Cited by 320Marine and coastal ecosystemsPhotosynthetic Processes and MechanismsAquatic Ecosystems and Phytoplankton Dynamics

A dynamic model of photoadaptation in phytoplankton

Geider, Richard J., MacIntyre, Hugh L., Kana, Todd M.·1996·Limnology and Oceanography

Abstract

We present a new dynamic model that uses a small number of prescribed parameters to predict the chlorophyll a:carbon ratio and growth rate of phytoplankton in both constant and varying irradiance. The model provides a self‐contained description of energy and mass fluxes and regulation of partitioning of photosynthate during phytoplankton adaptation to irradiance. The kinetics and steady‐state outcomes of photoadaptation are described in terms of changes in the rates of synthesis of three intracellular carbon pools. These pools account for the distribution of cell material between light‐harvesting components, the biosynthetic apparatus, and energy storage compounds. Regulation of the flow of recent photosynthate to these pools is controlled by the ratio of realized to potential photosynthetic electron flow at a given instant. The responses of growth rate and Chl a:C to static and dynamic irradiance regimes can be adequately described by specifying four parameters: the initial slope of the photosynthesis‐irradiance curve, the maximum growth rate, the maximum Chl a:C observed under light limitation, and the maintenance metabolic rate. The model predictions compared favorably with observations of the diatoms Thalassiosira pseudonana and Phaedactylum tricornutum.

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Registry

Crossref · 10.4319/lo.1996.41.1.0001

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36 of 36 references verified0 citation errors · 0 not checkable

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  • Temporal changes of the light distribution occur due to the evolution of cell density and the adaptation of the pigmentation and cell size, which determine the radiation characteristics of the cell culture.

    “Temporal changes of the light distribution occur due to the evolution of cell density and the adaptation of the pigmentation and cell size [86,87], which determine the radiation characteristics of the cell culture [78,88-90].”

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Authors
Geider, R. J., MacIntyre, H. L., & Kana, T. M.
Affiliations
University of Delaware (US)
Venue
Limnology and Oceanography
Publisher
Wiley
Published
1996-01
Volume
41
Issue
1
Pages
1-15
ISSN
  • 0024-3590 (ISSN-L)
  • 1939-5590
OpenAlex
W2161217444
Cited by
320
References
36
Citations by year
2026: 7 · 2025: 8 · 2024: 6 · 2023: 10 · 2022: 17 · 2021: 5 · 2020: 11 · 2019: 13 · 2018: 11 · 2017: 8 · 2016: 10 · 2015: 17 · 2014: 18 · 2013: 18 · 2012: 10
FWCI
8.32
Type
journal article
Language
en
Open access
closed
Locations
Limnology and Oceanography (publishedVersion)
Funders
National Science Foundation
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
Keywords
photoadaptation, phytoplankton, phytoplankton growth rate, irradiance, photosynthesis-irradiance curves, photosynthate partitioning, electron transport, Thalassiosira pseudonana, diatoms, dynamic model

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