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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...

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Autores principales: Oshanova, Dinara, Kurmanbayeva, Assylay, Bekturova, Aizat, Soltabayeva, Aigerim, Nurbekova, Zhadyrassyn, Standing, Dominic, Dubey, Arvind Kumar, Sagi, Moshe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
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.
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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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