Tannins and nitrogen dynamics in mangrove leaves at different age and decay stages (Jiulong River Estuary, China)

Yi Ming Lin, Jin Wen Liu, Ping Xiang, Peng Lin, Zhen Hua Ding, Leonel Da Silveira Lobo Sternberg

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Changes in the total phenolics, condensed tannins (CT), protein-precipitable phenolics content and protein precipitation capacity were determined on mangrove leaves representing a range of maturation and senescence in the Jiulong River Estuary, Fujian, China. The results showed that the total phenolics, extractable condensed tannins, total condensed tannins, protein-precipitable phenolics content and protein precipitation capacity in young leaves were higher than those in mature and senescent leaves. With leaf maturation and senescence, total pehnolics decreased. The rapid loss of phenolics observed following senescence and abscission can be ascribed to leaching and degradation. Protein-bound CT and fibre-bound CT tended to increase with leaf maturity, and decreased with senescence. Protein-bound CT and fibre-bound CT increased with leaf decomposition, with CT binding more strongly to protein than to fibre. The increases in nitrogen contents and ash free caloric values, and declines in total phenolics and total condensed tannins of mangrove leaf litter suggests that partially decomposed mangrove detritus is a palatable heterotrophic substrate, and thus may be an important source of matter and energy for the estuarine food web.

Original languageEnglish (US)
Pages (from-to)285-295
Number of pages11
JournalHydrobiologia
Volume583
Issue number1
DOIs
StatePublished - Jun 1 2007

Keywords

  • Aegiceras corniculatum
  • Leaves
  • Protein precipitation capacity
  • Tannins

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography
  • Environmental Science(all)
  • Pollution
  • Water Science and Technology

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    Lin, Y. M., Liu, J. W., Xiang, P., Lin, P., Ding, Z. H., & Da Silveira Lobo Sternberg, L. (2007). Tannins and nitrogen dynamics in mangrove leaves at different age and decay stages (Jiulong River Estuary, China). Hydrobiologia, 583(1), 285-295. https://doi.org/10.1007/s10750-006-0568-3