Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system
Arsenic uptake by plants is species-specific and its level in terrestrial plants of uncontaminated sites ranged from 0.009 to 1.5 mg/kg. Plants with high metal or metalloid uptake capability in their biomass are called hyperaccumulators. The most efficient arsenic (As) hyperaccumulator belongs to Pt...
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Association for Promotion of Holistic Approach to Environment
2023-06-01
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| Series: | The Holistic Approach to Environment |
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| Online Access: | https://casopis.hrcpo.com/wp-content/uploads/2023/05/Barhai-et-al_HAE_13_2023_3.pdf |
| _version_ | 1797807119178661888 |
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| author | Akan Barhai Suchismita Das |
| author_facet | Akan Barhai Suchismita Das |
| author_sort | Akan Barhai |
| collection | DOAJ |
| description | Arsenic uptake by plants is species-specific and its level in terrestrial plants of uncontaminated sites ranged from 0.009 to 1.5 mg/kg. Plants with high metal or metalloid uptake capability in their biomass are called hyperaccumulators. The most efficient arsenic (As) hyperaccumulator belongs to Pteridaceae with species Pteris vittata L. and Pityrogramma calomelanos L., both species can accumulate more than 8000 mg/kg As in their above-ground parts. Higher concentrations of As can interfere with various metabolic activities and manifest through several morphological impairments. A higher concentration of As accelerates the production of free radicals and reactive oxygen species (ROS) within the cell. Plants have a scavenging system to regulate the production of ROS; the scavenging system is also known as the antioxidant defence system. The defence mechanism consists of both an enzymatic and non-enzymatic antioxidant system. Non-enzymatic antioxidant includes carotenoids, ascorbic acid, and glutathione whereas the enzymatic antioxidant system comprises superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, and glutathione reductase. |
| first_indexed | 2024-03-13T06:17:45Z |
| format | Article |
| id | doaj.art-7ea8ab0c47894c3b938648073180207f |
| institution | Directory Open Access Journal |
| issn | 1848-0071 |
| language | English |
| last_indexed | 2024-03-13T06:17:45Z |
| publishDate | 2023-06-01 |
| publisher | Association for Promotion of Holistic Approach to Environment |
| record_format | Article |
| series | The Holistic Approach to Environment |
| spelling | doaj.art-7ea8ab0c47894c3b938648073180207f2023-06-10T05:50:58ZengAssociation for Promotion of Holistic Approach to EnvironmentThe Holistic Approach to Environment1848-00712023-06-0113311312210.33765/thate.13.3.4Arsenic uptake and accumulation in plants: toxicity and antioxidant defence systemAkan Barhai0Suchismita Das1Assam University, Department of Life Science and Bioinformatics, Aquatic Toxicology and Remediation Laboratory, Silchar, IndiaAssam University, Department of Life Science and Bioinformatics, Aquatic Toxicology and Remediation Laboratory, Silchar, IndiaArsenic uptake by plants is species-specific and its level in terrestrial plants of uncontaminated sites ranged from 0.009 to 1.5 mg/kg. Plants with high metal or metalloid uptake capability in their biomass are called hyperaccumulators. The most efficient arsenic (As) hyperaccumulator belongs to Pteridaceae with species Pteris vittata L. and Pityrogramma calomelanos L., both species can accumulate more than 8000 mg/kg As in their above-ground parts. Higher concentrations of As can interfere with various metabolic activities and manifest through several morphological impairments. A higher concentration of As accelerates the production of free radicals and reactive oxygen species (ROS) within the cell. Plants have a scavenging system to regulate the production of ROS; the scavenging system is also known as the antioxidant defence system. The defence mechanism consists of both an enzymatic and non-enzymatic antioxidant system. Non-enzymatic antioxidant includes carotenoids, ascorbic acid, and glutathione whereas the enzymatic antioxidant system comprises superoxide dismutase, catalase, ascorbate peroxidase, guaiacol peroxidase, and glutathione reductase. https://casopis.hrcpo.com/wp-content/uploads/2023/05/Barhai-et-al_HAE_13_2023_3.pdfarsenic in plantsphysiological disturbancesreactive oxygen speciesantioxidant enzymes |
| spellingShingle | Akan Barhai Suchismita Das Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system The Holistic Approach to Environment arsenic in plants physiological disturbances reactive oxygen species antioxidant enzymes |
| title | Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system |
| title_full | Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system |
| title_fullStr | Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system |
| title_full_unstemmed | Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system |
| title_short | Arsenic uptake and accumulation in plants: toxicity and antioxidant defence system |
| title_sort | arsenic uptake and accumulation in plants toxicity and antioxidant defence system |
| topic | arsenic in plants physiological disturbances reactive oxygen species antioxidant enzymes |
| url | https://casopis.hrcpo.com/wp-content/uploads/2023/05/Barhai-et-al_HAE_13_2023_3.pdf |
| work_keys_str_mv | AT akanbarhai arsenicuptakeandaccumulationinplantstoxicityandantioxidantdefencesystem AT suchismitadas arsenicuptakeandaccumulationinplantstoxicityandantioxidantdefencesystem |