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KMID : 0613820170270070849
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Journal of Life Science
2017 Volume.27 No. 7 p.849 ~ p.856
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Biochemical Properties and Physiological Functions of Plant β-D-fructofuranosidase
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Kim Dong-Giun
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Abstract
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The β-D-fructofuranosidase (EC 3.2.1.26) is an important enzyme from a historical point of view, discovered by French biologist Berthelot in 1860 and was first used to study enzymology. β-D-fructosfuranosidase catalyzes the hydrolysis of sucrose into D-glucose and D-fructose. Four biochemical subgroups of β-D-fructofuranosidase have been investigated in plants. There are vacuolar (soluble acid), cytoplasmic (soluble alkaline), membrane-bound (insoluble alkaline), and cell wall-bound (insoluble acid) β-D-fructofuranosidase by purification. Their biochemical characteristics are distinct. It suggested that those enzymes might be different gene products. The contribution of each of these enzymes to sucrose management in the plant is likely to be correlated with their localization. Common localization in developing cells in tissues from a range of developmental stages and plant parts suggests that all of the isoforms may be closely involved in nutrient transport. The β-D-fructofuranosidases were most commonly found associated with maturing tissues in developing fruits, leaves, and roots. The β-D-fructofuranosidase activity varies in the relationship between growth and expansion through cell division, development of storage organs and tissues, and the relationship of plant defense responses. It is necessary to summarize more researches in order to know the definite physiological function.
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KEYWORD
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β-D-fructosfuranosidase, characterization, plant, sucrose, sugar movement
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