151
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Zhang P, Zhang Y, Pang W, Alonazi MA, Alwathnani H, Rensing C, Xie R, Zhang T. Cenococcum geophilum impedes cadmium toxicity in Pinus massoniana by modulating nitrogen metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174296. [PMID: 38944303 DOI: 10.1016/j.scitotenv.2024.174296] [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: 04/07/2024] [Revised: 06/23/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
Nitrogen (N) is of great significance to the absorption, distribution and detoxification of cadmium (Cd). Ectomycorrhizal fungi (EMF) are able to affect the key processes of plant N uptake to resist Cd stress, while the mechanism is still unclear. Therefore, we explored potential strategies of Cenococcum geophilum (C. geophilum) symbiosis to alleviate Cd stress in Pinus massoniana (P. massoniana) from the perspective of plant N metabolism and soil N transformation. The results showed that inoculation of C. geophilum significantly increased the activities of NR, NiR and GS in the shoots and roots of P. massoniana, thereby promoting the assimilation of NO3- and NH4+ into amino acids. Moreover, C. geophilum promoted soil urease and protease activities, but decreased soil NH4+ content, indicating that C. geophilum might increase plant uptake of soil inorganic N. qRT-PCR results showed that C3 symbiosis significantly up-regulated the expression of genes encoding functions involved in NH4+ uptake (AMT3;1), NO3- uptake (NRT2.1, NRT2.4, NRT2.9), as well as Cd resistance (ABCC1 and ABCC2), meanwhile down-regulated the expression of NRT7.3, Cd transporter genes (HMA2 and NRAMP3) in the roots of P. massoniana seedlings. These results demonstrated that C. geophilum was able to alleviate Cd stress by increasing the absorption and assimilation of inorganic N in plants and inhibiting the transport of Cd from roots to shoots, which provided new insights into how EMF improved host resistance to abiotic stress.
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Affiliation(s)
- Panpan Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuhu Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wenbo Pang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Madeha A Alonazi
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Hend Alwathnani
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Christopher Rensing
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Rongzhang Xie
- Forestry Bureau, Sanyuan District, Sanming 365000, China
| | - Taoxiang Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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152
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Fuchs B, Helander M, Saikkonen K, Dobrev PI, Vankova R, Blande JD, Salminen JP, Luntamo N, Muola A. Plant metabolic responses to soil herbicide residues differ under herbivory in two woodland strawberry genotypes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174198. [PMID: 38914330 DOI: 10.1016/j.scitotenv.2024.174198] [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: 04/20/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
The use of glyphosate-based herbicides (GBHs) to control weeds has increased exponentially in recent decades, and their residues and degradation products have been found in soils across the globe. GBH residues in soil have been shown to affect plant physiology and specialised metabolite biosynthesis, which, in turn, may impact plant resistance to biotic stressors. In a greenhouse study, we investigated the interactive effects between soil GBH residues and herbivory on the performance, phytohormone concentrations, phenolic compound concentrations and volatile organic compound (VOC) emissions of two woodland strawberry (Fragaria vesca) genotypes, which were classified as herbivore resistant and herbivore susceptible. Plants were subjected to herbivory by strawberry leaf beetle (Galerucella tenella) larvae, and to GBH residues by growing in soil collected from a field site with GBH treatments twice a year over the past eight years. Soil GBH residues reduced the belowground biomass of the susceptible genotype and the aboveground biomass of both woodland strawberry genotypes. Herbivory increased the belowground biomass of the resistant genotype and the root-shoot ratio of both genotypes. At the metabolite level, herbivory induced the emission of several VOCs. Jasmonic acid, abscisic acid and auxin concentrations were induced by herbivory, in contrast to salicylic acid, which was only induced by herbivory in combination with soil GBH residues in the resistant genotype. The concentrations of phenolic compounds were higher in the resistant genotype compared to the susceptible genotype and were induced by soil GBH residues in the resistant genotype. Our results indicate that soil GBH residues can differentially affect plant performance, phytohormone concentrations and phenolic compound concentrations under herbivore attack, in a genotype-dependent manner. Soil GBH altered plant responses to herbivory, which may impact plant resistance traits and species interactions. With ongoing agrochemical pollution, we need to consider plant cultivars with better resistance to polluted soils while maintaining plant resilience under challenging environmental conditions.
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Affiliation(s)
- Benjamin Fuchs
- Biodiversity Unit, University of Turku, 20014 Turku, Finland.
| | - Marjo Helander
- Department of Biology, University of Turku, 20014 Turku, Finland
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, 20014 Turku, Finland
| | - Petre I Dobrev
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - Radomira Vankova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - James D Blande
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Juha-Pekka Salminen
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Niko Luntamo
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Anne Muola
- Biodiversity Unit, University of Turku, 20014 Turku, Finland; Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
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153
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Vaidya S, Hoffmann M, Dubbert M, Kramp K, Schmidt M, Verch G, Sommer M, Augustin J. Topsoil dilution by subsoil admixture had less impact on soil organic carbon stock development than fertilizer form and erosion state. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174243. [PMID: 38944309 DOI: 10.1016/j.scitotenv.2024.174243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/01/2024]
Abstract
Enhancing the agroecosystems carbon (C) sink function for climate mitigation faced challenges, particularly with traditional measures with limited suitability for increasing soil organic carbon (SOC) stocks. Inducing a SOC undersaturation in the topsoil by abrupt subsoil admixture is a way to create an additional C sink. However, the deep tillage traditionally used for this topsoil dilution was not always successful. It was due to a lack of knowledge and suitable approaches to record the effect of all relevant factors in SOC recovery, including soil conditions and fertilizer forms. We addressed these problems by establishing a three-factorial experiment: I) "moderate topsoil dilution," II) "N fertilization form," and III) "soil erosion state," representing three soil types in the hummocky ground moraine landscape of NE Germany. SOC dynamics were determined over a year of winter rye cropping using a novel robotic chamber system capable of measuring CO2 exchange on 36 experimental plots with a reduced methodological bias than previous measuring systems. The averaged net ecosystem carbon balance, a proxy for SOC stock change, indicated that topsoil dilution only reduced further SOC losses. The N fertilizer form had a significantly stronger and more differentiated effect. While the mineral N fertilization consistently produced only C sources, the organic fertilization, in combination with the diluted topsoil, led to a C sink. This C-sink function was, however, more pronounced in the eroded soil than in the non-eroded soil. Overall, the results have made clear that the impact of topsoil dilution on the further development of the SOC stock is only possible if the effect of other relevant factors, such as N fertilizer form and erosion state, are taken into account.
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Affiliation(s)
- Shrijana Vaidya
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany; Albrecht Daniel Thaer Institute, Faculty of Life Science, Humboldt-Universität zu Berlin, 14195 Berlin, Germany.
| | - Mathias Hoffmann
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany
| | - Maren Dubbert
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany
| | - Katja Kramp
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany
| | - Marten Schmidt
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany
| | - Gernot Verch
- Leibniz Center for Agricultural Landscape Research (ZALF), Experimental Infrastructure Platform, Steinfurther Straße 14, 17291 Prenzlau, Germany
| | - Michael Sommer
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Landscape Pedology, Eberswalder Str. 84, 15374 Müncheberg, Germany; University of Potsdam, Institute of Environmental Science and Geography, Karl-Liebknecht-Str.24-25, 14476 Potsdam, Germany
| | - Jürgen Augustin
- Leibniz Center for Agricultural Landscape Research (ZALF), working group for Isotope Biogeochemistry and Gas Fluxes, Eberswalder Str. 84, 15374 Müncheberg, Germany
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154
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Shen L, Li Z, Huang X, Zhang P, Zhang L, Zhao W, Wen Y, Liu H. Effects of polystyrene microplastic composite with florfenicol on photosynthetic carbon assimilation of rice (Oryza sativa L.) seedlings: Light reactions, carbon reactions, and molecular metabolism. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135470. [PMID: 39128152 DOI: 10.1016/j.jhazmat.2024.135470] [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: 11/20/2023] [Revised: 08/02/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024]
Abstract
The effects of co-exposure to antibiotics and microplastics in agricultural systems are still unclear. This study investigated the effects of florfenicol (FF) and polystyrene microplastics (PS-MPs) on photosynthetic carbon assimilation in rice seedlings. Both FF and PS-MPs inhibited photosynthesis, while PS-MPs can alleviate the toxicity of FF. Chlorophyll synthesis genes (HEMA, HEMG, CHLD, CHLG, CHLM, and CAO) were down-regulated, whereas electron transport chain genes (PGR5, PGRL1A, PGRL1B, petH, and ndhH) were up-regulated. FF inhibited linear electron transfer (LET) and activated cyclic electron transfer (CET), which was consistent with the results of the chlorophyll fluorescence parameters. The photosynthetic carbon assimilation pathway was altered, the C3 pathway enzyme Ribulose1,5-bisphosphatecarboxylase/oxygenase (RuBisCO) was affected, C4 enzyme ((phosphoenolpyruvate carboxykinase (PEPCK), pyruvate orthophosphate dikinase (PPDK), malate dehydrogenase (MDH), and phosphoenolpyruvate carboxylase (PEPC))) and related genes were significantly up-regulated, suggesting that the C3 pathway is converted to C4 pathway for self-protection. The key enzymes involved in photorespiration, glycolate oxidase (GO) and catalase (CAT), responded positively, photosynthetic phosphorylation was inhibited, and ATP content and H+-ATPase activity were suppressed, nutrient content (K, P, N, Ca, Mg, Fe, Cu, Zn, Mn, and Ni) significantly affected. Transcriptomic analysis showed that FF and PS-MPs severely affected the photosynthetic capacity of rice seedlings, including photosystem I, photosystem II, non-photochemical quenching coefficients, and photosynthetic electron transport.
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Affiliation(s)
- Luoqin Shen
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Zhiheng Li
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Xinting Huang
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Ping Zhang
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Liangyu Zhang
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Wenlu Zhao
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China
| | - Yuezhong Wen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Huijun Liu
- School of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou 310018, Zhejiang Province, China.
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155
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Zhang Y, Wang X, Sun Y. A newly identified algicidal bacterium of Pseudomonas fragi YB2: Algicidal compounds and effects. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135490. [PMID: 39141946 DOI: 10.1016/j.jhazmat.2024.135490] [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: 03/19/2024] [Revised: 08/03/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024]
Abstract
Harmful algal bloom (HAB) is an unresolved existing problem worldwide. Here, we reported a novel algicidal bacterium, Pseudomonas fragi YB2, capable of lysing multiple algal species. To Chlorella vulgaris, YB2 exhibited a maximum algicidal rate of 95.02 % at 120 h. The uniqueness of YB2 lies in its ability to self-produce three algicidal compounds: 2-methyl-1, 3-cyclohexanedione (2-MECHD), N-phenyl-2-naphthylamine, and cyclo (Pro-Leu). The algicidal properties of 2-MECHD have not been previously reported. YB2 significantly affected the chloroplast and mitochondrion, thus decreasing in chlorophyll a by 4.74 times for 120 h and succinate dehydrogenase activity by 103 times for 36 h. These physiological damages disrupted reactive oxygen species and Ca2+ homeostasis at the cellular level, increasing cytosolic superoxide dismutase (23 %), catalase (35 %), and Ca2+ influx. Additionally, the disruption of Ca2+ homeostasis rarely reported in algicidal bacteria-algae interaction was observed using the non-invasive micro-test technology. We proposed a putative algicidal mechanism based on the algicidal outcomes and physiological algicidal effects and explored the potential of YB2 through an algicidal simulation test. Overall, this study is the first to report the algicidal bacterium P. fragi and identify a novel algicidal compound, 2-MECHD, providing new insights and a potent microbial resource for the biocontrol of HAB.
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Affiliation(s)
- Yini Zhang
- School of Environment, Northeast Normal University, Changchun 130117, Jilin, PR China.
| | - Xiaoyu Wang
- School of Environment, Northeast Normal University, Changchun 130117, Jilin, PR China.
| | - Yu Sun
- School of Environment, Northeast Normal University, Changchun 130117, Jilin, PR China.
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156
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de Jesús-Campos D, García-Ortega LF, Fimbres-Olivarría D, Herrera-Estrella L, López-Elías JA, Hayano-Kanashiro C. Transcriptomic analysis of Chaetoceros muelleri in response to different nitrogen concentrations reveals the activation of pathways to enable efficient nitrogen uptake. Gene 2024; 924:148589. [PMID: 38777108 DOI: 10.1016/j.gene.2024.148589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/07/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
Nitrogen is the principal nutrient deficiency that increases lipids and carbohydrate content in diatoms but negatively affects biomass production. Marine diatom Chaetoceros muelleri is characterized by lipid and carbohydrate accumulation under low nitrogen concentration without affecting biomass. To elucidate the molecular effects of nitrogen concentrations, we performed an RNA-seq analysis of C. muelleri grown under four nitrogen concentrations (3.53 mM, 1.76 mM, 0.44 mM, and 0.18 mM of NaNO3). This research revealed that changes in global transcription in C. muelleri are differentially expressed by nitrogen concentration. "Energetic metabolism", "Carbohydrate metabolism" and "Lipid metabolism" pathways were identified as the most upregulated by N deficiency. Due to N limitation, alternative pathways to self-supply nitrogen employed by microalgal cells were identified. Additionally, nitrogen limitation decreased chlorophyll content and caused a greater response at the transcriptional level with a higher number of unigenes differentially expressed. By contrast, the highest N concentration (3.53 mM) recorded the lowest number of differentially expressed genes. Amt1, Nrt2, Fad2, Skn7, Wrky19, and Dgat2 genes were evaluated by RT-qPCR. In conclusion, C. muelleri modify their metabolic pathways to optimize nitrogen utilization and minimize nitrogen losses. On the other hand, the assembled transcriptome serves as the basis for metabolic engineering focused on improving the quantity and quality of the diatom for biotechnological applications. However, proteomic and metabolomic analysis is also required to compare gene expression, protein, and metabolite accumulation.
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Affiliation(s)
- Damaristelma de Jesús-Campos
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Hermosillo-Sonora CP 83000, Mexico
| | - Luis Fernando García-Ortega
- Departamento de Ingeniería Genética, Centro de Investigación y Estudios Avanzados del IPN, Irapuato-Guanajuato Zip Code 36821, Mexico
| | - Diana Fimbres-Olivarría
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Hermosillo-Sonora CP 83000, Mexico
| | - Luis Herrera-Estrella
- Institute of Genomics for Crop Abiotic Stress Tolerance, Plant and Soil Science Department, Texas Tech University, 79409 Lubbock, TX, USA; Unidad de Genómica Avanzada/LANGEBIO, Centro de Investigación y Estudios Avanzados del IPN, Irapuato-Guanajuato Zip Code 36821, Mexico
| | - José Antonio López-Elías
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Hermosillo-Sonora CP 83000, Mexico.
| | - Corina Hayano-Kanashiro
- Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Hermosillo-Sonora CP 83000, Mexico.
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157
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Li F, Chen C, Jin H, Ding T, Feng J, Qiu W, Wang Q. Selective lead capture using amide-containing COFs: A novel strategy for efficient soil remediation. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135424. [PMID: 39116749 DOI: 10.1016/j.jhazmat.2024.135424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
A critical consideration in the application of phytoremediation to remediate sludge soil contaminated with heavy metals is the potential for leaching risks that prevail prior to the efficient uptake of these metals by plants. The most cost-effective method is to use heavy metal stabilizers with selective adsorption. A novel amide-based COF material (COF-TH) has been synthesized as a heavy metal stabilizer for Pb. COF-TH exhibits significant selectivity for Pb in five-metal-mixed solutions, with a distribution coefficient KD as high as 3279 mL·g-1, which was more than 7.3 times that of other heavy metals. The maximum adsorption capacity of COF-TH for Pb was 189 mg·g-1. The adsorption fitted Langmuir model and intra-particle diffusion model, and satisfied pseudo-second-order kinetic model. The excellent selectivity and adsorption performance originate from the complexation between abundant amide groups and Pb ions. Pot experiments and leaching assays confirm that COF-TH decreased Pb leachate concentrations by 77.8 % without significantly decreasing total phytoextracted amounts of other heavy metals, due to the high selectivity of COF-TH to Pb. Additionally, its positive impact on plant growth and microbial diversity makes it a promising soil remediation agent. This investigation offers a novel approach to mitigate the leaching risk of a specific heavy metal Pb during sludge land application by integrating soil phytoremediation with stabilization techniques.
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Affiliation(s)
- Feili Li
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China.
| | - Cheng Chen
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Hui Jin
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Tianzheng Ding
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Jianru Feng
- Zhejiang GuoFu Environmental Technology Co, Ltd, Hangzhou 311100, PR China
| | - Wanting Qiu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Qiaoli Wang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China.
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158
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Ferdoush J, Kadir RA, Ogle M, Saha A. Regulation of eukaryotic transcription initiation in response to cellular stress. Gene 2024; 924:148616. [PMID: 38795856 DOI: 10.1016/j.gene.2024.148616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 05/17/2024] [Accepted: 05/22/2024] [Indexed: 05/28/2024]
Abstract
Transcription initiation is a vital step in the regulation of eukaryotic gene expression. It can be dysregulated in response to various cellular stressors which is associated with numerous human diseases including cancer. Transcription initiation is facilitated via many gene-specific trans-regulatory elements such as transcription factors, activators, and coactivators through their interactions with transcription pre-initiation complex (PIC). These trans-regulatory elements can uniquely facilitate PIC formation (hence, transcription initiation) in response to cellular nutrient stress. Cellular nutrient stress also regulates the activity of other pathways such as target of rapamycin (TOR) pathway. TOR pathway exhibits distinct regulatory mechanisms of transcriptional activation in response to stress. Like TOR pathway, the cell cycle regulatory pathway is also found to be linked to transcriptional regulation in response to cellular stress. Several transcription factors such as p53, C/EBP Homologous Protein (CHOP), activating transcription factor 6 (ATF6α), E2F, transforming growth factor (TGF)-β, Adenomatous polyposis coli (APC), SMAD, and MYC have been implicated in regulation of transcription of target genes involved in cell cycle progression, apoptosis, and DNA damage repair pathways. Additionally, cellular metabolic and oxidative stressors have been found to regulate the activity of long non-coding RNAs (lncRNA). LncRNA regulates transcription by upregulating or downregulating the transcription regulatory proteins involved in metabolic and cell signaling pathways. Numerous human diseases, triggered by chronic cellular stressors, are associated with abnormal regulation of transcription. Hence, understanding these mechanisms would help unravel the molecular regulatory insights with potential therapeutic interventions. Therefore, here we emphasize the recent advances of regulation of eukaryotic transcription initiation in response to cellular stress.
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Affiliation(s)
- Jannatul Ferdoush
- Department of Biology, Geology, and Environmental Science, University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN 37403, USA.
| | - Rizwaan Abdul Kadir
- Department of Biology, Geology, and Environmental Science, University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN 37403, USA
| | - Matthew Ogle
- Department of Biology, Geology, and Environmental Science, University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN 37403, USA
| | - Ayan Saha
- Department of Bioinformatics and Biotechnology, Asian University for Women, Chattogram, Bangladesh
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159
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Liu T, Wang Y, Li X, Che H, Zhang Y. LpNAC5 positively regulates drought, salt and alkalinity tolerance of Lilium pumilum. Gene 2024; 924:148550. [PMID: 38777109 DOI: 10.1016/j.gene.2024.148550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
NACs (NAM、ATAF1/2、CUC1/2), as a large family of plant transcription factors, are widely involved in abiotic stress responses. This study aimed to isolate and clone a novel stress-responsive transcription factor LpNAC5 from Lilium pumilum bulbs. Drought, salt, alkali, and ABA stresses induced the expression of LpNAC5. Transgenic tobacco plants overexpressing LpNAC5 were generated using the Agrobacterium-mediated method to understand the role of this factor in stress response. These plants exhibited increased tolerance to drought, salt, and alkali stresses. The tobacco plants overexpressing LpNAC5 showed strong drought, salt, and alkaline tolerance. Under the three abiotic stresses, the activities of antioxidant enzymes were enhanced, the contents of proline and chlorophyll increased, and the contents of malondialdehyde decreased. The functional analysis revealed that LpNAC5 enabled plants to positively regulate drought and salt stresses. These findings not only provided valuable insights into stress tolerance mechanisms in L. pumilum but also offered a potential genetic resource for breedi.
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Affiliation(s)
- Tongfei Liu
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China
| | - Ying Wang
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China
| | - Xufei Li
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China
| | - Haitao Che
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China
| | - Yanni Zhang
- College of Landscape Architecture, Northeast Forestry University, Harbin 150040, China.
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160
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Wu Y, Hu L, Wu L, Yang Y, Li Y. Real-time monitoring abscisic acid release from single rice protoplast by amperometry at microelectrodes modified with abscisic acid receptor PYL2. Bioelectrochemistry 2024; 159:108733. [PMID: 38761493 DOI: 10.1016/j.bioelechem.2024.108733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
It was previously reported that stress induces a cellular production of abscisic acid in plants, but no direct method shows the evidence. Here, an electrochemical microsensor involving an abscisic acid receptor PYL2 modified carbon fiber microelectrode was fabricated by self-assembly method, where the Cu2+ combined with the histidine tag of PYL2 on the surface of microelectrode was used as the detection probe, the mediated reaction between Cu+ and ferricyanide realized the amplification responses and provided the microsensor with a high sensitivity for detection of abscisic acid with a detection limit of 0.8 nM. With use of this microsensor, an increase of extracellular abscisic acid from single rice protoplast induced by sulfate, osmotic and salinity stress was real-time monitored. Direct measurement of free extracellular abscisic acid in single plant cells might offer important new insights into its role in plants challenged by abiotic stresses.
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Affiliation(s)
- Yunhua Wu
- College of Life Science, South-Central Minzu University, Wuhan 430074, PR China.
| | - Liuzhe Hu
- College of Life Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Lvliang Wu
- College of Life Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Yong Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Yong Li
- College of Life Science, South-Central Minzu University, Wuhan 430074, PR China
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161
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Faizan M, Singh A, Eren A, Sultan H, Sharma M, Djalovic I, Trivan G. Small molecule, big impacts: Nano-nutrients for sustainable agriculture and food security. JOURNAL OF PLANT PHYSIOLOGY 2024; 301:154305. [PMID: 39002339 DOI: 10.1016/j.jplph.2024.154305] [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: 05/14/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024]
Abstract
Human existence and the long-term viability of society depend on agriculture. Overuse of synthetic fertilizers results in increased contamination of the land, water, and atmosphere as well as financial constraints. In today's modern agriculture, environmentally friendly technology is becoming more and more significant as a substitute for conventional fertilizers and chemical pesticides. Using nanotechnology, agricultural output can be improved in terms of quality, biological support, financial stability, and environmental safety. There is a lot of promise for the sustainable application of nano-fertilizers in crop productivity and soil fertility, with little or no negative environmental effects. In this context, the present review provided an overview of the benefits of using nanofertilizers, its application and types. Mechanistic approach for increasing soil fertility and yield via nanofertilizers also described in detail. We concluded this article to compare the advantages of nanofertilizers over chemicals and nano-chemicals. Nonetheless, additional investigation is required to comprehend the effects and possible hazards of nanomaterials in the food production chain.
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Affiliation(s)
- Mohammad Faizan
- Department of Botany, School of Sciences, Maulana Azad National Urdu University, Hyderabad, 500032, India.
| | - Aishwarya Singh
- School of Applied Sciences, Shri Venkateshwara University, Gajraula, 244236, India; Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, 110007, India; Delhi School of Public Health, Institution of Eminence, University of Delhi, Delhi, 110007, India
| | - Abdullah Eren
- Department of Organic Agriculture, Kiziltepe Vocational School, Mardin Artuklu University, Artuklu, Turkey
| | - Haider Sultan
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China
| | - Meenakshi Sharma
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, 110007, India
| | - Ivica Djalovic
- Institute of Field and Vegetable Crops, National Institute of the Republic of Serbia, Maxim Gorki 30, 21000, Novi Sad, Serbia
| | - Goran Trivan
- Institute for Multidisciplinary Research, University of Belgrade, 11030, Belgrade, Serbia
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162
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Wang D, Feng Q, Wang X, Sun Y, Zhou W, Zhan X. Indole-3-acetic acid enhances the co-transport of proton and phenanthrene mediated by TaSAUR80-5A in wheat roots. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124522. [PMID: 38986759 DOI: 10.1016/j.envpol.2024.124522] [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: 12/09/2023] [Revised: 06/17/2024] [Accepted: 07/08/2024] [Indexed: 07/12/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a type of organic pollution that can accumulate in crops and hazard human health. This study used phenanthrene (PHE) as a model PAH and employed hydroponic experiments to illustrate the role of indole-3-acetic acid (IAA) in the regulation of PHE accumulation in wheat roots. At optimal concentrations, wheat roots treated with PHE + IAA showed a 46.9% increase in PHE concentration, whereas treatment with PHE + P-chlorophenoxyisobutyric acid resulted in a 38.77% reduction. Transcriptome analysis identified TaSAUR80-5A as the crucial gene for IAA-enhancing PHE uptake. IAA increases plasma membrane H+-ATPase activity, promoting active transport of PHE via the PHE/H+ cotransport mechanism. These results provide not only the theoretical basis necessary to better understand the function of IAA in PAHs uptake and transport by staple crops, but also a strategy for controlling PAHs accumulation in staple crops and enhancing phytoremediation of PAH-contaminated environments.
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Affiliation(s)
- Dongru Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Qiurun Feng
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Xuke Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Yilei Sun
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Wenhui Zhou
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Xinhua Zhan
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, People's Republic of China.
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163
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Li Y, Chen Y, Li P, Huang H, Xue K, Cai S, Liao X, Jin S, Zheng D. Microplastics in soil affect the growth and physiological characteristics of Chinese fir and Phoebe bournei seedlings. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124503. [PMID: 38977122 DOI: 10.1016/j.envpol.2024.124503] [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: 03/20/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/10/2024]
Abstract
Pot experiments were conducted using Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) and Phoebe bournei (Hemsl.) Yang) to investigate whether soil microplastics adversely affect the nurturing and renewal of plantations. Microplastics composed of polyethylene and polypropylene with a size of 48 μm were used. The treatments included a control group (without microplastics) and groups treated with microplastic concentrations of 1% and 2% (w/w). The effects of microplastics on the growth, photosynthetic pigments in leaves, antioxidant systems, and osmotic regulation substances of the seedlings were analysed by measuring the seedling height, ground-line diameter growth, chlorophyll (chlorophyll a, chlorophyll b, and total chlorophyll) contents, antioxidant enzyme (superoxide dismutase, peroxidase, catalase) activities, and malondialdehyde, soluble sugar, and soluble protein levels. The results indicated that treatment with 1% polyethylene microplastics increased the chlorophyll a, total chlorophyll, and soluble protein contents in the leaves of both types of seedlings while inhibiting superoxide dismutase and peroxidase activities in P. bournei seedlings. Treatment with 2% polyethylene or polypropylene microplastics suppressed the chlorophyll a, chlorophyll b, and total chlorophyll contents; superoxide dismutase, peroxidase, and catalase activities; and soluble sugar and soluble protein levels in the leaves of both types of seedlings, resulting in reduced growth in terms of height and ground-line diameter. The physiological effects of polyethylene microplastics were more evident than those of polypropylene at the same concentration. The results demonstrated that microplastics can affect photosynthesis, the antioxidant system, and osmotic regulation in Chinese fir and P. bournei seedlings, thereby inhibiting their normal growth and development. Exposure to 1% (w/w) microplastics triggered stress responses in seedlings, whereas 2% (w/w) microplastics impeded seedling growth.
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Affiliation(s)
- Yuru Li
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Yifei Chen
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Peiyao Li
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Haifeng Huang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Kexin Xue
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Siying Cai
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Xiaoli Liao
- Department of Geography, Minjiang University, Fuzhou, 350108, China.
| | - Shaofei Jin
- Department of Geography, Minjiang University, Fuzhou, 350108, China.
| | - Dexiang Zheng
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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164
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Zheng Z, Schmidt-Rohr K. Phenolic syringyl end groups in 13C-enriched hardwoods detected and quantified by solid-state NMR. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2024; 133:101947. [PMID: 39067393 DOI: 10.1016/j.ssnmr.2024.101947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/14/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024]
Abstract
While syringyl units are the most abundant monolignols in hardwood lignin, their phenolic (i.e. hydroxyl) end group concentration has not been measured. In two uniformly 13C-enriched young hardwoods, from beech and oak, the syringyl units were quantitatively investigated by advanced solid-state 13C NMR. Small signals of OH-terminated syringyl units were resolved in spectrally edited two-dimensional 13C-13C NMR spectra of the two hardwoods. Their distinct peak positions predicted based on literature data were validated via the abundant OH-terminated syringyl units in hydrolyzed 13C-beechwood. In a two-dimensional 13C-13C exchange spectrum with diagonal-ridge suppression, a well-resolved peak of phenolic syringyl units was observed at the characteristic C-H peak position of syringyl rings, without significant overlap from guaiacyl peaks. Accurate 13C chemical shifts of regular and end-group syringyl units were obtained. Through spectrally edited 2D NMR after 1H inversion recovery, phenols of condensed tannin complexed with arginine were carefully analyzed and shown to overlap minimally with signals from phenolic syringyl units. The local structure and resulting spin dynamics of ether (chain) and hydroxyl (end-group) syringyl units are nearly the same, enabling quantification by peak integration or deconvolution, which shows that phenolic syringyl end groups account for 2 ± 1 % of syringyl units in beechwood and 5 ± 2 % in oakwood. The observed low end-group concentration needs to be taken into account in realistic molecular models of hardwood lignin structure.
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Affiliation(s)
- Zhaoxi Zheng
- Department of Chemistry, Brandeis University, Waltham, MA, 02453, United States
| | - Klaus Schmidt-Rohr
- Department of Chemistry, Brandeis University, Waltham, MA, 02453, United States.
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165
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Wang X, Yamaguchi N. Cause or effect: Probing the roles of epigenetics in plant development and environmental responses. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102569. [PMID: 38833828 DOI: 10.1016/j.pbi.2024.102569] [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: 01/25/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/06/2024]
Abstract
Epigenetic modifications are inheritable, reversible changes that control gene expression without altering the DNA sequence itself. Recent advances in epigenetic and sequencing technologies have revealed key regulatory regions in genes with multiple epigenetic changes. However, causal associations between epigenetic changes and physiological events have rarely been examined. Epigenome editing enables alterations to the epigenome without changing the underlying DNA sequence. Modifying epigenetic information in plants has important implications for causality assessment of the epigenome. Here, we briefly review tools for selectively interrogating the epigenome. We highlight promising research on site-specific DNA methylation and histone modifications and propose future research directions to more deeply investigate epigenetic regulation, including cause-and-effect relationships between epigenetic modifications and the development/environmental responses of Arabidopsis thaliana.
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Affiliation(s)
- Xuejing Wang
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara, 630-0192, Japan
| | - Nobutoshi Yamaguchi
- Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara, 630-0192, Japan.
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166
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Sánchez-Pérez R, Neilson EH. The case for sporadic cyanogenic glycoside evolution in plants. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102608. [PMID: 39089185 DOI: 10.1016/j.pbi.2024.102608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 08/03/2024]
Abstract
Cyanogenic glycosides are α-hydroxynitrile glucosides present in approximately 3000 different plant species. Upon tissue disruption, cyanogenic glycosides are hydrolyzed to release toxic hydrogen cyanide as a means of chemical defense. Over 100 different cyanogenic glycosides have been reported, with structural diversity dependent on the precursor amino acid, and subsequent modifications. Cyanogenic glycosides represent a prime example of sporadic metabolite evolution, with the metabolic trait arising multiple times throughout the plant lineage as evidenced by recruitment of different enzyme families for biosynthesis. Here, we review the latest developments within cyanogenic glycoside biosynthesis, and argue possible factors driving sporadic evolution including shared intermediates and crossovers with other metabolic pathways crossovers, and metabolite multifunctionality beyond chemical defense.
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Affiliation(s)
| | - Elizabeth Hj Neilson
- Plant Biochemistry Section, Department of Plant and Environmental Sciences, University of Copenhagen.
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167
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Batelli G, Ruggiero A, Esposito S, Venezia A, Lupini A, Nurcato R, Costa A, Palombieri S, Vitiello A, Mauceri A, Cammareri M, Sunseri F, Grandillo S, Granell A, Abenavoli MR, Grillo S. Combined salt and low nitrate stress conditions lead to morphophysiological changes and tissue-specific transcriptome reprogramming in tomato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108976. [PMID: 39094482 DOI: 10.1016/j.plaphy.2024.108976] [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: 05/23/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 08/04/2024]
Abstract
Despite intense research towards the understanding of abiotic stress adaptation in tomato, the physiological adjustments and transcriptome modulation induced by combined salt and low nitrate (low N) conditions remain largely unknown. Here, three traditional tomato genotypes were grown under long-term single and combined stresses throughout a complete growth cycle. Physiological, molecular, and growth measurements showed extensive morphophysiological modifications under combined stress compared to the control, and single stress conditions, resulting in the highest penalty in yield and fruit size. The mRNA sequencing performed on both roots and leaves of genotype TRPO0040 indicated that the transcriptomic signature in leaves under combined stress conditions largely overlapped that of the low N treatment, whereas root transcriptomes were highly sensitive to salt stress. Differentially expressed genes were functionally interpreted using GO and KEGG enrichment analysis, which confirmed the stress and the tissue-specific changes. We also disclosed a set of genes underlying the specific response to combined conditions, including ribosome components and nitrate transporters, in leaves, and several genes involved in transport and response to stress in roots. Altogether, our results provide a comprehensive understanding of above- and below-ground physiological and molecular responses of tomato to salt stress and low N treatment, alone or in combination.
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Affiliation(s)
- Giorgia Batelli
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Alessandra Ruggiero
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Salvatore Esposito
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Accursio Venezia
- Research Centre for Vegetable and Ornamental Crops, Council for Agricultural Research and Economics (CREA-OF), 84098, Pontecagnano Faiano, Italy
| | - Antonio Lupini
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy
| | - Roberta Nurcato
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Antonello Costa
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Samuela Palombieri
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Antonella Vitiello
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Antonio Mauceri
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy
| | - Maria Cammareri
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Francesco Sunseri
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy
| | - Silvana Grandillo
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy
| | - Antonio Granell
- Instituto de Biología Molecular y Celular de Plantas (IBMCP). Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València, València, Spain
| | - Maria Rosa Abenavoli
- Department of Agraria, University Mediterranea of Reggio Calabria, Reggio Calabria, Italy.
| | - Stefania Grillo
- National Research Council of Italy, Institute of Biosciences and BioResources, Research Division Portici (CNR-IBBR), Portici, 80055, Italy.
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168
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Moreira X, Van den Bossche A, Moeys K, Van Meerbeek K, Thomaes A, Vázquez-González C, Abdala-Roberts L, Brunet J, Cousins SAO, Defossez E, De Pauw K, Diekmann M, Glauser G, Graae BJ, Hagenblad J, Heavyside P, Hedwall PO, Heinken T, Huang S, Lago-Núñez B, Lenoir J, Lindgren J, Lindmo S, Mazalla L, Naaf T, Orczewska A, Paulssen J, Plue J, Rasmann S, Spicher F, Vanneste T, Verschuren L, Visakorpi K, Wulf M, De Frenne P. Variation in insect herbivory across an urbanization gradient: The role of abiotic factors and leaf secondary metabolites. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109056. [PMID: 39186848 DOI: 10.1016/j.plaphy.2024.109056] [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: 07/02/2024] [Revised: 07/31/2024] [Accepted: 08/17/2024] [Indexed: 08/28/2024]
Abstract
Urbanization impacts plant-herbivore interactions, which are crucial for ecosystem functions such as carbon sequestration and nutrient cycling. While some studies have reported reductions in insect herbivory in urban areas (relative to rural or natural forests), this trend is not consistent and the underlying causes for such variation remain unclear. We conducted a continental-scale study on insect herbivory along urbanization gradients for three European tree species: Quercus robur, Tilia cordata, and Fraxinus excelsior, and further investigated their biotic and abiotic correlates to get at mechanisms. To this end, we quantified insect leaf herbivory and foliar secondary metabolites (phenolics, terpenoids, alkaloids) for 176 trees across eight European cities. Additionally, we collected data on microclimate (air temperature) and soil characteristics (pH, carbon, nutrients) to test for abiotic correlates of urbanization effects directly or indirectly (through changes in plant secondary chemistry) linked to herbivory. Our results showed that urbanization was negatively associated with herbivory for Q. robur and F. excelsior, but not for T. cordata. In addition, urbanization was positively associated with secondary metabolite concentrations, but only for Q. robur. Urbanization was positively associated with air temperature for Q. robur and F. excelsior, and negatively with soil nutrients (magnesium) in the case of F. excelsior, but these abiotic variables were not associated with herbivory. Contrary to expectations, we found no evidence for indirect effects of abiotic factors via plant defences on herbivory for either Q. robur or F. excelsior. Additional biotic or abiotic drivers must therefore be accounted for to explain observed urbanization gradients in herbivory and their interspecific variation.
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Affiliation(s)
- Xoaquín Moreira
- Misión Biológica de Galicia (MBG-CSIC), Apartado de Correos 28, 36080, Pontevedra, Galicia, Spain.
| | - Astrid Van den Bossche
- Forest & Nature Lab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090, Melle-Gontrode, Belgium
| | - Karlien Moeys
- Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001, Leuven, Belgium
| | - Koenraad Van Meerbeek
- Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001, Leuven, Belgium
| | - Arno Thomaes
- Research Institute for Nature and Forest (INBO), Gaverstraat 4, 9500, Geraardsbergen, Belgium
| | - Carla Vázquez-González
- Misión Biológica de Galicia (MBG-CSIC), Apartado de Correos 28, 36080, Pontevedra, Galicia, Spain
| | - Luis Abdala-Roberts
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Apartado Postal 4-116, Itzimná, 97000, Mérida, Yucatán, Mexico
| | - Jörg Brunet
- Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Box 190, 234 22, Lomma, Sweden
| | - Sara A O Cousins
- Department of Physical Geography, Stockholm University, 10691, Stockholm, Sweden
| | - Emmanuel Defossez
- Institute of Biology, Laboratory of Functional Ecology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Karen De Pauw
- Forest & Nature Lab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090, Melle-Gontrode, Belgium
| | - Martin Diekmann
- Institute of Ecology, FB 2, University of Bremen, James-Watt-Straße 1, 28359, Bremen, Germany
| | - Gaétan Glauser
- Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Neuchâtel, Switzerland
| | - Bente J Graae
- Department of Biology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Jenny Hagenblad
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Paige Heavyside
- Department of Biology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Per-Ola Hedwall
- Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Box 190, 234 22, Lomma, Sweden
| | - Thilo Heinken
- Institute of Biochemistry and Biology, University of Potsdam, Maulbeerallee 3, 14469, Potsdam, Germany
| | - Siyu Huang
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374, Muencheberg, Germany
| | - Beatriz Lago-Núñez
- Misión Biológica de Galicia (MBG-CSIC), Apartado de Correos 28, 36080, Pontevedra, Galicia, Spain
| | - Jonathan Lenoir
- UMR, CNRS 7058 'Ecologie et Dynamique des Systèmes Anthropisés' (EDYSAN), Université de Picardie Jules Verne, 1 Rue des Louvels, F-80037, Amiens, France
| | - Jessica Lindgren
- Department of Physical Geography, Stockholm University, 10691, Stockholm, Sweden
| | - Sigrid Lindmo
- Department of Biology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Leonie Mazalla
- Institute of Ecology, FB 2, University of Bremen, James-Watt-Straße 1, 28359, Bremen, Germany
| | - Tobias Naaf
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374, Muencheberg, Germany
| | - Anna Orczewska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Bankowa 9, 40-007, Katowice, Poland
| | - Jolina Paulssen
- Institute of Ecology, FB 2, University of Bremen, James-Watt-Straße 1, 28359, Bremen, Germany
| | - Jan Plue
- Department of Urban and Rural Development, SLU Swedish Biodiversity Centre (CBM). Swedish University for Agricultural Sciences, 750 07 Uppsala, Sweden
| | - Sergio Rasmann
- Institute of Biology, Laboratory of Functional Ecology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Fabien Spicher
- UMR, CNRS 7058 'Ecologie et Dynamique des Systèmes Anthropisés' (EDYSAN), Université de Picardie Jules Verne, 1 Rue des Louvels, F-80037, Amiens, France
| | - Thomas Vanneste
- Forest & Nature Lab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090, Melle-Gontrode, Belgium
| | - Louis Verschuren
- Forest & Nature Lab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090, Melle-Gontrode, Belgium; UGent-Woodlab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000, Ghent, Belgium; Centre for X-ray Tomography, Ghent University, 9000, Ghent, Belgium
| | - Kristiina Visakorpi
- Department of Biology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Monika Wulf
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374, Muencheberg, Germany
| | - Pieter De Frenne
- Forest & Nature Lab, Department of Environment, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090, Melle-Gontrode, Belgium
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Chen S, Han J, Wu S, Guo S, Tang Y, Zheng Y, Hu L, Zhang X, Zhang P, Zhang H, Ren G, Gao S. From non-coding RNAs to histone modification: The epigenetic mechanisms in tomato fruit ripening and quality regulation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109070. [PMID: 39191041 DOI: 10.1016/j.plaphy.2024.109070] [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: 05/22/2024] [Revised: 07/28/2024] [Accepted: 08/22/2024] [Indexed: 08/29/2024]
Abstract
Ripening is one of the most important stages of fruit development and determines the fruit quality. Various factors play a role in this process, with epigenetic mechanisms emerging as important players. Epigenetic regulation encompasses DNA methylation, histone modifications and variants, chromatin remodeling, RNA modifications, and non-coding RNAs. Over the past decade, studies using tomato as a model have made considerable progress in understanding the impact of epigenetic regulation on fleshy fruit ripening and quality. In this paper, we provide an overview of recent advancements in the epigenetic regulation of tomato fruit ripening and quality regulation, focusing on three main mechanisms: DNA/RNA modifications, non-coding RNAs, and histone modifications. Furthermore, we highlight the unresolved issues and challenges within this research field, offering perspectives for future investigations to drive agricultural innovation.
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Affiliation(s)
- Shengbo Chen
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jiazhen Han
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Shu Wu
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Shangjing Guo
- Qingdao Agricultural University, Qingdao, 266109, China
| | - Yufei Tang
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yujing Zheng
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Lei Hu
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xingxing Zhang
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China
| | - Peng Zhang
- Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | | | - Guodong Ren
- State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai, 200438, China.
| | - Shuai Gao
- The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, China.
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170
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Qin X, Zhang X, Ma C, Yang X, Hu Y, Liu Y, Hu Y, Wang D, Xiaodong Lv, Wang C, Shou J, Li B. Rice OsCIPK17-OsCBL2/3 module enhances shoot Na + exclusion and plant salt tolerance in transgenic Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109034. [PMID: 39226761 DOI: 10.1016/j.plaphy.2024.109034] [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: 12/28/2023] [Revised: 07/30/2024] [Accepted: 08/08/2024] [Indexed: 09/05/2024]
Abstract
Soil salinity is detrimental to plant growth and remains a major threat to crop productivity of the world. Plants employ various physiological and molecular mechanisms to maintain growth under salt stress. Identification of genes and genetic loci underlying plant salt tolerance holds the key to breeding salt tolerant crops. CIPK-CBL pathways regulate adaptive responses of plants (especially ion transport) to abiotic stresses via fine-tuned Ca2+ signal transduction. In this study, we showed that over-expression of OsCIPK17 in Arabidopsis enhanced primary root elongation under salt stress, which is in a Ca2+ dependent manner. Further investigation revealed that, under salt stress, OsCIPK17 transcript level was significantly induced and its protein moved from the cytosol to the tonoplast. Using both Y2H and BiFC, tonoplast-localised OsCBL2 and OsCBL3 were shown to interact with OsCIPK17. Interestingly, over-expressing salt-induced OsCBL2 or OsCBL3 in Arabidopsis led to enhanced primary root elongation under salt stress. In this process, OsCIPK17 was shown recruited to the tonoplast (similar to the effect of salt stress). Furthermore, transgenic Arabidopsis lines individually over-expressing OsCIPK17, OsCBL2 and OsCBL3 all demonstrated larger biomass and less Na + accumulation in the shoot under salt stress. All data combined suggest that OsCIPK17- OsCBL2/3 module is a major component of shoot Na+ exclusion and therefore plant salt tolerance, which is through enhanced Na + compartmentation into the vacuole in the root. OsCIPK17 and OsCBL2/3 are therefore potential genetic targets that can be used for delivering salt tolerant rice cultivars.
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Affiliation(s)
- Xin Qin
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Xiaohua Zhang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Chenyujie Ma
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Xue Yang
- Jiayuguan Ecological and Environmental Monitoring Center, Jiayuguan 735100, China
| | - Yibo Hu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Yuan Liu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Yunfei Hu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Dan Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Xiaodong Lv
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China
| | - Chao Wang
- College of Life Sciences, Shaoxing University, Shaoxing 312000, China
| | - Jianxin Shou
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; College of Life Sciences, Shaoxing University, Shaoxing 312000, China.
| | - Bo Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China; Key Laboratory of Gene Editing for Breeding, Gansu Province, Lanzhou 730000, China.
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171
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Wang D, Jiang X, Zhang W, Cao D, Ye G, Chen J, Lei Y, Wei X. Transcriptomic and metabolomic analyses reveal mechanisms underpinning resistance of Chinese wild grape to Colletotrichum viniferum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108851. [PMID: 39191040 DOI: 10.1016/j.plaphy.2024.108851] [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: 03/08/2024] [Revised: 05/09/2024] [Accepted: 06/15/2024] [Indexed: 08/29/2024]
Abstract
Grape ripe rot is one of the most important diseases caused by Colletotrichum spp. Chinese wild grape (Vitis davidii) is highly resistant to Colletotrichum viniferum infection. But mechanisms underlying the resistance remain largely unclear. In this study, transcriptomic and metabolomic responses of V. davidii to C. viniferum were studied before and after 1, 2, 4, and 6 days of inoculation. C. viniferum infection induced the expression of a large number of defense-related genes. KEGG analysis indicated that the differentially expressed genes (DEGs) were largely those involved in alpha-linolenic acid metabolism, flavonoid biosynthesis, phenylpropanoid biosynthesis, stilbenoid biosynthesis, and other defense-related metabolic pathways. Based on transcriptome data and experimental analysis, we found that jasmonic acid (JA) biosynthesis was closely related to V. davidii resistance to C. viniferum. In addition, many genes related to the synthesis of lignin and phytoalexin resveratrol are upregulated by pathogen infection, and metabolomic analysis showed that there was an increasing accumulation of resveratrol on day 6 of C. viniferum inoculation. Further analysis indicated that transcription factors, such as VdWRKY75 regulated the biosynthesis of lignin and stilbenes. A working model for V. davidii against C. viniferum infection was proposed. The infection of C. viniferum induced JA production, JA along with transcription factors regulated the biosynthesis of secondary metabolites, such as lignin and resveratrol that enhanced plant resistance to C. viniferum. This study elucidated molecular mechanisms underlying the resistance of Chinese wild V. davidii to C. viniferum which can provide a theoretical basis for grape disease resistance breeding.
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Affiliation(s)
- Dan Wang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Xiuli Jiang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Wenbin Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Dingding Cao
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Guiping Ye
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, 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
| | - Yan Lei
- Fruit Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, China.
| | - Xiangying Wei
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108, China.
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172
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Jin F, Huang W, Xie P, Wu B, Zhao Q, Fang Z. Amino acid permease OsAAP12 negatively regulates rice tillers and grain yield by transporting specific amino acids to affect nitrogen and cytokinin pathways. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112202. [PMID: 39069009 DOI: 10.1016/j.plantsci.2024.112202] [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: 05/01/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
Amino acids are necessary nutrients for the growth of Oryza sativa (rice), which can be mediated by amino acid transporter; however, our understanding of these transporters is still limited. This study found that the expression levels of amino acid permease gene OsAAP12 differed between indica and japonica rice. Altered expression of OsAAP12 negatively regulated tillering and yield in transgenic rice lines. Subcellular localization revealed that OsAAP12 was primarily localized to the plasma membrane. Moreover, it was indicated that OsAAP12 transported polar neutral amino acids asparagine (Asn), threonine (Thr), and serine (Ser) through experiments involving yeast heterologous complementation, fluorescence amino acid uptake, and amino acid content determination. Additionally, exogenous application of amino acids Asn, Thr, and Ser suppressed axillary buds outgrowth in OsAAP12 overexpression lines compared with wild-type ZH11. Conversely, the opposite trend was observed in CRISPR mutant lines. RNA-seq analysis showed that the expression patterns of genes involved in the nitrogen and cytokinin pathways were generally altered in OsAAP12 modified lines. Hormone assays indicated that OsAAP12 mutant lines accumulated cytokinins in the basal part of rice, whereas overexpression lines had the opposite effect. In summary, CRISPR mutant of OsAAP12 boosted rice tillering and grain yield by coordinating the content of amino acids and cytokinins, which has potential application value in high-yield rice breeding.
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Affiliation(s)
- Feng Jin
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China
| | - Weiting Huang
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China
| | - Pengfei Xie
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China
| | - Bowen Wu
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China
| | - Quanzhi Zhao
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China
| | - Zhongming Fang
- Institute of Rice Industry Technology Research, Key Laboratory of Functional Agriculture of Guizhou Provincial Department of Education, Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province, Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Agricultural Sciences, Guizhou University, Guiyang 550025, China.
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173
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Jin Y, Du X, Jiang C, Ji W, Yang P. Disentangling sources of gene tree discordance for Hordeum species via target-enriched sequencing assays. Mol Phylogenet Evol 2024; 199:108160. [PMID: 39019201 DOI: 10.1016/j.ympev.2024.108160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 07/04/2024] [Accepted: 07/14/2024] [Indexed: 07/19/2024]
Abstract
Hordeum is an economically and evolutionarily important genus within the Triticeae tribe of the family Poaceae, and contains 33 widely distributed and diverse species which cytologically represent four subgenomes (H, Xa, Xu and I). These wild species (except Hordeum spontaneum, which is the primary gene pool of barley) are secondary or tertiary gene-pool germplasms for barley and wheat improvement, and uncovering their complicated evolutionary relationships would benefit for future breeding programs. Here, we developed a complexity-reduced pipeline via capturing genome-wide distributed fragments via two novel target-enriched assays (HorCap v1.0 and BarPlex v1.0) in conjugation with high-throughput sequencing of the enrichments. Both assays were tested for genotyping 40 species from three genera (Hordeum, Triticum, and Aegilops) containing 82 samples 67 accessions. Either of both assays worked efficiently in genotyping, while integration of both assays can significantly improve the robustness and resolution of the Hordeum phylogenetic trees. Interestingly, the incomplete lineage sorting (ILS) was inferred for the first time as the major factor causing phylogenetic discordance among the four subgenomes, whereas in New World species (carrying I genome) post-speciation introgression events were revealed. Through revising the evolutionary relationships of the Hordeum species based on an ancestral state reconstruction for the diploids and parental donor inference for the polyploids, our results raised new queries about the Hordeum phylogeny. Moreover, both newly-developed assays are applicable in genotyping and phylogenetic analysis of Hordeum and other Triticeae wild species.
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Affiliation(s)
- Yanlong Jin
- State Key Laboratory of Crop Gene Resources and Breeding, Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization (MARA), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China; State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest AandF University, Yangling 712100, China
| | - Xin Du
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest AandF University, Yangling 712100, China
| | - Congcong Jiang
- State Key Laboratory of Crop Gene Resources and Breeding, Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization (MARA), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wanquan Ji
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest AandF University, Yangling 712100, China
| | - Ping Yang
- State Key Laboratory of Crop Gene Resources and Breeding, Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization (MARA), Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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174
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Liu X, Yang C, Dong H, Wu S, Wang G, Han X, Fan B, Shang Y, Dang C, Xie C, Wang Z. TaRLK2.4, a transgressive expression receptor like kinase, improves powdery mildew resistance in wheat. Int J Biol Macromol 2024; 277:134387. [PMID: 39111505 DOI: 10.1016/j.ijbiomac.2024.134387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 07/12/2024] [Accepted: 07/30/2024] [Indexed: 08/11/2024]
Abstract
Plants form two immune systems, pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity (ETI), to combat Blumeria graminis f. sp. tritici (Bgt) infection during the evolutionary process. In PTI, receptor-like kinases (RLKs) play important roles during pathogen infections. Based on our previous reports, there were 280 TaRLKs identified in early response to powdery mildew infection, which were divided into 34 subfamilies in this study. Differences in gene structures, cis-acting elements, and expression levels implied the function diversity of TaRLKs. TaRLK2.4, a member of LRK10L-RLKs subfamily, contained 665 amino acids, and located on the cell membrane. The main objective of this study was to investigate the role of the receptor-like kinase gene TaRLK2.4 in conferring powdery mildew resistance in wheat. Real-time quantitative PCR results indicated that TaRLK2.4 expressed during Bgt infection process, and exhibited a transgressive expression characteristic in disease resistance NILs (BJ-1). To elucidate the function of TaRLK2.4 during Bgt infection, the comprehensive analysis of virus induced gene silence and over-expression demonstrated that TaRLK2.4 promoted powdery mildew resistance positively. In summary, these results contribute to a deeper understanding of the complex and diverse biological functions of RLKs, and provide new genetic resources for wheat molecular breeding.
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Affiliation(s)
- Xiaoying Liu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Chenxiao Yang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Huixuan Dong
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Siqi Wu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Guangyu Wang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Xinyue Han
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Baoli Fan
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China
| | - Yuntao Shang
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 30087, China
| | - Chen Dang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and State Key Laboratory for Agro-biotechnology, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Chaojie Xie
- Key Laboratory of Crop Heterosis and Utilization (MOE) and State Key Laboratory for Agro-biotechnology, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zhenying Wang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China.
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175
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Li B, Mao Z, Xue J, Xing P, Wu QL. Metabolic versatility of aerobic methane-oxidizing bacteria under anoxia in aquatic ecosystems. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e70002. [PMID: 39232853 PMCID: PMC11374530 DOI: 10.1111/1758-2229.70002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 07/26/2024] [Indexed: 09/06/2024]
Abstract
The potential positive feedback between global aquatic deoxygenation and methane (CH4) emission emphasizes the importance of understanding CH4 cycling under O2-limited conditions. Increasing observations for aerobic CH4-oxidizing bacteria (MOB) under anoxia have updated the prevailing paradigm that MOB are O2-dependent; thus, clarification on the metabolic mechanisms of MOB under anoxia is critical and timely. Here, we mapped the global distribution of MOB under anoxic aquatic zones and summarized four underlying metabolic strategies for MOB under anoxia: (a) forming a consortium with oxygenic microorganisms; (b) self-generation/storage of O2 by MOB; (c) forming a consortium with non-oxygenic heterotrophic bacteria that use other electron acceptors; and (d) utilizing alternative electron acceptors other than O2. Finally, we proposed directions for future research. This study calls for improved understanding of MOB under anoxia, and underscores the importance of this overlooked CH4 sink amidst global aquatic deoxygenation.
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Affiliation(s)
- Biao Li
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Zhendu Mao
- Center for Evolution and Conservation Biology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Jingya Xue
- School of Geographical Sciences, Nanjing Normal University, Nanjing, China
| | - Peng Xing
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Qinglong L Wu
- Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
- Center for Evolution and Conservation Biology, Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing, China
- The Fuxianhu Station of Plateau Deep Lake Research, Chinese Academy of Sciences, Yuxi, China
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176
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Didaran F, Kordrostami M, Ghasemi-Soloklui AA, Pashkovskiy P, Kreslavski V, Kuznetsov V, Allakhverdiev SI. The mechanisms of photoinhibition and repair in plants under high light conditions and interplay with abiotic stressors. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 259:113004. [PMID: 39137703 DOI: 10.1016/j.jphotobiol.2024.113004] [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: 04/09/2024] [Revised: 07/20/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024]
Abstract
This review comprehensively examines the phenomenon of photoinhibition in plants, focusing mainly on the intricate relationship between photodamage and photosystem II (PSII) repair and the role of PSII extrinsic proteins and protein phosphorylation in these processes. In natural environments, photoinhibition occurs together with a suite of concurrent stress factors, including extreme temperatures, drought and salinization. Photoinhibition, primarily caused by high irradiance, results in a critical imbalance between the rate of PSII photodamage and its repair. Central to this process is the generation of reactive oxygen species (ROS), which not only impair the photosynthetic apparatus first PSII but also play a signalling role in chloroplasts and other cellulular structures. ROS generated under stress conditions inhibit the repair of photodamaged PSII by suppressing D1 protein synthesis and affecting PSII protein phosphorylation. Furthermore, this review considers how environmental stressors exacerbate PSII damage by interfering with PSII repair primarily by reducing de novo protein synthesis. In addition to causing direct damage, these stressors also contribute to ROS production by restricting CO2 fixation, which also reduces the intensity of protein synthesis. This knowledge has significant implications for agricultural practices and crop improvement under stressful conditions.
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Affiliation(s)
- Fardad Didaran
- Department of Horticulture, Aburaihan Campus, University of Tehran, Iran
| | - Mojtaba Kordrostami
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran.
| | - Ali Akbar Ghasemi-Soloklui
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran.
| | - Pavel Pashkovskiy
- К.А. Timiryazev Institute of Plant Physiology RAS, Botanicheskaya Street 35, Moscow, 127276, Russia.
| | - Vladimir Kreslavski
- Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Vladimir Kuznetsov
- К.А. Timiryazev Institute of Plant Physiology RAS, Botanicheskaya Street 35, Moscow, 127276, Russia
| | - Suleyman I Allakhverdiev
- К.А. Timiryazev Institute of Plant Physiology RAS, Botanicheskaya Street 35, Moscow, 127276, Russia
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Zhang J, Li X, Zhang C, Liu X, Wang CL. PpyLTP36 and PpyLTP39 are involved in the transmembrane transport of cuticular wax and are associated with the occurrence of pear fruit russeting. Int J Biol Macromol 2024; 278:134771. [PMID: 39151864 DOI: 10.1016/j.ijbiomac.2024.134771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 08/08/2024] [Accepted: 08/13/2024] [Indexed: 08/19/2024]
Abstract
Non-specific lipid-transfer proteins (nsLTPs) are a group of small, cysteine-rich proteins that are involved in the transport of cuticular wax and other lipid compounds. Accumulating evidence suggests that dynamic changes in cuticular waxes are strongly associated with fruit russeting, an undesirable visual quality that negatively affects consumer appeal in pears. Currently, the regulatory role of nsLTPs in cuticular wax deposition and pear fruit skin russeting remains unclear. Here, we characterized the variations of cuticular waxes in non-treated (russeted) and preharvest bagging treated (non-russeted) pear fruits throughout fruit development and confirmed that the contents of cuticular waxes were significantly negatively correlated with the occurrence of pear fruit russeting. Based on RNA-Sequencing (RNA-Seq) and quantitative real-time PCR (qRT-PCR) analyses, two nsLTP genes (PpyLTP36 and PpyLTP39) were identified, which exhibited high expression levels in non-russeted pear fruit skins and were significantly repressed during fruit skin russeting. Subcellular localization analysis demonstrated that PpyLTP36 and PpyLTP39 were localized to the plasma membrane (PM). Further, transient Virus-Induced Gene Silencing (VIGS) analyses of PpyLTP36 and PpyLTP39 in pear fruits significantly reduced cuticular wax deposition. In conclusion, PpyLTP36 and PpyLTP39 are involved in the transmembrane transport of cuticular wax and are associated with pear fruit skin russeting.
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Affiliation(s)
- Jing Zhang
- College of Horticulture and Landscape Architecture, International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, People's Republic of China
| | - Xi Li
- College of Horticulture and Landscape Architecture, International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, People's Republic of China
| | - Chen Zhang
- College of Horticulture and Landscape Architecture, International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, People's Republic of China
| | - Xiao Liu
- College of Horticulture and Landscape Architecture, International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, People's Republic of China
| | - Chun-Lei Wang
- College of Horticulture and Landscape Architecture, International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou 225009, People's Republic of China.
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178
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Gonnami M, Tominaga T, Isowa Y, Takashima S, Takeda N, Miura C, Takagi M, Egusa M, Mine A, Ifuku S, Kaminaka H. Chitin nanofibers promote rhizobial symbiotic nitrogen fixation in Lotus japonicus. Int J Biol Macromol 2024; 278:134910. [PMID: 39173792 DOI: 10.1016/j.ijbiomac.2024.134910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 07/26/2024] [Accepted: 08/18/2024] [Indexed: 08/24/2024]
Abstract
Chitin, an N-acetyl-D-glucosamine polymer, has multiple functions in living organisms, including the induction of disease resistance and growth promotion in plants. In addition, chitin oligosaccharides (COs) are used as the backbone of the signaling molecule Nod factor secreted by soil bacteria rhizobia to establish a mutual symbiosis with leguminous plants. Nod factor perception triggers host plant responses for rhizobial symbiosis. In this study, the effects of chitins on rhizobial symbiosis were examined in the leguminous plants Lotus japonicus and soybean. Chitin nanofiber (CNF), retained with polymeric structures, and COs elicited calcium spiking in L. japonicus roots expressing a nuclear-localized cameleon reporter. Shoot growth and symbiotic nitrogen fixation were significantly increased by CNF but not COs in L.japonicus and soybean. However, treatments with chitin and cellulose nanofiber, structurally similar polymers to CNF, did not affect shoot growth and nitrogen fixation in L.japonicus. Transcriptome analysis also supported the specific effects of CNF on rhizobial symbiosis in L.japonicus. Although chitins comprise the same monosaccharides and nanofibers share similar physical properties, only CNF can promote rhizobial nitrogen fixation in leguminous plants. Taking the advantages on physical properties, CNF could be a promising material for improving legume yield by enhancing rhizobial symbiosis.
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Affiliation(s)
- Mamu Gonnami
- Department of Agricultural Science, Graduate School of Sustainable Science, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Takaya Tominaga
- The United Graduate School of Agricultural Science, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Yukiko Isowa
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Sarasa Takashima
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Naoya Takeda
- School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda 669-1330, Japan
| | - Chihiro Miura
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Momoko Takagi
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Mayumi Egusa
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan
| | - Akira Mine
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo, Kyoto 606-8502, Japan
| | - Shinsuke Ifuku
- Graduate School of Engineering, Tottori University, 4-101 Koyama Minami, Tottori 680-8552, Japan; Unused Bioresource Utilization Center, Tottori University, 4-101 Koyama Minami, Tottori 680-8550, Japan
| | - Hironori Kaminaka
- Faculty of Agriculture, Tottori University, 4-101 Koyama Minami, Tottori 680-8553, Japan; Unused Bioresource Utilization Center, Tottori University, 4-101 Koyama Minami, Tottori 680-8550, Japan.
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179
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Haider S, Farrona S. Decoding histone 3 lysine methylation: Insights into seed germination and flowering. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102598. [PMID: 38986392 DOI: 10.1016/j.pbi.2024.102598] [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: 04/01/2024] [Revised: 06/01/2024] [Accepted: 06/12/2024] [Indexed: 07/12/2024]
Abstract
Histone lysine methylation is a highly conserved epigenetic modification across eukaryotes that contributes to creating different dynamic chromatin states, which may result in transcriptional changes. Over the years, an accumulated set of evidence has shown that histone methylation allows plants to align their development with their surroundings, enabling them to respond and memorize past events due to changes in the environment. In this review, we discuss the molecular mechanisms of histone methylation in plants. Writers, readers, and erasers of Arabidopsis histone methylation marks are described with an emphasis on their role in two of the most important developmental transition phases in plants, seed germination and flowering. Further, the crosstalk between different methylation marks is also discussed. An overview of the mechanisms of histone methylation modifications and their biological outcomes will shed light on existing research gaps and may provide novel perspectives to increase crop yield and resistance in the era of global climate change.
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Affiliation(s)
- Saqlain Haider
- School of Biological and Chemical Sciences, College of Science and Engineering, University of Galway, Galway H91 TK33, Ireland
| | - Sara Farrona
- School of Biological and Chemical Sciences, College of Science and Engineering, University of Galway, Galway H91 TK33, Ireland.
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180
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Chavez BG, Leite Dias S, D'Auria JC. The evolution of tropane alkaloids: Coca does it differently. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102606. [PMID: 39067083 DOI: 10.1016/j.pbi.2024.102606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024]
Abstract
It is undeniable that tropane alkaloids (TAs) have been both beneficial and detrimental to human health in the modern era. Understanding their biosynthesis is vital for using synthetic biology to engineer organisms for pharmaceutical production. The most parsimonious approaches to pathway elucidation are traditionally homology-based methods. However, this approach has largely failed for TA biosynthesis in angiosperms. In the recent decade, significant progress has been made in elucidating the TA synthesis pathway in Erythroxylum coca, highlighting the parallel development of TAs in both the Solanaceae and Erythroxylaceae families. This separate evolutionary path has uncovered substantial divergence in the TAs formed by E. coca and distinct enzymatic reactions that differ from the traditional TA biosynthetic pathway found in TA-producing nightshade plants.
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Affiliation(s)
- Benjamin Gabriel Chavez
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK Gatersleben), Seeland 06466, Germany
| | - Sara Leite Dias
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK Gatersleben), Seeland 06466, Germany
| | - John Charles D'Auria
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK Gatersleben), Seeland 06466, Germany.
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181
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Ma S, Qi Y, Ma J, Wang Y, Feng G, Huang L, Nie G, Zhang X. Functional characterization of TrGSTF15, a glutathione S-transferase gene family member, on the transport and accumulation of anthocyanins and proanthocyanidins in Trifolium repens. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109038. [PMID: 39163651 DOI: 10.1016/j.plaphy.2024.109038] [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: 05/29/2024] [Revised: 07/13/2024] [Accepted: 08/08/2024] [Indexed: 08/22/2024]
Abstract
Anthocyanins and proanthocyanidins (PAs) are important secondary metabolites in plants, high contents of which are an important goal for quality breeding of white clover (Trifolium repens). However, the involvement of glutathione S-transferase (GST) in the transport of anthocyanins and PAs remains unexplored in white clover. This study identified 153 different TrGSTs in white clover. At the transcriptional level, compared to other TrGSTFs, TrGSTF10 and TrGSTF15 are highly expressed in the 'Purple' white clover, and they may work with the anthocyanin biosynthesis structural genes CHS and CHI to contribute to pigment buildup in white clover. Subcellular localization confirmed that TrGSTF10 and TrGSTF15 are located in the cytoplasm. Additionally, molecular docking experiments showed that TrGSTF10 and TrGSTF15 have similar binding affinity with two flavonoid monomers. Overexpression of TrGSTF15 complemented the deficiency of anthocyanin coloring and PA accumulation in the Arabidopsis tt19 mutant. The initial findings of this research indicate that TrGSTF15 encodes an important transporter of anthocyanin and PA in white clover, thus providing a new perspective for the further exploration of related transport and regulatory mechanisms.
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Affiliation(s)
- Sainan Ma
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Yali Qi
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Jieyu Ma
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Yang Wang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Guangyan Feng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Linkai Huang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China
| | - Gang Nie
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China.
| | - Xinquan Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China.
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182
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Lee YJ, Jung YJ, Kim JH, Jeong YS, Ku HK, Kim BH, Kim YJ, Kim JK, Kim YS, Kim JK, Ha SH. Molecular protocol to develop β-carotene-biofortified rice events via molecular optimization. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109051. [PMID: 39197421 DOI: 10.1016/j.plaphy.2024.109051] [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: 05/18/2024] [Revised: 07/29/2024] [Accepted: 08/14/2024] [Indexed: 09/01/2024]
Abstract
Providing food with nutrition and functionality is crucial for sustaining human life. Rice (Oryza sativa L.) is a representative staple crop with high carbohydrate content but low amounts of essential amino acids, micronutrients, and carotenoids such as provitamin A. To improve the nutritional quality, rice endosperm was biofortified to accumulate carotenoids such as β-carotene through genetic engineering (i.e., using synthetic carotenoid biosynthetic genes, a nonmammalian viral polycistronic sequence, and an optimized promoter and transit peptide) and high-throughput rice transformation (approximately 300 transgenic plants per construct). To facilitate the safety assessment of genetically modified food, molecular characterization was performed to select elite lines equipped with a single intergenic insertion of T-DNA, high transgene expression, in this case leading to high carotenoid content, and with phenotypic and compositional substantial equivalence. In this study, we present β-carotene-biofortified rice event candidate lines eligible for commercial use and a disclosed molecular protocol for the development of biotech rice crops.
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Affiliation(s)
- Yeo Jin Lee
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Young Joo Jung
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Jin Hwa Kim
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Ye Sol Jeong
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Hyung-Keun Ku
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Byeong-Hoon Kim
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Ye Jin Kim
- Division of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Youn Shic Kim
- Crop Biotechnology Institute, Green Bio Science and Technology, Seoul National University, Gyeongsang, 25354, Republic of Korea
| | - Ju-Kon Kim
- Crop Biotechnology Institute, Green Bio Science and Technology, Seoul National University, Gyeongsang, 25354, Republic of Korea
| | - Sun-Hwa Ha
- Graduate School of Green-Bio Science, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
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183
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Pandey S, Divakar S, Singh A. Genome editing prospects for heat stress tolerance in cereal crops. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108989. [PMID: 39094478 DOI: 10.1016/j.plaphy.2024.108989] [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: 01/04/2024] [Revised: 06/10/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
The world population is steadily growing, exerting increasing pressure to feed in the future, which would need additional production of major crops. Challenges associated with changing and unpredicted climate (such as heat waves) are causing global food security threats. Cereal crops are a staple food for a large portion of the world's population. They are mostly affected by these environmentally generated abiotic stresses. Therefore, it is imperative to develop climate-resilient cultivars to support the sustainable production of main cereal crops (Rice, wheat, and maize). Among these stresses, heat stress causes significant losses to major cereals. These issues can be solved by comprehending the molecular mechanisms of heat stress and creating heat-tolerant varieties. Different breeding and biotechnology techniques in the last decade have been employed to develop heat-stress-tolerant varieties. However, these time-consuming techniques often lack the pace required for varietal improvement in climate change scenarios. Genome editing technologies offer precise alteration in the crop genome for developing stress-resistant cultivars. CRISPR/Cas9 (Clustered regularly interspaced short palindromic repeat/Cas9), one such genome editing platform, recently got scientists' attention due to its easy procedures. It is a powerful tool for functional genomics as well as crop breeding. This review will focus on the molecular mechanism of heat stress and different targets that can be altered using CRISPR/Cas genome editing tools to generate climate-smart cereal crops. Further, heat stress signaling and essential players have been highlighted to provide a comprehensive overview of the topic.
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Affiliation(s)
- Saurabh Pandey
- Department of Agriculture, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
| | - S Divakar
- Department of Agricultural Biotechnology Biotechnology and Molecular Biotechnology, CBSH, RPCAU, Pusa, Samastipur, Bihar, 8481253, India
| | - Ashutosh Singh
- Centre for Advanced Studies on Climate Change, RPCAU, Pusa, Bihar, 848125, India.
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184
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Gao Y, Cui Y, Li M, Kang J, Yang Q, Ma Q, Long R. Comparative proteomic discovery of salt stress response in alfalfa roots and overexpression of MsANN2 confers salt tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109033. [PMID: 39137681 DOI: 10.1016/j.plaphy.2024.109033] [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: 12/19/2023] [Revised: 07/25/2024] [Accepted: 08/08/2024] [Indexed: 08/15/2024]
Abstract
Soil salinity constrains growth, development and yield of alfalfa (Medicago sativa L.). To illustrate the molecular mechanisms responsible for salt tolerance, a comparative proteome analysis was explored to characterize protein profiles of alfalfa seedling roots exposed to 100 and 200 mM NaCl for three weeks. There were 52 differentially expressed proteins identified, among which the mRNA expressions of 12 were verified by Real-Time-PCR analysis. The results showed increase in abundance of ascorbate peroxidase, POD, CBS protein and PR-10 in salt-stressed alfalfa, suggesting an effectively antioxidant and defense systems. Alfalfa enhanced protein quality control system to refold or degrade abnormal proteins induced by salt stress through upregulation of unfolded protein response (UPR) marker PDIs and molecular chaperones (eg. HSP70, TCP-1, and GroES) as well as the ubiquitin-proteasome system (UPS) including ubiquitin ligase enzyme (E3) and proteasome subunits. Upregulation of proteins responsible for calcium signal transduction including calmodulin and annexin helped alfalfa adapt to salt stress. Specifically, annexin (MsANN2), a key Ca2+-binding protein, was selected for further characterization. The heterologous of the MsANN2 in Arabidopsis conferred salt tolerance. These results provide detailed information for salt-responsive root proteins and highlight the importance of MsANN2 in adapting to salt stress in alfalfa.
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Affiliation(s)
- Yanli Gao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, No. 666 Wusu St, Lin'an District, Hangzhou, Zhejiang, 311300, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yanjun Cui
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, No. 666 Wusu St, Lin'an District, Hangzhou, Zhejiang, 311300, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Mingna Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Junmei Kang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Qingchuan Yang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Qiaoli Ma
- College of Forestry and Prataculture, Ningxia University, No. 489 West Helanshan Road, Yinchuan, Ningxia, 750021, China
| | - Ruicai Long
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
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185
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Zhang W, Yang S, Feng Y, Liang B, Li C, Li Q, Zeng Z, Ji X, Liu J, Wang Y. The tonoplast-localized OsTIP2;1 is involved in aluminum detoxification in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109063. [PMID: 39208475 DOI: 10.1016/j.plaphy.2024.109063] [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: 07/13/2024] [Revised: 08/12/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
Aluminum (Al) stress is a significant issue in acidic soils, severely affecting crop growth and yield. Rice is notably resilient to Al toxicity, yet the internal tolerance mechanisms remain inadequately addressed. Here, we examined the role of OsTIP2;1, a tonoplast-bound intrinsic protein (TIP), in rice's internal Al detoxification. Our findings reveal that OsTIP2;1 expression was quickly and explicitly activated by Al ions in roots but not in shoots. The OsTIP2;1-GFP protein localizes to the tonoplast in plant and yeast cells. Non-functional ostip2;1 rice mutants were more vulnerable to Al toxicity. In the roots, the ostip2;1 mutants exhibited considerably lower levels of Al in the cell sap, primarily the vacuolar contents, than in the wild-type plant. Moreover, the ostip2;1 mutants showed reduced Al accumulation in the roots but increased translocation to the shoots. Heterologous expression of tonoplast-localized OsTIP2;1 in yeast led to enhanced Al tolerance, suggesting that OsTIP2;1 facilitates Al sequestration to the vacuole. These findings indicate that OsTIP2;1 mediates internal detoxification by transporting Al into the vacuole in the root and restricting its transport to above-ground tissues, thus contributing to Al resistance in rice.
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Affiliation(s)
- Weiyin Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China; School of Life Sciences, Guangzhou University, Guangzhou, Guangdong, China
| | - Shaohua Yang
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
| | - Yimeng Feng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Bixia Liang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Chune Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Qian Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Zhenshun Zeng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Xiyue Ji
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Jiping Liu
- Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA; Plant Breeding and Genetics Section, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, USA.
| | - Yuqi Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China; Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA.
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186
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Karmakar B, Sarkar S, Chakraborty R, Saha SP, Thirugnanam A, Roy PK, Roy S. Starch-based biodegradable films amended with nano-starch and tannic acid-coated nano-starch exhibit enhanced mechanical and functional attributes with antimicrobial activity. Carbohydr Polym 2024; 341:122321. [PMID: 38876723 DOI: 10.1016/j.carbpol.2024.122321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/06/2024] [Accepted: 05/24/2024] [Indexed: 06/16/2024]
Abstract
Starch-based biofilms are biodegradable, but their application is limited by lower mechanical strength and absence of antimicrobial properties. In this context, the present study attempted to unleash the potential of nanotechnology for synthesizing nano-starch (NS) and tannic acid-coated nano-starch (T-NS) for augmenting the tensile strength and antimicrobial properties of starch-based biofilms. Moreover, this study reports one of the first such attempts to improve the commercial viability of starch extracted from the corms of Amorphophallus paeoniifolius. In this study, NS and T-NS samples were first synthesized by the physical and chemical modification of the native starch (S) molecules. The NS and T-NS samples showed significantly smaller granule size, lower moisture content, and swelling power. Further, amendments with NS and T-NS samples (25 % and 50 %) to the native starch molecules were performed to obtain biofilm samples. The NSB (NS amended) and T-NSB (T-NS amended) biofilms showed comparatively higher tensile strength than SB films (100 % starch-based). The T-NSB showed greater antimicrobial activity against gram-positive and gram-negative bacteria. All the biofilms showed almost complete biodegradation in soil (in 10 days). Therefore, it can be concluded that additives like NS and T-NS can improve starch-based biofilms' mechanical strength and antimicrobial properties with considerable biodegradability.
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Affiliation(s)
- Biswanath Karmakar
- Plant Biochemistry Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal, India
| | - Sayani Sarkar
- Plant Biochemistry Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal, India
| | - Rakhi Chakraborty
- Department of Botany, Acharya Prafulla Chandra Roy Govt. College, Himachal Vihar, Matigara, Dist. Darjeeling, West Bengal, India.
| | - Shyama Prasad Saha
- Department of Microbiology, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal, India
| | - Arunachalam Thirugnanam
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Odisha, India
| | - Pranab Kumar Roy
- Department of Physics, Indian Institute of Technology Madras, Chennai, India
| | - Swarnendu Roy
- Plant Biochemistry Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal, India.
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187
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Zheng K, Yu Z, Li Y, Liu C. Cd 2+ enhancing the bromination of bisphenol A in Brassica chinensis L.: Pathways and mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:174013. [PMID: 38880131 DOI: 10.1016/j.scitotenv.2024.174013] [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: 03/23/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Traditional heavy metal pollution, such as cadmium, impacts the transformation and risks of bisphenol pollutants (like bisphenol A, BPA), in plants, especially due to the ubiquitous presence of bromide ion. Although it has been discovered that the bromination of phenolic pollutants occurs in plants, thereby increasing the associated risks, the influence and mechanisms of bromination under complex contamination conditions involving both heavy metals and phenolic compounds remain poorly understood. This study addresses the issue by exposing Brassica chinensis L. to cadmium ion (Cd2+, 25-100 μM), with the hydroponic solution containing BPA (15 mg/L) and bromide ion (0.5 mM) in this work. It was observed that Cd2+ primarily enhanced the bromination of BPA by elevating the levels of reactive oxygen species (ROS) and the activity of peroxidase (POD) in Brassica chinensis L. The variety of bromination products within Brassica chinensis L. increased as the concentration of Cd2+ rose from 25 to 100 μM. The substitution positions of bromine were determined using Gaussian calculations and mass spectrometry analysis. The toxicity of bromination products derived from BPA was observed to increase based on Ecological Structure-Activity Relationships analysis and HepG2 cytotoxicity assays. This study provides new insights into the risks and health hazards associated with cadmium pollution, particularly its role in enhancing the bromination of bisphenol pollutants in plants.
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Affiliation(s)
- Kai Zheng
- School of Environmental Science and Engineering, Shandong Key Laboratory of Environmental Processes and Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Zelian Yu
- School of Environmental Science and Engineering, Shandong Key Laboratory of Environmental Processes and Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Yujiang Li
- School of Environmental Science and Engineering, Shandong Key Laboratory of Environmental Processes and Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Chunguang Liu
- School of Environmental Science and Engineering, Shandong Key Laboratory of Environmental Processes and Health, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China; Laboratory of Marine Ecological Environment in Universities of Shandong, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China; Qingdao Key Laboratory of Marine Pollutant Prevention, Shandong University, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China; Shandong Kenli Petrochemical Group Co., Ltd., No. 1001 Shengxing Road, Kenli District, Dongying City, Shandong Province, China.
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188
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Huang Y, Xia P. Biomolecular condensates in plant cells: Mediating and integrating environmental signals and development. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112178. [PMID: 38971467 DOI: 10.1016/j.plantsci.2024.112178] [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: 04/23/2024] [Revised: 06/23/2024] [Accepted: 06/30/2024] [Indexed: 07/08/2024]
Abstract
In response to the spatiotemporal coordination of various biochemical reactions and membrane-encapsulated organelles, plants appear to provide another effective mechanism for cellular organization by phase separation that allows the internal compartmentalization of cells to form a variety of membrane-less organelles. Most of the research on phase separation has centralized in various non-plant systems, such as yeast and animal systems. Recent studies have shown a remarkable correlation between the formation of condensates in plant systems and the formation of condensates in these systems. Moreover, the last decade has made new advances in phase separation research in the context of plant biology. Here, we provide an overview of the physicochemical forces and molecular factors that drive liquid-liquid phase separation in plant cells and the biochemical characterization of condensates. We then explore new developments in phase separation research specific to plants, discussing examples of condensates found in green plants and detailing their role in plant growth and development. We propose that phase separation may be a conserved organizational mechanism in plant evolution to help plants respond rapidly and effectively to various environmental stresses as sessile organisms.
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Affiliation(s)
- Yang Huang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Pengguo Xia
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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189
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Wu H, Du PR, Miao XR, Hou RQ, Li SN, Zeeshan M, Liu JC, Huang SQ, Cheng DM, Xu HH, Zhang ZX. O-Carboxymethyl chitosan nanoparticles: A novel approach to enhance water stress tolerance in maize seedlings. Int J Biol Macromol 2024; 277:134459. [PMID: 39111471 DOI: 10.1016/j.ijbiomac.2024.134459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/20/2024] [Accepted: 08/01/2024] [Indexed: 08/11/2024]
Abstract
Water stress, a significant abiotic stressor, significantly hampers crop growth and yield, posing threat to food security. Despite the promising potential of nanoparticles (NPs) in enhancing plant stress tolerance, the precise mechanisms underlying the alleviation of water stress using O-Carboxymethyl chitosan nanoparticles (O-CMC-NPs) in maize remain elusive. In this study, we synthesized O-CMC-NPs and delved into their capacity to mitigate water stress (waterlogging and drought) in maize seedlings. Structural characterization revealed spherical O-CMC-NPs with a size of approximately 200 nm. These NPs accumulated near the seed embryo and root tip, resulting in a substantial increase in fresh and dry weights. The application of O-CMC-NPs to water-stressed maize seedlings remarkedly elevated the chlorophyll content and activity of various antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and polyphenol oxidase (PPO). The malondialdehyde (MDA) content was significantly reduced compared to the untreated control. Additionally, the expression of stress-responsive genes, such as ZmSOD, ZmCAT, ZmPOD, ZmTIFY, ZmACO, ZmPYL2, ZmNF-YC12, and ZmEREB180, were significantly upregulated in the O-CMC-NPs treated seedlings. These findings unveil the novel role of O-CMC-NPs in enhancing plant stress tolerance, suggesting their potential application in safeguarding maize seedlings under water stress conditions and facilitating the recovery from oxidative damage.
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Affiliation(s)
- Hao Wu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Peng-Rui Du
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Xiao-Ran Miao
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Rui-Quan Hou
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Sheng-Nan Li
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Muhammad Zeeshan
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Jin-Cheng Liu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Su-Qing Huang
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Dong-Mei Cheng
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Han-Hong Xu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Zhi-Xiang Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China.
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190
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Zou L, Sheng C, Xia D, Zhang J, Wei Y, Ning J. Mechanism of aroma formation in white tea treated with solar withering. Food Res Int 2024; 194:114917. [PMID: 39232537 DOI: 10.1016/j.foodres.2024.114917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/10/2024] [Accepted: 08/10/2024] [Indexed: 09/06/2024]
Abstract
Withering is a crucial process that determines the quality of white tea (WT). Solar withering (SW) is reported to contribute to the aroma quality of WT. However, the mechanism by which aroma is formed in WT subjected to SW remains unclear. In this study, through headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) and transcriptomics, we found that 13 key genes enriched in the mevalonic acid and methylerythritol phosphate pathways, such as those of 1-deoxy-D-xylulose-5-phosphate synthase and terpineol synthase, were significantly upregulated, promoting the accumulation of α-terpinolene, geraniol, and nerolidol, which imparted floral and fruity odors to WT subjected to SW. Additionally, the significant upregulation of lipoxygenases enriched in the lipoxygenase pathway promoting the accumulation of hexanol, 1-octen-3-ol, (E, Z)-3,6-nonadien-1-ol, and nonanal, which contributed to the green and fresh odor in WT subjected to SW. This study provided the first comprehensive insight into the effect mechanism of SW on aroma formation in WT.
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Affiliation(s)
- Li Zou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Caiyan Sheng
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Dongzhou Xia
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; Jiangxi Provincial Key Laboratory of Ex Situ Plant Conservation and Utilization, Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332900, China
| | - Jixin Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Yuming Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China
| | - Jingming Ning
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; School of Tea and Food Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China.
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191
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Bergman ME, Dudareva N. Plant specialized metabolism: Diversity of terpene synthases and their products. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102607. [PMID: 39053147 DOI: 10.1016/j.pbi.2024.102607] [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: 04/16/2024] [Revised: 05/29/2024] [Accepted: 07/02/2024] [Indexed: 07/27/2024]
Abstract
Terpenoids are ubiquitous to all kingdoms of life and are one of the most diverse groups of compounds, both structurally and functionally. Despite being derived from common precursors, isopentenyl diphosphate and dimethylallyl diphosphate, their exceptional diversity is partly driven by the substrate and product promiscuity of terpene synthases that produce a wide array of terpene skeletons. Plant terpene synthases can be subdivided into different subfamilies based on sequence homology and function. However, in many cases, structural architecture of the enzyme is more essential to product specificity than primary sequence alone, and distantly related terpene synthases can often mediate similar reactions. As such, the focus of this brief review is on some of the recent progress in understanding terpene synthase function and diversity.
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Affiliation(s)
- Matthew E Bergman
- Department of Biochemistry, Purdue University, 175 South University St., West Lafayette, IN 47907, USA; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, 175 South University St., West Lafayette, IN 47907, USA; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA; Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA.
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192
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Zhu GQ, Qu L, Xue HW. Casein kinase 1 AELs promote senescence by enhancing ethylene biosynthesis through phosphorylating WRKY22 transcription factor. THE NEW PHYTOLOGIST 2024; 244:116-130. [PMID: 38702992 DOI: 10.1111/nph.19785] [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: 10/03/2023] [Accepted: 04/07/2024] [Indexed: 05/06/2024]
Abstract
Leaf senescence is a complex process regulated by developmental and environmental factors, and plays a pivotal role in the development and life cycle of higher plants. Casein kinase 1 (CK1) is a highly conserved serine/threonine protein kinase in eukaryotes and functions in various cellular processes including cell proliferation, light signaling and hormone effects of plants. However, the biological function of CK1 in plant senescence remains unclear. Through systemic genetic and biochemical studies, we here characterized the function of Arabidopsis EL1-like (AEL), a CK1, in promoting leaf senescence by stimulating ethylene biosynthesis through phosphorylating transcription factor WRKY22. Seedlings lacking or overexpressing AELs presented delayed or accelerated leaf senescence, respectively. AELs interact with and phosphorylate WRKY22 at Thr57, Thr60 and Ser69 residues to enhance whose transactivation activity. Being consistent, increased or suppressed phosphorylation of WRKY22 resulted in the promoted or delayed leaf senescence. WRKY22 directly binds to promoter region and stimulates the transcription of 1-amino-cyclopropane-1-carboxylate synthase 7 gene to promote ethylene level and hence leaf senescence. Our studies demonstrated the crucial role of AEL-mediated phosphorylation in regulating ethylene biosynthesis and promoting leaf senescence by enhancing WRKY22 transactivation activity, which helps to elucidate the fine-controlled ethylene biosynthesis and regulatory network of leaf senescence.
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Affiliation(s)
- Guo-Qing Zhu
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Li Qu
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hong-Wei Xue
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
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193
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Zhang W, Tao J, Chang Y, Wang D, Wu Y, Gu C, Tao W, Wang H, Xie X, Zhang Y. Cytokinin catabolism and transport are involved in strigolactone-modulated rice tiller bud elongation fueled by phosphate and nitrogen supply. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108982. [PMID: 39089046 DOI: 10.1016/j.plaphy.2024.108982] [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: 02/29/2024] [Revised: 07/15/2024] [Accepted: 07/28/2024] [Indexed: 08/03/2024]
Abstract
Phosphate (P) and nitrogen (N) fertilization affect rice tillering, indicating that P- and N-regulated tiller growth has a crucial effect on grain yield. Cytokinins and strigolactones (SLs) promote and inhibit tiller bud outgrowth, respectively; however, the underlying mechanisms are unclear. In this study, tiller bud outgrowth and cytokinin fractions were evaluated in rice plants fertilized at different levels of P and N. Low phosphate or nitrogen (LP or LN) reduced rice tiller numbers and bud elongation, in line with low cytokinin levels in tiller buds and xylem sap as well as low TCSn:GUS expression, a sensitive cytokinin signal reporter, in the stem base. Furthermore, exogenous cytokinin (6-benzylaminopurin, 6-BA) administration restored bud length and TCSn:GUS activity in LP- and LN-treated plants to similar levels as control plants. The TCSn:GUS activity and tiller bud outgrowth were less affected by LP and LN supplies in SL-synthetic and SL-signaling mutants (d17 and d53) compared to LP- and LN-treated wild-type (WT) plants, indicating that SL modulate tiller bud elongation under LP and LN supplies by reducing the cytokinin levels in tiller buds. OsCKX9 (a cytokinin catabolism gene) transcription in buds and roots was induced by LP, LN supplies and by adding the SL analog GR24. A reduced response of cytokinin fractions to LP and LN supplies was observed in tiller buds and xylem sap of the d53 mutant compared to WT plants. These results suggest that cytokinin catabolism and transport are involved in SL-modulated rice tillering fueled by P and N fertilization.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jinyuan Tao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuyao Chang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Daojian Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yaoyao Wu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Changxiao Gu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wenqing Tao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hongmei Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaonan Xie
- Weed Science Center, Utsunomiya University, 350 Mine-machi, Utsunomiya, 321-8505, Japan
| | - Yali Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China.
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194
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Singh V, Kumar P, Pandey A, Hallan V, Pati PK. Functional characterization of WsPR-1 reveals its interplay with cytokinin and gibberellin signaling pathways. Int J Biol Macromol 2024; 278:134691. [PMID: 39142483 DOI: 10.1016/j.ijbiomac.2024.134691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 05/30/2024] [Accepted: 08/10/2024] [Indexed: 08/16/2024]
Abstract
Pathogenesis-related protein 1 (PR-1) is an antimicrobial protein involved in systemic acquired resistance (SAR) in plants, but its regulatory role and interactions with other pathways remain unclear. In this study, we functionally characterize WsPR-1 gene of Withania somnifera in Nicotiana tabacum to elucidate its role in plant defense, growth, and development. Interestingly, transgenic tobacco plants with increased levels of cytokinin (CK) and decreased gibberellins (GAs) exhibited stunted shoot growth, an underdeveloped root system, modified leaf morphology, reduced seed pod production, and delayed leaf senescence. Transcriptional analysis revealed that WsPR-1 overexpression downregulated the GA 20-oxidase (GA20ox) gene involved in GA biosynthesis while upregulating GA 2-oxidase (GA2ox), a GA catabolic enzyme. Moreover, transcript levels of FRUITFULL (FUL) and LEAFY (NFL2) flowering genes exhibited a decrease in WsPR-1 plants, which could explain the delayed flowering and reduced seed pod development in transgenic plants. Confocal microscopy confirmed increased lignin deposition in stem cross-sections of WsPR-1 transgenic plants, supported by gene expression analysis and lignin content quantification. Additionally, our findings also suggest the involvement of Knotted1-like homeobox (KNOX) gene in enhancing cytokinin levels. This study highlights PR-1's regulatory role in plant growth and development, with potential to boost crop yields and enhance resilience.
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Affiliation(s)
- Varinder Singh
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Paramdeep Kumar
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Ashutosh Pandey
- National Institute of Plant Genome Research (NIPGR), New Delhi 110067, India
| | - Vipin Hallan
- Plant Protection Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Pratap Kumar Pati
- Department of Biotechnology, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
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195
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Tang Y, Zhang H, Zhu H, Bi S, Wang X, Ji S, Ji J, Ma D, Huang C, Zhang G, Yang N, Wan F, Lü Z, Liu W. DNA methylase 1 influences temperature responses and development in the invasive pest Tuta absoluta. INSECT MOLECULAR BIOLOGY 2024; 33:503-515. [PMID: 38808749 DOI: 10.1111/imb.12919] [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: 10/17/2023] [Accepted: 04/19/2024] [Indexed: 05/30/2024]
Abstract
DNA methylase 1 (Dnmt1) is an important regulatory factor associated with biochemical signals required for insect development. It responds to changes in the environment and triggers phenotypic plasticity. Meanwhile, Tuta absoluta Meyrick (Lepidoptera: Gelechiidae)-a destructive invasive pest-can rapidly invade and adapt to different habitats; however, the role of Dnmt1 in this organism has not been elucidated. Accordingly, this study investigates the mechanism(s) underlying the rapid adaptation of Tuta absoluta to temperature stress. Potential regulatory genes were screened via RNAi (RNA interference), and the DNA methylase in Tuta absoluta was cloned by RACE (Rapid amplification of cDNA ends). TaDnmt1 was identified as a potential regulatory gene via bioinformatics; its expression was evaluated in response to temperature stress and during different development stages using real-time polymerase chain reaction. Results revealed that TaDnmt1 participates in hot/cold tolerance, temperature preference and larval development. The full-length cDNA sequence of TaDnmt1 is 3765 bp and encodes a 1254 kDa protein with typical Dnmt1 node-conserved structural features and six conserved DNA-binding active motifs. Moreover, TaDnmt1 expression is significantly altered by temperature stress treatments and within different development stages. Hence, TaDnmt1 likely contributes to temperature responses and organismal development. Furthermore, after treating with double-stranded RNA and exposing Tuta absoluta to 35°C heat shock or -12°C cold shock for 1 h, the survival rate significantly decreases; the preferred temperature is 2°C lower than that of the control group. In addition, the epidermal segments become enlarged and irregularly folded while the surface dries up. This results in a significant increase in larval mortality (57%) and a decrease in pupation (49.3%) and eclosion (50.9%) rates. Hence, TaDnmt1 contributes to temperature stress responses and temperature perception, as well as organismal growth and development, via DNA methylation regulation. These findings suggest that the rapid geographic expansion of T absoluta has been closely associated with TaDnmt1-mediated temperature tolerance. This study advances the research on 'thermos Dnmt' and provides a potential target for RNAi-driven regulation of Tuta absoluta.
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Affiliation(s)
- Yanhong Tang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Huifang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huanqing Zhu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Siyan Bi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaodi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shunxia Ji
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jianhang Ji
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dongfang Ma
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Collaborative Innovation Center for Grain Industry, College of Agriculture, Yangtze University, Jingzhou, China
| | - Cong Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guifen Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Nianwan Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, China
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhichuang Lü
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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196
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Suranjika S, Barla P, Sharma N, Dey N. A review on ubiquitin ligases: Orchestrators of plant resilience in adversity. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 347:112180. [PMID: 38964613 DOI: 10.1016/j.plantsci.2024.112180] [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: 04/09/2024] [Revised: 06/19/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Ubiquitin- proteasome system (UPS) is universally present in plants and animals, mediating many cellular processes needed for growth and development. Plants constantly defend themselves against endogenous and exogenous stimuli such as hormonal signaling, biotic stresses such as viruses, fungi, nematodes, and abiotic stresses like drought, heat, and salinity by developing complex regulatory mechanisms. Ubiquitination is a regulatory mechanism involving selective elimination and stabilization of regulatory proteins through the UPS system where E3 ligases play a central role; they can bind to the targets in a substrate-specific manner, followed by poly-ubiquitylation, and subsequent protein degradation by 26 S proteasome. Increasing evidence suggests different types of E3 ligases play important roles in plant development and stress adaptation. Herein, we summarize recent advances in understanding the regulatory roles of different E3 ligases and primarily focus on protein ubiquitination in plant-environment interactions. It also highlights the diversity and complexity of these metabolic pathways that enable plant to survive under challenging conditions. This reader-friendly review provides a comprehensive overview of E3 ligases and their substrates associated with abiotic and biotic stresses that could be utilized for future crop improvement.
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Affiliation(s)
- Sandhya Suranjika
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India; Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), KIIT Road, Patia, Bhubaneswar, Odisha, India
| | - Preeti Barla
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India
| | - Namisha Sharma
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India
| | - Nrisingha Dey
- Institute of Life Sciences (ILS), an autonomous institute under Department of Biotechnology Government of India, NALCO Square, Bhubaneswar, Odisha, India.
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Guo Y, Chen J, Liao H, Wu K, Xiao Z, Duan Q, Wang J, Shu Y. Defense of cabbages against herbivore cutworm Spodoptera litura under Cd stress and insect herbivory stress simultaneously. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124519. [PMID: 38986765 DOI: 10.1016/j.envpol.2024.124519] [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: 12/27/2023] [Revised: 06/20/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Biotic (e.g., heavy metal) and abiotic stress (e.g., insect attack) can affect plant chemical defense, but little is known about the changes in plant defense when they occur concurrently. Herein, the impacts of heavy metal cadmium (Cd) stress and insect herbivory stress on the direct and indirect defense of two cultivar cabbages of Brassica campestris, the low-Cd cultivar Lvbao701 and the high-Cd cultivar Chicaixin No.4, against the herbivore cutworm Spodoptera litura were investigated. Although 10 mg kg-1 Cd stress alone inhibited leaf secondary metabolites (total phenolics, flavonoids), it reduced the feeding rate and odor selection of S. litura towards both cultivar cabbages, especially for Lvbao701, by increasing leaf Cd content and repellent volatile organic compounds (VOCs) (6-methyl-5-hepten-2-one, 7,9-di-tert-butyl-1-oxaspiro (4,5)deca-6,9-diene-2,8-dione), and reducing soluble sugar and attractive VOCs (3-methyl-3-pentanol, 2,5-hexanedione, tetradecanal). Under 2.5 mg kg-1 Cd and herbivory stress, although leaf total phenolics and flavonoids increased significantly, the feeding rate and odor selection of S. litura towards both cultivar cabbages increased, especially for Chicaixin No.4, indicating that the chemical defense of cabbages was depressed. Therefore, Cd stress alone improved the insect resistance of cabbages, whereas herbivory stress weakened the enhanced cabbages defence by Cd stress. The low-Cd cultivar Lvbao701 presented stronger insect resistance than Chicaixin No.4, suggesting that Lvbao701 application in Cd-polluted soil can not only decrease Cd transmission to higher levels in the food chain but also reduce pest occurrence.
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Affiliation(s)
- Yeshan Guo
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jin Chen
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
| | - Huimin Liao
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Kaixuan Wu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhenggao Xiao
- Institute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Qijiao Duan
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jianwu Wang
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yinghua Shu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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198
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Wang D, Lin H, Shan Y, Song J, Zhang DD, Dai XF, Han D, Chen JY. The potential of Burkholderia gladioli KRS027 in plant growth promotion and biocontrol against Verticillium dahliae revealed by dual transcriptome of pathogen and host. Microbiol Res 2024; 287:127836. [PMID: 39018831 DOI: 10.1016/j.micres.2024.127836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/11/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Verticillium dahliae is a destructive, soil-borne pathogen that causes significant losses on numerous important dicots. Recently, beneficial microbes inhabiting the rhizosphere have been exploited and used to control plant diseases. In the present study, Burkholderia gladioli KRS027 demonstrated excellent inhibitory effects against Verticillium wilt in cotton seedlings. Plant growth and development was promoted by affecting the biosynthesis and signaling pathways of brassinosteroids (BRs), gibberellins (GAs), and auxins, consequently promoting stem elongation, shoot apical meristem, and root apical tissue division in cotton. Furthermore, based on the host transcriptional response to V. dahliae infection, it was found that KRS027 modulates the plants to maintain cell homeostasis and respond to other pathogen stress. Moreover, KRS027 induced disruption of V. dahliae cellular structures, as evidenced by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. Based on the comparative transcriptomic analysis between KRS027 treated and control group of V. dahliae, KRS027 induced substantial alterations in the transcriptome, particularly affecting genes encoding secreted proteins, small cysteine-rich proteins (SCRPs), and protein kinases. In addition, KRS027 suppressed the growth of different clonal lineages of V. dahliae strains through metabolites, and volatile organic compounds (VOCs) released by KRS027 inhibited melanin biosynthesis and microsclerotia development. These findings provide valuable insights into an alternative biocontrol strategy for Verticillium wilt, demonstrating that the antagonistic bacterium KRS027 holds promise as a biocontrol agent for promoting plant growth and managing disease occurrence.
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Affiliation(s)
- Dan Wang
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Haiping Lin
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Yujia Shan
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jian Song
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dan-Dan Zhang
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China
| | - Xiao-Feng Dai
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China
| | - Dongfei Han
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Beijing 100081, China.
| | - Jie-Yin Chen
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China.
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199
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Gull S, Ejaz S, Ali S, Ali MM, Hussain S, Sardar H, Azam M, Nawaz A, Naz S, Maqbool M. A novel edible coating based on Albizia [Albizia lebbeck (L.) Benth.] gum delays softening and maintains quality of harvested guava fruits during storage. Int J Biol Macromol 2024; 277:134096. [PMID: 39067721 DOI: 10.1016/j.ijbiomac.2024.134096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 07/18/2024] [Accepted: 07/20/2024] [Indexed: 07/30/2024]
Abstract
Guava, a commercially important fruit crop, is being grown in tropical and subtropical regions around the world. Due to the perishable nature of guava fruits, there are great losses during marketing, transport and storage. The application of edible coating is emerging as a low-cost, simple to implement and efficient method for extending the postharvest life of fresh horticultural produces, such as fruits and vegetables. This study aimed to assess the potential of Albizia gum (AZG) to improve storability and maintain the overall fruit quality of stored guava fruits. Freshly harvested guava fruits were coated with 0 % (control), 1.5 %, 3 % or 4.5 % AZG. After coating treatment, the fruits were stored at 20 ± 1 °C and 85-90 % relative humidity for 15 days. The results revealed that 4.5% AZG coating suppressed the weight loss and decay incidence up to 27 % and 36 %, respectively, as compared with control. The fruits coated with 4.5 % AZG had the maximum titratable acidity (0.40 %), ascorbic acid (104.47 mg·100 g-1), total antioxidants (118.84 mmol Trolox·100 g-1), total phenolics (285.57 mg·kg-1) and flavonoids (60.12 g·kg-1) on 15th day of storage. However, the minimum total soluble solids (11.97 %), sugar-acid ratio (29.31), relative ion leakage (68.40 %), malondialdehyde (0.11 nmol·kg-1 FW) and hydrogen peroxide (16.05 μmol·kg-1 FW) were recorded in the fruits of same treatment on 15th day of storage. Furthermore, the activities of antioxidant enzymes "i.e., superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX)" were increased under the influence of AZG coating. Consequently, as compared to uncoated fruits, AZG-coated fruits exhibited reduced activities of fruit softening enzymes "i.e., cellulase, pectin methylesterase (PME), and polygalacturonase (PG)". To sum up, the application of AZG-based edible coating could markedly improve the storage life of guavas and maintain overall fruit quality.
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Affiliation(s)
- Shaista Gull
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Shaghef Ejaz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan.
| | - Sajid Ali
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Moaaz Ali
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Sajjad Hussain
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Hasan Sardar
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Azam
- Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Aamir Nawaz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Safina Naz
- Department of Horticulture, Bahauddin Zakariya University, Multan, Pakistan
| | - Mehdi Maqbool
- Department of Horticulture, University of Poonch, Rawalakot, Pakistan
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200
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Li X, Wei L, Zhao H, Wang Y, Sun F, Wu M. Ecophysiological, transcriptomic and metabolomic analyses shed light on the response mechanism of Bruguiera gymnorhiza to upwelling stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109074. [PMID: 39213943 DOI: 10.1016/j.plaphy.2024.109074] [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: 02/22/2024] [Revised: 08/07/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Mangroves, due to their unique habitats, endure dual stressors from land to ocean and ocean to land directions. While extensive researches have been conducted on land-ocean stressors, studies on ocean-land stressors like upwelling are considerably scarce. In this study, ecophysiological, transcriptome, and metabolome analyses were conducted to determine the responses of mangrove plant (Bruguiera gymnorhiza, B. gymnorhiza) to upwelling stress. The results suggested that upwelling stress in B. gymnorhiza induces oxidative stress and membrane damage, which are mitigated by the synergistic actions of antioxidant enzymes and osmoprotectants. Transcriptomic and metabolomic analyses revealed that upregulated genes related to oxidation-reduction and carbohydrate metabolism, along with accumulated metabolites such as amino acids, lipids, phenols, and organic acids, contribute to enhancing antioxidant capacity and maintaining osmotic balance. Further analysis identified key KEGG pathways involved in the response to upwelling stress, including amino acid metabolism, carbohydrate and energy metabolism, flavonoid biosynthesis, and plant hormone signal transduction. These findings provide vital information into the multi-level response mechanisms of mangrove plants to upwelling stress.
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Affiliation(s)
- Xiaomei Li
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Guangdong Academy of Forestry, Guangzhou, 510520, China; Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangzhou, 510520, China; Guangdong Coastal Shelterbelt Forest Ecosystem National Observation and Research Station, Guangzhou, 510520, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Long Wei
- Guangdong Academy of Forestry, Guangzhou, 510520, China; Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangzhou, 510520, China; Guangdong Coastal Shelterbelt Forest Ecosystem National Observation and Research Station, Guangzhou, 510520, China
| | - Hui Zhao
- College of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yutu Wang
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Fulin Sun
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Meilin Wu
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
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