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Manojkumar S, Thandeeswaran M, Thangavel SK, Arjunan A, Muthuselvam M, Kalaiarasi G, Gnanajothi K. Phytochemical Screening, In Silico Molecular Docking, ADME Properties, and In Vitro Antioxidant, Anticancer, and Antidiabetic Activity of Marine Halophyte Suaeda maritima (L.) Dumort. ACS OMEGA 2024; 9:11200-11216. [PMID: 38496978 PMCID: PMC10938337 DOI: 10.1021/acsomega.3c05591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 03/19/2024]
Abstract
Medicinally valuable components derived from natural resources are highly desirable as prospective alternatives to synthetic drugs to treat fatal diseases, such as cancer and diabetes mellitus. Suaeda maritima (L.) Dumort (Amaranthaceae) (S. maritima) is a halophyte plant that can thrive in saline environments and possesses excellent medicinal properties. Hence, for the present investigation, S. maritima has been chosen, and its phytochemical constituents have been extracted utilizing various solvents, including hexane, acetone, and methanol, and identified by GC-MS, LC-MS, and HPLC analyses. The antioxidant activity of the compounds using DPPH, ABTS, and reducing power assays demonstrated that all three extracts of S. maritima possessed significant radical scavenging activity comparable to standard ascorbic acid with lower IC50 values (69.20-95.58 μg/mL). In addition, the evaluation of antidiabetic activity by α-amylase inhibition and α-glucosidase inhibition methods revealed that the acetone extract of S. maritima (SMAE) displayed equipotent activity of standard acarbose with an IC50 of 32.6 μg/mL. Advantageously, SMAE also exhibited better inhibition activity against the growth of lung cancer cells with an IC50 of 78.19. μg/mL and less toxicity on the noncancerous HUVEC cells with a high IC50 of 300 μg/mL. In addition, the cancer cell death mechanism via the apoptotic pathway induced by SMAE was confirmed by DAPI staining and ROS analysis. The analysis of ADME properties, including absorption, distribution, metabolism, and excretion, witnessed that the physicochemical and druglikeness factors were best catered by stigmasterol, γ-sitosterol, and vitamin E. Further, the key phytochemicals identified from SMAE were docked with CtBP1 and SOX2 bound to importin-α target proteins associated with carcinogenic pathways using Schrodinger software. The results showed that the phytochemicals, scilicet, stigmasterol, γ-sitosterol, octadecadienoic acid, and vitamin E, showed a good binding affinity with Glide scores in the range -2.845-4.018 kcal/mol. Overall, the findings support that the least investigated traditional edible medicinal mangrove-related S. maritima is high in pharmacologically active constituents and might be one of the finest sources of naturally derived molecules for drug development and delivery systems.
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Affiliation(s)
- Sampath Manojkumar
- Translational
Plant Research Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Murugesan Thandeeswaran
- Metabolomics/Proteomics
Facility, Bharathiar Cancer Theranostics Research Centre, RUSA 2.0, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | | | - Annavi Arjunan
- Department
of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Manickam Muthuselvam
- Department
of Biotechnology, School of Biotechnology and Genetic Engineering, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - Giriraj Kalaiarasi
- Centre
for Material Chemistry, Department of Chemistry, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore 641021, Tamil Nadu, India
| | - Kapildev Gnanajothi
- Translational
Plant Research Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
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Rahman, Ceanturi A, Tuahatu JW, Lokollo FF, Supusepa J, Hulopi M, Permatahati YI, Lewerissa YA, Wardiatno Y. Mangrove ecosystems in Southeast Asia region: Mangrove extent, blue carbon potential and CO 2 emissions in 1996-2020. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170052. [PMID: 38218471 DOI: 10.1016/j.scitotenv.2024.170052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/19/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
This study aimed to analyze mangrove extent (ME), carbon stock, blue carbon potential, and CO2 emission from 1996 to 2020 in Southeast Asia region. The data was obtained through the Global Mangrove Alliance (GMA) on the platform www.globalmangrovewatch.org v.3. Furthermore, ME was analyzed descriptively and the triggers for mangrove land changes in each country were investigated through a relevant literature review. The spatial analysis was conducted for blue carbon potential, while CO2 emission was derived by multiplying net change by emission factor (EF) of mangrove ecosystem. The results showed that the total ME in Southeast Asia was 5.07 million hectares (Mha) in 1996, decreasing to 4.82 Mha by 2020 due to various land uses, primarily shrimp farming. The total carbon stock potential was 2367.68 MtC, while a blue carbon potential was 8682.32 MtCO2-e, consisting of 1304.33 MtCO2-e and 7377.99 MtCO2-e from above-ground and soil carbon. Indonesia contributed 5939.57 MtCO2-e to blue carbon potential, while Singapore and Timor-Leste had the lowest contributions of 1.05 MtCO2-e and 1.37 MtCO2-e, respectively. Carbon stock potential (AGC and SOC) in Southeast Asia was influenced by ME conditions. The relationship between ME and AGC was found to be exponential (AGC = 0.0307e0.8938x; R2 = 0.9331; rME-AGC = 0.9964, P < 0.01). Similarly, ME and SOC, or AGC and SOC showed a relationship where SOC = 0.2e0.8829x (R2 = 0.937, rME-SOC = 0.9965 and rAGC-SOC = 0.9989, P < 0.01). The average CO2-e emission in Southeast Asia reached 17.0760 MtCO2-e yr-1 and the largest were attributed to Indonesia at 16.3817 MtCO2-e yr-1. Meanwhile, Brunei and Timor Leste did not show CO2-e emission as mangrove in these countries absorbed more CO2 from the atmosphere at -0.034 MtCO2-e yr-1 and -0.0002 MtCO2-e yr-1, respectively.
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Affiliation(s)
- Rahman
- Department of Marine Science, Pattimura University, Ambon, Indonesia.
| | - Ardan Ceanturi
- Peatland and Mangrove Restoration Agency of Republic of Indonesia, Indonesia
| | - Juliana W Tuahatu
- Department of Marine Science, Pattimura University, Ambon, Indonesia
| | - Frijona F Lokollo
- Department of Marine Science, Pattimura University, Ambon, Indonesia
| | - Junita Supusepa
- Department of Marine Science, Pattimura University, Ambon, Indonesia
| | - Mahriyana Hulopi
- Department of Aquatic Resources Management, Pattimura University, Indonesia
| | - Yustika Intan Permatahati
- Department of Aquatic Resources Management, Halu Oleo University, Indonesia; Mangrove Research and Development Centre Halu Oleo University, Indonesia
| | - Yona A Lewerissa
- Department of Aquatic Resources Management, Pattimura University, Indonesia
| | - Yusli Wardiatno
- Department of Aquatic Resources Management, IPB University, Indonesia
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Zeng J, Ai B, Jian Z, Zhao J, Sun S. Simulation of mangrove suitable habitat in the Guangdong-Hong Kong-Macao Area under the background of climate change. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119678. [PMID: 38043307 DOI: 10.1016/j.jenvman.2023.119678] [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: 02/27/2023] [Revised: 09/24/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
Climate change has resulted in great influence on the geographical distribution of species. Mangrove forests are one of the most precious ecosystems on the planet, yet they are being threatened by the habitat destruction and degradation under the situation of global warming. Seeking suitable areas for planting mangroves to tackle climate change has been gradually popular in ecological restoration. In this study, we applied the Maximum Entropy algorithm to assess the contribution of environmental factors on mangrove distribution, simulated mangrove suitable habitat for present and future (scenario of SSP245-2070s), and used kernel density analysis for identifying priority of mangrove reserve construction. Results indicate that mean diurnal range and elevation made the highest contribution on mangrove distribution. At present, the mangrove habitat suitability along the western coast of the Guangdong-Hong Kong-Macao Area (GHMA) was the highest while that along the eastern coast was the lowest. By 2070s, mangrove suitable areas would show a decreasing trend under SSP245 scenario. High suitable areas (HSAs) would change fastest and shift to northeast in the same direction as dominant environmental factors. For further mangrove restoration, it is advisable to select sites with high suitability density in the future but low reclamation density at present as prior mangrove reserves, and these sites distribute along the northeastern and northwestern coast of Zhanjiang, Yangjiang and Jiangmen, the Pearl River Estuary and Honghai Bay of Shanwei. Meanwhile, regions with lower suitability density but higher reclamation density could be listed as secondary mangrove reserves.
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Affiliation(s)
- Jiali Zeng
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, Guangdong, PR China
| | - Bin Ai
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, Guangdong, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, Guangdong, PR China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519000, Guangdong, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou, 510275, Guangdong, PR China.
| | - Zhuokai Jian
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, Guangdong, PR China
| | - Jun Zhao
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, Guangdong, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, Guangdong, PR China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519000, Guangdong, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou, 510275, Guangdong, PR China
| | - Shaojie Sun
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, Guangdong, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, Guangdong, PR China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519000, Guangdong, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou, 510275, Guangdong, PR China
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Baubekova A, Ahrari A, Etemadi H, Klöve B, Haghighi AT. Environmental flow assessment for intermittent rivers supporting the most poleward mangroves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:167981. [PMID: 37866602 DOI: 10.1016/j.scitotenv.2023.167981] [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: 06/23/2023] [Revised: 09/20/2023] [Accepted: 10/19/2023] [Indexed: 10/24/2023]
Abstract
The most vulnerable and dynamic ecosystems in terms of response to climate change and fluctuations in hydrological conditions are mangroves, particularly those located on the edge of their latitudinal range limits. The four primary Iranian mangrove forest sites: Nayband, Qeshm, Gabrik, and Govatr, located in the northern part of the Persian Gulf and the Gulf of Oman already exist near the limit of their tolerance to extreme temperature, precipitation, and salinity. Due to extreme climate conditions at these locations, the mangrove trees are usually smaller and less dense as compared with mangroves closer to the equator complicating their monitoring and mapping efforts. Despite the growing attention to the ecological benefits of mangrove forests and their importance in climate change mitigation, there are still a few studies on these marginal mangroves. Therefore, we investigated whether the variation in mangrove ecosystem health is related to the changes in physical parameters and differs between estuarine and sea-side locations. We developed a comprehensive database on NDVI values, associated rainfall, temperature, and river flow based on in-situ and remote sensing measurements. By understanding the normal hydrologic patterns that control the distribution and growth of mangroves in arid and semi-arid regions, we are questioning the need for environmental flow allocation to restore mangrove ecosystem health. This brings us to the second gap in the literature and the need for further studies on Environmental Flow assessment for intermittent and ephemeral rivers. Alike other mangroves studied, forests showed greenness seasonality, positively correlated with rainfall, and negatively correlated with temperature. As there was no clear difference between estuarine and marine sites, freshwater influence in the form of river flow, unlike temperature, cannot be considered a major limiting factor. Nevertheless, during prolonged droughts mangroves could benefit from the recommended allocation of Environmental Flow during the cold period (November-March).
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Affiliation(s)
- Aziza Baubekova
- Water, Energy, and Environmental Engineering Research Unit, University of Oulu, Finland.
| | - Amirhossein Ahrari
- Water, Energy, and Environmental Engineering Research Unit, University of Oulu, Finland
| | - Hana Etemadi
- Environmental Science, Persian Gulf Research Institute, Persian Gulf University, Bushehr, Iran
| | - Björn Klöve
- Water, Energy, and Environmental Engineering Research Unit, University of Oulu, Finland
| | - Ali Torabi Haghighi
- Water, Energy, and Environmental Engineering Research Unit, University of Oulu, Finland
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Chang LF, Fei J, Wang YS, Ma XY, Zhao Y, Cheng H. Comparative Analysis of Cd Uptake and Tolerance in Two Mangrove Species ( Avicennia marina and Rhizophora stylosa) with Distinct Apoplast Barriers. PLANTS (BASEL, SWITZERLAND) 2023; 12:3786. [PMID: 38005683 PMCID: PMC10674663 DOI: 10.3390/plants12223786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 10/29/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023]
Abstract
Mangrove plants demonstrate an impressive ability to tolerate environmental pollutants, but excessive levels of cadmium (Cd) can impede their growth. Few studies have focused on the effects of apoplast barriers on heavy metal tolerance in mangrove plants. To investigate the uptake and tolerance of Cd in mangrove plants, two distinct mangrove species, Avicennia marina and Rhizophora stylosa, are characterized by unique apoplast barriers. The results showed that both mangrove plants exhibited the highest concentration of Cd2+ in roots, followed by stems and leaves. The Cd2+ concentrations in all organs of R. stylosa consistently exhibited lower levels than those of A. marina. In addition, R. stylosa displayed a reduced concentration of apparent PTS and a smaller percentage of bypass flow when compared to A. marina. The root anatomical characteristics indicated that Cd treatment significantly enhanced endodermal suberization in both A. marina and R. stylosa roots, and R. stylosa exhibited a higher degree of suberization. The transcriptomic analysis of R. stylosa and A. marina roots under Cd stress revealed 23 candidate genes involved in suberin biosynthesis and 8 candidate genes associated with suberin regulation. This study has confirmed that suberized apoplastic barriers play a crucial role in preventing Cd from entering mangrove roots.
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Affiliation(s)
- Li-Fang Chang
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
- College of Life Science and Agroforestry, Qiqihaer University, Qiqihaer 161006, China
| | - Jiao Fei
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
| | - You-Shao Wang
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
| | - Xiao-Yu Ma
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
- College of Life Science and Agroforestry, Qiqihaer University, Qiqihaer 161006, China
| | - Yan Zhao
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
- College of Life Science and Agroforestry, Qiqihaer University, Qiqihaer 161006, China
| | - Hao Cheng
- South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (L.-F.C.); (J.F.); (Y.-S.W.); (X.-Y.M.)
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Friess DA. Global mangrove mapping has gone mainstream. Sci Bull (Beijing) 2023; 68:2145-2147. [PMID: 37612220 DOI: 10.1016/j.scib.2023.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Daniel A Friess
- Department of Earth and Environmental Sciences, Tulane University, New Orleans LA 70118, USA.
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