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Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis
Molybdenum cofactor containing sulfite oxidase (SO) enzyme is an important player in protecting plants against exogenous toxic sulfite. It was also demonstrated that SO activity is essential to cope with rising dark-induced endogenous sulfite levels and maintain optimal carbon and sulfur metabolism...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264797/ https://www.ncbi.nlm.nih.gov/pubmed/34249061 http://dx.doi.org/10.3389/fpls.2021.690830 |
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author | Oshanova, Dinara Kurmanbayeva, Assylay Bekturova, Aizat Soltabayeva, Aigerim Nurbekova, Zhadyrassyn Standing, Dominic Dubey, Arvind Kumar Sagi, Moshe |
author_facet | Oshanova, Dinara Kurmanbayeva, Assylay Bekturova, Aizat Soltabayeva, Aigerim Nurbekova, Zhadyrassyn Standing, Dominic Dubey, Arvind Kumar Sagi, Moshe |
author_sort | Oshanova, Dinara |
collection | PubMed |
description | Molybdenum cofactor containing sulfite oxidase (SO) enzyme is an important player in protecting plants against exogenous toxic sulfite. It was also demonstrated that SO activity is essential to cope with rising dark-induced endogenous sulfite levels and maintain optimal carbon and sulfur metabolism in tomato plants exposed to extended dark stress. The response of SO and sulfite reductase to direct exposure of low and high levels of sulfate and carbon was rarely shown. By employing Arabidopsis wild-type, sulfite reductase, and SO-modulated plants supplied with excess or limited carbon or sulfur supply, the current study demonstrates the important role of SO in carbon and sulfur metabolism. Application of low and excess sucrose, or sulfate levels, led to lower biomass accumulation rates, followed by enhanced sulfite accumulation in SO impaired mutant compared with wild-type. SO-impairment resulted in the channeling of sulfite to the sulfate reduction pathway, resulting in an overflow of organic S accumulation. In addition, sulfite enhancement was followed by oxidative stress contributing as well to the lower biomass accumulation in SO-modulated plants. These results indicate that the role of SO is not limited to protection against elevated sulfite toxicity but to maintaining optimal carbon and sulfur metabolism in Arabidopsis plants. |
format | Online Article Text |
id | pubmed-8264797 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-82647972021-07-09 Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis Oshanova, Dinara Kurmanbayeva, Assylay Bekturova, Aizat Soltabayeva, Aigerim Nurbekova, Zhadyrassyn Standing, Dominic Dubey, Arvind Kumar Sagi, Moshe Front Plant Sci Plant Science Molybdenum cofactor containing sulfite oxidase (SO) enzyme is an important player in protecting plants against exogenous toxic sulfite. It was also demonstrated that SO activity is essential to cope with rising dark-induced endogenous sulfite levels and maintain optimal carbon and sulfur metabolism in tomato plants exposed to extended dark stress. The response of SO and sulfite reductase to direct exposure of low and high levels of sulfate and carbon was rarely shown. By employing Arabidopsis wild-type, sulfite reductase, and SO-modulated plants supplied with excess or limited carbon or sulfur supply, the current study demonstrates the important role of SO in carbon and sulfur metabolism. Application of low and excess sucrose, or sulfate levels, led to lower biomass accumulation rates, followed by enhanced sulfite accumulation in SO impaired mutant compared with wild-type. SO-impairment resulted in the channeling of sulfite to the sulfate reduction pathway, resulting in an overflow of organic S accumulation. In addition, sulfite enhancement was followed by oxidative stress contributing as well to the lower biomass accumulation in SO-modulated plants. These results indicate that the role of SO is not limited to protection against elevated sulfite toxicity but to maintaining optimal carbon and sulfur metabolism in Arabidopsis plants. Frontiers Media S.A. 2021-06-24 /pmc/articles/PMC8264797/ /pubmed/34249061 http://dx.doi.org/10.3389/fpls.2021.690830 Text en Copyright © 2021 Oshanova, Kurmanbayeva, Bekturova, Soltabayeva, Nurbekova, Standing, Dubey and Sagi. 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 Oshanova, Dinara Kurmanbayeva, Assylay Bekturova, Aizat Soltabayeva, Aigerim Nurbekova, Zhadyrassyn Standing, Dominic Dubey, Arvind Kumar Sagi, Moshe Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title | Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title_full | Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title_fullStr | Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title_full_unstemmed | Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title_short | Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis |
title_sort | level of sulfite oxidase activity affects sulfur and carbon metabolism in arabidopsis |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8264797/ https://www.ncbi.nlm.nih.gov/pubmed/34249061 http://dx.doi.org/10.3389/fpls.2021.690830 |
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