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Zhang X, Qi S, Liu S, Mu H, Jiang Y. Exogenous Sodium Nitroprusside Alleviates Drought Stress in Lagenaria siceraria. PLANTS (BASEL, SWITZERLAND) 2024; 13:1972. [PMID: 39065499 PMCID: PMC11280828 DOI: 10.3390/plants13141972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024]
Abstract
Drought is one of the non-biological stresses that affect the growth and development of plants globally, especially Lagenaria siceraria plants. As a common nitric oxide (NO) donor, sodium nitroprusside plays a significant role in enhancing the resistance of plants to non-biological stresses. In this study, 'Yayao' (L. siceraria) was selected as the material through which to investigate the mitigating effects of different concentrations of sodium nitroprusside on L. siceraria plants under moderate drought stress. The results showed that a concentration of 0.25 mmol·L-1 sodium nitroprusside had the best mitigation effect on drought stress in L. siceraria plants. Under this condition, the plant height and leaf dry weight and fresh weight increased by 12.21%, 21.84%, and 40.48%. The photosynthetic parameters were significantly improved, and the fluorescence parameters Fo and Fm were reduced by 17.04% and 7.80%, respectively. The contents of soluble sugar and proline increased by 35.12% and 44.49%, respectively. The activities of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) increased by 51.52%, 164.11%, and 461.49%, respectively. The content of malondialdehyde (MDA) decreased by 34.53%, which alleviated the damage caused by reactive oxygen species. Additionally, sodium nitroprusside promoted the expression of genes related to antioxidant enzymes (SOD, CAT, and POD). Overall, this analysis indicates that an appropriate concentration of sodium nitroprusside can enhance the drought tolerance of L. siceraria plants through multiple aspects and alleviate the harm caused by drought stress.
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Affiliation(s)
| | | | | | - Hongmei Mu
- College of Agriculture Science and Engineering, Liaocheng University, Liaocheng 252000, China; (X.Z.); (S.Q.); (S.L.); (Y.J.)
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Jensen NB, Ottosen CO, Fomsgaard IS, Zhou R. Elevated CO 2 induce alterations in the hormonal regulation of stomata in drought stressed tomato seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108762. [PMID: 38788294 DOI: 10.1016/j.plaphy.2024.108762] [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: 06/06/2023] [Revised: 04/27/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
The atmospheric CO2 level is rising, and the consequent climate change is causing an increase in drought events. Furthermore, the CO2 level is known to induce changes in the physiological responses to stress in plants. Exogenous melatonin is suggested to play roles in the response of plants to abiotic stresses, including drought. We investigated physiological drought stress responses at ambient and elevated CO2 levels (aCO2 and eCO2) of melatonin-treated and untreated tomato plants, aiming to link effects of water use efficiency of photosynthesis at (WUELeaf) and stomatal conductance (gs) with the hormonal regulation of stomata. Tomatoes grown at eCO2 had reduced water use of both irrigated and drought stressed plants during the progression of drought at the whole plant level. This was also reflected in a CO2-affected increase in WUELeaf at eCO2 across irrigated and drought-stressed plants. These CO2-induced effects were mediated through stomatal closing and reductions in stomatal pore area rather than stomatal density or size. Abscisic acid (ABA) and its conjugated form, ABA glucose ester (ABA-GE), increased at drought stress in aCO2, while only ABA-GE increased at eCO2. Contrary, salicylic acid (SA) increased to a greater magnitude at drought stress in eCO2 than aCO2. Melatonin treatment showed no effects on the stomatal regulation. Our findings imply that eCO2 changes in the balance of hormonal effectors in stomatal regulation during drought, shifting from it ABA to SA regulation, suggesting to consider stomatal reactions at eCO2 in a perspective of a hormonal interplay rather than only ABA.
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Affiliation(s)
- Nikolaj Bjerring Jensen
- Department of Food Science, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark.
| | - Carl-Otto Ottosen
- Department of Food Science, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark.
| | | | - Rong Zhou
- Department of Food Science, Aarhus University, Agro Food Park 48, DK-8200, Aarhus N, Denmark; College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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3
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Samanta S, Seth CS, Roychoudhury A. The molecular paradigm of reactive oxygen species (ROS) and reactive nitrogen species (RNS) with different phytohormone signaling pathways during drought stress in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108259. [PMID: 38154293 DOI: 10.1016/j.plaphy.2023.108259] [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: 08/27/2023] [Revised: 11/13/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023]
Abstract
Drought is undoubtedly a major environmental constraint that negatively affects agricultural yield and productivity throughout the globe. Plants are extremely vulnerable to drought which imposes several physiological, biochemical and molecular perturbations. Increased generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in different plant organs is one of the inevitable consequences of drought. ROS and RNS are toxic byproducts of metabolic reactions and poise oxidative stress and nitrosative stress that are detrimental for plants. In spite of toxic effects, these potentially active radicals also play a beneficial role in mediating several signal transduction events that lead to plant acclimation and enhanced survival under harsh environmental conditions. The precise understanding of ROS and RNS signaling and their molecular paradigm with different phytohormones, such as auxin, gibberellin, cytokinin, abscisic acid, ethylene, brassinosteroids, strigolactones, jasmonic acid, salicylic acid and melatonin play a pivotal role for maintaining plant fitness and resilience to counteract drought toxicity. Therefore, the present review provides an overview of integrated systemic signaling between ROS, RNS and phytohormones during drought stress based on past and recent advancements and their influential role in conferring protection against drought-induced damages in different plant species. Indeed, it would not be presumptuous to hope that the detailed knowledge provided in this review will be helpful for designing drought-tolerant crop cultivars in the forthcoming times.
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Affiliation(s)
- Santanu Samanta
- Post Graduate Department of Biotechnology, St. Xavier's College (Autonomous), 30, Mother Teresa Sarani, Kolkata, 700016, West Bengal, India
| | | | - Aryadeep Roychoudhury
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, Maidan Garhi, New Delhi, 110068, India.
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Ilyas MZ, Park H, Jang SJ, Cho J, Sa KJ, Lee JK. Association Mapping for Evaluation of Population Structure, Genetic Diversity, and Physiochemical Traits in Drought-Stressed Maize Germplasm Using SSR Markers. PLANTS (BASEL, SWITZERLAND) 2023; 12:4092. [PMID: 38140419 PMCID: PMC10747078 DOI: 10.3390/plants12244092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
Globally, maize is one of the most consumed crops along with rice and wheat. However, maize is sensitive to different abiotic stress factors, such as drought, which have a significant impact on its production. The aims of this study were to investigate (1) genetic variation among 41 maize-inbred lines and the relationships among them and (2) significant marker-trait associations (SMTAs) between 7 selected physiochemical traits and 200 simple sequence repeat (SSR) markers to examine the genetics of these traits. A total of 1023 alleles were identified among the 41 maize-inbred lines using the 200 SSR loci, with a mean of 5.1 alleles per locus. The average major allele frequency, gene diversity, and polymorphism information content were 0.498, 0.627, and 0.579, respectively. The population structure analysis based on the 200 SSR loci divided the maize germplasm into two primary groups with an admixed group. Moreover, this study identified, respectively, 85 SMTAs and 31 SMTAs using a general linear model (Q GLM) and a mixed linear model (Q + K MLM) with statistically significant (p < 0.05 and <0.01) associations with the seven physiochemical traits (caffeic acid content, chlorogenic acid content, gallic acid content, ferulic acid content, 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity, leaf relative moisture content, total phenolic content). These SSR markers were highly correlated with one or more of the seven physiochemical traits. This study provides insights into the genetics of the 41 maize-inbred lines and their seven physiochemical traits and will be of assistance to breeders in the marker-assisted selection of maize for breeding programs.
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Affiliation(s)
- Muhammad Zahaib Ilyas
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; (M.Z.I.); (H.P.); (S.J.J.); (J.C.)
| | - Hyeon Park
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; (M.Z.I.); (H.P.); (S.J.J.); (J.C.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - So Jung Jang
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; (M.Z.I.); (H.P.); (S.J.J.); (J.C.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jungeun Cho
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; (M.Z.I.); (H.P.); (S.J.J.); (J.C.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyu Jin Sa
- Department of Crop Science, College of Ecology & Environmental Sciences, Kyungpook National University, Sangju 37224, Republic of Korea;
| | - Ju Kyong Lee
- Department of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea; (M.Z.I.); (H.P.); (S.J.J.); (J.C.)
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
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Zou X, Zhang J, Cheng T, Guo Y, Zhang L, Han X, Liu C, Wan Y, Ye X, Cao X, Song C, Zhao G, Xiang D. New strategies to address world food security and elimination of malnutrition: future role of coarse cereals in human health. FRONTIERS IN PLANT SCIENCE 2023; 14:1301445. [PMID: 38107010 PMCID: PMC10722300 DOI: 10.3389/fpls.2023.1301445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/20/2023] [Indexed: 12/19/2023]
Abstract
As we face increasing challenges of world food security and malnutrition, coarse cereals are coming into favor as an important supplement to human staple foods due to their high nutritional value. In addition, their functional components, such as flavonoids and polyphenols, make them an important food source for healthy diets. However, we lack a systematic understanding of the importance of coarse cereals for world food security and nutritional goals. This review summarizes the worldwide cultivation and distribution of coarse cereals, indicating that the global area for coarse cereal cultivation is steadily increasing. This paper also focuses on the special adaptive mechanisms of coarse cereals to drought and discusses the strategies to improve coarse cereal crop yields from the perspective of agricultural production systems. The future possibilities, challenges, and opportunities for coarse cereal production are summarized in the face of food security challenges, and new ideas for world coarse cereal production are suggested.
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Affiliation(s)
- Xin Zou
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Jieyu Zhang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Ting Cheng
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yangyang Guo
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Li Zhang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Xiao Han
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Changying Liu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yan Wan
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Xueling Ye
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Xiaoning Cao
- Center for Agricultural Genetic Resources Research, Shanxi Agricultural University, Taiyuan, China
| | - Chao Song
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Gang Zhao
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Dabing Xiang
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, College of Food and Biological Engineering, Chengdu University, Chengdu, China
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El-Esawi MA, Alayafi AA. Enhancing the Biological Control of Mite Species Infesting Olive Trees through Application of Predatory Mite Agistemus exsertus Gonzalez (Acari: Stigmaeidae) and Eco-Friendly Natural Compounds. PHYSIOLOGIA PLANTARUM 2023; 175:e14097. [PMID: 38148192 DOI: 10.1111/ppl.14097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 07/27/2023] [Accepted: 11/13/2023] [Indexed: 12/28/2023]
Abstract
Olive (Olea europaea L.) is a subtropical tree cultivated in arid, dry and temperate regions. Olive orchards in Al-Jouf of Saudi Arabia are the largest worldwide and currently face harmful pest infestation. The present study aimed at evaluating the efficiency of the predatory mite Agistemus exsertus Gonzalez (Acari: Stigmaeidae) and the exogenously applied melatonin (MT), glycine betaine (GB) and 5-aminolevulinic acid (ALA) as eco-friendly approaches for enhancing the biological control of four mite species (Tegolophus hassani, Oxycenus niloticus, Aceria olivi and Tetranychus urticae) infesting olive trees in Al-Jouf under laboratory and field conditions. Field experiment was conducted on 6-year-old Manzanillo olive trees grown in a private orchard farm in Al-Jouf during two seasons, 2020 and 2021. Results revealed that A. exsertus developed successfully from egg to adult. The females of T. hassani, O. niloticus, A. olivi, and T. urticae required 7.36, 8.89, 9.98 and 8.38 days, respectively, to develop from egg to adult at 28°C and 65 ± 5% relative humidity. O. niloticus was the most preferred prey of A. exsertus. The net reproductive rate (R0 ) was 42.1, 38.7, 34.6 and 36.8 females/female/generation, the intrinsic rate of increase (rm ) was 0.27, 0.26, 0.23 and 0.20 females/female/day, and the mean generation time (T) was 16.2, 17.1, 18.6 and 17.2 days when a predator consumed T. hassani, O. niloticus, A. olivi and T. urticae, respectively. The adult female consumed daily about 114 O. niloticus, 105 A. olivi, 95 T. hassani and 15.2 T. urticae individuals, respectively. A. exsertus proved to be an effective biocontrol agent against mites infesting olive trees. In addition, the exogenous application of 1 mM MT, 15 mM GB and 25 mg/L ALA, alone or in combination, caused significant mortality for the four mites. Application of these natural compounds, alone or in combination, also significantly enhanced the growth, relative water content, relative chlorophyll, content of flavonoid and nutrients, antioxidant enzymes activities, stress-related genes expression and fruit yield and quality of the infested olive trees compared to non-treated infested trees. This study is the first that demonstrates the efficiency of these eco-friendly approaches for controlling mites infesting olive trees, and could be used as a replacement for the harmful chemical acaricides.
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Affiliation(s)
- Mohamed A El-Esawi
- Botany Department, Faculty of Science, Tanta University, Tanta, Egypt
- Department of Biological Sciences, Faculty of Science, New Mansoura University, Egypt
| | - Aisha A Alayafi
- Biological Sciences Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
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Dong Y, Wang N, Wang S, Wang J, Peng W. A review: The nutrition components, active substances and flavonoid accumulation of Tartary buckwheat sprouts and innovative physical technology for seeds germinating. Front Nutr 2023; 10:1168361. [PMID: 37476405 PMCID: PMC10355155 DOI: 10.3389/fnut.2023.1168361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/15/2023] [Indexed: 07/22/2023] Open
Abstract
Compared with the common grain, Tartary buckwheat enjoys higher nutritional value. Some distinctive nutrition associated with physiological activity of Tartary buckwheat is valuable in medicine. In addition, it's a good feed crop. In the paper, the main components (starch, protein, amino acid, fatty acid and mineral) and polyphenol bioactive components in Tartary buckwheat and its sprouts were reviewed, and the accumulation of flavonoids in sprouts during germination, especially the methods, synthetic pathways and mechanisms of flavonoid accumulation was summarized. The research on bioactive components and health benefits of Tartary buckwheat also were reviewed. Besides, the applications of innovative physical technology including microwave, magnetic, electromagnetic, ultrasonic, and light were also mentioned and highlighted, which could promote the enrichment of some active substances during seeds germination and growth of Tartary buckwheat sprouts. It would give a good support and benefit for the research and processing of Tartary buckwheat and its sprouts in next day.
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Affiliation(s)
- Yulu Dong
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, China
| | - Nan Wang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, China
| | - Shunmin Wang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, China
| | - Junzhen Wang
- Academy of Agricultural Science Liang Shan, Liangshan, China
| | - Wenping Peng
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, China
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Jahan MS, Zhao CJ, Shi LB, Liang XR, Jabborova D, Nasar J, Zhou XB. Physiological mechanism of melatonin attenuating to osmotic stress tolerance in soybean seedlings. FRONTIERS IN PLANT SCIENCE 2023; 14:1193666. [PMID: 37575931 PMCID: PMC10413876 DOI: 10.3389/fpls.2023.1193666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 07/04/2023] [Indexed: 08/15/2023]
Abstract
Drought is one of the most significant abiotic stress threatening to crop production worldwide. Soybean is a major legume crop with immense economic significance, but its production is highly dependent on optimum rainfall or abundant irrigation. As the global climate changes, it is more important to find solutions to make plants more resilient to drought. The prime aimed of the study is to investigate the effect of melatonin on drought tolerance in soybean and its potential mechanisms. Soybean seedlings were treated with 20% polyethylene glycol 6000 (PEG 6000) and subjected to osmotic stress (14 days) with or without 100 μM melatonin treatment. Our results revealed that melatonin supplementation significantly mitigated PEG-induced growth retardation and increased water absorption ability. Foliar application of melatonin also increased gas exchange and the chlorophyll fluorescence attributes by the mitigation of the osmotic-induced reduction of the reaction activity of photosystems I and II, net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), electron transport activity, and photosynthetic efficiency. In addition, PEG-induced elevated production of reactive oxygen species (ROS) and malondialdehyde (MDA) content were significantly reversed by melatonin treatment. Equally important, melatonin boosted the antioxidant activities of soybean plants. Moreover, osmotic stress substantially increased abscisic acid (ABA) accumulation in roots and leaves, while melatonin-received plant leaves accumulated less ABA but roots content higher ABA. Similarly, melatonin significantly suppressed ABA biosynthesis and signaling gene expression in soybean exposed to drought stress. Furthermore, osmotic stress significantly suppressed plasmalemma (GmPIPs) and tonoplast aquaporin (GmTIPs) genes expression, and their transcript abundance was up-regulated by melatonin co-addition. Taken together, our results indicated that melatonin potentially improves drought tolerance of soybean through the regulation of ABA and aquaporin gene expression, increasing photosynthetic efficiency as well as enhancing water uptake efficiency.
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Affiliation(s)
- Mohammad Shah Jahan
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning, China
- Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Chang Jiang Zhao
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning, China
| | - Li Bo Shi
- MAP Division (Shandong) of Sinochem Agriculture Holdings, Jinan, China
| | - Xiu Ren Liang
- Guangxi Ecoengineering Vocational and Technical College, Liuzhou, China
| | - Dilfuza Jabborova
- Laboratory of Medicinal Plants Genetics and Biotechnology, Institute of Genetics and Plant Experimental Biology, Academy of Sciences of Uzbekistan, Tashkent, Uzbekistan
| | - Jamal Nasar
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning, China
| | - Xun Bo Zhou
- Guangxi Key Laboratory of Agro-environment and Agro-products Safety, Key Laboratory of Crop Cultivation and Physiology, College of Agriculture, Guangxi University, Guangxi, Nanning, China
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Silva ADN, Ramos MLG, Ribeiro Junior WQ, da Silva PC, Soares GF, Casari RADCN, de Sousa CAF, de Lima CA, Santana CC, Silva AMM, Vinson CC. Use of Thermography to Evaluate Alternative Crops for Off-Season in the Cerrado Region. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112081. [PMID: 37299061 DOI: 10.3390/plants12112081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/08/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
Future predictions due to climate change are of decreases in rainfall and longer drought periods. The search for new tolerant crops is an important strategy. The objective of this study was to evaluate the effect of water stress on the physiology and productivity of crops with potential for growing in the off-season period in the Cerrado, and evaluate correlations with the temperature of the canopy obtained by means of thermography. The experiment was conducted under field conditions, with experimental design in randomized blocks, in a split-plot scheme and four replications. The plots were: common bean (Phaseolus vulgaris); amaranth (Amaranthus cruentus); quinoa (Chenopodium quinoa); and buckwheat (Fagopyrum esculentum). The subplots were composed of four water regimes: maximum water regime (WR 535 mm), high-availability regime (WR 410 mm), off-season water regime (WR 304 mm) and severe water regime (WR 187 mm). Under WR 304 mm, the internal concentration of CO2 and photosynthesis were reduced by less than 10% in amaranth. Common bean and buckwheat reduced 85% in photosynthesis. The reduction in water availability increased the canopy temperature in the four crops and, in general, common bean was the most sensitive species, while quinoa had the lowest canopy temperatures. Furthermore, canopy temperature correlated negatively with grain yield, biomass yield and gas exchange across all plant species, thus thermal imaging of the canopy represents a promising tool for monitoring crop productivity for farmers, For the identification of crops with high water use management for research.
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Affiliation(s)
| | | | | | | | | | | | | | - Cristiane Andrea de Lima
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Brasília 70910970, DF, Brazil
| | | | | | - Chistina Cleo Vinson
- Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Brasília 70910970, DF, Brazil
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Jensen NB, Ottosen CO, Zhou R. Exogenous Melatonin Alters Stomatal Regulation in Tomato Seedlings Subjected to Combined Heat and Drought Stress through Mechanisms Distinct from ABA Signaling. PLANTS (BASEL, SWITZERLAND) 2023; 12:1156. [PMID: 36904016 PMCID: PMC10005520 DOI: 10.3390/plants12051156] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The understanding of stomatal regulation in climate stress is essential for ensuring resilient crops. The investigation of the stomatal regulation in combined heat and drought stress aimed to link effects of exogenous melatonin on stomatal conductance (gs) and its mechanistic interactions with ABA or ROS signaling. Melatonin-treated and non-treated tomato seedlings were subjected to moderate and severe levels of heat (38°C for one or three days) and drought stress (soil relative water content of 50% or 20%) applied individually and in combination. We measured gs, stomatal anatomy, ABA metabolites and enzymatic ROS scavengers. The stomata in combined stress responded predominantly to heat at soil relative water content (SRWC) = 50% and to drought stress at SRWC = 20%. Drought stress increased ABA levels at severe stress, whereas heat stress caused an accumulation of the conjugated form, ABA glucose ester, at both moderate and severe stress. The melatonin treatment affected gs and the activity of ROS scavenging enzymes but had no effect on ABA levels. The ABA metabolism and conjugation of ABA might play a role in stomatal opening toward high temperatures. We provide evidence that melatonin increases gs in combined heat and drought stress, but the effect is not mediated through ABA signaling.
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Affiliation(s)
- Nikolaj Bjerring Jensen
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200 Aarhus N, Denmark
| | - Carl-Otto Ottosen
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200 Aarhus N, Denmark
| | - Rong Zhou
- Department of Food Science, Plant, Food & Climate, Aarhus University, Agro Food Park 48, DK-8200 Aarhus N, Denmark
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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11
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Liu X, Du C, Yue C, Tan Y, Fan H. Exogenously applied melatonin alleviates the damage in cucumber plants caused by Aphis goosypii through altering the insect behavior and inducing host plant resistance. PEST MANAGEMENT SCIENCE 2023; 79:140-151. [PMID: 36107970 DOI: 10.1002/ps.7183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/05/2022] [Accepted: 09/15/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Aphis gossypii Glover is the main pest found in most cucumber-producing areas. Melatonin (MT) has been widely studied in protecting plants from environmental stresses and pathogens. However, little knowledge is available on the impact of MT on insect resistance. RESULTS The fecundity of aphids on MT-treated cucumber leaves was inhibited. Interestingly, MT-treated plants were more attractive to aphids, which would prevent the large-scale transmission of viruses caused by the random movement of aphids. Meanwhile, MT caused varying degrees of change in enzyme activities related to methylesterified HG degradation, antioxidants, defense systems and membrane lipid peroxidation. Furthermore, transcriptomic analysis showed that MT induced 2360 differentially expressed genes (DEGs) compared with the control before aphid infection. These DEGs mainly were enriched in hormone signal transduction, MAPK signaling pathway, and plant-pathogen interaction, revealing that MT can help plants acquire inducible resistance and enhance plant immunity. Subsequently, 2397 DEGs were identified after aphid infection. Further analysis showed that MT-treated plants possessed stronger JA signal, reactive oxygen species stability, and the ability of flavonoid synthesis under aphid infection, while mediating plant growth and sucrose metabolism. CONCLUSION In summary, MT as an environmentally friendly substance mitigated aphid damage to cucumbers by affecting the aphids themselves and enhancing plant resistance. This will facilitate exploring sustainable MT-based strategies for cucumber aphid control. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xingchen Liu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
| | - Changxia Du
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
| | - Cong Yue
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
| | - Yinqing Tan
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
| | - Huaifu Fan
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A & F University, Hangzhou, China
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Li G, Li Y, Zhu Y, Zheng W, Li M, Hu J, Fei Y, Zhu S. Exogenous application of melatonin to mitigate drought stress-induced oxidative damage in Phoebe sheareri seedlings. PeerJ 2023; 11:e15159. [PMID: 37090109 PMCID: PMC10117382 DOI: 10.7717/peerj.15159] [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: 12/09/2022] [Accepted: 03/13/2023] [Indexed: 04/25/2023] Open
Abstract
Background Drought stress is a major prevalent environmental factor impairing growth. Melatonin mitigates the impacts of drought stress on plants. However, melatonin's role in Phoebe sheareri (Hemsl.) Gamble (P. sheareri) is unknown. We aimed to reveal the protective effects of melatonin on P. sheareri seedlings under drought conditions. Methods Melatonin was sprayed under drought or normal water conditions. The parameters, including growth, physiological factors, and phytohormones of P. sheareri, were examined. Results Compared to the normal control group, drought stress inhibited the growth of seedlings and significantly reduced the content of carotenoids, SOD, POD, APX, PPO, CAT, GR, and soluble sugars, and increased the contents of MDA, O2 •-, proline, soluble proteins, ABA, and JA-Me in P. sheareri seedlings. However, melatonin treatment significantly reversed the adverse drought-induced responses and promoted the P. sheareri seedling's growth. Moreover, the heatmap and principal component analysis suggested a high similarity in the behavior patterns of the six measured antioxidant enzymes in P. sheareri seedlings. Conclusion Our study reported for the first time that melatonin has a protective role in P. sheareri seedlings under drought-stress conditions. This role is related to ROS scavenging, activation of antioxidant enzymes, and crosstalk of phytohormones. This study provided a theoretical basis for improving the ability of P. sheareri adapted to arid environments.
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Affiliation(s)
- Guifang Li
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Yanzhen Li
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Yuzi Zhu
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Wenjun Zheng
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Mengxi Li
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Jinlong Hu
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
| | - Yongjun Fei
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Sijia Zhu
- College of Tourism & Landscape Architecture, Guilin University of Technology/College of Plant and Ecological Engineering, Guilin, China
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Wang J, Gao X, Wang X, Song W, Wang Q, Wang X, Li S, Fu B. Exogenous melatonin ameliorates drought stress in Agropyron mongolicum by regulating flavonoid biosynthesis and carbohydrate metabolism. FRONTIERS IN PLANT SCIENCE 2022; 13:1051165. [PMID: 36600908 PMCID: PMC9806343 DOI: 10.3389/fpls.2022.1051165] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Drought is one of the most common abiotic stressors in plants. Melatonin (MT) is a high-efficiency and low-toxicity growth regulator that plays an important role in plant responses to drought stress. As a wild relative of wheat, Agropyron mongolicum has become an important species for the improvement of degraded grasslands and the replanting of sandy grasslands. However, the physiological and molecular mechanisms by which exogenous MT regulates drought stress in A. mongolicum remain unclear. To assess the effectiveness of MT intervention (100 mg·L-1), polyethylene glycol 6000 was used to simulate drought stress, and its ameliorating effects on drought stress in A. mongolicum seedlings were investigated through physiology, transcriptomics, and metabolomics. Physiological analysis indicated that MT treatment increased the relative water content and chlorophyll content and decreased the relative conductivity of A. mongolicum seedlings. Additionally, MT decreased malondialdehyde (MDA) and reactive oxygen species (ROS) accumulation by enhancing antioxidant enzyme activities. The transcriptome and metabolite profiling analysis of A. mongolicum seedlings treated with and without MT under drought stress identified the presence of 13,466 differentially expressed genes (DEGs) and 271 differentially expressed metabolites (DEMs). The integrated analysis of transcriptomics and metabolomics showed that DEGs and DEMs participated in diverse biological processes, such as flavonoid biosynthesis and carbohydrate metabolism. Moreover, MT may be involved in regulating the correlation of DEGs and DEMs in flavonoid biosynthesis and carbohydrate metabolism during drought stress. In summary, this study revealed the physiological and molecular regulatory mechanisms of exogenous MT in alleviating drought stress in A. mongolicum seedlings, and it provides a reference for the development and utilization of MT and the genetic improvement of drought tolerance in plants from arid habitats.
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Affiliation(s)
- Jing Wang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
| | - Xueqin Gao
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
| | - Xing Wang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
| | - Wenxue Song
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
| | - Qin Wang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
| | - Xucheng Wang
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
| | - Shuxia Li
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
| | - Bingzhe Fu
- School of Agriculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
- Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Yinchuan, Ningxia, China
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14
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Jalili S, Ehsanpour AA, Morteza Javadirad S. Melatonin improves salt tolerance of in vitro root culture of alfalfa (Medicago sativa L.). Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01275-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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15
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Qu C, Li W, Yang Q, Xia Y, Lu P, Hu M. Metabolic mechanism of nitrogen modified atmosphere storage on delaying quality deterioration of rice grains. Food Chem X 2022; 16:100519. [DOI: 10.1016/j.fochx.2022.100519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/04/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022] Open
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16
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Khalid M, Rehman HM, Ahmed N, Nawaz S, Saleem F, Ahmad S, Uzair M, Rana IA, Atif RM, Zaman QU, Lam HM. Using Exogenous Melatonin, Glutathione, Proline, and Glycine Betaine Treatments to Combat Abiotic Stresses in Crops. Int J Mol Sci 2022; 23:12913. [PMID: 36361700 PMCID: PMC9657122 DOI: 10.3390/ijms232112913] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 08/06/2023] Open
Abstract
Abiotic stresses, such as drought, salinity, heat, cold, and heavy metals, are associated with global climate change and hamper plant growth and development, affecting crop yields and quality. However, the negative effects of abiotic stresses can be mitigated through exogenous treatments using small biomolecules. For example, the foliar application of melatonin provides the following: it protects the photosynthetic apparatus; it increases the antioxidant defenses, osmoprotectant, and soluble sugar levels; it prevents tissue damage and reduces electrolyte leakage; it improves reactive oxygen species (ROS) scavenging; and it increases biomass, maintains the redox and ion homeostasis, and improves gaseous exchange. Glutathione spray upregulates the glyoxalase system, reduces methylglyoxal (MG) toxicity and oxidative stress, decreases hydrogen peroxide and malondialdehyde accumulation, improves the defense mechanisms, tissue repairs, and nitrogen fixation, and upregulates the phytochelatins. The exogenous application of proline enhances growth and other physiological characteristics, upregulates osmoprotection, protects the integrity of the plasma lemma, reduces lipid peroxidation, increases photosynthetic pigments, phenolic acids, flavonoids, and amino acids, and enhances stress tolerance, carbon fixation, and leaf nitrogen content. The foliar application of glycine betaine improves growth, upregulates osmoprotection and osmoregulation, increases relative water content, net photosynthetic rate, and catalase activity, decreases photorespiration, ion leakage, and lipid peroxidation, protects the oxygen-evolving complex, and prevents chlorosis. Chemical priming has various important advantages over transgenic technology as it is typically more affordable for farmers and safe for plants, people, and animals, while being considered environmentally acceptable. Chemical priming helps to improve the quality and quantity of the yield. This review summarizes and discusses how exogenous melatonin, glutathione, proline, and glycine betaine can help crops combat abiotic stresses.
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Affiliation(s)
- Memoona Khalid
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Hafiz Mamoon Rehman
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
- Center for Soybean Research of the Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Nisar Ahmed
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Sehar Nawaz
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Fozia Saleem
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Shakeel Ahmad
- Seed Center, Ministry of Environment, Water & Agriculture, Riyadh 14712, Saudi Arabia
| | - Muhammad Uzair
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, USA
| | - Iqrar Ahmad Rana
- Centre for Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture Faisalabad Pakistan, Punjab 38000, Pakistan
| | - Rana Muhammad Atif
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture Faisalabad Pakistan, Punjab 38000, Pakistan
| | - Qamar U. Zaman
- Center for Advanced Studies in Agriculture and Food Security, University of Agriculture Faisalabad Pakistan, Punjab 38000, Pakistan
| | - Hon-Ming Lam
- Center for Soybean Research of the Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
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17
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Melatonin Enhances Drought Tolerance in Rice Seedlings by Modulating Antioxidant Systems, Osmoregulation, and Corresponding Gene Expression. Int J Mol Sci 2022; 23:ijms232012075. [PMID: 36292930 PMCID: PMC9603070 DOI: 10.3390/ijms232012075] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/30/2022] [Accepted: 10/06/2022] [Indexed: 11/19/2022] Open
Abstract
Rice is the third largest food crop in the world, especially in Asia. Its production in various regions is affected to different degrees by drought stress. Melatonin (MT), a novel growth regulator, plays an essential role in enhancing stress resistance in crops. Nevertheless, the underlying mechanism by which melatonin helps mitigate drought damage in rice remains unclear. Therefore, in the present study, rice seedlings pretreated with melatonin (200 μM) were stressed with drought (water potential of −0.5 MPa). These rice seedlings were subsequently examined for their phenotypes and physiological and molecular properties, including metabolite contents, enzyme activities, and the corresponding gene expression levels. The findings demonstrated that drought stress induced an increase in malondialdehyde (MDA) levels, lipoxygenase (LOX) activity, and reactive oxygen species (ROS, e.g., O2− and H2O2) in rice seedlings. However, the melatonin application significantly reduced LOX activity and the MDA and ROS contents (O2− production rate and H2O2 content), with a decrease of 29.35%, 47.23%, and (45.54% and 49.33%), respectively. It activated the expression of ALM1, OsPOX1, OsCATC, and OsAPX2, which increased the activity of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX), respectively. Meanwhile, the melatonin pretreatment enhanced the proline, fructose, and sucrose content by inducing OsP5CS, OsSUS7, and OsSPS1 gene expression levels. Moreover, the melatonin pretreatment considerably up-regulated the expression levels of the melatonin synthesis genes TDC2 and ASMT1 under drought stress by 7-fold and 5-fold, approximately. These improvements were reflected by an increase in the relative water content (RWC) and the root-shoot ratio in the drought-stressed rice seedlings that received a melatonin application. Consequently, melatonin considerably reduced the adverse effects of drought stress on rice seedlings and improved rice’s ability to tolerate drought by primarily boosting endogenous antioxidant enzymes and osmoregulation abilities.
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18
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Zhu L, Gao H, Li L, Zhang Y, Zhao Y, Yu X. Promoting lutein production from the novel alga Acutodesmus sp. by melatonin induction. BIORESOURCE TECHNOLOGY 2022; 362:127818. [PMID: 36041678 DOI: 10.1016/j.biortech.2022.127818] [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: 07/01/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
In the current research, a novel microalgae strain was isolated from Yajiageng Red Rock Beach and identified as Acutodesmus sp. HLGY. To obtain high-efficiency production of lutein from algae, the feasibility of using melatonin (MT) to increase lutein yield of Acutodesmus sp. HLGY was evaluated. Under the 7.5 μM MT treatment, the lutein content and lutein productivity were 17.44 mg g-1 and 46.50 mg L-1 d-1, which were 1.53 times those of the control. Furthermore, exogenous MT increased the transcripts of key lutein synthesis- and antioxidant enzyme-related genes. Simultaneously, the carbohydrate, protein, and cellular reactive oxygen species (ROS) levels and lipid content were suppressed. More importantly, the ethylene and γ-aminobutyric acid contents were markedly increased by MT, which may be linked to the increase in lutein biosynthesis. This study proposes a valuable biotechnological approach for lutein production via a novel Acutodesmus sp. strain using MT induction and provides insights into the role of MT in promoting lutein biosynthesis.
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Affiliation(s)
- Liyan Zhu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Hui Gao
- Yunnan Alphy Biotech Co., Ltd, Chuxiong 675000, China
| | - Linpin Li
- Yunnan Alphy Biotech Co., Ltd, Chuxiong 675000, China
| | - Yong Zhang
- Yunnan Alphy Biotech Co., Ltd, Chuxiong 675000, China
| | - Yongteng Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xuya Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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19
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Arnao MB, Cano A, Hernández-Ruiz J. Phytomelatonin: an unexpected molecule with amazing performances in plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5779-5800. [PMID: 35029657 DOI: 10.1093/jxb/erac009] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/11/2022] [Indexed: 05/14/2023]
Abstract
Phytomelatonin, a multifunctional molecule that has been found to be present in all plants examined to date, has an important role in plants as a modulatory agent (a biostimulator) that improves plant tolerance to both biotic and abiotic stress. We present a review of phytomelatonin that considers its roles in plant metabolism and in particular its interactions with plant hormone network. In the primary metabolism of plants, melatonin improves the rate and efficiency of photosynthesis, as well related factors such as stomatal conductance, intercellular CO2, and Rubisco activity. It has also been shown to down-regulate some senescence transcription factors. Melatonin up-regulates many enzyme transcripts related to carbohydrates (including sucrose and starch), amino acids, and lipid metabolism, optimizing N, P, and S uptake. With respect to the secondary metabolism, clear increases in polyphenol, glucosinolate, terpenoid, and alkaloid contents have been described in numerous melatonin-treated plants. Generally, the most important genes of these secondary biosynthesis pathways have been found to be up-regulated by melatonin. The great regulatory capacity of melatonin is a result of its control of the redox and plant hormone networks. Melatonin acts as a plant master regulator, up-/down-regulating different plant hormone levels and signalling, and is a key player in redox homeostasis. It has the capacity to counteract diverse critical situations such as pathogen infections and abiotic stresses, and provide plants with varying degrees of tolerance. We propose possible future applications of melatonin for crop improvement and post-harvest product preservation.
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Affiliation(s)
- Marino B Arnao
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100-Murcia, Spain
| | - Antonio Cano
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100-Murcia, Spain
| | - Josefa Hernández-Ruiz
- Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, 30100-Murcia, Spain
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Zhang P, Hu Y, Zhou R, Zhang X, Hu H, Lang D. The antioxidant system response to drought-stressed Diospyros lotus treated with exogenous melatonin. PeerJ 2022; 10:e13936. [PMID: 36157056 PMCID: PMC9496507 DOI: 10.7717/peerj.13936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 08/02/2022] [Indexed: 01/19/2023] Open
Abstract
Drought is one of the major abiotic stresses adversely impacting the growth of persimmon, which is a widely cultivated traditional fruit tree in North China. Melatonin is a bio-stimulator involved in mediating plant responses to drought. The role of exogenous melatonin application in the drought tolerance of Diospyros lotus was examined under drought stress with different doses of melatonin (0, 10, 50, and 100 µM). Exogenous melatonin application significantly mitigated the adverse effects of drought stress on chlorophyll fluorescence, lipid peroxidation, reactive oxygen species (ROS) accumulation and nitric oxide (NO) content. The 100-µM melatonin application produced the most beneficial impacts against drought stress. The melatonin-enhanced tolerance could be attributed to improved antioxidant enzymes, reduced drought-induced ROS accumulation, and lipid peroxidation. Melatonin application activated major antioxidant enzymes such as superoxide dismutase, catalase, peroxidase, glutathione reductase, and ascorbate peroxidase. Interestingly, NO concentration was significantly higher in 10 and 50 µM melatonin treatments and lower in 100 µM melatonin treatment compared to the control. Moreover, exogenous melatonin application affected the mRNA transcript levels of several genes involved in ROS metabolism, including DlRBOHA, DlSOD, DlCAT, and DlPOD. Hence, the responses of Diospyros lotus to drought varied with different doses of melatonin. Our results provide a concrete insight into the effects of melatonin with varying doses in alleviating drought as well as a platform for its potential application in the related fields.
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Affiliation(s)
- Peng Zhang
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China,Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Yi Hu
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China
| | - Ruijin Zhou
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China,Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Xiaona Zhang
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China,Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Huiling Hu
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China,Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
| | - Dongmei Lang
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China,Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang, China
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Yao X, Zhou M, Ruan J, Peng Y, Ma C, Wu W, Gao A, Weng W, Cheng J. Physiological and Biochemical Regulation Mechanism of Exogenous Hydrogen Peroxide in Alleviating NaCl Stress Toxicity in Tartary Buckwheat (Fagopyrum tataricum (L.) Gaertn). Int J Mol Sci 2022; 23:ijms231810698. [PMID: 36142630 PMCID: PMC9505081 DOI: 10.3390/ijms231810698] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
We aimed to elucidate the physiological and biochemical mechanism by which exogenous hydrogen peroxide (H2O2) alleviates salt stress toxicity in Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn). Tartary buckwheat “Chuanqiao-2” under 150 mmol·L−1 salt (NaCl) stress was treated with 5 or 10 mmol·L−1 H2O2, and seedling growth, physiology and biochemistry, and related gene expression were studied. Treatment with 5 mmol·L−1 H2O2 significantly increased plant height (PH), fresh and dry weights of shoots (SFWs/SDWs) and roots (RFWs/RDWs), leaf length (LL) and area (LA), and relative water content (LRWC); increased chlorophyll a (Chl a) and b (Chl b) contents; improved fluorescence parameters; enhanced antioxidant enzyme activity and content; and reduced malondialdehyde (MDA) content. Expressions of all stress-related and enzyme-related genes were up-regulated. The F3′H gene (flavonoid synthesis pathway) exhibited similar up-regulation under 10 mmol·L−1 H2O2 treatment. Correlation and principal component analyses showed that 5 mmol·L−1 H2O2 could significantly alleviate the toxic effect of salt stress on Tartary buckwheat. Our results show that exogenous 5 mmol·L−1 H2O2 can alleviate the inhibitory or toxic effects of 150 mmol·L−1 NaCl stress on Tartary buckwheat by promoting growth, enhancing photosynthesis, improving enzymatic reactions, reducing membrane lipid peroxidation, and inducing the expression of related genes.
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Affiliation(s)
- Xin Yao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Meiliang Zhou
- Institute of Crop Science, Chinese Academy of Agriculture Science, Beijing 100081, China
| | - Jingjun Ruan
- College of Agronomy, Guizhou University, Guiyang 550025, China
- Correspondence: (J.R.); (J.C.)
| | - Yan Peng
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Chao Ma
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Weijiao Wu
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Anjing Gao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Wenfeng Weng
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Jianping Cheng
- College of Agronomy, Guizhou University, Guiyang 550025, China
- Correspondence: (J.R.); (J.C.)
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Roy R, Sultana S, Begum N, Fornara D, Barmon M, Zhang R, Sarker T, Rabbany MG. Exogenous melatonin reduces water deficit-induced oxidative stress and improves growth performance of Althaea rosea grown on coal mine spoils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61550-61560. [PMID: 34089453 DOI: 10.1007/s11356-021-14671-2] [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: 04/08/2021] [Accepted: 05/27/2021] [Indexed: 05/27/2023]
Abstract
Coal mining activities are responsible for significant land degradation and often long-term irreversible effects on ecosystem functioning. To better understand how coal mined sites could be re-vegetated and ecosystem functioning restored, we address the role of the signalling hormone melatonin, which controls plant growth and development under adverse environmental conditions. We assessed the effects of exogenous melatonin on the plant species Althaea rosea by measuring morphological growth attributes, photosynthetic efficiency, reactive oxygen species (ROS)-induced oxidative damage and antioxidant defence developed by the seedlings when grown on coal-mined spoils under various water regimes. Water deficit and negative effects of coal mine spoils significantly decreased morphological growth attributes (i.e. plant height, root length and dry biomass), gas-exchange traits (i.e. net photosynthesis rate, inter intercellular concentration of CO2, transpiration rate, stomatal conductance and water use efficiency) and photosynthetic pigments (chlorophyll and carotenoid contents) by increasing the ROS-induce oxidative damage and decreasing antioxidant enzyme activities of A. rosea seedlings. However, melatonin applications increased photosynthetic performance and antioxidant enzyme activities and decreased hydrogen peroxide and malondialdehyde contents and ultimately improved growth performance of A. rosea in coal-mined spoils. Overall, our findings show how the application of optimum water (63.0 %field capacity equivalent to 1.67 mm day-1) and melatonin (153.0 μM dose) significantly improves the re-vegetation of coal-mined spoils with A. rosea. Our study provides new insight into melatonin-mediated water stress tolerance in A. rosea grown on coal-mined spoils, and this strategy could be implemented in re-vegetation programmes of coal mine-degraded areas under arid and semiarid conditions of the north-western part of China and perhaps across other arid areas worldwide.
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Affiliation(s)
- Rana Roy
- Department of Agroforestry & Environmental Science, Sylhet Agricultural University, Sylhet, 3100, Bangladesh.
| | - Shirin Sultana
- Open School, Bangladesh Open University, Gazipur, Dhaka, 1705, Bangladesh
| | - Naheeda Begum
- Soybean Research Institution, National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
| | - Dario Fornara
- Agri-Food & Biosciences Institute, Newforge Lane, Belfast, BT9 5PX, UK
| | - Milon Barmon
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Ruiqi Zhang
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Tanwne Sarker
- School of Economics and Finance, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Md Ghulam Rabbany
- College of Economics and Management, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Department of Agribusiness and Marketing, Faculty of Agribusiness Management, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka, 1207, Bangladesh
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Li Y, Sun Y, Cui H, Li M, Yang G, Wang Z, Zhang K. Carex rigescens caffeic acid O-methyltransferase gene CrCOMT confer melatonin-mediated drought tolerance in transgenic tobacco. FRONTIERS IN PLANT SCIENCE 2022; 13:971431. [PMID: 36035693 PMCID: PMC9399801 DOI: 10.3389/fpls.2022.971431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/22/2022] [Indexed: 05/27/2023]
Abstract
Melatonin is an important, multifunctional protective agent against a variety of abiotic and biotic stressors in plants. Caffeic acid O-methyltransferase (COMT) catalyzes the last step of melatonin synthesis in plants and reportedly participates in the regulation of stress response and tolerance. However, few studies have reported its function in melatonin-mediated drought resistance. In this study, CrCOMT was identified and was strongly induced by drought stress in Carex rigescens. CrCOMT overexpression in transgenic tobacco increased tolerance to drought stress with high levels of seed germination, relative water content, and survival rates. CrCOMT overexpression in tobacco improved membrane stability, and plants exhibited lower relative electrolytic leakage and malondialdehyde content, as well as higher photochemical efficiency than the wildtype (WT) under drought stress. The transgenic plants also had higher levels of proline accumulation and antioxidant enzyme activity, which decreased oxidative stress damage due to reactive oxygen species (ROS) hyperaccumulation under drought stress. The transcription of drought stress response and ROS scavenging genes was significantly higher in the CrCOMT overexpression plants than in the WT plants. In addition, CrCOMT transgenic tobacco plants exhibited higher melatonin content under drought stress conditions. Exogenous melatonin was applied to C. rigescens under drought stress to confirm the function of melatonin in mediating drought tolerance; the relative water content and proline content were higher, and the relative electrolytic leakage was lower in melatonin-treated C. rigescens than in the untreated plants. In summary, these results show that CrCOMT plays a positive role in plant drought stress tolerance by regulating endogenous melatonin content.
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Affiliation(s)
- Yan Li
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Yan Sun
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Huiting Cui
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Mingna Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Guofeng Yang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Zengyu Wang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Kun Zhang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
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Yan Q, Li X, Xiao X, Chen J, Liu J, Lin C, Guan R, Wang D. Arbuscular mycorrhizal fungi improve the growth and drought tolerance of Cinnamomum migao by enhancing physio-biochemical responses. Ecol Evol 2022; 12:e9091. [PMID: 35845374 PMCID: PMC9273509 DOI: 10.1002/ece3.9091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 05/30/2022] [Accepted: 06/16/2022] [Indexed: 11/09/2022] Open
Abstract
Drought is the main limiting factor for plant growth in karst areas with a fragile ecological environment. Cinnamomum migao H.W. Li is an endemic medicinal woody plant present in the karst areas of southwestern China, and it is endangered due to poor drought tolerance. Arbuscular mycorrhizal fungi (AMF) are known to enhance the drought tolerance of plants. However, few studies have examined the contribution of AMF in improving the drought tolerance of C. migao seedlings. Therefore, we conducted a series of experiments to determine whether a single inoculation and coinoculation of AMF (Claroideoglomus lamellosum and Claroideoglomus etunicatum) enhanced the drought tolerance of C. migao. Furthermore, we compared the effects of single inoculation and coinoculation with different inoculum sizes (20, 40, 60, and 100 g; four replicates per treatment) on mycorrhizal colonization rate, plant growth, photosynthetic parameters, antioxidant enzyme activity, and malondialdehyde (MDA) and osmoregulatory substance contents. The results showed that compared with nonmycorrhizal plants, AMF colonization significantly improved plant growing status; net photosynthetic rate; superoxide dismutase, catalase, and peroxidase activities; and soluble sugar, soluble protein, and proline contents. Furthermore, AMF colonization increased relative water content and reduced MDA content in cells. These combined cumulative effects of AMF symbiosis ultimately enhanced the drought tolerance of seedlings and were closely related to the inoculum size. With an increase in inoculum size, the growth rate and drought tolerance of plants first increased and then decreased. The damage caused by drought stress could be reduced by inoculating 40-60 g of AMF, and the effect of coinoculation was significantly better than that of single inoculation at 60 g of AMF, while the effect was opposite at 40 g of AMF. Additionally, the interaction between AMF and inoculum sizes had a significant effect on drought tolerance. In conclusion, the inoculation of the AMF (Cl. lamellosum and Cl. etunicatum) improved photosynthesis, activated antioxidant enzymes, regulated cell osmotic state, and enhanced the drought tolerance of C. migao, enabling its growth in fragile ecological environments.
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Affiliation(s)
- Qiuxiao Yan
- Department of Ecology, College of Forestry Guizhou University Guiyang China.,The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang China.,State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Guiyang China
| | - Xiangying Li
- Institute of New Rural Development Guizhou University Guiyang China
| | - Xuefeng Xiao
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Jingzhong Chen
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Jiming Liu
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Changhu Lin
- Department of Labor Health and Environmental Hygiene, School of Public Health Guizhou Medical University Guiyang China
| | - Ruiting Guan
- Department of Ecology, College of Forestry Guizhou University Guiyang China
| | - Daoping Wang
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences Guiyang China.,State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Guiyang China
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25
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Iqbal R, Khan T. Application of exogenous melatonin in vitro and in planta: a review of its effects and mechanisms of action. Biotechnol Lett 2022; 44:933-950. [PMID: 35751787 DOI: 10.1007/s10529-022-03270-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 06/02/2022] [Indexed: 11/28/2022]
Abstract
Melatonin is a natural indolamine that regulates many physiological functions in plants. The most prominent role of melatonin in plants has been its ability to work as an anti-stressor agent. Exogenous melatonin can prevent cell death and promote cell proliferation through its antioxidant properties, enhancement of polyamine biosynthesis, and the ability to shift cell metabolism in case of stressors like sugar starvation. Melatonin scavenges reactive oxygen species and thus preventing damage to cell membranes and other organelles. Its application in different plant culture systems reveals its important physiological and biochemical roles during the growth and development of these cultures. It has been observed that the exogenous melatonin protects callus culture, reduces cold-induced apoptosis in cell suspension, and stimulates adventitious and lateral roots formation. This review presents the physiological and biochemical effects of exogenous melatonin on in vitro culture systems, including its impact on biomass accumulation, growth, and development of plants.
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Affiliation(s)
- Reema Iqbal
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, 18800, Pakistan.,Institute of Biotechnology and Genetic Engineering, University of Agriculture, Peshawar, Pakistan
| | - Tariq Khan
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, 18800, Pakistan.
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26
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Yu Y, Ni Y, Qiao T, Ji X, Xu J, Li B, Sun Q. Overexpression of VvASMT1 from grapevine enhanced salt and osmotic stress tolerance in Nicotiana benthamiana. PLoS One 2022; 17:e0269028. [PMID: 35709203 PMCID: PMC9202941 DOI: 10.1371/journal.pone.0269028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 05/12/2022] [Indexed: 11/18/2022] Open
Abstract
Salt and drought stresses are major environmental conditions that severely limit grape growth and productivity, while exogenous melatonin can alleviate the drought and salt damage to grapevines. N-acetylserotonin methyltransferase (ASMT) is the key enzyme in melatonin synthesis, which plays a critical role in regulating stress responses. However, the roles of ASMTs from grapevine under drought and salt stresses responses remain largely unclear. In this study, the VvASMT1 gene was isolated from grapevine, and its physiological functions in salt and mimic drought stress tolerance were investigated. Expression pattern analysis revealed that VvASMT1 was significantly induced by different salt and osmotic stresses. Ectopic expression of VvASMT1 in Nicotiana benthamiana significantly enhanced melatonin production in transgenic plants. Compared with wild-type plants, the transgenic lines exhibited a higher germination ratio, longer root length, lower degree of leaf wilting and relative water content (RWC) under salt and osmotic stresses. In addition, under salt and osmotic stresses, overexpression of VvASMT1 improved proline and malondialdehyde (MDA) contents, increased the activity of antioxidant enzymes and decreased the accumulation of reactive oxygen species (ROS). Taken together, our results demonstrate the explicit role of VvASMT1 in salt and osmotic stress responses, which provides a theoretical foundation for the genetic engineering of grapevine.
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Affiliation(s)
- Yanyan Yu
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
| | - Yong Ni
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
| | - Tian Qiao
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
| | - Xiaomin Ji
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
- Department of Biological Engineering, Shandong Medicine Technician College, Taian, Shandong, People’s Republic of China
| | - Jinghao Xu
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
| | - Bo Li
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Taian, Shandong, People’s Republic of China
| | - Qinghua Sun
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Shandong, Taian, People’s Republic of China
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27
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El-Yazied AA, Ibrahim MFM, Ibrahim MAR, Nasef IN, Al-Qahtani SM, Al-Harbi NA, Alzuaibr FM, Alaklabi A, Dessoky ES, Alabdallah NM, Omar MMA, Ibrahim MTS, Metwally AA, Hassan KM, Shehata SA. Melatonin Mitigates Drought Induced Oxidative Stress in Potato Plants through Modulation of Osmolytes, Sugar Metabolism, ABA Homeostasis and Antioxidant Enzymes. PLANTS (BASEL, SWITZERLAND) 2022; 11:1151. [PMID: 35567152 PMCID: PMC9104148 DOI: 10.3390/plants11091151] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 05/05/2023]
Abstract
The effect of melatonin (MT) on potato plants under drought stress is still unclear in the available literature. Here, we studied the effect of MT as a foliar application at 0, 0.05, 0.1, and 0.2 mM on potato plants grown under well-watered and drought stressed conditions during the most critical period of early tuberization stage. The results indicated that under drought stress conditions, exogenous MT significantly (p ≤ 0.05) improved shoot fresh weight, shoot dry weight, chlorophyll (Chl; a, b and a + b), leaf relative water content (RWC), free amino acids (FAA), non-reducing sugars, total soluble sugars, cell membrane stability index, superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (G-POX), and ascorbate peroxidase (APX) compared to the untreated plants. Meanwhile, carotenoids, proline, methylglyoxal (MG), H2O2, lipid peroxidation (malondialdehyde; MDA) and abscisic acid (ABA) were significantly decreased compared to the untreated plants. These responses may reveal the protective role of MT against drought induced carbonyl/oxidative stress and enhancing the antioxidative defense systems. Furthermore, tuber yield was differentially responded to MT treatments under well-watered and drought stressed conditions. Since, applied-MT led to an obvious decrease in tuber yield under well-watered conditions. In contrast, under drought conditions, tuber yield was substantially increased by MT-treatments up to 0.1 mM. These results may imply that under water deficiency, MT can regulate the tuberization process in potato plants by hindering ABA transport from the root to shoot system, on the one hand, and by increasing the non-reducing sugars on the other hand.
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Affiliation(s)
- Ahmed Abou El-Yazied
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Mohamed F. M. Ibrahim
- Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt;
| | - Mervat A. R. Ibrahim
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Ibrahim N. Nasef
- Department of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt;
| | - Salem Mesfir Al-Qahtani
- Biology Department, University College of Tayma, Tabuk University, P.O. Box 741, Tabuk 47512, Saudi Arabia; (S.M.A.-Q.); (N.A.A.-H.)
| | - Nadi Awad Al-Harbi
- Biology Department, University College of Tayma, Tabuk University, P.O. Box 741, Tabuk 47512, Saudi Arabia; (S.M.A.-Q.); (N.A.A.-H.)
| | - Fahad Mohammed Alzuaibr
- Department of Biology, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi Arabia;
| | - Abdullah Alaklabi
- Department of Biology, Faculty of Science, University of Bisha, P.O. Box 551, Bisha 61922, Saudi Arabia;
| | - Eldessoky S. Dessoky
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Nadiyah M. Alabdallah
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Mohamed M. A. Omar
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Mariam T. S. Ibrahim
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Amr A. Metwally
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Karim. M. Hassan
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Said A. Shehata
- Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt;
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Colak N, Kurt-Celebi A, Gruz J, Strnad M, Hayirlioglu-Ayaz S, Choung MG, Esatbeyoglu T, Ayaz FA. The Phenolics and Antioxidant Properties of Black and Purple versus White Eggplant Cultivars. Molecules 2022; 27:molecules27082410. [PMID: 35458607 PMCID: PMC9030419 DOI: 10.3390/molecules27082410] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
The total phenolic content, anthocyanins, phenolic acids, antioxidant capacity and α-amylase inhibitory activity of black (Aydin Siyahi), purple (Kadife Kemer) and white (Trabzon Kadife) eggplants grown in Turkey were subjected to a comparative investigation. The black cultivar exhibited the highest total phenolic (17,193 and 6552 mg gallic acid equivalent/kg fw), flavonoid (3019 and 1160 quercetin equivalent/kg fw) and anthocyanin (1686 and 6167 g delphinidin-3-O-glucoside equivalent/kg fw) contents in crude extracts of the peel and pulp. The majority of the caffeic acid was identified in the ester (2830 mg/kg fw) and ester-bound (2594 mg/kg fw) forms in the peel of ‘Kadife Kemer’ and in the glycoside form (611.9 mg/kg fw) in ‘Aydin Siyahi’, as well as in the pulp of these two eggplants. ‘Kadife Kemer’ (purple eggplant) contained the majority of the chlorogenic acid in free form (27.55 mg/kg fw), compared to ‘Aydin Siyahi’ in the ester (7.82 mg/kg fw), glycoside (294.1 mg/kg dw) and ester-bound (2.41 mg/kg fw) forms. The eggplant cultivars (peel and pulp, mg/kg fw) exhibited a relatively high delphinidin-3-O-rutinoside concentration in the peel of ‘Aydin Siyahi’ (avg. 1162), followed by ‘Kadife Kemer’ (avg. 336.6), and ‘Trabzon Kadife’ (avg. 215.1). The crude phenolic extracts of the eggplants exhibited the highest antioxidant capacity values (peel and pulp, µmoL Trolox equivalent/kg fw) of 2,2-diphenyl-1-picrylhydrazyl (DPPH, 8156 and 2335) and oxygen radical absorbance capacity (ORAC, 37,887 and 17,648). The overall results indicate that black and purple eggplants are the cultivars with greater potential benefits in terms of their phenolics and antioxidant values than the white eggplant.
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Affiliation(s)
- Nesrin Colak
- Department of Biology, Faculty of Science, Karadeniz Technical University, Trabzon 61080, Turkey; (N.C.); (A.K.-C.); (S.H.-A.)
| | - Aynur Kurt-Celebi
- Department of Biology, Faculty of Science, Karadeniz Technical University, Trabzon 61080, Turkey; (N.C.); (A.K.-C.); (S.H.-A.)
| | - Jiri Gruz
- Department of Experimental Biology, Palacky University Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic;
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Faculty of Science, Palacky University & Institute of Experimental Botany AS CR, Slechtitelu 27, 783 71 Olomouc, Czech Republic;
| | - Sema Hayirlioglu-Ayaz
- Department of Biology, Faculty of Science, Karadeniz Technical University, Trabzon 61080, Turkey; (N.C.); (A.K.-C.); (S.H.-A.)
| | - Myoung-Gun Choung
- Department of Herbal Medicine Resource, Dogye Campus, Kangwon National University, Hwangjori 3, Dogye-up, Samcheok 25949, Korea;
| | - Tuba Esatbeyoglu
- Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz University Hannover, Am Kleinen Felde 30, 30167 Hannover, Germany
- Correspondence: (T.E.); (F.A.A.); Tel.: +49-511-762-5589 (T.E.); +90-462-377-3712 (F.A.A.)
| | - Faik Ahmet Ayaz
- Department of Biology, Faculty of Science, Karadeniz Technical University, Trabzon 61080, Turkey; (N.C.); (A.K.-C.); (S.H.-A.)
- Correspondence: (T.E.); (F.A.A.); Tel.: +49-511-762-5589 (T.E.); +90-462-377-3712 (F.A.A.)
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Yang K, Cao F, Xue Y, Tao L, Zhu Y. Three Classes of Antioxidant Defense Systems and the Development of Postmenopausal Osteoporosis. Front Physiol 2022; 13:840293. [PMID: 35309045 PMCID: PMC8927967 DOI: 10.3389/fphys.2022.840293] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/25/2022] [Indexed: 01/04/2023] Open
Abstract
Osteoporosis is a common bone imbalance disease that threatens the health of postmenopausal women. Estrogen deficiency accelerates the aging of women. Oxidative stress damage is regarded as the main pathogenesis of postmenopausal osteoporosis. The accumulation of reactive oxygen species in the bone microenvironment plays a role in osteoblast and osteoclast apoptosis. Improving the oxidative state is essential for the prevention and treatment of postmenopausal osteoporosis. There are three classes of antioxidant defense systems in the body to eliminate free radicals and peroxides including antioxidant substances, antioxidant enzymes, and repair enzymes. In our review, we demonstrated the mechanism of antioxidants and their effect on bone metabolism in detail. We concluded that glutathione/oxidized glutathione (GSH/GSSG) conversion involved the PI3K/Akt-Nrf2/HO-1 signaling pathway and that the antioxidant enzyme-mediated mitochondrial apoptosis pathway of osteoblasts was necessary for the development of postmenopausal osteoporosis. Since the current therapeutic effects of targeting bone cells are not significant, improving the systemic peroxidation state and then regulating bone homeostasis will be a new method for the treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Keda Yang
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Fangming Cao
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Yuchuan Xue
- The First Department of Clinical Medicine, China Medical University, Shenyang, China
| | - Lin Tao
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
- *Correspondence: Lin Tao,
| | - Yue Zhu
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
- Yue Zhu,
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30
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Ahmad S, Wang GY, Muhammad I, Zeeshan M, Zhou XB. Melatonin and KNO 3 Application Improves Growth, Physiological and Biochemical Characteristics of Maize Seedlings under Waterlogging Stress Conditions. BIOLOGY 2022; 11:biology11010099. [PMID: 35053096 PMCID: PMC8773118 DOI: 10.3390/biology11010099] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/07/2023]
Abstract
Simple Summary Waterlogging is one of the serious abiotic stresses that retards plant growth and reduces crop productivity. Therefore, exploring effective ways for alleviating the impacts of waterlogging stress has important theoretical and practical applications. Melatonin is a pleiotropic molecule that influences many diverse actions to enhance plant growth. Therefore, investigating efficient waterlogging mitigation measures has both theoretical and practical significance. The objectives of the present research were to examine the efficiency of melatonin and KNO3 seed soaking and foliar application on alleviating the waterlogging inhibited growth performance of maize seedlings. The results showed that melatonin and KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions. Overall, the application of 100 µM melatonin with 0.50 g KNO3 via seed soaking and foliar spray can be used as a potential mitigating strategy for improving the growth of maize seedlings and alleviating the ill effects of waterlogging stress. Abstract Waterlogging is one of the serious abiotic stresses that inhibits crop growth and reduces productivity. Therefore, investigating efficient waterlogging mitigation measures has both theoretical and practical significance. The objectives of the present research were to examine the efficiency of melatonin and KNO3 seed soaking and foliar application on alleviating the waterlogging inhibited growth performance of maize seedlings. In this study, 100 µM melatonin and different levels (0.25, 0.50 and 0.75 g) of potassium nitrate (KNO3) were used in seed soaking and foliar applications. For foliar application, treatments were applied at the 7th leaf stage one week after the imposition of waterlogging stress. The results showed that melatonin with KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions. However, the application of melatonin with KNO3 treatments increased plant growth characteristics, chlorophyll content, and the net photosynthetic rate at a variable rate under waterlogging stress. Furthermore, melatonin with KNO3 treatments significantly reduced the accumulation of hydrogen peroxide (H2O2) and malondialdehyde (MDA), and it decreased the activity of pyruvate decarboxylase and alcohol dehydrogenase, while increasing enzymatic activities and soluble protein content of maize seedlings under waterlogging stress conditions. Overall, our results indicated that seed soaking with 100 µM melatonin and 0.50 g KNO3 was the most effective treatment that significantly improved the plant growth characteristics, chlorophyll content, photosynthetic rate, and enzymatic activity of maize seedling under waterlogging conditions.
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Melatonin Promotes SGT1-Involved Signals to Ameliorate Drought Stress Adaption in Rice. Int J Mol Sci 2022; 23:ijms23020599. [PMID: 35054782 PMCID: PMC8775989 DOI: 10.3390/ijms23020599] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 02/06/2023] Open
Abstract
Drought has become one of the environmental threats to agriculture and food security. Applications of melatonin (MT) serve as an effective way to alleviate drought stress, but the underlying mechanism remains poorly understood. Here, we found that foliar spray of 100-µM MT greatly mitigated the severe drought stress-induced damages in rice seedlings, including improved survival rates, enhanced antioxidant system, and adjusted osmotic balance. However, mutation of the suppressor of the G2 allele of skp1 (OsSGT1) and ABSCISIC ACID INSENSITIVE 5 (OsABI5) abolished the effects of MT. Furthermore, the upregulated expression of OsABI5 was detected in wild type (WT) under drought stress, irrespective of MT treatment, whereas OsABI5 was significantly downregulated in sgt1 and sgt1abi5 mutants. In contrast, no change of the OsSGT1 expression level was detected in abi5. Moreover, mutation of OsSGT1 and OsABI5 significantly suppressed the expression of genes associated with the antioxidant system. These results suggested that the functions of OsSGT1 in the MT-mediated alleviation of drought stress were associated with the ABI5-mediated signals. Collectively, we demonstrated that OsSGT1 was involved in the drought response of rice and that melatonin promoted SGT1-involved signals to ameliorate drought stress adaption.
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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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Zahedi SM, Hosseini MS, Fahadi Hoveizeh N, Gholami R, Abdelrahman M, Tran LSP. Exogenous melatonin mitigates salinity-induced damage in olive seedlings by modulating ion homeostasis, antioxidant defense, and phytohormone balance. PHYSIOLOGIA PLANTARUM 2021; 173:1682-1694. [PMID: 34716914 DOI: 10.1111/ppl.13589] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 05/22/2023]
Abstract
Melatonin (MEL) is a ubiquitous molecule with pleiotropic roles in plant adaption to stress. In this study, we investigated the effects of foliar spray of 100 and 200 μM MEL on the biochemical and physiological traits linked with the growth performance of olive seedlings exposed to moderate (45 mM NaCl) and severe (90 mM NaCl) salinity. Both salt stress conditions caused a considerable reduction in leaf relative water content and the contents of photosynthetic pigments (carotenoids, chlorophylls a and b, and total chlorophylls), K+ and Ca+2 , while the contents of Na+ and the activities of antioxidant enzymes increased. In addition, salt-stressed olive seedlings showed high accumulations of hydrogen peroxide (H2 O2 ), malondialdehyde (MDA), and electrolyte leakage (EL), indicating that olive seedlings suffered from salinity-induced oxidative damage. In contrast, MEL application revived the growth of olive seedlings, including shoot height, root length and biomass under salt stress conditions. MEL protected the photosynthetic pigments and decreased the Na+ /K+ ratio under both moderate and severe salt stresses. Furthermore, MEL induced the accumulations of proline, total soluble sugars, glycine betaine, abscisic acid, and indole acetic acid in salt-stressed olive seedlings, which showed a positive correlation with improved leaf water status and biomass. MEL application also increased the activities of catalase, superoxide dismutase, ascorbate peroxidase, and peroxidase in salt-stressed seedlings, resulting in lower levels of H2 O2 , MDA, and EL in these plants. Taken together, MEL mitigates salinity through its roles in various biochemical and physiological processes, thereby representing a promising agent for application in crop protection.
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Affiliation(s)
- Seyed Morteza Zahedi
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | | | - Narjes Fahadi Hoveizeh
- Department of Horticultural Science, College of Agriculture, Shahid Chamran University of Ahwaz, Ahwaz, Iran
| | - Rahmatollah Gholami
- Crop and Horticultural Science Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran
| | - Mostafa Abdelrahman
- Department of Botany, Faculty of Science, Aswan University, Aswan, Egypt
- Faculty of Science, Galala University, Suze, Galala, Egypt
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
- Department of Plant and Soil Science, Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, Texas, USA
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Abstract
Abiotic stress adversely affects plant growth and metabolism and as such reduces plant productivity. Recognized as a major contributor in the production of reactive oxygen species (ROS), it hinders the growth of plants through induction of oxidative stress. Biostimulants such as melatonin have a multifunctional role, acting as a defense strategy in minimizing the effects of oxidative stress. Melatonin plays important role in plant processes ranging from seed germination to senescence, besides performing the function of a biostimulant in improving the plant’s productivity. In addition to its important role in the signaling cascade, melatonin acts as an antioxidant that helps in scavenging ROS, generated as part of different stresses among plants. The current study was undertaken to elaborate the synthesis and regulation of melatonin in plants, besides emphasizing its function under various abiotic stress namely, salt, temperature, herbicides, heavy metals, and drought. Additionally, a special consideration was put on the crosstalk of melatonin with phytohormones to overcome plant abiotic stress.
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Ren J, Yang X, Ma C, Wang Y, Zhao J. Melatonin enhances drought stress tolerance in maize through coordinated regulation of carbon and nitrogen assimilation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:958-969. [PMID: 34571389 DOI: 10.1016/j.plaphy.2021.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/15/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Melatonin is a pleiotropic regulatory molecule in plants and is involved in regulating plant tolerance to drought stress. Here, we conducted transcriptomic and physiological analyses to identify metabolic processes associated with the enhanced tolerance of the melatonin-treated maize (Zea mays L.) seedlings to water deficit. Maize seedlings were foliar sprayed with either 50 μM melatonin or water and exposed to drought stress for 12 d in growth chambers. Drought stress significantly suppressed seedling growth, and melatonin application partially alleviated this growth inhibition. RNA-Seq analysis revealed that genes whose expression was significantly altered by melatonin were mainly related to carbon (C) and nitrogen (N) metabolism. Analysis of transcriptomics, enzyme activity, and metabolite content data, melatonin-treated plants exhibited a higher level of relatively stable C and N metabolism than untreated plants; this phenotype of melatonin-treated plants was associated with their higher photosynthesis, sucrose biosynthesis, N assimilation, and protein biosynthesis capacities under drought stress. Overall, our results suggest that melatonin enhances drought stress tolerance in maize through coordinated regulation of C and N metabolism.
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Affiliation(s)
- Jianhong Ren
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030800, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, 712100, China; College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaoxiao Yang
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030800, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, 712100, China; College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chunying Ma
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030800, China
| | - Yuling Wang
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030800, China
| | - Juan Zhao
- College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030800, China.
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Pretreatment with H 2O 2 Alleviates the Negative Impacts of NaCl Stress on Seed Germination of Tartary Buckwheat ( Fagopyrum tataricum). PLANTS 2021; 10:plants10091784. [PMID: 34579317 PMCID: PMC8471425 DOI: 10.3390/plants10091784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 11/19/2022]
Abstract
Soil salinization is one of the main abiotic stress factors impacting the growth of crops and the agricultural industry today. Thus, we aimed to investigate the effects of H2O2 pretreatment on seed germination in Tartary buckwheat (Fagopyrum tataricum) seeds under salt stress and to evaluate this species’ salt tolerance. Through the preliminary experiment, this study used 50 mmol L−1 NaCl solution to induce seed stress. After soaking for 12 h in different H2O2 concentrations, seeds were laid in Petri dishes with 50 mmol L−1 NaCl for seven days and the germination parameters and physiological indicators were measured to screen the optimal H2O2 pretreatment concentration and the salt tolerance index. Our results indicated that pretreatment with 5–10 mmol L−1 H2O2 was most effective in alleviating NaCl’s impacts on the seeds’ germination parameters. Furthermore, the growth and material accumulation of seedlings was promoted; catalase, superoxide dismutase activity, and proline content were enhanced; and malondialdehyde content was reduced. Principal component analysis and stepwise regression revealed six key indicators that had a significant impact on the salt tolerance characteristics of F. tataricum, namely, germination potential, shoot fresh weight, root surface area, root average diameter, catalase activity, and superoxide dismutase activity.
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Hosseini MS, Samsampour D, Zahedi SM, Zamanian K, Rahman MM, Mostofa MG, Tran LSP. Melatonin alleviates drought impact on growth and essential oil yield of lemon verbena by enhancing antioxidant responses, mineral balance, and abscisic acid content. PHYSIOLOGIA PLANTARUM 2021; 172:1363-1375. [PMID: 33462814 DOI: 10.1111/ppl.13335] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/18/2020] [Accepted: 01/11/2021] [Indexed: 05/18/2023]
Abstract
Melatonin has recently emerged as a multifunctional biomolecule with promising aspects in plant stress tolerance. The present study examined the effects of foliar-sprayed melatonin (0, 100, and 200 μM) on growth and essential oil yield attributes of lemon verbena (Lippia citriodora) under water-shortage (mild, moderate and severe). Results revealed that melatonin minimized drought effects on lemon verbena, resulting in improved growth and essential oils yield. Drought impositions gradually and significantly reduced several growth parameters, such as plant height and biomass, whereas melatonin application revived the growth performance of lemon verbena. Melatonin protected the photosynthetic pigments and helped maintain the mineral balance at all levels of drought. Melatonin stimulated the accumulation of proline, soluble sugars and abscisic acid, which were positively correlated with a better preservation of leaf water status in drought-stressed plants. Melatonin also prevented oxidative damages by enhancing the superoxide dismutase, ascorbate peroxidase and catalase activities. Furthermore, increased levels of total phenolic compounds, chicoric acid, caffeic acid and chlorogenic acid, as well as ascorbate and total antioxidant capacity in melatonin-sprayed drought-stressed plants indicated that melatonin helped verbena plants to sustain antioxidant and medicinal properties during drought. Finally, melatonin treatments upheld the concentrations and yield of essential oils in the leaves of lemon verbena regardless of drought severities. These results provided new insights into melatonin-mediated drought tolerance in lemon verbena, and this strategy could be implemented for the successful cultivation of lemon verbena, and perhaps other medicinal plants, in drought-prone areas worldwide.
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Affiliation(s)
- Marjan Sadat Hosseini
- Department of Horticultural Science, Faculty of Agriculture, University of Hormozgan, Bandar Abbas, Iran
| | - Davood Samsampour
- Department of Horticultural Science, Faculty of Agriculture, University of Hormozgan, Bandar Abbas, Iran
| | - Seyed Morteza Zahedi
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Kazem Zamanian
- Department of Soil Science of Temperate Ecosystems, Georg August University of Goettingen, Goettingen, Germany
| | - Md Mezanur Rahman
- Department of Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Mohammad Golam Mostofa
- Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, Texas, USA
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
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Tiwari RK, Lal MK, Kumar R, Chourasia KN, Naga KC, Kumar D, Das SK, Zinta G. Mechanistic insights on melatonin-mediated drought stress mitigation in plants. PHYSIOLOGIA PLANTARUM 2021; 172:1212-1226. [PMID: 33305363 DOI: 10.1111/ppl.13307] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/26/2020] [Accepted: 12/05/2020] [Indexed: 05/21/2023]
Abstract
Drought stress imposes a serious threat to crop productivity and nutritional security. Drought adaptation mechanisms involve complex regulatory network comprising of various sensory and signaling molecules. In this context, melatonin has emerged as a potential signaling molecule playing a crucial role in imparting stress tolerance in plants. Melatonin pretreatment regulates various plant physiological processes such as osmoregulation, germination, photosynthesis, senescence, primary/secondary metabolism, and hormonal cross-talk under water deficit conditions. Melatonin-mediated regulation of ascorbate-glutathione (AsA-GSH) cycle plays a crucial role to scavenge reactive oxygen species generated in the cells during drought. Here, in this review, the current knowledge on the role of melatonin to ameliorate adverse effects of drought by modulating morphological, physiological, and redox regulatory processes is discussed. The role of melatonin to improve water absorption capacity of roots by regulating aquaporin channels and hormonal cross-talk involved in drought stress mitigation are also discussed. Overall, melatonin is a versatile bio-molecule involved in growth promotion and yield enhancement under drought stress that makes it a suitable candidate for eco-friendly crop production to ensure food security.
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Affiliation(s)
- Rahul Kumar Tiwari
- Division of Plant Protection, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
- Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Milan Kumar Lal
- Division of Crop Physiology, Biochemistry and Post-harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Ravinder Kumar
- Division of Plant Protection, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Kumar Nishant Chourasia
- Division of Crop Improvement, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Kailash Chandra Naga
- Division of Plant Protection, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Dharmendra Kumar
- Division of Crop Physiology, Biochemistry and Post-harvest Technology, ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh, India
| | - Sourav Kumar Das
- Radiation Biology and Health Science Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Gaurav Zinta
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
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39
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Melatonin-Induced Water Stress Tolerance in Plants: Recent Advances. Antioxidants (Basel) 2020; 9:antiox9090809. [PMID: 32882822 PMCID: PMC7554692 DOI: 10.3390/antiox9090809] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 11/16/2022] Open
Abstract
Water stress (drought and waterlogging) is severe abiotic stress to plant growth and development. Melatonin, a bioactive plant hormone, has been widely tested in drought situations in diverse plant species, while few studies on the role of melatonin in waterlogging stress conditions have been published. In the current review, we analyze the biostimulatory functions of melatonin on plants under both drought and waterlogging stresses. Melatonin controls the levels of reactive oxygen and nitrogen species and positively changes the molecular defense to improve plant tolerance against water stress. Moreover, the crosstalk of melatonin and other phytohormones is a key element of plant survival under drought stress, while this relationship needs further investigation under waterlogging stress. In this review, we draw the complete story of water stress on both sides-drought and waterlogging-through discussing the previous critical studies under both conditions. Moreover, we suggest several research directions, especially for waterlogging, which remains a big and vague piece of the melatonin and water stress puzzle.
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40
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Moustafa-Farag M, Mahmoud A, Arnao MB, Sheteiwy MS, Dafea M, Soltan M, Elkelish A, Hasanuzzaman M, Ai S. Melatonin-Induced Water Stress Tolerance in Plants: Recent Advances. Antioxidants (Basel) 2020. [PMID: 32882822 DOI: 10.20944/preprints202008.0359.v1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
Water stress (drought and waterlogging) is severe abiotic stress to plant growth and development. Melatonin, a bioactive plant hormone, has been widely tested in drought situations in diverse plant species, while few studies on the role of melatonin in waterlogging stress conditions have been published. In the current review, we analyze the biostimulatory functions of melatonin on plants under both drought and waterlogging stresses. Melatonin controls the levels of reactive oxygen and nitrogen species and positively changes the molecular defense to improve plant tolerance against water stress. Moreover, the crosstalk of melatonin and other phytohormones is a key element of plant survival under drought stress, while this relationship needs further investigation under waterlogging stress. In this review, we draw the complete story of water stress on both sides-drought and waterlogging-through discussing the previous critical studies under both conditions. Moreover, we suggest several research directions, especially for waterlogging, which remains a big and vague piece of the melatonin and water stress puzzle.
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Affiliation(s)
- Mohamed Moustafa-Farag
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
| | - Ahmed Mahmoud
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
- Laboratory of Germplasm Innovation and Molecular Breeding, Institute of Vegetable Science, Zhejiang University, Hangzhou 310058, China
| | - Marino B Arnao
- Department of Plant Physiology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain
| | - Mohamed S Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed Dafea
- Horticulture Research Institute, Agriculture Research Center, 9 Gmaa St, Giza 12619, Egypt
| | - Mahmoud Soltan
- Horticulture and Crop Science Department, Ohio Agricultural Research and Development Center, Columbus, The Ohio State University, Columbus, OH 43210, USA
- Vegetable Production under Modified Environment Department, Horticulture Research Institute, Agriculture Research Center, Cairo 11865, Egypt
| | - Amr Elkelish
- Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Shaoying Ai
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
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