Cited by 399Algal biology and biofuel productionPlant biochemistry and biosynthesisPhotosynthetic Processes and Mechanisms

Secondary ketocarotenoid astaxanthin biosynthesis in algae: a multifunctional response to stress

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Lemoine, Yves, Schoefs, Benoît·2010·Photosynthesis Research

Abstract

Under stressful environments, many green algae such as Haematococcus pluvialis accumulate secondary ketocarotenoids such as canthaxanthin and astaxanthin. The carotenogenesis, responsible for natural phenomena such as red snows, generally accompanies larger metabolic changes as well as morphological modifications, i.e., the conversion of the green flagellated macrozoids into large red cysts. Astaxanthin accumulation constitutes a convenient way to store energy and carbon, which will be used for further synthesis under less stressful conditions. Besides this, the presence of high amount of astaxanthin enhances the cell resistance to oxidative stress generated by unfavorable environmental conditions including excess light, UV-B irradiation, and nutrition stress and, therefore, confers a higher survival capacity to the cells. This better resistance results from the quenching of oxygen atoms for the synthesis itself as well as from the antioxidant properties of the astaxanthin molecules. Therefore, astaxanthin synthesis corresponds to a multifunctional response to stress. In this contribution, the various biochemical, genetic, and molecular data related to the biosynthesis of ketocarotenoids by Haematococcus pluvialis and other taxa are reviewed and compared. A tentative regulatory model of the biochemical network driving astaxanthin production is proposed.

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Crossref · 10.1007/s11120-010-9583-3

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Authors
Lemoine, Y., & Schoefs, B.
Affiliations
Centre National de la Recherche Scientifique (FR)
Venue
Photosynthesis Research
Published
2010-08-13
Volume
106
Issue
1-2
Pages
155-177
ISSN
  • 0166-8595 (ISSN-L)
  • 1573-5079
OpenAlex
W1991026527
Cited by
384
References
215
Citations by year
2026: 15 · 2025: 26 · 2024: 21 · 2023: 25 · 2022: 28 · 2021: 50 · 2020: 42 · 2019: 31 · 2018: 25 · 2017: 17 · 2016: 20 · 2015: 20 · 2014: 26 · 2013: 21 · 2012: 9
FWCI
0.42
Type
journal article
Language
en
Open access
Locations
  • Photosynthesis Research (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • LillOA (Université de Lille (University Of Lille)) (submittedVersion, other-oa)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
Keywords
astaxanthin biosynthesis, ketocarotenoids, Haematococcus pluvialis, carotenogenesis, oxidative stress, antioxidant activity, red snow, cyst formation, UV-B stress, light stress, metabolic regulation, green algae
MeSH terms
Chlorophyta, Carotenoids, Stress, Physiological, Plastids, Xanthophylls, Biosynthetic Pathways, Eukaryota

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