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  Multi-omics reveals mechanisms of total resistance to extrememillumination of a desert alga

Treves, H., Siemiatkowska, B., Luzarowska, U., Murik, O., Fernandez-Pozo, N., Moraes, T. A., et al. (2020). Multi-omics reveals mechanisms of total resistance to extrememillumination of a desert alga. Nature Plants, 6, 1031-1043. doi:10.1038/s41477-020-0729-9.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-DB51-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-E5BE-2
Genre: Journal Article

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 Creators:
Treves, H.1, Author              
Siemiatkowska, B.2, Author              
Luzarowska, U.3, Author              
Murik, Omer4, Author
Fernandez-Pozo, Noe4, Author
Moraes, T. A.1, Author              
Erban, A.5, Author              
Armbruster, U.6, Author              
Brotman, Y.3, Author              
Kopka, J.5, Author              
Rensing, Stefan Andreas4, Author
Szymanski, Jedrzej4, Author
Stitt, M.1, Author              
Affiliations:
1System Regulation, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753327              
2Plant Proteomics, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1950285              
3Genetics of Metabolic Traits, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_2497694              
4external, ou_persistent22              
5Applied Metabolome Analysis, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753338              
6Regulation of Photosynthesis, Department Bock, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_2205653              

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 Abstract: The unparalleled performance of Chlorella ohadii under irradiances of twice full sunlight underlines the gaps in our understanding of how the photosynthetic machinery operates, and what sets its upper functional limit. Rather than succumbing to photodamage under extreme irradiance, unique features of photosystem II function allow C. ohadii to maintain high rates of photosynthesis and growth, accompanied by major changes in composition and cellular structure. This remarkable resilience allowed us to investigate the systems response of photosynthesis and growth to extreme illumination in a metabolically active cell. Using redox proteomics, transcriptomics, metabolomics and lipidomics, we explored the cellular mechanisms that promote dissipation of excess redox energy, protein S-glutathionylation, inorganic carbon concentration, lipid and starch accumulation, and thylakoid stacking. C. ohadii possesses a readily available capacity to utilize a sudden excess of reducing power and carbon for growth and reserve formation, and post-translational redox regulation plays a pivotal role in this rapid response. Frequently the response in C. ohadii deviated from that of model species, reflecting its life history in desert sand crusts. Comparative global and case-specific analyses provided insights into the potential evolutionary role of effective reductant utilization in this extreme resistance of C. ohadii to extreme irradiation.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: URI: https://doi.org/10.1038/s41477-020-0729-9
Other: Treves2020
DOI: 10.1038/s41477-020-0729-9
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Title: Nature Plants
Source Genre: Journal
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Publ. Info: Nature Publishing Group
Pages: - Volume / Issue: 6 Sequence Number: - Start / End Page: 1031 - 1043 Identifier: ISSN: 2055-0278
CoNE: https://pure.mpg.de/cone/journals/resource/2055-0278