Isotopic fractionation during cellulose synthesis in two mangrove species: Salinity effects

Naomi Ish-Shalom-Gordon, Guanghui Lin, Leonel Sternberg

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Carbon, non-exchangeable hydrogen, and oxygen isotope ratios of cellulose of Avicennia germinans and Rhizophora mangle plants hydroponically grown under different salinities (0, 18, 45% sea water, but with irrigation waters having the same isotopic ratios) were measured to determine the possibility of using isotopic ratios of plant tissues as biological recorders of sea level rise. There was a large variability in the δD values of leaf nitrated cellulose between different treatments and even within a single treatment for both A. germinans and R. mangle. Thus, δD values of non-exchangeable hydrogens of cellulose cannot be used as a historical tracer for utilization of ocean water or freshwater by mangroves. In contrast, δ18O values of cellulose were not significantly different between different salinity treatments for both mangroves, indicating that δ18O of cellulose can be used as a sea water tracer. δ13C values of cellulose did not vary directly with salinity as has been observed with other plants. δ13C values of cellulose from A. germinans were the lowest for plants growing at 18% sea water, with cellulose from plants growing in 0 and 45% sea water having significantly higher δ13C values. δ13C values of cellulose from R. mangle were the highest for plants grown in 45% sea water, with plants grown in 0 and 18% sea water having equally lower δ13C values.

Original languageEnglish
Pages (from-to)2623-2626
Number of pages4
JournalPhytochemistry
Volume31
Issue number8
DOIs
StatePublished - Jan 1 1992

Fingerprint

isotope fractionation
Salinity
Fractionation
Cellulose
cellulose
Seawater
salinity
seawater
synthesis
Rhizophoraceae
Water
Avicennia germinans
Rhizophora mangle
Oceans and Seas
hydrogen
tracer techniques
Hydrogen
Avicennia
Oxygen Isotopes
Sea level

Keywords

  • Avicennia germinans
  • biological recorder
  • cellulose.
  • Mangroves
  • Rhizophora mangle
  • salinity
  • sea level rise
  • stable isotope ratio

ASJC Scopus subject areas

  • Plant Science
  • Biochemistry
  • Molecular Biology
  • Organic Chemistry
  • Drug Discovery

Cite this

Isotopic fractionation during cellulose synthesis in two mangrove species : Salinity effects. / Ish-Shalom-Gordon, Naomi; Lin, Guanghui; Sternberg, Leonel.

In: Phytochemistry, Vol. 31, No. 8, 01.01.1992, p. 2623-2626.

Research output: Contribution to journalArticle

Ish-Shalom-Gordon, Naomi ; Lin, Guanghui ; Sternberg, Leonel. / Isotopic fractionation during cellulose synthesis in two mangrove species : Salinity effects. In: Phytochemistry. 1992 ; Vol. 31, No. 8. pp. 2623-2626.
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