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The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions
Algae are photosynthetic eukaryotic (micro-)organisms, lacking roots, leaves, and other organs that are typical for land plants. They live in freshwater, marine, or terrestrial habitats. Together with the cyanobacteria they contribute to about half of global carbon fixation. As primary producers, th...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591175/ https://www.ncbi.nlm.nih.gov/pubmed/34790217 http://dx.doi.org/10.3389/fpls.2021.766509 |
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author | Petersen, Jan Rredhi, Anxhela Szyttenholm, Julie Oldemeyer, Sabine Kottke, Tilman Mittag, Maria |
author_facet | Petersen, Jan Rredhi, Anxhela Szyttenholm, Julie Oldemeyer, Sabine Kottke, Tilman Mittag, Maria |
author_sort | Petersen, Jan |
collection | PubMed |
description | Algae are photosynthetic eukaryotic (micro-)organisms, lacking roots, leaves, and other organs that are typical for land plants. They live in freshwater, marine, or terrestrial habitats. Together with the cyanobacteria they contribute to about half of global carbon fixation. As primary producers, they are at the basis of many food webs and they are involved in biogeochemical processes. Algae are evolutionarily distinct and are derived either by primary (e.g., green and red algae) or secondary endosymbiosis (e.g., diatoms, dinoflagellates, and brown algae). Light is a key abiotic factor needed to maintain the fitness of algae as it delivers energy for photosynthesis, regulates algal cell- and life cycles, and entrains their biological clocks. However, excess light can also be harmful, especially in the ultraviolet range. Among the variety of receptors perceiving light information, the cryptochromes originally evolved as UV-A and blue-light receptors and have been found in all studied algal genomes so far. Yet, the classification, biophysical properties, wavelength range of absorbance, and biological functions of cryptochromes are remarkably diverse among algal species, especially when compared to cryptochromes from land plants or animals. |
format | Online Article Text |
id | pubmed-8591175 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85911752021-11-16 The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions Petersen, Jan Rredhi, Anxhela Szyttenholm, Julie Oldemeyer, Sabine Kottke, Tilman Mittag, Maria Front Plant Sci Plant Science Algae are photosynthetic eukaryotic (micro-)organisms, lacking roots, leaves, and other organs that are typical for land plants. They live in freshwater, marine, or terrestrial habitats. Together with the cyanobacteria they contribute to about half of global carbon fixation. As primary producers, they are at the basis of many food webs and they are involved in biogeochemical processes. Algae are evolutionarily distinct and are derived either by primary (e.g., green and red algae) or secondary endosymbiosis (e.g., diatoms, dinoflagellates, and brown algae). Light is a key abiotic factor needed to maintain the fitness of algae as it delivers energy for photosynthesis, regulates algal cell- and life cycles, and entrains their biological clocks. However, excess light can also be harmful, especially in the ultraviolet range. Among the variety of receptors perceiving light information, the cryptochromes originally evolved as UV-A and blue-light receptors and have been found in all studied algal genomes so far. Yet, the classification, biophysical properties, wavelength range of absorbance, and biological functions of cryptochromes are remarkably diverse among algal species, especially when compared to cryptochromes from land plants or animals. Frontiers Media S.A. 2021-11-01 /pmc/articles/PMC8591175/ /pubmed/34790217 http://dx.doi.org/10.3389/fpls.2021.766509 Text en Copyright © 2021 Petersen, Rredhi, Szyttenholm, Oldemeyer, Kottke and Mittag. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Petersen, Jan Rredhi, Anxhela Szyttenholm, Julie Oldemeyer, Sabine Kottke, Tilman Mittag, Maria The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title | The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title_full | The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title_fullStr | The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title_full_unstemmed | The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title_short | The World of Algae Reveals a Broad Variety of Cryptochrome Properties and Functions |
title_sort | world of algae reveals a broad variety of cryptochrome properties and functions |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591175/ https://www.ncbi.nlm.nih.gov/pubmed/34790217 http://dx.doi.org/10.3389/fpls.2021.766509 |
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