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Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo

Plants need light energy to drive photosynthesis, but excess energy leads to the production of harmful reactive oxygen species (ROS), resulting in oxidative inactivation of target enzymes, including the photosynthetic CO(2)-fixing enzyme, ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco). It...

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Autores principales: Tominaga, Jun, Takahashi, Shunichi, Sakamoto, Atsushi, Shimada, Hiroshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7194379/
https://www.ncbi.nlm.nih.gov/pubmed/32233721
http://dx.doi.org/10.1080/15592324.2020.1740873
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author Tominaga, Jun
Takahashi, Shunichi
Sakamoto, Atsushi
Shimada, Hiroshi
author_facet Tominaga, Jun
Takahashi, Shunichi
Sakamoto, Atsushi
Shimada, Hiroshi
author_sort Tominaga, Jun
collection PubMed
description Plants need light energy to drive photosynthesis, but excess energy leads to the production of harmful reactive oxygen species (ROS), resulting in oxidative inactivation of target enzymes, including the photosynthetic CO(2)-fixing enzyme, ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco). It has been demonstrated in vitro that oxidatively inactivated Rubisco can be reactivated by the addition of reducing agents. Busch et al. (in The Plant Journal, doi: 10.1111/tpj.14617, 2020) recently demonstrated that bundle-sheath defective 2 (BSD2), a stroma-targeted protein formerly known as a late-assembly chaperone for Rubisco biosynthesis, can be responsible for such reactivation in vivo. Here, we propose a working model of the novel redox regulation in Rubisco activity. Redox of Rubisco may be a new target for improving photosynthesis.
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spelling pubmed-71943792020-05-05 Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo Tominaga, Jun Takahashi, Shunichi Sakamoto, Atsushi Shimada, Hiroshi Plant Signal Behav Short Communication Plants need light energy to drive photosynthesis, but excess energy leads to the production of harmful reactive oxygen species (ROS), resulting in oxidative inactivation of target enzymes, including the photosynthetic CO(2)-fixing enzyme, ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco). It has been demonstrated in vitro that oxidatively inactivated Rubisco can be reactivated by the addition of reducing agents. Busch et al. (in The Plant Journal, doi: 10.1111/tpj.14617, 2020) recently demonstrated that bundle-sheath defective 2 (BSD2), a stroma-targeted protein formerly known as a late-assembly chaperone for Rubisco biosynthesis, can be responsible for such reactivation in vivo. Here, we propose a working model of the novel redox regulation in Rubisco activity. Redox of Rubisco may be a new target for improving photosynthesis. Taylor & Francis 2020-03-31 /pmc/articles/PMC7194379/ /pubmed/32233721 http://dx.doi.org/10.1080/15592324.2020.1740873 Text en © 2020 The Author(s). Published with license by Taylor & Francis Group, LLC. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.
spellingShingle Short Communication
Tominaga, Jun
Takahashi, Shunichi
Sakamoto, Atsushi
Shimada, Hiroshi
Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title_full Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title_fullStr Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title_full_unstemmed Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title_short Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo
title_sort arabidopsis bsd2 reveals a novel redox regulation of rubisco physiology in vivo
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7194379/
https://www.ncbi.nlm.nih.gov/pubmed/32233721
http://dx.doi.org/10.1080/15592324.2020.1740873
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