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Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression
Light is essential for photosynthesis but light levels that exceed an organism’s assimilation capacity can cause serious damage or even cell death. Plants and microalgae have developed photoprotective mechanisms collectively referred to as non-photochemical quenching to minimize such potential damag...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8775618/ https://www.ncbi.nlm.nih.gov/pubmed/35054872 http://dx.doi.org/10.3390/ijms23020687 |
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author | Lu, Dandan Zhang, Yi Zhang, Aihong Lu, Congming |
author_facet | Lu, Dandan Zhang, Yi Zhang, Aihong Lu, Congming |
author_sort | Lu, Dandan |
collection | PubMed |
description | Light is essential for photosynthesis but light levels that exceed an organism’s assimilation capacity can cause serious damage or even cell death. Plants and microalgae have developed photoprotective mechanisms collectively referred to as non-photochemical quenching to minimize such potential damage. One such mechanism is energy-dependent quenching (qE), which dissipates excess light energy as heat. Over the last 30 years, much has been learned about the molecular mechanism of qE in green algae and plants. However, the steps between light perception and qE represented a gap in our knowledge until the recent identification of light-signaling pathways that function in these processes in the green alga Chlamydomonas reinhardtii. In this review, we summarize the high light and UV-mediated signaling pathways for qE in Chlamydomonas. We discuss key questions remaining about the pathway from light perception to photoprotective gene expression in Chlamydomonas. We detail possible differences between green algae and plants in light-signaling mechanisms for qE and emphasize the importance of research on light-signaling mechanisms for qE in plants. |
format | Online Article Text |
id | pubmed-8775618 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87756182022-01-21 Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression Lu, Dandan Zhang, Yi Zhang, Aihong Lu, Congming Int J Mol Sci Review Light is essential for photosynthesis but light levels that exceed an organism’s assimilation capacity can cause serious damage or even cell death. Plants and microalgae have developed photoprotective mechanisms collectively referred to as non-photochemical quenching to minimize such potential damage. One such mechanism is energy-dependent quenching (qE), which dissipates excess light energy as heat. Over the last 30 years, much has been learned about the molecular mechanism of qE in green algae and plants. However, the steps between light perception and qE represented a gap in our knowledge until the recent identification of light-signaling pathways that function in these processes in the green alga Chlamydomonas reinhardtii. In this review, we summarize the high light and UV-mediated signaling pathways for qE in Chlamydomonas. We discuss key questions remaining about the pathway from light perception to photoprotective gene expression in Chlamydomonas. We detail possible differences between green algae and plants in light-signaling mechanisms for qE and emphasize the importance of research on light-signaling mechanisms for qE in plants. MDPI 2022-01-08 /pmc/articles/PMC8775618/ /pubmed/35054872 http://dx.doi.org/10.3390/ijms23020687 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Lu, Dandan Zhang, Yi Zhang, Aihong Lu, Congming Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title | Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title_full | Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title_fullStr | Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title_full_unstemmed | Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title_short | Non-photochemical Quenching: From Light Perception to Photoprotective Gene Expression |
title_sort | non-photochemical quenching: from light perception to photoprotective gene expression |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8775618/ https://www.ncbi.nlm.nih.gov/pubmed/35054872 http://dx.doi.org/10.3390/ijms23020687 |
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