthase, and invertase activities in developing fruit of Lycopersicon esculentum Mill. and the sucrose accumulating Lycopersicon hirsutum Humb. and Bonpl



Plant Physiology 95(2): 623-627



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 less than 15 micromoles per gram fresh weight of sucrose at the ripe stage. Glucose and fructose levels remained relatively constant throughout development in L. hirsutum at 22 to 50 micromoles per gram fresh weight each. Starch content was low even at early stages of development, and declined further with development. Soluble acid invertase (EC 3.2. 1.26) activity declined concomitant with the rise in sucrose content. Acid invertase activity, which was solubilized in 1 molar NaCl (presumably cell-wall bound), remained constant throughout development (about 3 micromoles of reducing sugars (per gram fresh weight) per hour. Sucrose phosphate synthase (EC 2.4.1.14) activity was present at about 5 micromoles of sucrose (per gram fresh weight) per hour even at early stages of development, and increased sharply to about 40 micromoles of sucrose (per gram fresh weight) per hour at the final stages of development studied, parallel to the rise in sucrose content. In comparison, sucrose phosphate synthase activity in L. esculentum remained low throughout development. The possible roles of the sucrose metabolizing enzymes in determining sucrose accumulation are discussed.

Accession: 002235541

Download citation: RISBibTeXText

PMID: 16668028

DOI: 10.1104/pp.95.2.623

Download PDF Full Text: Sucrose phosphate synthase, sucrose synthase, and invertase activities in developing fruit of Lycopersicon esculentum Mill. and the sucrose accumulating Lycopersicon hirsutum Humb. and Bonpl



Related references

Sucrose uptake, invertase localization and gene expression in developing fruit of Lycopersicon esculentum and the sucrose-accumulating Lycopersicon hirsutum. Physiologia Plantarum 115(1): 35-47, 2002

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. Phytochemistry (Oxford) 25(11): 2431-2438, 1986

Sucrose metabolism and purification and characterization of sucrose synthase from Lycopersicon esculentum var cerasiforme fruit. Hortscience 32(3): 491, 1997

Levels and role of sucrose synthase, sucrose-phosphate synthase, and acid invertase in sucrose accumulation in fruit of Asian pear. Journal of the American Society for Horticultural Science 117(2): 274-278, 1992

Changes in carbohydrate content and the activities of acid invertase, sucrose synthase and sucrose phosphate synthase in vegetable soybean during fruit development. Asian Journal of Plant Sciences 4(6): 684-690, 2005

Carbohydrate content and the activities of sucrose synthase, sucrose phosphate synthase and acid invertase in different tomato cultivars during fruit development. Scientia Horticulturae (Amsterdam) 65(2-3): 125-136, 1996

Sucrose accumulation and changes of sucrose synthase, sucrose phosphate synthase and invertase activities during development of muskmelon fruits. Journal of the Korean Society for Horticultural Science 38(1): 1-5, 1997

Sucrose accumulation and changes of sucrose synthase, sucrose phosphate synthase and invertase activities during the development of muskmelon fruits. Journal of the Korean Society for Horticultural Science 38(1): 1-5, 1997

Expression patterns, activities and carbohydrate-metabolizing regulation of sucrose phosphate synthase, sucrose synthase and neutral invertase in pineapple fruit during development and ripening. International Journal of Molecular Sciences 13(8): 9460-9477, 2012

Crossability of the cultivated tomato lycopersicon esculentum mill. with lycopersicon esculentum f hirsutum humb. et bonpl. as a function of the level of wild species self incompatibility. Biologicheskii Zhurnal Armenii 41(6): 480-487, 1988

Characterization of sucrose phosphate synthase, sucrose synthase and invertase in roots of two nearly isogenic carrot lines that differ in their capacity to accumulate sucrose. Journal of Plant Physiology 149(3-4): 301-306, 1996

Sucrose metabolism in domesticated cherry tomato, Lycopersicon esculentum var. cerasiforme Alef., and purification of sucrose synthase. Journal of Horticultural Science and Biotechnology 76(1): 40-47, 2001

A genetic study of flesh color of fruit in hybrids of Lycopersicon esculentum Mill. and L. hirsutum Humb. and Bonpl. Genetics. 31: 222-23, 1946

Interactions between the timing of the application of hypoxia and rate of sugar accumulation and activities of invertase, sucrose synthase, and sucrose phosphate synthase. Hortscience 31(4): 638, 1996

Changes in the amount of sugars and in the activities of acid invertase, sucrose synthase and sucrose phosphate synthase in asparagus storage roots on sprouting. Acta Horticulturae (589): 249-255, 2002