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Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth

This study investigates the effect of fly ash (FA) on the Pithecellobium dulce (Roxb) Benth. trees growing at three different locations. FA stress caused significant changes in different leaf attributes like sugar, protein contents, photosynthetic pigments, nitrate content and nitrate reductase acti...

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Autores principales: Qadir, Sami Ullah, Raja, Vaseem, Siddiqui, Weqar Ahmad, Mahmooduzzafar, Abd_Allah, Elsayed F., Hashem, Abeer, Alam, Pravej, Ahmad, Parvaiz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6963547/
https://www.ncbi.nlm.nih.gov/pubmed/31757084
http://dx.doi.org/10.3390/plants8120528
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author Qadir, Sami Ullah
Raja, Vaseem
Siddiqui, Weqar Ahmad
Mahmooduzzafar,
Abd_Allah, Elsayed F.
Hashem, Abeer
Alam, Pravej
Ahmad, Parvaiz
author_facet Qadir, Sami Ullah
Raja, Vaseem
Siddiqui, Weqar Ahmad
Mahmooduzzafar,
Abd_Allah, Elsayed F.
Hashem, Abeer
Alam, Pravej
Ahmad, Parvaiz
author_sort Qadir, Sami Ullah
collection PubMed
description This study investigates the effect of fly ash (FA) on the Pithecellobium dulce (Roxb) Benth. trees growing at three different locations. FA stress caused significant changes in different leaf attributes like sugar, protein contents, photosynthetic pigments, nitrate content and nitrate reductase activity in foliar tissues of plants growing at a highly contaminated site, as compared to a low-pollution site. Lower rates of stomatal conductance (SC) were observed in P. dulce leaves under fly ash stress conditions that drastically reduced net photosynthetic rate (P(N)); however, intercellular carbon dioxide concentration and stomatal index (SI) showed an increase under the same stress conditions. On the other hand, significant increase was also observed in the proline, sulphur and nitrogen contents. A significant increase in oxidative stress and, consequently, in antioxidant enzymes such as ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD), and superoxidase dismutase (SOD) and Air pollution tolerance index were discovered at three different sites. The transcriptional expression of antioxidant and stress responsive genes was higher at HPS as compared to two other two sites of the study. Taken together the results demonstrated that the P. dulce is best suited as a fly ash stress tolerant plant species with the potential to provide an alternative for the reclamation of fly ash affected soils.
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spelling pubmed-69635472020-01-30 Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth Qadir, Sami Ullah Raja, Vaseem Siddiqui, Weqar Ahmad Mahmooduzzafar, Abd_Allah, Elsayed F. Hashem, Abeer Alam, Pravej Ahmad, Parvaiz Plants (Basel) Article This study investigates the effect of fly ash (FA) on the Pithecellobium dulce (Roxb) Benth. trees growing at three different locations. FA stress caused significant changes in different leaf attributes like sugar, protein contents, photosynthetic pigments, nitrate content and nitrate reductase activity in foliar tissues of plants growing at a highly contaminated site, as compared to a low-pollution site. Lower rates of stomatal conductance (SC) were observed in P. dulce leaves under fly ash stress conditions that drastically reduced net photosynthetic rate (P(N)); however, intercellular carbon dioxide concentration and stomatal index (SI) showed an increase under the same stress conditions. On the other hand, significant increase was also observed in the proline, sulphur and nitrogen contents. A significant increase in oxidative stress and, consequently, in antioxidant enzymes such as ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD), and superoxidase dismutase (SOD) and Air pollution tolerance index were discovered at three different sites. The transcriptional expression of antioxidant and stress responsive genes was higher at HPS as compared to two other two sites of the study. Taken together the results demonstrated that the P. dulce is best suited as a fly ash stress tolerant plant species with the potential to provide an alternative for the reclamation of fly ash affected soils. MDPI 2019-11-20 /pmc/articles/PMC6963547/ /pubmed/31757084 http://dx.doi.org/10.3390/plants8120528 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
Qadir, Sami Ullah
Raja, Vaseem
Siddiqui, Weqar Ahmad
Mahmooduzzafar,
Abd_Allah, Elsayed F.
Hashem, Abeer
Alam, Pravej
Ahmad, Parvaiz
Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title_full Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title_fullStr Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title_full_unstemmed Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title_short Fly-Ash Pollution Modulates Growth, Biochemical Attributes, Antioxidant Activity and Gene Expression in Pithecellobium Dulce (Roxb) Benth
title_sort fly-ash pollution modulates growth, biochemical attributes, antioxidant activity and gene expression in pithecellobium dulce (roxb) benth
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6963547/
https://www.ncbi.nlm.nih.gov/pubmed/31757084
http://dx.doi.org/10.3390/plants8120528
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