1
|
Li Y, He Z, Xu J, Jiang S, Han X, Wu L, Zhuo R, Qiu W. SpSIZ1 from hyperaccumulator Sedum plumbizincicola orchestrates SpABI5 to fine-tune cadmium tolerance. FRONTIERS IN PLANT SCIENCE 2024; 15:1382121. [PMID: 39045590 PMCID: PMC11264288 DOI: 10.3389/fpls.2024.1382121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 06/24/2024] [Indexed: 07/25/2024]
Abstract
Sedum plumbizincicola is a renowned hyperaccumulator of cadmium (Cd), possesses significant potential for eco-friendly phytoremediation of soil contaminated with Cd. Nevertheless, comprehension of the mechanisms underpinning its Cd stress response remains constrained, primarily due to the absence of a comprehensive genome sequence and an established genetic transformation system. In this study, we successfully identified a novel protein that specifically responds to Cd stress through early comparative iTRAQ proteome and transcriptome analyses under Cd stress conditions. To further investigate its structure, we employed AlphaFold, a powerful tool for protein structure prediction, and found that this newly identified protein shares a similar structure with Arabidopsis AtSIZ1. Therefore, we named it Sedum plumbizincicola SIZ1 (SpSIZ1). Our study revealed that SpSIZ1 plays a crucial role in positively regulating Cd tolerance through its coordination with SpABI5. Overexpression of SpSIZ1 significantly enhanced plant resistance to Cd stress and reduced Cd accumulation. Expression pattern analysis revealed higher levels of SpSIZ1 expression in roots compared to stems and leaves, with up-regulation under Cd stress induction. Importantly, overexpressing SpSIZ1 resulted in lower Cd translocation factors (Tfs) but maintained relatively constant Cd levels in roots under Cd stress, leading to enhanced Cd stress resistance in plants. Protein interaction analysis revealed that SpSIZ1 interacts with SpABI5, and the expression of genes responsive to abscisic acid (ABA) through SpABI5-dependent signaling was significantly up-regulated in SpSIZ1-overexpressing plants with Cd stress treatment. Collectively, our results illustrate that SpSIZ1 interacts with SpABI5, enhancing the expression of ABA downstream stress-related genes through SpABI5, thereby increasing Cd tolerance in plants.
Collapse
Affiliation(s)
- Yuhong Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Faculty of Forestry, Nanjing Forestry University, Nanjing, China
| | - Zhengquan He
- Key Laboratory of Three Gorges Regional Plant Genetic & Germplasm Enhancement (CTGU)/Biotechnology Research Center, China Three Gorges University, Yichang, China
| | - Jing Xu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Shenyue Jiang
- Meicheng Office of Market Supervision Bureau of Jiande City, Jiande, Zhejiang, China
| | - Xiaojiao Han
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Longhua Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| |
Collapse
|
2
|
Jia H, Lei Y, Pan S, Zhu J, Shen Z, Tang L, Hou D. The impacts of exogenous phosphorus on Cd absorption in perennial ryegrass root cell: Kinetic and mechanism study. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108220. [PMID: 38039583 DOI: 10.1016/j.plaphy.2023.108220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/01/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023]
Abstract
Phosphorus (P) is critical to plants in metal-contaminated soils because it participates in various biochemical reactions during plant growth. However, the mechanisms of P in mitigating the toxicity of heavy metals to ryegrass root is still veiled. In this study, the physiological and biochemical dynamics of the ryegrass root under various cadmium (Cd) and P conditions were investigated in a hydroponic system. Cd stress decreased the length of the ryegrass root, but P application enhanced the root elongation to reduce the Cd concentration in the root. Both Cd and P dosages were positively correlated with hemicellulose 1 content, pectin content, and PME activity, while having a negative effect on cellulose content. Moreover, the addition of 80 mg L-1 P increased the contents of pectin and hemicellulose 1 by 2.5 and 5.8% even with 4 mg L-1 Cd. In addition, P supply increased pectin methylesterbase activity under Cd stress, which further changed the extra-cytoplasmic structures and cell wall composition. Thus, exogenous P promoted the immobilization of Cd onto the cell wall and protected protoplast primarily through indirectly regulating the binding capacity of the root cell wall for Cd.
Collapse
Affiliation(s)
- Hui Jia
- School of the Environment and Safety Engineering, School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China; School of Environment, Tsinghua University, Beijing, 100084, China
| | - Yuze Lei
- School of the Environment and Safety Engineering, School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
| | - Shizhen Pan
- Department of Environment in Yangtze Delta Region Institute of Tsinghua University, Zhejiang Provincial Key Laboratory of Water Science and Technology, Jiaxing, 314006, Zhejiang, China
| | - Jin Zhu
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Zhengtao Shen
- School of Earth and Engineering Sciences, Nanjing University, Nanjing, 210023, China.
| | - Lingyi Tang
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, T6G 2E3, Canada.
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing, 100084, China
| |
Collapse
|
3
|
Khan MIR, Nazir F, Maheshwari C, Chopra P, Chhillar H, Sreenivasulu N. Mineral nutrients in plants under changing environments: A road to future food and nutrition security. THE PLANT GENOME 2023; 16:e20362. [PMID: 37480222 DOI: 10.1002/tpg2.20362] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/25/2023] [Accepted: 05/20/2023] [Indexed: 07/23/2023]
Abstract
Plant nutrition is an important aspect that contributes significantly to sustainable agriculture, whereas minerals enrichment in edible source implies global human health; hence, both strategies need to be bridged to ensure "One Health" strategies. Abiotic stress-induced nutritional imbalance impairs plant growth. In this context, we discuss the molecular mechanisms related to the readjustment of nutrient pools for sustained plant growth under harsh conditions, and channeling the minerals to edible source (seeds) to address future nutritional security. This review particularly highlights interventions on (i) the physiological and molecular responses of mineral nutrients in crop plants under stressful environments; (ii) the deployment of breeding and biotechnological strategies for the optimization of nutrient acquisition, their transport, and distribution in plants under changing environments. Furthermore, the present review also infers the recent advancements in breeding and biotechnology-based biofortification approaches for nutrient enhancement in crop plants to optimize yield and grain mineral concentrations under control and stress-prone environments to address food and nutritional security.
Collapse
Affiliation(s)
| | - Faroza Nazir
- Department of Botany, Jamia Hamdard, New Delhi, India
| | - Chirag Maheshwari
- Division of Biochemistry, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | | | | | - Nese Sreenivasulu
- Consumer-Driven Grain Quality and Nutrition Center, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Banos, Philippines
| |
Collapse
|
4
|
Girelli CR. Editorial for the Special Issue "Advanced Research in Plant Metabolomics". Curr Issues Mol Biol 2023; 45:6701-6703. [PMID: 37623242 PMCID: PMC10453744 DOI: 10.3390/cimb45080423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
The study of plant metabolome and the role of cellular pathway end products has gained increased attention [...].
Collapse
Affiliation(s)
- Chiara Roberta Girelli
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Provincia le Lecce-Monteroni, 73100 Lecce, Italy
| |
Collapse
|
5
|
Wang X, Ai S, Liao H. Deciphering Interactions between Phosphorus Status and Toxic Metal Exposure in Plants and Rhizospheres to Improve Crops Reared on Acid Soil. Cells 2023; 12:cells12030441. [PMID: 36766784 PMCID: PMC9913701 DOI: 10.3390/cells12030441] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/10/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
Acid soils are characterized by deficiencies in essential nutrient elements, oftentimes phosphorus (P), along with toxicities of metal elements, such as aluminum (Al), manganese (Mn), and cadmium (Cd), each of which significantly limits crop production. In recent years, impressive progress has been made in revealing mechanisms underlying tolerance to high concentrations of Al, Mn, and Cd. Phosphorus is an essential nutrient element that can alleviate exposure to potentially toxic levels of Al, Mn, and Cd. In this review, recent advances in elucidating the genes responsible for the uptake, translocation, and redistribution of Al, Mn, and Cd in plants are first summarized, as are descriptions of the mechanisms conferring resistance to these toxicities. Then, literature highlights information on interactions of P nutrition with Al, Mn, and Cd toxicities, particularly possible mechanisms driving P alleviation of these toxicities, along with potential applications for crop improvement on acid soils. The roles of plant phosphate (Pi) signaling and associated gene regulatory networks relevant for coping with Al, Mn, and Cd toxicities, are also discussed. To develop varieties adapted to acid soils, future work needs to further decipher involved signaling pathways and key regulatory elements, including roles fulfilled by intracellular Pi signaling. The development of new strategies for remediation of acid soils should integrate the mechanisms of these interactions between limiting factors in acid soils.
Collapse
Affiliation(s)
- Xiurong Wang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Shaoying Ai
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Hong Liao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: ; Tel./Fax: +86-0591-88260230
| |
Collapse
|