Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids
Toxic heavy metals and metalloids in agricultural ecosystems are crucial factors that limit global crop productivity and food safety. Industrial toxic heavy metals and metalloids such as cadmium, lead, and arsenic have contaminated large areas of arable land in the world and their accumulation in th...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-07-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2020.00909/full |
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| author | Beibei Hu Fenglin Deng Guang Chen Xuan Chen Wei Gao Lu Long Jixing Xia Zhong-Hua Chen Zhong-Hua Chen |
| author_facet | Beibei Hu Fenglin Deng Guang Chen Xuan Chen Wei Gao Lu Long Jixing Xia Zhong-Hua Chen Zhong-Hua Chen |
| author_sort | Beibei Hu |
| collection | DOAJ |
| description | Toxic heavy metals and metalloids in agricultural ecosystems are crucial factors that limit global crop productivity and food safety. Industrial toxic heavy metals and metalloids such as cadmium, lead, and arsenic have contaminated large areas of arable land in the world and their accumulation in the edible parts of crops is causing serious health risks to humans and animals. Plants have co-evolved with various concentrations of these toxic metals and metalloids in soil and water. Some green plant species have significant innovations in key genes for the adaptation of abiotic stress tolerance pathways that are able to tolerate heavy metals and metalloids. Increasing evidence has demonstrated that phytohormone abscisic acid (ABA) plays a vital role in the alleviation of heavy metal and metalloid stresses in plants. Here, we trace the evolutionary origins of the key gene families connecting ABA signaling with tolerance to heavy metals and metalloids in green plants. We also summarize the molecular and physiological aspects of ABA in the uptake, root-to-shoot translocation, chelation, sequestration, reutilization, and accumulation of key heavy metals and metalloids in plants. The molecular evolution and interaction between the ABA signaling pathway and mechanisms for heavy metal and metalloid tolerance are highlighted in this review. Therefore, we propose that it is promising to manipulate ABA signaling in plant tissues to reduce the uptake and accumulation of toxic heavy metals and metalloids in crops through the application of ABA-producing bacteria or ABA analogues. This may lead to improvements in tolerance of major crops to heavy metals and metalloids. |
| first_indexed | 2024-12-11T16:05:33Z |
| format | Article |
| id | doaj.art-734bfdcc4933421889628d0c92ad8e4c |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-11T16:05:33Z |
| publishDate | 2020-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-734bfdcc4933421889628d0c92ad8e4c2022-12-22T00:59:12ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2020-07-011110.3389/fpls.2020.00909547525Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and MetalloidsBeibei Hu0Fenglin Deng1Guang Chen2Xuan Chen3Wei Gao4Lu Long5Jixing Xia6Zhong-Hua Chen7Zhong-Hua Chen8Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, ChinaEngineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, ChinaEngineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, ChinaEngineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, ChinaState Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, ChinaState Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, ChinaState Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, ChinaSchool of Science, Western Sydney University, Penrith, NSW, AustraliaHawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, AustraliaToxic heavy metals and metalloids in agricultural ecosystems are crucial factors that limit global crop productivity and food safety. Industrial toxic heavy metals and metalloids such as cadmium, lead, and arsenic have contaminated large areas of arable land in the world and their accumulation in the edible parts of crops is causing serious health risks to humans and animals. Plants have co-evolved with various concentrations of these toxic metals and metalloids in soil and water. Some green plant species have significant innovations in key genes for the adaptation of abiotic stress tolerance pathways that are able to tolerate heavy metals and metalloids. Increasing evidence has demonstrated that phytohormone abscisic acid (ABA) plays a vital role in the alleviation of heavy metal and metalloid stresses in plants. Here, we trace the evolutionary origins of the key gene families connecting ABA signaling with tolerance to heavy metals and metalloids in green plants. We also summarize the molecular and physiological aspects of ABA in the uptake, root-to-shoot translocation, chelation, sequestration, reutilization, and accumulation of key heavy metals and metalloids in plants. The molecular evolution and interaction between the ABA signaling pathway and mechanisms for heavy metal and metalloid tolerance are highlighted in this review. Therefore, we propose that it is promising to manipulate ABA signaling in plant tissues to reduce the uptake and accumulation of toxic heavy metals and metalloids in crops through the application of ABA-producing bacteria or ABA analogues. This may lead to improvements in tolerance of major crops to heavy metals and metalloids.https://www.frontiersin.org/article/10.3389/fpls.2020.00909/fullplant evolutioncomparative genomicscadmiumarsenicleaddetoxification |
| spellingShingle | Beibei Hu Fenglin Deng Guang Chen Xuan Chen Wei Gao Lu Long Jixing Xia Zhong-Hua Chen Zhong-Hua Chen Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids Frontiers in Plant Science plant evolution comparative genomics cadmium arsenic lead detoxification |
| title | Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids |
| title_full | Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids |
| title_fullStr | Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids |
| title_full_unstemmed | Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids |
| title_short | Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids |
| title_sort | evolution of abscisic acid signaling for stress responses to toxic metals and metalloids |
| topic | plant evolution comparative genomics cadmium arsenic lead detoxification |
| url | https://www.frontiersin.org/article/10.3389/fpls.2020.00909/full |
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