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Saikia B, S R, Debbarma J, Maharana J, Sastry GN, Chikkaputtaiah C. CRISPR/Cas9-based genome editing and functional analysis of SlHyPRP1 and SlDEA1 genes of Solanum lycopersicum L. in imparting genetic tolerance to multiple stress factors. FRONTIERS IN PLANT SCIENCE 2024; 15:1304381. [PMID: 38371406 PMCID: PMC10869523 DOI: 10.3389/fpls.2024.1304381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/15/2024] [Indexed: 02/20/2024]
Abstract
CRISPR/Cas is a breakthrough genome editing system because of its precision, target specificity, and efficiency. As a speed breeding system, it is more robust than the conventional breeding and biotechnological approaches for qualitative and quantitative trait improvement. Tomato (Solanum lycopersicum L.) is an economically important crop, but its yield and productivity have been severely impacted due to different abiotic and biotic stresses. The recently identified SlHyPRP1 and SlDEA1 are two potential negative regulatory genes in response to different abiotic (drought and salinity) and biotic stress (bacterial leaf spot and bacterial wilt) conditions in S. lycopersicum L. The present study aimed to evaluate the drought, salinity, bacterial leaf spot, and bacterial wilt tolerance response in S. lycopersicum L. crop through CRISPR/Cas9 genome editing of SlHyPRP1 and SlDEA1 and their functional analysis. The transient single- and dual-gene SlHyPRP1 and SlDEA1 CRISPR-edited plants were phenotypically better responsive to multiple stress factors taken under the study. The CRISPR-edited SlHyPRP1 and SlDEA1 plants showed a higher level of chlorophyll and proline content compared to wild-type (WT) plants under abiotic stress conditions. Reactive oxygen species accumulation and the cell death count per total area of leaves and roots under biotic stress were less in CRISPR-edited SlHyPRP1 and SlDEA1 plants compared to WT plants. The study reveals that the combined loss-of-function of SlHyPRP1 along with SlDEA1 is essential for imparting significant multi-stress tolerance (drought, salinity, bacterial leaf spot, and bacterial wilt) in S. lycopersicum L. The main feature of the study is the detailed genetic characterization of SlDEA1, a poorly studied 8CM family gene in multi-stress tolerance, through the CRISPR/Cas9 gene editing system. The study revealed the key negative regulatory role of SlDEA1 that function together as an anchor gene with SlHyPRP1 in imparting multi-stress tolerance in S. lycopersicum L. It was interesting that the present study also showed that transient CRISPR/Cas9 editing events of SlHyPRP1 and SlDEA1 genes were successfully replicated in stably generated parent-genome-edited line (GEd0) and genome-edited first-generation lines (GEd1) of S. lycopersicum L. With these upshots, the study's key findings demonstrate outstanding value in developing sustainable multi-stress tolerance in S. lycopersicum L. and other crops to cope with climate change.
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Affiliation(s)
- Banashree Saikia
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Remya S
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, India
| | - Johni Debbarma
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Jitendra Maharana
- Distributed Information Centre (DIC), Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, India
| | - G. Narahari Sastry
- Advanced Computational and Data Science Division, CSIR-NEIST, Jorhat, Assam, India
| | - Channakeshavaiah Chikkaputtaiah
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
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Zhou H, Su M, Du J, Zhang X, Li X, Zhang M, Hu Y, Huan C, Ye Z. Crucial roles of sorbitol metabolism and energy status in the chilling tolerance of yellow peach. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 204:108092. [PMID: 37852068 DOI: 10.1016/j.plaphy.2023.108092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/27/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
In this study, we compared sorbitol metabolism, energy metabolism, and CI development in yellow peach fruit at 1 °C (less susceptible to CI) and 8 °C (more susceptible to CI) storage to elucidate potential connections between them. The results indicated that storage at 1 °C effectively maintained the textural quality of yellow peach fruit and delayed the onset of CI by 12 days compared to 8 °C. This positive effect might be attributable to 1 °C storage maintaining higher sorbitol content throughout the storage duration, thus sustaining the higher adenosine triphosphate (ATP) level and energy charge. The regulation of sorbitol accumulation by 1 °C storage was closely linked to the metabolic activity of sorbitol, which stimulated sorbitol synthesis by enhancing sorbitol-6-phosphate dehydrogenase (S6PDH) activity after 12 days while suppressing sorbitol degradation via decreased sorbitol oxidase (SOX) and NAD+-sorbitol dehydrogenase (NAD+-SDH) activities before 24 days. In addition, the notable up-regulation in the NAD+-SDH activity in the late storage period promoted the conversion of sorbitol to fructose and glucose under 1 °C storage, thereby providing ample energy substrate for ATP generation. Moreover, sorbitol acts as a vital signaling molecule, and substantially up-regulated expressions of sorbitol transporters genes (PpeSOT3, PpeSOT5, and PpeSOT7) were observed in fruit stored at 1 °C, which might promote sorbitol transport and improve cold tolerance in peach fruit. Taken together, these findings suggested that 1 °C storage delayed CI by enhancing sorbitol metabolism and transporter activity, promoting sorbitol accumulation, and finally elevating the energy status in yellow peach fruit.
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Affiliation(s)
- Huijuan Zhou
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China; Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210000, PR China.
| | - Mingshen Su
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Jihong Du
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Xianan Zhang
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Xiongwei Li
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Minghao Zhang
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Yang Hu
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China
| | - Chen Huan
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, PR China; Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210000, PR China.
| | - Zhengwen Ye
- Forestry and Fruit Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, PR China; Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210000, PR China.
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Rahimzadeh Karvansara P, Kelly C, Krone R, Zenzen I, Ristova D, Silz E, Jobe TO, Kopriva S. Unique features of regulation of sulfate assimilation in monocots. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:308-320. [PMID: 36222825 DOI: 10.1093/jxb/erac402] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Sulfate assimilation is an essential pathway of plant primary metabolism, regulated by the demand for reduced sulfur (S). The S-containing tripeptide glutathione (GSH) is the key signal for such regulation in Arabidopsis, but little is known about the conservation of these regulatory mechanisms beyond this model species. Using two model monocot species, C3 rice (Oryza sativa) and C4Setaria viridis, and feeding of cysteine or GSH, we aimed to find out how conserved are the regulatory mechanisms described for Arabidopsis in these species. We showed that while in principle the regulation is similar, there are many species-specific differences. For example, thiols supplied by the roots are translocated to the shoots in rice but remain in the roots of Setaria. Cysteine and GSH concentrations are highly correlated in Setaria, but not in rice. In both rice and Setaria, GSH seems to be the signal for demand-driven regulation of sulfate assimilation. Unexpectedly, we observed cysteine oxidation to sulfate in both species, a reaction that does not occur in Arabidopsis. This reaction is dependent on sulfite oxidase, but the enzyme(s) releasing sulfite from cysteine still need to be identified. Altogether our data reveal a number of unique features in the regulation of S metabolism in the monocot species and indicate the need for using multiple taxonomically distinct models to better understand the control of nutrient homeostasis, which is important for generating low-input crop varieties.
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Affiliation(s)
- Parisa Rahimzadeh Karvansara
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Ciaran Kelly
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Raissa Krone
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Ivan Zenzen
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Daniela Ristova
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Emely Silz
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Timothy O Jobe
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
| | - Stanislav Kopriva
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany
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Mishra S, Chowdhary AA, Bhau BS, Srivastava V. Hydrogen sulphide-mediated alleviation and its interplay with other signalling molecules during temperature stress. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:569-575. [PMID: 35238126 DOI: 10.1111/plb.13406] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The sessile habit of plants does not provide choices to escape the environmental constraints, leading to negative impacts on their growth and development. This causes significant losses in the agriculture sector and raises serious issues on global food security. Extreme temperatures (high or low) influence several aspects of plant life and can cause reproduction malfunction. Therefore, a strategy for temperature amelioration is necessary for the management of agricultural productivity. Supplementation with various chemicals (e.g. phytohormones, gasotransmitters, osmolytes) is considered a good choice to manage plant stress. Gasotransmitters are well-recognized for stress mitigation in plants, among which hydrogen sulphide (H2 S) has proved promising to alleviate stress. Temperature (heat/cold) stress can stimulate the endogenous production of H2 S in plants, and many studies have reported the significance of H2 S for temperature stress amelioration. Here, H2 S led to positive changes in plant physiological, biochemical and molecular responses, which are usually compromised during stress. Further, H2 S also coordinate with other signalling components that act either upstream or downstream during stress mitigation. This review focuses on the significance of H2 S for mitigation of temperature stress, with a comprehensive discussion on cross-talk with other signalling components or supplements (e.g. NO, H2 O2 , salicylic acid, trehalose, proline). Finally, the review provides a rational assessment and holistic understanding of H2 S-mediated mitigation of extreme temperature stress and addresses the prospects for development of an effective strategy to manage temperature stress.
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Affiliation(s)
- S Mishra
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - A A Chowdhary
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - B S Bhau
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - V Srivastava
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
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Kurmanbayeva A, Bekturova A, Soltabayeva A, Oshanova D, Nurbekova Z, Srivastava S, Tiwari P, Dubey AK, Sagi M. Active O-acetylserine-(thiol) lyase A and B confer improved selenium resistance and degrade l-Cys and l-SeCys in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2525-2539. [PMID: 35084469 DOI: 10.1093/jxb/erac021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
The roles of cytosolic O-acetylserine-(thiol)-lyase A (OASTLA), chloroplastic OASTLB, and mitochondrial OASTLC in plant selenate resistance were studied in Arabidopsis. Impairment in OASTLA and OASTLB resulted in reduced biomass, chlorophyll and soluble protein content compared with selenate-treated OASTLC-impaired and wild-type plants. The generally lower total selenium (Se), protein-Se, organic-sulfur and protein-sulfur (S) content in oastlA and oastlB compared with wild-type and oastlC leaves indicated that Se accumulation was not the main cause for the stress symptoms in these mutants. Notably, the application of selenate positively induced S-starvation markers and the OASTLs, followed by increased sulfite reductase, sulfite oxidase activities, and increased sulfite and sulfide concentrations. Taken together, our results indicate a futile anabolic S-starvation response that resulted in lower glutathione and increased oxidative stress symptoms in oastlA and oastlB mutants. In-gel assays of l-cysteine and l-seleno-cysteine, desulfhydrase activities revealed that two of the three OASTL activity bands in each of the oastl single mutants were enhanced in response to selenate, whereas the impaired proteins exhibited a missing activity band. The absence of differently migrated activity bands in each of the three oastl mutants indicates that these OASTLs are major components of desulfhydrase activity, degrading l-cysteine and l-seleno-cysteine in Arabidopsis.
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Affiliation(s)
- Assylay Kurmanbayeva
- Department of Biotechnology and Microbiology, L. N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
| | - Aizat Bekturova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Aigerim Soltabayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Dinara Oshanova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Zhadyrassyn Nurbekova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Sudhakar Srivastava
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Poonam Tiwari
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Arvind Kumar Dubey
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Moshe Sagi
- The Albert Katz Department of Dryland Biotechnologies, French Associates Institute for Agriculture and Biotechnology of Dryland, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
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Srivastava V, Chowdhary AA, Verma PK, Mehrotra S, Mishra S. Hydrogen sulfide-mediated mitigation and its integrated signaling crosstalk during salinity stress. PHYSIOLOGIA PLANTARUM 2022; 174:e13633. [PMID: 35060139 DOI: 10.1111/ppl.13633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/16/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Environmental stresses negatively affect plant development and significantly influence global agricultural productivity. The growth suppression due to soil salinity involves osmotic stress, which is accompanied by ion toxicity, nutritional imbalance, and oxidative stress. The amelioration of salinity stress is one of the fundamental goals to be achieved to ensure food security and better meet the issues related to global hunger. The application of exogenous chemicals is the imperative and efficient choice to alleviate stress in the agricultural field. Among them, hydrogen sulfide (H2 S, a gasotransmitter) is known for its efficient role in stress mitigation, including salinity stress, along with other biological features related to growth and development in plants. H2 S plays a role in improving photosynthesis and ROS homeostasis, and interacts with other signaling components in a cascade fashion. The current review gives a comprehensive view of the participation of H2 S in salinity stress alleviation in plants. Further, its crosstalk with other stress ameliorating signaling component or supplement (e.g., NO, H2 O2 , melatonin) is also covered and discussed. Finally, we discuss the possible prospects to meet with success in agricultural fields.
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Affiliation(s)
- Vikas Srivastava
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - Aksar Ali Chowdhary
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - Praveen Kumar Verma
- Plant Immunity Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Shakti Mehrotra
- Department of Biotechnology, Institute of Engineering and Technology, Lucknow, Uttar Pradesh, India
| | - Sonal Mishra
- Department of Botany, School of Life Sciences, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
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Reimer JJ, Thiele B, Biermann RT, Junker-Frohn LV, Wiese-Klinkenberg A, Usadel B, Wormit A. Tomato leaves under stress: a comparison of stress response to mild abiotic stress between a cultivated and a wild tomato species. PLANT MOLECULAR BIOLOGY 2021; 107:177-206. [PMID: 34677706 PMCID: PMC8553704 DOI: 10.1007/s11103-021-01194-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/16/2021] [Indexed: 05/03/2023]
Abstract
Tomato is one of the most produced crop plants on earth and growing in the fields and greenhouses all over the world. Breeding with known traits of wild species can enhance stress tolerance of cultivated crops. In this study, we investigated responses of the transcriptome as well as primary and secondary metabolites in leaves of a cultivated and a wild tomato to several abiotic stresses such as nitrogen deficiency, chilling or warmer temperatures, elevated light intensities and combinations thereof. The wild species responded different to varied temperature conditions compared to the cultivated tomato. Nitrogen deficiency caused the strongest responses and induced in particular the secondary metabolism in both species but to much higher extent in the cultivated tomato. Our study supports the potential of a targeted induction of valuable secondary metabolites in green residues of horticultural production, that will otherwise only be composted after fruit harvest. In particular, the cultivated tomato showed a strong induction in the group of mono caffeoylquinic acids in response to nitrogen deficiency. In addition, the observed differences in stress responses between cultivated and wild tomato can lead to new breeding targets for better stress tolerance.
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Affiliation(s)
- Julia J Reimer
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, PtJ, 52425, Jülich, Germany
| | - Björn Thiele
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Agrosphere (IBG-3), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Robin T Biermann
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Leibniz Institute of Vegetable and Ornamental Crops (IGZ) e.V., 14979, Großbeeren, Germany
| | - Laura V Junker-Frohn
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Anika Wiese-Klinkenberg
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Bioinformatics (IBG-4), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Björn Usadel
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Bioinformatics (IBG-4), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Heinrich-Heine-University, Chair of Biological Data Science, 40225, Düsseldorf, Germany
| | - Alexandra Wormit
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany.
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
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Bekturova A, Oshanova D, Tiwari P, Nurbekova Z, Kurmanbayeva A, Soltabayeva A, Yarmolinsky D, Srivastava S, Turecková V, Strnad M, Sagi M. Adenosine 5' phosphosulfate reductase and sulfite oxidase regulate sulfite-induced water loss in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:6447-6466. [PMID: 34107028 DOI: 10.1093/jxb/erab249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/30/2021] [Indexed: 05/22/2023]
Abstract
Chloroplast-localized adenosine-5'-phosphosulphate reductase (APR) generates sulfite and plays a pivotal role in reduction of sulfate to cysteine. The peroxisome-localized sulfite oxidase (SO) oxidizes excess sulfite to sulfate. Arabidopsis wild type, SO RNA-interference (SO Ri) and SO overexpression (SO OE) transgenic lines infiltrated with sulfite showed increased water loss in SO Ri plants, and smaller stomatal apertures in SO OE plants compared with wild-type plants. Sulfite application also limited sulfate and abscisic acid-induced stomatal closure in wild type and SO Ri. The increases in APR activity in response to sulfite infiltration into wild type and SO Ri leaves resulted in an increase in endogenous sulfite, indicating that APR has an important role in sulfite-induced increases in stomatal aperture. Sulfite-induced H2O2 generation by NADPH oxidase led to enhanced APR expression and sulfite production. Suppression of APR by inhibiting NADPH oxidase and glutathione reductase2 (GR2), or mutation in APR2 or GR2, resulted in a decrease in sulfite production and stomatal apertures. The importance of APR and SO and the significance of sulfite concentrations in water loss were further demonstrated during rapid, harsh drought stress in root-detached wild-type, gr2 and SO transgenic plants. Our results demonstrate the role of SO in sulfite homeostasis in relation to water consumption in well-watered plants.
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Affiliation(s)
- Aizat Bekturova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Dinara Oshanova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Poonam Tiwari
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Zhadyrassyn Nurbekova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Assylay Kurmanbayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Aigerim Soltabayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Dmitry Yarmolinsky
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Sudhakar Srivastava
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
| | - Veronika Turecková
- Laboratory of Growth Regulators, Palacky University & Institute of Experimental Botany ASCR, Slechtitelu 11, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Palacky University & Institute of Experimental Botany ASCR, Slechtitelu 11, Olomouc, Czech Republic
| | - Moshe Sagi
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boker Campus, Israel
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Effects of Foliage Spraying with Sodium Bisulfite on the Photosynthesis of Orychophragmus violaceus. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7060137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Sulphurous acid derived from sulfur dioxide (SO2) emission leads to the pollution of irrigation water and the inhibition of plant growth. The safe concentration threshold of NaHSO3 in plants should be clarified to promote agricultural production. In this study, Orychophragmus violaceus seedlings were used as experimental materials and five NaHSO3 concentrations (i.e., 0, 1, 2, 5, 10 mmol·L−1) were simultaneously sprayed on the leaf surface of different seedlings separately. Leaf physiology responses under different concentrations were analyzed. The NaHSO3 did not promote photosynthesis in O. violaceus under the 1 and 2 mmol·L−1 treatments. It was conducive to the net photosynthetic rate (PN), photorespiration rate (Rp), chlorophyll content, actual photochemical quantum yield (YII) and photochemical quenching (qP) under the 5 mmol·L−1 treatment. However, quantum yield of regulated energy dissipation (YNPQ) and nonphotochemical quenching (NPQ) were inhibited. Under the 10 mmol·L−1 treatment, PN, chlorophyll content, YII, qP, dark respiration rate (Rd) and electron transport rate (ETR) showed significant decreases, while the photorespiration portion (Sp) significantly increased. Our results demonstrated that NaHSO3 provided a sulfur source for plant growth and interfered with the redox reaction of the plant itself, and its role as a photorespiratory inhibitor might be masked.
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10
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Weber JN, Kaufholdt D, Minner-Meinen R, Bloem E, Shahid A, Rennenberg H, Hänsch R. Impact of wildfires on SO 2 detoxification mechanisms in leaves of oak and beech trees. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:116389. [PMID: 33433339 DOI: 10.1016/j.envpol.2020.116389] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
Frequency and intensity of wildfire occurrences are dramatically increasing worldwide due to global climate change, having a devastating effect on the entire ecosystem including plants. Moreover, distribution of fire-smoke can influence the natural environment over very long distances, i.e. hundreds of kilometres. Dry plant matter contains 0.1-0.9% (w/w) sulphur, which is mainly released during combustion into the atmosphere as sulphur dioxide (SO2) resulting in local concentrations of up to 3000 nL L-1. SO2 is a highly hazardous gas, which enters plants mostly via the stomata. Toxic sulphite is formed inside the leaves due to conversion of SO2. Plants as sessile organisms cannot escape from threats, why they evolved an impressive diversity of molecular defence mechanisms. In the present study, two recent wildfires in Germany were evaluated to analyse the effect of SO2 released into the atmosphere on deciduous trees: the Meppen peat fire in 2018 and the forest fire close to Luebtheen in 2019. Collected leaf material from beech (Fagus sylvatica) and oak (Quercus robur) was examined with respect to detoxification of sulphur surplus due to the exposure to elevated SO2. An induced stress reaction in both species was indicated by a 1.5-fold increase in oxidized glutathione. In beech leaves, the enzymatic activities of the sulphite detoxification enzymes sulphite oxidase and apoplastic peroxidases were increased 5-fold and a trend of sulphate accumulation was observed. In contrast, oaks did not regulate these enzymes during smoke exposure, however, the constitutive activity is 10-fold and 3-fold higher than in beech. These results show for the first time sulphite detoxification strategies of trees in situ after natural smoke exposure. Beech and oak trees survived short-term SO2 fumigation due to exclusion of toxic gases and different oxidative detoxification strategies. Beeches use efficient upregulation of oxidative sulphite detoxification enzymes, while oaks hold a constitutively high enzyme-pool available.
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Affiliation(s)
- Jan-Niklas Weber
- Institut für Pflanzenbiologie Technische Universität Braunschweig, Humboldtstraße 1, D-38106, Braunschweig, Germany.
| | - David Kaufholdt
- Institut für Pflanzenbiologie Technische Universität Braunschweig, Humboldtstraße 1, D-38106, Braunschweig, Germany.
| | - Rieke Minner-Meinen
- Institut für Pflanzenbiologie Technische Universität Braunschweig, Humboldtstraße 1, D-38106, Braunschweig, Germany.
| | - Elke Bloem
- Institute for Crop and Soil Science Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Bundesallee 69, D-38116, Braunschweig, Germany.
| | - Afsheen Shahid
- Institut für Forstwissenschaften, Albert-Ludwigs-Universität Freiburg, Georges-Köhler Allee 53/54, D-79110, Freiburg, Germany.
| | - Heinz Rennenberg
- Institut für Forstwissenschaften, Albert-Ludwigs-Universität Freiburg, Georges-Köhler Allee 53/54, D-79110, Freiburg, Germany; Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Tiansheng Road No. 2, 400715, Chongqing, Beibei District, PR China.
| | - Robert Hänsch
- Institut für Pflanzenbiologie Technische Universität Braunschweig, Humboldtstraße 1, D-38106, Braunschweig, Germany; Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Tiansheng Road No. 2, 400715, Chongqing, Beibei District, PR China.
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11
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Liu J, Gao Y, Gong F, Hou F, Zhang Z, Cheng X, Du W, Zhang L, Wang J, Xu J, Xing G, Kang X, Li S. The Transcriptome and Metabolome Reveal Stress Responses in Sulfur-Fumigated Cucumber ( Cucumis sativus L.). FRONTIERS IN PLANT SCIENCE 2021; 12:778956. [PMID: 34868181 PMCID: PMC8636124 DOI: 10.3389/fpls.2021.778956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/11/2021] [Indexed: 05/19/2023]
Abstract
Sulfur (S) fumigation is a commonly used sterilization method in horticultural facilities against fungal diseases. S fumigation damaged cucumber leaves, although the response mechanism is unclear. This study analyzes the growth, transcriptome, and metabolomic profiles of young and mature leaves, ovaries, and commercial cucumber fruits to decipher the mechanism of cucumber stress response under S fumigation. S fumigation significantly changed the photosynthetic efficiency and reactive oxygen species (ROS) in leaves, but not fruit development, fruit mass, and peel color. Transcriptome analysis indicated that S fumigation strongly regulated stress defense genes. The weighted gene co-expression network analysis revealed that S fumigation regulated ASPG1, AMC1 defense genes, LECRK3, and PERK1 protein kinase. The abscisic acid (ABA)-mediated model of regulation under S fumigation was constructed. Metabolome analysis showed that S fumigation significantly upregulated or downregulated the contents of amino acids, organic acids, sugars, glycosides, and lipids (VIP > 1 and P-value < 0.05). The opposite Pearson's correlations of these differential metabolites implied that cucumber had different metabolic patterns in short-term and long-term S fumigation. Besides, the elevated levels of proline and triglyceride indicated that stress-responsive mechanisms existed in S-fumigated cucumber. Moreover, the comprehensive analysis indicated that S fumigation elevated secondary S-containing metabolites but decreased sulfate absorption and transportation in cucumber. Overall, our results provided a comprehensive assessment of S fumigation on cucumber, which laid the theoretical foundation for S fumigation in protected cultivation.
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Affiliation(s)
- Juan Liu
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Yang Gao
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Feifei Gong
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Feifan Hou
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Zhipeng Zhang
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Xiaojing Cheng
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Wei Du
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Lingling Zhang
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Jinyao Wang
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Jin Xu
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Guoming Xing
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
| | - Xiuping Kang
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
- *Correspondence: Xiuping Kang,
| | - Sen Li
- College of Horticulture, Shanxi Agricultural University, Jinzhong, China
- Collaborative Innovation Center for Improving Quality and Increase of Protected Vegetables in Shanxi Province, Jinzhong, China
- Sen Li,
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12
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Oshanova D, Kurmanbayeva A, Bekturova A, Soltabayeva A, Nurbekova Z, Standing D, Dubey AK, Sagi M. Level of Sulfite Oxidase Activity Affects Sulfur and Carbon Metabolism in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2021; 12:690830. [PMID: 34249061 PMCID: PMC8264797 DOI: 10.3389/fpls.2021.690830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/26/2021] [Indexed: 05/05/2023]
Abstract
Molybdenum cofactor containing sulfite oxidase (SO) enzyme is an important player in protecting plants against exogenous toxic sulfite. It was also demonstrated that SO activity is essential to cope with rising dark-induced endogenous sulfite levels and maintain optimal carbon and sulfur metabolism in tomato plants exposed to extended dark stress. The response of SO and sulfite reductase to direct exposure of low and high levels of sulfate and carbon was rarely shown. By employing Arabidopsis wild-type, sulfite reductase, and SO-modulated plants supplied with excess or limited carbon or sulfur supply, the current study demonstrates the important role of SO in carbon and sulfur metabolism. Application of low and excess sucrose, or sulfate levels, led to lower biomass accumulation rates, followed by enhanced sulfite accumulation in SO impaired mutant compared with wild-type. SO-impairment resulted in the channeling of sulfite to the sulfate reduction pathway, resulting in an overflow of organic S accumulation. In addition, sulfite enhancement was followed by oxidative stress contributing as well to the lower biomass accumulation in SO-modulated plants. These results indicate that the role of SO is not limited to protection against elevated sulfite toxicity but to maintaining optimal carbon and sulfur metabolism in Arabidopsis plants.
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Affiliation(s)
- Dinara Oshanova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Assylay Kurmanbayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Aizat Bekturova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Aigerim Soltabayeva
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Zhadyrassyn Nurbekova
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Dominic Standing
- The Albert Katz Department of Dryland Biotechnologies, French Associates Institute for Agriculture and Biotechnology of Dryland, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Arvind Kumar Dubey
- Jacob Blaustein Center for Scientific Cooperation, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Moshe Sagi
- The Albert Katz Department of Dryland Biotechnologies, French Associates Institute for Agriculture and Biotechnology of Dryland, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beersheba, Israel
- *Correspondence: Moshe Sagi
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13
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Saikia B, Debbarma J, Maharana J, Singha DL, Velmuruagan N, Dekaboruah H, Arunkumar KP, Chikkaputtaiah C. SlHyPRP1 and DEA1, the multiple stress responsive eight-cysteine motif family genes of tomato ( Solanum lycopersicum L.) are expressed tissue specifically, localize and interact at cytoplasm and plasma membrane in vivo. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2020; 26:2553-2568. [PMID: 33424164 PMCID: PMC7772121 DOI: 10.1007/s12298-020-00913-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/22/2020] [Accepted: 11/17/2020] [Indexed: 05/09/2023]
Abstract
Owing to rapid global climate change, the occurrence of multiple abiotic stresses is known to influence the outburst of biotic stress factors which affects crop productivity. Therefore, it is essential to understand the molecular and cell biology of key genes associated with multiple stress responses in crop plants. SlHyPRP1 and DEA1, the members of eight-cysteine motif (8CM) family genes have been recently identified as putative regulators of multiple stress responses in tomato (Solanum lycopersicum L.). In order to gain deeper insight into cell and molecular biology of SlHyPRP1 and DEA1, we performed their expression analysis in three tomato cultivars and in vivo cell biological analysis. The semi-quantitative PCR and qRT-PCR results showed the higher expression of SlHyPRP1 and DEA1 in leaf, stem, flower and root tissues as compared to fruit and seed tissues in all three cultivars. The expression levels of SlHyPRP1 and DEA1 were found to be relatively higher in a wilt susceptible tomato cultivar (Arka Vikas) than a multiple disease resistant cultivar (Arka Abhed). In vivo cell biological analysis through Gateway cloning and Bi-FC assay revealed the predominant sub-cellular localization and strong protein-protein interaction of SlHyPRP1 and DEA1 at the cytoplasm and plasma membrane. Moreover, SlHyPRP1 showed in vivo interaction with stress responsive proteins WRKY3 and MST1. Our findings suggest that SlHyPRP1 with DEA1 are co-expressed with tissue specificity and might function together by association with WRKY3 and MST1 in plasma membrane for regulating multiple stress responses in the tomato plant.
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Affiliation(s)
- Banashree Saikia
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785 006 India
- Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, 201 002 India
| | - Johni Debbarma
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785 006 India
- Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, 201 002 India
| | - Jitendra Maharana
- Distributed Information Centre (DIC), Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam India
- Present Address: Institute of Biological Chemistry, Academia Sinica, Taipei, 11529 Taiwan
| | - Dhanawantari L. Singha
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785 006 India
| | - Natarajan Velmuruagan
- Biological Sciences Division, Branch Laboratory-Itanagar, CSIR-NEIST, Arunachal Pradesh, Naharlagun, 791 110 India
| | - Hariprasanna Dekaboruah
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785 006 India
- Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, 201 002 India
| | - Kallare P. Arunkumar
- Central Muga Eri Research and Training Institute (CMER&TI), Lahdoigarh, Jorhat, Assam, 785 700 India
| | - Channakeshavaiah Chikkaputtaiah
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785 006 India
- Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, 201 002 India
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14
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Comprehensive proteomic analysis revealing multifaceted regulatory network of the xero-halophyte Haloxylon salicornicum involved in salt tolerance. J Biotechnol 2020; 324:143-161. [DOI: 10.1016/j.jbiotec.2020.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 01/06/2023]
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15
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Wu C, Kannan S, Verma CS, Swaminathan K, Wong SM. Molecular modeling and interaction between Arabidopsis sulfite oxidase and the GW motif of Turnip crinkle virus coat protein. Virology 2020; 551:64-74. [PMID: 33038689 DOI: 10.1016/j.virol.2020.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 11/29/2022]
Abstract
Previous study has shown that Hibiscus sulfite oxidase (SO) interacts with Hibiscus chlorotic ringspot virus (HCRSV) coat protein (CP) and triggers sulfur enhanced defense (SED). In this study, we show the interaction of Arabidopsis SO (AtSO) and Turnip crinkle virus (TCV) CP in Arabidopsis thaliana plants. We identified the binding sites of TCV CP (W274) and AtSO (D223) using bioinformatics and confirmed it experimentally. Mutation of binding site W274 to A274 in TCV CP resulted in failure of TCV infection. TCV accumulation in SO over-expression (SO_OE) plants was lower than that in wild-type (WT) and SO knock-out (SO_KO) plants at 7 dpi but reached a level similar to that of WT and SO_KO plants at 10 dpi. AtSO competed with Argonaute 1 (AGO1) for TCV CP binding in vitro. AtSO may serve as an anti-viral factor through sequestering TCV CP for binding with AGO1 and confers virus resistance.
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Affiliation(s)
- Chao Wu
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore
| | | | - Chandra S Verma
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore; Bioinformatics Institute (A*STAR), 30 Biopolis St, 07-01 Matrix, 138671, Singapore; School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr, 637551, Singapore
| | - Kunchithapadam Swaminathan
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore.
| | - Sek-Man Wong
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore; Temasek Life Sciences Laboratory, 1 Research Link Road, 117604, Singapore; National University of Singapore Suzhou Research Institute, Suzhou, 215123, PR China.
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16
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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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17
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Selles B, Moseler A, Rouhier N, Couturier J. Rhodanese domain-containing sulfurtransferases: multifaceted proteins involved in sulfur trafficking in plants. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4139-4154. [PMID: 31055601 DOI: 10.1093/jxb/erz213] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 04/29/2019] [Indexed: 05/25/2023]
Abstract
Sulfur is an essential element for the growth and development of plants, which synthesize cysteine and methionine from the reductive assimilation of sulfate. Besides its incorporation into proteins, cysteine is the building block for the biosynthesis of numerous sulfur-containing molecules and cofactors. The required sulfur atoms are extracted either directly from cysteine by cysteine desulfurases or indirectly after its catabolic transformation to 3-mercaptopyruvate, a substrate for sulfurtransferases (STRs). Both enzymes are transiently persulfidated in their reaction cycle, i.e. the abstracted sulfur atom is bound to a reactive cysteine residue in the form of a persulfide group. Trans-persulfidation reactions occur when sulfur atoms are transferred to nucleophilic acceptors such as glutathione, proteins, or small metabolites. STRs form a ubiquitous, multigenic protein family. They are characterized by the presence of at least one rhodanese homology domain (Rhd), which usually contains the catalytic, persulfidated cysteine. In this review, we focus on Arabidopsis STRs, presenting the sequence characteristics of all family members as well as their biochemical and structural features. The physiological functions of particular STRs in the biosynthesis of molybdenum cofactor, thio-modification of cytosolic tRNAs, arsenate tolerance, cysteine catabolism, and hydrogen sulfide formation are also discussed.
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Affiliation(s)
| | - Anna Moseler
- Université de Lorraine, Inra, IAM, Nancy, France
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18
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Baek YS, Goodrich LV, Brown PJ, James BT, Moose SP, Lambert KN, Riechers DE. Transcriptome Profiling and Genome-Wide Association Studies Reveal GSTs and Other Defense Genes Involved in Multiple Signaling Pathways Induced by Herbicide Safener in Grain Sorghum. FRONTIERS IN PLANT SCIENCE 2019; 10:192. [PMID: 30906302 PMCID: PMC6418823 DOI: 10.3389/fpls.2019.00192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 02/05/2019] [Indexed: 05/04/2023]
Abstract
Herbicide safeners protect cereal crops from herbicide injury by inducing genes and proteins involved in detoxification reactions, such as glutathione S-transferases (GSTs) and cytochrome P450s (P450s). Only a few studies have characterized gene or protein expression profiles for investigating plant responses to safener treatment in cereal crops, and most transcriptome analyses in response to safener treatments have been conducted in dicot model species that are not protected by safener from herbicide injury. In this study, three different approaches were utilized in grain sorghum (Sorghum bicolor (L.) Moench) to investigate mechanisms involved in safener-regulated signaling pathways. An initial transcriptome analysis was performed to examine global gene expression in etiolated shoot tissues of hybrid grain sorghum following treatment with the sorghum safener, fluxofenim. Most upregulated transcripts encoded detoxification enzymes, including P450s, GSTs, and UDP-dependent glucosyltransferases (UGTs). Interestingly, several of these upregulated transcripts are similar to genes involved with the biosynthesis and recycling/catabolism of dhurrin, an important chemical defense compound, in these seedling tissues. Secondly, 761 diverse sorghum inbred lines were evaluated in a genome-wide association study (GWAS) to determine key molecular-genetic factors governing safener-mediated signaling mechanisms and/or herbicide detoxification. GWAS revealed a significant single nucleotide polymorphism (SNP) associated with safener-induced response on chromosome 9, located within a phi-class SbGST gene and about 15-kb from a different phi-class SbGST. Lastly, the expression of these two candidate SbGSTs was quantified in etiolated shoot tissues of sorghum inbred BTx623 in response to fluxofenim treatment. SbGSTF1 and SbGSTF2 transcripts increased within 12-hr after fluxofenim treatment but the level of safener-induced expression differed between the two genes. In addition to identifying specific GSTs potentially involved in the safener-mediated detoxification pathway, this research elucidates a new direction for studying both constitutive and inducible mechanisms for chemical defense in cereal crop seedlings.
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Affiliation(s)
- You Soon Baek
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Loren V. Goodrich
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Jerseyville Research Center, Monsanto Company, Jerseyville, IL, United States
| | - Patrick J. Brown
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Brandon T. James
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States
| | - Stephen P. Moose
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Kris N. Lambert
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Dean E. Riechers
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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Naumann M, Hubberten HM, Watanabe M, Hänsch R, Schöttler MA, Hoefgen R. Sulfite Reductase Co-suppression in Tobacco Reveals Detoxification Mechanisms and Downstream Responses Comparable to Sulfate Starvation. FRONTIERS IN PLANT SCIENCE 2018; 9:1423. [PMID: 30374361 PMCID: PMC6196246 DOI: 10.3389/fpls.2018.01423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 09/07/2018] [Indexed: 05/30/2023]
Abstract
Sulfite reductase (SIR) is a key enzyme in higher plants in the assimilatory sulfate reduction pathway. SIR, being exclusively localized in plastids, catalyzes the reduction of sulfite (SO3 2-) to sulfide (S2-) and is essential for plant life. We characterized transgenic plants leading to co-suppression of the SIR gene in tobacco (Nicotiana tabacum cv. Samsun NN). Co-suppression resulted in reduced but not completely extinguished expression of SIR and in a reduction of SIR activity to about 20-50% of the activity in control plants. The reduction of SIR activity caused chlorotic and necrotic phenotypes in tobacco leaves, but with varying phenotype strength even among clones and increasing from young to old leaves. In transgenic plants compared to control plants, metabolite levels upstream of SIR accumulated, such as sulfite, sulfate and thiosulfate. The levels of downstream metabolites were reduced, such as cysteine, glutathione (GSH) and methionine. This metabolic signature resembles a sulfate deprivation phenotype as corroborated by the fact that O-acetylserine (OAS) accumulated. Further, chlorophyll contents, photosynthetic electron transport, and the contents of carbohydrates such as starch, sucrose, fructose, and glucose were reduced. Amino acid compositions were altered in a complex manner due to the reduction of contents of cysteine, and to some extent methionine. Interestingly, sulfide levels remained constant indicating that sulfide homeostasis is crucial for plant performance and survival. Additionally, this allows concluding that sulfide does not act as a signal in this context to control sulfate uptake and assimilation. The accumulation of upstream compounds hints at detoxification mechanisms and, additionally, a control exerted by the downstream metabolites on the sulfate uptake and assimilation system. Co-suppression lines showed increased sensitivity to additionally imposed stresses probably due to the accumulation of reactive compounds because of insufficient detoxification in combination with reduced GSH levels.
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Affiliation(s)
- Marcel Naumann
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
- Division of Quality of Plant Products, Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | | | - Mutsumi Watanabe
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
- Nara Institute of Science and Technology, Ikoma, Japan
| | - Robert Hänsch
- Department of Plant Biology, Technische Universität Braunschweig, Braunschweig, Germany
| | | | - Rainer Hoefgen
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
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20
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Tanifuji K, Lee CC, Sickerman NS, Tatsumi K, Ohki Y, Hu Y, Ribbe MW. Tracing the 'ninth sulfur' of the nitrogenase cofactor via a semi-synthetic approach. Nat Chem 2018; 10:568-572. [PMID: 29662207 PMCID: PMC5910187 DOI: 10.1038/s41557-018-0029-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 02/16/2018] [Indexed: 11/23/2022]
Abstract
The M-cluster is the [(homocitrate)MoFe7S9C] active site of nitrogenase that is derived from an 8Fe core assembled via coupling and rearrangement of two [Fe4S4] clusters concomitant with the insertion of an interstitial carbon and a ‘9th sulfur’. Combining synthetic [Fe4S4] clusters with an assembly protein template, here we show that sulfite can give rise to the ‘9th sulfur’ that is incorporated in the catalytically important belt region of the cofactor after the radical SAM-dependent carbide insertion and the concurrent 8Fe-core rearrangement have already taken place. Based on the differential reactivity of the formed cluster species, we also propose a new [Fe8S8C] cluster intermediate, the L*-cluster, that is similar to the [Fe8S9C] L- cluster but lacks the ‘9th S’ from sulfite. This work provides a semi-synthetic tool for protein reconstitution that could be widely applicable for the functional analysis of other FeS systems.
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Affiliation(s)
- Kazuki Tanifuji
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - Chi Chung Lee
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - Nathaniel S Sickerman
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA
| | - Kazuyuki Tatsumi
- Department of Chemistry, Graduate School of Science and Research Center for Materials Science, Nagoya University, Nagoya, Japan
| | - Yasuhiro Ohki
- Department of Chemistry, Graduate School of Science and Research Center for Materials Science, Nagoya University, Nagoya, Japan
| | - Yilin Hu
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA.
| | - Markus W Ribbe
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, USA. .,Department of Chemistry, University of California, Irvine, CA, USA.
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21
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Andresen E, Peiter E, Küpper H. Trace metal metabolism in plants. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:909-954. [PMID: 29447378 DOI: 10.1093/jxb/erx465] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 12/04/2017] [Indexed: 05/18/2023]
Abstract
Many trace metals are essential micronutrients, but also potent toxins. Due to natural and anthropogenic causes, vastly different trace metal concentrations occur in various habitats, ranging from deficient to toxic levels. Therefore, one focus of plant research is on the response to trace metals in terms of uptake, transport, sequestration, speciation, physiological use, deficiency, toxicity, and detoxification. In this review, we cover most of these aspects for the essential micronutrients copper, iron, manganese, molybdenum, nickel, and zinc to provide a broader overview than found in other recent reviews, to cross-link aspects of knowledge in this very active research field that are often seen in a separated way. For example, individual processes of metal usage, deficiency, or toxicity often were not mechanistically interconnected. Therefore, this review also aims to stimulate the communication of researchers following different approaches, such as gene expression analysis, biochemistry, or biophysics of metalloproteins. Furthermore, we highlight recent insights, emphasizing data obtained under physiologically and environmentally relevant conditions.
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Affiliation(s)
- Elisa Andresen
- Biology Centre, Czech Academy of Sciences, Institute of Plant Molecular Biology, Department of Plant Biophysics and Biochemistry, Branišovská, Ceské Budejovice, Czech Republic
| | - Edgar Peiter
- Martin Luther University Halle-Wittenberg, Institute of Agricultural and Nutritional Sciences, Plant Nutrition Laboratory, Betty-Heimann-Strasse, Halle (Saale), Germany
| | - Hendrik Küpper
- Biology Centre, Czech Academy of Sciences, Institute of Plant Molecular Biology, Department of Plant Biophysics and Biochemistry, Branišovská, České Budějovice, Czech Republic
- University of South Bohemia, Faculty of Science, Department of Experimental Plant Biology, Branišovská, České Budějovice, Czech Republic
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22
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de Lira NPV, Pauletti BA, Marques AC, Perez CA, Caserta R, de Souza AA, Vercesi AE, Paes Leme AF, Benedetti CE. BigR is a sulfide sensor that regulates a sulfur transferase/dioxygenase required for aerobic respiration of plant bacteria under sulfide stress. Sci Rep 2018; 8:3508. [PMID: 29472641 PMCID: PMC5823870 DOI: 10.1038/s41598-018-21974-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/13/2018] [Indexed: 12/24/2022] Open
Abstract
To cope with toxic levels of H2S, the plant pathogens Xylella fastidiosa and Agrobacterium tumefaciens employ the bigR operon to oxidize H2S into sulfite. The bigR operon is regulated by the transcriptional repressor BigR and it encodes a bifunctional sulfur transferase (ST) and sulfur dioxygenase (SDO) enzyme, Blh, required for H2S oxidation and bacterial growth under hypoxia. However, how Blh operates to enhance bacterial survival under hypoxia and how BigR is deactivated to derepress operon transcription is unknown. Here, we show that the ST and SDO activities of Blh are in vitro coupled and necessary to oxidize sulfide into sulfite, and that Blh is critical to maintain the oxygen flux during A. tumefaciens respiration when oxygen becomes limited to cells. We also show that H2S and polysulfides inactivate BigR leading to operon transcription. Moreover, we show that sulfite, which is produced by Blh in the ST and SDO reactions, is toxic to Citrus sinensis and that X. fastidiosa-infected plants accumulate sulfite and higher transcript levels of sulfite detoxification enzymes, suggesting that they are under sulfite stress. These results indicate that BigR acts as a sulfide sensor in the H2S oxidation mechanism that allows pathogens to colonize plant tissues where oxygen is a limiting factor.
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Affiliation(s)
- Nayara Patricia Vieira de Lira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Bianca Alves Pauletti
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Ana Carolina Marques
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, 13083-887, Campinas, SP, Brazil
| | - Carlos Alberto Perez
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Raquel Caserta
- Agronomic Institute of Campinas, Citriculture Research Center 'Sylvio Moreira', CEP 13490-970, Cordeirópolis, SP, Brazil
| | - Alessandra Alves de Souza
- Agronomic Institute of Campinas, Citriculture Research Center 'Sylvio Moreira', CEP 13490-970, Cordeirópolis, SP, Brazil
| | - Aníbal Eugênio Vercesi
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas, 13083-887, Campinas, SP, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil
| | - Celso Eduardo Benedetti
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), CEP 13083-100, Campinas, SP, Brazil.
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Xia Z, Xu Z, Wei Y, Wang M. Overexpression of the Maize Sulfite Oxidase Increases Sulfate and GSH Levels and Enhances Drought Tolerance in Transgenic Tobacco. FRONTIERS IN PLANT SCIENCE 2018; 9:298. [PMID: 29593762 PMCID: PMC5857591 DOI: 10.3389/fpls.2018.00298] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/21/2018] [Indexed: 05/10/2023]
Abstract
Sulfite oxidase (SO) plays a pivotal role in sulfite metabolism. In our previous study, sulfite-oxidizing function of the SO from Zea mays (ZmSO) was characterized. To date, the knowledge of ZmSO's involvement in abiotic stress response is scarce. In this study, we aimed to investigate the role of ZmSO in drought stress. The transcript levels of ZmSO were relatively high in leaves and immature embryos of maize plants, and were up-regulated markedly by PEG-induced water stress. Overexpression of ZmSO improved drought tolerance in tobacco. ZmSO-overexpressing transgenic plants showed higher sulfate and glutathione (GSH) levels but lower hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents under drought stress, indicating that ZmSO confers drought tolerance by enhancing GSH-dependent antioxidant system that scavenged ROS and reduced membrane injury. In addition, the transgenic plants exhibited more increased stomatal response than the wild-type (WT) to water deficit. Interestingly, application of exogenous GSH effectively alleviated growth inhibition in both WT and transgenic plants under drought conditions. qPCR analysis revealed that the expression of several sulfur metabolism-related genes was significantly elevated in the ZmSO-overexpressing lines. Taken together, these results imply that ZmSO confers enhanced drought tolerance in transgenic tobacco plants possibly through affecting stomatal regulation, GSH-dependent antioxidant system, and sulfur metabolism-related gene expression. ZmSO could be exploited for developing drought-tolerant maize varieties in molecular breeding.
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Affiliation(s)
- Zongliang Xia
- College of Life Science, Henan Agricultural University, Zhengzhou, China
- Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, Zhengzhou, China
- *Correspondence: Zongliang Xia,
| | - Ziwei Xu
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Yangyang Wei
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Meiping Wang
- Library of Henan Agricultural University, Zhengzhou, China
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24
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Kurmanbayeva A, Bekturova A, Srivastava S, Soltabayeva A, Asatryan A, Ventura Y, Khan MS, Salazar O, Fedoroff N, Sagi M. Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass in Sarcocornia than the Related Saltwort, Salicornia. PLANT PHYSIOLOGY 2017; 175:272-289. [PMID: 28743765 PMCID: PMC5580768 DOI: 10.1104/pp.17.00780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 07/22/2017] [Indexed: 05/08/2023]
Abstract
Salicornia and Sarcocornia are almost identical halophytes whose edible succulent shoots hold promise for commercial production in saline water. Enhanced sulfur nutrition may be beneficial to crops naturally grown on high sulfate. However, little is known about sulfate nutrition in halophytes. Here we show that Salicornia europaea (ecotype RN) exhibits a significant increase in biomass and organic-S accumulation in response to supplemental sulfate, whereas Sarcocornia fruticosa (ecotype VM) does not, instead exhibiting increased sulfate accumulation. We investigated the role of two pathways on organic-S and biomass accumulation in Salicornia and Sarcoconia: the sulfate reductive pathway that generates Cys and l-Cys desulfhydrase that degrades Cys to H2S, NH3, and pyruvate. The major function of O-acetyl-Ser-(thiol) lyase (OAS-TL; EC 2.5.1.47) is the formation of l-Cys, but our study shows that the OAS-TL A and OAS-TL B of both halophytes are enzymes that also degrade l-Cys to H2S. This activity was significantly higher in Sarcocornia than in Salicornia, especially upon sulfate supplementation. The activity of the sulfate reductive pathway key enzyme, adenosine 5'-phosphosulfate reductase (APR, EC 1.8.99.2), was significantly higher in Salicornia than in Sarcocornia These results suggest that the low organic-S level in Sarcocornia is the result of high l-Cys degradation rate by OAS-TLs, whereas the greater organic-S and biomass accumulation in Salicornia is the result of higher APR activity and low l-Cys degradation rate, resulting in higher net Cys biosynthesis. These results present an initial road map for halophyte growers to attain better growth rates and nutritional value of Salicornia and Sarcocornia.
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Affiliation(s)
- Assylay Kurmanbayeva
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Aizat Bekturova
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Sudhakar Srivastava
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Aigerim Soltabayeva
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Armine Asatryan
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Yvonne Ventura
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
| | - Mohammad Suhail Khan
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
| | - Octavio Salazar
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
| | - Nina Fedoroff
- King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia
- Evan Pugh Professor Emerita, Penn State University, State College, Pennsylvania
| | - Moshe Sagi
- Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel
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25
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Filiz E, Vatansever R, Ozyigit II. Insights into a key sulfite scavenger enzyme sulfite oxidase ( SOX) gene in plants. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2017; 23:385-395. [PMID: 28461726 PMCID: PMC5391365 DOI: 10.1007/s12298-017-0433-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 03/07/2017] [Accepted: 03/16/2017] [Indexed: 05/25/2023]
Abstract
Sulfite oxidase (SOX) is a crucial molybdenum cofactor-containing enzyme in plants that re-oxidizes the sulfite back to sulfate in sulfite assimilation pathway. However, studies of this crucial enzyme are quite limited hence this work was attempted to understand the SOXs in four plant species namely, Arabidopsis thaliana, Solanum lycopersicum, Populus trichocarpa and Brachypodium distachyon. Herein studied SOX enzyme was characterized with both oxidoreductase molybdopterin binding and Mo-co oxidoreductase dimerization domains. The alignment and motif analyses revealed the highly conserved primary structure of SOXs. The phylogeny constructed with additional species demonstrated a clear divergence of monocots, dicots and lower plants. In addition, to further understand the phylogenetic relationship and make a functional inference, a structure-based phylogeny was constructed using normalized RMSD values in five superposed models from four modelled plant SOXs herein and one previously characterized chicken SOX structure. The plant and animal SOXs showed a clear divergence and also implicated their functional divergences. Based on tree topology, monocot B. distachyon appeared to be diverged from other dicots, pointing out a possible monocot-dicot split. The expression patterns of sulfite scavengers including SOX were differentially modulated under cold, heat, salt and high light stresses. Particularly, they tend to be up-regulated under high light and heat while being down-regulated under cold and salt stresses. The presence of cis-regulatory motifs associated with different stresses in upstream regions of SOX genes was thus justified. The protein-protein interaction network of AtSOX and network enrichment with gene ontology (GO) terms showed that most predicted proteins, including sulfite reductase, ATP sulfurylases and APS reductases were among prime enzymes involved in sulfite pathway. Finally, SOX-sulfite docked structures indicated that arginine residues particularly Arg374 is crucial for SOX-sulfite binding and additional two other residues such as Arg51 and Arg103 may be important for SOX-sulfite bindings in plants.
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Affiliation(s)
- Ertugrul Filiz
- Department of Crop and Animal Production, Cilimli Vocational School, Duzce University, 81750 Cilimli, Duzce, Turkey
| | - Recep Vatansever
- Department of Biology, Faculty of Science and Arts, Marmara University, 34722 Goztepe, Istanbul, Turkey
| | - Ibrahim Ilker Ozyigit
- Department of Biology, Faculty of Science and Arts, Marmara University, 34722 Goztepe, Istanbul, Turkey
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26
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Bratt A, Rosenwasser S, Meyer A, Fluhr R. Organelle redox autonomy during environmental stress. PLANT, CELL & ENVIRONMENT 2016; 39:1909-1919. [PMID: 27037976 DOI: 10.1111/pce.12746] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/14/2016] [Accepted: 03/17/2016] [Indexed: 06/05/2023]
Abstract
Oxidative stress is generated in plants because of inequalities in the rate of reactive oxygen species (ROS) generation and scavenging. The subcellular redox state under various stress conditions was assessed using the redox reporter roGFP2 targeted to chloroplastic, mitochondrial, peroxisomal and cytosolic compartments. In parallel, the vitality of the plant was measured by ion leakage. Our results revealed that during certain physiological stress conditions the changes in roGFP2 oxidation are comparable to application of high concentrations of exogenous H2 O2 . Under each stress, particular organelles were affected. Conditions of extended dark stress, or application of elicitor, impacted chiefly on the status of peroxisomal redox state. In contrast, conditions of drought or high light altered the status of mitochondrial or chloroplast redox state, respectively. Amalgamation of the results from diverse environmental stresses shows cases of organelle autonomy as well as multi-organelle oxidative change. Importantly, organelle-specific oxidation under several stresses proceeded cell death as measured by ion leakage, suggesting early roGFP oxidation as predictive of cell death. The measurement of redox state in multiple compartments enables one to look at redox state connectivity between organelles in relation to oxidative stress as well as assign a redox fingerprint to various types of stress conditions.
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Affiliation(s)
- Avishay Bratt
- Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel, 7610001
| | - Shilo Rosenwasser
- Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel, 7610001
| | - Andreas Meyer
- Chemical Signaling Lab, University of Bonn, Bonn, Germany, D-53113
| | - Robert Fluhr
- Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel, 7610001
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27
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Koprivova A, Kopriva S. Sulfation pathways in plants. Chem Biol Interact 2016; 259:23-30. [PMID: 27206694 DOI: 10.1016/j.cbi.2016.05.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/02/2016] [Accepted: 05/16/2016] [Indexed: 11/27/2022]
Abstract
Plants take up sulfur in the form of sulfate. Sulfate is activated to adenosine 5'-phosphosulfate (APS) and reduced to sulfite and then to sulfide when it is assimilated into amino acid cysteine. Alternatively, APS is phosphorylated to 3'-phosphoadenosine 5'-phosphosulfate (PAPS), and sulfate from PAPS is transferred onto diverse metabolites in its oxidized form. Traditionally, these pathways are referred to as primary and secondary sulfate metabolism, respectively. However, the synthesis of PAPS is essential for plants and even its reduced provision leads to dwarfism. Here the current knowledge of enzymes involved in sulfation pathways of plants will be summarized, the similarities and differences between different kingdoms will be highlighted, and major open questions in the research of plant sulfation will be formulated.
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Affiliation(s)
- Anna Koprivova
- Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Str. 47b, 50674, Cologne, Germany.
| | - Stanislav Kopriva
- Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Str. 47b, 50674, Cologne, Germany.
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28
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Wang M, Jia Y, Xu Z, Xia Z. Impairment of Sulfite Reductase Decreases Oxidative Stress Tolerance in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2016; 7:1843. [PMID: 27994615 PMCID: PMC5133253 DOI: 10.3389/fpls.2016.01843] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/22/2016] [Indexed: 05/03/2023]
Abstract
As an essential enzyme in the sulfate assimilation reductive pathway, sulfite reductase (SiR) plays important roles in diverse metabolic processes such as sulfur homeostasis and cysteine metabolism. However, whether plant SiR is involved in oxidative stress response is largely unknown. Here, we show that SiR functions in methyl viologen (MV)-induced oxidative stress in Arabidopsis. The transcript levels of SiR were higher in leaves, immature siliques, and roots and were markedly and rapidly up-regulated by MV exposure. The SiR knock-down transgenic lines had about 60% residual transcripts and were more susceptible than wild-type when exposed to oxidative stress. The severe damage phenotypes of the SiR-impaired lines were accompanied by increases of hydrogen peroxide (H2O2), malondialdehyde (MDA), and sulfite accumulations, but less amounts of glutathione (GSH). Interestingly, application of exogenous GSH effectively rescued corresponding MV hypersensitivity in SiR-impaired plants. qRT-PCR analysis revealed that there was significantly increased expression of several sulfite metabolism-related genes in SiR-impaired lines. Noticeably, enhanced transcripts of the three APR genes were quite evident in SiR-impaired plants; suggesting that the increased sulfite in the SiR-impaired plants could be a result of the reduced SiR coupled to enhanced APR expression during oxidative stress. Together, our results indicate that SiR is involved in oxidative stress tolerance possibly by maintaining sulfite homeostasis, regulating GSH levels, and modulating sulfite metabolism-related gene expression in Arabidopsis. SiR could be exploited for engineering environmental stress-tolerant plants in molecular breeding of crops.
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29
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Kopriva S, Calderwood A, Weckopp SC, Koprivova A. Plant sulfur and Big Data. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 241:1-10. [PMID: 26706053 DOI: 10.1016/j.plantsci.2015.09.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/26/2015] [Accepted: 09/17/2015] [Indexed: 05/20/2023]
Abstract
Sulfur is an essential mineral nutrient for plants, therefore, the pathways of its uptake and assimilation have been extensively studied. Great progress has been made in elucidation of the individual genes and enzymes and their regulation. Sulfur assimilation has been intensively investigated by -omics technologies and has been target of several genome wide genetic approaches. This brought a significant step in our understanding of the regulation of the pathway and its integration in cellular metabolism. However, the large amount of information derived from other experiments not directly targeting sulfur has also brought new and exciting insights into processes affecting sulfur homeostasis. In this review we will integrate the findings of the targeted experiments with those that brought unintentional progress in sulfur research, and will discuss how to synthesize the large amount of information available in various repositories into a meaningful dissection of the regulation of a specific metabolic pathway. We then speculate how this might be used to further advance knowledge on control of sulfur metabolism and what are the main questions to be answered.
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Affiliation(s)
- Stanislav Kopriva
- Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Germany.
| | | | - Silke C Weckopp
- Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Germany
| | - Anna Koprivova
- Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Germany
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30
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Brychkova G, Yarmolinsky D, Batushansky A, Grishkevich V, Khozin-Goldberg I, Fait A, Amir R, Fluhr R, Sagi M. Sulfite Oxidase Activity Is Essential for Normal Sulfur, Nitrogen and Carbon Metabolism in Tomato Leaves. PLANTS 2015; 4:573-605. [PMID: 27135342 PMCID: PMC4844397 DOI: 10.3390/plants4030573] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 07/30/2015] [Accepted: 08/07/2015] [Indexed: 11/24/2022]
Abstract
Plant sulfite oxidase [SO; E.C.1.8.3.1] has been shown to be a key player in protecting plants against exogenous toxic sulfite. Recently we showed that SO activity is essential to cope with rising dark-induced endogenous sulfite levels in tomato plants (Lycopersicon esculentum/Solanum lycopersicum Mill. cv. Rheinlands Ruhm). Here we uncover the ramifications of SO impairment on carbon, nitrogen and sulfur (S) metabolites. Current analysis of the wild-type and SO-impaired plants revealed that under controlled conditions, the imbalanced sulfite level resulting from SO impairment conferred a metabolic shift towards elevated reduced S-compounds, namely sulfide, S-amino acids (S-AA), Co-A and acetyl-CoA, followed by non-S-AA, nitrogen and carbon metabolite enhancement, including polar lipids. Exposing plants to dark-induced carbon starvation resulted in a higher degradation of S-compounds, total AA, carbohydrates, polar lipids and total RNA in the mutant plants. Significantly, a failure to balance the carbon backbones was evident in the mutants, indicated by an increase in tricarboxylic acid cycle (TCA) cycle intermediates, whereas a decrease was shown in stressed wild-type plants. These results indicate that the role of SO is not limited to a rescue reaction under elevated sulfite, but SO is a key player in maintaining optimal carbon, nitrogen and sulfur metabolism in tomato plants.
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Affiliation(s)
- Galina Brychkova
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Dmitry Yarmolinsky
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Albert Batushansky
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Vladislav Grishkevich
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Inna Khozin-Goldberg
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Aaron Fait
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
| | - Rachel Amir
- Migal-Galilee Technology Center, Southern Industrial Zone, POB831 Kiryat-Shmona 11016, Israel.
| | - Robert Fluhr
- Department of Plant Sciences, Weizmann Institute of Science, P.O.B. 26 Rehovot 76100, Israel.
| | - Moshe Sagi
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel.
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Considine MJ, Foyer CH. Metabolic responses to sulfur dioxide in grapevine (Vitis vinifera L.): photosynthetic tissues and berries. FRONTIERS IN PLANT SCIENCE 2015; 6:60. [PMID: 25750643 PMCID: PMC4335272 DOI: 10.3389/fpls.2015.00060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/22/2015] [Indexed: 05/20/2023]
Abstract
Research on sulfur metabolism in plants has historically been undertaken within the context of industrial pollution. Resolution of the problem of sulfur pollution has led to sulfur deficiency in many soils. Key questions remain concerning how different plant organs deal with reactive and potentially toxic sulfur metabolites. In this review, we discuss sulfur dioxide/sulfite assimilation in grape berries in relation to gene expression and quality traits, features that remain significant to the food industry. We consider the intrinsic metabolism of sulfite and its consequences for fruit biology and postharvest physiology, comparing the different responses in fruit and leaves. We also highlight inconsistencies in what is considered the "ambient" environmental or industrial exposures to SO2. We discuss these findings in relation to the persistent threat to the table grape industry that intergovernmental agencies will revoke the industry's exemption to the worldwide ban on the use of SO2 for preservation of fresh foods. Transcriptome profiling studies on fruit suggest that added value may accrue from effects of SO2 fumigation on the expression of genes encoding components involved in processes that underpin traits related to customer satisfaction, particularly in table grapes, where SO2 fumigation may extend for several months.
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Affiliation(s)
- Michael J. Considine
- School of Plant Biology, and The UWA Institute of Agriculture, University of Western Australia, Crawley, WA, Australia
- Centre for Plant Sciences, School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds, Yorkshire, UK
- Irrigated Agriculture and Diversification, Department of Agriculture and Food Western Australia, South Perth, WA, Australia
| | - Christine H. Foyer
- School of Plant Biology, and The UWA Institute of Agriculture, University of Western Australia, Crawley, WA, Australia
- Centre for Plant Sciences, School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds, Yorkshire, UK
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Rennenberg H, Herschbach C. A detailed view on sulphur metabolism at the cellular and whole-plant level illustrates challenges in metabolite flux analyses. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:5711-24. [PMID: 25124317 DOI: 10.1093/jxb/eru315] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Understanding the dynamics of physiological process in the systems biology era requires approaches at the genome, transcriptome, proteome, and metabolome levels. In this context, metabolite flux experiments have been used in mapping metabolite pathways and analysing metabolic control. In the present review, sulphur metabolism was taken to illustrate current challenges of metabolic flux analyses. At the cellular level, restrictions in metabolite flux analyses originate from incomplete knowledge of the compartmentation network of metabolic pathways. Transport of metabolites through membranes is usually not considered in flux experiments but may be involved in controlling the whole pathway. Hence, steady-state and snapshot readings need to be expanded to time-course studies in combination with compartment-specific metabolite analyses. Because of species-specific differences, differences between tissues, and stress-related responses, the quantitative significance of different sulphur sinks has to be elucidated; this requires the development of methods for whole-sulphur metabolome approaches. Different cell types can contribute to metabolite fluxes to different extents at the tissue and organ level. Cell type-specific analyses are needed to characterize these contributions. Based on such approaches, metabolite flux analyses can be expanded to the whole-plant level by considering long-distance transport and, thus, the interaction of roots and the shoot in metabolite fluxes. However, whole-plant studies need detailed empirical and mathematical modelling that have to be validated by experimental analyses.
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Affiliation(s)
- Heinz Rennenberg
- Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Koehler-Allee 53, 79110 Freiburg, Germany Centre for Biosystems Analysis (ZBSA), University of Freiburg, Habsburgerstrasse 49, 79104 Freiburg, Germany
| | - Cornelia Herschbach
- Institute of Forest Sciences, Chair of Tree Physiology, University of Freiburg, Georges-Koehler-Allee 53, 79110 Freiburg, Germany
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Comparative analyses of physiological responses of Cynodon dactylon accessions from Southwest China to sulfur dioxide toxicity. ScientificWorldJournal 2014; 2014:916595. [PMID: 25097893 PMCID: PMC4109121 DOI: 10.1155/2014/916595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/26/2014] [Indexed: 12/02/2022] Open
Abstract
Sulfur dioxide (SO2), a major air pollutant in developing countries, is highly toxic to plants. To achieve better air quality and landscape, planting appropriate grass species in severe SO2 polluted areas is very critical. Cynodon dactylon, a widely used warm season turfgrass species, has good SO2-tolerant ability. In this study, we selected 9 out of 38 C. dactylon accessions from Southwest China as representatives of high, intermediate SO2-tolerant and SO2-sensitive accessions to comparatively analyze their physiological differences in leaves under SO2 untreated and treated conditions. Our results revealed that SO2-tolerant C. dactylon accessions showed higher soluble sugar, proline, and chlorophyll a contents under both SO2 treated and untreated conditions; higher chlorophyll b and carotenoid under SO2 treated condition; lower reactive oxygen species (ROS) level, oxidative damages, and superoxide dismutase (SOD) activities under SO2 treated condition; and higher peroxidase (POD) activities under SO2 untreated condition. Further results indicated that SO2-tolerant C. dactylon accessions had higher sulfur contents under both SO2 treated and untreated conditions, consistent with higher SO activities under both SO2 treated and untreated conditions, and higher SiR activities under SO2 treated condition. Taken together, our results indicated that SO2 tolerance of C. dactylon might be largely related to soluble sugar, proline and chlorophyll a contents, and SO enzyme activity.
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Yarmolinsky D, Brychkova G, Kurmanbayeva A, Bekturova A, Ventura Y, Khozin-Goldberg I, Eppel A, Fluhr R, Sagi M. Impairment in Sulfite Reductase Leads to Early Leaf Senescence in Tomato Plants. PLANT PHYSIOLOGY 2014; 165:1505-1520. [PMID: 24987017 PMCID: PMC4119034 DOI: 10.1104/pp.114.241356] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/30/2014] [Indexed: 05/03/2023]
Abstract
Sulfite reductase (SiR) is an essential enzyme of the sulfate assimilation reductive pathway, which catalyzes the reduction of sulfite to sulfide. Here, we show that tomato (Solanum lycopersicum) plants with impaired SiR expression due to RNA interference (SIR Ri) developed early leaf senescence. The visual chlorophyll degradation in leaves of SIR Ri mutants was accompanied by a reduction of maximal quantum yield, as well as accumulation of hydrogen peroxide and malondialdehyde, a product of lipid peroxidation. Interestingly, messenger RNA transcripts and proteins involved in chlorophyll breakdown in the chloroplasts were found to be enhanced in the mutants, while transcripts and their plastidic proteins, functioning in photosystem II, were reduced in these mutants compared with wild-type leaves. As a consequence of SiR impairment, the levels of sulfite, sulfate, and thiosulfate were higher and glutathione levels were lower compared with the wild type. Unexpectedly, in a futile attempt to compensate for the low glutathione, the activity of adenosine-5'-phosphosulfate reductase was enhanced, leading to further sulfite accumulation in SIR Ri plants. Increased sulfite oxidation to sulfate and incorporation of sulfite into sulfoquinovosyl diacylglycerols were not sufficient to maintain low basal sulfite levels, resulting in accumulative leaf damage in mutant leaves. Our results indicate that, in addition to its biosynthetic role, SiR plays an important role in prevention of premature senescence. The higher sulfite is likely the main reason for the initiation of chlorophyll degradation, while the lower glutathione as well as the higher hydrogen peroxide and malondialdehyde additionally contribute to premature senescence in mutant leaves.
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Affiliation(s)
- Dmitry Yarmolinsky
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Galina Brychkova
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Assylay Kurmanbayeva
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Aizat Bekturova
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Yvonne Ventura
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Inna Khozin-Goldberg
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Amir Eppel
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Robert Fluhr
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
| | - Moshe Sagi
- The Jacob Blaustein Institute for Desert Research, Albert Katz Department of Dryland Biotechnologies, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel (D.Y., G.B., A.K., A.B., Y.V., I.K.-G., A.E., M.S.); andDepartment of Plant Sciences, Weizmann Institute of Science, Rehovot 76100, Israel (R.F.)
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Zhao J, Yi H. Genome-wide transcriptome analysis of Arabidopsis response to sulfur dioxide fumigation. Mol Genet Genomics 2014; 289:989-99. [PMID: 24889700 DOI: 10.1007/s00438-014-0870-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 05/15/2014] [Indexed: 01/27/2023]
Abstract
Sulfur dioxide (SO2) supplies the basic sulfur element to promote plant growth, yet at the same time it is a harmful air pollutant. Currently, the mechanisms of plant adaptation to SO2 stress are largely unknown. Pathways of SO2 metabolism, a range of networks of interacting regulatory signals and defense mechanisms triggered in resistance to SO2 stress, have not yet been clarified. We performed transcriptome analysis of Arabidopsis plants fumigated with 30 mg m(-3) SO2 for 72 h and untreated controls using microarrays. This identified 2,780 significantly up- or down-regulated genes in plants response to SO2 stress, indicating a possible genome-scale reprogramming of the transcriptome. Significant changes in the transcript abundance of genes that participated in SO2 metabolic pathways indicated that numerous sulfites were involved in sulfur assimilatory pathways directly and away from sulfite oxidative pathways. Furthermore, the up-regulation of components involved in reactive oxygen species generating and scavenging pathways demonstrated altered redox homeostasis. Transcripts encoding key components in nitric oxide biosynthesis pathways were simultaneously up-regulated by SO2 exposure. In addition, transcripts associated with putative biotic stress were also up-regulated. Therefore, SO2 evokes a comprehensive reprogramming of metabolic pathways, consistent with up-regulation of transcripts involved in tolerance and defense mechanisms, in Arabidopsis.
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Affiliation(s)
- Jun Zhao
- School of Life Science, Shanxi University, No. 92 Wucheng Road, Taiyuan, 030006, China,
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Krüßel L, Junemann J, Wirtz M, Birke H, Thornton JD, Browning LW, Poschet G, Hell R, Balk J, Braun HP, Hildebrandt TM. The mitochondrial sulfur dioxygenase ETHYLMALONIC ENCEPHALOPATHY PROTEIN1 is required for amino acid catabolism during carbohydrate starvation and embryo development in Arabidopsis. PLANT PHYSIOLOGY 2014; 165:92-104. [PMID: 24692429 PMCID: PMC4012607 DOI: 10.1104/pp.114.239764] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The sulfur dioxygenase ETHYLMALONIC ENCEPHALOPATHY PROTEIN1 (ETHE1) catalyzes the oxidation of persulfides in the mitochondrial matrix and is essential for early embryo development in Arabidopsis (Arabidopsis thaliana). We investigated the biochemical and physiological functions of ETHE1 in plant metabolism using recombinant Arabidopsis ETHE1 and three transfer DNA insertion lines with 50% to 99% decreased sulfur dioxygenase activity. Our results identified a new mitochondrial pathway catalyzing the detoxification of reduced sulfur species derived from cysteine catabolism by oxidation to thiosulfate. Knockdown of the sulfur dioxygenase impaired embryo development and produced phenotypes of starvation-induced chlorosis during short-day growth conditions and extended darkness, indicating that ETHE1 has a key function in situations of high protein turnover, such as seed production and the use of amino acids as alternative respiratory substrates during carbohydrate starvation. The amino acid profile of mutant plants was similar to that caused by defects in the electron-transfer flavoprotein/electron-transfer flavoprotein:ubiquinone oxidoreductase complex and associated dehydrogenases. Thus, in addition to sulfur amino acid catabolism, ETHE1 also affects the oxidation of branched-chain amino acids and lysine.
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