Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO)

A long-lived protein in the deep ocean

Mónica V. Orellana, Dennis A Hansell

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We demonstrate that the distribution of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) in the deep North Pacific is a unique tracer for the accumulation of biochemically identifiable organic residue of the export flux. RuBisCO is found both dissolved and assembled in microgels in a dynamic gel-to-dissolved-to-gel continuum that may protect RuBisCO from degradation in the water column. High concentrations are located below biologically productive equatorial and subarctic systems, and low concentrations are associated with the subtropical gyre. RuBisCO tracks the advective transport of export products along deep circulation pathways of the ocean interior, serving as a quantifiable biochemical tracer of modern organic carbon exported to and resident in the deep ocean.

Original languageEnglish (US)
Pages (from-to)826-834
Number of pages9
JournalLimnology and Oceanography
Volume57
Issue number3
DOIs
StatePublished - Mar 2012

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ribulose 1,5-diphosphate
oxygenases
gel
oceans
tracer
protein
ocean
gyre
tracer techniques
advection
proteins
water column
organic carbon
gels
degradation
carbon
water
distribution
product

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science

Cite this

Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) : A long-lived protein in the deep ocean. / Orellana, Mónica V.; Hansell, Dennis A.

In: Limnology and Oceanography, Vol. 57, No. 3, 03.2012, p. 826-834.

Research output: Contribution to journalArticle

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