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Yang X, Ni Y, Li Z, Yue K, Wang J, Li Z, Yang X, Song Z. Silicon in paddy fields: Benefits for rice production and the potential of rice phytoliths for biogeochemical carbon sequestration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172497. [PMID: 38636875 DOI: 10.1016/j.scitotenv.2024.172497] [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: 02/12/2024] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/20/2024]
Abstract
Silicon (Si) biogeochemical cycling is beneficial for crop productivity and carbon (C) sequestration in agricultural ecosystem, thus offering a nonnegligible role in alleviating global warming and food crisis. Compared with other crops, rice plants have a greater quantity of phytolith production, because they are able to take up a lot of Si. However, it remains unclear on Si supply capacity of paddy soils across the world, general rice yield-increasing effect after Si fertilizer addition, and factors affecting phytolith production and potential of phytolith C sequestration in paddy fields. This study used a meta-analysis of >3500 data from 87 studies to investigate Si supply capacity of global paddy soils and elaborate the benefits of Si regarding rice productivity and phytolith C sequestration in paddy fields. Analytical results showed that the Si supply capacity of paddy soils was insufficient in the major rice producing countries/regions. Dealing with this predicament, Si fertilization was an effective strategy to supply plant-available Si to improve rice productivity. Our meta-analysis results further revealed that Si fertilization led to the average increasing rate of 36 % and 39 % in rice yield and biomass, which could reach up to 52 % and 46 % with the increasing doses of Si fertilizer, respectively. Especially, this strategy also improved the potential of phytolith C sequestration through the increased phytolith content and rice biomass, despite that this potential might have a decline in old paddy soils (≥ 7000 year) compared to in young paddy soils (≤ 1000 year) due to the slow migration and dissolution of phytoliths at millennial scale. Our findings thus indicate that a deep investigation on the benefits of Si in agroecosystem will further improve our understanding on regulating crop production and the potential of biogeochemical C sequestration within phytoliths in global cropland.
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Affiliation(s)
- Xiaomin Yang
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, China
| | - Yilun Ni
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, China
| | - Zimin Li
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710061, China; National Observation and Research Station of Earth Critical Zone on the Loess Plateau, Xi'an, Shaanxi 710061, China.
| | - Kai Yue
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Jingxu Wang
- Institute of Geography, Henan, Academy of Sciences, Zhengzhou 450052, China
| | - Zhijie Li
- School of Computing, Clemson University, Clemson, SC 29634, USA
| | - Xing Yang
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, School of Ecology and Environment, Hainan University, Renmin Road 58, Haikou 570228, China
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China.
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Anjum M, Prakash NB. Production of phytolith and PhytOC and distribution of extractable Si Pools in aerobic rice as influenced by different Si sources. FRONTIERS IN PLANT SCIENCE 2023; 14:1146416. [PMID: 37692442 PMCID: PMC10486906 DOI: 10.3389/fpls.2023.1146416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023]
Abstract
Phytoliths are composed of 66 to 91% SiO2 and 1 to 6% organic carbon (C) known as phytolith occluded carbon (PhytOC). PhytOC is critical for long-term C storage in the agroecosystem. A field experiment was carried out to investigate the effect of three different sources of exogenous Si, i.e., diatomaceous earth (DE), silicic acid (SA) and rice husk biochar (RHB) on 1) plant phytolith, C content in phytolith and PhytOC content in different rice organs; 2) relationship between plant phytolith, C content in phytolith, PhytOC content, and soil properties (soil physicochemical properties and readily soluble silicon pools). Different Si sources produced significantly higher phytolith, PhytOC content, and readily soluble Si pools (CCSi, AASi, and ASi) than the control (RDF), with treatment receiving 4 t RHB ha-1 outperforming the other treatments. Phytolith and PhytOC production were found to be significantly correlated to soil organic carbon (OC), available nitrogen (N) and potassium (K), 0.01 M CaCl2 extractable Si (CCSi) and amorphous Si (ASi) content in the soil. Redundancy analysis showed that treatments receiving 4 t RHB ha-1 have a stronger relationship with the CCSi and ASi which majorly contributed to the higher phytolith and PhytOC production. Thus, practices such as Si fertilizers and RHB application have a high potential for phytolith production and PhytOC sequestration, a critical mechanism of the global biogeochemical C sink.
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Affiliation(s)
- Mohsina Anjum
- Plant Nutrition Laboratory, Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Bangalore, India
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Li R, Chen X, Wen M, Vachula RS, Tan S, Dong H, Zhou L, Gu Z, Xu M. Phytolith-occluded carbon in leaves of Dendrocalamus Ronganensis influenced by drought during growing season. PHYSIOLOGIA PLANTARUM 2022; 174:e13748. [PMID: 36281838 DOI: 10.1111/ppl.13748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 06/16/2023]
Abstract
Being an important carbon (C) sink, phytolith-occluded carbon (PhytOC) has been investigated in various soil-plant systems. However, the effects of environmental factors (i.e., drought) on phytoliths, including altered deposition in plant tissues, morphological variation, and amounts of carbon occluded within phytoliths, are less studied. In this study, we analyzed the monthly variations of phytolith production and PhytOC in the leaves of Dendrocalamus ronganensis grown on a karst mountain in southwestern China during a drought year. This study thus sought to understand the effects of drought on phytolith formation, morphological variations and carbon sequestration within phytoliths in plants. Our results showed that the phytolith assemblages and PhytOC between new and old leaves differed significantly and varied with plant growth stages. The average PhytOC values of old leaves and tip leaves were 3.2% and 2.2%, respectively. In particular, both PhytOC and proportions of ELONGATE, BULLIFORM FLABELLATE, and STOMA phytoliths in tip leaves significantly decreased from September to January the following year because of drought effects. This study suggests that PhytOC in plants varies between phytolith morphotypes and is significantly affected by plant growth stage and hydrologic conditions. This indicates that we can improve the efficiency of phytolith carbon sequestration in plants by improving the soil water conditions required for plant growth.
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Affiliation(s)
- Rencheng Li
- College of Earth Science, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin, China
| | - Xiaofang Chen
- College of Earth Science, Guilin University of Technology, Guilin, China
| | - Mengdan Wen
- College of Earth Science, Guilin University of Technology, Guilin, China
| | | | - Shuhui Tan
- College of Earth Science, Guilin University of Technology, Guilin, China
| | - Haiyan Dong
- College of Earth Science, Guilin University of Technology, Guilin, China
| | - Lintong Zhou
- College of Earth Science, Guilin University of Technology, Guilin, China
| | - Zhitao Gu
- College of Earth Science, Guilin University of Technology, Guilin, China
| | - Mengtong Xu
- College of Earth Science, Guilin University of Technology, Guilin, China
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Understanding the Relationship between Water Availability and Biosilica Accumulation in Selected C4 Crop Leaves: An Experimental Approach. PLANTS 2022; 11:plants11081019. [PMID: 35448747 PMCID: PMC9031050 DOI: 10.3390/plants11081019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 11/16/2022]
Abstract
Biosilica accumulation in plant tissues is related to the transpiration stream, which in turn depends on water availability. Nevertheless, the debate on whether genetically and environmentally controlled mechanisms of biosilica deposition are directly connected to water availability is still open. We aim at clarifying the system which leads to the deposition of biosilica in Sorghum bicolor, Pennisetum glaucum, and Eleusine coracana, expanding our understanding of the physiological role of silicon in crops well-adapted to arid environments, and simultaneously advancing the research in archaeological and paleoenvironmental studies. We cultivated ten traditional landraces for each crop in lysimeters, simulating irrigated and rain-fed scenarios in arid contexts. The percentage of biosilica accumulated in leaves indicates that both well-watered millet species deposited more biosilica than the water-stressed ones. By contrast, sorghum accumulated more biosilica with respect to the other two species, and biosilica accumulation was independent of the water regime. The water treatment alone did not explain either the variability of the assemblage or the differences in the biosilica accumulation. Hence, we hypothesize that genetics influence the variability substantially. These results demonstrate that biosilica accumulation differs among and within C4 species and that water availability is not the only driver in this process.
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Chaiwong N, Pusadee T, Jamjod S, Prom-u-thai C. Silicon Application Promotes Productivity, Silicon Accumulation and Upregulates Silicon Transporter Gene Expression in Rice. PLANTS 2022; 11:plants11070989. [PMID: 35406969 PMCID: PMC9003229 DOI: 10.3390/plants11070989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/29/2022]
Abstract
Rice has been shown to respond positively to Si fertilizer in terms of growth and productivity. The objective of this study was to evaluate the effect of a series of Si application rates on grain yield, Si concentration, and the expression of the OsLsi6 gene among three Thai rice varieties. The varieties CNT1, PTT1, and KDML105 were grown in a pot experiment under six levels of Si (0, 100, 150, 200, 250, and 300 kg Si/ha). Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si. For Si concentrations in rice plants, rising Si fertilizer application up to 150 kg/ha significantly increased the Si concentration in straw, flag leaf, and husk in all varieties. The Si concentration in all tissues was higher under high Si (300 kg Si/ha). Applying Si fertilizer also increased the expression level of OsLsi6 in both CNT1 and PTT1 varieties. The highest expression level of OsLsi6 was associated with 300 kg Si/ha, being increased by 548% in CNT1 and 326% in PTT1 compared with untreated plants. These results indicate that Si application is an effective way to improve rice yield as well as Si concentration, and that the effect is related to the higher expression of the OsLsi6 gene.
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Affiliation(s)
- Nanthana Chaiwong
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
| | - Tonapha Pusadee
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
| | - Sansanee Jamjod
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chanakan Prom-u-thai
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
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Efficient micropore sizes for carbon dioxide physisorption of pine cone-based carbonaceous materials at different temperatures. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Katz O, Puppe D, Kaczorek D, Prakash NB, Schaller J. Silicon in the Soil-Plant Continuum: Intricate Feedback Mechanisms within Ecosystems. PLANTS (BASEL, SWITZERLAND) 2021; 10:652. [PMID: 33808069 PMCID: PMC8066056 DOI: 10.3390/plants10040652] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/22/2021] [Accepted: 03/26/2021] [Indexed: 11/28/2022]
Abstract
Plants' ability to take up silicon from the soil, accumulate it within their tissues and then reincorporate it into the soil through litter creates an intricate network of feedback mechanisms in ecosystems. Here, we provide a concise review of silicon's roles in soil chemistry and physics and in plant physiology and ecology, focusing on the processes that form these feedback mechanisms. Through this review and analysis, we demonstrate how this feedback network drives ecosystem processes and affects ecosystem functioning. Consequently, we show that Si uptake and accumulation by plants is involved in several ecosystem services like soil appropriation, biomass supply, and carbon sequestration. Considering the demand for food of an increasing global population and the challenges of climate change, a detailed understanding of the underlying processes of these ecosystem services is of prime importance. Silicon and its role in ecosystem functioning and services thus should be the main focus of future research.
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Affiliation(s)
- Ofir Katz
- Dead Sea and Arava Science Center, Mt. Masada, Tamar Regional Council, 86910 Tamar, Israel
- Eilat Campus, Ben-Gurion University of the Negev, Hatmarim Blv, 8855630 Eilat, Israel
| | - Daniel Puppe
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany; (D.P.); (D.K.); (J.S.)
| | - Danuta Kaczorek
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany; (D.P.); (D.K.); (J.S.)
- Department of Soil Environment Sciences, Warsaw University of Life Sciences (SGGW), 02776 Warsaw, Poland
| | - Nagabovanalli B. Prakash
- Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore 560065, India;
| | - Jörg Schaller
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany; (D.P.); (D.K.); (J.S.)
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8
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Lv W, Zhou G, Chen G, Zhou Y, Ge Z, Niu Z, Xu L, Shi Y. Effects of Different Management Practices on the Increase in Phytolith-Occluded Carbon in Moso Bamboo Forests. FRONTIERS IN PLANT SCIENCE 2020; 11:591852. [PMID: 33343597 PMCID: PMC7744606 DOI: 10.3389/fpls.2020.591852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Phytolith-occluded carbon (PhytOC), a promising long-term biogeochemical carbon sequestration mode, plays a crucial role in the global carbon cycle and the regulation of atmospheric CO2. Previous studies mostly focused on the estimation of the content and storage of PhytOC, while it remains unclear about how the management practices affect the PhytOC content and whether it varies with stand age. Moso bamboo (Phyllostachys heterocycla var. pubescens) has a great potential in carbon sequestration and is rich in PhytOC. Here, we selected four management treatments, including control (CK), compound fertilization (CF), silicon (Si) fertilization (SiF) (monosilicic acid can form phytoliths through silicification), and cut to investigate the variation of phytoliths and PhytOC contents in soil, leaves, and litters, and their storage in Moso bamboo forests. In soil, the SiF fertilizer treatment significantly (P < 0.05) increased phytolith content, PhytOC content, and storage compared to CK, while there were no significant differences between the treatments of CF and cut. In leaf, compared with CK, phytolith content of the second-degree leaves under SiF and the first-degree leaves under cut treatment significantly increased, and the three treatments significantly increased PhytOC storage for leaves with three age classes. In litter, the phytolith and PhytOC contents under the three treatments were not significantly different from that under the CK treatment. The PhytOC storage increased by 19.33% under SiF treatment, but significantly decreased by 40.63% under the CF treatment. For the entire Moso bamboo forest ecosystems, PhytOC storage of all the three management treatments increased compared with CK, with the largest increase by 102% under the SiF treatment. The effects of management practices on the accumulation of PhytOC varied with age. Our study implied that Si fertilization has a greater potential to significantly promote the capacity of sequestration of carbon in Moso bamboo forests.
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Affiliation(s)
- Wanjie Lv
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Guomo Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Guangsheng Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Yufeng Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Zhipeng Ge
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Zhengwen Niu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Lin Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
| | - Yongjun Shi
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, Zhejiang A&F University, Hangzhou, China
- Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration of Zhejiang Province, Zhejiang A&F University, Hangzhou, China
- School of Environmental and Resources Science, Zhejiang A&F University, Hangzhou, China
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Caubet M, Cornu S, Saby NPA, Meunier JD. Agriculture increases the bioavailability of silicon, a beneficial element for crop, in temperate soils. Sci Rep 2020; 10:19999. [PMID: 33203877 PMCID: PMC7672074 DOI: 10.1038/s41598-020-77059-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/15/2020] [Indexed: 11/22/2022] Open
Abstract
Crops may take benefits from silicon (Si) uptake in soil. Plant available Si (PAS) can be affected by natural weathering processes or by anthropogenic forces such as agriculture. The soil parameters that control the pool of PAS are still poorly documented, particularly in temperate climates. In this study, we documented PAS in France, based on statistical analysis of Si extracted by CaCl2 (SiCaCl2) and topsoil characteristics from an extensive dataset. We showed that cultivation increased SiCaCl2 for soils developed on sediments, that cover 73% of France. This increase is due to liming for non-carbonated soils on sediments that are slightly acidic to acidic when non-cultivated. The analysis performed on non-cultivated soils confirmed that SiCaCl2 increased with the < 2 µm fraction and pH but only for soils with a < 2 µm fraction ranging from 50 to 325 g kg-1. This increase may be explained by the < 2 µm fraction mineralogy, i.e. nature of the clay minerals and iron oxide content. Finally, we suggest that 4% of French soils used for wheat cultivation could be deficient in SiCaCl2.
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Affiliation(s)
- M Caubet
- INRAE, Infosol, US 1106, Orléans, France
| | - S Cornu
- Aix-Marseille Univ, CNRS, IRD, Coll de France, INRAE, CEREGE, Aix-en-Provence, France.
| | - N P A Saby
- INRAE, Infosol, US 1106, Orléans, France
| | - J-D Meunier
- Aix-Marseille Univ, CNRS, IRD, Coll de France, INRAE, CEREGE, Aix-en-Provence, France
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10
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Mahendran PP, Parvathi SU, Balasubramaniam P, Yuvaraj M, Chandramani P. Identifying critical limit in soil and plant for determining response of rice ( Oryza Sativa L.) to silicon application in periyar vaigai command area of Tamil Nadu, India. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1818240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Peyandi Paraman Mahendran
- Department of Crop Management, Agriculture College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai, India
| | - Sreya U. Parvathi
- Agriculture College and Research Institute, Tamil Nadu Agricultural University, Madurai, India
| | - Palanisamy Balasubramaniam
- Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Navalur Kutapattu, India
| | - Muthuraman Yuvaraj
- Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Vazhavachanure, India
| | - Periyakaman Chandramani
- Department of Agricultural Entomology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai, India
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Adhikari A, Khan MA, Lee KE, Kang SM, Dhungana SK, Bhusal N, Lee IJ. The Halotolerant Rhizobacterium- Pseudomonas koreensis MU2 Enhances Inorganic Silicon and Phosphorus Use Efficiency and Augments Salt Stress Tolerance in Soybean ( Glycine max L.). Microorganisms 2020; 8:microorganisms8091256. [PMID: 32825007 PMCID: PMC7570339 DOI: 10.3390/microorganisms8091256] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 01/20/2023] Open
Abstract
Optimizing nutrient usage in plants is vital for a sustainable yield under biotic and abiotic stresses. Since silicon and phosphorus are considered key elements for plant growth, this study assessed the efficient supplementation strategy of silicon and phosphorus in soybean plants under salt stress through inoculation using the rhizospheric strain—Pseudomonas koreensis MU2. The screening analysis of MU2 showed its high salt-tolerant potential, which solubilizes both silicate and phosphate. The isolate, MU2 produced gibberellic acid (GA1, GA3) and organic acids (malic acid, citric acid, acetic acid, and tartaric acid) in pure culture under both normal and salt-stressed conditions. The combined application of MU2, silicon, and phosphorus significantly improved silicon and phosphorus uptake, reduced Na+ ion influx by 70%, and enhanced K+ uptake by 46% in the shoots of soybean plants grown under salt-stress conditions. MU2 inoculation upregulated the salt-resistant genes GmST1, GmSALT3, and GmAKT2, which significantly reduced the endogenous hormones abscisic acid and jasmonic acid while, it enhanced the salicylic acid content of soybean. In addition, MU2 inoculation strengthened the host’s antioxidant system through the reduction of lipid peroxidation and proline while, it enhanced the reduced glutathione content. Moreover, MU2 inoculation promoted root and shoot length, plant biomass, and the chlorophyll content of soybean plants. These findings suggest that MU2 could be a potential biofertilizer catalyst for the amplification of the use efficiency of silicon and phosphorus fertilizers to mitigate salt stress.
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Affiliation(s)
- Arjun Adhikari
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (A.A.); (M.A.K.); (K.-E.L.); (S.-M.K.)
| | - Muhammad Aaqil Khan
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (A.A.); (M.A.K.); (K.-E.L.); (S.-M.K.)
| | - Ko-Eun Lee
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (A.A.); (M.A.K.); (K.-E.L.); (S.-M.K.)
| | - Sang-Mo Kang
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (A.A.); (M.A.K.); (K.-E.L.); (S.-M.K.)
| | - Sanjeev Kumar Dhungana
- Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration, Miryang 50424, Korea;
| | - Narayan Bhusal
- Department of Forest Sciences, Seoul National University, Seoul 08826, Korea;
| | - In-Jung Lee
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (A.A.); (M.A.K.); (K.-E.L.); (S.-M.K.)
- Correspondence: ; Tel.: +82-53-950-5708
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Liu L, Song Z, Yu C, Yu G, Ellam RM, Liu H, Singh BP, Wang H. Silicon Effects on Biomass Carbon and Phytolith-Occluded Carbon in Grasslands Under High-Salinity Conditions. FRONTIERS IN PLANT SCIENCE 2020; 11:657. [PMID: 32528507 PMCID: PMC7264264 DOI: 10.3389/fpls.2020.00657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/28/2020] [Indexed: 05/06/2023]
Abstract
Changes in climate and land use are causing grasslands to suffer increasingly from abiotic stresses, including soil salinization. Silicon (Si) amendment has been frequently proposed to improve plant resistance to multiple biotic and abiotic stresses and increase ecosystem productivity while controlling the biogeochemical carbon (C) cycle. However, the effects of Si on plant C distribution and accumulation in salt-suffering grasslands are still unclear. In this study, we investigated how salt ions affected major elemental composition in plants and whether Si enhanced biomass C accumulation in grassland species in situ. In samples from the margins of salt lakes, our results showed that the differing distance away from the shore resulted in distinctive phytocoenosis, including halophytes and moderately salt-tolerant grasses, which are closely related to changing soil properties. Different salinity (Na+/K+, ranging from 0.02 to 11.8) in plants caused negative effects on plant C content that decreased from 53.9 to 29.2% with the increase in salinity. Plant Si storage [0.02-2.29 g Si m-2 dry weight (dw)] and plant Si content (0.53 to 2.58%) were positively correlated with bioavailable Si in soils (ranging from 94.4 to 192 mg kg-1). Although C contents in plants and phytoliths were negatively correlated with plant Si content, biomass C accumulation (1.90-83.5 g C m-2 dw) increased due to the increase of Si storage in plants. Plant phytolith-occluded carbon (PhytOC) increased from 0.07 to 0.28‰ of dry mass with the increase of Si content in moderately salt-tolerant grasses. This study demonstrates the potential of Si in mediating plant salinity and C assimilation, providing a reference for potential manipulation of long-term C sequestration via PhytOC production and biomass C accumulation in Si-accumulator dominated grasslands.
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Affiliation(s)
- Linan Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, China
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, China
| | - Changxun Yu
- Department of Biology and Environmental Science, Linnaeus University, Kalmar, Sweden
| | - Guanghui Yu
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, China
| | - Rob M. Ellam
- Institute of Surface-Earth System Science, Tianjin University, Tianjin, China
- Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom
| | - Hongyan Liu
- College of Urban and Environmental Sciences, Peking University, Beijing, China
| | - Bhupinder Pal Singh
- School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia
- NSW Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW, Australia
| | - Hailong Wang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, China
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