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Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems
Salinity toxicity and the post-stress restorative process were examined to identify the salt tolerance mechanism in tomato, with a focus on the antioxidant defense and glyoxalase systems. Hydroponically grown 15 day-old tomato plants (Solanum lycopersicum L. cv. Pusa Ruby) were treated with 150 and...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6770412/ https://www.ncbi.nlm.nih.gov/pubmed/31480540 http://dx.doi.org/10.3390/antiox8090350 |
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author | Parvin, Khursheda Hasanuzzaman, Mirza Bhuyan, M. H. M. Borhannuddin Nahar, Kamrun Mohsin, Sayed Mohammad Fujita, Masayuki |
author_facet | Parvin, Khursheda Hasanuzzaman, Mirza Bhuyan, M. H. M. Borhannuddin Nahar, Kamrun Mohsin, Sayed Mohammad Fujita, Masayuki |
author_sort | Parvin, Khursheda |
collection | PubMed |
description | Salinity toxicity and the post-stress restorative process were examined to identify the salt tolerance mechanism in tomato, with a focus on the antioxidant defense and glyoxalase systems. Hydroponically grown 15 day-old tomato plants (Solanum lycopersicum L. cv. Pusa Ruby) were treated with 150 and 250 mM NaCl for 4 days and subsequently grown in nutrient solution for a further 2 days to observe the post-stress responses. Under saline conditions, plants showed osmotic stress responses that included low leaf relative water content and high proline content. Salinity induced oxidative stress by the over-accumulation of reactive oxygen species (H(2)O(2) and O(2)(•−)) and methylglyoxal. Salinity also impaired the non-enzymatic and enzymatic components of the antioxidant defense system. On the other hand, excessive Na(+) uptake induced ionic stress which resulted in a lower content of other minerals (K(+), Ca(2+), and Mg(2+)), and a reduction in photosynthetic pigment synthesis and plant growth. After 2 days in the normal nutrient solution, the plants showed improvements in antioxidant and glyoxalase system activities, followed by improvements in plant growth, water balance, and chlorophyll synthesis. The antioxidant and glyoxalase systems worked in concert to scavenge toxic reactive oxygen species (ROS), thereby reducing lipid peroxidation and membrane damage. Taken together, these findings indicate that tomato plants can tolerate salinity and show rapid post-stress recovery by enhancement of their antioxidant defense and glyoxalase systems. |
format | Online Article Text |
id | pubmed-6770412 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-67704122019-10-30 Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems Parvin, Khursheda Hasanuzzaman, Mirza Bhuyan, M. H. M. Borhannuddin Nahar, Kamrun Mohsin, Sayed Mohammad Fujita, Masayuki Antioxidants (Basel) Article Salinity toxicity and the post-stress restorative process were examined to identify the salt tolerance mechanism in tomato, with a focus on the antioxidant defense and glyoxalase systems. Hydroponically grown 15 day-old tomato plants (Solanum lycopersicum L. cv. Pusa Ruby) were treated with 150 and 250 mM NaCl for 4 days and subsequently grown in nutrient solution for a further 2 days to observe the post-stress responses. Under saline conditions, plants showed osmotic stress responses that included low leaf relative water content and high proline content. Salinity induced oxidative stress by the over-accumulation of reactive oxygen species (H(2)O(2) and O(2)(•−)) and methylglyoxal. Salinity also impaired the non-enzymatic and enzymatic components of the antioxidant defense system. On the other hand, excessive Na(+) uptake induced ionic stress which resulted in a lower content of other minerals (K(+), Ca(2+), and Mg(2+)), and a reduction in photosynthetic pigment synthesis and plant growth. After 2 days in the normal nutrient solution, the plants showed improvements in antioxidant and glyoxalase system activities, followed by improvements in plant growth, water balance, and chlorophyll synthesis. The antioxidant and glyoxalase systems worked in concert to scavenge toxic reactive oxygen species (ROS), thereby reducing lipid peroxidation and membrane damage. Taken together, these findings indicate that tomato plants can tolerate salinity and show rapid post-stress recovery by enhancement of their antioxidant defense and glyoxalase systems. MDPI 2019-09-01 /pmc/articles/PMC6770412/ /pubmed/31480540 http://dx.doi.org/10.3390/antiox8090350 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Parvin, Khursheda Hasanuzzaman, Mirza Bhuyan, M. H. M. Borhannuddin Nahar, Kamrun Mohsin, Sayed Mohammad Fujita, Masayuki Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title | Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title_full | Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title_fullStr | Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title_full_unstemmed | Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title_short | Comparative Physiological and Biochemical Changes in Tomato (Solanum lycopersicum L.) under Salt Stress and Recovery: Role of Antioxidant Defense and Glyoxalase Systems |
title_sort | comparative physiological and biochemical changes in tomato (solanum lycopersicum l.) under salt stress and recovery: role of antioxidant defense and glyoxalase systems |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6770412/ https://www.ncbi.nlm.nih.gov/pubmed/31480540 http://dx.doi.org/10.3390/antiox8090350 |
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