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Chen Q, Arnao MB. Phytomelatonin: an emerging new hormone in plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5773-5778. [PMID: 36178429 PMCID: PMC9523825 DOI: 10.1093/jxb/erac307] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 06/16/2023]
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Sun C, Sun N, Ou Y, Gong B, Jin C, Shi Q, Lin X. Phytomelatonin and plant mineral nutrition. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5903-5917. [PMID: 35767844 DOI: 10.1093/jxb/erac289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/29/2022] [Indexed: 05/27/2023]
Abstract
Plant mineral nutrition is critical for agricultural productivity and for human nutrition; however, the availability of mineral elements is spatially and temporally heterogeneous in many ecosystems and agricultural landscapes. Nutrient imbalances trigger intricate signalling networks that modulate plant acclimation responses. One signalling agent of particular importance in such networks is phytomelatonin, a pleiotropic molecule with multiple functions. Evidence indicates that deficiencies or excesses of nutrients generally increase phytomelatonin levels in certain tissues, and it is increasingly thought to participate in the regulation of plant mineral nutrition. Alterations in endogenous phytomelatonin levels can protect plants from oxidative stress, influence root architecture, and influence nutrient uptake and efficiency of use through transcriptional and post-transcriptional regulation; such changes optimize mineral nutrient acquisition and ion homeostasis inside plant cells and thereby help to promote growth. This review summarizes current knowledge on the regulation of plant mineral nutrition by melatonin and highlights how endogenous phytomelatonin alters plant responses to specific mineral elements. In addition, we comprehensively discuss how melatonin influences uptake and transport under conditions of nutrient shortage.
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Affiliation(s)
- Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, PR China
| | - Nan Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, PR China
| | - Yiqun Ou
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, PR China
| | - Biao Gong
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, PR China
| | - Chongwei Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, PR China
| | - Qinghua Shi
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, PR China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, PR China
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Chen L, Xu S, Liu Y, Zu Y, Zhang F, Du L, Chen J, Li L, Wang K, Wang Y, Chen S, Chen Z, Du X. Identification of key gene networks controlling polysaccharide accumulation in different tissues of Polygonatum cyrtonema Hua by integrating metabolic phenotypes and gene expression profiles. FRONTIERS IN PLANT SCIENCE 2022; 13:1012231. [PMID: 36247596 PMCID: PMC9558278 DOI: 10.3389/fpls.2022.1012231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Plant polysaccharides, a type of important bioactive compound, are involved in multiple plant defense mechanisms, and in particular polysaccharide-alleviated abiotic stress has been well studied. Polygonatum cyrtonema Hua (P. cyrtonema Hua) is a medicinal and edible perennial plant that is used in traditional Chinese medicine and is rich in polysaccharides. Previous studies suggested that sucrose might act as a precursor for polysaccharide biosynthesis. However, the role of sucrose metabolism and transport in mediating polysaccharide biosynthesis remains largely unknown in P. cyrtonema Hua. In this study, we investigated the contents of polysaccharides, sucrose, glucose, and fructose in the rhizome, stem, leaf, and flower tissues of P. cyrtonema Hua, and systemically identified the genes associated with the sucrose metabolism and transport and polysaccharide biosynthesis pathways. Our results showed that polysaccharides were mainly accumulated in rhizomes, leaves, and flowers. Besides, there was a positive correlation between sucrose and polysaccharide content, and a negative correlation between glucose and polysaccharide content in rhizome, stem, leaf, and flower tissues. Then, the transcriptomic analyses of different tissues were performed, and differentially expressed genes related to sucrose metabolism and transport, polysaccharide biosynthesis, and transcription factors were identified. The analyses of the gene expression patterns provided novel regulatory networks for the molecular basis of high accumulation of polysaccharides, especially in the rhizome tissue. Furthermore, our findings explored that polysaccharide accumulation was highly correlated with the expression levels of SUS, INV, SWEET, and PLST, which are mediated by bHLH, bZIP, ERF, ARF, C2H2, and other genes in different tissues of P. cyrtonema Hua. Herein, this study contributes to a comprehensive understanding of the transcriptional regulation of polysaccharide accumulation and provides information regarding valuable genes involved in the tolerance to abiotic stresses in P. cyrtonema Hua.
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Affiliation(s)
- Longsheng Chen
- Anhui Engineering Laboratory for Agro-Products Processing, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Shuwen Xu
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Yujun Liu
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Yanhong Zu
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Fuyuan Zhang
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Liji Du
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Jun Chen
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Lei Li
- Jinzhai Senfeng Agricultural Technology Development Co., Ltd., Lu’an, China
| | - Kai Wang
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Yating Wang
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Shijin Chen
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Ziping Chen
- Anhui Promotion Center for Technology Achievements Transfer, Anhui Academy of Science and Technology, Hefei, China
| | - Xianfeng Du
- Anhui Engineering Laboratory for Agro-Products Processing, School of Tea & Food Science and Technology, Anhui Agricultural University, Hefei, China
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Jianing G, Yuhong G, Yijun G, Rasheed A, Qian Z, Zhiming X, Mahmood A, Shuheng Z, Zhuo Z, Zhuo Z, Xiaoxue W, Jian W. Improvement of heat stress tolerance in soybean ( Glycine max L), by using conventional and molecular tools. FRONTIERS IN PLANT SCIENCE 2022; 13:993189. [PMID: 36226280 PMCID: PMC9549248 DOI: 10.3389/fpls.2022.993189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/23/2022] [Indexed: 06/12/2023]
Abstract
The soybean is a significant legume crop, providing several vital dietary components. Extreme heat stress negatively affects soybean yield and quality, especially at the germination stage. Continuous change in climatic conditions is threatening the global food supply and food security. Therefore, it is a critical need of time to develop heat-tolerant soybean genotypes. Different molecular techniques have been developed to improve heat stress tolerance in soybean, but until now complete genetic mechanism of soybean is not fully understood. Various molecular methods, like quantitative trait loci (QTL) mapping, genetic engineering, transcription factors (TFs), transcriptome, and clustered regularly interspaced short palindromic repeats (CRISPR), are employed to incorporate heat tolerance in soybean under the extreme conditions of heat stress. These molecular techniques have significantly improved heat stress tolerance in soybean. Besides this, we can also use specific classical breeding approaches and different hormones to reduce the harmful consequences of heat waves on soybean. In future, integrated use of these molecular tools would bring significant results in developing heat tolerance in soybean. In the current review, we have presented a detailed overview of the improvement of heat tolerance in soybean and highlighted future prospective. Further studies are required to investigate different genetic factors governing the heat stress response in soybean. This information would be helpful for future studies focusing on improving heat tolerance in soybean.
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Affiliation(s)
- Guan Jianing
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Gai Yuhong
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Guan Yijun
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Adnan Rasheed
- College of Life Sciences, Changchun Normal University, Changchun, China
| | - Zhao Qian
- College of Life Sciences, Changchun Normal University, Changchun, China
| | - Xie Zhiming
- College of Life Sciences, Baicheng Normal University, Baicheng, China
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Zhang Shuheng
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Zhang Zhuo
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Zhao Zhuo
- College of Life Sciences, Jilin Normal University, Changchun, China
| | - Wang Xiaoxue
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Wei Jian
- College of Life Sciences, Changchun Normal University, Changchun, China
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Melatonin Function and Crosstalk with Other Phytohormones under Normal and Stressful Conditions. Genes (Basel) 2022; 13:genes13101699. [PMID: 36292584 PMCID: PMC9602040 DOI: 10.3390/genes13101699] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/23/2022] Open
Abstract
Melatonin was discovered in plants in the late nineties, but its role, signaling, and crosstalk with other phytohormones remain unknown. Research on melatonin in plants has risen dramatically in recent years and the role of this putative plant hormone under biotic and abiotic stress conditions has been reported. In the present review, we discuss the main functions of melatonin in the growth and development of plants, its role under abiotic stresses, such as water stress (waterlogging and drought), extreme temperature (low and high), salinity, heavy metal, and light-induced stress. Similarly, we also discuss the role of melatonin under biotic stresses (antiviral, antibacterial, and antifungal effects). Moreover, the present review meticulously discusses the crosstalk of melatonin with other phytohormones such as auxins, gibberellic acids, cytokinins, ethylene, and salicylic acid under normal and stressful conditions and reports melatonin receptors and signaling in plants. All these aspects of melatonin suggest that phytomelatonin is a key player in crop improvement and biotic and abiotic stress regulation.
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Irshad A, Rehman RNU, Dubey S, Khan MA, Yang P, Hu T. Rhizobium inoculation and exogenous melatonin synergistically increased thermotolerance by improving antioxidant defense, photosynthetic efficiency, and nitro-oxidative homeostasis in Medicago truncatula. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.945695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Global warming negatively affects plant growth due to the detrimental effects of high temperature-induced heat stress. Rhizobium inoculation (RI) and exogenous melatonin (MT) have shown a positive role in resisting abiotic stress. However, their synergistic effect on avoiding heat-induced damages in Medicago truncatula has not been studied yet. Hence, the objective of the present study was to evaluate the impact of these amendments (RI and MT) to ameliorate the heat damages in Medicago truncatula. The study was comprised of two factors: (1) heat-induced stress: (i) optimum temperature (26 ± 1°C): (23 ± 1°C) (day: night), (ii) moderate heat (35 ± 1°C): (28 ± 1°C), and (iii) severe heat (41 ± 1°C): (35 ± 1°C) for 72 h, and (2) amendments: (i) no RI + no MT (NRI + NMT), (ii) Rhizobium inoculation (RI), (iii) 60 μM melatonin (MT), and (iii) RI + MT. Results showed that the combined application of RI and MT was better than their individual applications, as it prevented heat-induced membrane damages by declining the hydrogen peroxide (34.22% and 29.78%), superoxide anion radical (29.49% and 26.71%), malondialdehyde contents (26.43% and 21.96%), and lipoxygenase activity (44.75% and 25.51%) at both heat stress levels as compared to NRI + NMT. Moreover, RI + MT treated plants showed higher antioxidative and methylglyoxal detoxification enzymes (Gly I and Gly II) activities under heat stress. While, NRI + NMT treated plants showed a higher level of methylglyoxal contents (47.99% and 46.71%) under both levels of heat stress. Relative to NRI + NMT plants, RI + MT pretreated plants exhibited improved heat tolerance as indicated by higher chlorophyll (37.42% and 43.52%), carotenoid contents (32.41% and 47.08%), and photosynthetic rate (42.62% and 64.63%), under moderate and severe heat stress, respectively. Furthermore, RI + MT pretreated plants had considerably higher indole-3 acetic acid and abscisic acid concentrations under moderate (54.02% and 53.92%) and severe (68.36% and 64.61%) heat stress conditions. Similarly, plant dry biomass, NPK uptake, nitric oxide, and nitrate reductase activity were high in RI + MT treated plants, under both levels of stress. Therefore, this study advocates the positive synergistic effect of RI and MT pretreatment against moderate and severe heat-induced stress and for possible maintenance of plant growth under changing scenarios of global warming.
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Kurt-Celebi A, Colak N, Torun H, Dosedělová V, Tarkowski P, Ayaz FA. Exogenous melatonin ameliorates ionizing radiation-induced damage by modulating growth, osmotic adjustment and photosynthetic capacity in wheat seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 187:67-76. [PMID: 35961228 DOI: 10.1016/j.plaphy.2022.07.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
As a multifunctional signal molecule, melatonin (N-acetyl-5-methoxytryptamine) plays many important roles in the regulation of plant growth and development. The effect of melatonin application on enhancing plant stress tolerance has been widely reported, but the ameliorative effect of exogenous melatonin treatment on plants exposed to ionization stress is still unknown. This study investigated the ameliorative effects of two types of melatonin treatment, pre-sowing priming (prMel) and application during growth (ptMel), in wheat (Triticum aestivum L.) seedlings exposed to different radiation doses (100, 200, 300 and 400 Gy) of radioactive cobalt (60Co) gamma rays as dry seeds. The growth parameters, photosynthetic pigments, chlorophyll fluorescence, osmotic potential with soluble sugars, fructans and proline contents were then examined. The results indicated that high doses of ionizing radiation (IR) led to decreases in plant growth, pigment contents, chlorophyll fluorescence ratios and osmotic potential. However, soluble sugar, fructan and proline contents increased under IR stress conditions. Both melatonin applications, but particularly prMel, enhanced the morphological parameters, preserved the photosynthetic machinery and regulated the osmotic adjustment of IR-stressed wheat seedlings. Taken together, the findings show that exogenously applied melatonin, particularly prMel, play a significant role in alleviating IR stress in wheat seedlings.
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Affiliation(s)
- Aynur Kurt-Celebi
- Department of Biology, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey.
| | - Nesrin Colak
- Department of Biology, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey.
| | - Hülya Torun
- Biosystem Engineering, Faculty of Agriculture and Natural Sciences, Düzce University, 81620, Düzce, Turkey.
| | - Věra Dosedělová
- Department of Phytochemistry, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, 78371, Olomouc, Czech Republic.
| | - Petr Tarkowski
- Department of Phytochemistry, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, 78371, Olomouc, Czech Republic; Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Centre of Region Haná for Biotechnological and Agricultural Research, Crop Research Institute, 78371, Olomouc, Czech Republic.
| | - Faik Ahmet Ayaz
- Department of Biology, Faculty of Science, Karadeniz Technical University, 61080, Trabzon, Turkey.
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Cao Y, Du P, Ji J, He X, Zhang J, Shang Y, Liu H, Xu J, Liang B. Ionomic Combined with Transcriptomic and Metabolomic Analyses to Explore the Mechanism Underlying the Effect of Melatonin in Relieving Nutrient Stress in Apple. Int J Mol Sci 2022; 23:ijms23179855. [PMID: 36077267 PMCID: PMC9456084 DOI: 10.3390/ijms23179855] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/18/2022] Open
Abstract
Nutrient stress harms plant growth and yield. Melatonin is a biologically active, multifunctional hormone that relieves abiotic stress in plants. Although previous studies have shown that melatonin plays an important role in improving nutrient-use efficiency, the mechanism of its regulation of nutrient stress remains unclear. In this study, melatonin was applied to apple plants under nutrient stress, and morphological indices, physiological and biochemical indices, and stomatal morphology were evaluated. The response of apple plants to nutrient deficiency and the melatonin mechanism to alleviate nutrient stress were analyzed by combining ionome, transcriptome, and metabolome. The results showed that exogenous melatonin significantly alleviated the inhibitory effect of nutritional stress on the growth of apple plants by regulating stomatal morphology, improving antioxidant enzyme activity, promoting ion absorption, and utilizing and changing the absorption and distribution of minerals throughout the plant. The transcriptome results showed that melatonin alleviated nutrient stress and promoted nutrient absorption and utilization by regulating glutathione metabolism and upregulating some metal ion transport genes. The metabolome results indicated that levels of oxalic acid, L-ascorbic acid, anthocyanins (cyanidin-3-O-galactoside), lignans (lirioresinol A and syringaresinol), and melatonin significantly increased after exogenous melatonin was applied to plants under nutrient stress. These differentially expressed genes and the increase in beneficial metabolites may explain how melatonin alleviates nutrient stress in plants.
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Yin Y, Tian X, He X, Yang J, Yang Z, Fang W. Exogenous melatonin stimulated isoflavone biosynthesis in NaCl-stressed germinating soybean (Glycine max L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:123-131. [PMID: 35671589 DOI: 10.1016/j.plaphy.2022.05.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/21/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Melatonin (MT) has gained increasing attention due to its pleiotropic effects. In this study, the function of exogenous MT on the response to NaCl stress and isoflavone biosynthesis in germinating soybeans was investigated. Results showed the exogenous MT (100 μM) application neutralised the negative effects of NaCl stress (60 mM), induced sprout growth, biomass and fluorescence intensity of intracellular free calcium, decreased malondialdehyde, H2O2 content and fluorescence intensity of O2•-, and enhanced superoxide dismutase, catalase and peroxidas activities of germinating soybeans. Meanwhile, total flavonoids and different forms of isoflavone content were enhanced by MT application, not only companied by the up-regulated relative gene expression of cinnamic acid 4-hydroxylase chalcone reductase, chalcone isomerase 1A, isoflavone reductase and isoflavone synthase 1 that involved in isoflavone biosynthesis, but also increased activities of phenylalanine ammonia lyase and 4-coumarate coenzyme A ligase. Given the evidence from the present study, it's proposed that the exogenous MT could relieve NaCl stress and stimulate isoflavone biosynthesis in germinating soybeans.
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Affiliation(s)
- Yongqi Yin
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Xin Tian
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Xudong He
- Yangzhou Center for Food and Drug Control, Yangzhou, Jiangsu, 225009, PR China
| | - Jia Yang
- Yangzhou Center for Food and Drug Control, Yangzhou, Jiangsu, 225009, PR China
| | - Zhengfei Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China
| | - Weiming Fang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, PR China.
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Memory of plants: present understanding. THE NUCLEUS 2022. [DOI: 10.1007/s13237-022-00399-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Zhang YJ, Pang YB, Wang XY, Jiang YH, Herrera-Balandrano DD, Jin Y, Wang SY, Laborda P. Exogenous genistein enhances soybean resistance to Xanthomonas axonopodis pv. glycines. PEST MANAGEMENT SCIENCE 2022; 78:3664-3675. [PMID: 35611815 DOI: 10.1002/ps.7009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/08/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Xanthomonas axonopodis pv. glycines (Xag) is the causal agent of bacterial pustule disease and results in enormous losses in soybean production. Although isoflavones are known to be involved in soybean resistance against pathogen infection, the effects of exogenous isoflavones on soybean plants remain unexplored. RESULTS Irrigation of soybean plants with isoflavone genistein inhibited plant growth for short periods, probably by inhibiting the tyrosine (brassinosteroids) kinase pathway, and increased disease resistance against Xag. The number of lesions was reduced by 59%-63% when applying 50 μg ml-1 genistein. The effects on disease resistance were observed for 15 days after treatment. Genistein also enhanced the disease resistance of soybean against the fungal pathogen Sclerotinia sclerotiorum. Exogenous genistein increased antioxidant capacity, decreased H2 O2 level and promoted the accumulation of phenolics in Xag-infected soybean leaves. Exogenous genistein reduced the amounts of endogenous daidzein, genistein and glycitein and increased the concentration of genistin, which was found to show strong antibacterial activity against the pathogen and to reduce the expression of virulence factor yapH, and flagella formation gene flgK. The expression of several soybean defense genes, such as chalcone isomerase, glutathione S-transferase and 1-aminocyclopropane-1-carboxylate oxidase 1, was upregulated after genistein treatment. CONCLUSIONS The effects of exogenous genistein on soybean plants were examined for the first time, revealing new insights into the roles of isoflavones in soybean defense and demonstrating that irrigation with genistein can be a suitable method to induce disease resistance in soybean plants. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yun-Jiao Zhang
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | - Yi-Bo Pang
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | - Xin-Yi Wang
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | - Yong-Hui Jiang
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | | | - Yan Jin
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | - Su-Yan Wang
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
| | - Pedro Laborda
- School of Life Sciences, Nantong University, Nantong, People's Republic of China
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Wei L, Zhao H, Wang B, Wu X, Lan R, Huang X, Chen B, Chen G, Jiang C, Wang J, Liu Y, Zheng Q. Exogenous Melatonin Improves the Growth of Rice Seedlings by Regulating Redox Balance and Ion Homeostasis Under Salt Stress. JOURNAL OF PLANT GROWTH REGULATION 2022; 41:2108-2121. [PMID: 0 DOI: 10.1007/s00344-021-10417-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 06/05/2021] [Indexed: 05/26/2023]
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Wang G, Xing M, Hu T, Ji M, Li X, Amombo E, Shao A, Xu X, Fu J. Photosystem II photochemical adjustment of tall fescue against heat stress after melatonin priming. JOURNAL OF PLANT PHYSIOLOGY 2022; 275:153758. [PMID: 35797828 DOI: 10.1016/j.jplph.2022.153758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
High temperature is the key factor restricting the survival of tall fescue. Extreme summer hot events arise from global warming further increases this risk. As a candidate chemical priming agent previously reported, melatonin offers innovative solution to improve heat resistance of plants. However, the mechanistic insight remains ill-defined, especially in PSII photochemical reactions. In this study, we investigated the effect of melatonin priming on photosynthetic electron transport of PS II against heat stress in tall fescue. Results showed that melatonin weakened the electron transfer efficiency of PS II per light reaction center (RC) at donor-side and receptor-side, while increased the number of RC per unit cross-sectional area. The quenching analysis further revealed that the proportion of photochemical quenching, Y(II), increased by melatonin. Considering the enriched chl a and nonevent oxidative damage, we argued that inefficient but more abundant RC introduced by melatonin protected the PSII from oxidative damage under heat stress. Notably, these effects were dependent on melatonin concentration but not temperature, an optimal application concentration (50 μmol/L) was uncovered. Besides, melatonin decreased NPQ and encouraged reverse reaction of the xanthophyll cycle. We proposed that melatonin prevents the production of excessive excitation energy. In brief, melatonin plays a distinctive role in regulating photoelectric conversion of PSII of tall fescue under heat stress, increased its survival rate after heat shock.
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Affiliation(s)
- Guangyang Wang
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - Meiling Xing
- China Agricultural University, Yantai, Shandong, 264670, China
| | - Tao Hu
- Lanzhou University, Lanzhou City, GanSu, 730000, China
| | - Mingxia Ji
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - Xiaoning Li
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - Eric Amombo
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - An Shao
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - Xiao Xu
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China
| | - Jinmin Fu
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, Shandong, 264025, China.
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Wei Y, Cheng X, Reiter RJ, Shi H. Journal of Pineal Research guidelines for authors: Melatonin studies using plants. J Pineal Res 2022; 73:e12807. [PMID: 35621017 DOI: 10.1111/jpi.12807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/13/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Yunxie Wei
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), College of Tropical Crops, Hainan University, Haikou, Hainan Province, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan Province, China
| | - Xiao Cheng
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), College of Tropical Crops, Hainan University, Haikou, Hainan Province, China
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, Long School of Medicine, San Antonio, Texas, USA
| | - Haitao Shi
- Key Laboratory of Biotechnology of Salt Tolerant Crops of Hainan Province, Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources (Provincial Ministry Building State Key Laboratory Breeding Base), College of Tropical Crops, Hainan University, Haikou, Hainan Province, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan Province, China
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65
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Wang J, Lv P, Yan D, Zhang Z, Xu X, Wang T, Wang Y, Peng Z, Yu C, Gao Y, Duan L, Li R. Exogenous Melatonin Improves Seed Germination of Wheat ( Triticum aestivum L.) under Salt Stress. Int J Mol Sci 2022; 23:8436. [PMID: 35955571 PMCID: PMC9368970 DOI: 10.3390/ijms23158436] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 01/27/2023] Open
Abstract
Melatonin (MT) can effectively reduce oxidative damage induced by abiotic stresses such as salt in plants. However, the effects of MT on physiological responses and molecular regulation during wheat germination remains largely elusive. In this study, the response of wheat seeds to MT under salt stress during germination was investigated at physiological and transcriptome levels. Our results revealed that application of MT significantly reduced the negative influence of salt stress on wheat seed germination. The oxidative load was reduced by inducing high activities of antioxidant enzymes. In parallel, the content of gibberellin A3 (GA3) and jasmonic acid (JA) increased in MT-treated seedling. RNA-seq analysis demonstrated that MT alters oxidoreductase activity and phytohormone-dependent signal transduction pathways under salt stress. Weighted correlation network analysis (WGCNA) revealed that MT participates in enhanced energy metabolism and protected seeds via maintained cell morphology under salt stress during wheat seed germination. Our findings provide a conceptual basis of the MT-mediated regulatory mechanism in plant adaptation to salt stress, and identify the potential candidate genes for salt-tolerant wheat molecular breeding.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Liusheng Duan
- Beijing Key Laboratory of New Technology in Agricultural Application, National Experimental Teaching Demonstration Center for Plant Production, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (P.L.); (D.Y.); (Z.Z.); (X.X.); (T.W.); (Y.W.); (Z.P.); (C.Y.); (Y.G.)
| | - Runzhi Li
- Beijing Key Laboratory of New Technology in Agricultural Application, National Experimental Teaching Demonstration Center for Plant Production, Beijing University of Agriculture, Beijing 102206, China; (J.W.); (P.L.); (D.Y.); (Z.Z.); (X.X.); (T.W.); (Y.W.); (Z.P.); (C.Y.); (Y.G.)
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66
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Zhang G, Yan Y, Zeng X, Wang Y, Zhang Y. Quantitative Proteomics Analysis Reveals Proteins Associated with High Melatonin Content in Barley Seeds under NaCl-Induced Salt Stress. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8492-8510. [PMID: 35759742 DOI: 10.1021/acs.jafc.2c00466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Soil salinization limits hull-less barley cultivation in the Qinghai-Tibet Plateau of China. However, some wild hull-less barley seeds accumulate high melatonin (MEL) during germination with improved salt tolerance; but the mechanism of melatonin-mediated salt tolerance in hull-less barley is not well understood at the protein level. This study investigated proteome changes resulting in high melatonin content in germinating hull-less barley seeds under high saline conditions. The proteome profiles of seed treatment with 240 mM-NaCl (N), water (H), and control (C) taken 7 days after germination were compared using the TMT-based quantitative proteomics. Our results indicate that salt stress-induced global changes in the proteomes of germinating hull-less barley seeds, altering the expression and abundance of proteins related to cell cycle and control, carbohydrate and energy metabolism, and amino acid transport and metabolism including proteins related to melatonin production. Furthermore, proteins associated with cellular redox homeostasis, osmotic stress response, and secondary metabolites derived primarily from amino acid metabolism, purine degradation, and shikimate pathways increased significantly in abundance and may contribute to the high melatonin content in seeds under salt stress. Consequently, triggering the robust response to oxidative stress occasioned by the NaCl-induced salt stress, improved seed germination and strong adaptation to salt stress.
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Affiliation(s)
- Guoqiang Zhang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet 850002, China
| | - Yingying Yan
- Institute of Agricultural Products Processing & Food Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet 850002, China
| | - Xingquan Zeng
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet 850002, China
| | - Yulin Wang
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet 850002, China
| | - Yuhong Zhang
- Institute of Agricultural Products Processing & Food Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, Tibet 850002, China
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67
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Li S, Wang Y, Gao X, Lan J, Fu B. Comparative Physiological and Transcriptome Analysis Reveal the Molecular Mechanism of Melatonin in Regulating Salt Tolerance in Alfalfa ( Medicago sativa L.). FRONTIERS IN PLANT SCIENCE 2022; 13:919177. [PMID: 35909721 PMCID: PMC9326453 DOI: 10.3389/fpls.2022.919177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
As a high-quality legume forage, alfalfa is restricted by various abiotic stresses during its growth and development. Melatonin is a multifunctional signaling molecule that involves in plant defense against multiple stresses. However, little is known about its downstream signaling pathway and regulatory mechanisms in salt stress of alfalfa. In this study, we investigated the protective effects and key regulatory pathways of melatonin on alfalfa under salt tolerance. The results showed that melatonin promoted the growth of alfalfa seedlings under salt stress, as demonstrated by higher plant height, leaf area, and fresh weight. Melatonin treatment resulted in an increase in the photosynthetic capacity and starch content of alfalfa. Moreover, melatonin decreased cell membrane damage and reactive oxygen species (ROS) accumulation by enhancing antioxidant defense activity under salt stress conditions. Transcriptome sequencing (RNA-seq) analysis revealed that melatonin mainly induced the transcription of genes involved in Ca2+ signaling (cyclic nucleotide gated channel, CNGCs; cam modulin/calmodulin-like protein, CAM/CMLs and calcium-dependent protein kinase, CDPKs), starch and sucrose metabolism (α-amylase, AMYs; β-amylase, BAMs; starch synthase, SSs and sucrose synthase, SUSs), plant hormone signal transduction (auxin/indole acetic acid protein, AUX/IAAs; ABA receptor, PYL4; protein phosphatase 2C, PP2Cs; scarecrow-like protein, SCLs and ethylene-responsive transcription factor 1B, ERF1B), and key transcription factors (C3Hs, MYBs, ERFs, and WRKYs). Specifically, we focused on starch and sucrose metabolism and plant hormone signal transduction pathways. The interactions between melatonin and other phytohormones occurred via regulation of the expression of genes involved in hormone signaling pathways. In addition, melatonin increased the contents of endogenous melatonin, auxin, gibberellic acid (GA3), salicylic acid, brassinosteroids, and ethylene, while decreasing the abscisic acid content under salt stress. In summary, this study established a regulatory network for melatonin-induced key signaling pathways and functional genes under salt stress and provided a theoretical basis for salt tolerance breeding in alfalfa.
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Affiliation(s)
- Shuxia Li
- School of Agriculture, Ningxia University, Yinchuan, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, China
| | - Yuan Wang
- School of Agriculture, Ningxia University, Yinchuan, China
| | - Xueqin Gao
- School of Agriculture, Ningxia University, Yinchuan, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, China
| | - Jian Lan
- School of Agriculture, Ningxia University, Yinchuan, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, China
| | - Bingzhe Fu
- School of Agriculture, Ningxia University, Yinchuan, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, China
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68
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Yang G, Wei X, Fang Z. Melatonin Mediates Axillary Bud Outgrowth by Improving Nitrogen Assimilation and Transport in Rice. FRONTIERS IN PLANT SCIENCE 2022; 13:900262. [PMID: 35909754 PMCID: PMC9326366 DOI: 10.3389/fpls.2022.900262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Melatonin plays an important role in plant resistance to biotic and abiotic stresses. However, whether melatonin is involved in the regulation of plant architecture, such as the formation of axillary bud outgrowth or tillering, in rice remains unknown. Here, we found that different concentrations of melatonin influenced axillary bud outgrowth in rice, and moderate melatonin concentrations also alleviated the inhibition of axillary bud outgrowth in the presence of high concentrations of basic amino acids lysine and arginine. Furthermore, transcriptome analysis demonstrated that genes involved in nitrogen metabolism and phytohormone signal transduction pathways may affect axillary bud outgrowth, which is regulated by melatonin. We determined that the differentially expressed genes glutamine synthetase OsGS2 and amino acid transporter OsAAP14, which are involved in nitrogen metabolism and are regulated by melatonin and basic amino acids, were the key regulators of axillary bud outgrowth in rice. In addition, we validated the functions of OsGS2 and OsAAP14 using rice transgenic plants with altered axillary bud outgrowth and tillers. Taken together, these results suggest that melatonin mediates axillary bud outgrowth by improving nitrogen assimilation and transport in rice.
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Affiliation(s)
- Guo Yang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang, China
| | - Xilin Wei
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang, China
| | - Zhongming Fang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang, China
- Center of Applied Biotechnology, Wuhan University of Bioengineering, Wuhan, China
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69
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Xiao R, Han Q, Liu Y, Zhang X, Hao Q, Chai Q, Hao Y, Deng J, Li X, Ji H. Melatonin Attenuates the Urea-Induced Yields Improvement Through Remodeling Transcriptome and Rhizosphere Microbial Community Structure in Soybean. Front Microbiol 2022; 13:903467. [PMID: 35875554 PMCID: PMC9301482 DOI: 10.3389/fmicb.2022.903467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
Foliar application of nitrogen to enhance crop productivity has been widely used. Melatonin is an effective regulator in promoting plant growth. However, the effects of melatonin and the combination of melatonin and nitrogen on soybeans yields production remain largely unknown. In this study, a field experiment was conducted to evaluate the effects and mechanisms of spraying leaves with melatonin and urea on soybeans. Foliar application of urea significantly increased soybean yields and melatonin did not affect the yields, while combination of melatonin and urea significantly reduced the yields compared to the application of urea alone. A leaf transcriptional profile was then carried out to reveal the underlying mechanism and found that foliar spraying of urea specifically induced the expression of genes related to amino acid transport and nitrogen metabolism. However, foliar application of melatonin significantly changed the transcriptional pattern established by urea application and increased the expression of genes related to abiotic stress signaling pathways. The effects of melatonin and urea treatment on soil microbiome were also investigated. Neither melatonin nor urea application altered the soil microbial alpha diversity, but melatonin application changed rhizosphere microbial community structure, whereas the combination of melatonin and urea did not. Melatonin or urea application altered the abundance of certain taxa. The number of taxa changed by melatonin treatment was higher than urea treatment. Collectively, our results provide new and valuable insights into the effects of foliar application of melatonin to urea and further show that melatonin exerts strong antagonistic effects on urea-induced soybean yields, gene expression and certain soil microorganisms.
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Affiliation(s)
- Renhao Xiao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Qin Han
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xuehai Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Qingnan Hao
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Qingqing Chai
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yongfang Hao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Junbo Deng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xia Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hongtao Ji
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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70
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Iqbal R, Khan T. Application of exogenous melatonin in vitro and in planta: a review of its effects and mechanisms of action. Biotechnol Lett 2022; 44:933-950. [PMID: 35751787 DOI: 10.1007/s10529-022-03270-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
Melatonin is a natural indolamine that regulates many physiological functions in plants. The most prominent role of melatonin in plants has been its ability to work as an anti-stressor agent. Exogenous melatonin can prevent cell death and promote cell proliferation through its antioxidant properties, enhancement of polyamine biosynthesis, and the ability to shift cell metabolism in case of stressors like sugar starvation. Melatonin scavenges reactive oxygen species and thus preventing damage to cell membranes and other organelles. Its application in different plant culture systems reveals its important physiological and biochemical roles during the growth and development of these cultures. It has been observed that the exogenous melatonin protects callus culture, reduces cold-induced apoptosis in cell suspension, and stimulates adventitious and lateral roots formation. This review presents the physiological and biochemical effects of exogenous melatonin on in vitro culture systems, including its impact on biomass accumulation, growth, and development of plants.
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Affiliation(s)
- Reema Iqbal
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, 18800, Pakistan.,Institute of Biotechnology and Genetic Engineering, University of Agriculture, Peshawar, Pakistan
| | - Tariq Khan
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, 18800, Pakistan.
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71
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Yang N, Han MH, Teng RM, Yang YZ, Wang YH, Xiong AS, Zhuang J. Exogenous Melatonin Enhances Photosynthetic Capacity and Related Gene Expression in A Dose-Dependent Manner in the Tea Plant ( Camellia sinensis (L.) Kuntze). Int J Mol Sci 2022; 23:ijms23126694. [PMID: 35743137 PMCID: PMC9223723 DOI: 10.3390/ijms23126694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 12/10/2022] Open
Abstract
The enhancement of photosynthesis of tea leaves can increase tea yield. In order to explore the regulation mechanism of exogenous melatonin (MT) on the photosynthetic characteristics of tea plants, tea variety 'Zhongcha 108' was used as the experimental material in this study. The effects of different concentrations (0, 0.2, 0.3, 0.4 mM) of melatonin on the chlorophyll (Chl) content, stomatal opening, photosynthetic and fluorescence parameters, antioxidant enzyme activity, and related gene expression of tea plants were detected and analyzed. The results showed that under 0.2-mM MT treatment, chlorophyll (Chl) content, photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), and transpiration rate (Tr) improved, accompanied by a decrease in stomata density and increase in stomata area. Zero point two millimolar MT increased Chl fluorescence level and superoxide dismutase (SOD) activity, and reduced hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents, indicating that MT alleviated PSII inhibition and improved photochemical efficiency. At the same time, 0.2 mM MT induced the expression of genes involved in photosynthesis and chlorophyll metabolism to varying degrees. The study demonstrated that MT can effectively enhance the photosynthetic capacity of tea plants in a dose-dependent manner. These results may promote a comprehensive understanding of the potential regulatory mechanism of exogenous MT on photosynthesis in tea plants.
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Affiliation(s)
- Ni Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Miao-Hua Han
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Rui-Min Teng
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Ya-Zhuo Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Ya-Hui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.-H.W.); (A.-S.X.)
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.-H.W.); (A.-S.X.)
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
- Correspondence:
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72
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Xie X, Han Y, Yuan X, Zhang M, Li P, Ding A, Wang J, Cheng T, Zhang Q. Transcriptome Analysis Reveals that Exogenous Melatonin Confers Lilium Disease Resistance to Botrytis elliptica. Front Genet 2022; 13:892674. [PMID: 35774503 PMCID: PMC9237519 DOI: 10.3389/fgene.2022.892674] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
Leaf blight, caused by Botrytis elliptica (Berk.) Cooke, is a devastating disease that limits the production of Lilium in China and in other countries worldwide. Numerous studies have indicated that plants have evolved sophisticated and effective signal transduction and defense-related pathways in response to pathogen invasion. Recently, particular attention has been given to the action(s) of melatonin in plants in response to biotic stress, and the role of melatonin in plant–pathogen interactions has also been discussed. In this study, RNA-seq was applied to analyze the transcriptomic changes in Lilium leaves that were pre-treated and post-treated with melatonin after B. elliptica infection for 0, 12, 24, 36, and 72 h and then compare those changes with those of the control. Treatment with exogenous melatonin and infection with B. elliptica caused differential expression of a large number of genes in Lilium leaves. KEGG pathway analysis showed that, after melatonin treatment, the defense-related DEGs were mainly enriched in plant–pathogen interactions, plant hormone signal transduction, MAPK signaling pathways, phenylpropanoid biosynthesis, and phenylalanine metabolism. RT–qPCR was used to verify the expression changes of 12 DEGs, the results of which were consistent with the RNA-seq analysis results. The expression of DEGs related to the MAPK pathway were significantly different between the MB group and the HB group, suggesting that, via the MAPK signaling cascade, melatonin may play a role in the disease resistance of Lilium to B. elliptica. This study provides a new perspective and information for molecular-based breeding of Lilium disease resistance.
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Affiliation(s)
- Xuehua Xie
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Yu Han
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Xi Yuan
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Man Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Ping Li
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Aiqin Ding
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Jia Wang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Tangren Cheng
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Qixiang Zhang
- Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Forestry University, Beijing, China
- National Engineering Research Center for Floriculture, Beijing Forestry University, Beijing, China
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Forestry University, Beijing, China
- Engineering Research Center of Landscape Environment of Ministry of Education, Beijing Forestry University, Beijing, China
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Beijing Forestry University, Beijing, China
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
- *Correspondence: Qixiang Zhang,
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73
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Martínez-Lorente SE, Pardo-Hernández M, Martí-Guillén JM, López-Delacalle M, Rivero RM. Interaction between Melatonin and NO: Action Mechanisms, Main Targets, and Putative Roles of the Emerging Molecule NOmela. Int J Mol Sci 2022; 23:ijms23126646. [PMID: 35743084 PMCID: PMC9223470 DOI: 10.3390/ijms23126646] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/07/2022] [Accepted: 06/13/2022] [Indexed: 12/15/2022] Open
Abstract
Melatonin (MEL), a ubiquitous indolamine molecule, has gained interest in the last few decades due to its regulatory role in plant metabolism. Likewise, nitric oxide (NO), a gasotransmitter, can also affect plant molecular pathways due to its function as a signaling molecule. Both MEL and NO can interact at multiple levels under abiotic stress, starting with their own biosynthetic pathways and inducing a particular signaling response in plants. Moreover, their interaction can result in the formation of NOmela, a very recently discovered nitrosated form of MEL with promising roles in plant physiology. This review summarizes the role of NO and MEL molecules during plant development and fruit ripening, as well as their interactions. Due to the impact of climate-change-related abiotic stresses on agriculture, this review also focuses on the role of these molecules in mediating abiotic stress tolerance and the main mechanisms by which they operate, from the upregulation of the entire antioxidant defense system to the post-translational modifications (PTMs) of important molecules. Their individual interaction and crosstalk with phytohormones and H2S are also discussed. Finally, we introduce and summarize the little information available about NOmela, an emerging and still very unknown molecule, but that seems to have a stronger potential than MEL and NO separately in mediating plant stress response.
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Affiliation(s)
- Sara E. Martínez-Lorente
- Center of Edaphology and Applied Biology of Segura CEBAS-CSIC, Campus Universitario Espinardo, 30100 Murcia, Spain; (S.E.M.-L.); (M.P.-H.); (J.M.M.-G.); (M.L.-D.)
| | - Miriam Pardo-Hernández
- Center of Edaphology and Applied Biology of Segura CEBAS-CSIC, Campus Universitario Espinardo, 30100 Murcia, Spain; (S.E.M.-L.); (M.P.-H.); (J.M.M.-G.); (M.L.-D.)
| | - José M. Martí-Guillén
- Center of Edaphology and Applied Biology of Segura CEBAS-CSIC, Campus Universitario Espinardo, 30100 Murcia, Spain; (S.E.M.-L.); (M.P.-H.); (J.M.M.-G.); (M.L.-D.)
- Faculty of Biology, Department of Plant Physiology, University of Murcia, Campus Universitario Espinardo, 30100 Murcia, Spain
| | - María López-Delacalle
- Center of Edaphology and Applied Biology of Segura CEBAS-CSIC, Campus Universitario Espinardo, 30100 Murcia, Spain; (S.E.M.-L.); (M.P.-H.); (J.M.M.-G.); (M.L.-D.)
| | - Rosa M. Rivero
- Center of Edaphology and Applied Biology of Segura CEBAS-CSIC, Campus Universitario Espinardo, 30100 Murcia, Spain; (S.E.M.-L.); (M.P.-H.); (J.M.M.-G.); (M.L.-D.)
- Correspondence: ; Tel.: +34-968396200 (ext. 445379)
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Jalili S, Ehsanpour AA, Javadirad SM. The role of melatonin on caspase-3-like activity and expression of the genes involved in programmed cell death (PCD) induced by in vitro salt stress in alfalfa (Medicago sativa L.) roots. BOTANICAL STUDIES 2022; 63:19. [PMID: 35689706 PMCID: PMC9188634 DOI: 10.1186/s40529-022-00348-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Alfalfa (Medicago sativa L.) is the most cultivated forage plant as a model in legumes. Salinity stress due to Na+ toxicity causes severe, oxidative stress as a main reason for program cell death (PCD) in plants. Melatonin application can increase plant productivity in response to diverse stressors via modulating plant antioxidant mechanisms and PCD inhibition in plants. RESULTS Alfalfa roots were subjected to different concentrations of in vitro salinity supplemented with melatonin (0.1, 10 and 15 µM) for ten days. Application of melatonin under salinity stress reduced ROS, H2O2 and [Formula: see text] content and showed a dramatic impact on TTC reduction and augmented cell viability. Interestingly, melatonin inhibited caspase 3-like protease activity and could decrease DNA fragmentation induced by salinity while increased expression of anti-apoptotic genes BI-1, UCP1-UCP2 involved in PCD pathway. In contrast, in 300 mM salinity, γVPE gene as a proapoptotic of PCD down-regulated significantly. CONCLUSIONS For the first time, present data showed that, melatonin plays a major function in preventing PCD in alfalfa root meristem cells. We attempted to offer a mechanism for the function of melatonin as an anti-apoptotic agent by demonstrating significant actions of melatonin on mitochondria proteins, such as UCPs, in a manner similar to animal cells.
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Affiliation(s)
- Shabnam Jalili
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Ali Akbar Ehsanpour
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - Seyed Morteza Javadirad
- Department of Cell and Molecular Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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75
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Teng Z, Zheng W, Jiang S, Hong SB, Zhu Z, Zang Y. Role of melatonin in promoting plant growth by regulating carbon assimilation and ATP accumulation. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 319:111276. [PMID: 35487649 DOI: 10.1016/j.plantsci.2022.111276] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/23/2022] [Accepted: 03/27/2022] [Indexed: 05/27/2023]
Abstract
Melatonin (MT) is a phytohormone important in mediating diverse plant growth processes. In this study, we performed transcriptomic, qRT-PCR, physiological and biochemical analyses of Brassica rapa seedlings in order to understand how MT promotes plant growth. The results showed that exogenous MT increased the rate of cyclic electron flow around photosystem (PS) I, fluorescence quantum yield, and electron transport efficiency between PSII and PSI to promote the vegetative growth of B. rapa seedlings without affecting oxidative stress level, as compared to control. However, MT treatment significantly reduced photosynthetic rate (Pn), transpiration rate (Tr), and stomatal conductance (Gs) by 2.25-, 1.23- and 3.50-fold at 0.05 level, respectively. This occurred in parallel with the down-regulation of the genes for carbon fixation in photosynthetic organisms in a KEGG pathway enrichment. More accelerated plant growth despite the reduced photosynthesis rate and the enhanced electron transport rate suggested that NADPH and adenosine triphosphate (ATP) were preferentially diverted into other anabolic reactions than the Calvin cycle upon MT application. MT treatment increased ATP level and facilitated carbon assimilation into primary metabolism that led to a significant enhancement of soluble protein, sucrose, and fructose, but a significant decrease in glucose content. MT-induced carbon assimilation into primary metabolism was driven by up-regulation of the genes for glutathione metabolism, Krebs cycle, ribosome, and DNA replication in a KEGG pathway enrichment, as well as down-regulation of the genes for secondary metabolites. Our results provide an insight into MT-mediated metabolic adjustments triggered by coordinate changes in a wide range of gene expression profiles to help improve the plant functionality.
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Affiliation(s)
- Zhiyan Teng
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&~F University, Hangzhou, Zhejiang 311300, China
| | - Weiwei Zheng
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&~F University, Hangzhou, Zhejiang 311300, China
| | - Shufang Jiang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&~F University, Hangzhou, Zhejiang 311300, China
| | - Seung-Beom Hong
- Department of Biotechnology, University of Houston Clear Lake, Houston, TX 77058-1098, USA
| | - Zhujun Zhu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&~F University, Hangzhou, Zhejiang 311300, China
| | - Yunxiang Zang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, College of Horticulture Science, Zhejiang A&~F University, Hangzhou, Zhejiang 311300, China.
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Yu X, Liang L, Xie Y, Tang Y, Tan H, Zhang J, Lin L, Sun B, Huang Z, Liu J, Li X, Tu L, Li H. Comparative Analysis of Italian Lettuce ( Lactuca sativa L. var. ramose) Transcriptome Profiles Reveals the Molecular Mechanism on Exogenous Melatonin Preventing Cadmium Toxicity. Genes (Basel) 2022; 13:955. [PMID: 35741717 PMCID: PMC9223142 DOI: 10.3390/genes13060955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 01/09/2023] Open
Abstract
Cadmium (Cd) accumulation in lettuce causes a large amount of yield loss during industry. Although many studies report that exogenous melatonin helps to alleviate the Cd stress of lettuce, the molecular mechanism for how plant tissue responds to Cd treatment is unclear. Herein, we applied both PacBio and Illumina techniques for Italian lettuce under different designed treatments of Cd and melatonin, aiming to reveal the potential molecular pathway of the response to Cd stress as well as the how the pre-application of exogenous melatonin affect this process. This result reveals that the root has the biggest expression pattern shift and is a more essential tissue to respond to both Cd and melatonin treatments than leaves. We reveal the molecular background of the Cd stress response in prospects of antioxidant and hormone signal transduction pathways, and we found that their functions are diverged and specifically expressed in tissues. We also found that candidate genes related to melatonin detoxify during Cd stress. Our study sheds new light for future research on how melatonin improves the cadmium resistance of lettuce and also provide valuable data for lettuce breeding.
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Affiliation(s)
- Xuena Yu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
- College of Horticulture, Northwest A & F University, Xianyang 712100, China
| | - Le Liang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
| | - Yongdong Xie
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (Y.X.); (H.T.); (J.L.)
| | - Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.T.); (L.L.)
| | - Huaqiang Tan
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (Y.X.); (H.T.); (J.L.)
| | - Jianwei Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.T.); (L.L.)
| | - Bo Sun
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
| | - Zhi Huang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
| | - Ji Liu
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (Y.X.); (H.T.); (J.L.)
| | - Xiaomei Li
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (L.L.); (J.Z.); (B.S.); (Z.H.); (X.L.)
- Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan, Chengdu 610300, China
| | - Lihua Tu
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China;
| | - Huanxiu Li
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China; (Y.T.); (L.L.)
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77
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Gu Q, Xiao Q, Chen Z, Han Y. Crosstalk between Melatonin and Reactive Oxygen Species in Plant Abiotic Stress Responses: An Update. Int J Mol Sci 2022; 23:ijms23105666. [PMID: 35628474 PMCID: PMC9143051 DOI: 10.3390/ijms23105666] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023] Open
Abstract
Melatonin acts as a multifunctional molecule that takes part in various physiological processes, especially in the protection against abiotic stresses, such as salinity, drought, heat, cold, heavy metals, etc. These stresses typically elicit reactive oxygen species (ROS) accumulation. Excessive ROS induce oxidative stress and decrease crop growth and productivity. Significant advances in melatonin initiate a complex antioxidant system that modulates ROS homeostasis in plants. Numerous evidences further reveal that melatonin often cooperates with other signaling molecules, such as ROS, nitric oxide (NO), and hydrogen sulfide (H2S). The interaction among melatonin, NO, H2S, and ROS orchestrates the responses to abiotic stresses via signaling networks, thus conferring the plant tolerance. In this review, we summarize the roles of melatonin in establishing redox homeostasis through the antioxidant system and the current progress of complex interactions among melatonin, NO, H2S, and ROS in higher plant responses to abiotic stresses. We further highlight the vital role of respiratory burst oxidase homologs (RBOHs) during these processes. The complicated integration that occurs between ROS and melatonin in plants is also discussed.
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Affiliation(s)
- Quan Gu
- School of Biological Food and Environment, Hefei University, Hefei 230601, China; (Q.G.); (Q.X.)
| | - Qingqing Xiao
- School of Biological Food and Environment, Hefei University, Hefei 230601, China; (Q.G.); (Q.X.)
| | - Ziping Chen
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
- Correspondence: (Z.C.); (Y.H.)
| | - Yi Han
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Correspondence: (Z.C.); (Y.H.)
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78
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Wang H, Ren C, Cao L, Zhao Q, Jin X, Wang M, Zhang M, Yu G, Zhang Y. Exogenous Melatonin Modulates Physiological Response to Nitrogen and Improves Yield in Nitrogen-Deficient Soybean ( Glycine max L. Merr.). FRONTIERS IN PLANT SCIENCE 2022; 13:865758. [PMID: 35651760 PMCID: PMC9149585 DOI: 10.3389/fpls.2022.865758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/04/2022] [Indexed: 06/15/2023]
Abstract
Melatonin (MT) is a key plant growth regulator. To investigate its effect at different growth stages on the yield of soybean under nitrogen deficiency, 100 μM MT was applied to soybean supplemented with zero nitrogen (0N), low nitrogen (LN), and control nitrogen (CK) levels, during the plant vegetative growth (V3) and filling (R5) stages. This study revealed that the application of MT mainly enhanced the nitrogen fixation of plants by increasing the root nodule number and provided more substrates for glutamine synthetase (GS) under 0N supply. However, under the LN supply, more ammonium was assimilated through the direct promotion of nitrate reductase (NR) activity by MT. MT enhanced the activity of ammonium-assimilation-related enzymes, such as GOGAT and GDH, and the expression of their coding genes, promoted the synthesis of chlorophyll and amino acids, and increased the photosynthetic capacity under nitrogen deficiency. Exogenous MT directly upregulated the expression of genes involved in the photosynthetic system and stimulated dry-matter accumulation. Thus, MT alleviated the inhibitory effect of nitrogen deficiency on soybean yield. This mitigation effect was better when MT was applied at the V3 stage, and the seed weight per plant increased by 16.69 and 12.20% at 0N and LN levels, respectively. The results of this study provide a new theoretical basis to apply MT in agriculture to improve the resilience of soybean plants to low nitrogen availability.
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Affiliation(s)
- Huamei Wang
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Chunyuan Ren
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Liang Cao
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qiang Zhao
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Xijun Jin
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Mengxue Wang
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Mingcong Zhang
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Gaobo Yu
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yuxian Zhang
- Key Laboratory of Soybean Mechanized Production, Ministry of Agriculture and Rural Affairs, Heilongjiang Bayi Agricultural University, Daqing, China
- National Coarse Cereals Engineering Technology Center, Daqing, China
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79
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Harish E, Osherov N. Fungal Priming: Prepare or Perish. J Fungi (Basel) 2022; 8:jof8050448. [PMID: 35628704 PMCID: PMC9145559 DOI: 10.3390/jof8050448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/21/2022] [Accepted: 04/21/2022] [Indexed: 01/06/2023] Open
Abstract
Priming (also referred to as acclimation, acquired stress resistance, adaptive response, or cross-protection) is defined as an exposure of an organism to mild stress that leads to the development of a subsequent stronger and more protective response. This memory of a previously encountered stress likely provides a strong survival advantage in a rapidly shifting environment. Priming has been identified in animals, plants, fungi, and bacteria. Examples include innate immune priming and transgenerational epigenetic inheritance in animals and biotic and abiotic stress priming in plants, fungi, and bacteria. Priming mechanisms are diverse and include alterations in the levels of specific mRNAs, proteins, metabolites, and epigenetic changes such as DNA methylation and histone acetylation of target genes.
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80
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Ji R, Min J, Wang Y, Kronzucker HJ, Shi W. The Role of Plant Growth Regulators in Modulating Root Architecture and Tolerance to High-Nitrate Stress in Tomato. FRONTIERS IN PLANT SCIENCE 2022; 13:864285. [PMID: 35463444 PMCID: PMC9023760 DOI: 10.3389/fpls.2022.864285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Plant growth regulators are known to exert strong influences on plant performance under abiotic stress, including exposure to high nitrate, as occurs commonly in intensive vegetable production. However, direct comparative evaluations of growth regulators under otherwise identical conditions in major crop species are scarce. In this study, tomato (Solanum lycopersicum L.) was used as a model crop, and the roles of four common exogenously applied plant growth regulators (MT, melatonin; SA, salicylic acid; HA, humic acid; SNP, sodium nitroprusside) in regulating crop growth were studied under high-nitrate stress. We provide a particular focus on root system architecture and root physiological responses. Our data show that all four growth regulators improve tomato tolerance under high nitrate, but that this occurs to differing extents and via differing mechanisms. Optimal concentrations of MT, SA, HA, and SNP were 50 μmol L-1, 25 μmol L-1, 25 mg L-1, and 50 μmol L-1, respectively. MT and SNP produced the strongest effects. MT enhanced root growth while SNP enhanced above-ground growth. Growth of coarse and thin lateral roots was significantly improved. Furthermore, an enhancement of root vitality and metabolism, improved integrity of root cell membranes, and an increase in antioxidant enzyme activities were found, but regulatory mechanisms were different for each growth regulator. Our results show that in particular the application of MT and SNP can improve growth of tomato in intensive vegetable production under high-nitrate stress and that root growth stimulation is of special importance in procuring these beneficial effects.
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Affiliation(s)
- Rongting Ji
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing, China
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Ju Min
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Yuan Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Herbert J. Kronzucker
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Weiming Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
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81
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Wang K, Cai S, Xing Q, Qi Z, Fotopoulos V, Yu J, Zhou J. Melatonin delays dark-induced leaf senescence by inducing miR171b expression in tomato. J Pineal Res 2022; 72:e12792. [PMID: 35174545 DOI: 10.1111/jpi.12792] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/29/2022] [Accepted: 02/11/2022] [Indexed: 11/29/2022]
Abstract
Melatonin functions in multiple aspects of plant growth, development, and stress response. Nonetheless, the mechanism of melatonin in plant carbon metabolism remains largely unknown. In this study, we investigated the influence of melatonin on the degradation of starch in tomato leaves. Results showed that exogenous melatonin attenuated carbon starvation-induced chlorophyll degradation and leaf senescence. In addition, melatonin delayed leaf starch degradation and inhibited the transcription of starch-degrading enzymes after sunset. Interestingly, melatonin-alleviated symptoms of leaf senescence and starch degradation were compromised when the first key gene for starch degradation, α-glucan water dikinase (GWD), was overexpressed. Furthermore, exogenous melatonin significantly upregulated the transcript levels of several microRNAs, including miR171b. Crucially, the GWD gene was identified as a target of miR171b, and the overexpression of miR171b ameliorated the carbon starvation-induced degradation of chlorophyll and starch, and inhibited the expression of the GWD gene. Taken together, these results demonstrate that melatonin promotes plant tolerance against carbon starvation by upregulating the expression of miR171b, which can directly inhibit GWD expression in tomato leaves.
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Affiliation(s)
- Kaixin Wang
- Department of Horticulture, Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zijingang Campus, Zhejiang University, Hangzhou, People's Republic of China
| | - Shuyu Cai
- Department of Horticulture, Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zijingang Campus, Zhejiang University, Hangzhou, People's Republic of China
| | - Qufan Xing
- Department of Horticulture, Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zijingang Campus, Zhejiang University, Hangzhou, People's Republic of China
| | - Zhenyu Qi
- Agricultural Experiment Station, Zhejiang University, Hangzhou, People's Republic of China
| | - Vasileios Fotopoulos
- Department of Agricultural Sciences Biotechnology and Food Science, Cyprus University of Technology, Lemesos, Cyprus
| | - Jingquan Yu
- Department of Horticulture, Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zijingang Campus, Zhejiang University, Hangzhou, People's Republic of China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Ministry of Agriculture and Rural Affairs, Hangzhou, People's Republic of China
| | - Jie Zhou
- Department of Horticulture, Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zijingang Campus, Zhejiang University, Hangzhou, People's Republic of China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Ministry of Agriculture and Rural Affairs, Hangzhou, People's Republic of China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, People's Republic of China
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82
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Function, Mechanism, and Application of Plant Melatonin: An Update with a Focus on the Cereal Crop, Barley (Hordeum vulgare L.). Antioxidants (Basel) 2022; 11:antiox11040634. [PMID: 35453319 PMCID: PMC9028855 DOI: 10.3390/antiox11040634] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 01/27/2023] Open
Abstract
Melatonin is a multiple-function molecule that was first identified in animals and later in plants. Plant melatonin regulates versatile processes involved in plant growth and development, including seed germination, root architecture, flowering time, leaf senescence, fruit ripening, and biomass production. Published reviews on plant melatonin have been focused on two model plants: (1) Arabidopsis and (2) rice, in which the natural melatonin contents are quite low. Efforts to integrate the function and the mechanism of plant melatonin and to determine how plant melatonin benefits human health are also lacking. Barley is a unique cereal crop used for food, feed, and malt. In this study, a bioinformatics analysis to identify the genes required for barley melatonin biosynthesis was first performed, after which the effects of exogenous melatonin on barley growth and development were reviewed. Three integrated mechanisms of melatonin on plant cells were found: (1) serving as an antioxidant, (2) modulating plant hormone crosstalk, and (3) signaling through a putative plant melatonin receptor. Reliable approaches for characterizing the function of barley melatonin biosynthetic genes and to modulate the melatonin contents in barley grains are discussed. The present paper should be helpful for the improvement of barley production under hostile environments and for the reduction of pesticide and fungicide usage in barley cultivation. This study is also beneficial for the enhancement of the nutritional values and healthcare functions of barley in the food industry.
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83
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Exogenous Melatonin Enhances Cold Resistance by Improving Antioxidant Defense and Cold-Responsive Genes’ Expression in Banana. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Accumulated evidence has revealed the mitigation effects of exogenous melatonin on cold stress in plants. In this study, to investigate the defensive roles of exogenous melatonin in banana under cold stress, we researched the influences of exogenous melatonin on the chlorophyll fluorescence parameters, antioxidant defense indexes and expression levels of cold-responsive genes in cold-stressed ‘Brazil’ banana seedlings. Results showed that 100 μM of exogenous melatonin achieved the best cold-resistance-promoting effect in banana. Exogenous melatonin treatment significantly increased the electron transfer rate, light harvesting efficiency, total antioxidant capacity, catalase and superoxidase activities and proline and soluble sugar contents and significantly reduced the accumulations of malondialdehyde, superoxide anion and hydrogen peroxide in the leaves of cold-stressed banana. In addition, under cold stress, melatonin significantly induced the expression of low-temperature-responsive genes, such as MaChiI1, MaCSD1C, MaWhy1, MaKIN10, MaADA1 and MaHOS1. It was concluded that the application of exogenous melatonin enhanced antioxidant defense and induced the expression of cold-responsive genes, thereby improving the cold resistance of banana. Our study will provide a basis for the application of exogenous melatonin in improving plant cold resistance.
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Fan Y, Li C, Li Y, Huang R, Guo M, Liu J, Sun T, Ge Y. Postharvest melatonin dipping maintains quality of apples by mediating sucrose metabolism. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 174:43-50. [PMID: 35123260 DOI: 10.1016/j.plaphy.2022.01.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/28/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Senescence is a pivotal factor that causes quality breakdown and economic loss of fruit after harvest. In this study, 'Golden Delicious' apples were used as the materials to investigate the effect of melatonin dipping on quality parameters and sucrose metabolism during room temperature storage. Postharvest melatonin treatment inhibited respiratory intensity and ethylene release, increased flesh firmness, soluble sugar, ascorbic acid, and soluble solid contents, and titratable acid in apples. Furthermore, melatonin treatment inhibited acid invertase and neutral invertase activities, increased sucrose synthase and sucrose phosphate synthase activities, and repressed the activities of sorbitol dehydrogenase, sorbitol oxidase and sucrose synthase cleavage in apple fruit. All these findings suggest that exogenous application of melatonin could maintain quality of 'Golden Delicious' apples by mediating the enzyme activity in sucrose metabolism.
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Affiliation(s)
- Yiting Fan
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Canying Li
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China.
| | - Yihan Li
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Rui Huang
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Mi Guo
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Jiaxin Liu
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Tong Sun
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China
| | - Yonghong Ge
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, PR China; National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, 121013, PR China.
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Du P, Yin B, Zhou S, Li Z, Zhang X, Cao Y, Han R, Shi C, Liang B, Xu J. Melatonin and dopamine mediate the regulation of nitrogen uptake and metabolism at low ammonium levels in Malus hupehensis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 171:182-190. [PMID: 35007949 DOI: 10.1016/j.plaphy.2022.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/29/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
In plants, ammonium (NH4+) is the main nitrogen source and acts as a physiological and morphological response signaling molecule. Melatonin and dopamine are associated with plant responses to abiotic stress. However, previous studies have rarely focused on nutrient stress, and the roles of melatonin and dopamine in the uptake and metabolism of nitrogen in plants remain unclear. In this study, we investigated the regulatory effects of melatonin and dopamine on nitrogen utilization efficiency in apple seedlings under two NH4+ concentrations (2 and 0.1 mM) by measuring plant growth, root system architecture, 15NH4+ content, and related enzyme activity and gene expression. Under low nitrogen supply, apple seedling growth slowed and showed marked reductions in biomass accumulation, chlorophyll content, and nutrient uptake. However, both melatonin and dopamine significantly improved plant growth, chlorophyll content, and root development and enhanced antioxidant enzyme activity. Exogenous application of melatonin or dopamine also promoted the absorption and accumulation of 15NH4+ and enhanced nitrogen metabolism-related enzyme activity. At the molecular level, melatonin and dopamine significantly increased the expression levels of nitrogen metabolism genes and transporter genes. Overall, these results suggest that melatonin and dopamine can relieve nutrient stress caused by low concentrations of NH4+ through regulating the absorption and metabolism of nitrogen.
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Affiliation(s)
- Peihua Du
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Baoying Yin
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Shasha Zhou
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Zhongyong Li
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Xueying Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Yang Cao
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Ruoxuan Han
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Congjian Shi
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Bowen Liang
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China.
| | - Jizhong Xu
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, Hebei, China
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Farooq MA, Islam F, Ayyaz A, Chen W, Noor Y, Hu W, Hannan F, Zhou W. Mitigation effects of exogenous melatonin-selenium nanoparticles on arsenic-induced stress in Brassica napus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118473. [PMID: 34758366 DOI: 10.1016/j.envpol.2021.118473] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/12/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
Melatonin (MT) and selenium (Se) application known to decrease heavy metal uptake and toxicity in plants. By mixing the Se in MT medium a new complex MT-Se nanoparticles (MT-Se NPs) was synthesized and we investigated the role of MT-Se NPs on B. napus growth and tolerance against As stress. The MT-Se particles significantly enhanced the plant growth and other associated physiological attributes under As stress. The As treatment at 80 μM was more phytotoxic, however MT-Se NPs application resulted in a substantial increase in leaf chlorophyll fluorescence, biomass accumulation, and decreased ROS relative to As stressed plants. The use of MT-Se NPs to As stressed plants reduced photosynthetic inhibition and oxidative stress and attenuated the increase in MDA and H2O2 contents. The application of MT-Se NPs also boosted the antioxidant enzymes activities such as SOD, POD and CAT as well as the APX, GR and GSH activates under As stress. The results also showed MT-Se NPs treatments alleviated the growth inhibition induced by As and reduced the accumulation of As in leaves and roots of B. napus seedlings. Moreover, treatment with MT-Se NPs improved the plant growth more successfully than treatment of MT and Se alone. This study explored the mechanism of melatonin and selenium efficiency in the composition can be jointly encouraged to exert synergistic effects and boost plant enzymatic activities.
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Affiliation(s)
- Muhammad Ahsan Farooq
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Faisal Islam
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Ahsan Ayyaz
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Weiqi Chen
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Yamna Noor
- Department of Botany, The Women University, Multan, 60000, Pakistan
| | - Weizhen Hu
- Agricultural Experiment Station, Zhejiang University, Hangzhou, 310058, China
| | - Fakhir Hannan
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China
| | - Weijun Zhou
- Institute of Crop Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Spectroscopy Sensing, Zhejiang University, Hangzhou, 310058, China.
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87
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Ali S, Gill RA, Shafique MS, Ahmar S, Kamran M, Zhang N, Riaz M, Nawaz M, Fang R, Ali B, Zhou W. Role of phytomelatonin responsive to metal stresses: An omics perspective and future scenario. FRONTIERS IN PLANT SCIENCE 2022; 13:936747. [PMID: 36147242 PMCID: PMC9486320 DOI: 10.3389/fpls.2022.936747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/08/2022] [Indexed: 05/03/2023]
Abstract
A pervasive melatonin (N-acetyl-5-methoxytryptamine) reveals a crucial role in stress tolerance and plant development. Melatonin (MT) is a unique molecule with multiple phenotypic expressions and numerous actions within the plants. It has been extensively studied in crop plants under different abiotic stresses such as drought, salinity, heat, cold, and heavy metals. Mainly, MT role is appraised as an antioxidant molecule that deals with oxidative stress by scavenging reactive oxygen species (ROS) and modulating stress related genes. It improves the contents of different antioxidant enzyme activities and thus, regulates the redox hemostasis in crop plants. In this comprehensive review, regulatory effects of melatonin in plants as melatonin biosynthesis, signaling pathway, modulation of stress related genes and physiological role of melatonin under different heavy metal stress have been reviewed in detail. Further, this review has discussed how MT regulates different genes/enzymes to mediate defense responses and overviewed the context of transcriptomics and phenomics followed by the metabolomics pathways in crop plants.
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Affiliation(s)
- Skhawat Ali
- Institute of Crop Science and Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Rafaqat Ali Gill
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, The Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, China
| | | | - Sunny Ahmar
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia, Katowice, Poland
| | - Muhammad Kamran
- School of Agriculture, Food and Wine, The University of Adelaide, Urrbrae, SA, Australia
| | - Na Zhang
- Institute of Crop Science and Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Muhammad Riaz
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong, China
| | - Muhammad Nawaz
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Rouyi Fang
- Institute of Crop Science and Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
| | - Basharat Ali
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
- Basharat Ali,
| | - Weijun Zhou
- Institute of Crop Science and Zhejiang Key Laboratory of Crop Germplasm, Zhejiang University, Hangzhou, China
- *Correspondence: Weijun Zhou,
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Wei J, Liang J, Liu D, Liu Y, Liu G, Wei S. Melatonin-induced physiology and transcriptome changes in banana seedlings under salt stress conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:938262. [PMID: 36147243 PMCID: PMC9485729 DOI: 10.3389/fpls.2022.938262] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/05/2022] [Indexed: 05/17/2023]
Abstract
Soil salinization poses a serious threat to the ecological environment and agricultural production and is one of the most common abiotic stresses in global agricultural production. As a salt-sensitive plant, the growth, development, and production of bananas (Musa acuminata L.) are restricted by salt stress. Melatonin is known to improve the resistance of plants to stress. The study analyzed the effects of 100 μM melatonin on physiological and transcriptome changes in banana varieties (AAA group cv. Cavendish) under 60 mmol/l of NaCl salt stress situation. The phenotypic results showed that the application of exogenous melatonin could maintain banana plants' health growth and alleviate the damage caused by salt stress. The physiological data show that the application of exogenous melatonin can enhance salt tolerance of banana seedlings by increasing the content of proline content and soluble protein, slowing down the degradation of chlorophyll, reducing membrane permeability and recovery of relative water content, increasing the accumulation of MDA, and enhancing antioxidant defense activity. Transcriptome sequencing showed that melatonin-induced salt tolerance of banana seedlings involved biological processes, molecular functions, and cellular components. We also found that differentially expressed genes (DEGs) are involved in a variety of metabolic pathways, including amino sugar and nucleotide sugar metabolism, phenylalanine metabolism, cyanoamino acid metabolism, starch and sucrose metabolism, and linoleic acid metabolism. These major metabolism and biosynthesis may be involved in the potential mechanism of melatonin under salt stress. Furthermore, some members of the transcription factor family, such as MYB, NAC, bHLH, and WRKY, might contribute to melatonin alleviating salt stress tolerance of the banana plant. The result laid a basis for further clarifying the salt stress resistance mechanism of bananas mediated by exogenous melatonin and provides theoretical bases to utilize melatonin to improve banana salt tolerance in the future.
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Affiliation(s)
- Junya Wei
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jinhao Liang
- Applied Science and Technology College, Hainan University, Haikou, China
| | - Debing Liu
- Applied Science and Technology College, Hainan University, Haikou, China
- *Correspondence: Debing Liu,
| | - Yuewei Liu
- Applied Science and Technology College, Hainan University, Haikou, China
| | - Guoyin Liu
- Forestry College, Hainan University, Haikou, China
- Guoyin Liu,
| | - Shouxing Wei
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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89
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Han Y, Gao Y, Li M, Du Y, Zhang Y, Zhang W, Du J. The molecular events underpinning cultivar differences in melatonin counteracting salt damage in Phaseolus vulgaris. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:201-217. [PMID: 34871542 DOI: 10.1071/fp21126] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Melatonin (N -acetyl-5-methoxytryptamine) plays important roles in multiple stress responses, especially under salt stress. However, cultivar differences in melatonin mediated salt stress tolerance are unclear. Phaseolus vulgaris L. (common bean) cultivars Jiyin 1 (JY, salt-tolerant) and Xuliyabai (XL, salt-sensitive) were used in this study. Exogenous melatonin significantly improved root growth under salt stress in JY, but had little effect on XL. Physiology analysis showed significant differences in activities of antioxidant enzymes (superoxide, SOD; and catalase, CAT) and malondialdehyde content between JY and XL. Meanwhile, the change of ABA content in JY and XL root was opposite in salt plus melatonin treatment. Comparative root transcriptomes of JY and XL revealed 3505 and 668 differentially expressed genes (DEGs) regulated by salt stress and melatonin. The most enriched melatonin-responsive genes under salt stress are mainly involved in regulation of transcription, oxidation-reduction process, transcription factor activity, oxidoreductase activity. In addition, melatonin induced more obvious changes of DEGs in JY than that in XL under salt condition. Melatonin also significantly induced 41 DEGs only in JY, including signal transduction genes, transcription factors, ubiquitin protein ligases, ion homeostasis and osmotic adjustment genes etc. This study uncovered the molecular mechanism of cultivar difference of melatonin response under salt stress in common bean.
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Affiliation(s)
- Yiqiang Han
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China; and National Coarse Cereals Engineering Research Center, Daqing 163319, Heilongjiang Province, P. R. China
| | - Yamei Gao
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China; and Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in the Cold Region, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
| | - Ming Li
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
| | - Yanli Du
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
| | - Yuxian Zhang
- National Coarse Cereals Engineering Research Center, Daqing 163319, Heilongjiang Province, P. R. China; and College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
| | - Wenhui Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
| | - Jidao Du
- National Coarse Cereals Engineering Research Center, Daqing 163319, Heilongjiang Province, P. R. China; and College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Province, P. R. China
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90
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Pan J, Wang H, Chen W, You Q, Li X, Yu D. Phytomelatonin inhibits seed germination by regulating germination-related hormone signaling in Arabidopsis. PLANT SIGNALING & BEHAVIOR 2021; 16:1970447. [PMID: 34633895 PMCID: PMC9208781 DOI: 10.1080/15592324.2021.1970447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 05/31/2023]
Abstract
Seed germination is a vital initial stage in the life cycle of a plant, which determines subsequent vegetative growth and reproduction. Melatonin acts as a plant's master regulator and is also involved in the process of seed germination. In a recent study, we show that the high concentration melatonin inhibited seed germination in Arabidopsis. Transcriptome and phenotype analysis implied that melatonin-mediated seed germination interacted with phytohormones abscisic acid (ABA), gibberellin (GA), and auxin. In this short communication, we discuss the mechanism of phytomelatonin that inhibits seed germination through ABA, GA, and IAA in Arabidopsis.
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Affiliation(s)
- Jinjing Pan
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Houping Wang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Wanqin Chen
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Qiugui You
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Xia Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Diqiu Yu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
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ElSayed AI, Rafudeen MS, Gomaa AM, Hasanuzzaman M. Exogenous melatonin enhances the reactive oxygen species metabolism, antioxidant defense-related gene expression, and photosynthetic capacity of Phaseolus vulgaris L. to confer salt stress tolerance. PHYSIOLOGIA PLANTARUM 2021; 173:1369-1381. [PMID: 33619766 DOI: 10.1111/ppl.13372] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 01/28/2021] [Accepted: 02/16/2021] [Indexed: 05/03/2023]
Abstract
Melatonin (MT) has been reported to regulate certain plant physiological processes and promote tolerance to different environmental stresses such as salinity. Green bean (Phaseolus vulgaris L. cv. Royal Nel) seedlings were exposed to 200 mM NaCl with or without pre-treatment with 150 μM MT. Salt stress led to a lower chlorophyll content, a reduced photosynthetic activity, increased reactive oxygen species (ROS) contents, and decreased photosystem II (PSII) activity. The application of exogenous MT to green bean seedlings under salt stress improved photosynthetic activity and alleviated the oxidative damages by enhancing the activity of antioxidant enzymes. The expression of catalase (CAT1), glutathione reductase (GR), superoxide dismutase (CuZnSOD1), ascorbate peroxidase (APX), Peroxiredoxin Q (PrxQ), and 2-cysteine peroxiredoxin (2-Cys-Prx) encoding genes was significantly increased under salt stress in green bean seedling compared with the untreated control. However, plants treated with exogenous MT and NaCl had 28.8, 21.1, 26.1, 20, 26.2, and 22.4% higher CuZnSOD, CAT1, APX, GR, PrxQ, and 2-Cys-Prx transcript levels, respectively, compared to NaCl stress alone. Our study revealed the protective mechanisms mediated by exogenous MT application in NaCl stress alleviation and our findings could be used in the management of green bean cultivation in salinity-prone soils.
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Affiliation(s)
| | | | - Ayman M Gomaa
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
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92
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Hu W, Zhang J, Yan K, Zhou Z, Zhao W, Zhang X, Pu Y, Yu R. Beneficial effects of abscisic acid and melatonin in overcoming drought stress in cotton (Gossypium hirsutum L.). PHYSIOLOGIA PLANTARUM 2021; 173:2041-2054. [PMID: 34487361 DOI: 10.1111/ppl.13550] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/20/2021] [Accepted: 09/01/2021] [Indexed: 05/23/2023]
Abstract
Pot experiments were performed to study the effects of abscisic acid (ABA) and melatonin (MT) on cotton drought tolerance and to explore their combined effects. ABA or MT spraying promoted water status and antioxidant capacity of drought-stressed leaves, which was conducive to scavenge ROS, finally increasing lint yield. However, the mitigation mechanisms of ABA and MT on drought were not identical, which were mainly manifested as: (1) ABA increased the relative water content (RWC) of drought-stressed leaves via, reducing water loss, but MT increased it via, promoting water uptake efficiency; (2) for enzymatic antioxidant system, ABA and MT might modulate different kinds of superoxide dismutase to catalyze the reduction of O2 - under drought; and (3) for ascorbic acid (AsA)-glutathione (GSH) cycle, MT increased the glutathione reductase activity in drought-stressed leaves, but ABA did not. ABA + MT spraying led to higher leaf RWC and total antioxidant capacity than single hormone under drought, leading to a lower H2 O2 level. For the enzymatic antioxidant system, single hormone treatment affected Cu/ZnSOD or MnSOD expression, but ABA + MT upregulated both genes in drought-stressed leaves. Hormones combined application also had higher CAT expression than single hormone. For AsA-GSH cycle, ABA + MT had higher dehydroascorbic acid reductase activity than single hormone, resulting in higher AsA content. Moreover, hormones combined application caused higher ascorbate peroxidase activity than single hormone, suggesting that their combination synergistically improved the ability of AsA to eliminate ROS. All these confirmed that ABA plus MT had synergistic effects on improving crop drought resistance.
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Affiliation(s)
- Wei Hu
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Jipeng Zhang
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Ke Yan
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Zhiguo Zhou
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Wenqing Zhao
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Xuandi Zhang
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Yanhong Pu
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Runxing Yu
- College of Agriculture, Nanjing Agricultural University, Nanjing, China
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Jin J, Wang J, Li K, Wang S, Qin J, Zhang G, Na X, Wang X, Bi Y. Integrated Physiological, Transcriptomic, and Metabolomic Analyses Revealed Molecular Mechanism for Salt Resistance in Soybean Roots. Int J Mol Sci 2021; 22:12848. [PMID: 34884654 PMCID: PMC8657671 DOI: 10.3390/ijms222312848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 12/03/2022] Open
Abstract
Salinity stress is a threat to yield in many crops, including soybean (Glycine max L.). In this study, three soybean cultivars (JD19, LH3, and LD2) with different salt resistance were used to analyze salt tolerance mechanisms using physiology, transcriptomic, metabolomic, and bioinformatic methods. Physiological studies showed that salt-tolerant cultivars JD19 and LH3 had less root growth inhibition, higher antioxidant enzyme activities, lower ROS accumulation, and lower Na+ and Cl- contents than salt-susceptible cultivar LD2 under 100 mM NaCl treatment. Comparative transcriptome analysis showed that compared with LD2, salt stress increased the expression of antioxidant metabolism, stress response metabolism, glycine, serine and threonine metabolism, auxin response protein, transcription, and translation-related genes in JD19 and LH3. The comparison of metabolite profiles indicated that amino acid metabolism and the TCA cycle were important metabolic pathways of soybean in response to salt stress. In the further validation analysis of the above two pathways, it was found that compared with LD2, JD19, and LH3 had higher nitrogen absorption and assimilation rate, more amino acid accumulation, and faster TCA cycle activity under salt stress, which helped them better adapt to salt stress. Taken together, this study provides valuable information for better understanding the molecular mechanism underlying salt tolerance of soybean and also proposes new ideas and methods for cultivating stress-tolerant soybean.
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Affiliation(s)
- Jie Jin
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Jianfeng Wang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China;
- Center for Grassland Microbiome, Collaborative Innovation Center for Western Ecological Safety, State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Keke Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Shengwang Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Juan Qin
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Guohong Zhang
- Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China;
| | - Xiaofan Na
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Xiaomin Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
| | - Yurong Bi
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China; (J.J.); (K.L.); (S.W.); (J.Q.); (X.N.)
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94
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Wang H, Ren C, Cao L, Jin X, Wang M, Zhang M, Zhao Q, Li H, Zhang Y, Yu G. The mechanisms underlying melatonin improved soybean seedling growth at different nitrogen levels. FUNCTIONAL PLANT BIOLOGY : FPB 2021; 48:1225-1240. [PMID: 34629143 DOI: 10.1071/fp21154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/25/2021] [Indexed: 05/22/2023]
Abstract
To investigate the function of melatonin (MT) on nitrogen uptake and metabolism in soybean, six groups of treatments, with and without 100μM melatonin were conducted at low, normal, and high nitrogen levels (1.5, 7.5, and 15mM, respectively). The related indexes of nitrogen metabolism and the antioxidant system of seedlings were measured and analysed. Results indicated that MT could enhance the level of nitrogen metabolism by upregulating the coding genes of enzymes related to nitrogen metabolism and increasing total nitrogen content, especially under low nitrogen levels. Under high nitrogen conditions, the addition of MT not only accelerated ammonium assimilation and utilisation by enhancing the activity of glutamine synthetase involved in ammonium assimilation, but also reduced the extent of membrane lipid peroxidation to alleviate the degree of damage by improving the activity of antioxidant enzymes. In addition, MT enhanced soybean growth with positive effects in morphological changes at different nitrogen levels, including significantly increased stem diameter, total leaf area, and root nodule number, and biomass accumulation. Finally, biomass accumulation increased under low, normal, and high nitrogen levels by 9.80%, 14.06%, and 11.44%, respectively. The results suggested that MT could enhance the soybean tolerance to low and excessive N treatments.
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Affiliation(s)
- Huamei Wang
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Chunyuan Ren
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Liang Cao
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Xijun Jin
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Mengxue Wang
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Mingcong Zhang
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Qiang Zhao
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - He Li
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yuxian Zhang
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China; and National Coarse Cereals Engineering Research Center, Daqing 163000, China
| | - Gaobo Yu
- College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
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95
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Wang G, Chen X, Zhang C, Li M, Sun C, Zhan N, Huang X, Li T, Deng W. Biosynthetic Pathway and the Potential Role of Melatonin at Different Abiotic Stressors and Developmental Stages in Tolypocladium guangdongense. Front Microbiol 2021; 12:746141. [PMID: 34690994 PMCID: PMC8533646 DOI: 10.3389/fmicb.2021.746141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Melatonin, a bioactive compound and an important signaling molecule produced in plants and animals, is involved in many biological processes. However, its function and synthetic pathways in fungi are poorly understood. Here, the samples from Tolypocladium guangdongense, a highly valued edible fungus with functional food properties, were collected under different experimental conditions to quantify the levels of melatonin and its intermediates. The results showed that the intracellular melatonin content was markedly improved by Congo red (CR), cold, and heat stresses; the levels of intracellular melatonin and its intermediates increased at the primordial (P) and fruiting body (FB) stages. However, the levels of most intermediates exhibited a notable decrease under CR stress. Several genes related to melatonin synthesis, excluding AADC (aromatic-L-amino-acid decarboxylase), were markedly upregulated at an early stage of CR stress but downregulated later. Compared to the mycelial stage, those genes were significantly upregulated at the P and FB stages. Additionally, exogenous melatonin promoted resistance to several abiotic stressors and P formation in T. guangdongense. This study is the first to report melatonin biosynthesis pathway in macro-fungi. Our results should help in studying the diversity of melatonin function and melatonin-synthesis pathways and provide a new viewpoint for melatonin applications in the edible-medicinal fungus.
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Affiliation(s)
- Gangzheng Wang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xianglian Chen
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.,Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
| | - Chenghua Zhang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Min Li
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.,College of Agriculture and Animal Husbandry, Tibet University, Nyingchi, China
| | - Chengyuan Sun
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.,College of Plant Protection, China Agricultural University, Guangzhou, China
| | - Ning Zhan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.,College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Xueshuang Huang
- Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, Hunan University of Medicine, Huaihua, China
| | - Taihui Li
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Wangqiu Deng
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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96
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5-Methoxyindole, a Chemical Homolog of Melatonin, Adversely Affects the Phytopathogenic Fungus Fusarium graminearum. Int J Mol Sci 2021; 22:ijms222010991. [PMID: 34681652 PMCID: PMC8536143 DOI: 10.3390/ijms222010991] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 01/01/2023] Open
Abstract
Fusarium graminearum is a destructive fungal pathogen that threatens the production and quality of wheat, and controlling this pathogen is a significant challenge. As the cost-effective homolog of melatonin, 5-methoxyindole showed strong activity against F. graminearum. In the present study, our results showed the strong adverse activity of 5-methoxyindole against F. graminearum by inhibiting its growth, formation, and conidia germination. In addition, 5-methoxyindole could induce malformation, reactive oxygen species (ROS) accumulation, and cell death in F. graminearum hyphae and conidia. In response to 5-methoxyindole, F. graminearum genes involved in scavenging reactive oxygen species were significantly downregulated. Overall, these findings reveal the mechanism of antifungal action of melatonin-homolog 5-methoxyindole. To the best of our knowledge, this is the first report that a novel melatonin homolog confers strong antifungal activity against F. graminearum, and 5-methoxyindole is a potential compound for protecting wheat plants from F. graminearum infection.
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97
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Arnao MB, Hernández-Ruiz J, Cano A, Reiter RJ. Melatonin and Carbohydrate Metabolism in Plant Cells. PLANTS (BASEL, SWITZERLAND) 2021; 10:1917. [PMID: 34579448 PMCID: PMC8472256 DOI: 10.3390/plants10091917] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/11/2021] [Accepted: 09/14/2021] [Indexed: 12/11/2022]
Abstract
Melatonin, a multifunctional molecule that is present in all living organisms studied, is synthesized in plant cells in several intercellular organelles including in the chloroplasts and in mitochondria. In plants, melatonin has a relevant role as a modulatory agent which improves their tolerance response to biotic and abiotic stress. The role of melatonin in stress conditions on the primary metabolism of plant carbohydrates is reviewed in the present work. Thus, the modulatory actions of melatonin on the various biosynthetic and degradation pathways involving simple carbohydrates (mono- and disaccharides), polymers (starch), and derivatives (polyalcohols) in plants are evaluated. The possible applications of the use of melatonin in crop improvement and postharvest products are examined.
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Affiliation(s)
- Marino B. Arnao
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100 Murcia, Spain; (J.H.-R.); (A.C.)
| | - Josefa Hernández-Ruiz
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100 Murcia, Spain; (J.H.-R.); (A.C.)
| | - Antonio Cano
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100 Murcia, Spain; (J.H.-R.); (A.C.)
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, UT Health, Long School of Medicine, San Antonio, TX 78229, USA
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98
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Jafari M, Shahsavar A. The Effect of Foliar Application of Melatonin on Changes in Secondary Metabolite Contents in Two Citrus Species Under Drought Stress Conditions. FRONTIERS IN PLANT SCIENCE 2021; 12:692735. [PMID: 34567024 PMCID: PMC8455919 DOI: 10.3389/fpls.2021.692735] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/28/2021] [Indexed: 05/26/2023]
Abstract
Plant secondary metabolites are compounds that play an important role in plant interactions and defense. Persian lime and Mexican lime as the two most important sour lime varieties with high levels of secondary metabolites, are widely cultivated in tropical and subtropical areas. Melatonin is a pleiotropic molecule that plays a key role in protecting plants against drought stress through regulating the secondary metabolite biosynthesis pathway. This study was performed as a factorial experiment consisting of three factors in a completely randomized design (CRD), including four concentrations of melatonin (0, 50, 100, and 150 μM), three levels of drought stress [100% (control), 75% (moderate stress), and 40% (severe stress) field capacity (FC)], and two Citrus cultivars. The experiment was conducted for 60 days in a greenhouse condition. Based on the results of this study under severe drought stress, melatonin-treated crops had higher total flavonoid and total phenolic contents than the untreated crops. The highest level of essential oils components was observed on 100 μM foliar application of melatonin under severe drought stress in both varieties. The main component of the essential oil was limonene in both Citrus species. Moreover, based on the analysis of the results, hesperidin was the main polyphenol in both varieties. Since the use of melatonin often increases the production of secondary metabolites, this study can be considered as a very effective method for controlling the adverse effects of drought stress in citrus for both industrial and horticultural aims.
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Affiliation(s)
| | - Alireza Shahsavar
- Department of Horticultural Science, College of Agriculture, Shiraz University, Shiraz, Iran
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99
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Chen W, Zhang J, Zheng S, Wang Z, Xu C, Zhang Q, Wu J, Lou H. Metabolite profiling and transcriptome analyses reveal novel regulatory mechanisms of melatonin biosynthesis in hickory. HORTICULTURE RESEARCH 2021; 8:196. [PMID: 34465767 PMCID: PMC8408178 DOI: 10.1038/s41438-021-00631-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 04/20/2021] [Accepted: 06/06/2021] [Indexed: 05/08/2023]
Abstract
Studies have shown that melatonin regulates the expression of various elements in the biosynthesis and catabolism of plant hormones. In contrast, the effects of these different plant hormones on the biosynthesis and metabolism of melatonin and their underlying molecular mechanisms are still unclear. In this study, the melatonin biosynthesis pathway was proposed from constructed metabolomic and transcriptomic libraries from hickory (Carya cathayensis Sarg.) nuts. The candidate pathway genes were further identified by phylogenetic analysis, amino-acid sequence alignment, and subcellular localization. Notably, most of the transcription factor-related genes coexpressed with melatonin pathway genes were hormone-responsive genes. Furthermore, dual-luciferase and yeast one-hybrid assays revealed that CcEIN3 (response to ethylene) and CcAZF2 (response to abscisic acid) could activate melatonin biosynthesis pathway genes, a tryptophan decarboxylase coding gene (CcTDC1) and an N-acetylserotonin methyltransferase coding gene (CcASMT1), by directly binding to their promoters, respectively. Our results provide a molecular basis for the characterization of novel melatonin biosynthesis regulatory mechanisms and demonstrate for the first time that abscisic acid and ethylene can regulate melatonin biosynthesis.
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Affiliation(s)
- Wenchao Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Jiaqi Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Shan Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Zhanqi Wang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Sciences, Huzhou University, 313000, Huzhou, China
| | - Chuanmei Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Qixiang Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Jiasheng Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China
| | - Heqiang Lou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, 311300, Hangzhou, Zhejiang, China.
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100
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Agathokleous E, Zhou B, Xu J, Ioannou A, Feng Z, Saitanis CJ, Frei M, Calabrese EJ, Fotopoulos V. Exogenous application of melatonin to plants, algae, and harvested products to sustain agricultural productivity and enhance nutritional and nutraceutical value: A meta-analysis. ENVIRONMENTAL RESEARCH 2021; 200:111746. [PMID: 34302829 DOI: 10.1016/j.envres.2021.111746] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 05/27/2023]
Abstract
Melatonin is produced by plants, algae, and animals. Worldwide studies show diverse positive effects of exogenous melatonin on plants, edible plant products, and algae, but the potential of melatonin to enhance food and feed systems through these positive effects remains largely unexplored. Through a meta-analysis of about 25,000 observations, we show for the first time that exogenous application of melatonin significantly increases crop productivity and yields, and enhances the nutritional and nutraceutical value of edible plant products and algae by regulating diverse biological functions. We demonstrate that melatonin can improve plants, edible plant products, and algae under various current climate change scenarios, environmental pollution factors, and other stresses by about 7% to nearly 30%, on average, depending on the stressor. We also analyze various technical/methodological factors influencing the desired outcomes and identify conditions that offer optimal enhancement. We show that the positive effect of melatonin on plants and edible plant products varies among species, genera, and families, and strongly depends on the concentration of melatonin and treatment duration. The effect of melatonin is slightly lower on the monocot clade Commelinids than on the eudicot clades Asterids and Rosids. We also show that its stimulatory effect on plants depends on cultivation system, with a larger effect obtained in hydroponic systems. However, it does not depend on application stage (seed or vegetative), application route (foliage, roots, or seed), and whether the cultivation system is ex vivo or in vivo. This is the first meta-analysis examining the effects of melatonin on plants, edible plant products, and algae, and offers a scientific and technical roadmap facilitating sustainable food and feed production through the application of exogenous melatonin.
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Affiliation(s)
- Evgenios Agathokleous
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China.
| | - Boya Zhou
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China
| | - Jianing Xu
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China
| | - Andreas Ioannou
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos, 3603, Cyprus
| | - Zhaozhong Feng
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology (NUIST), Nanjing, 210044, China.
| | - Costas J Saitanis
- Lab of Ecology and Environmental Science, Agricultural University of Athens, Iera Odos 75, Athens, 11855, Greece
| | - Michael Frei
- Institute of Agronomy and Crop Physiology, Justus-Liebig-University, Heinrich-Buff-Ring 26-32, Giessen, 35392, Germany
| | - Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA
| | - Vasileios Fotopoulos
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos, 3603, Cyprus
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