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Gupta S, Kant K, Kaur N, Jindal P, Naeem M, Khan MN, Ali A. Polyamines: Rising stars against metal and metalloid toxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109030. [PMID: 39137683 DOI: 10.1016/j.plaphy.2024.109030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
Globally, metal/metalloid(s) soil contamination is a persistent issue that affects the atmosphere, soil, water and plant health in today's industrialised world. However, an overabundance of these transition ions promotes the excessive buildup of reactive oxygen species (ROS) and ion imbalance, which harms agricultural productivity. Plants employ several strategies to overcome their negative effects, including hyperaccumulation, tolerance, exclusion, and chelation with organic molecules. Polyamines (PAs) are the organic compounds that act as chelating agents and modulate various physiological, biochemical, and molecular processes under metal/metalloid(s) stress. Their catabolic products, including H2O2 and gamma amino butyric acid (GABA), are also crucial signalling molecules in abiotic stress situations, particularly under metal/metalloid(s) stress. In this review, we explained how PAs regulate genes and enzymes, particularly under metal/metalloid(s) stress with a specific focus on arsenic (As), boron (B), cadmium (Cd), chromium (Cr), and zinc (Zn). The PAs regulate various plant stress responses by crosstalking with other plant hormones, upregulating phytochelatin, and metallothionein synthesis, modulating stomatal closure and antioxidant capacity. This review presents valuable insights into how PAs use a variety of tactics to reduce the harmful effects of metal/metalloid(s) through multifaceted strategies.
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Affiliation(s)
- Shalu Gupta
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Krishan Kant
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Navneet Kaur
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Parnika Jindal
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - M Naeem
- Department of Botany, Aligarh Muslim University, Aligarh, 2020002, UP, India
| | - M Nasir Khan
- Renewable Energy and Environmental Technology Center, University of Tabuk, Tabuk, 71491, Saudi Arabia; Department of Science and Basic Studies, Applied College, University of Tabuk, Tabuk-71491, Saudi Arabia
| | - Akbar Ali
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India.
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Guo H, Deng M, Yu F, Li H, Cao Z, Zeng Q, Chen Z, Luo H, Tang B. Phenotypic and Proteomic Insights into Differential Cadmium Accumulation in Maize Kernels. Genes (Basel) 2023; 14:2204. [PMID: 38137026 PMCID: PMC10742529 DOI: 10.3390/genes14122204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
The contamination of agricultural soil with cadmium (Cd), a heavy metal, poses a significant environmental challenge, affecting crop growth, development, and human health. Previous studies have established the pivotal role of the ZmHMA3 gene, a P-type ATPase heavy metal transporter, in determining variable Cd accumulation in maize grains among 513 inbred lines. To decipher the molecular mechanism underlying mutation-induced phenotypic differences mediated by ZmHMA3, we conducted a quantitative tandem mass tag (TMT)-based proteomic analysis of immature maize kernels. This analysis aimed to identify differentially expressed proteins (DEPs) in wild-type B73 and ZmHMA3 null mutant under Cd stress. The findings demonstrated that ZmHMA3 accumulated higher levels of Cd compared to B73 when exposed to varying Cd concentrations in the soil. In comparison to soil with a low Cd concentration, B73 and ZmHMA3 exhibited 75 and 142 DEPs, respectively, with 24 common DEPs shared between them. ZmHMA3 showed a higher induction of upregulated genes related to Cd stress than B73. Amino sugar and nucleotide sugar metabolism was specifically enriched in B73, while phenylpropanoid biosynthesis, nitrogen metabolism, and glyoxylate and dicarboxylate metabolism appeared to play a more significant role in ZmHMA3. This study provides proteomics insights into unraveling the molecular mechanism underlying the differences in Cd accumulation in maize kernels.
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Affiliation(s)
- Huanle Guo
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.G.); (M.D.)
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
| | - Min Deng
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.G.); (M.D.)
- Maize Engineering Technology Research Center of Hunan Province, Changsha 410128, China
| | - Feng Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China;
| | - Han Li
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
| | - Zhongyang Cao
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
| | - Qiang Zeng
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
| | - Zhihui Chen
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
| | - Hongbing Luo
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China; (H.G.); (M.D.)
- Maize Engineering Technology Research Center of Hunan Province, Changsha 410128, China
| | - Bin Tang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (H.L.); (Z.C.); (Q.Z.); (Z.C.)
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