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Napieraj N, Janicka M, Reda M. Interactions of Polyamines and Phytohormones in Plant Response to Abiotic Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:1159. [PMID: 36904019 PMCID: PMC10005635 DOI: 10.3390/plants12051159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/17/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Numerous environmental conditions negatively affect plant production. Abiotic stresses, such as salinity, drought, temperature, and heavy metals, cause damage at the physiological, biochemical, and molecular level, and limit plant growth, development, and survival. Studies have indicated that small amine compounds, polyamines (PAs), play a key role in plant tolerance to various abiotic stresses. Pharmacological and molecular studies, as well as research using genetic and transgenic approaches, have revealed the favorable effects of PAs on growth, ion homeostasis, water maintenance, photosynthesis, reactive oxygen species (ROS) accumulation, and antioxidant systems in many plant species under abiotic stress. PAs display a multitrack action: regulating the expression of stress response genes and the activity of ion channels; improving the stability of membranes, DNA, and other biomolecules; and interacting with signaling molecules and plant hormones. In recent years the number of reports indicating crosstalk between PAs and phytohormones in plant response to abiotic stresses has increased. Interestingly, some plant hormones, previously known as plant growth regulators, can also participate in plant response to abiotic stresses. Therefore, the main goal of this review is to summarize the most significant results that represent the interactions between PAs and plant hormones, such as abscisic acid, brassinosteroids, ethylene, jasmonates, and gibberellins, in plants under abiotic stress. The future perspectives for research focusing on the crosstalk between PAs and plant hormones were also discussed.
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Affiliation(s)
| | | | - Małgorzata Reda
- Department of Plant Molecular Physiology, Faculty of Biological Sciences, University of Wrocław, Kanonia 6/8, 50-328 Wroclaw, Poland
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Liu L, Liu D, Wang Z, Zou C, Wang B, Zhang H, Gai Z, Zhang P, Wang Y, Li C. Exogenous allantoin improves the salt tolerance of sugar beet by increasing putrescine metabolism and antioxidant activities. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:699-713. [PMID: 32750647 DOI: 10.1016/j.plaphy.2020.06.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 05/22/2023]
Abstract
Allantoin as a nitrogen metabolite can improve the salt tolerance in plants, but its mechanism of action remain elusive. Herein, the effects of pretreatment with exogenous allantoin in salt tolerance were investigated in sugar beet. The seedlings were subjected to salt stress (300 mM Na+) without or with different allantoin concentrations (0.01, 0.1, and 1 mM). The effects of allantoin on plant growth, homeostasis, oxidative damage, osmoregulation, and polyamine metabolism were studied. The results showed that salt stress inhibited the net photosynthetic rate and plant growth, and caused oxidative damage. However, these adverse effects were mitigated by exogenous allantoin in a dose-dependent manner, especially at 0.1 mM. Allantoin reduced the accumulation of ROS by increasing the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), and AsA content. Under salt stress, allantoin reduced the root concentrations of free putrescine (Put) but increased the free spermine (Spm) in leaves and roots. Furthermore, allantoin decreased the Na+/K+ ratio and promoted the accumulation of betaine and soluble sugars in leaves and roots. Under salinity conditions, allantoin may enhance the antioxidant system and improve ion homeostasis by enhancing putrescine and/or spermine accumulation. In addition, Pearson's correlation and principal component analysis (PCA) established correlations between physiological parameters, and significant differences between different concentrations of allantoin were observed. In total, exogenous allantoin effectively reduced the oxidative damage and ion toxicity in sugar beet, caused by salinity, this finding would be helpful in improving salt tolerance in plant.
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Affiliation(s)
- Lei Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Dan Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Ziyang Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Chunlei Zou
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Bin Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - He Zhang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang, China
| | - Pengfei Zhang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yubo Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Caifeng Li
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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Kaur H, Sirhindi G, Bhardwaj R, Alyemeni MN, Siddique KHM, Ahmad P. 28-homobrassinolide regulates antioxidant enzyme activities and gene expression in response to salt- and temperature-induced oxidative stress in Brassica juncea. Sci Rep 2018; 8:8735. [PMID: 29880861 PMCID: PMC5992199 DOI: 10.1038/s41598-018-27032-w] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/18/2018] [Indexed: 01/08/2023] Open
Abstract
Brassinosteroids (BRs) are a group of naturally occurring plant steroid hormones that can induce plant tolerance to various plant stresses by regulating ROS production in cells, but the underlying mechanisms of this scavenging activity by BRs are not well understood. This study investigated the effects of 28-homobrassinolide (28-HBL) seed priming on Brassica juncea seedlings subjected to the combined stress of extreme temperatures (low, 4 °C or high, 44 °C) and salinity (180 mM), either alone or supplemented with 28-HBL treatments (0, 10−6, 10−9, 10−12 M). The combined temperature and salt stress treatments significantly reduced shoot and root lengths, but these improved when supplemented with 28-HBL although the response was dose-dependent. The combined stress alone significantly increased H2O2 content, but was inhibited when supplemented with 28-HBL. The activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APOX), glutathione reductase (GR), dehydroascorbate reductase (DHAR) and monodehydroascorbate reductase (MDHAR) increased in response to 28-HBL. Overall, the 28-HBL seed priming treatment improved the plant’s potential to combat the toxic effects imposed by the combined temperature and salt stress by tightly regulating the accumulation of ROS, which was reflected in the improved redox state of antioxidants.
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Affiliation(s)
- Harpreet Kaur
- Department of Botany, Punjabi University, Patiala, 147002, Punjab, India.,Department of Botanical & Environmental Sciences, GNDU, Amritsar, Punjab, India
| | - Geetika Sirhindi
- Department of Botany, Punjabi University, Patiala, 147002, Punjab, India
| | - Renu Bhardwaj
- Department of Botanical & Environmental Sciences, GNDU, Amritsar, Punjab, India
| | - M N Alyemeni
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture and UWA School of Agriculture & Environment, The University of Western Australia, LB 5005, Perth, WA, 6001, Australia
| | - Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia. .,Department of Botany, S.P. College, Srinagar, 190001, Jammu and Kashmir, India.
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