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Charras Q, Rey P, Guillemain D, Dourguin F, Laganier H, Peschoux S, Molinié R, Ismaël M, Caffarri S, Rayon C, Jungas C. An efficient protocol for extracting thylakoid membranes and total leaf proteins from Posidonia oceanica and other polyphenol-rich plants. PLANT METHODS 2024; 20:38. [PMID: 38468328 DOI: 10.1186/s13007-024-01166-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND The extraction of thylakoids is an essential step in studying the structure of photosynthetic complexes and several other aspects of the photosynthetic process in plants. Conventional protocols have been developed for selected land plants grown in controlled conditions. Plants accumulate defensive chemical compounds such as polyphenols to cope with environmental stresses. When the polyphenol levels are high, their oxidation and cross-linking properties prevent thylakoid extraction. RESULTS In this study, we developed a method to counteract the hindering effects of polyphenols by modifying the grinding buffer with the addition of both vitamin C (VitC) and polyethylene glycol (PEG4000). This protocol was first applied to the marine plant Posidonia oceanica and then extended to other plants synthesizing substantial amounts of polyphenols, such as Quercus pubescens (oak) and Vitis vinifera (grapevine). Native gel analysis showed that photosynthetic complexes (PSII, PSI, and LHCII) can be extracted from purified membranes and fractionated comparably to those extracted from the model plant Arabidopsis thaliana. Moreover, total protein extraction from frozen P. oceanica leaves was also efficiently carried out using a denaturing buffer containing PEG and VitC. CONCLUSIONS Our work shows that the use of PEG and VitC significantly improves the isolation of native thylakoids, native photosynthetic complexes, and total proteins from plants containing high amounts of polyphenols and thus enables studies on photosynthesis in various plant species grown in natural conditions.
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Affiliation(s)
- Quentin Charras
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH-Royal Institute of Technology, KTH University, Stockholm, Sweden
| | - Pascal Rey
- CEA, CNRS, BIAM, P&E Team, Aix-Marseille University, Saint Paul-Lez-Durance, France
| | - Dorian Guillemain
- CNRS, IRD, IRSTEA, OSU Institut Pythéas, Aix-Marseille University, Marseille, France
| | - Fabian Dourguin
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Hugo Laganier
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Sacha Peschoux
- UFR Informatique, mathématiques et mathématiques appliquées (IM2AG), Université Grenoble Alpes, Saint Martin d'Heres, France
| | - Roland Molinié
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Marwa Ismaël
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Stefano Caffarri
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France
| | - Catherine Rayon
- UMR INRAE 1158 Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UPJV, Amiens, France
| | - Colette Jungas
- CEA, CNRS, BIAM, LGBP Team, Aix-Marseille University, Marseille, France.
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Studying the Physiological Reactions of C4 Grasses in Order to Select Them for Cultivation on Marginal Lands. SUSTAINABILITY 2022. [DOI: 10.3390/su14084512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
One of the problems of sustainable agricultural land management (SALM) is the competition between food production and biomass production. For this reason, marginal lands with unfavorable agrotechnical conditions have been proposed for non-food crops in recent years. To this end, a better understanding of the impact of environmental factors on crop development and yield is needed. The objective of the study was to investigate the effects of soil water availability on selected morphological, physiological and growth characteristics of four C4 grass species (Miscanthus × giganteus, Miscanthus sacchariflorus, Miscanthus sinensis and Spartina pectinate) growing under different water and fertilizer conditions. A pot experiment was conducted under greenhouse conditions with four grass species, three different water rates (100, 85 and 70%) and three fertilizer rates (270, 180 and 90 kg NPK ha−1). The study showed that water stress, regardless of plant species, increased the chlorophyll content index without affecting the photosynthetic efficiency of the plants. Water stress significantly decreased plant fresh and dry mass, shoot number and length, and shoot/leaf ratio. The response to water deficit depended on the plant species. Miscanthus sinensis was the most sensitive to water deficit and Spartina pectinate the most tolerant (reduction in dry mass of 41.5% and 18%, respectively). Water stress (85% and 70%) reduced the number and the length of shoots without affecting the average diameter of shoots of the tested grasses, resulting in a significant reduction in biomass production of plants grown under optimal conditions with mineral NPK fertilization (180 kg NPK ha−1). Miscanthus sacchariflorus showed the highest dry matter under the worst growing conditions (70% and 90 NPK) and therefore could be recommended for cultivation on marginal lands with unfavorable agrotechnical conditions. It should be emphasized that the high yield of this species was not due to the photosynthetic efficiency, but better growth stem parameters (length and number). It appears that, for long-term agricultural land management, it is preferable to determine fertilizer rates for each crop species based on soil water availability. It should also be emphasized that increasing the yield of potential lignocellulosic crops for energy purposes while reducing environmental impact appears to be one of the viable answers to the difficulties of conventional energy production.
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Asrar H, Hussain T, Qasim M, Nielsen BL, Gul B, Khan MA. Salt induced modulations in antioxidative defense system of Desmostachya bipinnata. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 147:113-124. [PMID: 31855817 DOI: 10.1016/j.plaphy.2019.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
This study addressed the interactions between salt stress and the antioxidant responses of a halophytic grass, Desmostachya bipinnata. Plants were grown in a semi-hydroponic system and treated with different NaCl concentrations (0 mM, 100 mM, 400 mM) for a month. ROS degradation enzyme activities were stimulated by addition of NaCl. Synthesis of antioxidant compounds, such as phenols, was enhanced in the presence of NaCl leading to accumulation of these compounds under moderate salinity. However, when the ROS production rate exceeded the capacity of enzyme-controlled degradation, antioxidant compounds were consumed and oxidative damage was indicated by significant levels of hydrogen peroxide at high salinity. The cellular concentration of salicylic acid increased upon salt stress, but since no direct interaction with ROS was detected, a messenger function may be postulated. High salinity treatment caused a significant decrease of plant growth parameters, whereas treatment with moderate salinity resulted in optimal growth. The activity and abundance of superoxide dismutase (SOD) increased with salinity, but the abundance of SOD isoforms was differentially affected, depending on the NaCl concentration applied. Detoxification of hydrogen peroxide (H2O2) was executed by catalase and guaiacol peroxidase at moderate salinity, whereas the enzymes detoxifying H2O2 through the ascorbate/glutathione cycle dominated at high salinity. The redox status of glutathione was impaired at moderate salinity, whereas the levels of both ascorbate and glutathione significantly decreased only at high salinity. Apparently, the maximal activation of enzyme-controlled ROS degradation was insufficient in comparison to the ROS production at high salinity. As a result, ROS-induced damage could not be prevented, if the applied stress exceeded a critical value in D. bipinnata plants.
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Affiliation(s)
- Hina Asrar
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan
| | - Tabassum Hussain
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Qasim
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan
| | - Brent L Nielsen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT, 84602, USA
| | - Bilquees Gul
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan.
| | - M Ajmal Khan
- Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan
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Physiological Roles of Plant Methionine Sulfoxide Reductases in Redox Homeostasis and Signaling. Antioxidants (Basel) 2018; 7:antiox7090114. [PMID: 30158486 PMCID: PMC6162775 DOI: 10.3390/antiox7090114] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/24/2018] [Accepted: 08/26/2018] [Indexed: 01/09/2023] Open
Abstract
Oxidation of methionine (Met) leads to the formation of two S- and R-diastereoisomers of Met sulfoxide (MetO) that are reduced back to Met by methionine sulfoxide reductases (MSRs), A and B, respectively. Here, we review the current knowledge about the physiological functions of plant MSRs in relation with subcellular and tissue distribution, expression patterns, mutant phenotypes, and possible targets. The data gained from modified lines of plant models and crop species indicate that MSRs play protective roles upon abiotic and biotic environmental constraints. They also participate in the control of the ageing process, as shown in seeds subjected to adverse conditions. Significant advances were achieved towards understanding how MSRs could fulfil these functions via the identification of partners among Met-rich or MetO-containing proteins, notably by using redox proteomic approaches. In addition to a global protective role against oxidative damage in proteins, plant MSRs could specifically preserve the activity of stress responsive effectors such as glutathione-S-transferases and chaperones. Moreover, several lines of evidence indicate that MSRs fulfil key signaling roles via interplays with Ca2+- and phosphorylation-dependent cascades, thus transmitting ROS-related information in transduction pathways.
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de Melo HF, de Souza ER, de Almeida BG, Mulas M. Water potential in soil and Atriplex nummularia (phytoremediator halophyte) under drought and salt stresses. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:249-255. [PMID: 29053341 DOI: 10.1080/15226514.2017.1374334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Atriplex nummularia is a halophyte widely employed to recover saline soils and was used as a model to evaluate the water potentials in the soil-plant system under drought and salt stresses. Potted plants grown under 70 and 37% of field capacity irrigated with solutions of NaCl and of a mixture of NaCl, KCl, MgCl2 and CaCl2 reproducing six electrical conductivity (EC): 0, 5, 10, 20, 30, and 40 dS m-1. After 100 days, total water (Ψw, plant) and osmotic (Ψo, plant) potentials at predawn and midday and Ψo, soil, matric potential (Ψm, soil) and Ψw, soil were determined. The type of ion in the irrigation water did not influence the soil potential, but was altered by EC. The soil Ψo component was the largest contributor to Ψw, soil. Atriplex is surviving ECs close to 40 dS m-1 due to the decrease in the Ψw. The plants reached a Ψw of approximately -8 MPa. The water potentials determined for different moisture levels, EC levels and salt types showed huge importance for the management of this species in semiarid regions and can be used to recover salt affected soils.
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Affiliation(s)
- Hidelblandi Farias de Melo
- a Federal Rural University of Pernambuco - UFRPE, Department of Agronomy , Rua Dom Manuel de Medeiros , Recife , Pernambuco , Brazil
| | - Edivan Rodrigues de Souza
- a Federal Rural University of Pernambuco - UFRPE, Department of Agronomy , Rua Dom Manuel de Medeiros , Recife , Pernambuco , Brazil
| | - Brivaldo Gomes de Almeida
- a Federal Rural University of Pernambuco - UFRPE, Department of Agronomy , Rua Dom Manuel de Medeiros , Recife , Pernambuco , Brazil
| | - Maurizio Mulas
- b University of Sassari , Department of Sciences of Nature and of Land , Sassari , Italy
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Hamdani F, Derridj A, Rogers HJ. Multiple mechanisms mediate growth and survival in young seedlings of two populations of the halophyte Atriplex halimus (L.) subjected to long single-step salinity treatments. FUNCTIONAL PLANT BIOLOGY : FPB 2017; 44:761-773. [PMID: 32480605 DOI: 10.1071/fp17026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 05/04/2017] [Indexed: 06/11/2023]
Abstract
Understanding how halophytes survive high soil salinity in realistic long-term experiments is important for strategies to mitigate the effects of increasing soil salinity worldwide. Protective mechanisms in halophytes enabling survival include sequestration of salt via Na+/H+ antiporters, synthesis and accumulation of osmolytes, and activation of protective mechanisms against reactive oxygen species (ROS). Protective mechanisms elicited by a single step-up to a range of NaCl treatments (34-256mM) in two populations of the halophyte Atriplex halimus L. from contrasting environments (arid steppe and saline coastline) were compared over 6 weeks. The coastal population survived significantly better at high salinity compared with the steppe population, although in both populations, salinity inhibited growth. Increased Na+ and K+ concentration was accompanied by higher induction of Na+/H+ antiporter gene expression in coastal than in steppe population leaves. Osmolytes increased more significantly in the coastal than in the steppe population with greater induction of choline mono-oxygenase gene expression. Activation of ROS scavenging mechanisms was greater in coastal than in steppe plants. Differential responses found through time, in different salt concentrations, and between leaves and roots indicate a finely tuned response. Sharp changes in responses at 171mM NaCl indicate that different mechanisms may be invoked at different stress levels.
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Affiliation(s)
- Faiza Hamdani
- Faculté des Sciences Biologiques et des Sciences Agronomiques, Université Mouloud Mammeri de Tizi-Ouzou, 15000 Tizi-Ouzou, Algeria
| | - Arezki Derridj
- Faculté des Sciences Biologiques et des Sciences Agronomiques, Université Mouloud Mammeri de Tizi-Ouzou, 15000 Tizi-Ouzou, Algeria
| | - Hilary J Rogers
- School of Biosciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
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Aymen S, Morena G, Vincenzo L, Laura P, Lorenza B, Abderrazak S, Chedly A, Karim BH. Salt tolerance of the halophyte Limonium delicatulum is more associated with antioxidant enzyme activities than phenolic compounds. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:607-619. [PMID: 32480490 DOI: 10.1071/fp15284] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 03/06/2016] [Indexed: 05/25/2023]
Abstract
In this work we studied the effect of salinity (ranging from 50 to 500mM NaCl) on the physiological and the antioxidant responses of the local halophyte Limonium delicatulum Kuntze. We based our analysis on 12 biochemical assays that are commonly used to measure the antioxidant responses under stress such as oxidative stress markers, enzymes activities and polyphenolic compounds. Our aim was to study parameters that are strongly correlated with the growth response to salinity. Results showed two different growth responses depending on the concentration of NaCl in the medium. Under 50 to 200mM, the growth was stimulated before it decreased significantly at 300-500mM. L. delicatulum revealed a good aptitude to maintain photosynthetic machinery by increasing the concentrations of photosynthetic pigments, which is essential for the stabilisation of photosystems and the photosynthesis process under optimal NaCl concentration. Their breakdown at higher salinity decreased the photosynthetic performance of plants resulting in growth inhibition. Moreover, to reduce the damaging effect of oxidative stress and to tolerate the accumulation of salt ions, L. delicatulum induced the activities of their antioxidant enzymes more than their contents in polyphenolic compounds.
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Affiliation(s)
- Souid Aymen
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Gabriele Morena
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Longo Vincenzo
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Pucci Laura
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Bellani Lorenza
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Smaoui Abderrazak
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Abdelly Chedly
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Ben Hamed Karim
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
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Pan YQ, Guo H, Wang SM, Zhao B, Zhang JL, Ma Q, Yin HJ, Bao AK. The Photosynthesis, Na(+)/K(+) Homeostasis and Osmotic Adjustment of Atriplex canescens in Response to Salinity. FRONTIERS IN PLANT SCIENCE 2016; 7:848. [PMID: 27379134 PMCID: PMC4911392 DOI: 10.3389/fpls.2016.00848] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/30/2016] [Indexed: 05/21/2023]
Abstract
Atriplex canescens (fourwing saltbush) is a C4 perennial fodder shrub with excellent resistance to salinity. However, the mechanisms underlying the salt tolerance in A. canescens are poorly understood. In this study, 5-weeks-old A. canescens seedlings were treated with various concentrations of external NaCl (0-400 mM). The results showed that the growth of A. canescens seedlings was significantly stimulated by moderate salinity (100 mM NaCl) and unaffected by high salinity (200 or 400 mM NaCl). Furthermore, A. canescens seedlings showed higher photosynthetic capacity under NaCl treatments (except for 100 mM NaCl treatment) with significant increases in net photosynthetic rate and water use efficiency. Under saline conditions, the A. canescens seedlings accumulated more Na(+) in either plant tissues or salt bladders, and also retained relatively constant K(+) in leaf tissues and bladders by enhancing the selective transport capacity for K(+) over Na(+) (ST value) from stem to leaf and from leaf to bladder. External NaCl treatments on A. canescens seedlings had no adverse impact on leaf relative water content, and this resulted from lower leaf osmotic potential under the salinity conditions. The contribution of Na(+) to the leaf osmotic potential (Ψs) was sharply enhanced from 2% in control plants to 49% in plants subjected to 400 mM NaCl. However, the contribution of K(+) to Ψs showed a significant decrease from 34% (control) to 9% under 400 mM NaCl. Interestingly, concentrations of betaine and free proline showed significant increase in the leaves of A. canescens seedlings, these compatible solutes presented up to 12% of contribution to Ψs under high salinity. These findings suggest that, under saline environments, A. canescens is able to enhance photosynthetic capacity, increase Na(+) accumulation in tissues and salt bladders, maintain relative K(+) homeostasis in leaves, and use inorganic ions and compatible solutes for osmotic adjustment which may contribute to the improvement of water status in plant.
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Affiliation(s)
- Ya-Qing Pan
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Huan Guo
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Suo-Min Wang
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Bingyu Zhao
- Department of Horticulture, Virginia Polytechnic Institute and State UniversityBlacksburg, VA, USA
| | - Jin-Lin Zhang
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Qing Ma
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Hong-Ju Yin
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
| | - Ai-Ke Bao
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou UniversityLanzhou, China
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Sun X, Sun M, Jia B, Qin Z, Yang K, Chen C, Yu Q, Zhu Y. A Glycine soja methionine sulfoxide reductase B5a interacts with the Ca(2+) /CAM-binding kinase GsCBRLK and activates ROS signaling under carbonate alkaline stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 86:514-529. [PMID: 27121031 DOI: 10.1111/tpj.13187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 06/05/2023]
Abstract
Although research has extensively illustrated the molecular basis of plant responses to salt and high-pH stresses, knowledge on carbonate alkaline stress is poor and the specific responsive mechanism remains elusive. We have previously characterized a Glycine soja Ca(2+) /CAM-dependent kinase GsCBRLK that could increase salt tolerance. Here, we characterize a methionine sulfoxide reductase (MSR) B protein GsMSRB5a as a GsCBRLK interactor by using Y2H and BiFc assays. Further analyses showed that the N-terminal variable domain of GsCBRLK contributed to the GsMSRB5a interaction. Y2H assays also revealed the interaction specificity of GsCBRLK with the wild soybean MSRB subfamily proteins, and determined that the BoxI/BoxII-containing regions within GsMSRBs were responsible for their interaction. Furthermore, we also illustrated that the N-terminal basic regions in GsMSRBs functioned as transit peptides, which targeted themselves into chloroplasts and thereby prevented their interaction with GsCBRLK. Nevertheless, deletion of these regions allowed them to localize on the plasma membrane (PM) and interact with GsCBRLK. In addition, we also showed that GsMSRB5a and GsCBRLK displayed overlapping tissue expression specificity and coincident expression patterns under carbonate alkaline stress. Phenotypic experiments demonstrated that GsMSRB5a and GsCBRLK overexpression in Arabidopsis enhanced carbonate alkaline stress tolerance. Further investigations elucidated that GsMSRB5a and GsCBRLK inhibited reactive oxygen species (ROS) accumulation by modifying the expression of ROS signaling, biosynthesis and scavenging genes. Summarily, our results demonstrated that GsCBRLK and GsMSRB5a interacted with each other, and activated ROS signaling under carbonate alkaline stress.
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Affiliation(s)
- Xiaoli Sun
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Mingzhe Sun
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
| | - Bowei Jia
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
| | - Zhiwei Qin
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
| | - Kejun Yang
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Chao Chen
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
| | - Qingyue Yu
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
| | - Yanming Zhu
- Crop Stress Molecular Biology Laboratory, Heilongjiang Bayi Agricultural University, Daqing, China
- Plant Bioengineering Laboratory, Northeast Agricultural University, Harbin, China
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Cerveau D, Ouahrani D, Marok MA, Blanchard L, Rey P. Physiological relevance of plant 2-Cys peroxiredoxin overoxidation level and oligomerization status. PLANT, CELL & ENVIRONMENT 2016; 39:103-19. [PMID: 26138759 DOI: 10.1111/pce.12596] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 06/15/2015] [Accepted: 06/19/2015] [Indexed: 05/10/2023]
Abstract
Peroxiredoxins are ubiquitous thioredoxin-dependent peroxidases presumed to display, upon environmental constraints, a chaperone function resulting from a redox-dependent conformational switch. In this work, using biochemical and genetic approaches, we aimed to unravel the factors regulating the redox status and the conformation of the plastidial 2-Cys peroxiredoxin (2-Cys PRX) in plants. In Arabidopsis, we show that in optimal growth conditions, the overoxidation level mainly depends on the availability of thioredoxin-related electron donors, but not on sulfiredoxin, the enzyme reducing the 2-Cys PRX overoxidized form. We also observed that upon various physiological temperature, osmotic and light stress conditions, the overoxidation level and oligomerization status of 2-Cys PRX can moderately vary depending on the constraint type. Further, no major change was noticed regarding protein conformation in water-stressed Arabidopsis, barley and potato plants, whereas species-dependent up- and down-variations in overoxidation were observed. In contrast, both 2-Cys PRX overoxidation and oligomerization were strongly induced during a severe oxidative stress generated by methyl viologen. From these data, revealing that the oligomerization status of plant 2-Cys PRX does not exhibit important variation and is not tightly linked to the protein redox status upon physiologically relevant environmental constraints, the possible in planta functions of 2-Cys PRX are discussed.
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Affiliation(s)
- Delphine Cerveau
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
| | - Djelloul Ouahrani
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
| | - Mohamed Amine Marok
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
- Université de Khemis Miliana, Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre, Ain Defla, Khemis Miliana, 44225, Algérie
| | - Laurence Blanchard
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
- CEA, DSV, IBEB, Laboratoire de Bioénergétique Cellulaire, Saint-Paul-lez-Durance, F-13108, France
| | - Pascal Rey
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France
- CNRS, UMR 7265, Biologie Végétale and Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France
- Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France
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Chen C, Song Y, Zhuang K, Li L, Xia Y, Shen Z. Proteomic Analysis of Copper-Binding Proteins in Excess Copper-Stressed Roots of Two Rice (Oryza sativa L.) Varieties with Different Cu Tolerances. PLoS One 2015; 10:e0125367. [PMID: 25919452 PMCID: PMC4412397 DOI: 10.1371/journal.pone.0125367] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 03/12/2015] [Indexed: 12/30/2022] Open
Abstract
To better understand the mechanisms involved in the heavy metal stress response and tolerance in plants, a proteomic approach was used to investigate the differences in Cu-binding protein expression in Cu-tolerant and Cu-sensitive rice varieties. Cu-binding proteins from Cu-treated rice roots were separated using a new IMAC method in which an IDA-sepharose column was applied prior to the Cu-IMAC column to remove metal ions from protein samples. More than 300 protein spots were reproducibly detected in the 2D gel. Thirty-five protein spots exhibited changes greater than 1.5-fold in intensity compared to the control. Twenty-four proteins contained one or more of nine putative metal-binding motifs reported by Smith et al., and 19 proteins (spots) contained one to three of the top six motifs reported by Kung et al. The intensities of seven protein spots were increased in the Cu-tolerant variety B1139 compared to the Cu-sensitive variety B1195 (p<0.05) and six protein spots were markedly up-regulated in B1139, but not detectable in B1195. Four protein spots were significantly up-regulated in B1139, but unchanged in B1195 under Cu stress. In contrast, two protein spots were significantly down-regulated in B1195, but unchanged in B1139. These Cu-responsive proteins included those involved in antioxidant defense and detoxification (spots 5, 16, 21, 22, 28, 29 and 33), pathogenesis (spots 5, 16, 21, 22, 28, 29 and 33), regulation of gene transcription (spots 8 and 34), amino acid synthesis (spots 8 and 34), protein synthesis, modification, transport and degradation (spots 1, 2, 4, 10, 15, 19, 30, 31, 32 and 35), cell wall synthesis (spot 14), molecular signaling (spot 3), and salt stress (spots 7, 9 and 27); together with other proteins, such as a putative glyoxylate induced protein, proteins containing dimeric alpha-beta barrel domains, and adenosine kinase-like proteins. Our results suggest that these proteins, together with related physiological processes, play an important role in the detoxification of excess Cu and in maintaining cellular homeostasis.
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Affiliation(s)
- Chen Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Yufeng Song
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Kai Zhuang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Lu Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Yan Xia
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Zhenguo Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, People’s Republic of China
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Rey P, Sanz-Barrio R, Innocenti G, Ksas B, Courteille A, Rumeau D, Issakidis-Bourguet E, Farran I. Overexpression of plastidial thioredoxins f and m differentially alters photosynthetic activity and response to oxidative stress in tobacco plants. FRONTIERS IN PLANT SCIENCE 2013; 4:390. [PMID: 24137166 PMCID: PMC3797462 DOI: 10.3389/fpls.2013.00390] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 09/12/2013] [Indexed: 05/07/2023]
Abstract
Plants display a remarkable diversity of thioredoxins (Trxs), reductases controlling the thiol redox status of proteins. The physiological function of many of them remains elusive, particularly for plastidial Trxs f and m, which are presumed based on biochemical data to regulate photosynthetic reactions and carbon metabolism. Recent reports revealed that Trxs f and m participate in vivo in the control of starch metabolism and cyclic photosynthetic electron transfer around photosystem I, respectively. To further delineate their in planta function, we compared the photosynthetic characteristics, the level and/or activity of various Trx targets and the responses to oxidative stress in transplastomic tobacco plants overexpressing either Trx f or Trx m. We found that plants overexpressing Trx m specifically exhibit altered growth, reduced chlorophyll content, impaired photosynthetic linear electron transfer and decreased pools of glutathione and ascorbate. In both transplastomic lines, activities of two enzymes involved in carbon metabolism, NADP-malate dehydrogenase and NADP-glyceraldehyde-3-phosphate dehydrogenase are markedly and similarly altered. In contrast, plants overexpressing Trx m specifically display increased capacity for methionine sulfoxide reductases, enzymes repairing damaged proteins by regenerating methionine from oxidized methionine. Finally, we also observed that transplastomic plants exhibit distinct responses when exposed to oxidative stress conditions generated by methyl viologen or exposure to high light combined with low temperature, the plants overexpressing Trx m being notably more tolerant than Wt and those overexpressing Trx f. Altogether, these data indicate that Trxs f and m fulfill distinct physiological functions. They prompt us to propose that the m type is involved in key processes linking photosynthetic activity, redox homeostasis and antioxidant mechanisms in the chloroplast.
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Affiliation(s)
- Pascal Rey
- Laboratoire d’Ecophysiologie Moléculaire des Plantes, Institut de Biologie Environnementale et Biotechnologie, Direction des Sciences du Vivant, Commissariat à l’Energie AtomiqueSaint-Paul-lez-Durance, France
- UMR 7265 Service de Biologie Végétale et de Microbiologie Environnementales, Centre National de la Recherche ScientifiqueSaint-Paul-lez-Durance, France
- Aix-Marseille Université Saint-Paul-lez-Durance, France
- *Correspondence: Pascal Rey, Laboratoire d’Ecophysiologie Moléculaire des Plantes, Institut de Biologie Environnementale et Biotechnologie, Direction des Sciences du Vivant, Commissariat à l’Energie Atomique, Bâtiment 158, SBVME, CEA-Cadarache, 13108 Saint-Paul-Lez-Durance Cedex, France e-mail:
| | - Ruth Sanz-Barrio
- Instituto de Agrobiotecnología, Universidad Pública de Navarra-Consejo Superior de Investigaciones CientíficasPamplona, Spain
| | - Gilles Innocenti
- UMR 8618 Institut de Biologie des Plantes, Centre National de la Recherche Scientifique, Université Paris-SudOrsay, France
| | - Brigitte Ksas
- Laboratoire d’Ecophysiologie Moléculaire des Plantes, Institut de Biologie Environnementale et Biotechnologie, Direction des Sciences du Vivant, Commissariat à l’Energie AtomiqueSaint-Paul-lez-Durance, France
- UMR 7265 Service de Biologie Végétale et de Microbiologie Environnementales, Centre National de la Recherche ScientifiqueSaint-Paul-lez-Durance, France
- Aix-Marseille Université Saint-Paul-lez-Durance, France
| | - Agathe Courteille
- Laboratoire d’Ecophysiologie Moléculaire des Plantes, Institut de Biologie Environnementale et Biotechnologie, Direction des Sciences du Vivant, Commissariat à l’Energie AtomiqueSaint-Paul-lez-Durance, France
- UMR 7265 Service de Biologie Végétale et de Microbiologie Environnementales, Centre National de la Recherche ScientifiqueSaint-Paul-lez-Durance, France
- Aix-Marseille Université Saint-Paul-lez-Durance, France
| | - Dominique Rumeau
- Laboratoire d’Ecophysiologie Moléculaire des Plantes, Institut de Biologie Environnementale et Biotechnologie, Direction des Sciences du Vivant, Commissariat à l’Energie AtomiqueSaint-Paul-lez-Durance, France
- UMR 7265 Service de Biologie Végétale et de Microbiologie Environnementales, Centre National de la Recherche ScientifiqueSaint-Paul-lez-Durance, France
- Aix-Marseille Université Saint-Paul-lez-Durance, France
| | - Emmanuelle Issakidis-Bourguet
- UMR 8618 Institut de Biologie des Plantes, Centre National de la Recherche Scientifique, Université Paris-SudOrsay, France
| | - Inmaculada Farran
- Instituto de Agrobiotecnología, Universidad Pública de Navarra-Consejo Superior de Investigaciones CientíficasPamplona, Spain
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