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Jia J, Zhao X, Jia P, Zhang X, Li D, Liu Y, Huang L. Ecophysiological responses of Phragmites australis populations to a tidal flat gradient in the Yangtze River Estuary, China. FRONTIERS IN PLANT SCIENCE 2024; 15:1326345. [PMID: 38756962 PMCID: PMC11097105 DOI: 10.3389/fpls.2024.1326345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 04/08/2024] [Indexed: 05/18/2024]
Abstract
Phragmites australis is a prevalent species in the Chongming Dongtan wetland and is capable of thriving in various tidal flat environments, including high salinity habitats. P. australis population displays inconsistent ecological performances, highlighting the need to uncover their survival strategies and mechanisms in tidal flats with diverse soil salinities. Upon comparing functional traits of P. australis at multiple tidal flats (low, middle, and high) and their responses to soil physicochemical properties, this study aimed to clarify the salt-tolerant strategy of P. australis and the corresponding mechanisms. These results showed that leaf characteristics, such as specific leaf area and leaf dry matter content, demonstrated more robust stability to soil salinity than shoot height and dry weight. Furthermore, as salt stress intensified, the activities of superoxide dismutase (SOD), catalase (CAT) and peroxisome (POD) in P. australis leaves at low tidal flat exhibited an increased upward trend compared to those at other tidal flats. The molecular mechanism of salt tolerance in Phragmites australis across various habitats was investigated using transcriptome sequencing. Weighted correlation network analysis (WGCNA) combined with differentially expressed genes (DEGs) screened out 3 modules closely related to high salt tolerance and identified 105 core genes crucial for high salt tolerance. Further research was carried out on the few degraded populations at low tidal flat, and 25 core genes were identified by combining WGCNA and DEGs. A decrease in the activity of ferroptosis marker gonyautoxin-4 and an increase in the content of Fe3+ in the degenerated group were observed, indicating that ferroptosis might participate in degradation. Furthermore, correlation analysis indicated a possible regulatory network between salt tolerance and ferroptosis. In short, this study provided new insights into the salt tolerance mechanism of P. australis population along tidal flats.
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Affiliation(s)
- Jing Jia
- East China Normal University, Shanghai, China
| | | | - Peng Jia
- East China Normal University, Shanghai, China
| | - Xin Zhang
- GeneMind Biosciences, Shenzhen, China
| | - Dezhi Li
- East China Normal University, Shanghai, China
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Sheng W, Liu L, Wu Y, Yin M, Yu Q, Guo X, Song H, Guo W. Exploring salt tolerance and indicator traits across four temperate lineages of the common wetland plant, Phragmites australis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169100. [PMID: 38086483 DOI: 10.1016/j.scitotenv.2023.169100] [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: 07/24/2023] [Revised: 11/11/2023] [Accepted: 12/02/2023] [Indexed: 01/18/2024]
Abstract
Common reed (Phragmites australis) is a widely utilized plant for wetland restoration and construction, facing challenges posed by high salinity as a stressor. Among the diverse P. australis lineages, functional traits variation provides a valuable genetic resource for identifying salt-tolerant individuals. However, previous investigations on P. australis salt tolerance have been restricted to regional scales, hindering the identification of key functional traits associated with salt tolerance in natural habitats. To address this gap, we conducted a greenhouse experiment to assess and compare the salt tolerance of four major temperate P. australis lineages worldwide. We utilized the maximum quantum yield of photosystem II (Fv/Fm) as a health indicator, while final biomass and wilt status served as indicators of salt tolerance across lineages. Our findings revealed significant differentiation in plant functional traits among different lineages, but no significant effect of interaction between salinity and lineage on most traits. Correlation analyses between salt-tolerance indicators and functional traits in the control group indicated that biomass, leaf width, and relative leaf water content are potential predictors of salt tolerance. However, ecological strategies, physiological traits, and latitudinal origin did not exhibit significant correlations with salt tolerance. Our study provides valuable indicator traits for effectively screening salinity-tolerant genotypes of P. australis in field settings, and holds significant potential for enhancing wetland construction and biomass production in marginal lands.
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Affiliation(s)
- Wenyi Sheng
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China
| | - Lele Liu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China.
| | - Yiming Wu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China
| | - Meiqi Yin
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China
| | - Qing Yu
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China; Shandong Land Development Group Co., Ltd, 2688 Aotixi Road, Jinan 250014, China
| | - Xiao Guo
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, 700 Changcheng Road, Qingdao 266109, China
| | - Huijia Song
- National Natural History Museum of China, 126 Tianqiao South Street, Beijing 100050, China
| | - Weihua Guo
- Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao 266237, China.
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Wala M, Kołodziejek J, Mazur J, Patykowski J. Experimental investigation of the responses of meadow buttercup (Ranunculus acris L.) to sodic salinity and its implications for habitat monitoring. Sci Rep 2023; 13:15611. [PMID: 37730898 PMCID: PMC10511526 DOI: 10.1038/s41598-023-42738-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023] Open
Abstract
Ranunculus acris L. is a native species widely distributed throughout Europe and is invasive in nonnative areas, causing substantial economic losses in pasture productivity. The present study examined the effects of sodic salinity on the growth and functioning of this species. Salinity stresses the germination process and seedling growth, indicating that the studied species experience serious limitations at 60-90 mmol dm-3 NaCl and cannot establish in habitats where salinity is equal to or greater than 150 mmol dm-3 NaCl. R. acris is tuned to subsaline habitats characteristic of temperate meadows, as its growth and functioning were the best when the plants were treated with 30 mmol dm-3 NaCl. Increasing salinity (60 and 90 mmol dm-3 NaCl) hampered growth, leaf morphology and photosynthesis but not mineral nutrition, as Na accumulation seemed to be the most outlined effect of NaCl application. Changes in leaf morphological characteristics coordinated well with Na content in those organs, which indicates that leaf appearance can be easily catchable sign of progressing salinity. Ultimately, progressing salinity reduces the competitiveness of the studied species, shifting its strategy to ruderal behavior, but under subsaline conditions, the strategy of this species seems to be most balanced.
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Affiliation(s)
- Mateusz Wala
- Department of Geobotany and Plant Ecology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237, Łódź, Poland.
| | - Jeremi Kołodziejek
- Department of Geobotany and Plant Ecology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237, Łódź, Poland
| | - Janusz Mazur
- Laboratory of Computer and Analytical Techniques, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237, Łódź, Poland
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Liu Y, Li J, Liu Y, He L, Yang S, Gong H, Xu R, Yao X, Ge G. Interactive Effects of Flooding Duration and Sediment Texture on the Growth and Adaptation of Three Plant Species in the Poyang Lake Wetland. BIOLOGY 2023; 12:944. [PMID: 37508375 PMCID: PMC10376433 DOI: 10.3390/biology12070944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023]
Abstract
Flooding duration and sediment texture play vital roles in the growth and adaptation of wetland plants. However, there is a lack of research on the interactive effects of flooding duration and sediments on wetland plants. A two-factor experiment with flooding duration and sediment texture was designed in the study, involving three plant species commonly found in the Poyang Lake wetland (i.e., Carex cinerascens, Phalaris arundinacea, and Polygonum criopolitanum). Our findings were as follows: (i) Sediments play a crucial role in the growth and adaptation of hygrophilous plants, but they exhibited a weaker effect than flooding. (ii) Sediment texture mediates flooding to affect the stressing responses of wetland plant functional traits, including the leaf chlorophyll content, the plant height, and the number of leaves and ramets. (iii) Sediment texture forms interactive effects with flooding duration and directly influences hygrophilous plants. The results of this study help provide theoretical insights from a more scientific perspective for the prediction of hygrophilous plant dynamics and to facilitate the formulation of wetland management.
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Affiliation(s)
- Ying Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education, Nanchang University, Nanchang 330031, China
- Institute of Life Science, Nanchang University, Nanchang 330031, China
| | - Jie Li
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Yizhen Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education, Nanchang University, Nanchang 330031, China
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Liang He
- Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education, Nanchang University, Nanchang 330031, China
| | - Shanshan Yang
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Huiying Gong
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Ruixin Xu
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Xingzi Yao
- School of Life Science, Nanchang University, Nanchang 330031, China
| | - Gang Ge
- Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education, Nanchang University, Nanchang 330031, China
- School of Life Science, Nanchang University, Nanchang 330031, China
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Ievinsh G. Halophytic Clonal Plant Species: Important Functional Aspects for Existence in Heterogeneous Saline Habitats. PLANTS (BASEL, SWITZERLAND) 2023; 12:1728. [PMID: 37111952 PMCID: PMC10144567 DOI: 10.3390/plants12081728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
Plant modularity-related traits are important ecological determinants of vegetation composition, dynamics, and resilience. While simple changes in plant biomass resulting from salt treatments are usually considered a sufficient indicator for resistance vs. susceptibility to salinity, plants with a clonal growth pattern show complex responses to changes in environmental conditions. Due to physiological integration, clonal plants often have adaptive advantages in highly heterogeneous or disturbed habitats. Although halophytes native to various heterogeneous habitats have been extensively studied, no special attention has been paid to the peculiarities of salt tolerance mechanisms of clonal halophytes. Therefore, the aim of the present review is to identify probable and possible halophytic plant species belonging to different types of clonal growth and to analyze available scientific information on responses to salinity in these species. Examples, including halophytes with different types of clonal growth, will be analyzed, such as based on differences in the degree of physiological integration, ramet persistence, rate of clonal expansion, salinity-induced clonality, etc.
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Affiliation(s)
- Gederts Ievinsh
- Department of Plant Physiology, Faculty of Biology, University of Latvia, 1 Jelgavas Str., LV-1004 Rīga, Latvia
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