Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety
The mining of heavy metals from the environment leads to an increase in soil pollution, leading to the uptake of heavy metals into plant tissue. The build-up of toxic metals in plant cells often leads to cellular damage and senescence. Therefore, it is of utmost importance to produce plants with imp...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
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| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/9/12/1781 |
| _version_ | 1797544576512163840 |
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| author | Marshall Keyster Lee-Ann Niekerk Gerhard Basson Mogamat Carelse Olalekan Bakare Ndiko Ludidi Ashwil Klein Lukhanyo Mekuto Arun Gokul |
| author_facet | Marshall Keyster Lee-Ann Niekerk Gerhard Basson Mogamat Carelse Olalekan Bakare Ndiko Ludidi Ashwil Klein Lukhanyo Mekuto Arun Gokul |
| author_sort | Marshall Keyster |
| collection | DOAJ |
| description | The mining of heavy metals from the environment leads to an increase in soil pollution, leading to the uptake of heavy metals into plant tissue. The build-up of toxic metals in plant cells often leads to cellular damage and senescence. Therefore, it is of utmost importance to produce plants with improved tolerance to heavy metals for food security, as well as to limit heavy metal uptake for improved food safety purposes. To achieve this goal, our understanding of the signaling mechanisms which regulate toxic heavy metal uptake and tolerance in plants requires extensive improvement. In this review, we summarize recent literature and data on heavy metal toxicity (oral reference doses) and the impact of the metals on food safety and food security. Furthermore, we discuss some of the key events (reception, transduction, and response) in the heavy metal signaling cascades in the cell wall, plasma membrane, and cytoplasm. Our future perspectives provide an outlook of the exciting advances that will shape the plant heavy metal signaling field in the near future. |
| first_indexed | 2024-03-10T14:02:28Z |
| format | Article |
| id | doaj.art-e2dceff738574077b7b56fef957f7e67 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T14:02:28Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-e2dceff738574077b7b56fef957f7e672023-11-21T01:00:43ZengMDPI AGPlants2223-77472020-12-01912178110.3390/plants9121781Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and SafetyMarshall Keyster0Lee-Ann Niekerk1Gerhard Basson2Mogamat Carelse3Olalekan Bakare4Ndiko Ludidi5Ashwil Klein6Lukhanyo Mekuto7Arun Gokul8Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaEnvironmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaPlant Biotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaEnvironmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaEnvironmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaDST-NRF Centre of Excellence in Food Security, University of the Western Cape, Bellville 7530, South AfricaPlant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville 7535, South AfricaDepartment of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South AfricaDepartment of Chemical Engineering, University of Johannesburg, Johannesburg 2028, South AfricaThe mining of heavy metals from the environment leads to an increase in soil pollution, leading to the uptake of heavy metals into plant tissue. The build-up of toxic metals in plant cells often leads to cellular damage and senescence. Therefore, it is of utmost importance to produce plants with improved tolerance to heavy metals for food security, as well as to limit heavy metal uptake for improved food safety purposes. To achieve this goal, our understanding of the signaling mechanisms which regulate toxic heavy metal uptake and tolerance in plants requires extensive improvement. In this review, we summarize recent literature and data on heavy metal toxicity (oral reference doses) and the impact of the metals on food safety and food security. Furthermore, we discuss some of the key events (reception, transduction, and response) in the heavy metal signaling cascades in the cell wall, plasma membrane, and cytoplasm. Our future perspectives provide an outlook of the exciting advances that will shape the plant heavy metal signaling field in the near future.https://www.mdpi.com/2223-7747/9/12/1781cell wall signalingfood safetyfood securityglutathioneheavy metalshydrogen sulfide |
| spellingShingle | Marshall Keyster Lee-Ann Niekerk Gerhard Basson Mogamat Carelse Olalekan Bakare Ndiko Ludidi Ashwil Klein Lukhanyo Mekuto Arun Gokul Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety Plants cell wall signaling food safety food security glutathione heavy metals hydrogen sulfide |
| title | Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety |
| title_full | Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety |
| title_fullStr | Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety |
| title_full_unstemmed | Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety |
| title_short | Decoding Heavy Metal Stress Signalling in Plants: Towards Improved Food Security and Safety |
| title_sort | decoding heavy metal stress signalling in plants towards improved food security and safety |
| topic | cell wall signaling food safety food security glutathione heavy metals hydrogen sulfide |
| url | https://www.mdpi.com/2223-7747/9/12/1781 |
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