Photostasis and photosynthetic adaptation to polar life

Photostasis is the light-dependent maintenance of energy balance associated with cellular homeostasis in photoautotrophs. We review evidence that illustrates how photosynthetic adaptation in polar photoautrophs such as aquatic green algae, cyanobacteria, boreal conifers as well as terrestrial angios...

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Bibliographic Details
Published in:Photosynthesis research 2024-08, Vol.161 (1-2), p.51-64
Main Authors: Hüner, Norman P.A., Ivanov, Alexander G., Szyszka-Mroz, Beth, Savitch, Leonid V., Smith, David R., Kata, Victoria
Format: Article
Language:English
Subjects:
Abiotic stress
Adaptation
Adaptation, Physiological
Algae
Angiosperms
Antarctic Regions
Arctic Regions
Biochemistry
Biomedical and Life Sciences
Chlorophyll
Chlorophyta - genetics
Chlorophyta - physiology
Cold
Conifers
Cyanobacteria - genetics
Cyanobacteria - physiology
Ecosystem
Energy balance
Energy dissipation
Genetic diversity
Homeostasis
Life Sciences
Light
Magnoliopsida - genetics
Magnoliopsida - physiology
Metabolism
Metabolites
Organisms
Photosynthesis
Photosynthesis - physiology
Photosynthetic apparatus
Plant Genetics and Genomics
Plant Physiology
Plant Sciences
R&D
Research & development
Review
Structure-function relationships
Temperature
Tracheophyta - genetics
Tracheophyta - physiology
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Summary:Photostasis is the light-dependent maintenance of energy balance associated with cellular homeostasis in photoautotrophs. We review evidence that illustrates how photosynthetic adaptation in polar photoautrophs such as aquatic green algae, cyanobacteria, boreal conifers as well as terrestrial angiosperms exhibit an astonishing plasticity in structure and function of the photosynthetic apparatus. This plasticity contributes to the maintenance of photostasis, which is essential for the long-term survival in the seemingly inhospitable Antarctic and Arctic habitats. However, evidence indicates that polar photoautrophic species exhibit different functional solutions for the maintenance of photostasis. We suggest that this reflects, in part, the genetic diversity symbolized by inherent genetic redundancy characteristic of polar photoautotrophs which enhances their survival in a thermodynamically challenging environment.
ISSN:0166-8595
1573-5079
1573-5079
DOI:10.1007/s11120-024-01104-7