Sucrose synthase and invertase in isolated vascular bundles

Patricia T. Tomlinson, Edwin R. Duke, Kurt D Nolte, Karen E. Koch

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Vascular bundles were isolated from grapefruit (Citrus paradisi Macf.) during periods of rapid sucrose translocation into fruit. Invertase and sucrose synthase activities were assayed in these strands and compared with immediately adjacent tissues (inner most peel and segment epidermis) and phloem-free juice sacs during four growing seasons. Although sucrose synthase was present in sink cells, the significantly greater activity in vascular strands (per unit fresh weight and protein) indicated that the role of this enzyme in translocation may include a vascular function in addition to its proposed involvement in metabolism of importing cells.

Original languageEnglish (US)
Pages (from-to)1249-1252
Number of pages4
JournalPlant Physiology
Volume97
Issue number3
StatePublished - 1991
Externally publishedYes

Fingerprint

beta-Fructofuranosidase
sucrose synthase
vascular bundles
beta-fructofuranosidase
blood vessels
Citrus paradisi
Blood Vessels
grapefruits
epidermis (plant)
phloem
Phloem
juices
growing season
sucrose
cells
Epidermis
metabolism
fruits
Sucrose
Fruit

ASJC Scopus subject areas

  • Plant Science

Cite this

Tomlinson, P. T., Duke, E. R., Nolte, K. D., & Koch, K. E. (1991). Sucrose synthase and invertase in isolated vascular bundles. Plant Physiology, 97(3), 1249-1252.

Sucrose synthase and invertase in isolated vascular bundles. / Tomlinson, Patricia T.; Duke, Edwin R.; Nolte, Kurt D; Koch, Karen E.

In: Plant Physiology, Vol. 97, No. 3, 1991, p. 1249-1252.

Research output: Contribution to journalArticle

Tomlinson, PT, Duke, ER, Nolte, KD & Koch, KE 1991, 'Sucrose synthase and invertase in isolated vascular bundles', Plant Physiology, vol. 97, no. 3, pp. 1249-1252.
Tomlinson PT, Duke ER, Nolte KD, Koch KE. Sucrose synthase and invertase in isolated vascular bundles. Plant Physiology. 1991;97(3):1249-1252.
Tomlinson, Patricia T. ; Duke, Edwin R. ; Nolte, Kurt D ; Koch, Karen E. / Sucrose synthase and invertase in isolated vascular bundles. In: Plant Physiology. 1991 ; Vol. 97, No. 3. pp. 1249-1252.
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