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Juraniec M, Goormaghtigh E, Posmyk MM, Verbruggen N. An ecotype-specific effect of osmopriming and melatonin during salt stress in Arabidopsis thaliana. BMC PLANT BIOLOGY 2024; 24:707. [PMID: 39054444 PMCID: PMC11270801 DOI: 10.1186/s12870-024-05434-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND Natural populations of Arabidopsis thaliana exhibit phenotypic variations in specific environments and growth conditions. However, this variation has not been explored after seed osmopriming treatments. The natural variation in biomass production and root system architecture (RSA) was investigated across the Arabidopsis thaliana core collection in response to the pre-sawing seed treatments by osmopriming, with and without melatonin (Mel). The goal was to identify and characterize physiologically contrasting ecotypes. RESULTS Variability in RSA parameters in response to PEG-6000 seed osmopriming with and without Mel was observed across Arabidopsis thaliana ecotypes with especially positive impact of Mel addition under both control and 100 mM NaCl stress conditions. Two ecotypes, Can-0 and Kn-0, exhibited contrasted root phenotypes: seed osmopriming with and without Mel reduced the root growth of Can-0 plants while enhancing it in Kn-0 ones under both control and salt stress conditions. To understand the stress responses in these two ecotypes, main stress markers as well as physiological analyses were assessed in shoots and roots. Although the effect of Mel addition was evident in both ecotypes, its protective effect was more pronounced in Kn-0. Antioxidant enzymes were induced by osmopriming with Mel in both ecotypes, but Kn-0 was characterized by a higher responsiveness, especially in the activities of peroxidases in roots. Kn-0 plants experienced lower oxidative stress, and salt-induced ROS accumulation was reduced by osmopriming with Mel. In contrast, Can-0 exhibited lower enzyme activities but the accumulation of proline in its organs was particularly high. In both ecotypes, a greater response of antioxidant enzymes and proline accumulation was observed compared to mechanisms involving the reduction of Na+ content and prevention of K+ efflux. CONCLUSIONS In contrast to Can-0, Kn-0 plants grown from seeds osmoprimed with and without Mel displayed a lower root sensitivity to NaCl-induced oxidative stress. The opposite root growth patterns, enhanced by osmopriming treatments might result from different protective mechanisms employed by these two ecotypes which in turn result from adaptive strategies proper to specific habitats from which Can-0 and Kn-0 originate. The isolation of contrasting phenotypes paves the way for the identification of genetic factors affecting osmopriming efficiency.
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Affiliation(s)
- Michał Juraniec
- Department of Plant Ecophysiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, 90 237, Poland.
| | - Erik Goormaghtigh
- Laboratory for the Structure and Function of Biological Membranes, Center for Structural Biology and Bioinformatics, Faculté des Sciences, Université libre de Bruxelles, Brussels, 1050, Belgium
| | - Małgorzata M Posmyk
- Department of Plant Ecophysiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, 90 237, Poland.
| | - Nathalie Verbruggen
- Laboratoire de Physiologie et de Génétique Moléculaire des Plantes, Faculté des Sciences, Université libre de Bruxelles, Brussels, 1050, Belgium
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2
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Muñoz-Jurado A, Escribano BM. Presence of melatonin in foods of daily consumption: The benefit of this hormone for health. Food Chem 2024; 458:140172. [PMID: 38943958 DOI: 10.1016/j.foodchem.2024.140172] [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: 01/19/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/01/2024]
Abstract
Melatonin (MLT) is a hormone that exists in all living organisms, including bacteria, yeast, fungi, animals, and plants, many of which are ingested daily in the diet. However, the exact concentrations of melatonin in each of the foods and the effect on health of the intake of foods rich in MLT are not known. Therefore, the aim of this review was to gather the available information on the melatonin content of different foods and to evaluate the effect that this hormone has on different pathologies. The amount of MLT may vary depending on the variety, origin, heat treatment, processing, and analysis technique, among other factors. Dietary interventions with foods rich in MLT report health benefits, but there is no evidence that hormone is partially responsible for the clinical improvement. Therefore, it is necessary to evaluate the MLT content in more foods, as well as the effect that cooking/processing has on the amount of MLT, to estimate its total intake in a typical diet and better explore its potential impact on the health.
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Affiliation(s)
- Ana Muñoz-Jurado
- Department of Cell Biology, Physiology and Immunology, Faculty of Veterinary Medicine, University of Cordoba, Spain.; Maimonides Institute for Research in Biomedicine of Cordoba, (IMIBIC), Cordoba, Spain..
| | - Begoña M Escribano
- Department of Cell Biology, Physiology and Immunology, Faculty of Veterinary Medicine, University of Cordoba, Spain.; Maimonides Institute for Research in Biomedicine of Cordoba, (IMIBIC), Cordoba, Spain..
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3
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Chen K, Hu Q, Ma X, Zhang X, Qian R, Zheng J. The effect of exogenous melatonin on waterlogging stress in Clematis. FRONTIERS IN PLANT SCIENCE 2024; 15:1385165. [PMID: 38957603 PMCID: PMC11217522 DOI: 10.3389/fpls.2024.1385165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/30/2024] [Indexed: 07/04/2024]
Abstract
Clematis is the queen of the vines, being an ornamental plant with high economic value. Waterlogging stress reduces the ornamental value of the plant and limits its application. Melatonin plays an important role in plant resistance to abiotic stresses. In this study, the physiological responses and gene expression levels of two wild species, namely, Clematis tientaiensis and Clematis lanuginosa, and two horticultural varieties, namely, 'Sen-No-Kaze' and 'Viva Polonia,' under waterlogging stress were analyzed to determine the effect of melatonin on waterlogging tolerance. The results showed that the waterlogging tolerances of C. lanuginosa and 'Sen-No-Kaze' were relatively poor, but were significantly improved by concentrations of 100 μmol·L-1 and 50 μmol·L-1 melatonin. C. tientaiensis and 'Viva Polonia' had relatively strong tolerance to waterlogging, and this was significantly improved by 200 μmol·L-1 melatonin. Under waterlogging stress, the relative conductivity and H2O2 content of Clematis increased significantly; the photosynthetic parameters and chlorophyll contents were significantly decreased; photosynthesis was inhibited; the contents of soluble protein and soluble sugars were decreased. Effective improvement of waterlogging tolerance after exogenous melatonin spraying, the relative conductivity was decreased by 4.05%-27.44%; the H2O2 content was decreased by 3.84%-23.28%; the chlorophyll content was increased by 35.59%-103.36%; the photosynthetic efficiency was increased by 25.42%-45.86%; the antioxidant enzyme activities of APX, POD, SOD, and CAT were increased by 28.03%-158.61%; the contents of proline, soluble protein, and soluble sugars were enhanced, and cell homeostasis was improved. Transcription sequencing was performed on wild Clematis with differences in waterlogging tolerance, and nine transcription factors were selected that were highly correlated with melatonin and that had the potential to improve waterlogging tolerance, among which LBD4, and MYB4 were significantly positively correlated with the antioxidant enzyme system, and bHLH36, DOF36, and WRKY4 were significantly negatively correlated. Photosynthetic capacity was positively correlated with DOF36 and WRKY4 while being significantly negatively correlated with MYB4, MOF1, DOF47, REV1 and ABR1. Melatonin could enhance the flooding tolerance of Clematis by improving photosynthetic efficiency and antioxidant enzyme activity. This study provides an important basis and reference for the application of melatonin in waterlogging-resistant breeding of Clematis.
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Affiliation(s)
- Kai Chen
- College of Landscape Architecture, Zhejiang A & F University, Hangzhou, China
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Qingdi Hu
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Xiaohua Ma
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Xule Zhang
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Renjuan Qian
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Jian Zheng
- Wenzhou Key laboratory of Resource Plant Innovation and Utilization, Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
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Huang S, Jin S. Melatonin Interaction with Other Phytohormones in the Regulation of Abiotic Stresses in Horticultural Plants. Antioxidants (Basel) 2024; 13:663. [PMID: 38929102 PMCID: PMC11201163 DOI: 10.3390/antiox13060663] [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: 03/10/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
Horticultural crops play a vital role in global food production, nutrition, and the economy. Horticultural crops are highly vulnerable to abiotic stresses. These abiotic stresses hinder plant growth and development by affecting seed germination, impairing photosynthetic activity, and damaging root development, thus leading to a decrease in fruit yield, quality, and productivity. Scientists have conducted extensive research to investigate the mechanisms of resilience and the ability to cope with environmental stresses. In contrast, the use of phytohormones to alleviate the detrimental impacts of abiotic stresses on horticulture plants has been generally recognized as an effective method. Among phytohormones, melatonin (MT) is a novel plant hormone that regulates various plants' physiological functions such as seedling development, root system architecture, photosynthetic efficiency, balanced redox homeostasis, secondary metabolites production, accumulation of mineral nutrient uptake, and activated antioxidant defense system. Importantly, MT application significantly restricted heavy metals (HMs) uptake and increased mineral nutrient accumulation by modifying the root architecture system. In addition, MT is a naturally occurring, multifunctional, nontoxic biomolecule having antioxidant properties. Furthermore, this review described the hormonal interaction between MT and other signaling molecules in order to enhance abiotic stress tolerance in horticulture crops. This review focuses on current research advancements and prospective approaches for enhancing crop tolerance to abiotic stress.
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Affiliation(s)
| | - Songheng Jin
- Jiyang College, Zhejiang A&F University, Zhuji 311800, China;
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5
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Kołodziejczyk I, Kaźmierczak A. Melatonin - This is important to know. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170871. [PMID: 38340815 DOI: 10.1016/j.scitotenv.2024.170871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
MEL (N-acetyl-5-methoxytryptamine) is a well-known natural compound that controls cellular processes in both plants and animals and is primarily found in plants as a neurohormone. Its roles have been described very broadly, from its antioxidant function related to the photoperiod and determination of seasonal rhythms to its role as a signalling molecule, imitating the action of plant hormones (or even being classified as a prohormone). MEL positively affects the yield and survival of plants by increasing their tolerance to unfavourable biotic and abiotic conditions, which makes MEL widely applicable in ecological farming as a stimulant of growth and development. Thus, it is called a phytobiostimulator. In this review, we discuss the genesis of MEL functions, the presence of MEL at the cellular level and its effects on gene expression and plant development, which can ensure the survival of plants under the conditions they encounter. Moreover, we consider the future application possibilities of MEL in agriculture.
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Affiliation(s)
- Izabela Kołodziejczyk
- Department of Geobotany and Plant Ecology, Institute of Ecology and Environmental Protection, University of Lodz, Lodz 90-236, Banacha 12/16, 90-237, Poland
| | - Andrzej Kaźmierczak
- Department of Cytophysiology, Institute of Experimental Biology Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland.
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Ahmad B, Mukarram M, Choudhary S, Petrík P, Dar TA, Khan MMA. Adaptive responses of nitric oxide (NO) and its intricate dialogue with phytohormones during salinity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108504. [PMID: 38507841 DOI: 10.1016/j.plaphy.2024.108504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/23/2024] [Accepted: 03/03/2024] [Indexed: 03/22/2024]
Abstract
Nitric oxide (NO) is a gaseous free radical that acts as a messenger for various plant phenomena corresponding to photomorphogenesis, fertilisation, flowering, germination, growth, and productivity. Recent developments have suggested the critical role of NO in inducing adaptive responses in plants during salinity. NO minimises salinity-induced photosynthetic damage and improves plant-water relation, nutrient uptake, stomatal conductance, electron transport, and ROS and antioxidant metabolism. NO contributes active participation in ABA-mediated stomatal regulation. Similar crosstalk of NO with other phytohormones such as auxins (IAAs), gibberellins (GAs), cytokinins (CKs), ethylene (ET), salicylic acid (SA), strigolactones (SLs), and brassinosteroids (BRs) were also observed. Additionally, we discuss NO interaction with other gaseous signalling molecules such as reactive oxygen species (ROS) and reactive sulphur species (RSS). Conclusively, the present review traces critical events in NO-induced morpho-physiological adjustments under salt stress and discusses how such modulations upgrade plant resilience.
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Affiliation(s)
- Bilal Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India; Department of Botany, Govt Degree College for Women, Pulwama, University of Kashmir, 192301, India
| | - Mohammad Mukarram
- Department of Phytology, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 96001, Zvolen, Slovakia; Food and Plant Biology Group, Department of Plant Biology, School of Agriculture, Universidad de la República, Montevideo, Uruguay.
| | - Sadaf Choudhary
- Department of Botany, Govt Degree College for Women, Pulwama, University of Kashmir, 192301, India
| | - Peter Petrík
- Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research-Atmospheric Environmental Research (IMK-IFU), Kreuzeckbahnstraße 19, 82467, Garmisch-Partenkirchen, Germany
| | - Tariq Ahmad Dar
- Sri Pratap College, Cluster University Srinagar, 190001, India
| | - M Masroor A Khan
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
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7
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Ameen M, Zafar A, Mahmood A, Zia MA, Kamran K, Javaid MM, Yasin M, Khan BA. Melatonin as a master regulatory hormone for genetic responses to biotic and abiotic stresses in model plant Arabidopsis thaliana: a comprehensive review. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23248. [PMID: 38310885 DOI: 10.1071/fp23248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/09/2024] [Indexed: 02/06/2024]
Abstract
Melatonin is a naturally occurring biologically active amine produced by plants, animals and microbes. This review explores the biosynthesis of melatonin in plants, with a particular focus on its diverse roles in Arabidopsis thaliana , a model species. Melatonin affects abiotic and biotic stress resistance in A. thaliana . Exogenous and endogenous melatonin is addressed in association with various conditions, including cold stress, high light stress, intense heat and infection with Botrytis cinerea or Pseudomonas , as well as in seed germination and lateral root formation. Furthermore, melatonin confers stress resistance in Arabidopsis by initiating the antioxidant system, remedying photosynthesis suppression, regulating transcription factors involved with stress resistance (CBF, DREB, ZAT, CAMTA, WRKY33, MYC2, TGA) and other stress-related hormones (abscisic acid, auxin, ethylene, jasmonic acid and salicylic acid). This article additionally addresses other precursors, metabolic components, expression of genes (COR , CBF , SNAT , ASMT , PIN , PR1 , PDF1.2 and HSFA ) and proteins (JAZ, NPR1) associated with melatonin and reducing both biological and environmental stressors. Furthermore, the future perspective of melatonin rich agri-crops is explored to enhance plant tolerance to abiotic and biotic stresses, maximise crop productivity and enhance nutritional worth, which may help improve food security.
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Affiliation(s)
- Muaz Ameen
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Asma Zafar
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Anjum Zia
- Department of Biochemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Kashif Kamran
- Department of Physics, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Mansoor Javaid
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
| | - Muhammad Yasin
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
| | - Bilal Ahmad Khan
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha 40100, Pakistan
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8
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Wang L, Tanveer M, Wang H, Arnao MB. Melatonin as a key regulator in seed germination under abiotic stress. J Pineal Res 2024; 76:e12937. [PMID: 38241678 DOI: 10.1111/jpi.12937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/23/2023] [Accepted: 01/02/2024] [Indexed: 01/21/2024]
Abstract
Seed germination (SG) is the first stage in a plant's life and has an immense importance in sustaining crop production. Abiotic stresses reduce SG by increasing the deterioration of seed quality, and reducing germination potential, and seed vigor. Thus, to achieve a sustainable level of crop yield, it is important to improve SG under abiotic stress conditions. Melatonin (MEL) is an important biomolecule that interplays in developmental processes and regulates many adaptive responses in plants, especially under abiotic stresses. Thus, this review specifically summarizes and discusses the mechanistic basis of MEL-mediated SG under abiotic stresses. MEL regulates SG by regulating some stress-specific responses and some common responses. For instance, MEL induced stress specific responses include the regulation of ionic homeostasis, and hydrolysis of storage proteins under salinity stress, regulation of C-repeat binding factors signaling under cold stress, starch metabolism under high temperature and heavy metal stress, and activation of aquaporins and accumulation of osmolytes under drought stress. On other hand, MEL mediated regulation of gibberellins biosynthesis and abscisic acid catabolism, redox homeostasis, and Ca2+ signaling are amongst the common responses. Nonetheless factors such as endogenous MEL contents, plant species, and growth conditions also influence above-mentioned responses. In conclusion, MEL regulates SG under abiotic stress conditions by interacting with different physiological mechanisms.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Mohsin Tanveer
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Hongling Wang
- CAS Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Marino B Arnao
- Phytohormones & Plant Development Laboratory, Department of Plant Biology (Plant Physiology), University of Murcia, Murcia, Spain
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Wu Y, Liu J, Wu H, Zhu Y, Ahmad I, Zhou G. The Roles of Mepiquate Chloride and Melatonin in the Morpho-Physiological Activity of Cotton under Abiotic Stress. Int J Mol Sci 2023; 25:235. [PMID: 38203405 PMCID: PMC10778694 DOI: 10.3390/ijms25010235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/17/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Cotton growth and yield are severely affected by abiotic stress worldwide. Mepiquate chloride (MC) and melatonin (MT) enhance crop growth and yield by reducing the negative effects of abiotic stress on various crops. Numerous studies have shown the pivotal role of MC and MT in regulating agricultural growth and yield. Nevertheless, an in-depth review of the prominent performance of these two hormones in controlling plant morpho-physiological activity and yield in cotton under abiotic stress still needs to be documented. This review highlights the effects of MC and MT on cotton morpho-physiological and biochemical activities; their biosynthetic, signaling, and transduction pathways; and yield under abiotic stress. Furthermore, we also describe some genes whose expressions are affected by these hormones when cotton plants are exposed to abiotic stress. The present review demonstrates that MC and MT alleviate the negative effects of abiotic stress in cotton and increase yield by improving its morpho-physiological and biochemical activities, such as cell enlargement; net photosynthesis activity; cytokinin contents; and the expression of antioxidant enzymes such as catalase, peroxidase, and superoxide dismutase. MT delays the expression of NCED1 and NCED2 genes involved in leaf senescence by decreasing the expression of ABA-biosynthesis genes and increasing the expression of the GhYUC5, GhGA3ox2, and GhIPT2 genes involved in indole-3-acetic acid, gibberellin, and cytokinin biosynthesis. Likewise, MC promotes lateral root formation by activating GA20x genes involved in gibberellin catabolism. Overall, MC and MT improve cotton's physiological activity and antioxidant capacity and, as a result, improve the ability of the plant to resist abiotic stress. The main purpose of this review is to present an in-depth analysis of the performance of MC and MT under abiotic stress, which might help to better understand how these two hormones regulate cotton growth and productivity.
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Affiliation(s)
- Yanqing Wu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Jiao Liu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Hao Wu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Yiming Zhu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
- Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Irshad Ahmad
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
| | - Guisheng Zhou
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou 225009, China; (Y.W.); (J.L.); (H.W.); (Y.Z.)
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10
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Sheikhalipour M, Gohari G, Esmaielpour B, Behnamian M, Giglou MT, Milani MH, Bahrami MK, Kulak M, Ioannou A, Fotopoulos V, Vita F. Effect of melatonin foliar sprays on morphophysiological attributes, fruit yield and quality of Momordica charantia L. under salinity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108194. [PMID: 37992418 DOI: 10.1016/j.plaphy.2023.108194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/20/2023] [Accepted: 11/12/2023] [Indexed: 11/24/2023]
Abstract
Soil salinity is one of the increasing problems in agricultural fields in many parts of the world, adversely affecting the performance and health of the plants. As a pleiotropic signal and antioxidant molecule in both animals and plants, melatonin has been reported to possess significant roles in combating with stress factors, in general and salt stress, in particular. In this study, the interactive effects of melatonin (0, 75, and 150 μM) and salt stress (0, 50 and 100 mM NaCl) were investigated by assaying the some agronomic, physlogical and biochemical attributes and essential oil compounds of bitter melon (Momordica charantia). The results showed that exogenous melatonin could promote net photosynthetic rate (Pn) and PSII efficiency (Fv/Fm), increase K+ content and activity of antioxidant enzymes and decrease reactive oxygen species, malondialdehyde and Na+ content in stress-submitted seedlings, in comparison to the non-stressed seedlings (p < 0.05). Melatonin increased content of essential oils. Concerning the major compounds of fruits of bitter melon, charantin, momordicin and cucurbitacin were increased with the melatonin treatments, whereas they were critically decreased with the salt stress. In addition, melatonin increased the antioxidant capacity in fruits under non-saline and salinity conditions. Amid the concentrations of melatonin, plants treated with 150 μM of melatonin under either non-saline or saline conditions showed better performance and productivity. Therefore, application of 150 μM melatonin resulted in a significant improvement of salinity tolerance and essential oil compounds in bitter melon plant, suggesting this as an efficient 'green' strategy for sustainable crop production under salt stress conditions.
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Affiliation(s)
- Morteza Sheikhalipour
- Department of Horticulture, Faculty of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran; Department of Plant Breeding and Biotechnology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Gholamreza Gohari
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran; Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology Limassol, Cyprus.
| | - Behrooz Esmaielpour
- Department of Horticulture, Faculty of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Mehdi Behnamian
- Department of Horticulture, Faculty of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mousa Torabi Giglou
- Department of Horticulture, Faculty of Horticulture, University of Mohaghegh Ardabili, Ardabil, Iran
| | | | | | - Muhittin Kulak
- Department of Herbal and Animal Production, Vocational School of Technical Sciences, Igdir University, Igdir, Turkey
| | - Andreas Ioannou
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology Limassol, Cyprus
| | - Vasileios Fotopoulos
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology Limassol, Cyprus
| | - Federico Vita
- Department of Biology, University of Bari Aldo Moro, 70126, Bari, Italy
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Shen L, Xia X, Zhang L, Yang S, Yang X. Genome-Wide Identification of Catalase Gene Family and the Function of SmCAT4 in Eggplant Response to Salt Stress. Int J Mol Sci 2023; 24:16979. [PMID: 38069301 PMCID: PMC10706941 DOI: 10.3390/ijms242316979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Salinity is an important abiotic stress, damaging plant tissues by causing a burst of reactive oxygen species (ROS). Catalase (CAT) enzyme coded by Catalase (CAT) genes are potent in reducing harmful ROS and hydrogen peroxide (H2O2) produced. Herein, we performed bioinformatics and functional characterization of four SmCAT genes, retrieved from the eggplant genome database. Evolutionary analysis CAT genes revealed that they are divided into subgroups I and II. The RT-qPCR analysis of SmCAT displayed a differential expression pattern in response to abiotic stresses. All the CAT proteins of eggplant were localized in the peroxisome, except for SmCAT4, which localized in the cytomembrane and nucleus. Silencing of SmCAT4 compromised the tolerance of eggplant to salt stress. Suppressed expression levels of salt stress defense related genes SmTAS14 and SmDHN1, as well as increase of H2O2 content and decrease of CAT enzyme activity was observed in the SmCAT4 silenced eggplants. Our data provided insightful knowledge of CAT gene family in eggplant. Positive regulation of eggplant response to salinity by SmCAT4 provides resource for future breeding programs.
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Affiliation(s)
| | | | | | | | - Xu Yang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (L.S.); (X.X.); (L.Z.); (S.Y.)
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12
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Talaat NB. Drought Stress Alleviator Melatonin Reconfigures Water-Stressed Barley ( Hordeum vulgare L.) Plants' Photosynthetic Efficiency, Antioxidant Capacity, and Endogenous Phytohormone Profile. Int J Mol Sci 2023; 24:16228. [PMID: 38003420 PMCID: PMC10671378 DOI: 10.3390/ijms242216228] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
The production of crops is severely limited by water scarcity. We still do not fully understand the underlying mechanism of exogenous melatonin (MT)-mediated water stress tolerance in barley. This study is the first of its kind to show how MT can potentially mitigate changes in barley's physio-biochemical parameters caused by water deficiency. Barley was grown under three irrigation levels (100%, 70%, and 30% of field capacity) and was foliar sprayed with 70 μM MT. The results showed that exogenously applied MT protected the photosynthetic apparatus by improving photosynthetic pigment content, photochemical reactions of photosynthesis, Calvin cycle enzyme activity, gas exchange capacity, chlorophyll fluorescence system, and membrane stability index. Furthermore, the increased levels of salicylic acid, gibberellins, cytokinins, melatonin, and indole-3-acetic acid, as well as a decrease in abscisic acid, indicated that foliar-applied MT greatly improved barley water stress tolerance. Additionally, by increasing the activity of antioxidant enzymes such as superoxide dismutase, catalase, ascorbate peroxidase, monodehydroascorbate reductase, dehydroascorbate reductase, and glutathione reductase and decreasing hydrogen peroxide content, lipid peroxidation, and electrolyte leakage, MT application lessened water stress-induced oxidative stress. According to the newly discovered data, MT application improves barley water stress tolerance by reprogramming endogenous plant hormone production and antioxidant activity, which enhances membrane stability and photosynthesis. This study unraveled MT's crucial role in water deficiency mitigation, which can thus be applied to water stress management.
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Affiliation(s)
- Neveen B Talaat
- Department of Plant Physiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
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13
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de Andrade FHA, Ferreira AMO, Azevedo LM, de Oliveira Santos M, Carvalho GR, de Resende MLV, Bicalho EM, Silva VA. IBA and melatonin increase trigonelline and caffeine during the induction and initiation of adventitious roots in Coffea arabica L. cuttings. Sci Rep 2023; 13:15151. [PMID: 37704663 PMCID: PMC10499982 DOI: 10.1038/s41598-023-41288-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 08/24/2023] [Indexed: 09/15/2023] Open
Abstract
Caffeine and trigonelline are found in Coffea arabica, and show antioxidant roles and growth and development functions. However, there are no reports on trigonelline and caffeine in relation to coffee rooting. The aim was to evaluate the impact of application of indole-3-butyric acid (IBA) and melatonin on caffeine and trigonelline at different stages of adventitious rooting in cuttings. In addition, to study the correlation between these metabolites and H2O2, phenols, and antioxidant enzymes. Four treatments (Control, melatonin 21 µM (M21), melatonin 43 µM (M43), and IBA 7380 µM (IBA)) were used, with four replications. The growth and biochemical parameters of the antioxidant system were performed in induction, initiation, and extension rooting stages. Higher concentrations of trigonelline and caffeine quantified in the induction and initiation stages were positively correlated with higher percentage of rooted cuttings. Trigonelline and caffeine were positively correlated with H2O2 in all stages of development of adventitious roots. The correlations of trigoneline and caffeine with phenols and antioxidant enzymes reveal different profiles, depending on the phases. The results indicate that IBA and melatonin increase trigonelline and caffeine during the induction and initiation of adventitious roots in Coffea arabica cuttings, which is correlated with a higher percentage of rooted cuttings.
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Affiliation(s)
| | | | | | - Meline de Oliveira Santos
- Agricultural Research Company of Minas Gerais, Lavras, Minas Gerais, Brazil
- Scholarship BDCTI-I, FAPEMIG/INCT Café, Lavras, Brazil
| | | | | | | | - Vânia Aparecida Silva
- Agricultural Research Company of Minas Gerais, Lavras, Minas Gerais, Brazil
- Scholarship DT, CNPq, Lavras, Brazil
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14
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Arabia A, Muñoz P, Pallarés N, Munné-Bosch S. Experimental approaches in studying active biomolecules modulating fruit ripening: Melatonin as a case study. PLANT PHYSIOLOGY 2023; 192:1747-1767. [PMID: 36805997 PMCID: PMC10315297 DOI: 10.1093/plphys/kiad106] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/19/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Phytohormones are naturally occurring small organic molecules found at low concentrations in plants. They perform essential functions in growth and developmental processes, from organ initiation to senescence, including fruit ripening. These regulatory molecules are studied using different experimental approaches, such as performing exogenous applications, evaluating endogenous levels, and/or obtaining genetically modified lines. Here, we discuss the advantages and limitations of current experimental approaches used to study active biomolecules modulating fruit ripening, focusing on melatonin. Although melatonin has been implicated in fruit ripening in several model fruit crops, current knowledge is affected by the different experimental approaches used, which have given different and sometimes even contradictory results. The methods of application and the doses used have produced different results in studies based on exogenous applications, while different measurement methods and ways of expressing results explain most of the variability in studies using correlative analyses. Furthermore, studies on genetically modified crops have focused on tomato (Solanum lycopersicum L.) plants only. However, TILLING and CRISPR methodologies are becoming essential tools to complement the results from the experimental approaches described above. This will not only help the scientific community better understand the role of melatonin in modulating fruit ripening, but it will also help develop technological advances to improve fruit yield and quality in major crops. The combination of various experimental approaches will undoubtedly lead to a complete understanding of the function of melatonin in fruit ripening in the near future, so that this knowledge can be effectively transferred to the field.
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Affiliation(s)
- Alba Arabia
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona 08028, Spain
- Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona 08028, Spain
| | - Paula Muñoz
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona 08028, Spain
- Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona 08028, Spain
| | - Núria Pallarés
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona 08028, Spain
| | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona 08028, Spain
- Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona 08028, Spain
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15
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Akter R, Rahman MR, Ahmed ZS, Afrose A. Plausibility of natural immunomodulators in the treatment of COVID-19-A comprehensive analysis and future recommendations. Heliyon 2023; 9:e17478. [PMID: 37366526 PMCID: PMC10284624 DOI: 10.1016/j.heliyon.2023.e17478] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023] Open
Abstract
The COVID-19 pandemic has inflicted millions of deaths worldwide. Despite the availability of several vaccines and some special drugs approved for emergency use to prevent or treat this disease still, there is a huge concern regarding their effectiveness, adverse effects, and most importantly, their efficacy against the new variants. A cascade of immune-inflammatory responses is involved with the pathogenesis and severe complications with COVID-19. People with dysfunctional and compromised immune systems display severe complications, including acute respiratory distress syndrome, sepsis, multiple organ failure etc., when they get infected with the SARS-CoV-2 virus. Plant-derived natural immune-suppressant compounds, such as resveratrol, quercetin, curcumin, berberine, luteolin, etc., have been reported to inhibit pro-inflammatory cytokines and chemokines. Therefore, natural products with immunomodulatory and anti-inflammatory potential could be plausible targets to treat this contagious disease. This review aims to delineate the clinical trials status and outcomes of natural compounds with immunomodulatory potential in COVID-19 patients along with the outcomes of their in-vivo studies. In clinical trials several natural immunomodulators resulted in significant improvement of COVID-19 patients by diminishing COVID-19 symptoms such as fever, cough, sore throat, and breathlessness. Most importantly, they reduced the duration of hospitalization and the need for supplemental oxygen therapy, improved clinical outcomes in patients with COVID-19, especially weakness, and eliminated acute lung injury and acute respiratory distress syndrome. This paper also discusses many potent natural immunomodulators yet to undergo clinical trials. In-vivo studies with natural immunomodulators demonstrated reduction of a wide range of proinflammatory cytokines. Natural immunomodulators that were found effective, safe, and well tolerated in small-scale clinical trials are warranted to undergo large-scale trials to be used as drugs to treat COVID-19 infections. Alongside, compounds yet to test clinically must undergo clinical trials to find their effectiveness and safety in the treatment of COVID-19 patients.
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Affiliation(s)
- Raushanara Akter
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Md Rashidur Rahman
- Department of Pharmacy, Faculty of Biological Science and Technology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Zainab Syed Ahmed
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
| | - Afrina Afrose
- School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh
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16
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Shi RJ, Ye MY, Liu Y, Wu QS, Abd Allah EF, Zhou N. Exogenous Melatonin Regulates Physiological Responses and Active Ingredient Levels in Polygonum cuspidatum under Drought Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112141. [PMID: 37299122 DOI: 10.3390/plants12112141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/21/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023]
Abstract
Polygonum cuspidatum, an important medicinal plant, is rich in resveratrol and polydatin, but it frequently suffers from drought stress in the nursery stage, which inhibits the plant's growth, active components concentrations, and the price of rhizome in the later stage. The purpose of this study was to analyze how exogenous 100 mM melatonin (MT) (an indole heterocyclic compound) affected biomass production, water potential, gas exchange, antioxidant enzyme activities, active components levels, and resveratrol synthase (RS) gene expression of P. cuspidatum seedlings growing under well-watered and drought stress conditions. The 12-week drought treatment negatively affected the shoot and root biomass, leaf water potential, and leaf gas exchange parameters (photosynthetic rate, stomatal conductance, and transpiration rate), whereas the application of exogenous MT significantly increased these variables of stressed and non-stressed seedlings, accompanied by higher increases in the biomass, photosynthetic rate, and stomatal conductance under drought versus well-watered conditions. Drought treatment raised the activities of superoxide dismutase, peroxidase, and catalase in the leaves, while the MT application increased the activities of the three antioxidant enzymes regardless of soil moistures. Drought treatment reduced root chrysophanol, emodin, physcion, and resveratrol levels, while it dramatically promoted root polydatin levels. At the same time, the application of exogenous MT significantly increased the levels of the five active components, regardless of soil moistures, with the exception of no change in the emodin under well-watered conditions. The MT treatment also up-regulated the relative expression of PcRS under both soil moistures, along with a significantly positive correlation between the relative expression of PcRS and resveratrol levels. In conclusion, exogenous MT can be employed as a biostimulant to enhance plant growth, leaf gas exchange, antioxidant enzyme activities, and active components of P. cuspidatum under drought stress conditions, which provides a reference for drought-resistant cultivation of P. cuspidatum.
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Affiliation(s)
- Ru-Jie Shi
- College of Food and Biology Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Ming-Yan Ye
- College of Food and Biology Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Yue Liu
- College of Food and Biology Engineering, Chongqing Three Gorges University, Chongqing 404120, China
| | - Qiang-Sheng Wu
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Elsayed Fathi Abd Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Nong Zhou
- College of Food and Biology Engineering, Chongqing Three Gorges University, Chongqing 404120, China
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17
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Tian S, Chen Y, Wang Q, Liu Z, Li Y, Zhao X. Effects of four disease-controlling agents (chlorothalonil, CuCl 2, harpin, and melatonin) on postharvest jujube fruit quality. Sci Rep 2023; 13:8209. [PMID: 37217535 DOI: 10.1038/s41598-023-35392-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 05/17/2023] [Indexed: 05/24/2023] Open
Abstract
Postharvest senescence and disease development can reduce the nutritional value of fresh jujube fruit. Herein, four different disease-controlling agents (chlorothalonil, CuCl2, harpin and melatonin) were separately applied to fresh jujube fruit, and all improved postharvest quality (evaluated by disease severity, antioxidant accumulation and senescence) relative to controls. Disease severity was drastically inhibited by these agents, in the order chlorothalonil > CuCl2 > harpin > melatonin. However, chlorothalonil residues were detected even after storage for 4 weeks. These agents increased the activities of defense enzymes including phenylalanine ammonia-lyase, polyphenol oxidase, glutathione reductase and glutathione S-transferase, as well as accumulation of antioxidant compounds such as ascorbic acid, glutathione, flavonoids and phenolics, in postharvest jujube fruit. The enhanced antioxidant content and antioxidant capacity (evaluated by Fe3+ reducing power) was ordered melatonin > harpin > CuCl2 > chlorothalonil. All four agents significantly delayed senescence (evaluated by weight loss, respiration rate and firmness), with the effect ordered CuCl2 > melatonin > harpin > chlorothalonil. Moreover, treatment with CuCl2 also increased copper accumulation ~ threefold in postharvest jujube fruit. Among the four agents, postharvest treatment with CuCl2 could be considered most appropriate for improving postharvest jujube fruit quality under low temperature conditions without sterilization.
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Affiliation(s)
- Shan Tian
- Life Science College, Luoyang Normal University, Luoyang, 471934, Henan, China
| | - Ying Chen
- Life Science College, Luoyang Normal University, Luoyang, 471934, Henan, China
| | - Qianjin Wang
- Life Science College, Luoyang Normal University, Luoyang, 471934, Henan, China
| | - Zhilan Liu
- Grain and Oil Crops Technology Extension Station, Yongchuan, 402160, Chongqing, China
| | - Yueyue Li
- Life Science College, Luoyang Normal University, Luoyang, 471934, Henan, China.
| | - Xusheng Zhao
- Life Science College, Luoyang Normal University, Luoyang, 471934, Henan, China.
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18
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Gupta R. Melatonin: A promising candidate for maintaining food security under the threat of phytopathogens. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 198:107691. [PMID: 37031544 DOI: 10.1016/j.plaphy.2023.107691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/17/2023] [Accepted: 04/03/2023] [Indexed: 05/07/2023]
Abstract
Plant immune response is tightly controlled by an interplay of various phytohormones and plant growth regulators. Among them, the role of salicylic acid, jasmonic acid, and ethylene is well established while some others such as nitric oxide, polyamines, and hydrogen sulfide have appeared to be key regulators of plant immunity. In addition, some other chemicals, such as melatonin (N-acetyl-5-methoxytryptamine), are apparently turning out to be the novel regulators of plant defense responses. Melatonin has shown promising results in enhancing resistance of plants to a variety of pathogens including fungi, bacteria, and viruses, however, the molecular mechanism of melatonin-mediated plant immune regulation is currently elusive. Evidence gathered so far indicates that melatonin regulates plant immunity by (1) facilitating the maintenance of ROS homeostasis, (2) interacting with other phytohormones and growth regulators, and (3) inducing the accumulation of defense molecules. Therefore, engineering crops with improved melatonin production could enhance crop productivity under stress conditions. This review extends our understanding of the multifaceted role of melatonin in the regulation of plant defense response and presents a putative pathway of melatonin functioning and its interaction with phytohormones during biotic stress.
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Affiliation(s)
- Ravi Gupta
- College of General Education, Kookmin University, Seoul, 02707, South Korea.
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19
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Zhao J, Hu J. Melatonin: Current status and future perspectives in horticultural plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1140803. [PMID: 37035081 PMCID: PMC10076644 DOI: 10.3389/fpls.2023.1140803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/01/2023] [Indexed: 06/19/2023]
Abstract
Global warming in this century increases incidences of various abiotic stresses, restricting plant growth and productivity and posing a severe threat to global food production and security. Different phytohormones are produced by plants to mitigate the adverse effects of these stresses. One such phytohormone is melatonin (MEL), which, being a potential bio-stimulator, helps to govern a wide array of functions in horticultural crops. Recent advancements have determined the role of MEL in plants' responses to abiotic stresses. MEL enhances physiological functions such as seed germination, growth and development, seedling growth, root system architecture, and photosynthetic efficiency. The potential function of MEL in stressful environments is to regulate the enzymatic and non-enzymatic antioxidant activity, thus playing a role in the substantial scavenging of reactive oxygen species (ROS). Additionally, MEL, as a plant growth regulator and bio-stimulator, aids in promoting plant tolerance to abiotic stress, mainly through improvements in nutrient uptake, osmolyte production, and cellular membrane stability. This review, therefore, focuses on the possible functions of MEL in the induction of different abiotic stresses in horticultural crops. Therefore, this review would help readers learn more about MEL in altered environments and provide new suggestions on how this knowledge could be used to develop stress tolerance.
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20
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Gao Y, Chen H, Chen D, Hao G. Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses. J Pineal Res 2023; 74:e12850. [PMID: 36585354 DOI: 10.1111/jpi.12850] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 01/01/2023]
Abstract
The expansion of gene families during evolution could generate functional diversity among their members to regulate plant growth and development. Melatonin, a phylogenetically ancient molecule, is vital for many aspects of a plant's life. Understanding the functional diversity of the molecular players involved in melatonin biosynthesis, signaling, and metabolism will facilitate the regulation of plant phenotypes. However, the molecular mechanism of melatonin response signaling elements in regulating this network still has many challenges. Here, we provide an in-depth analysis of the functional diversity and evolution of molecular components in melatonin signaling pathway. Genetic analysis of multiple mutants in plant species will shed light on the role of gene families in melatonin regulatory pathways. Phylogenetic analysis of these genes was performed, which will facilitate the identification of melatonin-related genes for future study. Based on the abovementioned signal networks, the mechanism of these genes was summarized to provide reference for studying the regulatory mechanism of melatonin in plant phenotypes. We hope that this work will facilitate melatonin research in higher plants and finely tuned spatio-temporal regulation of melatonin signaling.
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Affiliation(s)
- Yangyang Gao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, P. R. China
| | - Huimin Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Dongyu Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, P. R. China
| | - Gefei Hao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, P. R. China
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
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21
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Manasseh R, Berim A, Kappagantu M, Moyo L, Gang DR, Pappu HR. Pathogen-triggered metabolic adjustments to potato virus Y infection in potato. FRONTIERS IN PLANT SCIENCE 2023; 13:1031629. [PMID: 36891131 PMCID: PMC9986423 DOI: 10.3389/fpls.2022.1031629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/05/2022] [Indexed: 06/18/2023]
Abstract
Potato (Solanum tuberosum L) is affected by several viral pathogens with the most economically damaging being potato virus Y (PVY). At least nine biologically distinct variants of PVY are known to attack potato, with necrotic types named PVYNTN and PVYN-Wi being the most recent additions to the list. So far, the molecular plant-virus interactions underlying this pathogenicity are not fully understood. In this study, gas chromatography coupled with mass spectroscopy (GC-MS) was used for an untargeted investigation of the changes in leaf metabolomes of PVY-resistant cultivar Premier Russet, and a susceptible cultivar, Russet Burbank, following inoculation with three PVY strains, PVYNTN, PVYN-Wi, and PVYO. Analysis of the resulting GC-MS spectra with the online software Metaboanalyst (version 5.0) uncovered several common and strain-specific metabolites that are induced by PVY inoculation. In Premier Russet, the major overlap in differential accumulation was found between PVYN-Wi and PVYO. However, the 14 significant pathways occurred solely due to PVYN-Wi. In contrast, the main overlap in differential metabolite profiles and pathways in Russet Burbank was between PVYNTN and PVYO. Overall, limited overlap was observed between PVYNTN and PVYN-Wi. As a result, PVYN-Wi-induced necrosis may be mechanistically distinguishable from that of PVYNTN. Furthermore, 10 common and seven cultivar-specific metabolites as potential indicators of PVY infection and susceptibility/resistance were identified by using PLS-DA and ANOVA. In Russet Burbank, glucose-6-phosphate and fructose-6-phosphate were particularly affected by strain-time interaction. This highlights the relevance of the regulation of carbohydrate metabolism for defense against PVY. Some strain- and cultivar-dependent metabolite changes were also observed, reflecting the known genetic resistance-susceptibility dichotomy between the two cultivars. Consequently, engineering broad-spectrum resistance may be the most effective breeding strategy for managing these necrotic strains of PVY.
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Affiliation(s)
- Richard Manasseh
- Department of Plant Pathology, Washington State University, Pullman, WA, United States
| | - Anna Berim
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Madhu Kappagantu
- Department of Plant Pathology, Washington State University, Pullman, WA, United States
| | - Lindani Moyo
- Department of Plant Pathology, Washington State University, Pullman, WA, United States
| | - David R. Gang
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Hanu R. Pappu
- Department of Plant Pathology, Washington State University, Pullman, WA, United States
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22
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Ahmad R, Manzoor M, Muhammad HMD, Altaf MA, Shakoor A. Exogenous Melatonin Spray Enhances Salinity Tolerance in Zizyphus Germplasm: A Brief Theory. Life (Basel) 2023; 13:life13020493. [PMID: 36836849 PMCID: PMC9958626 DOI: 10.3390/life13020493] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/24/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Fruit orchards are frequently irrigated with brackish water. Irrigation with poor quality water is also a major cause of salt accumulation in soil. An excess of salts results in stunted growth, poor yield, inferior quality and low nutritional properties. Melatonin is a low molecular weight protein that shows multifunctional, regulatory and pleiotropic behavior in the plant kingdom. Recently, its discovery brought a great revolution in sustainable fruit production under salinity-induced environments. Melatonin contributed to enhanced tolerance in Zizyphus fruit species by improving the plant defense system's potential to cope with the adverse effects of salinity. The supplemental application of melatonin has improved the generation of antioxidant assays and osmolytes involved in the scavenging of toxic ROS. The tolerance level of the germplasm is chiefly based on the activation of the defense system against the adverse effects of salinity. The current study explored the contribution of melatonin against salinity stress and provides information regarding which biochemical mechanism can be effective and utilized for the development of salt-tolerant germplasm in Zizyphus.
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Affiliation(s)
- Riaz Ahmad
- Department of Horticulture, The University of Agriculture, Dera Ismail Khan 29220, Pakistan
| | - Meryam Manzoor
- Department of Horticulture, Bahauddin Zakariya University, Multan 60800, Pakistan
| | | | | | - Awais Shakoor
- Teagasc, Environment, Soils and Land Use Department, Johnstown Castle, Co., Y35 Y521 Wexford, Ireland
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23
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Hernández-Ruiz J, Giraldo-Acosta M, El Mihyaoui A, Cano A, Arnao MB. Melatonin as a Possible Natural Anti-Viral Compound in Plant Biocontrol. PLANTS (BASEL, SWITZERLAND) 2023; 12:781. [PMID: 36840129 PMCID: PMC9961163 DOI: 10.3390/plants12040781] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Melatonin is a multifunctional and ubiquitous molecule. In animals, melatonin is a hormone that is involved in a wide range of physiological activities and is also an excellent antioxidant. In plants, it has been considered a master regulator of multiple physiological processes as well as of hormonal homeostasis. Likewise, it is known for its role as a protective biomolecule and activator of tolerance and resistance against biotic and abiotic stress in plants. Since infections by pathogens such as bacteria, fungi and viruses in crops result in large economic losses, interest has been aroused in determining whether melatonin plays a relevant role in plant defense systems against pathogens in general, and against viruses in particular. Currently, several strategies have been applied to combat infection by pathogens, one of them is the use of eco-friendly chemical compounds that induce systemic resistance. Few studies have addressed the use of melatonin as a biocontrol agent for plant diseases caused by viruses. Exogenous melatonin treatments have been used to reduce the incidence of several virus diseases, reducing symptoms, virus titer, and even eradicating the proliferation of viruses such as Tobacco Mosaic Virus, Apple Stem Grooving Virus, Rice Stripe Virus and Alfalfa Mosaic Virus in tomato, apple, rice and eggplant, respectively. The possibilities of using melatonin as a possible natural virus biocontrol agent are discussed.
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Harisha CB, Narayanpur VB, Rane J, Ganiger VM, M. Prasanna S, Vishwanath YC, G. Reddi S, Halli HM, Boraiah KM, Basavaraj PS, Mahmoud EA, Casini R, Elansary HO. Promising Bioregulators for Higher Water Productivity and Oil Quality of Chia under Deficit Irrigation in Semiarid Regions. PLANTS (BASEL, SWITZERLAND) 2023; 12:662. [PMID: 36771746 PMCID: PMC9921998 DOI: 10.3390/plants12030662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Appropriate water management practices are essential for the successful cultivation of chia in water-scarce situations of semiarid regions. This is highly essential when new crops such as chia are introduced for ensuring diversity and water saving. Therefore, field trials (2020-21 and 2021-22) were conducted to understand the impact of deficit irrigation and bioregulators (BRs) on the seed yield, water productivity, and oil quality of chia. The effect of foliar application of BRs such as thiourea (TU; 400 ppm), salicylic acid (SA; 1.0 mM), potassium nitrate (KN; 0.15%), potassium silicate (KS; 100 ppm), kaolin (KO; 5%), and sodium benzoate (SB; 200 ppm) were monitored at different levels of irrigation: 100 (I100), 75 (I75), 50 (I50), and 25 (I25) percent of cumulative pan evaporation (CPE). Deficit irrigation at I25, I50, and I75 led to 55.3, 20.1, and 3.3% reductions in seed yield; 42.5, 22.5, and 4.2% in oil yield; and 58.9, 24.5, and 5.7% in omega-3 yield, respectively, relative to I100. Bioregulators could reduce the adverse impact of water deficit stress on seed, oil, and omega-3 yield. However, their beneficial effect was more conspicuous under mild water stress (I75), as revealed by higher seed yield (4.3-6.9%), oil yield (4.4-7.1%), and omega-3 yield (4.7-8.5%) over control (I100 + no BRs). Further, BRs (KN, TU, and SA) maintained oil quality in terms of linolenic acid and polyunsaturated fatty acid contents, even under mild stress (I75). Foliar application of KN, TU, and SA could save water to an extent of 36-40%. Therefore, the adverse impact of deficit irrigation on seed, oil, and omega-3 yields of chia could be minimized using BRs such as KN, TU, and SA, which can also contribute to improved water productivity.
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Affiliation(s)
- Chowdasandra Byregowda Harisha
- ICAR–National Institute of Abiotic Stress Management, Baramati, Pune 413115, Maharashtra, India
- College of Horticulture, University of Horticultural Sciences, Bagalkot 587104, Karnataka, India
| | - Vijaykumar B. Narayanpur
- College of Horticulture, University of Horticultural Sciences, Bagalkot 587104, Karnataka, India
| | - Jagadish Rane
- ICAR–National Institute of Abiotic Stress Management, Baramati, Pune 413115, Maharashtra, India
| | - Vasant M. Ganiger
- College of Horticulture, University of Horticultural Sciences, Bagalkot 587104, Karnataka, India
| | - Sugooru M. Prasanna
- College of Horticulture, University of Horticultural Sciences, Bagalkot 587104, Karnataka, India
| | | | - Sanjeevraddi G. Reddi
- College of Horticulture, University of Horticultural Sciences, Bagalkot 587104, Karnataka, India
| | - Hanamant M. Halli
- ICAR–National Institute of Abiotic Stress Management, Baramati, Pune 413115, Maharashtra, India
| | - Karnar Manjanna Boraiah
- ICAR–National Institute of Abiotic Stress Management, Baramati, Pune 413115, Maharashtra, India
| | | | - Eman A. Mahmoud
- Department of Food Industries, Faculty of Agriculture, Damietta University, Damietta 34511, Egypt
| | - Ryan Casini
- School of Public Health, University of California, 2121 Berkeley Way, Berkeley, CA 94704, USA
| | - Hosam O. Elansary
- Department of Plant Production, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
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Zheng Y, Wang X, Cui X, Wang K, Wang Y, He Y. Phytohormones regulate the abiotic stress: An overview of physiological, biochemical, and molecular responses in horticultural crops. FRONTIERS IN PLANT SCIENCE 2023; 13:1095363. [PMID: 36684767 PMCID: PMC9853409 DOI: 10.3389/fpls.2022.1095363] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Recent changing patterns of global climate have turned out to be a severe hazard to the horticulture crops production. A wide range of biotic and abiotic stresses often affect plants due to their sessile nature. Horticultural crop losses are mainly caused by abiotic factors such as drought, salt, heat, cold, floods, and ultraviolet radiation. For coping up with these adversities, well-developed mechanisms have been evolved in plants, which play a role in perceiving stress signals and enabling optimal growth responses. Interestingly, the use of phytohormones for suppressing the impact of abiotic stress has gained much attention in recent decades. For circumvention of stress at various levels, including physiological, molecular, as well as biochemical, a sophisticated mechanism is reported to be provided by the phytohormones, thus labeling these phytohormones a significant role in plant growth and development. Phytohormones can improves tolerance against abiotic stresses by increasing seed germination, seedling growth, leaf photosynthesis, root growth, and antioxidant enzymes and reducing the accumulation of reactive oxygen species, malonaldehyde, and electrolyte leakage. Recent discoveries highlight the significant role of a variety of phytohormones including melatonin (MEL), Gamma-aminobutyric acid (GABA), jasmonic acid (JA), salicylic acid (SA), brassinosteroids (BRs), and strigolactones (SLs) in abiotic stress tolerance enhancement of horticultural plants. Thus, current review is aimed to summarize the developmental concepts regarding role of phytohormones in abiotic-stress mitigation, mainly in horticultural crops, along with the description of recent studies which identified the role of different phytohormones in stressed environments. Hence, such a review will help in paving the path for sustainable agriculture growth via involvement of phytohormones in enhancement of abiotic stress tolerance of horticultural crops.
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Affiliation(s)
- Yi Zheng
- School of Life Science, Changchun SCI-TECH University, Changchun, Jilin, China
| | - Xiaonan Wang
- School of Life Science, Changchun SCI-TECH University, Changchun, Jilin, China
| | - Xin Cui
- School of Life Science, Changchun SCI-TECH University, Changchun, Jilin, China
| | - Kefeng Wang
- School of Life Science, Changchun SCI-TECH University, Changchun, Jilin, China
| | - Yong Wang
- School of Life Science, Changchun SCI-TECH University, Changchun, Jilin, China
| | - Yuhui He
- School of Architecture and Urban Planning, Changchun University of Architecture and Civil Engineering, Changchun, Jilin, China
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Raza A, Charagh S, García-Caparrós P, Rahman MA, Ogwugwa VH, Saeed F, Jin W. Melatonin-mediated temperature stress tolerance in plants. GM CROPS & FOOD 2022; 13:196-217. [PMID: 35983948 PMCID: PMC9397135 DOI: 10.1080/21645698.2022.2106111] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Global climate changes cause extreme temperatures and a significant reduction in crop production, leading to food insecurity worldwide. Temperature extremes (including both heat and cold stresses) is one of the most limiting factors in plant growth and development and severely affect plant physiology, biochemical, and molecular processes. Biostimulants like melatonin (MET) have a multifunctional role that acts as a "defense molecule" to safeguard plants against the noxious effects of temperature stress. MET treatment improves plant growth and temperature tolerance by improving several defense mechanisms. Current research also suggests that MET interacts with other molecules, like phytohormones and gaseous molecules, which greatly supports plant adaptation to temperature stress. Genetic engineering via overexpression or CRISPR/Cas system of MET biosynthetic genes uplifts the MET levels in transgenic plants and enhances temperature stress tolerance. This review highlights the critical role of MET in plant production and tolerance against temperature stress. We have documented how MET interacts with other molecules to alleviate temperature stress. MET-mediated molecular breeding would be great potential in helping the adverse effects of temperature stress by creating transgenic plants.
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Affiliation(s)
- Ali Raza
- College of Agriculture, Oil Crops Research Institute, Fujian Agriculture and Forestry University (FAFU), Fuzhou, Fujian, China
| | - Sidra Charagh
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Hangzhou, Zhejiang, China
| | - Pedro García-Caparrós
- Agronomy Department of Superior School Engineering, University of Almería, Almería, Spain
| | - Md Atikur Rahman
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan, Korea
| | | | - Faisal Saeed
- Department of Agricultural Genetic Engineering, Faculty of Agricultural Sciences and Technologies, Nigde Omer Halisdemir University, Turkey
| | - Wanmei Jin
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, Peking, China
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Wang D, Randhawa MS, Azam M, Liu H, Ejaz S, Ilahy R, Qadri R, Khan MI, Umer MA, Khan MA, Wang K. Exogenous melatonin treatment reduces postharvest senescence and maintains the quality of papaya fruit during cold storage. FRONTIERS IN PLANT SCIENCE 2022; 13:1039373. [PMID: 36561448 PMCID: PMC9763995 DOI: 10.3389/fpls.2022.1039373] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Exogenous melatonin (EMT) application has been used to reduce postharvest senescence and improve the quality and antioxidant enzyme activities of papaya fruits during cold storage. METHODS The effects of exogenous melatonin application (1. 5 mM) were investigated on papaya fruits during cold storage (10°C ± 2°C) for 28 days in the present study. RESULTS AND DISCUSSION The EMT treatment delayed postharvest senescence significantly with lower maturing status compared with untreated papaya fruits (control). In addition, EMT treatment maintained substantially higher titratable acidity values and ascorbic acid content but significantly lower soluble solids content and lower weight loss compared with the untreated fruits. Concerning the antioxidant capacity, the EMT-treated papaya fruit exhibited markedly higher total phenolic content and, consequently, higher DPPH-radical scavenging activity than the control group. The EMT treatment not only kept a higher enzyme activity of superoxide dismutase, peroxidase, and catalase but also significantly inhibited the accumulation of hydrogen peroxide and malondialdehyde, along with satisfying sensory attributes. CONCLUSION The findings of this study indicated that EMT application could be commercially used as an eco-friendly strategy to reduce postharvest senescence and maintain the fresh-like quality traits of papaya fruit during cold storage.
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Affiliation(s)
- Dengliang Wang
- 1Institute of Fruit Tree Research, Quzhou Academy of Agriculture and Forestry Science, Quzhou, China
| | - Mazhar Saeed Randhawa
- Pomology Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Azam
- Pomology Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Hongru Liu
- Institute of Crop Breeding & Cultivation Research, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Shaghef Ejaz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Riadh Ilahy
- Laboratory of Horticulture, National Agricultural Research Institute of Tunisia (INRAT), University of Carthage, Ariana, Tunisia
| | - Rashad Qadri
- Pomology Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Imran Khan
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Ali Umer
- Pomology Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Arslan Khan
- Pomology Laboratory, Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Ke Wang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs/Anhui Engineering Laboratory for Agro-products Processing, Anhui Agricultural University, Hefei, China
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Sati H, Khandelwal A, Pareek S. Effect of exogenous melatonin in fruit postharvest, crosstalk with hormones, and defense mechanism for oxidative stress management. FOOD FRONTIERS 2022. [DOI: 10.1002/fft2.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Hansika Sati
- Department of Agriculture and Environmental Sciences National Institute of Food Technology Entrepreneurship and Management Kundli Sonipat India
| | - Aparna Khandelwal
- Department of Biochemistry Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences Rohtak Haryana India
| | - Sunil Pareek
- Department of Agriculture and Environmental Sciences National Institute of Food Technology Entrepreneurship and Management Kundli Sonipat India
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Exogenous Melatonin Reprograms the Rhizosphere Microbial Community to Modulate the Responses of Barley to Drought Stress. Int J Mol Sci 2022; 23:ijms23179665. [PMID: 36077064 PMCID: PMC9456345 DOI: 10.3390/ijms23179665] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 02/08/2023] Open
Abstract
The rhizospheric melatonin application-induced drought tolerance has been illuminated in various plant species, while the roles of the rhizosphere microbial community in this process are still unclear. Here, the diversity and functions of the rhizosphere microbial community and related physiological parameters were tested in barley under the rhizospheric melatonin application and drought. Exogenous melatonin improved plant performance under drought via increasing the activities of non-structural carbohydrate metabolism enzymes and activating the antioxidant enzyme systems in barley roots under drought. The 16S/ITS rRNA gene sequencing revealed that drought and melatonin altered the compositions of the microbiome. Exogenous melatonin increased the relative abundance of the bacterial community in carbohydrate and carboxylate degradation, while decreasing the relative abundance in the pathways of fatty acid and lipid degradation and inorganic nutrient metabolism under drought. These results suggest that the effects of melatonin on rhizosphere microbes and nutrient condition need to be considered in its application for crop drought-resistant cultivation.
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Altaf MA, Shahid R, Altaf MM, Kumar R, Naz S, Kumar A, Alam P, Tiwari RK, Lal MK, Ahmad P. Melatonin: First-line soldier in tomato under abiotic stress current and future perspective. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:188-197. [PMID: 35700585 DOI: 10.1016/j.plaphy.2022.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/13/2022] [Accepted: 06/02/2022] [Indexed: 05/26/2023]
Abstract
Melatonin is a natural, multifunctional, nontoxic, regulatory, and ubiquitous biomolecule, having low molecular weight and pleiotropic effects in the plant kingdom. It is a recently discovered plant master regulator which has a crucial role under abiotic stress conditions (salinity, drought, heat, cold, alkalinity, acid rain, ozone, and metals stress). In the solanaceous family, the tomato is highly sensitive to abiotic stresses that affect its growth and development, ultimately hampering production and productivity. Melatonin acts as a strong antioxidant, bio-stimulator, and growth regulator, facilitating photosynthesis, delaying leaf senescence, and increasing the antioxidant enzymes system through direct scavenging of reactive oxygen species (ROS) under abiotic stresses. In addition, melatonin also boosts morphological traits such as vegetative growth, leaf photosynthesis, root architecture system, mineral nutrient elements, and antioxidant activities in tomato plants, confirming their tolerances against salinity, drought, heat, cold, alkalinity, acid rain, chemical, pathogen, and metals stress. In this review, an attempt has been made to summarize the potential role of melatonin for tomato plant endurance towards abiotic stresses, along with the known relationship between the two.
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Affiliation(s)
| | - Rabia Shahid
- School of Management, Hainan University, Haikou, 570228, China
| | | | - Ravinder Kumar
- ICAR-Central Potato Research Institute, Shimla, 171001, HP, India
| | - Safina Naz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Awadhesh Kumar
- ICAR-National Rice Research Institute, Cuttack, 753006, Odisha, India
| | - Pravej Alam
- Department of Biology, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Alkharj, 11942, Saudi Arabia
| | - Rahul Kumar Tiwari
- ICAR-Central Potato Research Institute, Shimla, 171001, HP, India; ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Milan Kumar Lal
- ICAR-Central Potato Research Institute, Shimla, 171001, HP, India; ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Parvaiz Ahmad
- Department of Botany, GDC, Pulwama, 192301, Jammu and Kashmir, India.
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Exogenous Melatonin Alleviated Leaf Yellowing via Inhibiting Respiration and Ethylene Biosynthesis during Shelf Life in Pakchoi. PLANTS 2022; 11:plants11162102. [PMID: 36015405 PMCID: PMC9416342 DOI: 10.3390/plants11162102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/07/2022] [Accepted: 08/08/2022] [Indexed: 11/26/2022]
Abstract
Postharvest yellowing of leafy plant is a manifestation of senescence, and melatonin (MT) is known to delay leaf senescence in some higher plants. Herein, we investigated the effect of exogenous MT treatment on postharvest pakchoi by monitoring the ethylene biosynthesis and respiratory metabolism. Results showed that exogenous MT effectively extended the shelf life, delayed leaf yellowing, minimized the alteration in Fv/Fm ratio and maintained higher integrity of chloroplast in pakchoi. There was a significant correlation between yellowing index, respiration rate and ethylene production. MT treatments greatly delayed the yellowing process of pakchoi that was associated with the reduced activity of glycolysis pathway and tricarboxylic acid cycle (TCA), increased proportion of pentose phosphate pathway (PPP) in respiratory metabolism, as manifested by the lower activity of phosphohexose isomerase (PHI), succinate dehydrogenase (SDH) and cytochrome C oxidase (COX), downregulated the expression of their corresponding genes, but enhanced the activity and expression level of 6 phosphogluconate dehydrogenase (6PGDH). MT also markedly maintain chlorophyll content by inhibiting ethylene production and action during shelf life, likely a consequence of reduced activities of 1-aminocyclopropane-1-carboxylate (ACC) synthase (ACS) and ACC oxidase (ACO), as well as the expression levels of their related genes. These results collectively indicate that melatonin alleviated leaf yellowing of postharvest pakchoi might be attributed to the suppression of the ethylene biosynthesis and respiratory metabolism, and our findings contribute to provide a good candidate measure for extending shelf life and reducing postharvest loss of pakchoi.
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Commisso M, Negri S, Gecchele E, Fazion E, Pontoriero C, Avesani L, Guzzo F. Indolamine accumulation and TDC/ T5H expression profiles reveal the complex and dynamic regulation of serotonin biosynthesis in tomato ( Solanum lycopersicum L.). FRONTIERS IN PLANT SCIENCE 2022; 13:975434. [PMID: 36035661 PMCID: PMC9405198 DOI: 10.3389/fpls.2022.975434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Tryptamine and serotonin are indolamines that fulfill diverse biological functions in all kingdoms of life. Plants convert l-tryptophan into tryptamine and then serotonin via consecutive decarboxylation and hydroxylation reactions catalyzed by the enzymes tryptophan decarboxylase (TDC) and tryptamine 5-hydroxylase (T5H). Tryptamine and serotonin accumulate to high levels in the edible fruits and seeds of many plant species, but their biological roles in reproductive organs remain unclear and the metabolic pathways have not been characterized in detail. We identified three TDC genes and a single T5H gene in tomato (Solanum lycopersicum L.) by homology-based screening and confirmed their activity by heterologous expression in Nicotiana benthamiana. The co-analysis of targeted metabolomics and gene expression data revealed complex spatiotemporal gene expression and metabolite accumulation patterns that suggest the involvement of the serotonin pathway in multiple biological processes. Our data support a model in which SlTDC1 allows tryptamine to accumulate in fruits, SlTDC2 causes serotonin to accumulate in aerial vegetative organs, and SlTDC3 works with SlT5H to convert tryptamine into serotonin in the roots and fruits.
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Xie Q, Zhang Y, Cheng Y, Tian Y, Luo J, Hu Z, Chen G. The role of melatonin in tomato stress response, growth and development. PLANT CELL REPORTS 2022; 41:1631-1650. [PMID: 35575808 DOI: 10.1007/s00299-022-02876-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/19/2022] [Accepted: 04/20/2022] [Indexed: 05/27/2023]
Abstract
Melatonin has attracted widespread attention after its discovery in higher plants. Tomato is a key model economic crop for studying fleshy fruits. Many studies have shown that melatonin plays important role in plant stress resistance, growth, and development. However, the research progress on the role of melatonin and related mechanisms in tomatoes have not been systematically summarized. This paper summarizes the detection methods and anabolism of melatonin in tomatoes, including (1) the role of melatonin in combating abiotic stresses, e.g., drought, heavy metals, pH, temperature, salt, salt and heat, cold and drought, peroxidation hydrogen and carbendazim, etc., (2) the role of melatonin in combating biotic stresses, such as tobacco mosaic virus and foodborne bacillus, and (3) the role of melatonin in tomato growth and development, such as fruit ripening, postharvest shelf life, leaf senescence and root development. In addition, the future research directions of melatonin in tomatoes are explored in combination with the role of melatonin in other plants. This review can provide a theoretical basis for enhancing the scientific understanding of the role of melatonin in tomatoes and the improved breeding of fruit crops.
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Affiliation(s)
| | - Yu Zhang
- Chongqing University, Chongqing, China
| | | | | | | | - Zongli Hu
- Chongqing University, Chongqing, China
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Arabia A, Munné-Bosch S, Muñoz P. Melatonin triggers tissue-specific changes in anthocyanin and hormonal contents during postharvest decay of Angeleno plums. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 320:111287. [PMID: 35643621 DOI: 10.1016/j.plantsci.2022.111287] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/07/2022] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
Plum is a stone fruit that stands out for having a short shelf-life because of its high susceptibility to rapid deterioration. Part of this deterioration is explained by fruit overripening. Recently, the role of melatonin in delaying postharvest decay has been investigated but its regulatory function during overripening is still under extensive debate. In this study, to understand physiological events taking place in plums overripening and elucidate the role of melatonin on the postharvest quality of these fruits and its relationship to other plant hormones, Angeleno plums were sprayed with 10-4 M of melatonin solution immediately after harvest. We carried out tissue-specific (mesocarp and exocarp) analysis of total phenols and anthocyanin quantification, as well as the evaluation of different phytohormones by LC-MS/MS and fruit quality parameters. Results showed that during postharvest, endogenous melatonin contents decreased both in the mesocarp and the exocarp of Angeleno plums. Likewise, plum firmness also decreased and a strong correlation was found for this parameter with jasmonic acid (JA) and cytokinins. Conversely, after exogenous melatonin application, endogenous melatonin content increased both in mesocarp and exocarp but it had a differential effect depending on the plum tissue. Indeed, total phenol and anthocyanin contents arose by 21% and 58%, respectively, in the mesocarp after melatonin treatment but no variations were found in the exocarp of Angeleno plums. Hormonal analysis of Angeleno mesocarp also revealed an increase in the JA and its precursor, 12-oxo-phytodienoic acid (OPDA), on the fourth day after melatonin application as well as a positive correlation between melatonin and gibberellin 1 (GA1). These results suggest that melatonin may be acting as a signal molecule increasing phenolic compounds contents through direct regulation and by signaling with other phytohormones. Therefore, this research provides valuable information for understanding the regulatory role of melatonin and its relationship with plant hormones during overripening to contribute to improve the postharvest quality of plums.
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Affiliation(s)
- Alba Arabia
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Spain; Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona, Spain
| | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Spain; Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona, Spain
| | - Paula Muñoz
- Department of Evolutionary Biology, Ecology and Environmental Sciences, University of Barcelona, Barcelona, Spain; Research Institute of Nutrition and Food Safety, University of Barcelona, Barcelona, Spain.
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Zang H, Ma J, Wu Z, Yuan L, Lin ZQ, Zhu R, Bañuelos GS, Reiter RJ, Li M, Yin X. Synergistic Effect of Melatonin and Selenium Improves Resistance to Postharvest Gray Mold Disease of Tomato Fruit. FRONTIERS IN PLANT SCIENCE 2022; 13:903936. [PMID: 35812947 PMCID: PMC9257244 DOI: 10.3389/fpls.2022.903936] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/06/2022] [Indexed: 05/23/2023]
Abstract
Melatonin (MT) is a ubiquitous hormone molecule that is commonly distributed in nature. MT not only plays an important role in animals and humans but also has extensive functions in plants. Selenium (Se) is an essential micronutrient for animals and humans, and is a beneficial element in higher plants at low concentrations. Postharvest diseases caused by fungal pathogens lead to huge economic losses worldwide. In this study, tomato fruits were treated with an optimal sodium selenite (20 mg/L) and melatonin (10 μmol/L) 2 h and were stored for 7 days at room temperature simulating shelf life, and the synergistic effects of Se and MT collectively called Se-Mel on gray mold decay in tomato fruits by Botrytis cinerea was investigated. MT did not have antifungal activity against B. cinerea in vitro, while Se significantly inhibited gray mold development caused by B. cinerea in tomatoes. However, the interaction of MT and Se showed significant inhibition of the spread and growth of the disease, showing the highest control effect of 74.05%. The combination of MT with Se treatment enhanced the disease resistance of fruits by improving the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as well as increasing the gene expression level of pathogenesis-related (PR) proteins. Altogether, our results indicate that the combination of MT and Se would induce the activation of antioxidant enzymes and increase the expression of PR proteins genes that might directly enhance the resistance in tomato fruit against postharvest pathogenic fungus B. cinerea.
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Affiliation(s)
- Huawei Zang
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
- Key Laboratory of Functional Agriculture, Bio-Engineering Research Centre of Selenium, Suzhou Research Institute, University of Science and Technology of China, Suzhou, China
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
| | - Jiaojiao Ma
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
| | - Zhilin Wu
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
| | - Linxi Yuan
- Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, China
| | - Zhi-Qing Lin
- Department of Environmental Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
- Department of Biological Sciences, Southern Illinois University Edwardsville, Edwardsville, IL, United States
| | - Renbin Zhu
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
| | - Gary S. Bañuelos
- San Joaquin Valley Agricultural Sciences Center, United States Department of Agriculture – Agricultural Research Service, Parlier, CA, United States
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Miao Li
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agriculture University, Hefei, China
- The Central Area of Anhui Province Station for Integrative Agriculture, Research Institute of New Rural Development, Anhui Agricultural University, Hefei, China
| | - Xuebin Yin
- Key Laboratory of Functional Agriculture, Bio-Engineering Research Centre of Selenium, Suzhou Research Institute, University of Science and Technology of China, Suzhou, China
- Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
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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: 0] [Impact Index Per Article: 0] [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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Hassan MU, Mahmood A, Awan MI, Maqbool R, Aamer M, Alhaithloul HAS, Huang G, Skalicky M, Brestic M, Pandey S, El Sabagh A, Qari SH. Melatonin-Induced Protection Against Plant Abiotic Stress: Mechanisms and Prospects. FRONTIERS IN PLANT SCIENCE 2022; 13:902694. [PMID: 35755707 PMCID: PMC9218792 DOI: 10.3389/fpls.2022.902694] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/25/2022] [Indexed: 05/23/2023]
Abstract
Global warming in this century increases incidences of various abiotic stresses restricting plant growth and productivity and posing a severe threat to global food production and security. The plant produces different osmolytes and hormones to combat the harmful effects of these abiotic stresses. Melatonin (MT) is a plant hormone that possesses excellent properties to improve plant performance under different abiotic stresses. It is associated with improved physiological and molecular processes linked with seed germination, growth and development, photosynthesis, carbon fixation, and plant defence against other abiotic stresses. In parallel, MT also increased the accumulation of multiple osmolytes, sugars and endogenous hormones (auxin, gibberellic acid, and cytokinins) to mediate resistance to stress. Stress condition in plants often produces reactive oxygen species. MT has excellent antioxidant properties and substantially scavenges reactive oxygen species by increasing the activity of enzymatic and non-enzymatic antioxidants under stress conditions. Moreover, the upregulation of stress-responsive and antioxidant enzyme genes makes it an excellent stress-inducing molecule. However, MT produced in plants is not sufficient to induce stress tolerance. Therefore, the development of transgenic plants with improved MT biosynthesis could be a promising approach to enhancing stress tolerance. This review, therefore, focuses on the possible role of MT in the induction of various abiotic stresses in plants. We further discussed MT biosynthesis and the critical role of MT as a potential antioxidant for improving abiotic stress tolerance. In addition, we also addressed MT biosynthesis and shed light on future research directions. Therefore, this review would help readers learn more about MT in a changing environment and provide new suggestions on how this knowledge could be used to develop stress tolerance.
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Affiliation(s)
- Muhammad Umair Hassan
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Masood Iqbal Awan
- Department of Agronomy, Sub-Campus Depalpur, Okara, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Rizwan Maqbool
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Aamer
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
- Department of Agronomy, Sub-Campus Depalpur, Okara, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | | | - Guoqin Huang
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, Slovakia
| | - Saurabh Pandey
- Department of Agriculture, Guru Nanak Dev University, Amritsar, India
| | - Ayman El Sabagh
- Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
- Department of Field Crops, Faculty of Agriculture, Siirt University, Siirt, Turkey
| | - Sameer H. Qari
- Department of Biology, Al-Jumum University College, Umm Al-Qura University, Makkah, Saudi Arabia
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Huangfu L, Chen R, Lu Y, Zhang E, Miao J, Zuo Z, Zhao Y, Zhu M, Zhang Z, Li P, Xu Y, Yao Y, Liang G, Xu C, Zhou Y, Yang Z. OsCOMT, encoding a caffeic acid O-methyltransferase in melatonin biosynthesis, increases rice grain yield through dual regulation of leaf senescence and vascular development. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:1122-1139. [PMID: 35189026 PMCID: PMC9129082 DOI: 10.1111/pbi.13794] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 02/15/2022] [Indexed: 05/15/2023]
Abstract
Melatonin, a natural phytohormone in plants, plays multiple critical roles in plant growth and stress responses. Although melatonin biosynthesis-related genes have been suggested to possess diverse biological functions, their roles and functional mechanisms in regulating rice grain yield remain largely unexplored. Here, we uncovered the roles of a caffeic acid O-methyltransferase (OsCOMT) gene in mediating rice grain yield through dual regulation of leaf senescence and vascular development. In vitro and in vivo evidence revealed that OsCOMT is involved in melatonin biosynthesis. Transgenic assays suggested that OsCOMT significantly delays leaf senescence at the grain filling stage by inhibiting degradation of chlorophyll and chloroplast, which, in turn, improves photosynthesis efficiency. In addition, the number and size of vascular bundles in the culms and leaves were significantly increased in the OsCOMT-overexpressing plants, while decreased in the knockout plants, suggesting that OsCOMT plays a positive role in vascular development of rice. Further evidence indicated that OsCOMT-mediated vascular development might owe to the crosstalk between melatonin and cytokinin. More importantly, we found that OsCOMT is a positive regulator of grain yield, and overexpression of OsCOMT increase grain yield per plant even in a high-yield variety background, suggesting that OsCOMT can be used as an important target for enhancing rice yield. Our findings shed novel insights into melatonin-mediated leaf senescence and vascular development and provide a possible strategy for genetic improvement of rice grain yield.
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Affiliation(s)
- Liexiang Huangfu
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Rujia Chen
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Yue Lu
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
| | - Enying Zhang
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Agricultural CollegeQingdao Agricultural UniversityQingdaoChina
| | - Jun Miao
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
| | - Zhihao Zuo
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Yu Zhao
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Minyan Zhu
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Zihui Zhang
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Pengcheng Li
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Yang Xu
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Youli Yao
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Guohua Liang
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Chenwu Xu
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Yong Zhou
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
| | - Zefeng Yang
- Jiangsu Key Laboratory of Crop Genetics and PhysiologyKey Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhouChina
- Jiangsu Co‐Innovation Center for Modern Production Technology of Grain CropsYangzhou UniversityYangzhouChina
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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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Menhas S, Yang X, Hayat K, Aftab T, Bundschuh J, Arnao MB, Zhou Y, Zhou P. Exogenous Melatonin Enhances Cd Tolerance and Phytoremediation Efficiency by Ameliorating Cd-Induced Stress in Oilseed Crops: A Review. JOURNAL OF PLANT GROWTH REGULATION 2022; 41:922-935. [PMID: 0 DOI: 10.1007/s00344-021-10349-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/17/2021] [Indexed: 05/20/2023]
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Shamloo-Dashtpagerdi R, Aliakbari M, Lindlöf A, Tahmasebi S. A systems biology study unveils the association between a melatonin biosynthesis gene, O-methyl transferase 1 (OMT1) and wheat (Triticum aestivum L.) combined drought and salinity stress tolerance. PLANTA 2022; 255:99. [PMID: 35386021 DOI: 10.1007/s00425-022-03885-4] [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: 09/22/2021] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Enhanced levels of endogenous melatonin in the root of wheat, mainly through the OMT1 gene, augment the antioxidant system, reestablish redox homeostasis and are associated with combined stress tolerance. A systems biology approach, including a collection of computational analyses and experimental assays, led us to uncover some aspects of a poorly understood phenomenon, namely wheat (Triticum aestivum L.) combined drought and salinity stress tolerance. Accordingly, a cross-study comparison of stress experiments was performed via a meta-analysis of Expressed Sequence Tags (ESTs) data from wheat roots to uncover the overlapping gene network of drought and salinity stresses. Identified differentially expressed genes were functionally annotated by gene ontology enrichment analysis and gene network analysis. Among those genes, O-methyl transferase 1 (OMT1) was highlighted as a more important (hub) gene in the dual-stress response gene network. Afterwards, the potential roles of OMT1 in mediating physiochemical indicators of stress tolerance were investigated in two wheat genotypes differing in abiotic stress tolerance. Regression analysis and correspondence analysis (CA) confirmed that the expression profiles of the OMT1 gene and variations in melatonin content, antioxidant enzyme activities, proline accumulation, H2O2 and malondialdehyde (MDA) contents are significantly associated with combined stress tolerance. These results reveal that the OMT1 gene may contribute to wheat combined drought and salinity stress tolerance through augmenting the antioxidant system and re-establishing redox homeostasis, probably via the regulation of melatonin biosynthesis as a master regulator molecule. Our findings provide new insights into the roles of melatonin in wheat combined drought and salinity stress tolerance and suggest a novel plausible regulatory node through the OMT1 gene to improve multiple-stress tolerant crops.
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Affiliation(s)
| | - Massume Aliakbari
- Department of Crop Production and Plant Breeding, Shiraz University, Shiraz, Iran
| | | | - Sirus Tahmasebi
- Seed and Plant Improvement Research Department, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Iran
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42
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Verde A, Míguez JM, Gallardo M. Role of Melatonin in Apple Fruit during Growth and Ripening: Possible Interaction with Ethylene. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11050688. [PMID: 35270158 PMCID: PMC8912437 DOI: 10.3390/plants11050688] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/10/2022] [Accepted: 02/25/2022] [Indexed: 05/27/2023]
Abstract
The role of melatonin during the growth and ripening of apple fruit was studied using local varieties. The evolution of the growth and ripening parameters, including fruit size and weight, firmness, color change, sugar content, and ethylene production, was different in the five varieties studied, with yellow apples (Reineta and Golden) initiating the ripening process earlier than reddish ones (Teórica, Sanroqueña, and Caguleira). Changes in the melatonin and melatonin isomer 2 contents during growth and ripening were studied in Golden apples, as was the effect of the melatonin treatment (500 µM, day 124 post-anthesis) on the apple tree. Melatonin content varied greatly, with higher value in the skin than in the flesh. In the skin, melatonin increased at day 132 post-anthesis, when ethylene synthesis started. In the flesh, melatonin levels were high at the beginning of the growth phase and at the end of ripening. Melatonin isomer 2 was also higher once the ripening started and when ethylene began to increase. The melatonin treatment significantly advanced the ethylene production and increased the fruit size, weight, sugar content, and firmness. The data suggest that melatonin stimulates fruit ripening through the induction of ethylene synthesis, while melatonin treatments before ripening improve the final fruit quality.
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Affiliation(s)
- Antía Verde
- Departamento de Biología Vegetal, C.C. del Suelo, Universidade de Vigo, 36310 Vigo, Spain;
| | - Jesús M. Míguez
- Departamento de Biología Funcional, C.C. de la Salud, Universidade de Vigo, 36310 Vigo, Spain;
| | - Mercedes Gallardo
- Departamento de Biología Vegetal, C.C. del Suelo, Universidade de Vigo, 36310 Vigo, Spain;
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Exogenous Melatonin Improves Cold Tolerance of Strawberry (Fragaria × ananassa Duch.) through Modulation of DREB/CBF-COR Pathway and Antioxidant Defense System. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030194] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The strawberry (Fragaria × ananassa Duch.) is an important fruit crop cultivated worldwide for its unique taste and nutritional properties. One of the major risks associated with strawberry production is cold damage. Recently, melatonin has emerged as a multifunctional signaling molecule that influences plant growth and development and reduces adverse consequences of cold stress. The present study was conducted to investigate the defensive role of melatonin and its potential interrelation with abscisic acid (ABA) in strawberry plants under cold stress. The results demonstrate that melatonin application conferred improved cold tolerance on strawberry seedlings by reducing malondialdehyde and hydrogen peroxide contents under cold stress. Conversely, pretreatment of strawberry plants with 100 μM melatonin increased soluble sugar contents and different antioxidant enzyme activities (ascorbate peroxidase, catalase, and peroxidase) and non-enzymatic antioxidant (ascorbate and glutathione) activities under cold stress. Furthermore, exogenous melatonin treatment stimulated the expression of the DREB/CBF—COR pathways’ downstream genes. Interestingly, ABA treatment did not change the expression of the DREB/CBF—COR pathway. These findings imply that the DREB/CBF-COR pathway confers cold tolerance on strawberry seedlings through exogenous melatonin application. Taken together, our results reveal that melatonin (100 μM) pretreatment protects strawberry plants from the damages induced by cold stress through enhanced antioxidant defense potential and modulating the DREB/CBF—COR pathway.
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Melatonin Improves Drought Stress Tolerance of Tomato by Modulation Plant Growth, Root Architecture, Photosynthesis, and Antioxidant Defense System. Antioxidants (Basel) 2022; 11:antiox11020309. [PMID: 35204192 PMCID: PMC8868175 DOI: 10.3390/antiox11020309] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 02/01/2023] Open
Abstract
Tomato is an important vegetable that is highly sensitive to drought (DR) stress which impairs the development of tomato seedlings. Recently, melatonin (ME) has emerged as a nontoxic, regulatory biomolecule that regulates plant growth and enhances the DR tolerance mechanism in plants. The present study was conducted to examine the defensive role of ME in photosynthesis, root architecture, and the antioxidant enzymes’ activities of tomato seedlings subjected to DR stress. Our results indicated that DR stress strongly suppressed growth and biomass production, inhibited photosynthesis, negatively affected root morphology, and reduced photosynthetic pigments in tomato seedlings. Per contra, soluble sugars, proline, and ROS (reactive oxygen species) were suggested to be improved in seedlings under DR stress. Conversely, ME (100 µM) pretreatment improved the detrimental-effect of DR by restoring chlorophyll content, root architecture, gas exchange parameters and plant growth attributes compared with DR-group only. Moreover, ME supplementation also mitigated the antioxidant enzymes [APX (ascorbate peroxidase), CAT (catalase), DHAR (dehydroascorbate reductase), GST (glutathione S-transferase), GR (glutathione reductase), MDHAR (monodehydroascorbate reductase), POD (peroxidase), and SOD (superoxide dismutase)], non-enzymatic antioxidant [AsA (ascorbate), DHA (dehydroascorbic acid), GSH (glutathione), and GSSG, (oxidized glutathione)] activities, reduced oxidative damage [EL (electrolyte leakage), H2O2 (hydrogen peroxide), MDA (malondialdehyde), and O2•− (superoxide ion)] and osmoregulation (soluble sugars and proline) of tomato seedlings, by regulating gene expression for SOD, CAT, APX, GR, POD, GST, DHAR, and MDHAR. These findings determine that ME pretreatment could efficiently improve the seedlings growth, root characteristics, leaf photosynthesis and antioxidant machinery under DR stress and thereby increasing the seedlings’ adaptability to DR stress.
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Okeke ES, Ogugofor MO, Nkwoemeka NE, Nweze EJ, Okoye CO. Phytomelatonin: a potential phytotherapeutic intervention on COVID-19-exposed individuals. Microbes Infect 2022; 24:104886. [PMID: 34534695 PMCID: PMC8440003 DOI: 10.1016/j.micinf.2021.104886] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/03/2021] [Accepted: 09/03/2021] [Indexed: 12/23/2022]
Abstract
Phytomelatonin is a pleiotropic molecule that originated in higher plants with many diverse actions and is primarily an antioxidant. The recent identification and advancement of phytomelatonin unraveled the potential of this modulatory molecule being considered a new plant hormone, suggesting its relevance in treating respiratory infections, including COVID-19. Besides, this molecule is also involved in multiple hormonal, physiological, and biological processes at different levels of cell organization and has been marked for its ability to cross the blood-brain barrier and prominent antioxidant effects, reducing mitochondrial electron leakage, up-regulating antioxidant enzymes, acting as a free radical scavenger, and interfering with pro-inflammatory signaling pathways as seen in mood swings, body temperature, sleep, cancer, cardiac rhythms, and immunological regulation modulators. However, due to its diversity, availability, affordability, convenience, and high safety profile, phytomelatonin has also been suggested as a natural adjuvant. This review discussed the origin, content in various plant species, processes of extraction, and detection and therapeutic potentials of phytomelatonin in treating COVID-19-exposed individuals.
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Affiliation(s)
- Emmanuel Sunday Okeke
- Department of Biochemistry, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria; Natural Science Unit, SGS, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria; School of Environment and Safety Engineering, Jiangsu University, 212013, PR China; Organization of African Academic Doctors (OAAD), Off Kamiti Road, 25305000100, Nairobi, Kenya
| | - Martins Obinna Ogugofor
- Department of Biochemistry, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria; Department of Chemical Sciences, Coal City University, Enugu, Enugu State, Nigeria
| | - Ndidi Ethel Nkwoemeka
- Natural Science Unit, SGS, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria; Department of Microbiology, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria
| | - Ekene John Nweze
- Department of Biochemistry, University of Nigeria, Nsukka, 41000, Enugu State, Nigeria
| | - Charles Obinwanne Okoye
- School of Environment and Safety Engineering, Jiangsu University, 212013, PR China; Department of Zoology and Environmental Biology, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria; Biofuels Institute, Jiangsu University, Zhenjiang, 212013, PR China; Organization of African Academic Doctors (OAAD), Off Kamiti Road, 25305000100, Nairobi, Kenya.
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Verde A, Míguez JM, Leao-Martins JM, Gago-Martínez A, Gallardo M. Melatonin content in walnuts and other commercial nuts. Influence of cultivar, ripening and processing (roasting). J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2021.104180] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Jiang M, Ye F, Liu F, Brestic M, Li X. Rhizosphere melatonin application reprograms nitrogen-cycling related microorganisms to modulate low temperature response in barley. FRONTIERS IN PLANT SCIENCE 2022; 13:998861. [PMID: 36275608 PMCID: PMC9583915 DOI: 10.3389/fpls.2022.998861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/15/2022] [Indexed: 05/09/2023]
Abstract
Rhizospheric melatonin application has a positive effect on the tolerance of plants to low temperature; however, it remains unknown whether the rhizosphere microorganisms are involved in this process. The aim of this study was to investigate the effect of exogenous melatonin on the diversity and functioning of fungi and bacteria in rhizosphere of barley under low temperature. The results showed that rhizospheric melatonin application positively regulated the photosynthetic carbon assimilation and redox homeostasis in barley in response to low temperature. These effects might be associated with an altered diversity of microbial community in rhizosphere, especially the species and relative abundance of nitrogen cycling related microorganisms, as exemplified by the changes in rhizosphere metabolites in the pathways of amino acid synthesis and metabolism. Collectively, it was suggested that the altered rhizospheric microbial status upon melatonin application was associated with the response of barley to low temperature. This suggested that the melatonin induced microbial changes should be considered for its application in the crop cold-resistant cultivation.
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Affiliation(s)
- Miao Jiang
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Science, Changchun, China
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education of China, Northwest A & F University, Yangling, China
| | - Fan Ye
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Science, Changchun, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fulai Liu
- Faculty of Science, Department of Plant and Environmental Sciences, University of Copenhagen, Tåstrup, Denmark
| | - Marian Brestic
- Department of Plant Physiology, Slovak Agricultural University, Nitra, Slovakia
- Department of Botany and Plant Physiology, Czech University of Life Sciences Prague, Prague, Czechia
| | - Xiangnan Li
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Science, Changchun, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- Chinese Academy of Science (CAS) Engineering Laboratory for Eco-agriculture in Water Source of Liaoheyuan, Chinese Academy of Science, Changchun, China
- *Correspondence: Xiangnan Li,
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Mohamadi Esboei M, Ebrahimi A, Amerian MR, Alipour H. Melatonin confers fenugreek tolerance to salinity stress by stimulating the biosynthesis processes of enzymatic, non-enzymatic antioxidants, and diosgenin content. FRONTIERS IN PLANT SCIENCE 2022; 13:890613. [PMID: 36003823 PMCID: PMC9394454 DOI: 10.3389/fpls.2022.890613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/28/2022] [Indexed: 05/10/2023]
Abstract
Salinity-induced stress is widely considered a main plant-growth-limiting factor. The positive effects of melatonin in modulating abiotic stresses have led this hormone to be referred to as a growth regulator in plants. This study aims to show how melatonin protects fenugreek against the negative effects of salt stress. Different amounts of melatonin (30, 60, and 90 ppm), salinity stress (150 mM and 300 mM), and the use of both salinity and melatonin were used as treatments. The results showed that applying different melatonin levels to salinity-treated fenugreek plants effectively prevented the degradation of chlorophyll a, chlorophyll b, total chlorophyll, and carotenoid contents compared with salinity treatment without melatonin application. Besides, melatonin increases the biosynthesis of enzymatic and non-enzymatic antioxidants, thereby adjusting the content of reactive oxygen species, free radicals, electrolyte leakage, and malondialdehyde content. It was observed that applying melatonin increased the activity of potassium-carrying channels leading to the maintenance of ionic homeostasis and increased intracellular water content under salinity stress. The results revealed that melatonin activates the defense signaling pathways in fenugreek through the nitric oxide, auxin, and abscisic acid-dependent pathways. Melatonin, in a similar vein, increased the expression of genes involved in the biosynthesis pathway of diosgenin, a highly important steroidal sapogenin in medical and food industries, and hence the diosgenin content. When 150 mM salinity stress and 60 ppm melatonin were coupled, the diosgenin concentration rose by more than 5.5 times compared to the control condition. In conclusion, our findings demonstrate the potential of melatonin to enhance the plant tolerance to salinity stress by stimulating biochemical and physiological changes.
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Affiliation(s)
- Maryam Mohamadi Esboei
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
| | - Amin Ebrahimi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
- *Correspondence: Amin Ebrahimi,
| | - Mohamad Reza Amerian
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
| | - Hadi Alipour
- Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran
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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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Jiao J, Xia Y, Zhang Y, Wu X, Liu C, Feng J, Zheng X, Song S, Bai T, Song C, Wang M, Pang H. Phenylalanine 4-Hydroxylase Contributes to Endophytic Bacterium Pseudomonas fluorescens' Melatonin Biosynthesis. Front Genet 2021; 12:746392. [PMID: 34868217 PMCID: PMC8634680 DOI: 10.3389/fgene.2021.746392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/13/2021] [Indexed: 11/18/2022] Open
Abstract
Melatonin acts both as an antioxidant and as a growth regulatory substance in plants. Pseudomonas fluorescens endophytic bacterium has been shown to produce melatonin and increase plant resistance to abiotic stressors through increasing endogenous melatonin. However, in bacteria, genes are still not known to be melatonin-related. Here, we reported that the bacterial phenylalanine 4-hydroxylase (PAH) may be involved in the 5-hydroxytryptophan (5-HTP) biosynthesis and further influenced the subsequent production of melatonin in P. fluorescens. The purified PAH protein of P. fluorescens not only hydroxylated phenylalanine but also exhibited l-tryptophan (l-Trp) hydroxylase activity by converting l-Trp to 5-HTP in vitro. However, bacterial PAH displayed lower activity and affinity for l-Trp than l-phenylalanine. Notably, the PAH deletion of P. fluorescens blocked melatonin production by causing a significant decline in 5-HTP levels and thus decreased the resistance to abiotic stress. Overall, this study revealed a possible role for bacterial PAH in controlling 5-HTP and melatonin biosynthesis in bacteria, and expanded the current knowledge of melatonin production in microorganisms.
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Affiliation(s)
- Jian Jiao
- College of Horticulture, Henan Agricultural University, Zhengzhou, China.,Henan Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou, China
| | - Yan Xia
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Yingli Zhang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Xueli Wu
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Chonghuai Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, China
| | - Jiancan Feng
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Xianbo Zheng
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Shangwei Song
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Tuanhui Bai
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Chunhui Song
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Miaomiao Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Hongguang Pang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
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