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Naringin Levels in Citrus Tissues II. Quantitative Distribution of Naringin in Citrus paradisi MacFad
Plant Physiology (1985)
  • Pablo S. Jourdan, University of South Florida
  • Cecilia McIntosh, University of South Florida
  • Richard L. Mansell, University of South Florida
Abstract
The quantitative distribution of the flavanone-7-neohesperidoside, naringin, in seeds, seedlings, young plants, branches, flowers, and fruit of Citrus paradisi Macfad., cv `Duncan' was analyzed by radioimmunoassay. High levels of naringin were associated with very young tissue and lower levels were found in older tissues. Seed coats of ungerminated seeds and young shoots had high naringin concentrations whereas cotyledons and roots had very low concentrations. Light-grown seedlings contained nearly twice as much naringin as etiolated seedlings and, in young plants and branches, the naringin content was highest in developing leaves and stem tissue. In flowers, the ovary had the highest levels of naringin, accounting for nearly 11% of the fresh weight. There was a net increase in the total naringin content of fruits during growth. However, due to the large increase in fruit size, there was a concomitant decrease in the naringin concentration as the fruit matured.
Keywords
  • citrus paradisi,
  • citrus tissues,
  • flavanon-7-neohesperidoside,
  • naringin levels,
  • quantitative distribution
Publication Date
April 1, 1985
DOI
10.1104/pp.77.4.903
Citation Information
Pablo S. Jourdan, Cecilia McIntosh and Richard L. Mansell. "Naringin Levels in Citrus Tissues II. Quantitative Distribution of Naringin in Citrus paradisi MacFad" Plant Physiology Vol. 77 Iss. 4 (1985) p. 903 - 908 ISSN: Plant Physiology
Available at: http://works.bepress.com/cecilia-mcintosh/28/