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Coutinho FS, Mesquita RO, Rodrigues JM, Zanotti A, Faustino VA, Barros E, Vital CE, de Almeida Oliveira MG, Meira RMSA, Williams TCR, Fontes EPB, Loureiro ME, de Oliveira Ramos HJ. Alterations in the root phenylpropanoid pathway and root-shoot vessel system as main determinants of the drought tolerance of a soybean genotype. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:559-577. [PMID: 37187776 PMCID: PMC10172417 DOI: 10.1007/s12298-023-01307-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023]
Abstract
Climate change increases precipitation variability, particularly in savanna environments. We have used integrative strategies to understand the molecular mechanisms of drought tolerance, which will be crucial for developing improved genotypes. The current study compares the molecular and physiological parameters between the drought-tolerant Embrapa 48 and the sensitive BR16 genotypes. We integrated the root-shoot system's transcriptome, proteome, and metabolome to understand drought tolerance. The results indicated that Embrapa 48 had a greater capacity for water absorption due to alterations in length and volume. Drought tolerance appears to be ABA-independent, and IAA levels in the leaves partially explain the higher root growth. Proteomic profiles revealed up-regulated proteins involved in glutamine biosynthesis and proteolysis, suggesting osmoprotection and explaining the larger root volume. Dysregulated proteins in the roots belong to the phenylpropanoid pathways. Additionally, PR-like proteins involved in the biosynthesis of phenolics may act to prevent oxidative stress and as a substrate for modifying cell walls. Thus, we concluded that alterations in the root-shoot conductive vessel system are critical in promoting drought tolerance. Moreover, photosynthetic parameters from reciprocal grafting experiments indicated that the root system is more essential than the shoots in the drought tolerance mechanism. Finally, we provided a comprehensive overview of the genetic, molecular, and physiological traits involved in drought tolerance mechanisms. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01307-7.
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Affiliation(s)
- Flaviane Silva Coutinho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | | | - Juliano Mendonça Rodrigues
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | - Analú Zanotti
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | - Verônica Aparecida Faustino
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | - Edvaldo Barros
- Núcleo de Análise de Biomoléculas (NuBioMol), Centro de Ciências Biológicas, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | - Camilo Elber Vital
- Núcleo de Análise de Biomoléculas (NuBioMol), Centro de Ciências Biológicas, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
| | | | | | | | | | | | - Humberto Josué de Oliveira Ramos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
- Núcleo de Análise de Biomoléculas (NuBioMol), Centro de Ciências Biológicas, Universidade Federal de Viçosa, Viçosa, Minas Gerais Brazil
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2
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Khanal DD, Tasharofi S, Azizi M, Khaledi MG. Improved Protein Coverage in Bottom-Up Proteomes Analysis Using Fluoroalcohol-Mediated Supramolecular Biphasic Systems With Mixed Amphiphiles for Sample Extraction, Fractionation, and Enrichment. Anal Chem 2021; 93:7430-7438. [PMID: 33970614 DOI: 10.1021/acs.analchem.1c00030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new class of supramolecular biphasic systems containing fluoroalcohol-induced coacervates (FAiC) provides concomitant fractionation of complex protein mixtures, high solubilizing power for extraction of various types of proteins, especially those with high hydrophobicity (such as membrane proteins), and enrichment of low-abundance proteins. Subsequently, the use of FAiC biphasic systems (BPS) in the bottom-up proteomics workflow resulted in significantly higher coverage for the whole proteome, various subproteomes, especially those embedded or associated with membranes, post-translationally modified proteins, and low-abundance proteins (LAPs) as compared to the conventional methodologies. In this work, we used a new type of FAiC-BPS composed of mixed amphiphiles, a zwitterionic surfactant 3-(N,N-dimethylmyristyl ammonia) propane sulfonate (DMMAPS), a quaternary ammonium salt (QUATS), and hexafluoroisopropanol (HFIP) as the coacervator for extraction, fractionation, and enrichment of yeast proteome in bottom-up proteomics. The coverage of the lower-abundance proteins (abundance below 2000 molecules/cell) improved by more than 100% using DMMAPS and DMMAPS + QUATS systems as compared to the conventional methods using urea or detergent solutions for protein solubilization. Additionally, these coacervate systems show increased coverage of integral membrane proteins and proteins with α-helices by up to 24 and 555%, respectively.
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Affiliation(s)
- Durga Devi Khanal
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Sajad Tasharofi
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Mohammadmehdi Azizi
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Morteza G Khaledi
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
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Araújo GDS, Lopes LDS, Paula-Marinho SDO, Mesquita RO, Nagano CS, Vasconcelos FR, de Carvalho HH, Moura ADAAN, Marques EC, Gomes-Filho E. H 2O 2 priming induces proteomic responses to defense against salt stress in maize. PLANT MOLECULAR BIOLOGY 2021; 106:33-48. [PMID: 33594577 DOI: 10.1007/s11103-021-01127-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
KEY MESSAGE H2O2 priming reprograms essential proteins' expression to help plants survive, promoting responsive and unresponsive proteins adjustment to salt stress. ABSTACRT Priming is a powerful strategy to enhance abiotic stress tolerance in plants. Despite this, there is scarce information about the mechanisms induced by H2O2 priming for salt stress tolerance, particularly on proteome modulation. Improving maize cultivation in areas subjected to salinity is imperative for the local economy and food security. Thereby, this study aimed to investigate physiological changes linked with post-translational protein events induced by foliar H2O2 priming of Zea mays plants under salt stress. As expected, salt treatment promoted a considerable accumulation of Na+ ions, a 12-fold increase. It drastically affected growth parameters and relative water content, as well as promoted adverse alteration in the proteome profile, when compared to the absence of salt conditions. Conversely, H2O2 priming was beneficial via specific proteome reprogramming, which promoted better response to salinity by 16% reduction in Na+ content and shoots growth improvement, increasing 61% in dry mass. The identified proteins were associated with photosynthesis and redox homeostasis, critical metabolic pathways for helping plants survive in saline stress by the protection of chloroplasts organization and carbon fixation, as well as state redox. This research provides new proteomic data to improve understanding and forward identifying biotechnological strategies to promote salt stress tolerance.
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Affiliation(s)
- Gyedre Dos Santos Araújo
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Lineker de Sousa Lopes
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | | | - Celso Shiniti Nagano
- Department of Fishing Engineering, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Fábio Roger Vasconcelos
- Federal Institute of Education, Science and Technology of Ceará (IFCE), Boa Viagem, CE, Brazil
| | | | | | - Elton Camelo Marques
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Enéas Gomes-Filho
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil.
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Oliveira FDBD, Miranda RDS, Araújo GDS, Coelho DG, Lobo MDP, Paula-Marinho SDO, Lopes LDS, Monteiro-Moreira ACO, Carvalho HHD, Gomes-Filho E. New insights into molecular targets of salt tolerance in sorghum leaves elicited by ammonium nutrition. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:723-734. [PMID: 32763797 DOI: 10.1016/j.plaphy.2020.06.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/09/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
This study investigated the proteome modulation and physiological responses of Sorghum bicolor plants grown in nutrient solutions containing nitrate (NO3-) or ammonium (NH4+) at 5.0 mM, and subjected to salinity with 75 mM NaCl for ten days. Salinity promoted significant reductions in leaf area, root and shoot dry mass of sorghum plants, regardless of nitrogen source; however, higher growth was observed in ammonium-grown plants. The better performance of ammonium-fed stressed plants was associated with low hydrogen peroxide accumulation, and improved CO2 assimilation and K+/Na+ homeostasis under salinity. Proteomic study revealed a nitrogen source-induced differential modulation in proteins related to photosynthesis/carbon metabolism, energy metabolism, response to stress and other cellular processes. Nitrate-fed plants induced thylakoidal electron transport chain proteins and structural and carbon assimilation enzymes, but these mechanisms seemed to be insufficient to mitigate salt damage in photosynthetic performance. In contrast, the greater tolerance to salinity of ammonium-grown plants may have arisen from: i.) de novo synthesis or upregulation of enzymes from photosynthetic/carbon metabolism, which resulted in better CO2 assimilation rates under NaCl-stress; ii.) activation of proteins involved in energy metabolism which made available energy for salt responses, most likely by proton pumps and Na+/H+ antiporters; and iii.) reprogramming of proteins involved in response to stress and other metabolic processes, constituting intricate pathways of salt responses. Overall, our findings not only provide new insights of molecular basis of salt tolerance in sorghum plants induced by ammonium nutrition, but also give new perspectives to develop biotechnological strategies to generate more salt-tolerant crops.
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Affiliation(s)
| | - Rafael de Souza Miranda
- Programa de Pós-graduação em Ciências Agrárias, Campus Professora Cinobelina Elvas, Universidade Federal do Piauí, Bom Jesus, Brazil.
| | - Gyedre Dos Santos Araújo
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Daniel Gomes Coelho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | | | - Lineker de Sousa Lopes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil
| | | | | | - Enéas Gomes-Filho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará and Instituto Nacional de Ciência e Tecnologia em Salinidade (INCTSal), Fortaleza, Brazil.
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Kim Y, Seo CW, Khan AL, Mun BG, Shahzad R, Ko JW, Yun BW, Park SK, Lee IJ. Exo-ethylene application mitigates waterlogging stress in soybean (Glycine max L.). BMC PLANT BIOLOGY 2018; 18:254. [PMID: 30348086 PMCID: PMC6198449 DOI: 10.1186/s12870-018-1457-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/01/2018] [Indexed: 05/20/2023]
Abstract
BACKGROUND Waterlogging (WL) is a key factor hindering soybean crop productivity worldwide. Plants utilize various hormones to avoid various stress conditions, including WL stress; however, the physiological mechanisms are still not fully understood. RESULTS To identify physiological mechanisms during WL stress, different phytohormones, such as ethephon (ETP; donor source of ethylene), abscisic acid, gibberellins, indole-3-acetic acid, kinetin, jasmonic acid, and salicylic acid were exogenously applied to soybean plants. Through this experiment, we confirmed the beneficial effects of ETP treatment. Thus, we selected ETP as a candidate hormone to mitigate WL. Further mechanistic investigation of the role of ETP in waterlogging tolerance was carried out. Results showed that ETP application mitigated WL stress, significantly improved the photosynthesis pigment, and increased the contents of endogenous GAs compared to those in untreated plants. The amino acid contents during WL stress were significantly activated by EPT treatments. The amino acid contents were significantly higher in the 100 μM ETP-treated soybean plants than in the control. ETP application induced adventitious root initiation, increased root surface area, and significantly increased the expressions of glutathione transferases and relative glutathione activity compared to those of non-ETP-treated plants. ETP-treated soybeans produced a higher up-regulation of protein content and glutathione S-transferase (GSTs) than did soybeans under the WL only treatment. CONCLUSIONS In conclusion, the current results suggest that ETP application enabled various biochemical and transcriptional modulations. In particular, ETP application could stimulate the higher expression of GST3 and GST8. Thus, increased GST3 and GST8 induced 1) increased GSH activity, 2) decreased reactive oxygen species (ROS), 3) mitigation of cell damage in photosynthetic apparatus, and 4) improved phenotype consecutively.
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Affiliation(s)
- Yoonha Kim
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Chang-Woo Seo
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Abdul Latif Khan
- UoN Chair of Oman’s Medicinal Plants & Marine Natural Products, University of Nizwa, 616 Nizwa, Oman
| | - Bong-Gyu Mun
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Raheem Shahzad
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Jeung-Woo Ko
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Byung-Wook Yun
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - Soon-Ki Park
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
| | - In-Jung Lee
- Division of Plant Biosciences, Kyungpook National University, Daegu, 702-701 South Korea
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Eddhif B, Lange J, Guignard N, Batonneau Y, Clarhaut J, Papot S, Geffroy-Rodier C, Poinot P. Study of a novel agent for TCA precipitated proteins washing - comprehensive insights into the role of ethanol/HCl on molten globule state by multi-spectroscopic analyses. J Proteomics 2018; 173:77-88. [DOI: 10.1016/j.jprot.2017.11.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/10/2017] [Accepted: 11/21/2017] [Indexed: 12/14/2022]
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7
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Vital CE, Giordano A, de Almeida Soares E, Rhys Williams TC, Mesquita RO, Vidigal PMP, de Santana Lopes A, Pacheco TG, Rogalski M, de Oliveira Ramos HJ, Loureiro ME. An integrative overview of the molecular and physiological responses of sugarcane under drought conditions. PLANT MOLECULAR BIOLOGY 2017; 94:577-594. [PMID: 28409321 DOI: 10.1007/s11103-017-0611-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 03/26/2017] [Indexed: 06/07/2023]
Abstract
Drought is the main abiotic stress constraining sugarcane production. However, our limited understanding of the molecular mechanisms involved in the drought stress responses of sugarcane impairs the development of new technologies to increase sugarcane drought tolerance. Here, an integrated approach was performed to reveal the molecular and physiological changes in two closely related sugarcane cultivars, including the most extensively planted cultivar in Brazil (cv. RB867515), in response to moderate (-0.5 MPa) and severe (-1 MPa) drought stress at the transcriptional, translational, and posttranslational levels. The results show common and cultivar exclusive changes in specific genes related to photosynthesis, carbohydrate, amino acid, and phytohormone metabolism. The novel phosphoproteomics and redox proteomic analysis revealed the importance of posttranslational regulation mechanisms during sugarcane drought stress. The shift to soluble sugar, secondary metabolite production, and activation of ROS eliminating processes in response to drought tolerance were mechanisms exclusive to cv. RB867515, helping to explain the better performance and higher production of this cultivar under these stress conditions.
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Affiliation(s)
- Camilo Elber Vital
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
| | - Andrea Giordano
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Thomas Christopher Rhys Williams
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
- Departamento de Botânica, Universidade de Brasília, Brasília, Distrito Federal, Brazil
| | - Rosilene Oliveira Mesquita
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
- Departamento de Fitotecnia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Pedro Marcus Pereira Vidigal
- Núcleo de Análise de Biomoléculas (NuBioMol), Centro de Ciências Biológicas, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Amanda de Santana Lopes
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Túlio Gomes Pacheco
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Marcelo Rogalski
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | | | - Marcelo Ehlers Loureiro
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
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Li MW, Xin D, Gao Y, Li KP, Fan K, Muñoz NB, Yung WS, Lam HM. Using genomic information to improve soybean adaptability to climate change. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:1823-1834. [PMID: 27660480 DOI: 10.1093/jxb/erw348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Climate change has brought severe challenges to agriculture. It is anticipated that there will be a drop in crop yield - including that of soybean - due to climatic stress factors that include drastic fluctuations in temperature, drought, flooding and high salinity. Genomic information on soybean has been accumulating rapidly since initial publication of its reference genome, providing a valuable tool for the improvement of cultivated soybean. Not only are many molecular markers that are associated with important quantitative trait loci now identified, but we also have a more detailed picture of the genomic variations among soybean germplasms, enabling us to utilize these as tools to assist crop breeding. In this review, we will summarize and discuss the currently available soybean genomic approaches, including whole-genome sequencing, sequencing-based genotyping, functional genomics, proteomics, and epigenomics. The information uncovered through these techniques will help further pinpoint important gene candidates and genomic loci associated with adaptive traits, as well as achieving a better understanding of how soybeans cope with the changing climate.
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Affiliation(s)
- Man-Wah Li
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Dawei Xin
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
- Key Laboratory of Soybean Biology of Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, College of Science, Northeast Agricultural University, Harbin, Heilongjiang Province, People's Republic of China
| | - Yishu Gao
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Kwan-Pok Li
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Kejing Fan
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Nacira Belen Muñoz
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
- Instituto de Fisiología y Recursos Genéticos Vegetales, Centro de Investigaciones Agropecuarias-INTA, Córdoba, Argentina
- Cátedra de Fisiología Vegetal, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Wai-Shing Yung
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Hon-Ming Lam
- Centre for Soybean Research, Partner State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
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9
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Basak I, Pal R, Patil KS, Dunne A, Ho HP, Lee S, Peiris D, Maple-Grødem J, Odell M, Chang EJ, Larsen JP, Møller SG. Arabidopsis AtPARK13, which confers thermotolerance, targets misfolded proteins. J Biol Chem 2014; 289:14458-69. [PMID: 24719325 DOI: 10.1074/jbc.m114.548156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mutations in HTRA2/Omi/PARK13 have been implicated in Parkinson disease (PD). PARK13 is a neuroprotective serine protease; however, little is known about how PARK13 confers stress protection and which protein targets are directly affected by PARK13. We have reported that Arabidopsis thaliana represents a complementary PD model, and here we demonstrate that AtPARK13, similar to human PARK13 (hPARK13), is a mitochondrial protease. We show that the expression/accumulation of AtPARK13 transcripts are induced by heat stress but not by other stress conditions, including oxidative stress and metals. Our data show that elevated levels of AtPARK13 confer thermotolerance in A. thaliana. Increased temperatures accelerate protein unfolding, and we demonstrate that although AtPARK13 can act on native protein substrates, unfolded proteins represent better AtPARK13 substrates. The results further show that AtPARK13 and hPARK13 can degrade the PD proteins α-synuclein (SNCA) and DJ-1/PARK7 directly, without autophagy involvement, and that misfolded SNCA and DJ-1 represent better substrates than their native counterparts. Comparative proteomic profiling revealed AtPARK13-mediated proteome changes, and we identified four proteins that show altered abundance in response to AtPARK13 overexpression and elevated temperatures. Our study not only suggests that AtPARK13 confers thermotolerance by degrading misfolded protein targets, but it also provides new insight into possible roles of this protease in neurodegeneration.
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Affiliation(s)
- Indranil Basak
- From the Department of Biological Sciences, St. John's University, New York, New York 11439
| | - Ramavati Pal
- From the Department of Biological Sciences, St. John's University, New York, New York 11439
| | - Ketan S Patil
- From the Department of Biological Sciences, St. John's University, New York, New York 11439
| | - Aisling Dunne
- From the Department of Biological Sciences, St. John's University, New York, New York 11439
| | - Hsin-Pin Ho
- the Department of Chemistry, York College of the City University of New York, New York, New York 11451
| | - Sungsu Lee
- From the Department of Biological Sciences, St. John's University, New York, New York 11439
| | - Diluka Peiris
- the Department of Molecular and Applied Biosciences, University of Westminster, London W1W 6UW, United Kingdom, and
| | - Jodi Maple-Grødem
- the Norwegian Center for Movement Disorders, Stavanger University Hospital, 4068 Stavanger, Norway
| | - Mark Odell
- the Department of Molecular and Applied Biosciences, University of Westminster, London W1W 6UW, United Kingdom, and
| | - Emmanuel J Chang
- the Department of Chemistry, York College of the City University of New York, New York, New York 11451
| | - Jan Petter Larsen
- the Norwegian Center for Movement Disorders, Stavanger University Hospital, 4068 Stavanger, Norway
| | - Simon G Møller
- From the Department of Biological Sciences, St. John's University, New York, New York 11439, the Norwegian Center for Movement Disorders, Stavanger University Hospital, 4068 Stavanger, Norway
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10
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Natarajan S, Luthria D, Bae H, Lakshman D, Mitra A. Transgenic soybeans and soybean protein analysis: an overview. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11736-43. [PMID: 24099420 DOI: 10.1021/jf402148e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To meet the increasing global demand for soybeans for food and feed consumption, new high-yield varieties with improved quality traits are needed. To ensure the safety of the crop, it is important to determine the variation in seed proteins along with unintended changes that may occur in the crop as a result various stress stimuli, breeding, and genetic modification. Understanding the variation of seed proteins in the wild and cultivated soybean cultivars is useful for determining unintended protein expression in new varieties of soybeans. Proteomic technology is useful to analyze protein variation due to various stimuli. This short review discusses transgenic soybeans, different soybean proteins, and the approaches used for protein analysis. The characterization of soybean protein will be useful for researchers, nutrition professionals, and regulatory agencies dealing with soy-derived food products.
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Affiliation(s)
- Savithiry Natarajan
- Soybean Genomics and Improvement Laboratory, Agricultural Research Service, U.S. Department of Agriculture , Beltsville, Maryland 20705, United States
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