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Coquerel R, Arkoun M, Dupas Q, Leroy F, Laîné P, Etienne P. Silicon Supply Improves Nodulation and Dinitrogen Fixation and Promotes Growth in Trifolium incarnatum Subjected to a Long-Term Sulfur Deprivation. PLANTS (BASEL, SWITZERLAND) 2023; 12:2248. [PMID: 37375874 DOI: 10.3390/plants12122248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023]
Abstract
In many crops species, sulfur (S) deprivation negatively affects growth, seed yield quality and plant health. Furthermore, silicon (Si) is known to alleviate many nutritional stresses but the effects of Si supply on plants subjected to S deficiency remain unclear and poorly documented. The objective of this study was to evaluate whether Si supply would alleviate the negative effects of S deprivation on root nodulation and atmospheric dinitrogen (N2) fixation capacity in Trifolium incarnatum subjected (or not) to long-term S deficiency. For this, plants were grown for 63 days in hydroponic conditions with (500 µM) or without S and supplied (1.7 mM) or not with Si. The effects of Si on growth, root nodulation and N2 fixation and nitrogenase abundance in nodules have been measured. The most important beneficial effect of Si was observed after 63 days. Indeed, at this harvest time, a Si supply increased growth, the nitrogenase abundance in nodules and N2 fixation in S-fed and S-deprived plants while a beneficial effect on the number and total biomass of nodules was only observed in S-deprived plants. This study shows clearly for the first time that a Si supply alleviates negative effects of S deprivation in Trifolium incarnatum.
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Affiliation(s)
- Raphaël Coquerel
- Unicaen, INRAE, UMR 950 EVA, SF Normandie Végétal (FED4277), Normandie Université, 14000 Caen, France
| | - Mustapha Arkoun
- Laboratoire de Nutrition Végétale, Agro Innovation International-TIMAC AGRO, 35400 Saint-Malo, France
| | - Quentin Dupas
- Unicaen, INRAE, UMR 950 EVA, SF Normandie Végétal (FED4277), Normandie Université, 14000 Caen, France
| | - Fanny Leroy
- Plateau Technique d'Isotopie de Normandie (PLATIN'), Unité de Services EMERODE, Normandie Université, 14000 Caen, France
| | - Philippe Laîné
- Unicaen, INRAE, UMR 950 EVA, SF Normandie Végétal (FED4277), Normandie Université, 14000 Caen, France
| | - Philippe Etienne
- Unicaen, INRAE, UMR 950 EVA, SF Normandie Végétal (FED4277), Normandie Université, 14000 Caen, France
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Mondal S, Pramanik K, Panda D, Dutta D, Karmakar S, Bose B. Sulfur in Seeds: An Overview. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030450. [PMID: 35161431 PMCID: PMC8838887 DOI: 10.3390/plants11030450] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 05/30/2023]
Abstract
Sulfur is a growth-limiting and secondary macronutrient as well as an indispensable component for several cellular components of crop plants. Over the years various scientists have conducted several experiments on sulfur metabolism based on different aspects of plants. Sulfur metabolism in seeds has immense importance in terms of the different sulfur-containing seed storage proteins, the significance of transporters in seeds, the role of sulfur during the time of seed germination, etc. The present review article is based on an overview of sulfur metabolism in seeds, in respect to source to sink relationships, S transporters present in the seeds, S-regulated seed storage proteins and the importance of sulfur at the time of seed germination. Sulfur is an essential component and a decidable factor for seed yield and the quality of seeds in terms of oil content in oilseeds, storage of qualitative proteins in legumes and has a significant role in carbohydrate metabolism in cereals. In conclusion, a few future perspectives towards a more comprehensive knowledge on S metabolism/mechanism during seed development, storage and germination have also been stated.
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Affiliation(s)
- Sananda Mondal
- Department of Crop Physiology, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Kalipada Pramanik
- Department of Agronomy, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Debasish Panda
- Department of Crop Physiology, Institute of Agriculture, Visva-Bharati University, Sriniketan 731236, India;
| | - Debjani Dutta
- Department of Plant Physiology, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, India; (D.D.); (S.K.)
| | - Snehashis Karmakar
- Department of Plant Physiology, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, India; (D.D.); (S.K.)
| | - Bandana Bose
- Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India;
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Mustafa A, Athar F, Khan I, Chattha MU, Nawaz M, Shah AN, Mahmood A, Batool M, Aslam MT, Jaremko M, Abdelsalam NR, Ghareeb RY, Hassan MU. Improving crop productivity and nitrogen use efficiency using sulfur and zinc-coated urea: A review. FRONTIERS IN PLANT SCIENCE 2022; 13:942384. [PMID: 36311059 PMCID: PMC9614435 DOI: 10.3389/fpls.2022.942384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/27/2022] [Indexed: 05/14/2023]
Abstract
Nitrogen (N) is an important macro-nutrient required for crop production and is considered an important commodity for agricultural systems. Urea is a vital source of N that is used widely across the globe to meet crop N requirements. However, N applied in the form of urea is mostly lost in soil, posing serious economic and environmental issues. Therefore, different approaches such as the application of urea coated with different substances are used worldwide to reduce N losses. Urea coating is considered an imperative approach to enhance crop production and reduce the corresponding nitrogen losses along with its impact on the environment. In addition, given the serious food security challenges in meeting the current and future demands for food, the best agricultural management strategy to enhance food production have led to methods that involve coating urea with different nutrients such as sulfur (S) and zinc (Zn). Coated urea has a slow-release mechanism and remains in the soil for a longer period to meet the demand of crop plants and increases nitrogen use efficiency, growth, yield, and grain quality. These nutrient-coated urea reduce nitrogen losses (volatilization, leaching, and N2O) and save the environment from degradation. Sulfur and zinc-coated urea also reduce nutrient deficiencies and have synergetic effects with other macro and micronutrients in the crop. This study discusses the dynamics of sulfur and zinc-coated urea in soil, their impact on crop production, nitrogen use efficiency (NUE), the residual and toxic effects of coated urea, and the constraints of adopting coated fertilizers. Additionally, we also shed light on agronomic and molecular approaches to enhance NUE for better crop productivity to meet food security challenges.
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Affiliation(s)
- Ayesha Mustafa
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Fareeha Athar
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Imran Khan
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | | | - Muhammad Nawaz
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Adnan Noor Shah
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
- *Correspondence: Adnan Noor Shah
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Maria Batool
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | | | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering, Smart-Health Initiative and Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Nader R. Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, Egypt
| | - Rehab Y. Ghareeb
- Plant Protection and Biomolecular Diagnosis Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El Arab, Egypt
| | - Muhammad Umair Hassan
- Research Center Ecological Sciences, Jiangxi Agricultural University, Nanchang, China
- Muhammad Umair Hassan
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Mgidlana S, Nwahara N, Nyokong T. Photocatalytic desulfurization of dibenzothiophene using methoxy substituted asymmetrical zinc(II) phthalocyanines conjugated to metal tungstate nanomaterials. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Luo J, Havé M, Clément G, Tellier F, Balliau T, Launay-Avon A, Guérard F, Zivy M, Masclaux-Daubresse C. Integrating multiple omics to identify common and specific molecular changes occurring in Arabidopsis under chronic nitrate and sulfate limitations. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:6471-6490. [PMID: 32687580 DOI: 10.1093/jxb/eraa337] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Plants have fundamental dependences on nitrogen and sulfur and frequently have to cope with chronic limitations when their supply is sub-optimal. This study aimed at characterizing the metabolomic, proteomic, and transcriptomic changes occurring in Arabidopsis leaves under chronic nitrate (Low-N) and chronic sulfate (Low-S) limitations in order to compare their effects, determine interconnections, and examine strategies of adaptation. Metabolite profiling globally revealed opposite effects of Low-S and Low-N on carbohydrate and amino acid accumulations, whilst proteomic data showed that both treatments resulted in increases in catabolic processes, stimulation of mitochondrial and cytosolic metabolism, and decreases in chloroplast metabolism. Lower abundances of ribosomal proteins and translation factors under Low-N and Low-S corresponded with growth limitation. At the transcript level, the major and specific effect of Low-N was the enhancement of expression of defence and immunity genes. The main effect of chronic Low-S was a decrease in transcripts of genes involved in cell division, DNA replication, and cytoskeleton, and an increase in the expression of autophagy genes. This was consistent with a role of target-of-rapamycin kinase in the control of plant metabolism and cell growth and division under chronic Low-S. In addition, Low-S decreased the expression of several NLP transcription factors, which are master actors in nitrate sensing. Finally, both the transcriptome and proteome data indicated that Low-S repressed glucosinolate synthesis, and that Low-N exacerbated glucosinolate degradation. This showed the importance of glucosinolate as buffering molecules for N and S management.
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Affiliation(s)
- Jie Luo
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
- College of Horticulture and Forestry Sciences, Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, China
| | - Marien Havé
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Gilles Clément
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Frédérique Tellier
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, France
| | - Thierry Balliau
- UMR GQE- le Moulon, INRAE, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Alexandra Launay-Avon
- Université Paris-Saclay, CNRS, INRAE, Université d'Évry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
- Université de Paris, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
| | - Florence Guérard
- Université Paris-Saclay, CNRS, INRAE, Université d'Évry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
- Université de Paris, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
| | - Michel Zivy
- UMR GQE- le Moulon, INRAE, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, France
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Canales J, Uribe F, Henríquez-Valencia C, Lovazzano C, Medina J, Vidal EA. Transcriptomic analysis at organ and time scale reveals gene regulatory networks controlling the sulfate starvation response of Solanum lycopersicum. BMC PLANT BIOLOGY 2020; 20:385. [PMID: 32831040 PMCID: PMC7444261 DOI: 10.1186/s12870-020-02590-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/10/2020] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sulfur is a major component of biological molecules and thus an essential element for plants. Deficiency of sulfate, the main source of sulfur in soils, negatively influences plant growth and crop yield. The effect of sulfate deficiency on plants has been well characterized at the physiological, transcriptomic and metabolomic levels in Arabidopsis thaliana and a limited number of crop plants. However, we still lack a thorough understanding of the molecular mechanisms and regulatory networks underlying sulfate deficiency in most plants. In this work we analyzed the impact of sulfate starvation on the transcriptome of tomato plants to identify regulatory networks and key transcriptional regulators at a temporal and organ scale. RESULTS Sulfate starvation reduces the growth of roots and leaves which is accompanied by major changes in the organ transcriptome, with the response being temporally earlier in roots than leaves. Comparative analysis showed that a major part of the Arabidopsis and tomato transcriptomic response to sulfate starvation is conserved between these plants and allowed for the identification of processes specifically regulated in tomato at the transcript level, including the control of internal phosphate levels. Integrative gene network analysis uncovered key transcription factors controlling the temporal expression of genes involved in sulfate assimilation, as well as cell cycle, cell division and photosynthesis during sulfate starvation in tomato roots and leaves. Interestingly, one of these transcription factors presents a high identity with SULFUR LIMITATION1, a central component of the sulfate starvation response in Arabidopsis. CONCLUSIONS Together, our results provide the first comprehensive catalog of sulfate-responsive genes in tomato, as well as novel regulatory targets for future functional analyses in tomato and other crops.
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Affiliation(s)
- Javier Canales
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile.
| | - Felipe Uribe
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Carlos Henríquez-Valencia
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Carlos Lovazzano
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Joaquín Medina
- Centro de Biotecnología y Genómica de Plantas (CBGP), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Elena A Vidal
- Millennium Institute for Integrative Biology (iBio), Santiago, Chile.
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.
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Veliz CG, Criado MV, Galotta MF, Roberts IN, Caputo C. Regulation of senescence-associated protease genes by sulphur availability according to barley (Hordeum vulgare L.) phenological stage. ANNALS OF BOTANY 2020; 126:435-444. [PMID: 32300777 PMCID: PMC7424724 DOI: 10.1093/aob/mcaa071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND AIMS Proteases are responsible for protein degradation during leaf senescence, allowing nutrients to be redirected to sink tissues. In a previous work, we reported that sulphur deficiency produced a delay in the leaf senescence of barley (Hordeum vulgare L.) plants, at both vegetative and reproductive stages. In this work, we analyse the effect of sulphur deficiency on the expression of several genes coding for proteases of different catalytic groups, which have been strongly associated with leaf senescence. METHODS Four independent experiments were performed in order to impose low sulphur availability conditions: one of steady-state sulphur deficiency during the vegetative stage and three of sulphur starvation during vegetative and reproductive stages. KEY RESULTS Sulphur deficiency inhibited or reduced the senescence-associated induction of seven of the eight proteases analysed. Their induction, as well as senescence and phloem amino acid remobilization, could be achieved with senescence inducers such as methyl-jasmonate (a hormonal stimulus) and darkness, but with different rates of induction dependent on each gene. Sulphur deficiency also exerted an opposite effect on the expression of two cysteine-protease genes (HvSAG12 and HvLEGU) as well as on one serine-protease gene (HvSUBT) according to leaf age and plant phenological stages. All three genes were induced in green leaves but were repressed in senescent leaves of sulphur-deficient plants at the vegetative stage. At the reproductive stage, both cysteine-proteases were only repressed in senescent leaves, while the serine-protease was induced in green and senescent leaves by sulphur deficiency. CONCLUSIONS Our results highlight the relevance of adequate sulphur nutrition in order to ensure leaf senescence onset and induction of protease genes, which will consequently impact on grain protein composition and quality. In addition, our results provide evidence that leaf age, plant developmental stage and the nature of the stress modulate the sulphur responses.
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Affiliation(s)
- Cintia G Veliz
- CONICET—Universidad de Buenos Aires, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Buenos Aires, Argentina
| | - Maria Victoria Criado
- Cátedra de Microbiología, Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Biología Aplicada y Alimentos, Buenos Aires, Argentina
- CONICET—Universidad de Buenos Aires, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Buenos Aires, Argentina
| | - María Florencia Galotta
- CONICET—Universidad de Buenos Aires, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Buenos Aires, Argentina
| | - Irma N Roberts
- Cátedra de Microbiología, Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Biología Aplicada y Alimentos, Buenos Aires, Argentina
- CONICET—Universidad de Buenos Aires, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Buenos Aires, Argentina
| | - Carla Caputo
- CONICET—Universidad de Buenos Aires, Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA), Buenos Aires, Argentina
- Cátedra de Bioquímica, Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Biología Aplicada y Alimentos, Buenos Aires, Argentina
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8
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Growth, biochemical composition and photosynthetic performance of Scenedesmus acuminatus under different initial sulfur supplies. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101728] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Akmouche Y, Cheneby J, Lamboeuf M, Elie N, Laperche A, Bertheloot J, D'Hooghe P, Trouverie J, Avice JC, Etienne P, Brunel-Muguet S. Do nitrogen- and sulphur-remobilization-related parameters measured at the onset of the reproductive stage provide early indicators to adjust N and S fertilization in oilseed rape (Brassica napus L.) grown under N- and/or S-limiting supplies? PLANTA 2019; 250:2047-2062. [PMID: 31555901 DOI: 10.1007/s00425-019-03284-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 09/19/2019] [Indexed: 06/10/2023]
Abstract
Specific combinations of physiological and molecular parameters associated with N and S remobilization measured at the onset of flowering were predictive of final crop performances in oilseed rape. Oilseed rape (Brassica napus L.) is a high nitrogen (N) and sulphur (S) demanding crop. Nitrogen- and S-remobilization processes allow N and S requirements to reproductive organs to be satisfied when natural uptake is reduced, thus ensuring high yield and seed quality. The quantification of physiological and molecular indicators of early N and S remobilization could be used as management tools to correct N and S fertilization. However, the major limit of this corrective strategy is to ensure the correlation between final performances-related variables and early measured parameters. In our study, four genotypes of winter oilseed rape (OSR) were grown until seed maturity under four nutritional modalities combining high and/or low N and S supplies. Plant final performances, i.e., seed production, N- and S-harvest indexes, seed N and S use efficiencies, and early parameters related to N- or S-remobilization processes, i.e., photosynthetic leaf area, N and S leaf concentrations, leaf soluble protein and leaf sulphate concentrations, and leaf RuBisCO abundance at flowering, were measured. We demonstrated that contrasting final performances existed according to the N and S supplies. An optimal N:S ratio supply could explain the treatment-specific crop performances, thus justifying N and S concurrent managements. Specific combinations of early measured plant parameters could be used to predict final performances irrespective of the nutritional supply and the genotype. This work demonstrates the potential of physiological and molecular indicators measured at flowering to reflect the functioning of N- and S-compound remobilization and to predict yield and quality penalties. However, because the predictive models are N and S independent, instant N and S leaf analyses are required to further adjust the adequate fertilization. This study is a proof of a concept which opens prospects regarding instant diagnostic tools in the context of N and S mineral fertilization management.
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Affiliation(s)
| | - Jeanne Cheneby
- UMR Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, 21000, Dijon, France
| | - Mickael Lamboeuf
- UMR Agroécologie, AgroSup Dijon, INRA, Université Bourgogne Franche-Comté, 21000, Dijon, France
| | - Nicolas Elie
- CEMABIO3, SFR 4206 ICORE, NORMANDIE UNIV, UNICAEN, 14000, Caen, France
| | - Anne Laperche
- IGEPP, Université de Rennes 1, Agrocampus, INRA, 35340, Le Rheu, France
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Watanabe M, Hoefgen R. Sulphur systems biology-making sense of omics data. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4155-4170. [PMID: 31404467 PMCID: PMC6698701 DOI: 10.1093/jxb/erz260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 05/24/2019] [Indexed: 05/22/2023]
Abstract
Systems biology approaches have been applied over the last two decades to study plant sulphur metabolism. These 'sulphur-omics' approaches have been developed in parallel with the advancing field of systems biology, which is characterized by permanent improvements of high-throughput methods to obtain system-wide data. The aim is to obtain a holistic view of sulphur metabolism and to generate models that allow predictions of metabolic and physiological responses. Besides known sulphur-responsive genes derived from previous studies, numerous genes have been identified in transcriptomics studies. This has not only increased our knowledge of sulphur metabolism but has also revealed links between metabolic processes, thus indicating a previously unexpected complex interconnectivity. The identification of response and control networks has been supported through metabolomics and proteomics studies. Due to the complex interlacing nature of biological processes, experimental validation using targeted or systems approaches is ongoing. There is still room for improvement in integrating the findings from studies of metabolomes, proteomes, and metabolic fluxes into a single unifying concept and to generate consistent models. We therefore suggest a joint effort of the sulphur research community to standardize data acquisition. Furthermore, focusing on a few different model plant systems would help overcome the problem of fragmented data, and would allow us to provide a standard data set against which future experiments can be designed and compared.
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Affiliation(s)
- Mutsumi Watanabe
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Nara Institute of Science and Technology, Ikoma, Japan
| | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
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Poret M, Chandrasekar B, van der Hoorn RAL, Déchaumet S, Bouchereau A, Kim TH, Lee BR, Macquart F, Hara-Nishimura I, Avice JC. A Genotypic Comparison Reveals That the Improvement in Nitrogen Remobilization Efficiency in Oilseed Rape Leaves Is Related to Specific Patterns of Senescence-Associated Protease Activities and Phytohormones. FRONTIERS IN PLANT SCIENCE 2019; 10:46. [PMID: 30778361 PMCID: PMC6369165 DOI: 10.3389/fpls.2019.00046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/14/2019] [Indexed: 05/24/2023]
Abstract
Oilseed rape (Brassica napus L.) is an oleoproteaginous crop characterized by low N use efficiency (NUE) that is mainly related to a weak Nitrogen Remobilization Efficiency (NRE) during the sequential leaf senescence of the vegetative stages. Based on the hypothesis that proteolysis efficiency is crucial for the improvement of leafNRE, our objective was to characterize key senescence-associated proteolytic mechanisms of two genotypes (Ténor and Samouraï) previously identified with contrasting NREs. To reach this goal, biochemical changes, protease activities and phytohormone patterns were studied in mature leaves undergoing senescence in two genotypes with contrasting NRE cultivated in a greenhouse under limiting or ample nitrate supply. The genotype with the higher NRE (Ténor) possessed enhanced senescence processes in response to nitrate limitation, and this led to greater degradation of soluble proteins compared to the other genotype (Samouraï). This efficient proteolysis is associated with (i) an increase in serine and cysteine protease (CP) activities and (ii) the appearance of new CP activities (RD21-like, SAG12-like, RD19-like, cathepsin-B, XBCP3-like and aleurain-like proteases) during senescence induced by N limitation. Compared to Samouraï, Ténor has a higher hormonal ratio ([salicylic acid] + [abscisic acid])/([cytokinins]) that promotes senescence, particularly under low N conditions, and this is correlated with the stronger protein degradation and serine/CP activities observed during senescence. Short statement: The improvement in N recycling during leaf senescence in a genotype of Brassica napus L. characterized by a high nitrogen remobilization efficiency is related to a high phytohormonal ratio ([salicylic acid] + [abscisic acid])/([cytokinins]) that promotes leaf senescence and is correlated with an increase or the induction of specific serine and cysteine protease activities.
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Affiliation(s)
- Marine Poret
- Université de Caen Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie & Nutritions N.C.S., FED 4277 Normandie Végétal, Caen, France
| | - Balakumaran Chandrasekar
- Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, Oxford, United Kingdom
- Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | | | - Sylvain Déchaumet
- INRA, UMR 1349 Institut de Génétique, Environnement et Protection des Plantes, INRA, Agrocampus Ouest, Université de Rennes 1, Rennes, France
| | - Alain Bouchereau
- INRA, UMR 1349 Institut de Génétique, Environnement et Protection des Plantes, INRA, Agrocampus Ouest, Université de Rennes 1, Rennes, France
| | - Tae-Hwan Kim
- Department of Animal Science, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, South Korea
| | - Bok-Rye Lee
- Department of Animal Science, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, South Korea
| | - Flavien Macquart
- Université de Caen Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie & Nutritions N.C.S., FED 4277 Normandie Végétal, Caen, France
| | - Ikuko Hara-Nishimura
- Laboratory of Plant Cell Biology, Faculty of Science and Engineering, Konan University Okamoto, Kobe, Japan
| | - Jean-Christophe Avice
- Université de Caen Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie & Nutritions N.C.S., FED 4277 Normandie Végétal, Caen, France
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12
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Poisson E, Brunel-Muguet S, Kauffmann F, Trouverie J, Avice JC, Mollier A. Sensitivity analyses for improving sulfur management strategies in winter oilseed rape. PLoS One 2018; 13:e0204376. [PMID: 30235325 PMCID: PMC6147610 DOI: 10.1371/journal.pone.0204376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 09/06/2018] [Indexed: 01/18/2023] Open
Abstract
Because sulfur (S) depletion in soil results in seed yield losses and grain quality degradation, especially in high S-demanding crops such as oilseed rape (Brassica napus L.), monitoring S fertilisation has become a central issue. Crop models can be efficient tools to conduct virtual experiments under different fertilisation management strategies. Using the process-based model SuMoToRI, we aimed to analyse the impact of different S fertilisation strategies coupled with the variablility observed in major plant characteristics in oilseed rape i.e. radiation use efficiency (RUE), carbon (C) allocation to the leaves (β) and specific leaf area (SLA) on plant performance-driven variables encompassing total biomass (TDW), S in the photosynthetic leaves (QSmobile.GL) and leaf area index (LAIGL). The contrasting S supply conditions differed in the amount of S (5 levels), and the timing of application (at bolting and/or at flowering, which included a fractioned condition). For this purpose, we performed a global sensitivity analysis (GSA) and calculated two sensitivity indices i.e. the Partial Raw Correlation Coefficient (PRCC) and the Sobol index. The results showed that whatever the timing of S supply, TDW, LAIGL and QSmobile.GL increased as S input increased. For a given S supply, there was no difference in TDW, LAIGL and QSmobile.GL between a single and a fractioned supply. Moreover, delaying the supply until flowering reduced the TDW and LAIGL whereas QSmobile.GL increased. Results showed that RUE had the greatest impact on TDW under all levels of S supply and all application timings, followed by β and SLA. RUE mostly impacted on QSmobile.GL, depending on S supply conditions, whereas it was the parameter with the least impact on LAIGL. Ultimately, our results provide strong evidence of optimised S fertilisation timings and plant characteristics that will guide producers in their agricultural practices by using specific varieties under constrained S fertilisation strategies.
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Affiliation(s)
- Emilie Poisson
- UMR 950 EVA (Ecophysiologie Végétale et Agronomie), Normandie Université, UNICAEN, INRA, SFR Normandie Végétal, Caen, France
| | - Sophie Brunel-Muguet
- UMR 950 EVA (Ecophysiologie Végétale et Agronomie), Normandie Université, UNICAEN, INRA, SFR Normandie Végétal, Caen, France
- * E-mail:
| | - François Kauffmann
- UMR 6139 Laboratoire de Mathématiques Nicolas Oresme, Normandie Université, UNICAEN, CNRS, Caen, France
| | - Jacques Trouverie
- UMR 950 EVA (Ecophysiologie Végétale et Agronomie), Normandie Université, UNICAEN, INRA, SFR Normandie Végétal, Caen, France
| | - Jean-Christophe Avice
- UMR 950 EVA (Ecophysiologie Végétale et Agronomie), Normandie Université, UNICAEN, INRA, SFR Normandie Végétal, Caen, France
| | - Alain Mollier
- ISPA, Bordeaux Sciences Agro, INRA, Villenave d’Ornon, France
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13
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Effect of Sulphur Application on Photosynthesis and Biomass Accumulation of Sesame Varieties under Rainfed Conditions. AGRONOMY-BASEL 2018. [DOI: 10.3390/agronomy8080149] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Oilseeds yield response to sulphur (S) has been well investigated but the dynamics of total biomass accumulation (TBA) and partitioning by sesame plants in response to S are not well understood. This study was initiated to investigate the effects of S on sesame, in which four sesame varieties V1, SG-27; V2, SG-30; V3, SG-36; V4, SG-51 and four S treatments T1, 20; T2, 30; T3, 40; T4, 50 kg ha−1 were used. Results revealed that the leaf area index and photosynthetic rate of sesame varieties were significantly higher under T3 with V3. Similarly, S fertilization considerably increased the TBA and maximum TBA was reached at late-flowering with V3 in T3. Relative to T1, plants in T3 had 33 and 23% higher capsule and seed biomass, respectively. Furthermore, total S accumulation and distribution in different plant organs changed with growth stage, at pre-flowering and mid-flowering stage maximum S was found in the stem, whereas at late-flowering and full-maturity stage highest S was recorded in reproductive parts. These results implied that S fertilizers should be applied to agricultural fields to improve oilseed production and by selecting the appropriate and area-specific genotype we can increase sesame seed yield under rainfed conditions.
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14
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Kalaji HM, Bąba W, Gediga K, Goltsev V, Samborska IA, Cetner MD, Dimitrova S, Piszcz U, Bielecki K, Karmowska K, Dankov K, Kompała-Bąba A. Chlorophyll fluorescence as a tool for nutrient status identification in rapeseed plants. PHOTOSYNTHESIS RESEARCH 2018; 136:329-343. [PMID: 29185137 PMCID: PMC5937862 DOI: 10.1007/s11120-017-0467-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 11/23/2017] [Indexed: 05/20/2023]
Abstract
In natural conditions, plants growth and development depends on environmental conditions, including the availability of micro- and macroelements in the soil. Nutrient status should thus be examined not by establishing the effects of single nutrient deficiencies on the physiological state of the plant but by combinations of them. Differences in the nutrient content significantly affect the photochemical process of photosynthesis therefore playing a crucial role in plants growth and development. In this work, an attempt was made to find a connection between element content in (i) different soils, (ii) plant leaves, grown on these soils and (iii) changes in selected chlorophyll a fluorescence parameters, in order to find a method for early detection of plant stress resulting from the combination of nutrient status in natural conditions. To achieve this goal, a mathematical procedure was used which combines principal component analysis (a tool for the reduction of data complexity), hierarchical k-means (a classification method) and a machine-learning method-super-organising maps. Differences in the mineral content of soil and plant leaves resulted in functional changes in the photosynthetic machinery that can be measured by chlorophyll a fluorescent signals. Five groups of patterns in the chlorophyll fluorescent parameters were established: the 'no deficiency', Fe-specific deficiency, slight, moderate and strong deficiency. Unfavourable development in groups with nutrient deficiency of any kind was reflected by a strong increase in F o and ΔV/Δt 0 and decline in φ Po, φ Eo δ Ro and φ Ro. The strong deficiency group showed the suboptimal development of the photosynthetic machinery, which affects both PSII and PSI. The nutrient-deficient groups also differed in antenna complex organisation. Thus, our work suggests that the chlorophyll fluorescent method combined with machine-learning methods can be highly informative and in some cases, it can replace much more expensive and time-consuming procedures such as chemometric analyses.
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Affiliation(s)
- Hazem M Kalaji
- Institute of Technology and Life Sciences (ITP), Falenty, Al. Hrabska 3, 05-090, Raszyn, Poland
- White Hill Company, Żurawia 71/3, 15-540 Białystok, Poland
| | - Wojciech Bąba
- Department of Plant Ecology, Institute of Botany, Jagiellonian University, Lubicz 46, 31-512, Kraków, Poland.
| | - Krzysztof Gediga
- Department of Plant Nutrition, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357, Wrocław, Poland
| | - Vasilij Goltsev
- Department of Biophysics and Radiobiology, Faculty of Biology, St. Kliment Ohridski University of Sofia, 8 Dr Tzankov Blvd., 1164, Sofia, Bulgaria
| | - Izabela A Samborska
- Department of Plant Physiology, Faculty of Agriculture and Biology, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159, 02-776, Warszawa, Poland
| | - Magdalena D Cetner
- Department of Plant Physiology, Faculty of Agriculture and Biology, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159, 02-776, Warszawa, Poland
| | - Stella Dimitrova
- Department of Biophysics and Radiobiology, Faculty of Biology, St. Kliment Ohridski University of Sofia, 8 Dr Tzankov Blvd., 1164, Sofia, Bulgaria
| | - Urszula Piszcz
- Department of Plant Nutrition, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357, Wrocław, Poland
| | - Krzysztof Bielecki
- Department of Plant Nutrition, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357, Wrocław, Poland
| | - Kamila Karmowska
- Department of Plant Nutrition, Wrocław University of Environmental and Life Sciences, Grunwaldzka 53, 50-357, Wrocław, Poland
| | - Kolyo Dankov
- Department of Biophysics and Radiobiology, Faculty of Biology, St. Kliment Ohridski University of Sofia, 8 Dr Tzankov Blvd., 1164, Sofia, Bulgaria
| | - Agnieszka Kompała-Bąba
- Department of Botany and Nature Protection, University of Silesia, Jagiellońska 28, 40-032, Katowice, Poland
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15
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Proteomic and genomic responses of plants to nutritional stress. Biometals 2018; 31:161-187. [PMID: 29453655 DOI: 10.1007/s10534-018-0083-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 02/10/2018] [Indexed: 12/17/2022]
Abstract
Minerals or trace elements in small amount are essential nutrients for every plant, but when the internal concentration exceeds the threshold, these essential elements do create phytotoxicity. Plant responses to elemental stresses are very common due to different anthropogenic activities; however it is a complex phenomenon with individual characteristics for various species. To cope up with the situation, a plant produces a group of strategies both in proteomic and genomic level to overcome it. Controlling the metal stress is known to activate a multigene response resulting in the changes in various proteins, which directly affects almost all biological processes in a living cell. Therefore, proteomic and genomic approaches can be useful for elucidating the molecular responses under metal stress. For this, it is tried to provide the latest knowledge and techniques used in proteomic and genomic study during nutritional stress and is represented here in review form.
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16
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Agostini A, Palm DM, Schmitt FJ, Albertini M, Valentin MD, Paulsen H, Carbonera D. An unusual role for the phytyl chains in the photoprotection of the chlorophylls bound to Water-Soluble Chlorophyll-binding Proteins. Sci Rep 2017; 7:7504. [PMID: 28790428 PMCID: PMC5548782 DOI: 10.1038/s41598-017-07874-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 06/30/2017] [Indexed: 01/16/2023] Open
Abstract
Water-Soluble Chlorophyll Proteins (WSCPs) from Brassicaceae are non-photosynthetic proteins which tetramerize upon binding four chlorophyll (Chl) molecules. The bound Chls are highly photostable, despite the lack of bound carotenoids known, in Chl-containing photosynthetic proteins, to act as singlet oxygen and Chl triplet (3Chl) quenchers. Although the physiological function of WSCPs is still unclear, it is likely to be related to their biochemical stability and their resistance to photodegradation. To get insight into the origin of this photostability, the properties of the 3Chl generated in WSCPs upon illumination were investigated. We found that, unlike the excited singlet states, which are excitonic states, the triplet state is localized on a single Chl molecule. Moreover, the lifetime of the 3Chl generated in WSCPs is comparable to that observed in other Chl-containing systems and is reduced in presence of oxygen. In contrast to previous observations, we found that WSCP actually photosensitizes singlet oxygen with an efficiency comparable to that of Chl in organic solvent. We demonstrated that the observed resistance to photooxidation depends on the conformation of the phytyl moieties, which in WSCP are interposed between the rings of Chl dimers, hindering the access of singlet oxygen to the oxidizable sites of the pigments.
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Affiliation(s)
- Alessandro Agostini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
- Institute of Molecular Physiology, Johannes Gutenberg-University, Johannes-von-Müller-Weg 6, 55128, Mainz, Germany
| | - Daniel M Palm
- Institute of Molecular Physiology, Johannes Gutenberg-University, Johannes-von-Müller-Weg 6, 55128, Mainz, Germany
| | - Franz-Josef Schmitt
- Institute of Chemistry, Technische Universität Berlin, Straße des 17, Juni 135, 10623, Berlin, Germany
| | - Marco Albertini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Marilena Di Valentin
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy
| | - Harald Paulsen
- Institute of Molecular Physiology, Johannes Gutenberg-University, Johannes-von-Müller-Weg 6, 55128, Mainz, Germany.
| | - Donatella Carbonera
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131, Padova, Italy.
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17
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Varényiová M, Ducsay L, Ryant P. Sulphur Nutrition and its Effect on Yield and Oil Content of Oilseed Rape (Brassica Napus L.). ACTA UNIVERSITATIS AGRICULTURAE ET SILVICULTURAE MENDELIANAE BRUNENSIS 2017. [DOI: 10.11118/actaun201765020555] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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18
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Billard V, Maillard A, Coquet L, Jouenne T, Cruz F, Garcia-Mina JM, Yvin JC, Ourry A, Etienne P. Mg deficiency affects leaf Mg remobilization and the proteome in Brassica napus. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 107:337-343. [PMID: 27362297 DOI: 10.1016/j.plaphy.2016.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/16/2016] [Accepted: 06/16/2016] [Indexed: 05/06/2023]
Abstract
In order to cope with variable mineral nutrient availability, higher plants have developed numerous strategies including the remobilization of nutrients from source to sink tissues. However, such processes remain relatively unknown for magnesium (Mg), which is the third most important cation in plant tissues. Using Mg depletion of Brassica napus, we have demonstrated that Mg is remobilized from old leaves to young shoot tissues. Moreover, this study showed that Mg depletion induces modification of nutrient uptake, especially Zn and Mn. Finally, comparative proteomic analysis of old leaves (source of Mg) revealed amongst other results that some proteins requiring Mg for their functionality (isocitrate dehydrogenase for example) were up-regulated. Moreover, down-regulation of proteases suggested that mobilization of Mg from old leaves was not associated with senescence.
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Affiliation(s)
- Vincent Billard
- Normandie Université, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France
| | - Anne Maillard
- Normandie Université, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France
| | - Laurent Coquet
- Plateforme de Protéomique PISSARO, UMR6270 CNRS Faculté des Sciences de Rouen, 76821, Mont-Saint-Aignan, France
| | - Thierry Jouenne
- Plateforme de Protéomique PISSARO, UMR6270 CNRS Faculté des Sciences de Rouen, 76821, Mont-Saint-Aignan, France
| | - Florence Cruz
- Agro Innovation International, Centre Mondial d'Innovation, Groupe Roullier, 18 Avenue Franklin Roosevelt, BP 70158, 35401, Saint Malo Cedex, France
| | | | - Jean-Claude Yvin
- Agro Innovation International, Centre Mondial d'Innovation, Groupe Roullier, 18 Avenue Franklin Roosevelt, BP 70158, 35401, Saint Malo Cedex, France
| | - Alain Ourry
- Normandie Université, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France
| | - Philippe Etienne
- Normandie Université, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N, C, S, Esplanade de la Paix, CS14032, 14032, Caen Cedex 5, France.
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19
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Sun C, Chen S, Jin Y, Song H, Ruan S, Fu Z, Asad MAU, Qian H. Effects of the Herbicide Imazethapyr on Photosynthesis in PGR5- and NDH-Deficient Arabidopsis thaliana at the Biochemical, Transcriptomic, and Proteomic Levels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4497-504. [PMID: 27215288 DOI: 10.1021/acs.jafc.6b01699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Photosynthesis is a very important metabolic pathway for plant growth and crop yield. This report investigated the effect of the herbicide imazethapyr on photosynthesis in the Arabidopsis thaliana pnsB3 mutant (a defect in the NDH pathway) and pgr5 mutant (a defect in the PGR5 pathway) to determine which cyclic electron transport chain (CET) of the NDH and PGR5 pathways is more important for protecting the photosynthetic system under herbicide stress. The results showed that 20 μg/L imazethapyr markedly inhibited the growth of the three ecotypes of A. thaliana and produced more anthocyanins and reactive oxygen species (ROS), particularly in the pgr5 mutant. The chlorophyll fluorescence results showed that PSII was severely damaged in the pgr5 mutant. Additionally, the CET was significantly stimulated to protect the photosynthetic system from light damage in Wt and the pnsB3 mutant but not the pgr5 mutant. The real-time PCR analysis indicated that imazethapyr treatment considerably decreased the transcript levels of most photosynthesis-related genes in the three treated groups. Several genes in the PGR5 pathway were significantly induced in the pnsB3 mutant, but no genes in the NDH pathway were induced in the pgr5 mutant. The gene transcription analysis showed that the pgr5 mutant cannot compensate for the deficit in the PGR5 pathway by stimulating the NDH pathway, whereas the pnsB3 mutant can compensate for the deficit in the CET cycle by regulating the PGR5 pathway. The iTRAQ analyses also showed that the photosynthesis system, glycolysis, and TCA cycle suffered the most severe damage in the pgr5 mutant. All of these results showed that the PGR5 pathway is more critical for electron transfer around PSI than the NDH pathway to resist herbicide stress.
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Affiliation(s)
| | | | | | | | - Songlin Ruan
- Hangzhou Academy of Agricultural Sciences , Hangzhou 310021, P. R. of China
| | | | | | - Haifeng Qian
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences , Urumqi 830011, P. R. of China
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20
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Yıldız M, Terzi H. Proteomic analysis of chromium stress and sulfur deficiency responses in leaves of two canola (Brassica napus L.) cultivars differing in Cr(VI) tolerance. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 124:255-266. [PMID: 26546907 DOI: 10.1016/j.ecoenv.2015.10.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/17/2015] [Accepted: 10/20/2015] [Indexed: 05/19/2023]
Abstract
Sulfur (S) is an essential macronutrient for plant growth and development, and it plays an essential role in response to environmental stresses. Plants suffer with combined stress of S deficiency and hexavalent chromium [Cr(VI)] in the rhizosphere. Little is known about the impact of S deficiency on leaf metabolism of canola (Brassica napus L.) under Cr(VI) stress. Therefore, this study is the first to examine the effects of Cr(VI) stress and S deficiency in canola at a molecular level. A comparative proteomic approach was used to investigate the differences in protein abundance between Cr-tolerant NK Petrol and Cr-sensitive Sary cultivars. The germinated seeds were grown hydroponically in S-sufficient (+S) nutrient solution for 7 days and then subjected to S-deficiency (-S) for 7 days. S-deficient and +S seedlings were then exposed to 100μM Cr(VI) for 3 days. Protein patterns analyzed by two-dimensional electrophoresis (2-DE) revealed that 58 protein spots were differentially regulated by Cr(VI) stress (+S/+Cr), S-deficiency (-S/-Cr) and combined stress (-S/+Cr). Of these, 39 protein spots were identified by MALDI-TOF/TOF mass spectrometry. Differentially regulated proteins predominantly had functions not only in photosynthesis, but also in energy metabolism, stress defense, protein folding and stabilization, signal transduction, redox regulation and sulfur metabolism. Six stress defense related proteins including 2-Cys peroxiredoxin BAS1, glutathione S-transferase, ferritin-1, l-ascorbate peroxidase, thiazole biosynthetic enzyme and myrosinase-binding protein-like At3g16470 exhibited a greater increase in NK Petrol. The stress-related proteins play an important role in the detoxification of Cr(VI) and maintaining cellular homeostasis under variable S nutrition.
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Affiliation(s)
- Mustafa Yıldız
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey.
| | - Hakan Terzi
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey
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21
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Zierer W, Hajirezaei MR, Eggert K, Sauer N, von Wirén N, Pommerrenig B. Phloem-Specific Methionine Recycling Fuels Polyamine Biosynthesis in a Sulfur-Dependent Manner and Promotes Flower and Seed Development. PLANT PHYSIOLOGY 2016; 170:790-806. [PMID: 26662272 PMCID: PMC4734553 DOI: 10.1104/pp.15.00786] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 12/06/2015] [Indexed: 05/17/2023]
Abstract
The Yang or Met Cycle is a series of reactions catalyzing the recycling of the sulfur (S) compound 5'-methylthioadenosine (MTA) to Met. MTA is produced as a by-product in ethylene, nicotianamine, and polyamine biosynthesis. Whether the Met Cycle preferentially fuels one of these pathways in a S-dependent manner remained unclear so far. We analyzed Arabidopsis (Arabidopsis thaliana) mutants with defects in the Met Cycle enzymes 5-METHYLTHIORIBOSE-1-PHOSPHATE-ISOMERASE1 (MTI1) and DEHYDRATASE-ENOLASE-PHOSPHATASE-COMPLEX1 (DEP1) under different S conditions and assayed the contribution of the Met Cycle to the regeneration of S for these pathways. Neither mti1 nor dep1 mutants could recycle MTA but showed S-dependent reproductive failure, which was accompanied by reduced levels of the polyamines putrescine, spermidine, and spermine in mutant inflorescences. Complementation experiments with external application of these three polyamines showed that only the triamine spermine could specifically rescue the S-dependent reproductive defects of the mutant plants. Furthermore, expressing gene-reporter fusions in Arabidopsis showed that MTI1 and DEP1 were mainly expressed in the vasculature of all plant parts. Phloem-specific reconstitution of Met Cycle activity in mti1 and dep1 mutant plants was sufficient to rescue their S-dependent mutant phenotypes. We conclude from these analyses that phloem-specific S recycling during periods of S starvation is essential for the biosynthesis of polyamines required for flowering and seed development.
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Affiliation(s)
- Wolfgang Zierer
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
| | - Mohammad R Hajirezaei
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
| | - Kai Eggert
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
| | - Norbert Sauer
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
| | - Nicolaus von Wirén
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
| | - Benjamin Pommerrenig
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Biology, Molecular Plant Physiology, 91058 Erlangen, Germany (W.Z., N.S.); andMolecular Plant Nutrition (M.R.H., K.E., N.v.W.) and Metalloid Transport (B.P.), Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Gatersleben, Germany
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Wawrzynska A, Moniuszko G, Sirko A. Links Between Ethylene and Sulfur Nutrition-A Regulatory Interplay or Just Metabolite Association? FRONTIERS IN PLANT SCIENCE 2015; 6:1053. [PMID: 26648954 PMCID: PMC4664752 DOI: 10.3389/fpls.2015.01053] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/12/2015] [Indexed: 05/24/2023]
Abstract
Multiple reports demonstrate associations between ethylene and sulfur metabolisms, however the details of these links have not yet been fully characterized; the links might be at the metabolic and the regulatory levels. First, sulfur-containing metabolite, methionine, is a precursor of ethylene and is a rate limiting metabolite for ethylene synthesis; the methionine cycle contributes to both sulfur and ethylene metabolism. On the other hand, ethylene is involved in the complex response networks to various stresses and it is known that S deficiency leads to photosynthesis and C metabolism disturbances that might be responsible for oxidative stress. In several plant species, ethylene increases during sulfur starvation and might serve signaling purposes to initiate the process of metabolism reprogramming during adjustment to sulfur deficit. An elevated level of ethylene might result from increased activity of enzymes involved in its synthesis. It has been demonstrated that the alleviation of cadmium stress in plants by application of S seems to be mediated by ethylene formation. On the other hand, the ethylene-insensitive Nicotiana attenuata plants are impaired in sulfur uptake, reduction and metabolism, and they invest their already limited S into methionine needed for synthesis of ethylene constitutively emitted in large amounts to the atmosphere. Regulatory links of EIN3 and SLIM1 (both from the same family of transcriptional factors) involved in the regulation of ethylene and sulfur pathway, respectively, is also quite probable as well as the reciprocal modulation of both pathways on the enzyme activity levels.
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Sulfur alleviates arsenic toxicity by reducing its accumulation and modulating proteome, amino acids and thiol metabolism in rice leaves. Sci Rep 2015; 5:16205. [PMID: 26552588 PMCID: PMC4639781 DOI: 10.1038/srep16205] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 10/12/2015] [Indexed: 11/09/2022] Open
Abstract
Arsenic (As) contamination of water is a global concern and rice consumption is the biggest dietary exposure to human posing carcinogenic risks, predominantly in Asia. Sulfur (S) is involved in di-sulfide linkage in many proteins and plays crucial role in As detoxification. Present study explores role of variable S supply on rice leaf proteome, its inclination towards amino acids (AA) profile and non protein thiols under arsenite exposure. Analysis of 282 detected proteins on 2-DE gel revealed 113 differentially expressed proteins, out of which 80 were identified by MALDI-TOF-TOF. The identified proteins were mostly involved in glycolysis, TCA cycle, AA biosynthesis, photosynthesis, protein metabolism, stress and energy metabolism. Among these, glycolytic enzymes play a major role in AA biosynthesis that leads to change in AAs profiling. Proteins of glycolytic pathway, photosynthesis and energy metabolism were also validated by western blot analysis. Conclusively S supplementation reduced the As accumulation in shoot positively skewed thiol metabolism and glycolysis towards AA accumulation under AsIII stress.
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Ostaszewska-Bugajska M, Rychter AM, Juszczuk IM. Antioxidative and proteolytic systems protect mitochondria from oxidative damage in S-deficient Arabidopsis thaliana. JOURNAL OF PLANT PHYSIOLOGY 2015; 186-187:25-38. [PMID: 26339750 DOI: 10.1016/j.jplph.2015.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/15/2015] [Accepted: 07/17/2015] [Indexed: 06/05/2023]
Abstract
We examined the functioning of the antioxidative defense system in Arabidopsis thaliana under sulphur (S) deficiency with an emphasis on the role of mitochondria. In tissue extracts and in isolated mitochondria from S-deficient plants, the concentration of non-protein thiols declined but protein thiols did not change. Superoxide anion and hydrogen peroxide were accumulated in leaf blades and the generation of superoxide anion by isolated mitochondria was higher. Lower abundance of reduced (GSH) plus oxidized (GSSG) glutathione in the leaf and root tissues, and leaf mitochondria from S-deficient plants was accompanied by a decrease in the level of GSH and the changes in the GSH/GSSG ratios. In the chloroplasts, the total level of glutathione decreased. Lower levels of reduced (AsA) and oxidized (DHA) ascorbate were reflected in much higher ratios of AsA/DHA. Sulphur deficiency led to an increase in the activity of cytosolic, mitochondrial and chloroplastic antioxidative enzymes, peroxidases, catalases and superoxide dismutases. The protein carbonyl level was higher in the leaves of S-deficient plants and in the chloroplasts, while in the roots, leaf and root mitochondria it remained unchanged. Protease activity in leaf extracts of S-deficient plants was higher, but in root extracts it did not differ. The proteolytic system reflected subcellular specificity. In leaf and root mitochondria the protease activity was higher, whereas in the chloroplasts it did not change. We propose that the preferential incorporation of S to protein thiols and activation of antioxidative and proteolytic systems are likely important for the survival of S-deficient plants and that the mitochondria maintain redox homeostasis.
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Affiliation(s)
- Monika Ostaszewska-Bugajska
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Poland.
| | - Anna M Rychter
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Poland.
| | - Izabela M Juszczuk
- Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Poland.
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25
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Salbitani G, Vona V, Bottone C, Petriccione M, Carfagna S. Sulfur Deprivation Results in Oxidative Perturbation in Chlorella sorokiniana (211/8k). PLANT & CELL PHYSIOLOGY 2015; 56:897-905. [PMID: 25647328 DOI: 10.1093/pcp/pcv015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Indexed: 05/08/2023]
Abstract
Sulfur deficiency in plant cells has not been considered as a potential abiotic factor that can induce oxidative stress. We studied the antioxidant defense system of Chlorella sorokiniana cultured under sulfur (S) deficiency, imposed for a maximum period of 24 h, to evaluate the effect of an S shortage on oxidative stress. S deprivation induced an immediate (30 min) but transient increase in the intracellular H2O2 content, which suggests that S limitation can lead to a temporary redox disturbance. After 24 h, S deficiency in Chlorella cells decreased the glutathione content to <10% of the value measured in cells that were not subjected to S deprivation. Consequently, we assumed that the cellular antioxidative mechanisms could be altered by a decrease in the total glutathione content. The total ascorbate pool increased within 2 h after the initiation of S depletion, and remained high until 6 h; however, ascorbate regeneration was inhibited under limited S conditions, indicated by a significant decrease in the ascorbate/dehydroascorbate (AsA/DHA) ratios. Furthermore, ascorbate peroxidase (APX) and superoxide dismutase (SOD) were activated under S deficiency, but we assumed that these enzymes were involved in maintaining the cellular H2O2 balance for at least 4 h after the initiation of S starvation. We concluded that S deprivation triggers redox changes and induces antioxidant enzyme activities in Chlorella cells. The accumulation of total ascorbate, changes in the reduced glutathione/oxidized glutathione (GSH/GSSG) ratios and an increase in the activity of SOD and APX enzymes indicate that oxidative perturbation occurs during S deprivation.
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Affiliation(s)
- Giovanna Salbitani
- Dipartimento di Biologia, Università di Napoli Federico II, Via Foria 223, I-80139 Napoli, Italy
| | - Vincenza Vona
- Dipartimento di Biologia, Università di Napoli Federico II, Via Foria 223, I-80139 Napoli, Italy
| | - Claudia Bottone
- Dipartimento di Biologia, Università di Napoli Federico II, Via Foria 223, I-80139 Napoli, Italy
| | - Milena Petriccione
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Unità di ricerca per la Frutticoltura, Via Torrino 2, 81100 Caserta, Italy
| | - Simona Carfagna
- Dipartimento di Biologia, Università di Napoli Federico II, Via Foria 223, I-80139 Napoli, Italy
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Takahashi S, Seki Y, Uchida A, Nakayama K, Satoh H. Are tyrosine residues involved in the photoconversion of the water-soluble chlorophyll-binding protein of Chenopodium album? PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17:632-638. [PMID: 25287526 DOI: 10.1111/plb.12274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 09/29/2014] [Indexed: 06/03/2023]
Abstract
Non-photosynthetic and hydrophilic chlorophyll (Chl) proteins, called water-soluble Chl-binding proteins (WSCPs), are distributed in various species of Chenopodiaceae, Amaranthaceae, Polygonaceae and Brassicaceae. Based on their photoconvertibility, WSCPs are categorised into two classes: Class I (photoconvertible) and Class II (non-photoconvertible). Chenopodium album WSCP (CaWSCP; Class I) is able to convert the chlorin skeleton of Chl a into a bacteriochlorin-like skeleton under light in the presence of molecular oxygen. Potassium iodide (KI) is a strong inhibitor of the photoconversion. Because KI attacks tyrosine residues in proteins, tyrosine residues in CaWSCP are considered to be important amino acid residues for the photoconversion. Recently, we identified the gene encoding CaWSCP and found that the mature region of CaWSCP contained four tyrosine residues: Tyr13, Tyr14, Tyr87 and Tyr134. To gain insight into the effect of the tyrosine residues on the photoconversion, we constructed 15 mutant proteins (Y13A, Y14A, Y87A, Y134A, Y13-14A, Y13-87A, Y13-134A, Y14-87A, Y14-134A, Y87-134A, Y13-14-87A, Y13-14-134A, Y13-87-134A, Y14-87-134A and Y13-14-87-134A) using site-directed mutagenesis. Amazingly, all the mutant proteins retained not only chlorophyll-binding activity, but also photoconvertibility. Furthermore, we found that KI strongly inhibited the photoconversion of Y13-14-87-134A. These findings indicated that the four tyrosine residues are not essential for the photoconversion.
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Affiliation(s)
- S Takahashi
- Department of Biomolecular Science, Toho University, Funabashi, Chiba, Japan
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27
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Weese A, Pallmann P, Papenbrock J, Riemenschneider A. Brassica napus L. cultivars show a broad variability in their morphology, physiology and metabolite levels in response to sulfur limitations and to pathogen attack. FRONTIERS IN PLANT SCIENCE 2015; 6:9. [PMID: 25699060 PMCID: PMC4313603 DOI: 10.3389/fpls.2015.00009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 01/06/2015] [Indexed: 05/26/2023]
Abstract
Under adequate sulfur supply, plants accumulate sulfate in the vacuoles and use sulfur-containing metabolites as storage compounds. Under sulfur-limiting conditions, these pools of stored sulfur-compounds are depleted in order to balance the nitrogen to sulfur ratio for protein synthesis. Stress conditions like sulfur limitation and/or pathogen attack induce changes in the sulfate pool and the levels of sulfur-containing metabolites, which often depend on the ecotypes or cultivars. We are interested in investigating the influence of the genetic background of canola (Brassica napus) cultivars in sulfur-limiting conditions on the resistance against Verticillium longisporum. Therefore, four commercially available B. napus cultivars were analyzed. These high-performing cultivars differ in some characteristics described in their cultivar pass, such as several agronomic traits, differences in the size of the root system, and resistance to certain pathogens, such as Phoma and Verticillium. The objectives of the study were to examine and explore the patterns of morphological, physiological and metabolic diversity in these B. napus cultivars at different sulfur concentrations and in the context of plant defense. Results indicate that the root systems are influenced differently by sulfur deficiency in the cultivars. Total root dry mass and length of root hairs differ not only among the cultivars but also vary in their reaction to sulfur limitation and pathogen attack. As a sensitive indicator of stress, several parameters of photosynthetic activity determined by PAM imaging showed a broad variability among the treatments. These results were supported by thermographic analysis. Levels of sulfur-containing metabolites also showed large variations. The data were interrelated to predict the specific behavior during sulfur limitation and/or pathogen attack. Advice for farming are discussed.
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Affiliation(s)
| | - Philip Pallmann
- Institute of Biostatistics, Leibniz University HannoverHannover, Germany
| | - Jutta Papenbrock
- Institute of Botany, Leibniz University HannoverHannover, Germany
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Brunel-Muguet S, Mollier A, Kauffmann F, Avice JC, Goudier D, Sénécal E, Etienne P. SuMoToRI, an Ecophysiological Model to Predict Growth and Sulfur Allocation and Partitioning in Oilseed Rape (Brassica napus L.) Until the Onset of Pod Formation. FRONTIERS IN PLANT SCIENCE 2015; 6:993. [PMID: 26635825 PMCID: PMC4647072 DOI: 10.3389/fpls.2015.00993] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 10/29/2015] [Indexed: 05/02/2023]
Abstract
Sulfur (S) nutrition in rapeseed (Brassica napus L.) is a major concern for this high S-demanding crop, especially in the context of soil S oligotrophy. Therefore, predicting plant growth, S plant allocation (between the plant's compartments) and S pool partitioning (repartition of the mobile-S vs. non-mobile-S fractions) until the onset of reproductive phase could help in the diagnosis of S deficiencies during the early stages. For this purpose, a process-based model, SuMoToRI (Sulfur Model Toward Rapeseed Improvement), was developed up to the onset of pod formation. The key features rely on (i) the determination of the S requirements used for growth (structural and metabolic functions) through critical S dilution curves and (ii) the estimation of a mobile pool of S that is regenerated by daily S uptake and remobilization from senescing leaves. This study describes the functioning of the model and presents the model's calibration and evaluation. SuMoToRI was calibrated and evaluated with independent datasets from greenhouse experiments under contrasting S supply conditions. It is run with a small number of parameters with generic values, except in the case of the radiation use efficiency, which was shown to be modulated by S supply. The model gave satisfying predictions of the dynamics of growth, S allocation between compartments and S partitioning, such as the mobile-S fraction in the leaves, which is an indicator of the remobilization potential toward growing sinks. The mechanistic features of SuMoToRI provide a process-based framework that has enabled the description of the S remobilizing process in a species characterized by senescence during the vegetative phase. We believe that this model structure could be useful for modeling S dynamics in other arable crops that have similar senescence-related characteristics.
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Affiliation(s)
- Sophie Brunel-Muguet
- INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- Normandie UniversitéCaen, France
- UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- *Correspondence: Sophie Brunel-Muguet,
| | - Alain Mollier
- INRA, UMR 1391 ISPAVillenave d’Ornon, France
- Bordeaux Sciences Agro, UMR 1391 ISPAGradignan, France
| | - François Kauffmann
- UMR CNRS-UCBN 6139 Laboratoire de Mathématiques Nicolas Oresme, UFR des Sciences, Campus 2, Université de Caen Basse-NormandieCaen, France
| | - Jean-Christophe Avice
- INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- Normandie UniversitéCaen, France
- UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
| | - Damien Goudier
- INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- Normandie UniversitéCaen, France
- UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
| | - Emmanuelle Sénécal
- INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- Normandie UniversitéCaen, France
- UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
| | - Philippe Etienne
- INRA, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
- Normandie UniversitéCaen, France
- UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et Nutritions N.C.S.Caen, France
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29
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Kopriva S. Plant sulfur nutrition: From Sachs to Big Data. PLANT SIGNALING & BEHAVIOR 2015; 10:e1055436. [PMID: 26305261 PMCID: PMC4883835 DOI: 10.1080/15592324.2015.1055436] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 05/22/2015] [Indexed: 05/03/2023]
Abstract
Together with water and carbon dioxide plants require 14 essential mineral nutrients to finish their life cycle. The research in plant nutrition can be traced back to Julius Sachs, who was the first to experimentally prove the essentiality of mineral nutrients for plants. Among those elements Sachs showed to be essential is sulfur. Plant sulfur nutrition has been not as extensively studied as the nutrition of nitrogen and phosphate, probably because sulfur was not limiting for agriculture. However, with the reduction of atmospheric sulfur dioxide emissions sulfur deficiency has become common. The research in sulfur nutrition has changed over the years from using yeast and algae as experimental material to adopting Arabidopsis as the plant model as well as from simple biochemical measurements of individual parameters to system biology. Here the evolution of sulfur research from the times of Sachs to the current Big Data is outlined.
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Affiliation(s)
- Stanislav Kopriva
- Botanical Institute; Cluster of Excellence on Plant Sciences; University of Cologne; Cologne, Germany
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30
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Billard V, Maillard A, Garnica M, Cruz F, Garcia-Mina JM, Yvin JC, Ourry A, Etienne P. Zn deficiency in Brassica napus induces Mo and Mn accumulation associated with chloroplast proteins variation without Zn remobilization. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 86:66-71. [PMID: 25438138 DOI: 10.1016/j.plaphy.2014.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 11/04/2014] [Indexed: 06/04/2023]
Abstract
The importance of zinc (Zn) has been of little concern in human nutrition despite a strong decrease of this element in crops since the rise of high yielding varieties. For better food quality, Zn biofortification can be used, but will be optimal only if mechanisms governing Zn management are better known. Using Zn deficiency, we are able to demonstrate that Zn is not remobilized in Brassica napus (B. napus). Thus, remobilization processes should not be targeted by biofortification strategies. This study also complemented previous work by investigating leaf responses to Zn deficiency, especially from proteomic and ionomic points of view, showing for example, an increase in Manganese (Mn) content and of the Mn-dependent protein, Oxygen Evolving Enhancer.
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Affiliation(s)
- Vincent Billard
- Normandie University, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France.
| | - Anne Maillard
- Normandie University, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France.
| | - Maria Garnica
- Timac Agro Spain, Poligono de Arazuri-Orcoyen Calle C n°32, 31160 Orcoyen, Spain.
| | - Florence Cruz
- Centre de Recherche International en Agroscience, CRIAS-TAI, Groupe Roullier, 55 boulevard Jules Verger, 35800 Dinard, France.
| | | | - Jean-Claude Yvin
- Centre de Recherche International en Agroscience, CRIAS-TAI, Groupe Roullier, 55 boulevard Jules Verger, 35800 Dinard, France.
| | - Alain Ourry
- Normandie University, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France.
| | - Philippe Etienne
- Normandie University, Caen, France; UNICAEN, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France; INRA, UMR 950 Ecophysiologie Végétale, Agronomie et nutritions N, C, S, F-14032 Caen, France.
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Wipf D, Mongelard G, van Tuinen D, Gutierrez L, Casieri L. Transcriptional responses of Medicago truncatula upon sulfur deficiency stress and arbuscular mycorrhizal symbiosis. FRONTIERS IN PLANT SCIENCE 2014; 5:680. [PMID: 25520732 PMCID: PMC4251294 DOI: 10.3389/fpls.2014.00680] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 11/14/2014] [Indexed: 05/18/2023]
Abstract
Sulfur plays an essential role in plants' growth and development and in their response to various abiotic and biotic stresses despite its leachability and its very low abundance in the only form that plant roots can uptake (sulfate). It is part of amino acids, glutathione (GSH), thiols of proteins and peptides, membrane sulfolipids, cell walls and secondary products, so reduced availability can drastically alter plant growth and development. The nutritional benefits of symbiotic interactions can help the plant in case of S deficiency. In particular the arbuscular mycorrhizal (AM) interaction improves N, P, and S plant nutrition, but the mechanisms behind these exchanges are not fully known yet. Although the transcriptional changes in the leguminous model plant Medicago truncatula have been already assessed in several biotic and/or abiotic conditions, S deficiency has not been considered so far. The aim of this work is to get a first overview on S-deficiency responses in the leaf and root tissues of plants interacting with the AM fungus Rhizophagus irregularis. Several hundred genes displayed significantly different transcript accumulation levels. Annotation and GO ID association were used to identify biological processes and molecular functions affected by sulfur starvation. Beside the beneficial effects of AM interaction, plants were greatly affected by the nutritional status, showing various differences in their transcriptomic footprints. Several pathways in which S plays an important role appeared to be differentially affected according to mycorrhizal status, with a generally reduced responsiveness to S deficiency in mycorrhized plants.
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Affiliation(s)
- Daniel Wipf
- UMR 1347 Agroécologie, Pôle Interactions Plantes-Microorganismes - ERL 6300 CNRS, Université de BourgogneDijon, France
| | - Gaëlle Mongelard
- CRRBM and BIOPI EA3900, Université de Picardie Jules VerneAmiens, France
| | - Diederik van Tuinen
- Institut National de la Recherche Agronomique, UMR 1347 Agroécologie, Pôle Interactions Plantes-Microorganismes - ERL 6300 CNRSDijon, France
| | - Laurent Gutierrez
- CRRBM and BIOPI EA3900, Université de Picardie Jules VerneAmiens, France
| | - Leonardo Casieri
- UMR 1347 Agroécologie, Pôle Interactions Plantes-Microorganismes - ERL 6300 CNRS, Université de BourgogneDijon, France
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Kalaji HM, Oukarroum A, Alexandrov V, Kouzmanova M, Brestic M, Zivcak M, Samborska IA, Cetner MD, Allakhverdiev SI, Goltsev V. Identification of nutrient deficiency in maize and tomato plants by in vivo chlorophyll a fluorescence measurements. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 81:16-25. [PMID: 24811616 DOI: 10.1016/j.plaphy.2014.03.029] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 03/29/2014] [Indexed: 05/05/2023]
Abstract
The impact of some macro (Ca, S, Mg, K, N, P) and micro (Fe) nutrients deficiency on the functioning of the photosynthetic machinery in tomato (Solanum lycopersicum L.) and maize (Zea mays L.) plants grown in hydroponic cultures were investigated. Plants grown on a complete nutrient solution (control) were compared with those grown in a medium, which lacked one of macro- or microelements. The physiological state of the photosynthetic machinery in vivo was analysed after 14-days of deficient condition by the parameters of JIP-test based on fast chlorophyll a fluorescence records. In most of the nutrient-deficient samples, the decrease of photochemical efficiency, increase in non-photochemical dissipation and decrease of the number of active photosystem II (PSII) reaction centres were observed. However, lack of individual nutrients also had nutrient-specific effects on the photochemical processes. In Mg and Ca-deficient plants, the most severe decrease in electron donation by oxygen evolving complex (OEC) was indicated. Sulphur deficiency caused limitation of electron transport beyond PSI, probably due to decrease in the PSI content or activity of PSI electron acceptors; in contrary, Ca deficiency had an opposite effect, where the PSII activity was affected much more than PSI. Despite the fact that clear differences in nutrient deficiency responses between tomato and maize plants were observed, our results indicate that some of presented fluorescence parameters could be used as fluorescence phenotype markers. The principal component analysis of selected JIP-test parameters was presented as a possible species-specific approach to identify/predict the nutrient deficiency using the fast chlorophyll fluorescence records.
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Affiliation(s)
- Hazem M Kalaji
- Department of Plant Physiology, Warsaw University of Life Sciences SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Abdallah Oukarroum
- Department of Chemistry and Biochemistry, University of Québec in Montréal, Montréal, Quebec, C.P. 8888, Succ. Centre-Ville, H3C 3P8 Canada
| | - Vladimir Alexandrov
- Department of Biophysics and Radiobiology, University of Sofia, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
| | - Margarita Kouzmanova
- Department of Biophysics and Radiobiology, University of Sofia, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
| | - Marian Brestic
- Department of Plant Physiology, Slovak Agricultural University, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Marek Zivcak
- Department of Plant Physiology, Slovak Agricultural University, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
| | - Izabela A Samborska
- Department of Plant Physiology, Warsaw University of Life Sciences SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Magdalena D Cetner
- Department of Plant Physiology, Warsaw University of Life Sciences SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Suleyman I Allakhverdiev
- Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, Moscow 127276, Russia; Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia.
| | - Vasilij Goltsev
- Department of Biophysics and Radiobiology, University of Sofia, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria.
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D'Hooghe P, Dubousset L, Gallardo K, Kopriva S, Avice JC, Trouverie J. Evidence for proteomic and metabolic adaptations associated with alterations of seed yield and quality in sulfur-limited Brassica napus L. Mol Cell Proteomics 2014; 13:1165-83. [PMID: 24554741 DOI: 10.1074/mcp.m113.034215] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In Brassica napus, seed yield and quality are related to sulfate availability, but the seed metabolic changes in response to sulfate limitation remain largely unknown. To address this question, proteomics and biochemical studies were carried out on mature seeds obtained from plants grown under low sulfate applied at the bolting (LS32), early flowering (LS53), or start of pod filling (LS70) stage. The protein quality of all low-sulfate seeds was reduced and associated with a reduction of S-rich seed storage protein accumulation (as Cruciferin Cru4) and an increase of S-poor seed storage protein (as Cruciferin BnC1). This compensation allowed the protein content to be maintained in LS70 and LS53 seeds but was not sufficient to maintain the protein content in LS32 seeds. The lipid content and quality of LS53 and LS32 seeds were also affected, and these effects were primarily associated with a reduction of C18-derivative accumulation. Proteomics changes related to lipid storage, carbohydrate metabolism, and energy (reduction of caleosins, phosphoglycerate kinase, malate synthase, ATP-synthase β-subunit, and thiazole biosynthetic enzyme THI1 and accumulation of β-glucosidase and citrate synthase) provide insights into processes that may contribute to decreased oil content and altered lipid composition (in favor of long-chain fatty acids in LS53 and LS32 seeds). These data indicate that metabolic changes associated with S limitation responses affect seed storage protein composition and lipid quality. Proteins involved in plant stress response, such as dehydroascorbate reductase and Cu/Zn-superoxide dismutase, were also accumulated in LS53 and LS32 seeds, and this might be a consequence of reduced glutathione content under low S availability. LS32 treatment also resulted in (i) reduced germination vigor, as evidenced by lower germination indexes, (ii) reduced seed germination capacity, related to a lower seed viability, and (iii) a strong decrease of glyoxysomal malate synthase, which is essential for the use of fatty acids during seedling establishment.
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Girondé A, Dubousset L, Trouverie J, Etienne P, Avice JC. The impact of sulfate restriction on seed yield and quality of winter oilseed rape depends on the ability to remobilize sulfate from vegetative tissues to reproductive organs. FRONTIERS IN PLANT SCIENCE 2014; 5:695. [PMID: 25566272 PMCID: PMC4269117 DOI: 10.3389/fpls.2014.00695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 11/22/2014] [Indexed: 05/02/2023]
Abstract
Our current knowledge about sulfur (S) management by winter oilseed rape to satisfy the S demand of developing seeds is still scarce, particularly in relation to S restriction. Our goals were to determine the physiological processes related to S use efficiency that led to maintain the seed yield and quality when S limitation occurred at the bolting or early flowering stages. To address these questions, a pulse-chase (34)SO(2-) 4 labeling method was carried out in order to study the S fluxes from uptake and remobilization at the whole plant level. In response of S limitation at the bolting or early flowering stages, the leaves are the most important source organ for S remobilization during reproductive stages. By combining (34)S-tracer with biochemical fractionation in order to separate sulfate from other S-compounds, it appeared that sulfate was the main form of S remobilized in leaves at reproductive stages and that tonoplastic SULTR4-type transporters were specifically involved in the sulfate remobilisation in case of low S availability. In response to S limitation at the bolting stage, the seed yield and quality were dramatically reduced compared to control plants. These data suggest that the increase of both S remobilization from source leaves and the root proliferation in order to maximize sulfate uptake capacities, were not sufficient to maintain the seed yield and quality. When S limitation occurred at the early flowering stage, oilseed rape can optimize the mobilization of sulfate reserves from vegetative organs (leaves and stem) to satisfy the demand of seeds and maintain the seed yield and quality. Our study also revealed that the stem may act as a transient storage organ for remobilized S coming from source leaves before its utilization by seeds. The physiological traits (S remobilization, root proliferation, transient S storage in stem) observed under S limitation could be used in breeding programs to select oilseed rape genotypes with high S use efficiency.
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Affiliation(s)
- Alexandra Girondé
- Normandie UniversityCaen, France
- Université de Caen Basse Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- Institut National de la Recherche Agronomique, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
| | - Lucie Dubousset
- Normandie UniversityCaen, France
- Université de Caen Basse Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- Institut National de la Recherche Agronomique, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
| | - Jacques Trouverie
- Normandie UniversityCaen, France
- Université de Caen Basse Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- Institut National de la Recherche Agronomique, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
| | - Philippe Etienne
- Normandie UniversityCaen, France
- Université de Caen Basse Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- Institut National de la Recherche Agronomique, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
| | - Jean-Christophe Avice
- Normandie UniversityCaen, France
- Université de Caen Basse Normandie, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- Institut National de la Recherche Agronomique, UMR INRA–UCBN 950 Ecophysiologie Végétale, Agronomie and Nutritions N.C.S.Caen, France
- *Correspondence: Jean-Christophe Avice, UMR INRA–UCBN 950 EVA, Ecophysiologie Végétale, Agronomie and Nutritions N.C.S., Université de Caen Basse-Normandie, Esplanade de la Paix, F-14032 Caen, France e-mail:
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35
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Zuber H, Poignavent G, Le Signor C, Aimé D, Vieren E, Tadla C, Lugan R, Belghazi M, Labas V, Santoni AL, Wipf D, Buitink J, Avice JC, Salon C, Gallardo K. Legume adaptation to sulfur deficiency revealed by comparing nutrient allocation and seed traits in Medicago truncatula. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2013; 76:982-96. [PMID: 24118112 DOI: 10.1111/tpj.12350] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 09/27/2013] [Accepted: 10/08/2013] [Indexed: 05/11/2023]
Abstract
Reductions in sulfur dioxide emissions and the use of sulfur-free mineral fertilizers are decreasing soil sulfur levels and threaten the adequate fertilization of most crops. To provide knowledge regarding legume adaptation to sulfur restriction, we subjected Medicago truncatula, a model legume species, to sulfur deficiency at various developmental stages, and compared the yield, nutrient allocation and seed traits. This comparative analysis revealed that sulfur deficiency at the mid-vegetative stage decreased yield and altered the allocation of nitrogen and carbon to seeds, leading to reduced levels of major oligosaccharides in mature seeds, whose germination was dramatically affected. In contrast, during the reproductive period, sulfur deficiency had little influence on yield and nutrient allocation, but the seeds germinated slowly and were characterized by low levels of a biotinylated protein, a putative indicator of germination vigor that has not been previously related to sulfur nutrition. Significantly, plants deprived of sulfur at an intermediary stage (flowering) adapted well by remobilizing nutrients from source organs to seeds, ensuring adequate quantities of carbon and nitrogen in seeds. This efficient remobilization of photosynthates may be explained by vacuolar sulfate efflux to maintain leaf metabolism throughout reproductive growth, as suggested by transcript and metabolite profiling. The seeds from these plants, deprived of sulfur at the floral transition, contained normal levels of major oligosaccharides but their germination was delayed, consistent with low levels of sucrose and the glycolytic enzymes required to restart seed metabolism during imbibition. Overall, our findings provide an integrative view of the legume response to sulfur deficiency.
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Affiliation(s)
- Hélène Zuber
- Institut National de la Recherche Agronomique, UMR 1347 Agroécologie, BP 86510, F-21000, Dijon, France
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36
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Takahashi S, Yanai H, Oka-Takayama Y, Zanma-Sohtome A, Fujiyama K, Uchida A, Nakayama K, Satoh H. Molecular cloning, characterization and analysis of the intracellular localization of a water-soluble chlorophyll-binding protein (WSCP) from Virginia pepperweed (Lepidium virginicum), a unique WSCP that preferentially binds chlorophyll b in vitro. PLANTA 2013; 238:1065-1080. [PMID: 23995835 DOI: 10.1007/s00425-013-1952-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 08/21/2013] [Indexed: 06/02/2023]
Abstract
Various plants possess non-photosynthetic, hydrophilic chlorophyll (Chl) proteins called water-soluble Chl-binding proteins (WSCPs). WSCPs are categorized into two classes; Class I (photoconvertible type) and Class II (non-photoconvertible type). Among Class II WSCPs, only Lepidium virginicum WSCP (LvWSCP) exhibits a low Chl a/b ratio compared with that found in the leaf. Although the physicochemical properties of LvWSCP have been characterized, its molecular properties have not yet been documented. Here, we report the characteristics of the LvWSCP gene, the biochemical properties of a recombinant LvWSCP, and the intracellular localization of LvWSCP. The cloned LvWSCP gene possesses a 669-bp open reading frame. Matrix-assisted laser desorption ionization time-of-flight mass spectrometry analysis revealed that the precursor of LvWSCP contains both N- and C-terminal extension peptides. RT-PCR analysis revealed that LvWSCP was transcribed in various tissues, with the levels being higher in developing tissues. A recombinant LvWSCP and hexa-histidine fusion protein (LvWSCP-His) could remove Chls from the thylakoid in aqueous solution and showed an absorption spectrum identical to that of native LvWSCP. Although LvWSCP-His could bind both Chl a and Chl b, it bound almost exclusively to Chl b when reconstituted in 40 % methanol. To clarify the intracellular targeting functions of the N- and C-terminal extension peptides, we constructed transgenic Arabidopsis thaliana lines expressing the Venus protein fused with the LvWSCP N- and/or C-terminal peptides, as well as Venus fused at the C-terminus of LvWSCP. The results showed that the N-terminal peptide functioned in ER body targeting, while the C-terminal sequence did not act as a trailer peptide.
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Affiliation(s)
- Shigekazu Takahashi
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Haruna Yanai
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Yuko Oka-Takayama
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Aya Zanma-Sohtome
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Kosaku Fujiyama
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Akira Uchida
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Katsumi Nakayama
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan
| | - Hiroyuki Satoh
- Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan.
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