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Zhang W, Wang D, Cao D, Chen J, Wei X. Exploring the potentials of Sesuvium portulacastrum L. for edibility and bioremediation of saline soils. FRONTIERS IN PLANT SCIENCE 2024; 15:1387102. [PMID: 38916037 PMCID: PMC11194377 DOI: 10.3389/fpls.2024.1387102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/21/2024] [Indexed: 06/26/2024]
Abstract
Sesuvium portulacastrum L. is a flowering succulent halophyte in the ice plant family Aizoaceae. There are various ecotypes distributed in sandy coastlines and salty marshlands in tropical and subtropical regions with the common name of sea purslane. These plants are tolerant to salt, drought, and flooding stresses and have been used for the stabilization of sand dunes and the restoration of coastal areas. With the increased salinization of agricultural soils and the widespread pollution of toxic metals in the environment, as well as excessive nutrients in waterbodies, S. portulacastrum has been explored for the desalination of saline soils and the phytoremediation of metals from contaminated soils and nitrogen and phosphorus from eutrophic water. In addition, sea purslane has nutraceutical and pharmaceutical value. Tissue analysis indicates that many ecotypes are rich in carbohydrates, proteins, vitamins, and mineral nutrients. Native Americans in Florida eat it raw, pickled, or cooked. In the Philippines, it is known as atchara after being pickled. S. portulacastrum contains high levels of ecdysteroids, which possess antidiabetic, anticancer, and anti-inflammatory activities in mammals. In this review article, we present the botanical information, the physiological and molecular mechanisms underlying the tolerance of sea purslane to different stresses, its nutritional and pharmaceutical value, and the methods for its propagation and production in saline soils and waterbodies. Its adaptability to a wide range of stressful environments and its role in the production of valuable bioactive compounds suggest that S. portulacastrum can be produced in saline soils as a leafy vegetable and is a valuable genetic resource that can be used for the bioremediation of soil salinity and eutrophic water.
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Affiliation(s)
- Wenbin Zhang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Dan Wang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Dingding Cao
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Jianjun Chen
- Mid-Florida Research and Education Center, Department of Environmental Horticulture, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, United States
| | - Xiangying Wei
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
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Tian F, Wang J, Ding F, Wang L, Yang Y, Bai X, Tan C, Liao X. Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019. Front Microbiol 2024; 15:1358137. [PMID: 38562471 PMCID: PMC10982344 DOI: 10.3389/fmicb.2024.1358137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Paphiopedilum barbigerum is currently the rarest and most endangered species of orchids in China and has significant ornamental value. The mature seeds of P. barbigerum are difficult to germinate owing to the absence of an endosperm and are highly dependent on mycorrhizal fungi for germination and subsequent development. However, little is known about the regulation mechanisms of symbiosis and symbiotic germination of P. barbigerum seeds. Methods Herein, transcriptomics and proteomics were used to explore the changes in the P. barbigerum seeds after inoculation with (FQXY019 treatment group) or without (control group) Epulorhiza sp. FQXY019 at 90 days after germination. Results Transcriptome sequencing revealed that a total of 10,961 differentially expressed genes (DEGs; 2,599 upregulated and 8,402 downregulated) were identified in the control and FQXY019 treatment groups. These DEGs were mainly involved in carbohydrate, fatty acid, and amino acid metabolism. Furthermore, the expression levels of candidate DEGs related to nodulin, Ca2+ signaling, and plant lectins were significantly affected in P. barbigerum in the FQXY019 treatment groups. Subsequently, tandem mass tag-based quantitative proteomics was performed to recognize the differentially expressed proteins (DEPs), and a total of 537 DEPs (220 upregulated and 317 downregulated) were identified that were enriched in processes including photosynthesis, photosynthesis-antenna proteins, and fatty acid biosynthesis and metabolism. Discussion This study provides novel insight on the mechanisms underlying the in vitro seed germination and protocorm development of P. barbigerum by using a compatible fungal symbiont and will benefit the reintroduction and mycorrhizal symbiotic germination of endangered orchids.
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Affiliation(s)
- Fan Tian
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Juncai Wang
- Guizhou Academy of Sciences, Guiyang, Guizhou, China
| | - Fangjun Ding
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Lianhui Wang
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Yanbing Yang
- Guizhou Academy of Forestry, Guiyang, Guizhou, China
- Key Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, China
| | - Xinxiang Bai
- College of Forestry, Guizhou University, Guiyang, Guizhou, China
| | - Chengjiang Tan
- Guizhou Maolan National Nature Reserve Administration, Libo, Guizhou, China
| | - Xiaofeng Liao
- Guizhou Academy of Sciences, Guiyang, Guizhou, China
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Kulkarni J, Sahoo SA, Herzyk P, Barvkar VT, Kumar SA, Ravichandran J, Samal A, Amtmann A, Borde M, Suprasanna P, Srivastava AK. Early-responsive molecular signatures associated with halophytic adaptation in Sesuvium portulacastrum (L.). PLANT, CELL & ENVIRONMENT 2024; 47:961-975. [PMID: 38044749 DOI: 10.1111/pce.14767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 08/22/2023] [Accepted: 11/04/2023] [Indexed: 12/05/2023]
Abstract
Sesuvium portulacastrum (L.) is a halophyte, adapted to grow naturally under saline environments. The ability to use Na and K interchangeably indicated its facultative halophyte nature. No significant growth reduction occurs in seedlings up to 250 mM NaCl, except for curling of the youngest leaf. Within 8 h of salt treatment, seedlings accumulate proline, glycine betaine and other amino acids in both root and shoot. Despite a continued increase of tissue Na content, the number of differentially expressed genes (DEGs) decreases between 8 and 24 h of salt exposure, indicating transcriptional restoration after the initial osmotic challenge. At 8 h, upregulated genes mainly encode transporters and transcription factors, while genes in growth-related pathways such as photosynthesis and ribosome-associated biogenesis are suppressed. Overexpression of SpRAB18 (an ABA-responsive dehydrin), one of the most strongly induced DEGs, in soybean was found to increase biomass in control conditions and the growth benefit was maintained when plants were grown in 100 mM NaCl, indicating conservation of function in halophyte and glycophyte. An open-access transcriptome database "SesuviumKB" (https://cb.imsc.res.in/sesuviumkb/) was developed to involve the scientific community in wide-scale functional studies of S. portulacastrum genes, that could pave the way to engineer salt tolerance in crops.
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Affiliation(s)
- Jayant Kulkarni
- Department of Botany, Savitribai Phule Pune University, Pune, India
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Sripati A Sahoo
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
- Department of Plant Molecular Biology and Biotechnology, Indira Gandhi Krishi Vishwavidyalaya, Raipur, India
| | - Pawel Herzyk
- School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | | | - Sanjukta A Kumar
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Janani Ravichandran
- The Institute of Mathematical Sciences (IMSc), Chennai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Areejit Samal
- The Institute of Mathematical Sciences (IMSc), Chennai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Anna Amtmann
- School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Mahesh Borde
- Department of Botany, Savitribai Phule Pune University, Pune, India
| | - Penna Suprasanna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Ashish K Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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Wang Y, Ma W, Fu H, Li L, Ruan X, Zhang X. Effects of Salinity Stress on Growth and Physiological Parameters and Related Gene Expression in Different Ecotypes of Sesuvium portulacastrum on Hainan Island. Genes (Basel) 2023; 14:1336. [PMID: 37510241 PMCID: PMC10380013 DOI: 10.3390/genes14071336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
We conducted a study to examine the growth and physiological changes in 12 different ecotypes of Sesuvium portulacastrum collected from Hainan Island in China. These ecotypes were subjected to different concentrations (0, 200, 400, and 600 mmol/L) of sodium chloride (NaCl) salt stress for 14 days. We also analyzed the expression of metabolic genes related to stress response. Under low salt stress, indicators such as plant height in region K (0 mmol/L: 45% and highest at 200 mmol/L: 80%), internode length (0 mmol/L: 0.38, 200 mmol/L: 0.87, 400 mmol/L: 0.25, and 600 mmol/L: 1.35), as well as leaf area, relative water content, fresh weight, and dry weight exhibited an overall increasing trend with the increase in salt concentration. However, as the salt concentration increased, these indicators showed a decreasing trend. Proline and malondialdehyde contents increased with higher salt concentrations. When the NaCl concentration was 400 mmol/L, MDA content in the leaves was highest in the regions E (196.23%), F (94.28%), J (170.10%), and K (136.08%) as compared to the control group, respectively. Most materials demonstrated a significant decrease in chlorophyll a, chlorophyll b, and total chlorophyll content compared to the control group. Furthermore, the ratio of chlorophyll a to chlorophyll b (Rab) varied among different materials. Using principal component analysis, we identified three ecotypes (L from Xinglong Village, Danzhou City; B from Shuigoupo Village, Lingshui County; and J from Haidongfang Park, Dongfang City) that represented high, medium, and low salt tolerance levels, respectively, based on the above growth and physiological indexes. To further investigate the expression changes of related genes at the transcriptional level, we employed qRT-PCR. The results showed that the relative expression of SpP5CS1, SpLOX1, and SpLOX1 genes increased with higher salt concentrations, which corresponded to the accumulation of proline and malondialdehyde content, respectively. However, the relative expression of SpCHL1a and SpCHL1b did not exhibit a consistent pattern. This study contributes to our understanding of the salt tolerance mechanism in the true halophyte S. portulacastrum, providing a solid theoretical foundation for further research in this field.
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Affiliation(s)
- Yong Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Wei Ma
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Haijiang Fu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Liting Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Xueyu Ruan
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Xueyan Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China
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Jia H, Ye J, Wu Y, Zhang M, Peng W, Wang H, Tang D. Evaluation and characterization of biochar on the biogeochemical behavior of polycyclic aromatic hydrocarbons in mangrove wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161039. [PMID: 36549525 DOI: 10.1016/j.scitotenv.2022.161039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/24/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
As the inter-tidal regions between land and ocean, mangrove ecosystems have high polycyclic aromatic hydrocarbons (PAHs) content, and the over accumulation of PAHs in mangrove wetland poses a serious ecological risk to the health of plant and living creatures. Comparison to the agricultural sources -biochar, biochar produced from wetland plant has lower O/C (molar ratio), larger N contents, higher stability and more benefits. However, whether the rhizosphere action occurs in biochar- amended sediment and how to influence the biogeochemical behavior of PAH have rarely been reported. In this context, a leaching procedure and pot experiment (60-d) were performed on migration and transformation of PAH at the sediment, and toxicity and their bioavailability in plant affected by the presence of Kandelia obovate-derived biochar in Southeast China. Root exudates amendments significantly increased the cumulative leaching-loss of pyrene by 36-51 % with or without biochar amendment via continuous diffusion and partition process, and biochar amendments decreased the bioavailability of pyrene (16.8-25.8 %) probably due to a faster pyrene sorption on inter-phase transport against desorption. The regression analysis indicated a significant relationship (p < 0.05) between leachate pH and pyrene concentrations. Notably, the bioaccumulation of pyrene on K. obovate parts had significant negative correlation (p < 0.05) to biochar. The activities of four key antioxidizes (phenylalanine ammonia-lyase, dismutases, peroxidases and catalases) were significantly decreased with the application of biochar. Moreover, biochar plays a positive role in cytochrome C release and phosphatidylserine secretion, and a combined biochar-rhizosphere approach can improve the stress tolerance and resistance of K. obovate with an enhanced synergetic effect, which could be a feasible remediation strategy for alleviating the mangrove sediment contaminated by PAH.
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Affiliation(s)
- Hui Jia
- Institute of Environment and Ecology, School of Emergency Management, Jiangsu University, Jiangsu University, Zhenjiang 212013, China; School of the Environment and Safety Engineering & Institute of Environment and Ecology, Jiangsu University, Zhenjiang 212013, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jinhui Ye
- School of the Environment and Safety Engineering & Institute of Environment and Ecology, Jiangsu University, Zhenjiang 212013, China
| | - Yifan Wu
- School of the Environment and Safety Engineering & Institute of Environment and Ecology, Jiangsu University, Zhenjiang 212013, China
| | - Mengqi Zhang
- School of the Environment and Safety Engineering & Institute of Environment and Ecology, Jiangsu University, Zhenjiang 212013, China
| | - Weihua Peng
- Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, China
| | - He Wang
- Xuzhou Medical University, Affiliated Hospital, Xuzhou 221004, China.
| | - Dehao Tang
- Guangzhou Marine Geological Survey, China Geology Survey, Guangzhou 511458, China.
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Chen Y, Zhou Y, Cai Y, Feng Y, Zhong C, Fang Z, Zhang Y. De novo transcriptome analysis of high-salinity stress-induced antioxidant activity and plant phytohormone alterations in Sesuvium portulacastrum. FRONTIERS IN PLANT SCIENCE 2022; 13:995855. [PMID: 36212296 PMCID: PMC9540214 DOI: 10.3389/fpls.2022.995855] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Sesuvium portulacastrum has a strong salt tolerance and can grow in saline and alkaline coastal and inland habitats. This study investigated the physiological and molecular responses of S. portulacastrum to high salinity by analyzing the changes in plant phytohormones and antioxidant activity, including their differentially expressed genes (DEGs) under similar high-salinity conditions. High salinity significantly affected proline (Pro) and hydrogen peroxide (H2O2) in S. portulacastrum seedlings, increasing Pro and H2O2 contents by 290.56 and 83.36%, respectively, compared to the control. Antioxidant activities, including superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), significantly increased by 83.05, 205.14, and 751.87%, respectively, under high salinity. Meanwhile, abscisic acid (ABA) and gibberellic acid (GA3) contents showed the reverse trend of high salt treatment. De novo transcriptome analysis showed that 36,676 unigenes were matched, and 3,622 salt stress-induced DEGs were identified as being associated with the metabolic and biological regulation processes of antioxidant activity and plant phytohormones. POD and SOD were upregulated under high-salinity conditions. In addition, the transcription levels of genes involved in auxin (SAURs and GH3), ethylene (ERF1, ERF3, ERF114, and ABR1), ABA (PP2C), and GA3 (PIF3) transport or signaling were altered. This study identified key metabolic and biological processes and putative genes involved in the high salt tolerance of S. portulacastrum and it is of great significance for identifying new salt-tolerant genes to promote ecological restoration of the coastal strand.
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Affiliation(s)
- YiQing Chen
- Hainan Academy of Forestry, Hainan Mangrove Research Institute, Haikou, China
| | - Yan Zhou
- Mangrove Institute, Lingnan Normal University, Zhanjiang, China
| | - Yuyi Cai
- Mangrove Institute, Lingnan Normal University, Zhanjiang, China
| | - Yongpei Feng
- Mangrove Institute, Lingnan Normal University, Zhanjiang, China
| | - Cairong Zhong
- Hainan Academy of Forestry, Hainan Mangrove Research Institute, Haikou, China
| | - ZanShan Fang
- Hainan Academy of Forestry, Hainan Mangrove Research Institute, Haikou, China
| | - Ying Zhang
- Hainan Academy of Forestry, Hainan Mangrove Research Institute, Haikou, China
- Mangrove Institute, Lingnan Normal University, Zhanjiang, China
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Wang D, Yang N, Zhang C, He W, Ye G, Chen J, Wei X. Transcriptome analysis reveals molecular mechanisms underlying salt tolerance in halophyte Sesuvium portulacastrum. FRONTIERS IN PLANT SCIENCE 2022; 13:973419. [PMID: 36212287 PMCID: PMC9537864 DOI: 10.3389/fpls.2022.973419] [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: 06/20/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Soil salinity is an important environmental problem that seriously affects plant growth and crop productivity. Phytoremediation is a cost-effective solution for reducing soil salinity and potentially converting the soils for crop production. Sesuvium portulacastrum is a typical halophyte which can grow at high salt concentrations. In order to explore the salt tolerance mechanism of S. portulacastrum, rooted cuttings were grown in a hydroponic culture containing ½ Hoagland solution with or without addition of 400 mM Na for 21 days. Root and leaf samples were taken 1 h and 21 days after Na treatment, and RNA-Seq was used to analyze transcript differences in roots and leaves of the Na-treated and control plants. A large number of differentially expressed genes (DEGs) were identified in the roots and leaves of plants grown under salt stress. Several key pathways related to salt tolerance were identified through KEGG analysis. Combined with physiological data and expression analysis, it appeared that cyclic nucleotide gated channels (CNGCs) were implicated in Na uptake and Na+/H+ exchangers (NHXs) were responsible for the extrusion and sequestration of Na, which facilitated a balance between Na+ and K+ in S. portulacastrum under salt stress. Soluble sugar and proline were identified as important osmoprotectant in salt-stressed S. portulacastrum plants. Glutathione metabolism played an important role in scavenging reactive oxygen species. Results from this study show that S. portulacastrum as a halophytic species possesses a suite of mechanisms for accumulating and tolerating a high level of Na; thus, it could be a valuable plant species used for phytoremediation of saline soils.
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Affiliation(s)
- Dan Wang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Nan Yang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Chaoyue Zhang
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Weihong He
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Guiping Ye
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
| | - Jianjun Chen
- Department of Environmental Horticulture, Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, United States
| | - Xiangying Wei
- Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, China
- Fuzhou Institute of Oceanography, Fuzhou, China
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Zahra N, Al Hinai MS, Hafeez MB, Rehman A, Wahid A, Siddique KHM, Farooq M. Regulation of photosynthesis under salt stress and associated tolerance mechanisms. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 178:55-69. [PMID: 35276596 DOI: 10.1016/j.plaphy.2022.03.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/12/2022] [Accepted: 03/03/2022] [Indexed: 05/24/2023]
Abstract
Photosynthesis is crucial for the survival of all living biota, playing a key role in plant productivity by generating the carbon skeleton that is the primary component of all biomolecules. Salinity stress is a major threat to agricultural productivity and sustainability as it can cause irreversible damage to photosynthetic apparatus at any developmental stage. However, the capacity of plants to become photosynthetically active under adverse saline conditions remains largely untapped. This study addresses this discrepancy by exploring the current knowledge on the impact of salinity on chloroplast operation, metabolism, chloroplast ultrastructure, and leaf anatomy, and highlights the dire consequences for photosynthetic machinery and stomatal conductance. We also discuss enhancing photosynthetic capacity by modifying and redistributing electron transport between photosystems and improving photosystem stability using genetic approaches, beneficial microbial inoculations, and root architecture changes to improve salt stress tolerance under field conditions. Understanding chloroplast operations and molecular engineering of photosynthetic genes under salinity stress will pave the way for developing salt-tolerant germplasm to ensure future sustainability by rehabilitating saline areas.
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Affiliation(s)
- Noreen Zahra
- Department of Botany, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Marwa Sulaiman Al Hinai
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman
| | | | - Abdul Rehman
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan
| | - Abdul Wahid
- Department of Botany, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia.
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Ding G, Yang Q, Ruan X, Si T, Yuan B, Zheng W, Xie Q, Souleymane OA, Wang X. Proteomics analysis of the effects for different salt ions in leaves of true halophyte Sesuvium portulacastrum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 170:234-248. [PMID: 34920320 DOI: 10.1016/j.plaphy.2021.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 05/25/2023]
Abstract
Sesuvium portulacastrum is a true halophyte and shows an optimal development under moderate salinity with large amounts of salt ions in its leaves. However, the specific proteins in response to salt ions are remained unknown. In this study, comparative physiological and proteomic analyses of different leaves subject to NaCl, KCl, NaNO3 and KNO3 were performed. Chlorophyll content was decreased under the above four kinds of salt treatments. Starch and soluble sugar contents changed differently under different salt treatments. A total of 53 differentially accumulated proteins (DAPs) were identified by mass spectrometry. Among them, 13, 25, 26 and 25 DAPs were identified after exposure to KCl, NaCl, KNO3, and NaNO3, respectively. These DAPs belong to 47 unique genes, and 37 of them are involved in protein-protein interactions. These DAPs displayed different expression patterns after treating with different salt ions. Functional annotation revealed they are mainly involved in photosynthesis, carbohydrate and energy metabolism, lipid metabolism, and biosynthesis of secondary metabolites. Genes and proteins showed different expression profiles under different salt treatments. Enzyme activity analysis indicated P-ATPase was induced by KCl, NaCl and NaNO3, V-ATPase was induced by KCl and NaCl, whereas V-PPase activity was significantly increased after application of KNO3, but sharply inhibited by NaCl. These results might deepen our understanding of responsive mechanisms in the leaves of S. portulacastrum upon different salt ions.
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Affiliation(s)
- Guohua Ding
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Qian Yang
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, China
| | - Xueyu Ruan
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Tingting Si
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Boxuan Yuan
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Wenwei Zheng
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Quanliang Xie
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi, 832003, China
| | - Ousmane Ahmat Souleymane
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China
| | - Xuchu Wang
- College of Life Sciences, Ministry of Education Key Laboratory for Ecology of Tropical Islands, Hainan Normal University, Haikou, Hainan, 571158, China.
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Derbali W, Manaa A, Spengler B, Goussi R, Abideen Z, Ghezellou P, Abdelly C, Forreiter C, Koyro HW. Comparative proteomic approach to study the salinity effect on the growth of two contrasting quinoa genotypes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 163:215-229. [PMID: 33862501 DOI: 10.1016/j.plaphy.2021.03.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/28/2021] [Indexed: 05/27/2023]
Abstract
The aim of this study was to investigate the effect of NaCl salinity (0, 100 and 300 mM) on the individual response of the quinoa varieties Kcoito (Altiplano Ecotype) and UDEC-5 (Sea-level Ecotype) with physiological and proteomic approaches. Leaf protein profile was performed using two dimensional gel electrophoresis (2-DE). UDEC-5 showed an enhanced capacity to withstand salinity stress compared to Kcoito. In response to salinity, we detected overall the following differences between both genotypes: Toxicity symptoms, plant growth performance, photosynthesis performance and intensity of ROS-defense. We found a mirroring of these differences in the proteome of each genotype. Among the 700 protein spots reproducibly detected, 24 exhibited significant abundance variations between samples. These proteins were involved in energy and carbon metabolism, photosynthesis, ROS scavenging and detoxification, stress defense and chaperone functions, enzyme activation and ATPases. A specific set of proteins predominantly involved in photosynthesis and ROS scavenging showed significantly higher abundance under high salinity (300 mM NaCl). The adjustment was accompanied by a stimulation of various metabolic pathways to balance the supplementary demand for energy or intermediates. However, the more salt-resistant genotype UDEC-5 presented a beneficial and significantly higher expression of nearly all stress-related altered enzymes than Kcoito.
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Affiliation(s)
- Walid Derbali
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, B.P. 901, Hammam-Lif, 2050, Tunisia; Faculté des Sciences de Tunis, Université Tunis El Manar, 2092. Tunisia; Institute for Plant Ecology, Justus-Liebig-University of Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Arafet Manaa
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, B.P. 901, Hammam-Lif, 2050, Tunisia.
| | - Bernhard Spengler
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University of Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Rahma Goussi
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, B.P. 901, Hammam-Lif, 2050, Tunisia; Faculté des Sciences de Tunis, Université Tunis El Manar, 2092. Tunisia
| | - Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte, University of Karachi, Karachi, Pakistan
| | - Parviz Ghezellou
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University of Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Chedly Abdelly
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj Cedria, B.P. 901, Hammam-Lif, 2050, Tunisia
| | - Christoph Forreiter
- Institut für Biologie, University of Siegen, Naturwissenschaftlich-Technische Fakultät, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Hans-Werner Koyro
- Institute for Plant Ecology, Justus-Liebig-University of Giessen, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
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Xu J, Jia H, Ma H, Tian C, Zhu C. Salinity relief aniline induced oxidative stress in Suaeda salsa: Activities of antioxidative enzyme and EPR measurements. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 205:111293. [PMID: 32949840 DOI: 10.1016/j.ecoenv.2020.111293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
Wastewater from printing and dyeing processes often contains aniline and high salinity, which are hazardous to aquatic species. Glycophytic plants cannot survive under high-salinity conditions, whereas halophytes grow well in such an environment. In this study, we investigated the influence of NaCl on the antioxidant level in Suaeda salsa affected by aniline stress. The seedlings showed various growth toxicity effects under different concentrations of aniline. The results showed that the effect of the aniline was more severe for the root growth compared to that for the shoot growth. Aniline exposure significantly increased the total free radicals and ·OH radicals in the plants. Suaeda salsa exposure to aniline caused oxidative stress by altering the superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activity, which resulted in the overproduction of H2O2 and the inducement of lipid peroxidation. Analysis revealed that the malondialdehyde (MDA) content was enhanced after aniline exposure and that the chlorophyll content was significantly decreased. The results showed that aniline induced the production of free radicals and reactive oxygen species (ROS), and changed the antioxidant defense system. This ultimately resulted in oxidative damage in S. salsa; however, it was found that moderate salinity could mitigate the effects. In conclusion, salinity may alleviate the growth inhibition caused by aniline by regulating the antioxidant capacity of S. salsa.
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Affiliation(s)
- Jie Xu
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China; College of Resources and Environment Science, Xinjiang University, Urumqi, 830046, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Honglei Jia
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Hongrui Ma
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Changyan Tian
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
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