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Barwal SK, Shah SH, Pawar A, Siddiqui MH, Agnihotri RK, Vimala Y, Wani SH. Mechanistic insights of salicylic acid-mediated salt stress tolerance in Zea mays L. seedlings. Heliyon 2024; 10:e34486. [PMID: 39082030 PMCID: PMC11284417 DOI: 10.1016/j.heliyon.2024.e34486] [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: 01/25/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 08/02/2024] Open
Abstract
Elevated sodium level (Na+) poses significant threat to crop plant physio-biochemical processes, leading to impaired growth followedby decline in productivity. Addressing this challenge, requires an eco-friendly and cost-effective strategy that enhances plant salt stress tolerance capacity. In this context, the exogenous source of plant growth regulators (PGRs) proved to be an efficient approach. Of various PGRs, salicylic acid (SA) is an emerging signaling molecule that boosts plant stress endurance mechanism. This study investigates SA-mediated salt stress tolerance in maize (Zea mays L.) seedlings, by examining morpho-physiological and biochemical traits. Maize seedlings were subjected to varying levels of salt stress (0, 25, 50, 75, 100, and 150 mM NaCl) for a period of 10-days. The results revealed that, a substantial decline in germination percentage, shoot and root length, plant biomass, vigour index, and various other physiological parameters under salt stress causing concentrations. Conversely, salt stress increased oxidative stress indicators, including hydrogen peroxide (H2O2) and malondialdehyde (MDA), osmolytes and elemental concentrations as well as antioxident enzymes (SOD, CAT, POX, APX, GR, AsA). However, the exogenous supplementation of SA at 0.1 mM significantly restored most morpho-physiological attributes in maize under salt stress conditions. This suggests that SA actively triggers the ascorbate-glutathione (AsA-GSH) pathway and other key enzymes, leading to sodium extrusion and improving antioxidant defense in maize seedlings. This finding provides valuable insights for maize farmers that employing SA could lead to improved maize production in saline soils.
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Affiliation(s)
- Sandeep Kumar Barwal
- Plant Physiology and Tissue Culture Laboratory, Department of Botany, Chaudhary Charan Singh University, Meerut, 250004, India
- Department of Botany, NREC College, Khurja, Bulandshahr, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Sajad Hussain Shah
- Advanced Plant Physiology and Biochemistry Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Anita Pawar
- Department of Botany, NREC College, Khurja, Bulandshahr, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Manzer H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | | | - Yerramilli Vimala
- Plant Physiology and Tissue Culture Laboratory, Department of Botany, Chaudhary Charan Singh University, Meerut, 250004, India
| | - Shabir Hussain Wani
- Mountain Research Center for Field Crop, Khudwani, Sher-e-Kashmir University of Agricultural Sciences and Technology Srinagar, Jammu and Kashmir, India
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Zhu L, Zhang M, Yang X, Zi Y, Yin T, Li X, Wen K, Zhao K, Wan J, Zhang H, Luo X, Zhang H. Genome-wide identification of bZIP transcription factors in 12 Rosaceae species and modeling of novel mechanisms of EjbZIPs response to salt stress. THE PLANT GENOME 2024:e20468. [PMID: 38840305 DOI: 10.1002/tpg2.20468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/18/2024] [Accepted: 05/02/2024] [Indexed: 06/07/2024]
Abstract
In plantae, basic leucine zipper (bZIP) transcription factors (TFs) are widespread and regulate a variety of biological processes under abiotic stress. However, it has not been extensively studied in Rosaceae, and the functional effects of bZIP on Eriobotrya japonica under salt stress are still unknown. Therefore, in this study, the bZIP TF family of 12 species of Rosaceae was analyzed by bioinformatics method, and the expression profile and quantitative real-time polymerase chain reaction of E. japonica under salt stress were analyzed. The results showed that a total of 869 bZIP TFs were identified in 12 species of Rosaceae and divided into nine subfamilies. Differences in promoter cis-elements between subfamilies vary depending on their role. Species belonging to the same subfamily have a similar number of chromosomes and the number of genes contained on each chromosome. Gene duplication analysis has found segmental duplication to be a prime force in the evolution of Rosaceae species. In addition, nine EjbZIPs were significantly different, including seven up-regulated and two down-regulated in E. japonica under salt stress. Especially, EjbZIP13 was involved in the expression of SA-responsive proteins by binding to the NPR1 gene. EjbZIP27, EjbZIP30, and EjbZIP38 were highly expressed in E. japonica under salt stress, thus improving the salt tolerance capacity of the plants. These results can provide a theoretical basis for exploring the characteristics and functions of the bZIP TF family in more species and breeding salt-tolerant E. japonica varieties. It also provides a reference for resolving the response mechanism of bZIP TF in 12 Rosaceae species under salt stress.
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Affiliation(s)
- Ling Zhu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Bao Shan, China
| | | | - Xiuyao Yang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Yinqiang Zi
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Tuo Yin
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Xulin Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Ke Wen
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Ke Zhao
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Jiaqiong Wan
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Huiyun Zhang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Bao Shan, China
| | - Xinping Luo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agriculture Sciences, Bao Shan, China
| | - Hanyao Zhang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
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Song W, Shao H, Zheng A, Zhao L, Xu Y. Advances in Roles of Salicylic Acid in Plant Tolerance Responses to Biotic and Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2023; 12:3475. [PMID: 37836215 PMCID: PMC10574961 DOI: 10.3390/plants12193475] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
A multitude of biotic and abiotic stress factors do harm to plants by bringing about diseases and inhibiting normal growth and development. As a pivotal signaling molecule, salicylic acid (SA) plays crucial roles in plant tolerance responses to both biotic and abiotic stresses, thereby maintaining plant normal growth and improving yields under stress. In view of this, this paper mainly discusses the role of SA in both biotic and abiotic stresses of plants. SA regulates the expression of genes involved in defense signaling pathways, thus enhancing plant immunity. In addition, SA mitigates the negative effects of abiotic stresses, and acts as a signaling molecule to induce the expression of stress-responsive genes and the synthesis of stress-related proteins. In addition, SA also improves certain yield-related photosynthetic indexes, thereby enhancing crop yield under stress. On the other hand, SA acts with other signaling molecules, such as jasmonic acid (JA), auxin, ethylene (ETH), and so on, in regulating plant growth and improving tolerance under stress. This paper reviews recent advances in SA's roles in plant stress tolerance, so as to provide theoretical references for further studies concerning the decryption of molecular mechanisms for SA's roles and the improvement of crop management under stress.
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Affiliation(s)
- Weiyi Song
- School of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China; (W.S.); (A.Z.); (L.Z.); (Y.X.)
- Key Laboratory on Agricultural Microorganism Resources Development of Shangqiu, Shangqiu 476000, China
| | - Hongbo Shao
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-Agriculture, Yancheng Teachers University, Yancheng 224002, China
- Salt-Soil Agricultural Center, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agriculture Sciences (JAAS), Nanjing 210014, China
| | - Aizhen Zheng
- School of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China; (W.S.); (A.Z.); (L.Z.); (Y.X.)
- Key Laboratory on Agricultural Microorganism Resources Development of Shangqiu, Shangqiu 476000, China
| | - Longfei Zhao
- School of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China; (W.S.); (A.Z.); (L.Z.); (Y.X.)
- Key Laboratory on Agricultural Microorganism Resources Development of Shangqiu, Shangqiu 476000, China
| | - Yajun Xu
- School of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China; (W.S.); (A.Z.); (L.Z.); (Y.X.)
- Key Laboratory on Agricultural Microorganism Resources Development of Shangqiu, Shangqiu 476000, China
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Alamer KH. Exogenous Hydrogen Sulfide Supplementation Alleviates the Salinity-Stress-Mediated Growth Decline in Wheat ( Triticum aestivum L.) by Modulating Tolerance Mechanisms. PLANTS (BASEL, SWITZERLAND) 2023; 12:3464. [PMID: 37836204 PMCID: PMC10574924 DOI: 10.3390/plants12193464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
The impact of the exogenous supplementation of hydrogen sulfide (20 and 50 µM HS) on growth, enzyme activity, chlorophyll pigments, and tolerance mechanisms was studied in salinity-stressed (100 mM NaCl) wheat. Salinity significantly reduced height, fresh and dry weight, chlorophyll, and carotenoids. However, the supplementation of HS (at both concentrations) increased these attributes and also mitigated the decline to a considerable extent. The exogenous supplementation of HS reduced the accumulation of hydrogen peroxide (H2O2) and methylglyoxal (MG), thereby reducing lipid peroxidation and increasing the membrane stability index (MSI). Salinity stress increased H2O2, MG, and lipid peroxidation while reducing the MSI. The activity of nitrate reductase was reduced due to NaCl. However, the supplementation of HS alleviated the decline with obvious effects being seen due to 50 µM HS. The activity of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase) was assayed and the content of reduced glutathione (GSH) increased due to salt stress and the supplementation of HS further enhanced their activity. A decline in ascorbic acid due to salinity stress was alleviated due to HS treatment. HS treatment increased the endogenous concentration of HS and nitric oxide (NO) under normal conditions. However, under salinity stress, HS supplementation resulted in a reduction in HS and NO as compared to NaCl-treated plants. In addition, proline and glycine betaine increased due to HS supplementation. HS treatment reduced sodium levels, while the increase in potassium justified the beneficial role of applied HS in improving salt tolerance in wheat.
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Affiliation(s)
- Khalid H Alamer
- Biological Sciences Department, Faculty of Science and Arts, King Abdulaziz University, Rabigh 21911, Saudi Arabia
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Islam K, Rawoof A, Kumar A, Momo J, Ahmed I, Dubey M, Ramchiary N. Genetic Regulation, Environmental Cues, and Extraction Methods for Higher Yield of Secondary Metabolites in Capsicum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37289974 DOI: 10.1021/acs.jafc.3c01901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Capsicum (chili pepper) is a widely popular and highly consumed fruit crop with beneficial secondary metabolites such as capsaicinoids, carotenoids, flavonoids, and polyphenols, among others. Interestingly, the secondary metabolite profile is a dynamic function of biosynthetic enzymes, regulatory transcription factors, developmental stage, abiotic and biotic environment, and extraction methods. We propose active manipulable genetic, environmental, and extraction controls for the modulation of quality and quantity of desired secondary metabolites in Capsicum species. Specific biosynthetic genes such as Pun (AT3) and AMT in the capsaicinoids pathway and PSY, LCY, and CCS in the carotenoid pathway can be genetically engineered for enhanced production of capsaicinoids and carotenoids, respectively. Generally, secondary metabolites increase with the ripening of the fruit; however, transcriptional regulators such as MYB, bHLH, and ERF control the extent of accumulation in specific tissues. The precise tuning of biotic and abiotic factors such as light, temperature, and chemical elicitors can maximize the accumulation and retention of secondary metabolites in pre- and postharvest settings. Finally, optimized extraction methods such as ultrasonication and supercritical fluid method can lead to a higher yield of secondary metabolites. Together, the integrated understanding of the genetic regulation of biosynthesis, elicitation treatments, and optimization of extraction methods can maximize the industrial production of secondary metabolites in Capsicum.
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Affiliation(s)
- Khushbu Islam
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abdul Rawoof
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ajay Kumar
- Department of Plant Sciences, School of Biological Sciences, Central University of Kerala, Kasaragod 671316, Kerala, India
| | - John Momo
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Ilyas Ahmed
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Meenakshi Dubey
- Department of Biotechnology, Delhi Technological University, New Delhi 110042, India
| | - Nirala Ramchiary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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Sobrinho TG, da Silva AAR, de Lima GS, de Lima VLA, Borges VE, Nunes KG, Soares LADA, Saboya LMF, Gheyi HR, Gomes JP, Fernandes PD, de Azevedo CAV. Foliar Applications of Salicylic Acid on Boosting Salt Stress Tolerance in Sour Passion Fruit in Two Cropping Cycles. PLANTS (BASEL, SWITZERLAND) 2023; 12:2023. [PMID: 37653940 PMCID: PMC10222615 DOI: 10.3390/plants12102023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 08/13/2023]
Abstract
Brazil stands out as the largest producer of sour passion fruit; however, the water available for irrigation is mostly saline, which can limit its cultivation. This study was carried out with the objective of evaluating the effects of salicylic acid in the induction of tolerance in sour passion fruit to salt stress. The assay was conducted in a protected environment, using a completely randomized design in a split-plot scheme, with the levels of electrical conductivity of the irrigation water (0.8, 1.6, 2.4, 3.2, and 4.0 dS m-1) considering the plots and concentrations of salicylic acid (0, 1.2, 2.4, and 3.6 mM) the subplots, with three replications. The physiological indices, production components, and postharvest quality of sour passion fruit were negatively affected by the increase in the electrical conductivity of irrigation water, and the effects of salt stress were intensified in the second cycle. In the first cycle, the foliar application of salicylic acid at concentrations between 1.0 and 1.4 mM partially reduced the harmful effects of salt stress on the relative water content of leaves, electrolyte leakage, gas exchange, and synthesis of photosynthetic pigments, in addition to promoting an increase in the yield and quality parameters of sour passion fruit.
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Affiliation(s)
- Thiago Galvão Sobrinho
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - André Alisson Rodrigues da Silva
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Geovani Soares de Lima
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Vera Lúcia Antunes de Lima
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Vitória Ediclécia Borges
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Kheila Gomes Nunes
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | | | - Luciano Marcelo Fallé Saboya
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Hans Raj Gheyi
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Josivanda Palmeira Gomes
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Pedro Dantas Fernandes
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
| | - Carlos Alberto Vieira de Azevedo
- Post Graduate Program Agricultural Engineering, Federal University of Campina Grande, Campina Grande 58430-380, PB, Brazil; (T.G.S.); (A.A.R.d.S.); (V.L.A.d.L.); (V.E.B.); (K.G.N.); (L.M.F.S.); (H.R.G.); (P.D.F.); (C.A.V.d.A.)
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Al-Huqail AA, Eissa MA, Ghoneim AM, Alsalmi RA, Al Thagafi ZM, Abeed AHA, Tammam SA. Phytoremediation of dinitrophenol from wastewater by atriplex lentiformis: effect of salicylic acid. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1558-1566. [PMID: 36740728 DOI: 10.1080/15226514.2023.2175779] [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] [Indexed: 06/18/2023]
Abstract
Quail bush [Atriplex lentiformis (Torr.) S. Wats] plants were used in removing 2, 4-dinitrophenol (DNP) from wastewater in a hydroponic experiment. The hydroponic system contained three doses of DNP, i.e., 0, 10, and 20 mg L-1. Quail bush plants were sprayed with 0.1 mM salicylic acid (SA) to study its role in resisting DNP toxicity. DNP significantly (p < 0.05) reduced plant growth. Exposure of A. lentiformis plants to 20 mg L-1 of DNP reduced the total chlorophyl and relative water content by 39 and 24%, respectively. SA improved the antioxidant defense in terms of ascorbate peroxidase (APX) and polyphenol oxidase (PPO) activities. SA alleviated DNP toxicity by enhancing the production of osmoprotectants, e.g.,proline, phenols, and carbohydrates. SA enhanced the removal efficiency of DNP and the highest removal efficiency (96%) was recorded in the plants sprayed with SA and grown on 10 mg L-1 of DNP. A. lentiformis is a halophytic plant that has good physiological characteristics to resist 2, 4-dinitrophenol toxicity in wastewaters and is qualified to purify water from these harmful compounds. Exogenous application of 0.1 mM SA increased the defense system in A. lentiformis against 2, 4-dinitrophenol toxicity and enhanced the removal efficiency.
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Affiliation(s)
- Arwa Abdulkreem Al-Huqail
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mamdouh A Eissa
- Department of Soils and Water, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Adel M Ghoneim
- Agricultural Research Center, Field Crops Research Institute, Giza, Egypt
| | - Reem A Alsalmi
- Biology Department, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
| | | | - Amany H A Abeed
- Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Suzan A Tammam
- Biology Department, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
- Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut, Egypt
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8
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Nicolas-Espinosa J, Garcia-Ibañez P, Lopez-Zaplana A, Yepes-Molina L, Albaladejo-Marico L, Carvajal M. Confronting Secondary Metabolites with Water Uptake and Transport in Plants under Abiotic Stress. Int J Mol Sci 2023; 24:ijms24032826. [PMID: 36769147 PMCID: PMC9917477 DOI: 10.3390/ijms24032826] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/23/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Phenolic compounds and glucosinolates are secondary plant metabolites that play fundamental roles in plant resistance to abiotic stress. These compounds have been found to increase in stress situations related to plant adaptive capacity. This review assesses the functions of phenolic compounds and glucosinolates in plant interactions involving abiotic stresses such as drought, salinity, high temperature, metals toxicity, and mineral deficiency or excess. Furthermore, their relation with water uptake and transport mediated through aquaporins is reviewed. In this way, the increases of phenolic compounds and glucosinolate synthesis have been related to primary responses to abiotic stress and induction of resistance. Thus, their metabolic pathways, root exudation, and external application are related to internal cell and tissue movement, with a lack of information in this latter aspect.
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9
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Kumar S, Shah SH, Vimala Y, Jatav HS, Ahmad P, Chen Y, Siddique KHM. Abscisic acid: Metabolism, transport, crosstalk with other plant growth regulators, and its role in heavy metal stress mitigation. FRONTIERS IN PLANT SCIENCE 2022; 13:972856. [PMID: 36186053 PMCID: PMC9515544 DOI: 10.3389/fpls.2022.972856] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 08/17/2022] [Indexed: 05/06/2023]
Abstract
Heavy metal (HM) stress is threatening agricultural crops, ecological systems, and human health worldwide. HM toxicity adversely affects plant growth, physiological processes, and crop productivity by disturbing cellular ionic balance, metabolic balance, cell membrane integrity, and protein and enzyme activities. Plants under HM stress intrinsically develop mechanisms to counter the adversities of HM but not prevent them. However, the exogenous application of abscisic acid (ABA) is a strategy for boosting the tolerance capacity of plants against HM toxicity by improving osmolyte accumulation and antioxidant machinery. ABA is an essential plant growth regulator that modulates various plant growth and metabolic processes, including seed development and germination, vegetative growth, stomatal regulation, flowering, and leaf senescence under diverse environmental conditions. This review summarizes ABA biosynthesis, signaling, transport, and catabolism in plant tissues and the adverse effects of HM stress on crop plants. Moreover, we describe the role of ABA in mitigating HM stress and elucidating the interplay of ABA with other plant growth regulators.
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Affiliation(s)
- Sandeep Kumar
- Plant Physiology and Tissue Culture Laboratory, Department of Botany, Chaudhary Charan Singh University, Meerut, India
| | - Sajad Hussain Shah
- Plant Physiology and Tissue Culture Laboratory, Department of Botany, Chaudhary Charan Singh University, Meerut, India
| | - Yerramilli Vimala
- Plant Physiology and Tissue Culture Laboratory, Department of Botany, Chaudhary Charan Singh University, Meerut, India
| | - Hanuman Singh Jatav
- Soil Science and Agricultural Chemistry, Sri Karan Narendra Agriculture University Jobner, Jaipur, India
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, Jammu and Kashmir, India
| | - Yinglong Chen
- The UWA Institute of Agriculture and School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
| | - Kadambot H. M. Siddique
- The UWA Institute of Agriculture and School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia
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10
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Liu J, Qiu G, Liu C, Li H, Chen X, Fu Q, Lin Y, Guo B. Salicylic Acid, a Multifaceted Hormone, Combats Abiotic Stresses in Plants. LIFE (BASEL, SWITZERLAND) 2022; 12:life12060886. [PMID: 35743917 PMCID: PMC9225363 DOI: 10.3390/life12060886] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/10/2022] [Accepted: 06/11/2022] [Indexed: 11/16/2022]
Abstract
In recent decades, many new and exciting findings have paved the way to the better understanding of plant responses in various environmental changes. Some major areas are focused on role of phytohormone during abiotic stresses. Salicylic acid (SA) is one such plant hormone that has been implicated in processes not limited to plant growth, development, and responses to environmental stress. This review summarizes the various roles and functions of SA in mitigating abiotic stresses to plants, including heating, chilling, salinity, metal toxicity, drought, ultraviolet radiation, etc. Consistent with its critical roles in plant abiotic tolerance, this review identifies the gaps in the literature with regard to the complex signalling network between SA and reactive oxygen species, ABA, Ca2+, and nitric oxide. Furthermore, the molecular mechanisms underlying signalling networks that control development and stress responses in plants and underscore prospects for future research on SA concerning abiotic-stressed plants are also discussed.
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