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Castro B, Baik S, Tran M, Zhu J, Li T, Tang A, Aoun N, Blundell AC, Gomez M, Zhang E, Cho MJ, Lowe-Power T, Siddique S, Staskawicz B, Coaker G. Gene editing of the E3 ligase PIRE1 fine-tunes ROS production for enhanced bacterial disease resistance in tomato. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.31.606097. [PMID: 39131268 PMCID: PMC11312566 DOI: 10.1101/2024.07.31.606097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Reactive oxygen species (ROS) accumulation is required for effective plant defense. Accumulation of the Arabidopsis NADPH oxidase RBOHD is regulated by phosphorylation of a conserved C-terminal residue (T912) leading to ubiquitination by the RING E3 ligase PIRE. Arabidopsis PIRE knockouts exhibit enhanced ROS production and resistance to the foliar pathogen Pseudomonas syringae. Here, we identified 170 PIRE homologs, which emerged in Tracheophytes and expanded in Angiosperms. We investigated the role of Solanum lycopersicum (tomato) PIRE homologs in regulating ROS production, RBOH stability, and disease resistance. Mutational analyses of residues corresponding to T912 in the tomato RBOHD ortholog, SlRBOHB, affected protein accumulation and ROS production in a PIRE-dependent manner. Using CRISPR-cas9, we generated mutants in two S. lycopersicum PIRE homologs (SlPIRE). SlPIRE1 edited lines (Slpire1) in the tomato cultivar M82 displayed enhanced ROS production upon treatment with flg22, an immunogenic epitope of flagellin. Furthermore, Slpire1 exhibited decreased disease symptoms and bacterial accumulation when inoculated with foliar bacterial pathogens Pseudomonas syringae and Xanthomonas campestris. However, Slpire1 exhibited similar levels of colonization as wild type upon inoculation with diverse soilborne pathogens. These results indicate that phosphorylation and ubiquitination crosstalk regulate RBOHs in multiple plant species, and PIRE is a promising target for foliar disease control. This study also highlights the pathogen-specific role of PIRE, indicating its potential for targeted manipulation to enhance foliar disease resistance without affecting root-associated interactions, positioning PIRE as a promising target for improving overall plant health.
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Affiliation(s)
- Bardo Castro
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, USA
| | - Suji Baik
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Megann Tran
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Jie Zhu
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Tianrun Li
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Andrea Tang
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Nathalie Aoun
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Alison C Blundell
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Michael Gomez
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA
| | - Elaine Zhang
- Innovative Genomics Institute, University of California, Berkeley, CA, USA
| | - Myeong-Je Cho
- Innovative Genomics Institute, University of California, Berkeley, CA, USA
| | - Tiffany Lowe-Power
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
| | - Shahid Siddique
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, USA
| | - Brian Staskawicz
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA
- Innovative Genomics Institute, University of California, Berkeley, CA, USA
| | - Gitta Coaker
- Department of Plant Pathology, University of California, Davis, Davis, CA, USA
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Rahaman H, Herojit K, Singh LR, Haobam R, Fisher AB. Structural and Functional Diversity of the Peroxiredoxin 6 Enzyme Family. Antioxid Redox Signal 2024; 40:759-775. [PMID: 37463006 DOI: 10.1089/ars.2023.0287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Significance: Peroxiredoxins (Prdxs) with a single peroxidative cysteine (CP) in a conserved motif PXXX(T/S)XXCP within its thioredoxin fold, have been classified as the peroxiredoxin 6 (Prdx6 ) family. All Prdxs can reduce H2O2 and short chain hydroperoxides while Prdx6 in addition, can reduce phospholipid hydroperoxides (PLOOH) due to its ability to interact with peroxidized phospholipid substrate. The single CP of Prdx6 uses various external electron donors including glutathione thioredoxin, and ascorbic acid for resolution of its peroxidized state and, therefore, its peroxidase activity. Prdx6 proteins also exhibit Ca2+-independent phospholipase A2 (PLA2), lysophosphatidylcholine acyltransferase (LPCAT), and chaperone activities that depend on cellular localization and the oxidation and oligomerisation states of the protein. Thus, Prdx6 is a "moonlighting" enzyme. Recent Advance: Physiologically, Prdx6s have been reported to play an important role in protection against oxidative stress, repair of peroxidized cell membranes, mammalian lung surfactant turnover, activation of some NADPH oxidases, the regulation of seed germination in plants, as an indicator of cellular levels of reactive O2 species through Nrf-Klf9 activation, and possibly in male fertility, regulation of cell death through ferroptosis, cancer metastasis, and oxidative stress-related signalling pathways. Critical Issues: This review outlines Prdx6 enzyme unique structural features and explores its wide range of physiological functions. Yet, existing structural data falls short of fully revealing all of human Prdx6 multifunctional roles. Further endeavour is required to bridge this gap in its understanding. Although there are wide variations in both the structure and function of Prdx6 family members in various organisms, all Prdx6 proteins show the unique a long C-terminal extension that is also seen in Prdx1, but not in other Prdxs. Future Directions: As research data continues to accumulate, the potential for detailed insights into the role of C-terminal of Prdx6 in its oligomerisation and activities. There is a need for thorough exploration of structural characteristics of the various biological functions. Additionally, uncovering the interacting partners of Prdx6 and understanding its involvement in signalling pathways will significantly contribute to a more profound comprehension of its role.
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Affiliation(s)
- Hamidur Rahaman
- Department of Biotechnology, Manipur University, Imphal, India
| | - Khundrakpam Herojit
- Department of Biotechnology, Manipur University, Imphal, India
- Department of Biotechnology, Mangolnganbi College, Ningthoukhong, India
| | | | - Reena Haobam
- Department of Biotechnology, Manipur University, Imphal, India
| | - Aron B Fisher
- Institute for Environmental Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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Yao X, Mu Y, Zhang L, Chen L, Zou S, Chen X, Lu K, Dong H. AtPIP1;4 and AtPIP2;4 Cooperatively Mediate H 2O 2 Transport to Regulate Plant Growth and Disease Resistance. PLANTS (BASEL, SWITZERLAND) 2024; 13:1018. [PMID: 38611547 PMCID: PMC11013698 DOI: 10.3390/plants13071018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/22/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
The rapid production of hydrogen peroxide (H2O2) is a hallmark of plants' successful recognition of pathogen infection and plays a crucial role in innate immune signaling. Aquaporins (AQPs) are membrane channels that facilitate the transport of small molecular compounds across cell membranes. In plants, AQPs from the plasma membrane intrinsic protein (PIP) family are utilized for the transport of H2O2, thereby regulating various biological processes. Plants contain two PIP families, PIP1s and PIP2s. However, the specific functions and relationships between these subfamilies in plant growth and immunity remain largely unknown. In this study, we explore the synergistic role of AtPIP1;4 and AtPIP2;4 in regulating plant growth and disease resistance in Arabidopsis. We found that in plant cells treated with H2O2, AtPIP1;4 and AtPIP2;4 act as facilitators of H2O2 across membranes and the translocation of externally applied H2O2 from the apoplast to the cytoplasm. Moreover, AtPIP1;4 and AtPIP2;4 collaborate to transport bacterial pathogens and flg22-induced apoplastic H2O2 into the cytoplasm, leading to increased callose deposition and enhanced defense gene expression to strengthen immunity. These findings suggest that AtPIP1;4 and AtPIP2;4 cooperatively mediate H2O2 transport to regulate plant growth and immunity.
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Affiliation(s)
- Xiaohui Yao
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Yanjie Mu
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
- Qingdao King Agroot Crop Science, Qingdao 266071, China
| | - Liyuan Zhang
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Lei Chen
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Shenshen Zou
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Xiaochen Chen
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Kai Lu
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
| | - Hansong Dong
- National Key Laboratory of Wheat Improvement, College of Plant Protection, Shandong Agricultural University, Taian 271018, China
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Zhang H, Yang Z, Cheng G, Luo T, Zeng K, Jiao W, Zhou Y, Huang G, Zhang J, Xu J. Sugarcane mosaic virus employs 6K2 protein to impair ScPIP2;4 transport of H2O2 to facilitate virus infection. PLANT PHYSIOLOGY 2024; 194:715-731. [PMID: 37930811 DOI: 10.1093/plphys/kiad567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/22/2023] [Accepted: 09/27/2023] [Indexed: 11/08/2023]
Abstract
Sugarcane mosaic virus (SCMV), one of the main pathogens causing sugarcane mosaic disease, is widespread in sugarcane (Saccharum spp. hybrid) planting areas and causes heavy yield losses. RESPIRATORY BURST OXIDASE HOMOLOG (RBOH) NADPH oxidases and plasma membrane intrinsic proteins (PIPs) have been associated with the response to SCMV infection. However, the underlying mechanism is barely known. In the present study, we demonstrated that SCMV infection upregulates the expression of ScRBOHs and the accumulation of hydrogen peroxide (H2O2), which inhibits SCMV replication. All eight sugarcane PIPs (ScPIPs) interacted with SCMV-encoded protein 6K2, whereby two PIP2s (ScPIP2;1 and ScPIP2;4) were verified as capable of H2O2 transport. Furthermore, we revealed that SCMV-6K2 interacts with ScPIP2;4 via transmembrane domain 5 to interfere with the oligomerization of ScPIP2;4, subsequently impairing ScPIP2;4 transport of H2O2. This study highlights a mechanism adopted by SCMV to employ 6K2 to counteract the host resistance mediated by H2O2 to facilitate virus infection and provides potential molecular targets for engineering sugarcane resistance against SCMV.
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Affiliation(s)
- Hai Zhang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Zongtao Yang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Guangyuan Cheng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Tingxu Luo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Kang Zeng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Wendi Jiao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Yingshuan Zhou
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Guoqiang Huang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
| | - Jisen Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agro-Biological Resources & Guangxi Key Lab for Sugarcane Biology, Guangxi University, Nanning 530005, P. R. China
| | - Jingsheng Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China
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Wang Q, Shen T, Ni L, Chen C, Jiang J, Cui Z, Wang S, Xu F, Yan R, Jiang M. Phosphorylation of OsRbohB by the protein kinase OsDMI3 promotes H 2O 2 production to potentiate ABA responses in rice. MOLECULAR PLANT 2023; 16:882-902. [PMID: 37029489 DOI: 10.1016/j.molp.2023.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 02/02/2023] [Accepted: 04/02/2023] [Indexed: 05/04/2023]
Abstract
In rice, the Ca2+/calmodulin-dependent protein kinase OsDMI3 is an important positive regulator of abscisic acid (ABA) signaling. In ABA signaling, H2O2 is required for ABA-induced activation of OsDMI3, which in turn increase H2O2 production. However, how OsDMI3 regulates H2O2 production in ABA signaling remains unknown. Here we show that OsRbohB is the main NADPH oxidase involved in ABA-induced H2O2 production and ABA-mediated physiological responses. OsDMI3 directly interacts with and phosphorylates OsRbohB at Ser-191, which is OsDMI3-mediated site-specific phosphorylation in ABA signaling. Further analyses revealed that OsDMI3-mediated OsRbohB Ser-191 phosphorylation positively regulates the activity of NADPH oxidase and the production of H2O2 in ABA signaling, thereby enhancing the sensitivity of seed germination and root growth to ABA and plant tolerance to water stress and oxidative stress. Moreover, we discovered that the OsDMI3-mediated OsRbohB phosphorylation and H2O2 production is dependent on the sucrose non-fermenting 1-related protein kinases SAPK8/9/10, which phosphorylate OsRbohB at Ser-140 in ABA signaling. Taken together, these results not only reveal an important regulatory mechanism that directly activates Rboh for ABA-induced H2O2 production but also uncover the importance of this regulatory mechanism in ABA signaling.
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Affiliation(s)
- Qingwen Wang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Tao Shen
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Lan Ni
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Chen
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jingjing Jiang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenzhen Cui
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shuang Wang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Fengjuan Xu
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Runjiao Yan
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingyi Jiang
- College of Life Sciences, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Crop Physiology Ecology and Production Management, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
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6
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Hong X, Qi F, Wang R, Jia Z, Lin F, Yuan M, Xin XF, Liang Y. Ascorbate peroxidase 1 allows monitoring of cytosolic accumulation of effector-triggered reactive oxygen species using a luminol-based assay. PLANT PHYSIOLOGY 2023; 191:1416-1434. [PMID: 36461917 PMCID: PMC9922408 DOI: 10.1093/plphys/kiac551] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 11/04/2022] [Accepted: 12/02/2022] [Indexed: 05/06/2023]
Abstract
Biphasic production of reactive oxygen species (ROS) has been observed in plants treated with avirulent bacterial strains. The first transient peak corresponds to pattern-triggered immunity (PTI)-ROS, whereas the second long-lasting peak corresponds to effector-triggered immunity (ETI)-ROS. PTI-ROS are produced in the apoplast by plasma membrane-localized NADPH oxidases, and the recognition of an avirulent effector increases the PTI-ROS regulatory module, leading to ETI-ROS accumulation in the apoplast. However, how apoplastic ETI-ROS signaling is relayed to the cytosol is still unknown. Here, we found that in the absence of cytosolic ascorbate peroxidase 1 (APX1), the second phase of ETI-ROS accumulation was undetectable in Arabidopsis (Arabidopsis thaliana) using luminol-based assays. In addition to being a scavenger of cytosolic H2O2, we discovered that APX1 served as a catalyst in this chemiluminescence ROS assay by employing luminol as an electron donor. A horseradish peroxidase (HRP)-mimicking APX1 mutation (APX1W41F) further enhanced its catalytic activity toward luminol, whereas an HRP-dead APX1 mutation (APX1R38H) reduced its luminol oxidation activity. The cytosolic localization of APX1 implies that ETI-ROS might accumulate in the cytosol. When ROS were detected using a fluorescent dye, green fluorescence was observed in the cytosol 6 h after infiltration with an avirulent bacterial strain. Collectively, these results indicate that ETI-ROS eventually accumulate in the cytosol, and cytosolic APX1 catalyzes luminol oxidation and allows monitoring of the kinetics of ETI-ROS in the cytosol. Our study provides important insights into the spatial dynamics of ROS accumulation in plant immunity.
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Affiliation(s)
- Xiufang Hong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Fan Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ran Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Zhiyi Jia
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Fucheng Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Minhang Yuan
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiu-Fang Xin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yan Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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Lu K, Chen X, Yao X, An Y, Wang X, Qin L, Li X, Wang Z, Liu S, Sun Z, Zhang L, Chen L, Li B, Liu B, Wang W, Ding X, Yang Y, Zhang M, Zou S, Dong H. Phosphorylation of a wheat aquaporin at two sites enhances both plant growth and defense. MOLECULAR PLANT 2022; 15:1772-1789. [PMID: 36207815 DOI: 10.1016/j.molp.2022.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Eukaryotic aquaporins share the characteristic of functional multiplicity in transporting distinct substrates and regulating various processes, but the underlying molecular basis for this is largely unknown. Here, we report that the wheat (Triticum aestivum) aquaporin TaPIP2;10 undergoes phosphorylation to promote photosynthesis and productivity and to confer innate immunity against pathogens and a generalist aphid pest. In response to elevated atmospheric CO2 concentrations, TaPIP2;10 is phosphorylated at the serine residue S280 and thereafter transports CO2 into wheat cells, resulting in enhanced photosynthesis and increased grain yield. In response to apoplastic H2O2 induced by pathogen or insect attacks, TaPIP2;10 is phosphorylated at S121 and this phosphorylated form transports H2O2 into the cytoplasm, where H2O2 intensifies host defenses, restricting further attacks. Wheat resistance and grain yield could be simultaneously increased by TaPIP2;10 overexpression or by expressing a TaPIP2;10 phosphomimic with aspartic acid substitutions at S121 and S280, thereby improving both crop productivity and immunity.
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Affiliation(s)
- Kai Lu
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaochen Chen
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaohui Yao
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Yuyan An
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China
| | - Xuan Wang
- Institute of Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Lina Qin
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xiaoxu Li
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Zuodong Wang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Shuo Liu
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Zhimao Sun
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China
| | - Liyuan Zhang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Lei Chen
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Baoyan Li
- Institute of Plant Protection & Resource and Environment, Yantai Academy of Agricultural Sciences, Yantai 265599, China
| | - Baoyou Liu
- Institute of Plant Protection & Resource and Environment, Yantai Academy of Agricultural Sciences, Yantai 265599, China
| | - Weiyang Wang
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Xinhua Ding
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China
| | - Yonghua Yang
- Institute of Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Meixiang Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710019, China.
| | - Shenshen Zou
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China.
| | - Hansong Dong
- College of Plant Protection, State Key Laboratory of Crop Biology, Qilu College, Shandong Agricultural University, Taian 271018, China.
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8
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Martin RE, Postiglione AE, Muday GK. Reactive oxygen species function as signaling molecules in controlling plant development and hormonal responses. CURRENT OPINION IN PLANT BIOLOGY 2022; 69:102293. [PMID: 36099672 PMCID: PMC10475289 DOI: 10.1016/j.pbi.2022.102293] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 07/05/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Reactive oxygen species (ROS) serve as second messengers in plant signaling pathways to remodel plant growth and development. New insights into how enzymatic ROS-producing machinery is regulated by hormones or localized during development have provided a framework for understanding the mechanisms that control ROS accumulation patterns. Signaling-mediated increases in ROS can then modulate the activity of proteins through reversible oxidative modification of specific cysteine residues. Plants also control the synthesis of antioxidants, including plant-specialized metabolites, to further define when, where, and how much ROS accumulate. The availability of sophisticated imaging capabilities, combined with a growing tool kit of ROS detection technologies, particularly genetically encoded biosensors, sets the stage for improved understanding of ROS as signaling molecules.
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Affiliation(s)
- R Emily Martin
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA; Department of Biology and the Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, 27109, USA
| | - Anthony E Postiglione
- Department of Biology and the Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, 27109, USA
| | - Gloria K Muday
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, 27101, USA; Department of Biology and the Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, 27109, USA.
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9
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Jurdak R, Rodrigues GDAG, Chaumont N, Schivre G, Bourbousse C, Barneche F, Bou Dagher Kharrat M, Bailly C. Intracellular reactive oxygen species trafficking participates in seed dormancy alleviation in Arabidopsis seeds. THE NEW PHYTOLOGIST 2022; 234:850-866. [PMID: 35175638 DOI: 10.1111/nph.18038] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Reactive oxygen species (ROS) release seed dormancy through an unknown mechanism. We used different seed dormancy-breaking treatments to decipher the dynamics and localization of ROS production during seed germination. We studied the involvement of ROS in the breaking of Arabidopsis seed dormancy by cold stratification, gibberellic acid (GA3 ) and light. We characterized the effects of these treatments on abscisic acid and gibberellins biosynthesis and signalling pathways. ROS, mitochondrial redox status and peroxisomes were visualized and/or quantified during seed imbibition. Finally, we performed a cytogenetic characterization of the nuclei from the embryonic axes during seed germination. We show that mitochondria participate in the early ROS production during seed imbibition and that a possible involvement of peroxisomes in later stages should still be analysed. At the time of radicle protrusion, ROS accumulated within the nucleus, which correlated with nuclear expansion and chromatin decompaction. Taken together, our results provide evidence of the role of ROS trafficking between organelles and of the nuclear redox status in the regulation of seed germination by dormancy.
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Affiliation(s)
- Rana Jurdak
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
- Biodiversity and Functional Genomics Laboratory, Université Saint-Joseph de Beyrouth, Beyrouth, 1107 2050, Lebanon
| | - Guilherme de Almeida Garcia Rodrigues
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
- Plant Physiology Lab, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Nicole Chaumont
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
| | - Geoffrey Schivre
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
- Université Paris-Saclay, Orsay, F-91405, France
| | - Clara Bourbousse
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
| | - Fredy Barneche
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
| | - Magda Bou Dagher Kharrat
- Biodiversity and Functional Genomics Laboratory, Université Saint-Joseph de Beyrouth, Beyrouth, 1107 2050, Lebanon
| | - Christophe Bailly
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
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10
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Qureshi MK, Gawroński P, Munir S, Jindal S, Kerchev P. Hydrogen peroxide-induced stress acclimation in plants. Cell Mol Life Sci 2022; 79:129. [PMID: 35141765 PMCID: PMC11073338 DOI: 10.1007/s00018-022-04156-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023]
Abstract
Among all reactive oxygen species (ROS), hydrogen peroxide (H2O2) takes a central role in regulating plant development and responses to the environment. The diverse role of H2O2 is achieved through its compartmentalized synthesis, temporal control exerted by the antioxidant machinery, and ability to oxidize specific residues of target proteins. Here, we examine the role of H2O2 in stress acclimation beyond the well-studied transcriptional reprogramming, modulation of plant hormonal networks and long-distance signalling waves by highlighting its global impact on the transcriptional regulation and translational machinery.
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Affiliation(s)
- Muhammad Kamran Qureshi
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Piotr Gawroński
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw, University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Sana Munir
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Sunita Jindal
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic
| | - Pavel Kerchev
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic.
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11
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Vafina G. Investigation of the antioxidant activity of the peroxidase system of cell nuclei during germination of wheat embryos with different types of resistance to temperature stress. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224302016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The yield of agricultural crops directly depends on their ability to adapt to a constantly changing environment, the unfavorable climatic conditions of which cause oxidative stress, accompanied by the generation of reactive oxygen species in plant cells, which can cause damage to heteropolymer cell structures, thereby leading to suppression of plant growth and a decrease in productivity grains. It has been shown that the profile of the antioxidant activity of the peroxidase system in histone and non-histone blocks of structures (nucleoplasm, chromatin) of cell nuclei during germination is more pronounced in the cold-resistant variety Mironovskaya 808 (winter) compared to Mironovskaya yarovaya (spring), which correlates with the intensity of growth processes and can be associated with participation in the realization of proliferation and differentiation programs. A direct relationship between the scavenging of ROS and plant resistance to temperature stress, which is often associated with the increased activity of antioxidant enzymes that impart stress resistance to both high and low temperature stress, apparently also exists at the level of the plant cell nucleus.
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12
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Vafina G. Investigation of the antioxidant activity of the peroxidase system of cell nuclei during germination of wheat embryos with different types of resistance to temperature stress. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224301011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The yield of agricultural crops directly depends on their ability to adapt to a constantly changing environment, the unfavorable climatic conditions of which cause oxidative stress, accompanied by the generation of reactive oxygen species in plant cells, which can cause damage to heteropolymer cell structures, thereby leading to suppression of plant growth and a decrease in productivity grains. It has been shown that the profile of the antioxidant activity of the peroxidase system in histone and non-histone blocks of structures (nucleoplasm, chromatin) of cell nuclei during germination is more pronounced in the cold-resistant variety Mironovskaya 808 (winter) compared to Mironovskaya yarovaya (spring), which correlates with the intensity of growth processes and can be associated with participation in the realization of proliferation and differentiation programs. A direct relationship between the scavenging of ROS and plant resistance to temperature stress, which is often associated with the increased activity of antioxidant enzymes that impart stress resistance to both high and low temperature stress, apparently also exists at the level of the plant cell nucleus.
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13
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Wang X, Lu K, Yao X, Zhang L, Wang F, Wu D, Peng J, Chen X, Du J, Wei J, Ma J, Chen L, Zou S, Zhang C, Zhang M, Dong H. The Aquaporin TaPIP2;10 Confers Resistance to Two Fungal Diseases in Wheat. PHYTOPATHOLOGY 2021; 111:2317-2331. [PMID: 34058861 DOI: 10.1094/phyto-02-21-0048-r] [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] [Indexed: 06/12/2023]
Abstract
Plants employ aquaporins (AQPs) of the plasma membrane intrinsic protein (PIP) family to import environmental substrates, thereby affecting various processes, such as the cellular responses regulated by the signaling molecule hydrogen peroxide (H2O2). Common wheat (Triticum aestivum) contains 24 candidate members of the PIP family, designated as TaPIP1;1 to TaPIP1;12 and TaPIP2;1 to TaPIP2;12. None of these TaPIP candidates have been characterized for substrate selectivity or defense responses in their source plant. Here, we report that T. aestivum AQP TaPIP2;10 facilitates the cellular uptake of H2O2 to confer resistance against powdery mildew and Fusarium head blight, two devastating fungal diseases in wheat throughout the world. In wheat, the apoplastic H2O2 signal is induced by fungal attack, while TaPIP2;10 is stimulated to translocate this H2O2 into the cytoplasm, where it activates defense responses to restrict further attack. TaPIP2;10-mediated transport of H2O2 is essential for pathogen-associated molecular pattern-triggered plant immunity (PTI). Typical PTI responses are induced by the fungal infection and intensified by overexpression of the TaPIP2;10 gene. TaPIP2;10 overexpression causes a 70% enhancement in wheat resistance to powdery mildew and an 86% enhancement in resistance to Fusarium head blight. By reducing the disease severities, TaPIP2;10 overexpression brings about >37% increase in wheat grain yield. These results verify the feasibility of using an immunity-relevant AQP to concomitantly improve crop productivity and immunity.
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Affiliation(s)
- Xiaobing Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Kai Lu
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Xiaohui Yao
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Liyuan Zhang
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Fubin Wang
- Institute of Environmental Sciences & Resources and Plant Protection, Jining Academy of Agricultural Sciences, Jining, Shandon Province 272000, China
| | - Degong Wu
- College of Agriculture, Anhui Science and Technology University, Fengyang, Anhui Province 233100, China
| | - Jinfeng Peng
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Xiaochen Chen
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Junli Du
- College of Agriculture, Anhui Science and Technology University, Fengyang, Anhui Province 233100, China
| | - Jiankun Wei
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Jingyu Ma
- Institute of Environmental Sciences & Resources and Plant Protection, Jining Academy of Agricultural Sciences, Jining, Shandon Province 272000, China
| | - Lei Chen
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Shenshen Zou
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong Province 271018, China
| | - Chunling Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Meixiang Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
| | - Hansong Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu Province 210095, China
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province 271018, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong Province 271018, China
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14
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Surfactin Stimulated by Pectin Molecular Patterns and Root Exudates Acts as a Key Driver of the Bacillus-Plant Mutualistic Interaction. mBio 2021; 12:e0177421. [PMID: 34724831 PMCID: PMC8561381 DOI: 10.1128/mbio.01774-21] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Bacillus velezensis is considered as a model species belonging to the so-called Bacillus subtilis complex that evolved typically to dwell in the soil rhizosphere niche and establish an intimate association with plant roots. This bacterium provides protection to its natural host against diseases and represents one of the most promising biocontrol agents. However, the molecular basis of the cross talk that this bacterium establishes with its natural host has been poorly investigated. We show here that these plant-associated bacteria have evolved a polymer-sensing system to perceive their host and that, in response, they increase the production of the surfactin-type lipopeptide. Furthermore, we demonstrate that surfactin synthesis is favored upon growth on root exudates and that this lipopeptide is a key component used by the bacterium to optimize biofilm formation, motility, and early root colonization. In this specific nutritional context, the bacterium also modulates qualitatively the pattern of surfactin homologues coproduced in planta and forms mainly variants that are the most active at triggering plant immunity. Surfactin represents a shared good as it reinforces the defensive capacity of the host. IMPORTANCE Within the plant-associated microbiome, some bacterial species are of particular interest due to the disease protective effect they provide via direct pathogen suppression and/or stimulation of host immunity. While these biocontrol mechanisms are quite well characterized, we still poorly understand the molecular basis of the cross talk these beneficial bacteria initiate with their host. Here, we show that the model species Bacillus velezensis stimulates the production of the surfactin lipopeptide upon sensing pectin as a cell surface molecular pattern and upon feeding on root exudates. Surfactin favors bacterial rhizosphere fitness on one hand and primes the plant immune system on the other hand. Our data therefore illustrate how both partners use this multifunctional compound as a unique shared good to sustain a mutualistic interaction.
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15
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Phua SY, De Smet B, Remacle C, Chan KX, Van Breusegem F. Reactive oxygen species and organellar signaling. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5807-5824. [PMID: 34009340 DOI: 10.1093/jxb/erab218] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/14/2021] [Indexed: 05/07/2023]
Abstract
The evolution of photosynthesis and its associated metabolic pathways has been crucial to the successful establishment of plants, but has also challenged plant cells in the form of production of reactive oxygen species (ROS). Intriguingly, multiple forms of ROS are generated in virtually every plant cell compartment through diverse pathways. As a result, a sophisticated network of ROS detoxification and signaling that is simultaneously tailored to individual organelles and safeguards the entire cell is necessary. Here we take an organelle-centric view on the principal sources and sinks of ROS across the plant cell and provide insights into the ROS-induced organelle to nucleus retrograde signaling pathways needed for operational readjustments during environmental stresses.
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Affiliation(s)
- Su Yin Phua
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent,Belgium
- Center for Plant Systems Biology, VIB, Ghent,Belgium
| | - Barbara De Smet
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent,Belgium
- Center for Plant Systems Biology, VIB, Ghent,Belgium
| | - Claire Remacle
- Genetics and Physiology of Microalgae, InBios/Phytosystems, Université de Liège, Liège,Belgium
| | - Kai Xun Chan
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent,Belgium
- Center for Plant Systems Biology, VIB, Ghent,Belgium
| | - Frank Van Breusegem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent,Belgium
- Center for Plant Systems Biology, VIB, Ghent,Belgium
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16
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Considine MJ, Foyer CH. Oxygen and reactive oxygen species-dependent regulation of plant growth and development. PLANT PHYSIOLOGY 2021; 186:79-92. [PMID: 33793863 PMCID: PMC8154071 DOI: 10.1093/plphys/kiaa077] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/29/2020] [Indexed: 05/04/2023]
Abstract
Oxygen and reactive oxygen species (ROS) have been co-opted during evolution into the regulation of plant growth, development, and differentiation. ROS and oxidative signals arising from metabolism or phytohormone-mediated processes control almost every aspect of plant development from seed and bud dormancy, liberation of meristematic cells from the quiescent state, root and shoot growth, and architecture, to flowering and seed production. Moreover, the phytochrome and phytohormone-dependent transmissions of ROS waves are central to the systemic whole plant signaling pathways that integrate root and shoot growth. The sensing of oxygen availability through the PROTEOLYSIS 6 (PRT6) N-degron pathway functions alongside ROS production and signaling but how these pathways interact in developing organs remains poorly understood. Considerable progress has been made in our understanding of the nature of hydrogen peroxide sensors and the role of thiol-dependent signaling networks in the transmission of ROS signals. Reduction/oxidation (redox) changes in the glutathione (GSH) pool, glutaredoxins (GRXs), and thioredoxins (TRXs) are important in the control of growth mediated by phytohormone pathways. Although, it is clear that the redox states of proteins involved in plant growth and development are controlled by the NAD(P)H thioredoxin reductase (NTR)/TRX and reduced GSH/GRX systems of the cytosol, chloroplasts, mitochondria, and nucleus, we have only scratched the surface of this multilayered control and how redox-regulated processes interact with other cell signaling systems.
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Affiliation(s)
- Michael J Considine
- The School of Molecular Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Christine H Foyer
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, B15 2TT, UK
- Author for communication:
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17
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Fraudentali I, Rodrigues-Pousada RA, Tavladoraki P, Angelini R, Cona A. Leaf-Wounding Long-Distance Signaling Targets AtCuAOβ Leading to Root Phenotypic Plasticity. PLANTS 2020; 9:plants9020249. [PMID: 32075218 PMCID: PMC7076439 DOI: 10.3390/plants9020249] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/18/2020] [Accepted: 02/12/2020] [Indexed: 01/02/2023]
Abstract
The Arabidopsis gene AtCuAOβ (At4g14940) encodes an apoplastic copper amine oxidase (CuAO) highly expressed in guard cells of leaves and flowers and in root vascular tissues, especially in protoxylem and metaxylem precursors, where its expression is strongly induced by the wound signal methyl jasmonate (MeJA). The hydrogen peroxide (H2O2) derived by the AtCuAOβ-driven oxidation of the substrate putrescine (Put), mediates the MeJA-induced early root protoxylem differentiation. Considering that early root protoxylem maturation was also induced by both exogenous Put and leaf wounding through a signaling pathway involving H2O2, in the present study we investigated the role of AtCuAOβ in the leaf wounding-induced early protoxylem differentiation in combination with Put treatment. Quantitative and tissue specific analysis of AtCuAOβ gene expression by RT-qPCR and promoter::green fluorescent protein-β-glucuronidase fusion analysis revealed that wounding of the cotiledonary leaf induced AtCuAOβ gene expression which was particularly evident in root vascular tissues. AtCuAOβ loss-of-function mutants were unresponsive to the injury, not showing altered phenotype upon wounding in comparison to wild type seedlings. Exogenous Put and wounding did not show synergy in inducing early root protoxylem maturation, suggesting their involvement in a shared signaling pathway.
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Affiliation(s)
- Ilaria Fraudentali
- Department of Science, University “Roma Tre”, 00146 Rome, Italy; (I.F.); (P.T.); (R.A.)
| | | | - Paraskevi Tavladoraki
- Department of Science, University “Roma Tre”, 00146 Rome, Italy; (I.F.); (P.T.); (R.A.)
| | - Riccardo Angelini
- Department of Science, University “Roma Tre”, 00146 Rome, Italy; (I.F.); (P.T.); (R.A.)
| | - Alessandra Cona
- Department of Science, University “Roma Tre”, 00146 Rome, Italy; (I.F.); (P.T.); (R.A.)
- Correspondence: ; Tel.: +39-06-5733-6360
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18
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Lindermayr C, Rudolf EE, Durner J, Groth M. Interactions between metabolism and chromatin in plant models. Mol Metab 2020; 38:100951. [PMID: 32199818 PMCID: PMC7300381 DOI: 10.1016/j.molmet.2020.01.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/10/2020] [Accepted: 01/24/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND One of the fascinating aspects of epigenetic regulation is that it provides means to rapidly adapt to environmental change. This is particularly relevant in the plant kingdom, where most species are sessile and exposed to increasing habitat fluctuations due to global warming. Although the inheritance of epigenetically controlled traits acquired through environmental impact is a matter of debate, it is well documented that environmental cues lead to epigenetic changes, including chromatin modifications, that affect cell differentiation or are associated with plant acclimation and defense priming. Still, in most cases, the mechanisms involved are poorly understood. An emerging topic that promises to reveal new insights is the interaction between epigenetics and metabolism. SCOPE OF REVIEW This study reviews the links between metabolism and chromatin modification, in particular histone acetylation, histone methylation, and DNA methylation, in plants and compares them to examples from the mammalian field, where the relationship to human diseases has already generated a larger body of literature. This study particularly focuses on the role of reactive oxygen species (ROS) and nitric oxide (NO) in modulating metabolic pathways and gene activities that are involved in these chromatin modifications. As ROS and NO are hallmarks of stress responses, we predict that they are also pivotal in mediating chromatin dynamics during environmental responses. MAJOR CONCLUSIONS Due to conservation of chromatin-modifying mechanisms, mammals and plants share a common dependence on metabolic intermediates that serve as cofactors for chromatin modifications. In addition, plant-specific non-CG methylation pathways are particularly sensitive to changes in folate-mediated one-carbon metabolism. Finally, reactive oxygen and nitrogen species may fine-tune epigenetic processes and include similar signaling mechanisms involved in environmental stress responses in plants as well as animals.
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Affiliation(s)
- Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstrasse 1, 85764 München/Neuherberg, Germany.
| | - Eva Esther Rudolf
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstrasse 1, 85764 München/Neuherberg, Germany
| | - Jörg Durner
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstrasse 1, 85764 München/Neuherberg, Germany
| | - Martin Groth
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstrasse 1, 85764 München/Neuherberg, Germany.
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Postiglione AE, Muday GK. The Role of ROS Homeostasis in ABA-Induced Guard Cell Signaling. FRONTIERS IN PLANT SCIENCE 2020; 11:968. [PMID: 32695131 PMCID: PMC7338657 DOI: 10.3389/fpls.2020.00968] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 06/12/2020] [Indexed: 05/19/2023]
Abstract
The hormonal and environmental regulation of stomatal aperture is mediated by a complex signaling pathway found within the guard cells that surround stomata. Abscisic acid (ABA) induces stomatal closure in response to drought stress by binding to its guard cell localized receptor, initiating a signaling cascade that includes synthesis of reactive oxygen species (ROS). Genetic evidence in Arabidopsis indicates that ROS produced by plasma membrane respiratory burst oxidase homolog (RBOH) enzymes RBOHD and RBOHF modulate guard cell signaling and stomatal closure. However, ABA-induced ROS accumulates in many locations such as the cytoplasm, chloroplasts, nucleus, and endomembranes, some of which do not coincide with plasma membrane localized RBOHs. ABA-induced guard cell ROS accumulation has distinct spatial and temporal patterns that drive stomatal closure. Productive ROS signaling requires both rapid increases in ROS, as well as the ability of cells to prevent ROS from reaching damaging levels through synthesis of antioxidants, including flavonols. The relationship between locations of ROS accumulation and ABA signaling and the role of enzymatic and small molecule ROS scavengers in maintaining ROS homeostasis in guard cells are summarized in this review. Understanding the mechanisms of ROS production and homeostasis and the role of ROS in guard cell signaling can provide a better understanding of plant response to stress and could provide an avenue for the development of crop plants with increased stress tolerance.
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20
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Kolahi M, Mohajel Kazemi E, Yazdi M, Goldson-Barnaby A. Oxidative stress induced by cadmium in lettuce (Lactuca sativa Linn.): Oxidative stress indicators and prediction of their genes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 146:71-89. [PMID: 31734520 DOI: 10.1016/j.plaphy.2019.10.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/01/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
Environmental contamination with heavy metals is of concern as plants have the ability to absorb chemical toxicants facilitating the entry of toxic metals into the food chain. Lettuce (Lactuca sativa Linn.) was cultured in four nutrient solutions containing different concentrations of cadmium (0, 3, 6, and 9 mmol). The impact of heavy metal on the morphological features, antioxidant properties and antioxidant enzymes activity were investigated with primary focus on superoxide dismutase, ascorbate peroxidase, peroxidase and catalase enzymes. In silico methods were utilized in the study of the genes of these enzymes. Significant changes were observed in the morphological features of the plant with plants appearing stunted, more spherical and yellow in colour. A decrease in the dry mass of the plant was also detected. The Translocation factor (TF) for cadmium was significantly high in lettuce. Enhanced antioxidant enzymatic activity suggests that these enzymes are integrally involved in the defense mechanism of the plant to heavy metal stress. Also observed was an increase in total soluble protein, and total phenolic content. Total flavonoid content was not significantly affected. Fourteen genes encoding for ascorbate peroxidase and nineteen genes for superoxide dismutase were identified in lettuce. These enzymes varied from each other with regards to the number of exons and amino acids present, as well as their location within the cell. Plants exhibit various response mechanisms to combat heavy metal contamination.
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Affiliation(s)
- M Kolahi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - E Mohajel Kazemi
- Department of Plant Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
| | - M Yazdi
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - A Goldson-Barnaby
- Department of Chemistry, University of the West Indies, Mona, Jamaica
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21
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Belchí-Navarro S, Rubio MA, Pedreño MA, Almagro L. Production and localization of hydrogen peroxide and nitric oxide in grapevine cells elicited with cyclodextrins and methyl jasmonate. JOURNAL OF PLANT PHYSIOLOGY 2019; 237:80-86. [PMID: 31030109 DOI: 10.1016/j.jplph.2019.03.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/11/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
The use of methyl jasmonate, alone or in combination with cyclic oligosaccharides such as cyclodextrins, has proved to be a successful strategy for increasing the production of trans-resveratrol in Vitis vinifera cell cultures. However, understanding the intracellular signalling pathways involved in its production would improve the management of grapevine cells as biofactories of this high-value natural product. The results obtained herein confirm the involvement of hydrogen peroxide and nitric oxide in cyclodextrins and methyl jasmonate-induced trans-resveratrol production in grapevine cell cultures. In fact, methyl jasmonate led to maximal intracellular levels of hydrogen peroxide and nitric oxide after 24 h of treatment, but extracellular hydrogen peroxide was only detected in the culture medium when grapevine cells were treated with cyclodextrins. The results derived from the cytochemical detection of H2O2 in elicited grapevine cell cultures also suggested that the combined treatment with cyclodextrins and methyl jasmonate not only increased the production of H2O2 but also released cell wall fragments with electron-dense deposits. Moreover, nitric oxide was localized in all the cellular compartments, particularly in the nucleus and cytoplasmic organelles, whereas hydrogen peroxide was mainly found in cytoplasmic areas close to the cell wall, and in the nucleoplasm.
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Affiliation(s)
- Sarai Belchí-Navarro
- Department of Plant Biology, Faculty of Biology, University of Murcia, Campus de Espinardo, E-30100, Murcia, Spain
| | - Marina Abellán Rubio
- Department of Plant Biology, Faculty of Biology, University of Murcia, Campus de Espinardo, E-30100, Murcia, Spain
| | - María Angeles Pedreño
- Department of Plant Biology, Faculty of Biology, University of Murcia, Campus de Espinardo, E-30100, Murcia, Spain
| | - Lorena Almagro
- Department of Plant Biology, Faculty of Biology, University of Murcia, Campus de Espinardo, E-30100, Murcia, Spain.
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22
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Zhang L, Chen L, Dong H. Plant Aquaporins in Infection by and Immunity Against Pathogens - A Critical Review. FRONTIERS IN PLANT SCIENCE 2019; 10:632. [PMID: 31191567 PMCID: PMC6546722 DOI: 10.3389/fpls.2019.00632] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/26/2019] [Indexed: 05/18/2023]
Abstract
Plant aquaporins (AQPs) of the plasma membrane intrinsic protein (PIP) family face constant risk of hijack by pathogens aiming to infect plants. PIPs can also be involved in plant immunity against infection. This review will utilize two case studies to discuss biochemical and structural mechanisms that govern the functions of PIPs in the regulation of plant infection and immunity. The first example concerns the interaction between rice Oryza sativa and the bacterial blight pathogen Xanthomonas oryzae pv. oryzae (Xoo). To infect rice, Xoo uses the type III (T3) secretion system to secrete the proteic translocator Hpa1, and Hpa1 subsequently mediates the translocation of T3 effectors secreted by this system. Once shifted from bacteria into rice cells, effectors exert virulent or avirulent effects depending on the susceptibility of the rice varieties. The translocator function of Hpa1 requires cooperation with OsPIP1;3, the rice interactor of Hpa1. This role of OsPIP1;3 is related to regulatory models of effector translocation. The regulatory models have been proposed as, translocon-dependent delivery, translocon-independent pore formation, and effector endocytosis with membrane protein/lipid trafficking. The second case study includes the interaction of Hpa1 with the H2O2 transport channel AtPIP1;4, and the associated consequence for H2O2 signal transduction of immunity pathways in Arabidopsis thaliana, a non-host of Xoo. H2O2 is generated in the apoplast upon induction by a pathogen or microbial pattern. H2O2 from this source translocates quickly into Arabidopsis cells, where it interacts with pathways of intracellular immunity to confer plant resistance against diseases. To expedite H2O2 transport, AtPIP1;4 must adopt a specific conformation in a number of ways, including channel width extension through amino acid interactions and selectivity for H2O2 through amino acid protonation and tautomeric reactions. Both topics will reference relevant studies, conducted on other organisms and AQPs, to highlight possible mechanisms of T3 effector translocation currently under debate, and highlight the structural basis of AtPIP1;4 in H2O2 transport facilitated by gating and trafficking regulation.
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Affiliation(s)
- Liyuan Zhang
- Plant Immunity Research Group, National Key Laboratory of Crop Science, Department of Plant Pathology, Shandong Agricultural University, Tai’an, China
| | - Lei Chen
- Plant Immunity Research Group, National Key Laboratory of Crop Science, Department of Plant Pathology, Shandong Agricultural University, Tai’an, China
| | - Hansong Dong
- Plant Immunity Research Group, National Key Laboratory of Crop Science, Department of Plant Pathology, Shandong Agricultural University, Tai’an, China
- Plant Immunity Laboratory, Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
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23
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Fraudentali I, Rodrigues-Pousada RA, Volpini A, Tavladoraki P, Angelini R, Cona A. Stress-Triggered Long-Distance Communication Leads to Phenotypic Plasticity: The Case of the Early Root Protoxylem Maturation Induced by Leaf Wounding in Arabidopsis. PLANTS 2018; 7:plants7040107. [PMID: 30518030 PMCID: PMC6313916 DOI: 10.3390/plants7040107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 12/17/2022]
Abstract
Root architecture and xylem phenotypic plasticity influence crop productivity by affecting water and nutrient uptake, especially under those environmental stress, which limit water supply or imply excessive water losses. Xylem maturation depends on coordinated events of cell wall lignification and developmental programmed cell death (PCD), which could both be triggered by developmental- and/or stress-driven hydrogen peroxide (H2O2) production. Here, the effect of wounding of the cotyledonary leaf on root protoxylem maturation was explored in Arabidopsis thaliana by analysis under Laser Scanning Confocal Microscope (LSCM). Leaf wounding induced early root protoxylem maturation within 3 days from the injury, as after this time protoxylem position was found closer to the tip. The effect of leaf wounding on protoxylem maturation was independent from root growth or meristem size, that did not change after wounding. A strong H2O2 accumulation was detected in root protoxylem 6 h after leaf wounding. Furthermore, the H2O2 trap N,N1-dimethylthiourea (DMTU) reversed wound-induced early protoxylem maturation, confirming the need for H2O2 production in this signaling pathway.
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Affiliation(s)
| | | | | | | | | | - Alessandra Cona
- Department of Science, University "Roma Tre", 00146 Rome, Italy.
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24
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Matamoros MA, Kim A, Peñuelas M, Ihling C, Griesser E, Hoffmann R, Fedorova M, Frolov A, Becana M. Protein Carbonylation and Glycation in Legume Nodules. PLANT PHYSIOLOGY 2018; 177:1510-1528. [PMID: 29970413 PMCID: PMC6084676 DOI: 10.1104/pp.18.00533] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 05/08/2023]
Abstract
Nitrogen fixation is an agronomically and environmentally important process catalyzed by bacterial nitrogenase within legume root nodules. These unique symbiotic organs have high metabolic rates and produce large amounts of reactive oxygen species that may modify proteins irreversibly. Here, we examined two types of oxidative posttranslational modifications of nodule proteins: carbonylation, which occurs by direct oxidation of certain amino acids or by interaction with reactive aldehydes arising from cell membrane lipid peroxides; and glycation, which results from the reaction of lysine and arginine residues with reducing sugars or their autooxidation products. We used a strategy based on the enrichment of carbonylated peptides by affinity chromatography followed by liquid chromatography-tandem mass spectrometry to identify 369 oxidized proteins in bean (Phaseolus vulgaris) nodules. Of these, 238 corresponded to plant proteins and 131 to bacterial proteins. Lipid peroxidation products induced most carbonylation sites. This study also revealed that carbonylation has major effects on two key nodule proteins. Metal-catalyzed oxidation caused the inactivation of malate dehydrogenase and the aggregation of leghemoglobin. In addition, numerous glycated proteins were identified in vivo, including three key nodule proteins: sucrose synthase, glutamine synthetase, and glutamate synthase. Label-free quantification identified 10 plant proteins and 18 bacterial proteins as age-specifically glycated. Overall, our results suggest that the selective carbonylation or glycation of crucial proteins involved in nitrogen metabolism, transcriptional regulation, and signaling may constitute a mechanism to control cell metabolism and nodule senescence.
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Affiliation(s)
- Manuel A Matamoros
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
| | - Ahyoung Kim
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - María Peñuelas
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
| | - Christian Ihling
- Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Martin-Luther Universität Halle-Wittenberg, 06099 Halle (Saale), Germany
| | - Eva Griesser
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Ralf Hoffmann
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Andrej Frolov
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
- Department of Biochemistry, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Manuel Becana
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
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25
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Matamoros MA, Kim A, Peñuelas M, Ihling C, Griesser E, Hoffmann R, Fedorova M, Frolov A, Becana M. Protein Carbonylation and Glycation in Legume Nodules. PLANT PHYSIOLOGY 2018; 177:1510-1528. [PMID: 29970413 DOI: 10.1104/pp.18/00533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 05/26/2023]
Abstract
Nitrogen fixation is an agronomically and environmentally important process catalyzed by bacterial nitrogenase within legume root nodules. These unique symbiotic organs have high metabolic rates and produce large amounts of reactive oxygen species that may modify proteins irreversibly. Here, we examined two types of oxidative posttranslational modifications of nodule proteins: carbonylation, which occurs by direct oxidation of certain amino acids or by interaction with reactive aldehydes arising from cell membrane lipid peroxides; and glycation, which results from the reaction of lysine and arginine residues with reducing sugars or their autooxidation products. We used a strategy based on the enrichment of carbonylated peptides by affinity chromatography followed by liquid chromatography-tandem mass spectrometry to identify 369 oxidized proteins in bean (Phaseolus vulgaris) nodules. Of these, 238 corresponded to plant proteins and 131 to bacterial proteins. Lipid peroxidation products induced most carbonylation sites. This study also revealed that carbonylation has major effects on two key nodule proteins. Metal-catalyzed oxidation caused the inactivation of malate dehydrogenase and the aggregation of leghemoglobin. In addition, numerous glycated proteins were identified in vivo, including three key nodule proteins: sucrose synthase, glutamine synthetase, and glutamate synthase. Label-free quantification identified 10 plant proteins and 18 bacterial proteins as age-specifically glycated. Overall, our results suggest that the selective carbonylation or glycation of crucial proteins involved in nitrogen metabolism, transcriptional regulation, and signaling may constitute a mechanism to control cell metabolism and nodule senescence.
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Affiliation(s)
- Manuel A Matamoros
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
| | - Ahyoung Kim
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
| | - María Peñuelas
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
| | - Christian Ihling
- Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Martin-Luther Universität Halle-Wittenberg, 06099 Halle (Saale), Germany
| | - Eva Griesser
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Ralf Hoffmann
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Maria Fedorova
- Institute of Bioanalytical Chemistry, Faculty of Chemistry and Mineralogy and Center for Biotechnology and Biomedicine, Leipzig University, 04103 Leipzig, Germany
| | - Andrej Frolov
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany
- Department of Biochemistry, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Manuel Becana
- Departamento de Nutrición Vegetal, Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, 50080 Zaragoza, Spain
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26
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Czarnocka W, Karpiński S. Friend or foe? Reactive oxygen species production, scavenging and signaling in plant response to environmental stresses. Free Radic Biol Med 2018; 122:4-20. [PMID: 29331649 DOI: 10.1016/j.freeradbiomed.2018.01.011] [Citation(s) in RCA: 284] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/17/2017] [Accepted: 01/09/2018] [Indexed: 01/11/2023]
Abstract
In the natural environment, plants are exposed to a variety of biotic and abiotic stress conditions that trigger rapid changes in the production and scavenging of reactive oxygen species (ROS). The production and scavenging of ROS is compartmentalized, which means that, depending on stimuli type, they can be generated and eliminated in different cellular compartments such as the apoplast, plasma membrane, chloroplasts, mitochondria, peroxisomes, and endoplasmic reticulum. Although the accumulation of ROS is generally harmful to cells, ROS play an important role in signaling pathways that regulate acclimatory and defense responses in plants, such as systemic acquired acclimation (SAA) and systemic acquired resistance (SAR). However, high accumulations of ROS can also trigger redox homeostasis disturbance which can lead to cell death, and in consequence, to a limitation in biomass and yield production. Different ROS have various half-lifetimes and degrees of reactivity toward molecular components such as lipids, proteins, and nucleic acids. Thus, they play different roles in intra- and extra-cellular signaling. Despite their possible damaging effect, ROS should mainly be considered as signaling molecules that regulate local and systemic acclimatory and defense responses. Over the past two decades it has been proven that ROS together with non-photochemical quenching (NPQ), hormones, Ca2+ waves, and electrical signals are the main players in SAA and SAR, two physiological processes essential for plant survival and productivity in unfavorable conditions.
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Affiliation(s)
- Weronika Czarnocka
- Department of Plant Genetics, Breeding and Biotechnology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences (SGGW), Nowoursynowska Street 159, 02-776 Warsaw, Poland; Department of Botany, Faculty of Agriculture and Biology, Warsaw University of Life Sciences (SGGW), Nowoursynowska Street 159, 02-776 Warsaw, Poland
| | - Stanisław Karpiński
- Department of Plant Genetics, Breeding and Biotechnology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences (SGGW), Nowoursynowska Street 159, 02-776 Warsaw, Poland; The Plant Breeding and Acclimatization Institute (IHAR) - National Research Institute, Radzików, 05-870 Błonie, Poland.
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27
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Ortega-Villasante C, Burén S, Blázquez-Castro A, Barón-Sola Á, Hernández LE. Fluorescent in vivo imaging of reactive oxygen species and redox potential in plants. Free Radic Biol Med 2018; 122:202-220. [PMID: 29627452 DOI: 10.1016/j.freeradbiomed.2018.04.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 03/26/2018] [Accepted: 04/04/2018] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are by-products of aerobic metabolism, and excessive production can result in oxidative stress and cell damage. In addition, ROS function as cellular messengers, working as redox regulators in a multitude of biological processes. Understanding ROS signalling and stress responses requires methods for precise imaging and quantification to monitor local, subcellular and global ROS dynamics with high selectivity, sensitivity and spatiotemporal resolution. In this review, we summarize the present knowledge for in vivo plant ROS imaging and detection, using both chemical probes and fluorescent protein-based biosensors. Certain characteristics of plant tissues, for example high background autofluorescence in photosynthetic organs and the multitude of endogenous antioxidants, can interfere with ROS and redox potential detection, making imaging extra challenging. Novel methods and techniques to measure in vivo plant ROS and redox changes with better selectivity, accuracy, and spatiotemporal resolution are therefore desirable to fully acknowledge the remarkably complex plant ROS signalling networks.
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Affiliation(s)
- Cristina Ortega-Villasante
- Fisiología Vegetal, Departamento de Biología, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain.
| | - Stefan Burén
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223 Pozuelo de Alarcón, Madrid, Spain
| | - Alfonso Blázquez-Castro
- Departamento de Física de Materiales, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Ángel Barón-Sola
- Fisiología Vegetal, Departamento de Biología, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Luis E Hernández
- Fisiología Vegetal, Departamento de Biología, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
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28
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Elani Y, Trantidou T, Wylie D, Dekker L, Polizzi K, Law RV, Ces O. Constructing vesicle-based artificial cells with embedded living cells as organelle-like modules. Sci Rep 2018. [PMID: 29540757 PMCID: PMC5852042 DOI: 10.1038/s41598-018-22263-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
There is increasing interest in constructing artificial cells by functionalising lipid vesicles with biological and synthetic machinery. Due to their reduced complexity and lack of evolved biochemical pathways, the capabilities of artificial cells are limited in comparison to their biological counterparts. We show that encapsulating living cells in vesicles provides a means for artificial cells to leverage cellular biochemistry, with the encapsulated cells serving organelle-like functions as living modules inside a larger synthetic cell assembly. Using microfluidic technologies to construct such hybrid cellular bionic systems, we demonstrate that the vesicle host and the encapsulated cell operate in concert. The external architecture of the vesicle shields the cell from toxic surroundings, while the cell acts as a bioreactor module that processes encapsulated feedstock which is further processed by a synthetic enzymatic metabolism co-encapsulated in the vesicle.
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Affiliation(s)
- Yuval Elani
- Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK. .,Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
| | - Tatiana Trantidou
- Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Douglas Wylie
- Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.,Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Linda Dekker
- Department of Life Sciences, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Karen Polizzi
- Department of Life Sciences, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Robert V Law
- Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
| | - Oscar Ces
- Department of Chemistry, Imperial College London, Exhibition Road, London, SW7 2AZ, UK. .,Institute of Chemical Biology, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
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29
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Wietheger A, Starzak DE, Gould KS, Davy SK. Differential ROS Generation in Response to Stress in Symbiodinium spp. THE BIOLOGICAL BULLETIN 2018; 234:11-21. [PMID: 29694799 DOI: 10.1086/696977] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oxidative stress inside cells occurs when the production of reactive oxygen species (ROS) is no longer efficiently counterbalanced by the generation of antioxidants. In this study, we measured the intracellular production of ROS, including hydrogen peroxide (H2O2), superoxide (O2-), and singlet oxygen (1O2), in cultured dinoflagellates of the genus Symbiodinium under thermal and oxidative stress. ROS tagged with fluorescent probes were measured by flow cytometry. Dissimilar Symbiodinium internal transcribed spacer 2 (ITS2) clades or phylotypes (A1, B2, E, F1) produced ROS in different quantities in response to stress. For example, when comparing the control (26 °C) to the high-temperature treatment (35 °C), Symbiodinium E showed no change in the intracellular concentrations of any of the ROS; but phylotype A1 displayed a 10-fold increase in the overall ROS concentration and a 4-fold increase in O2-. Under oxidative stress, when 8 mmol l-1 H2O2 was added to the cells, these same two Symbiodinium phylotypes increased their overall concentrations of ROS, but only Symbiodinium E showed an increase in the concentrations of O2- (2×) and 1O2 (3×). Therefore, not only were the stress responses of the various Symbiodinium phylotypes different but also the responses of individual phylotypes to thermal and oxidative stress were different in terms of ROS production. Variation in the quality and quantity of ROS generation and its implications for subsequent antioxidant production suggest that different stress mechanisms are at play. While our experiments were done under laboratory conditions that did not necessarily mirror ecological ones, these results provide new insight into processes inside Symbiodinium cells during stress events and add new explanations for a phylotype's susceptibility to stress.
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Key Words
- 1O2, singlet oxygen
- APX, ascorbate peroxidase
- CAT, catalase
- DMSO, dimethyl sulfoxide
- H2DCF-DA, 2′,7′-dichlorodihydrofluorescein diacetate
- ITS2, internal transcribed spacer 2
- NPQ, non-photochemical quenching
- O2−, superoxide
- OEC, oxygen-evolving complex
- OH•, hydroxyl radical
- PSI/II, photosystem I/II
- ROS, reactive oxygen species
- SOD, superoxide dismutase
- SOG, singlet oxygen sensor green
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30
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Park KY, Roubelakis-Angelakis KA. Real-Time In Vivo Monitoring of Reactive Oxygen Species in Guard Cells. Methods Mol Biol 2018; 1694:417-425. [PMID: 29080184 DOI: 10.1007/978-1-4939-7398-9_34] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The intra-/intercellular homeostasis of reactive oxygen species (ROS), and especially of superoxides (O2.-) and hydrogen peroxide (O2.-) participate in signalling cascades which dictate developmental processes and reactions to biotic/abiotic stresses. Polyamine oxidases terminally oxidize/back convert polyamines generating H2O2. Recently, an NADPH-oxidase/Polyamine oxidase feedback loop was identified to control oxidative burst under salinity. Thus, the real-time localization/monitoring of ROS in specific cells, such as the guard cells, can be of great interest. Here we present a detailed description of the real-time in vivo monitoring of ROS in the guard cells using H2O2- and O2.- specific fluorescing probes, which can be used for studying ROS accumulation generated from any source, including the amine oxidases-dependent pathway, during development and stress.
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Affiliation(s)
- Ky Young Park
- Department of Biology, Sunchon National University, 57922, Chonnam, South Korea
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31
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Martins L, Trujillo-Hernandez JA, Reichheld JP. Thiol Based Redox Signaling in Plant Nucleus. FRONTIERS IN PLANT SCIENCE 2018; 9:705. [PMID: 29892308 PMCID: PMC5985474 DOI: 10.3389/fpls.2018.00705] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/09/2018] [Indexed: 05/18/2023]
Abstract
Reactive oxygen species (ROS) are well-described by-products of cellular metabolic activities, acting as signaling molecules and regulating the redox state of proteins. Solvent exposed thiol residues like cysteines are particularly sensitive to oxidation and their redox state affects structural and biochemical capacities of many proteins. While thiol redox regulation has been largely studied in several cell compartments like in the plant chloroplast, little is known about redox sensitive proteins in the nucleus. Recent works have revealed that proteins with oxidizable thiols are important for the regulation of many nuclear functions, including gene expression, transcription, epigenetics, and chromatin remodeling. Moreover, thiol reducing molecules like glutathione and specific isoforms of thiols reductases, thioredoxins and glutaredoxins were found in different nuclear subcompartments, further supporting that thiol-dependent systems are active in the nucleus. This mini-review aims to discuss recent progress in plant thiol redox field, taking examples of redox regulated nuclear proteins and focusing on major thiol redox systems acting in the nucleus.
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Affiliation(s)
- Laura Martins
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, Perpignan, France
| | - José Abraham Trujillo-Hernandez
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, Perpignan, France
| | - Jean-Philippe Reichheld
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, Perpignan, France
- *Correspondence: Jean-Philippe Reichheld,
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32
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Kwaaitaal M, Nielsen ME, Böhlenius H, Thordal-Christensen H. The plant membrane surrounding powdery mildew haustoria shares properties with the endoplasmic reticulum membrane. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:5731-5743. [PMID: 29237056 PMCID: PMC5854130 DOI: 10.1093/jxb/erx403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 10/26/2017] [Indexed: 05/18/2023]
Abstract
Many filamentous plant pathogens place specialized feeding structures, called haustoria, inside living host cells. As haustoria grow, they are believed to manipulate plant cells to generate a specialized, still enigmatic extrahaustorial membrane (EHM) around them. Here, we focused on revealing properties of the EHM. With the help of membrane-specific dyes and transient expression of membrane-associated proteins fused to fluorescent tags, we studied the nature of the EHM generated by barley leaf epidermal cells around powdery mildew haustoria. Observations suggesting that endoplasmic reticulum (ER) membrane-specific dyes labelled the EHM led us to find that Sar1 and RabD2a GTPases bind this membrane. These proteins are usually associated with the ER and the ER/cis-Golgi membrane, respectively. In contrast, transmembrane and luminal ER and Golgi markers failed to label the EHM, suggesting that it is not a continuum of the ER. Furthermore, GDP-locked Sar1 and a nucleotide-free RabD2a, which block ER to Golgi exit, did not hamper haustorium formation. These results indicated that the EHM shares features with the plant ER membrane, but that the EHM membrane is not dependent on conventional secretion. This raises the prospect that an unconventional secretory pathway from the ER may provide this membrane's material. Understanding these processes will assist future approaches to providing resistance by preventing EHM generation.
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Affiliation(s)
- Mark Kwaaitaal
- Section for Plant and Soil Science, Department of Plant and Environmental Sciences, Copenhagen Plant Science Center (CPSC), Faculty of Science, University of Copenhagen, Denmark
| | - Mads Eggert Nielsen
- Section for Plant and Soil Science, Department of Plant and Environmental Sciences, Copenhagen Plant Science Center (CPSC), Faculty of Science, University of Copenhagen, Denmark
| | - Henrik Böhlenius
- Section for Plant and Soil Science, Department of Plant and Environmental Sciences, Copenhagen Plant Science Center (CPSC), Faculty of Science, University of Copenhagen, Denmark
| | - Hans Thordal-Christensen
- Section for Plant and Soil Science, Department of Plant and Environmental Sciences, Copenhagen Plant Science Center (CPSC), Faculty of Science, University of Copenhagen, Denmark
- Correspondence:
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Calderón A, Ortiz-Espín A, Iglesias-Fernández R, Carbonero P, Pallardó FV, Sevilla F, Jiménez A. Thioredoxin (Trxo1) interacts with proliferating cell nuclear antigen (PCNA) and its overexpression affects the growth of tobacco cell culture. Redox Biol 2017; 11:688-700. [PMID: 28183062 PMCID: PMC5299145 DOI: 10.1016/j.redox.2017.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/19/2017] [Accepted: 01/26/2017] [Indexed: 12/20/2022] Open
Abstract
Thioredoxins (Trxs), key components of cellular redox regulation, act by controlling the redox status of many target proteins, and have been shown to play an essential role in cell survival and growth. The presence of a Trx system in the nucleus has received little attention in plants, and the nuclear targets of plant Trxs have not been conclusively identified. Thus, very little is known about the function of Trxs in this cellular compartment. Previously, we studied the intracellular localization of PsTrxo1 and confirmed its presence in mitochondria and, interestingly, in the nucleus under standard growth conditions. In investigating the nuclear function of PsTrxo1 we identified proliferating cellular nuclear antigen (PCNA) as a PsTrxo1 target by means of affinity chromatography techniques using purified nuclei from pea leaves. Such protein-protein interaction was corroborated by dot-blot and bimolecular fluorescence complementation (BiFC) assays, which showed that both proteins interact in the nucleus. Moreover, PsTrxo1 showed disulfide reductase activity on previously oxidized recombinant PCNA protein. In parallel, we studied the effects of PsTrxo1 overexpression on Tobacco Bright Yellow-2 (TBY-2) cell cultures. Microscopy and flow-cytometry analysis showed that PsTrxo1 overexpression increases the rate of cell proliferation in the transformed lines, with a higher percentage of the S phase of the cell cycle at the beginning of the cell culture (days 1 and 3) and at the G2/M phase after longer times of culture (day 9), coinciding with an upregulation of PCNA protein. Furthermore, in PsTrxo1 overexpressed cells there is a decrease in the total cellular glutathione content but maintained nuclear GSH accumulation, especially at the end of the culture, which is accompanied by a higher mitotic index, unlike non-overexpressing cells. These results suggest that Trxo1 is involved in the cell cycle progression of TBY-2 cultures, possibly through its link with cellular PCNA and glutathione.
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Affiliation(s)
- Aingeru Calderón
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Campus Universitario de Espinardo, E-30100 Murcia, Spain.
| | - Ana Ortiz-Espín
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Campus Universitario de Espinardo, E-30100 Murcia, Spain.
| | - Raquel Iglesias-Fernández
- Centre for Plant Biotechnology and Genomics (CBGP; UPM-INIA), Campus de Montegancedo, Universidad Politécnica de Madrid, Pozuelo de Alarcón, E-28223 Madrid, Spain.
| | - Pilar Carbonero
- Centre for Plant Biotechnology and Genomics (CBGP; UPM-INIA), Campus de Montegancedo, Universidad Politécnica de Madrid, Pozuelo de Alarcón, E-28223 Madrid, Spain.
| | - Federico Vicente Pallardó
- Department of Physiology, Faculty of Medicine, University of Valencia, Av. Blasco Ibañez 15, E-46010 Valencia, Spain.
| | - Francisca Sevilla
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Campus Universitario de Espinardo, E-30100 Murcia, Spain.
| | - Ana Jiménez
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Campus Universitario de Espinardo, E-30100 Murcia, Spain.
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Jwa NS, Hwang BK. Convergent Evolution of Pathogen Effectors toward Reactive Oxygen Species Signaling Networks in Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:1687. [PMID: 29033963 PMCID: PMC5627460 DOI: 10.3389/fpls.2017.01687] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/13/2017] [Indexed: 05/03/2023]
Abstract
Microbial pathogens have evolved protein effectors to promote virulence and cause disease in host plants. Pathogen effectors delivered into plant cells suppress plant immune responses and modulate host metabolism to support the infection processes of pathogens. Reactive oxygen species (ROS) act as cellular signaling molecules to trigger plant immune responses, such as pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity. In this review, we discuss recent insights into the molecular functions of pathogen effectors that target multiple steps in the ROS signaling pathway in plants. The perception of PAMPs by pattern recognition receptors leads to the rapid and strong production of ROS through activation of NADPH oxidase Respiratory Burst Oxidase Homologs (RBOHs) as well as peroxidases. Specific pathogen effectors directly or indirectly interact with plant nucleotide-binding leucine-rich repeat receptors to induce ROS production and the hypersensitive response in plant cells. By contrast, virulent pathogens possess effectors capable of suppressing plant ROS bursts in different ways during infection. PAMP-triggered ROS bursts are suppressed by pathogen effectors that target mitogen-activated protein kinase cascades. Moreover, pathogen effectors target vesicle trafficking or metabolic priming, leading to the suppression of ROS production. Secreted pathogen effectors block the metabolic coenzyme NADP-malic enzyme, inhibiting the transfer of electrons to the NADPH oxidases (RBOHs) responsible for ROS generation. Collectively, pathogen effectors may have evolved to converge on a common host protein network to suppress the common plant immune system, including the ROS burst and cell death response in plants.
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Affiliation(s)
- Nam-Soo Jwa
- Division of Integrative Bioscience and Biotechnology, College of Life Sciences, Sejong University, Seoul, South Korea
- *Correspondence: Nam-Soo Jwa,
| | - Byung Kook Hwang
- Laboratory of Molecular Plant Pathology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
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35
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Redwan M, Spinelli F, Marti L, Weiland M, Palm E, Azzarello E, Mancuso S. Potassium fluxes and reactive oxygen species production as potential indicators of salt tolerance in Cucumis sativus. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:1016-1027. [PMID: 32480523 DOI: 10.1071/fp16120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/22/2016] [Indexed: 05/26/2023]
Abstract
Salt stress, among other abiotic stresses, has a high impact on crop yield. Salt tolerance is a multifactorial trait that involves the ability of cells to retain K ions, regulate reactive O species (ROS) production, and synthesise new molecules to cope with osmotic stress. In the present work, two different cultivars of Cucumis sativus L. (cv. Parys, sensitive; cv. Polan, tolerant) were selected based on their germination capabilities under 100mM NaCl. The capacity of these two cultivars to tolerate salt stress was analysed using several different physiological and genetic approaches. K+ fluxes from roots, as an immediate response to salinity, showed the higher ability of cv. Polan to maintain K+ compared with cv. Parys, according to the expression level of inward rectifying potassium channel 1 (AKT1). ROS production was also investigated in both cultivars and a higher basal ROS level was observed in cv. Polan than in cv. Parys. Concurrently, an increased basal level of respiratory burst oxidase homologue F (RBOHF) gene was also found, as well as a strong induction of the ethylene responsive factor 109 (ERF109) transcription factor after salt treatment in cv. Polan. Our data suggest that roots' ability to retain K+, a higher level of RBOHF and a strong induction of ERF109 should all be considered important components for salt tolerance in C. sativus.
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Affiliation(s)
- Mirvat Redwan
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Francesco Spinelli
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Lucia Marti
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Matthias Weiland
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Emily Palm
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Elisa Azzarello
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Stefano Mancuso
- Department of Plant, Soil and Environmental Science, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
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Gémes K, Kim YJ, Park KY, Moschou PN, Andronis E, Valassaki C, Roussis A, Roubelakis-Angelakis KA. An NADPH-Oxidase/Polyamine Oxidase Feedback Loop Controls Oxidative Burst Under Salinity. PLANT PHYSIOLOGY 2016; 172:1418-1431. [PMID: 27600815 PMCID: PMC5100782 DOI: 10.1104/pp.16.01118] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 08/30/2016] [Indexed: 05/18/2023]
Abstract
The apoplastic polyamine oxidase (PAO) catalyzes the oxidation of the higher polyamines spermidine and spermine, contributing to hydrogen peroxide (H2O2) accumulation. However, it is yet unclear whether apoplastic PAO is part of a network that coordinates the accumulation of reactive oxygen species (ROS) under salinity or if it acts independently. Here, we unravel that NADPH oxidase and apoplastic PAO cooperate to control the accumulation of H2O2 and superoxides (O2·-) in tobacco (Nicotiana tabacum). To examine to what extent apoplastic PAO constitutes part of a ROS-generating network, we examined ROS accumulation in guard cells of plants overexpressing or down-regulating apoplastic PAO (lines S2.2 and A2, respectively) or down-regulating NADPH oxidase (line AS-NtRbohD/F). The H2O2-specific probe benzene sulfonyl-H2O2 showed that, under salinity, H2O2 increased in S2.2 and decreased in A2 compared with the wild type. Surprisingly, the O2·--specific probe benzene sulfonyl-So showed that O2·- levels correlated positively with that of apoplastic PAO (i.e. showed high and low levels in S2.2 and A2, respectively). By using AS-NtRbohD/F lines and a pharmacological approach, we could show that H2O2 and O2·- accumulation at the onset of salinity stress was dependent on NADPH oxidase, indicating that NADPH oxidase is upstream of apoplastic PAO. Our results suggest that NADPH oxidase and the apoplastic PAO form a feed-forward ROS amplification loop, which impinges on oxidative state and culminates in the execution of programmed cell death. We propose that the PAO/NADPH oxidase loop is a central hub in the plethora of responses controlling salt stress tolerance, with potential functions extending beyond stress tolerance.
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Affiliation(s)
- Katalin Gémes
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.)
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.)
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.)
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Yu Jung Kim
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.)
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.)
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.)
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Ky Young Park
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.);
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.);
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.);
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Panagiotis N Moschou
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.);
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.);
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.);
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Efthimios Andronis
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.)
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.)
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.)
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Chryssanthi Valassaki
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.)
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.)
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.)
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Andreas Roussis
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.)
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.)
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.)
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
| | - Kalliopi A Roubelakis-Angelakis
- Department of Biology, University of Crete, Voutes University Campus, Heraklion 700 13, Greece (K.G., E.A., K.A.R.-A.);
- Department of Biology, Sunchon National University, 57922 Chonnam, South Korea (Y.J.K., K.Y.P.);
- Department of Plant Biology and Linnean Center of Plant Sciences, Swedish University of Agricultural Sciences, Uppsala BioCentrum, 750 07 Uppsala, Sweden (P.N.M.);
- Department of Biology, National and Kapodistrian University of Athens, Panepistimioupolis, Ilissia, Athens 118 55, Greece (C.V., A.R.); and
- Biological Research Centre, Hungarian Academy of Sciences, H-6726 Szeged, Hungary (K.G.)
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37
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Quantification of hydrogen peroxide in plant tissues using Amplex Red. Methods 2016; 109:105-113. [DOI: 10.1016/j.ymeth.2016.07.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/11/2016] [Accepted: 07/25/2016] [Indexed: 11/17/2022] Open
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Ortega-Villasante C, Burén S, Barón-Sola Á, Martínez F, Hernández LE. In vivo ROS and redox potential fluorescent detection in plants: Present approaches and future perspectives. Methods 2016; 109:92-104. [DOI: 10.1016/j.ymeth.2016.07.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 07/08/2016] [Accepted: 07/11/2016] [Indexed: 11/16/2022] Open
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Tian S, Wang X, Li P, Wang H, Ji H, Xie J, Qiu Q, Shen D, Dong H. Plant Aquaporin AtPIP1;4 Links Apoplastic H2O2 Induction to Disease Immunity Pathways. PLANT PHYSIOLOGY 2016; 171:1635-50. [PMID: 26945050 PMCID: PMC4936539 DOI: 10.1104/pp.15.01237] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 03/03/2016] [Indexed: 05/18/2023]
Abstract
Hydrogen peroxide (H2O2) is a stable component of reactive oxygen species, and its production in plants represents the successful recognition of pathogen infection and pathogen-associated molecular patterns (PAMPs). This production of H2O2 is typically apoplastic but is subsequently associated with intracellular immunity pathways that regulate disease resistance, such as systemic acquired resistance and PAMP-triggered immunity. Here, we elucidate that an Arabidopsis (Arabidopsis thaliana) aquaporin (i.e. the plasma membrane intrinsic protein AtPIP1;4) acts to close the cytological distance between H2O2 production and functional performance. Expression of the AtPIP1;4 gene in plant leaves is inducible by a bacterial pathogen, and the expression accompanies H2O2 accumulation in the cytoplasm. Under de novo expression conditions, AtPIP1;4 is able to mediate the translocation of externally applied H2O2 into the cytoplasm of yeast (Saccharomyces cerevisiae) cells. In plant cells treated with H2O2, AtPIP1;4 functions as an effective facilitator of H2O2 transport across plasma membranes and mediates the translocation of externally applied H2O2 from the apoplast to the cytoplasm. The H2O2-transport role of AtPIP1;4 is essentially required for the cytoplasmic import of apoplastic H2O2 induced by the bacterial pathogen and two typical PAMPs in the absence of induced production of intracellular H2O2 As a consequence, cytoplasmic H2O2 quantities increase substantially while systemic acquired resistance and PAMP-triggered immunity are activated to repress the bacterial pathogenicity. By contrast, loss-of-function mutation at the AtPIP1;4 gene locus not only nullifies the cytoplasmic import of pathogen- and PAMP-induced apoplastic H2O2 but also cancels the subsequent immune responses, suggesting a pivotal role of AtPIP1;4 in apocytoplastic signal transduction in immunity pathways.
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Affiliation(s)
- Shan Tian
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaobing Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping Li
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongtao Ji
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Junyi Xie
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qinglei Qiu
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Dan Shen
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hansong Dong
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
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Mignolet-Spruyt L, Xu E, Idänheimo N, Hoeberichts FA, Mühlenbock P, Brosché M, Van Breusegem F, Kangasjärvi J. Spreading the news: subcellular and organellar reactive oxygen species production and signalling. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:3831-44. [PMID: 26976816 DOI: 10.1093/jxb/erw080] [Citation(s) in RCA: 231] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
As plants are sessile organisms that have to attune their physiology and morphology continuously to varying environmental challenges in order to survive and reproduce, they have evolved complex and integrated environment-cell, cell-cell, and cell-organelle signalling circuits that regulate and trigger the required adjustments (such as alteration of gene expression). Although reactive oxygen species (ROS) are essential components of this network, their pathways are not yet completely unravelled. In addition to the intrinsic chemical properties that define the array of interaction partners, mobility, and stability, ROS signalling specificity is obtained via the spatiotemporal control of production and scavenging at different organellar and subcellular locations (e.g. chloroplasts, mitochondria, peroxisomes, and apoplast). Furthermore, these cellular compartments may crosstalk to relay and further fine-tune the ROS message. Hence, plant cells might locally and systemically react upon environmental or developmental challenges by generating spatiotemporally controlled dosages of certain ROS types, each with specific chemical properties and interaction targets, that are influenced by interorganellar communication and by the subcellular location and distribution of the involved organelles, to trigger the suitable acclimation responses in association with other well-established cellular signalling components (e.g. reactive nitrogen species, phytohormones, and calcium ions). Further characterization of this comprehensive ROS signalling matrix may result in the identification of new targets and key regulators of ROS signalling, which might be excellent candidates for engineering or breeding stress-tolerant plants.
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Affiliation(s)
- Lorin Mignolet-Spruyt
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Enjun Xu
- Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, 00014 University of Helsinki, Finland
| | - Niina Idänheimo
- Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, 00014 University of Helsinki, Finland
| | - Frank A Hoeberichts
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Per Mühlenbock
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Mikael Brosché
- Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, 00014 University of Helsinki, Finland
| | - Frank Van Breusegem
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Jaakko Kangasjärvi
- Division of Plant Biology, Viikki Plant Science Centre, Department of Biosciences, 00014 University of Helsinki, Finland Distinguished Scientist Fellowship Program, College of Science, King Saud University, Riyadh, Saudi Arabia
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Ben Hamed-Laouti I, Arbelet-Bonnin D, De Bont L, Biligui B, Gakière B, Abdelly C, Ben Hamed K, Bouteau F. Comparison of NaCl-induced programmed cell death in the obligate halophyte Cakile maritima and the glycophyte Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 247:49-59. [PMID: 27095399 DOI: 10.1016/j.plantsci.2016.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 06/05/2023]
Abstract
Salinity represents one of the most important constraints that adversely affect plants growth and productivity. In this study, we aimed at determining possible differences between salt tolerant and salt sensitive species in early salt stress response. To this purpose, we subjected suspension-cultured cells from the halophyte Cakile maritima and the glycophyte Arabidopsis thaliana, two Brassicaceae, to salt stress and compared their behavior. In both species we could observe a time and dose dependent programmed cell death requiring an active metabolism, a dysfunction of mitochondria and caspase-like activation although C. maritima cells appeared less sensitive than A. thaliana cells. This capacity to mitigate salt stress could be due to a higher ascorbate pool that could allow C. maritima reducing the oxidative stress generated in response to NaCl. It further appeared that a higher number of C. maritima cultured cells when compared to A. thaliana could efficiently manage the Na(+) accumulation into the cytoplasm through non selective cation channels allowing also reducing the ROS generation and the subsequent cell death.
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Affiliation(s)
- Ibtissem Ben Hamed-Laouti
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France; Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, University of Carthage-Tunis, BP 901, 2050 Hammam Lif, Tunisia
| | - Delphine Arbelet-Bonnin
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France
| | - Linda De Bont
- Institute of Plant Sciences-Paris-Saclay (UMR 9213) Bât. 630, 91405 Orsay, France
| | - Bernadette Biligui
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France
| | - Bertrand Gakière
- Institute of Plant Sciences-Paris-Saclay (UMR 9213) Bât. 630, 91405 Orsay, France
| | - Chedly Abdelly
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, University of Carthage-Tunis, BP 901, 2050 Hammam Lif, Tunisia
| | - Karim Ben Hamed
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, University of Carthage-Tunis, BP 901, 2050 Hammam Lif, Tunisia
| | - François Bouteau
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France.
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42
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Thalineau E, Truong HN, Berger A, Fournier C, Boscari A, Wendehenne D, Jeandroz S. Cross-Regulation between N Metabolism and Nitric Oxide (NO) Signaling during Plant Immunity. FRONTIERS IN PLANT SCIENCE 2016; 7:472. [PMID: 27092169 PMCID: PMC4824785 DOI: 10.3389/fpls.2016.00472] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/24/2016] [Indexed: 05/07/2023]
Abstract
Plants are sessile organisms that have evolved a complex immune system which helps them cope with pathogen attacks. However, the capacity of a plant to mobilize different defense responses is strongly affected by its physiological status. Nitrogen (N) is a major nutrient that can play an important role in plant immunity by increasing or decreasing plant resistance to pathogens. Although no general rule can be drawn about the effect of N availability and quality on the fate of plant/pathogen interactions, plants' capacity to acquire, assimilate, allocate N, and maintain amino acid homeostasis appears to partly mediate the effects of N on plant defense. Nitric oxide (NO), one of the products of N metabolism, plays an important role in plant immunity signaling. NO is generated in part through Nitrate Reductase (NR), a key enzyme involved in nitrate assimilation, and its production depends on levels of nitrate/nitrite, NR substrate/product, as well as on L-arginine and polyamine levels. Cross-regulation between NO signaling and N supply/metabolism has been evidenced. NO production can be affected by N supply, and conversely NO appears to regulate nitrate transport and assimilation. Based on this knowledge, we hypothesized that N availability partly controls plant resistance to pathogens by controlling NO homeostasis. Using the Medicago truncatula/Aphanomyces euteiches pathosystem, we showed that NO homeostasis is important for resistance to this oomycete and that N availability impacts NO homeostasis by affecting S-nitrosothiol (SNO) levels and S-nitrosoglutathione reductase activity in roots. These results could therefore explain the increased resistance we noted in N-deprived as compared to N-replete M. truncatula seedlings. They open onto new perspectives for the studies of N/plant defense interactions.
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Affiliation(s)
- Elise Thalineau
- Agroécologie, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-ComtéDijon, France
| | - Hoai-Nam Truong
- Agroécologie, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-ComtéDijon, France
| | - Antoine Berger
- Institut Sophia Agrobiotech, UMR, INRA, Université Nice Sophia Antipolis, CNRSSophia Antipolis, France
| | - Carine Fournier
- Agroécologie, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-ComtéDijon, France
| | - Alexandre Boscari
- Institut Sophia Agrobiotech, UMR, INRA, Université Nice Sophia Antipolis, CNRSSophia Antipolis, France
| | - David Wendehenne
- Agroécologie, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-ComtéDijon, France
| | - Sylvain Jeandroz
- Agroécologie, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-ComtéDijon, France
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Delorme-Hinoux V, Bangash SAK, Meyer AJ, Reichheld JP. Nuclear thiol redox systems in plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 243:84-95. [PMID: 26795153 DOI: 10.1016/j.plantsci.2015.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 12/03/2015] [Accepted: 12/07/2015] [Indexed: 05/18/2023]
Abstract
Thiol-disulfide redox regulation is essential for many cellular functions in plants. It has major roles in defense mechanisms, maintains the redox status of the cell and plays structural, with regulatory roles for many proteins. Although thiol-based redox regulation has been extensively studied in subcellular organelles such as chloroplasts, it has been much less studied in the nucleus. Thiol-disulfide redox regulation is dependent on the conserved redox proteins, glutathione/glutaredoxin (GRX) and thioredoxin (TRX) systems. We first focus on the functions of glutathione in the nucleus and discuss recent data concerning accumulation of glutathione in the nucleus. We also provide evidence that glutathione reduction is potentially active in the nucleus. Recent data suggests that the nucleus is enriched in specific GRX and TRX isoforms. We discuss the biochemical and molecular characteristics of these isoforms and focus on genetic evidences for their potential nuclear functions. Finally, we make an overview of the different thiol-based redox regulated proteins in the nucleus. These proteins are involved in various pathways including transcriptional regulation, metabolism and signaling.
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Affiliation(s)
- Valérie Delorme-Hinoux
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France; Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France.
| | - Sajid A K Bangash
- INRES-Chemical Signalling, University of Bonn, Friedrich-Ebert-Allee 144, 53113 Bonn, Germany
| | - Andreas J Meyer
- INRES-Chemical Signalling, University of Bonn, Friedrich-Ebert-Allee 144, 53113 Bonn, Germany
| | - Jean-Philippe Reichheld
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France; Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France.
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Mechanisms of Superoxide Generation and Signaling in Cytochrome bc Complexes. ADVANCES IN PHOTOSYNTHESIS AND RESPIRATION 2016. [DOI: 10.1007/978-94-017-7481-9_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Singh R, Singh S, Parihar P, Mishra RK, Tripathi DK, Singh VP, Chauhan DK, Prasad SM. Reactive Oxygen Species (ROS): Beneficial Companions of Plants' Developmental Processes. FRONTIERS IN PLANT SCIENCE 2016; 7:1299. [PMID: 27729914 PMCID: PMC5037240 DOI: 10.3389/fpls.2016.01299] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 08/15/2016] [Indexed: 05/20/2023]
Abstract
Reactive oxygen species (ROS) are generated inevitably in the redox reactions of plants, including respiration and photosynthesis. In earlier studies, ROS were considered as toxic by-products of aerobic pathways of the metabolism. But in recent years, concept about ROS has changed because they also participate in developmental processes of plants by acting as signaling molecules. In plants, ROS regulate many developmental processes such as cell proliferation and differentiation, programmed cell death, seed germination, gravitropism, root hair growth and pollen tube development, senescence, etc. Despite much progress, a comprehensive update of advances in the understanding of the mechanisms evoked by ROS that mediate in cell proliferation and development are fragmentry and the matter of ROS perception and the signaling cascade remains open. Therefore, keeping in view the above facts, an attempt has been made in this article to summarize the recent findings regarding updates made in the regulatory action of ROS at various plant developmental stages, which are still not well-known.
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Affiliation(s)
- Rachana Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Samiksha Singh
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Parul Parihar
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Rohit K. Mishra
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Durgesh K. Tripathi
- DD Pant Interdisciplinary Research Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Vijay P. Singh
- Government Ramanuj Pratap Singhdev Post Graduate CollegeBaikunthpur, India
- *Correspondence: Vijay P. Singh, Sheo M. Prasad,
| | - Devendra K. Chauhan
- DD Pant Interdisciplinary Research Laboratory, Department of Botany, University of AllahabadAllahabad, India
| | - Sheo M. Prasad
- Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of AllahabadAllahabad, India
- *Correspondence: Vijay P. Singh, Sheo M. Prasad,
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Ghuge SA, Carucci A, Rodrigues-Pousada RA, Tisi A, Franchi S, Tavladoraki P, Angelini R, Cona A. The Apoplastic Copper AMINE OXIDASE1 Mediates Jasmonic Acid-Induced Protoxylem Differentiation in Arabidopsis Roots. PLANT PHYSIOLOGY 2015; 168:690-707. [PMID: 25883242 PMCID: PMC4453780 DOI: 10.1104/pp.15.00121] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/15/2015] [Indexed: 05/03/2023]
Abstract
Polyamines are involved in key developmental processes and stress responses. Copper amine oxidases oxidize the polyamine putrescine (Put), producing an aldehyde, ammonia, and hydrogen peroxide (H2O2). The Arabidopsis (Arabidopsis thaliana) amine oxidase gene At4g14940 (AtAO1) encodes an apoplastic copper amine oxidase expressed at the early stages of vascular tissue differentiation in roots. Here, its role in root development and xylem differentiation was explored by pharmacological and forward/reverse genetic approaches. Analysis of the AtAO1 expression pattern in roots by a promoter::green fluorescent protein-β-glucuronidase fusion revealed strong gene expression in the protoxylem at the transition, elongation, and maturation zones. Methyl jasmonate (MeJA) induced AtAO1 gene expression in vascular tissues, especially at the transition and elongation zones. Early protoxylem differentiation was observed upon MeJA treatment along with Put level decrease and H2O2 accumulation in wild-type roots, whereas Atao1 loss-of-function mutants were unresponsive to the hormone. The H2O2 scavenger N,N(1)-dimethylthiourea reversed the MeJA-induced early protoxylem differentiation in wild-type seedlings. Likewise, Put, which had no effect on Atao1 mutants, induced early protoxylem differentiation in the wild type, this event being counteracted by N,N(1)-dimethylthiourea treatment. Consistently, AtAO1-overexpressing plants showed lower Put levels and early protoxylem differentiation concurrent with H2O2 accumulation in the root zone where the first protoxylem cells with fully developed secondary wall thickenings are found. These results show that the H2O2 produced via AtAO1-driven Put oxidation plays a role in MeJA signaling leading to early protoxylem differentiation in root.
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Affiliation(s)
- Sandip A Ghuge
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Andrea Carucci
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Renato A Rodrigues-Pousada
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Alessandra Tisi
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Stefano Franchi
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Paraskevi Tavladoraki
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Riccardo Angelini
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
| | - Alessandra Cona
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Rome, Italy (S.A.G., A.Ca., A.T., S.F., P.T., R.A., A.Co.);Department of Life, Health, and Environmental Sciences, Università dell'Aquila, 67100 L'Aquila, Italy (R.A.R.-P.); andIstituto Nazionale Biostrutture e Biosistemi, 00136 Rome, Italy (P.T., R.A., A.Co.)
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Li Z, Yang H, Wu X, Guo K, Li J. Some aspects of salinity responses in peppermint (Mentha × piperita L.) to NaCl treatment. PROTOPLASMA 2015; 252:885-899. [PMID: 25388000 DOI: 10.1007/s00709-014-0728-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 10/31/2014] [Indexed: 06/04/2023]
Abstract
Salinity is a major stress that adversely affects plant growth and crop production. Understanding the cellular responses and molecular mechanisms by which plants perceive and adopt salinity stress is of fundamental importance. In this work, some of the cellular signaling events including cell death, reactive oxygen species (ROS) generation, and the behaviors of organelles were analyzed in a salt-tolerant species (Keyuan-1) of peppermint (Mentha × piperita L.) under NaCl treatment. Our results showed that 200 mM NaCl treatment elicited a distinct progress of cell death with chromatin condensation and caspase-3-like activation and a dramatic burst of ROS which was required for the execution of cell death. The major ROS accumulation occurred in the mitochondria and chloroplasts, which were the sources of ROS production under NaCl stress. Moreover, mitochondrial activity and photosynthetic capacity also exhibited the obvious decrease in the ROS-dependent manner under 200 mM NaCl stress. Furthermore, the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), and dehydroascorbate reductase (DHAR) as well as the contents of ascorbate and glutathione changed in the concentration-dependent manner under NaCl stress. Altogether, our data showed the execution of programmed cell death (PCD), the ROS dynamics, and the behaviors of organelles especially mitochondria and chloroplasts in the cellular responses of peppermint to NaCl stress which can be used for the tolerance screening, and contributed to the understanding of the cellular responses and molecular mechanisms of peppermint to salinity stress, providing the theoretic basis for the further development and utilization of peppermint in saline areas.
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Affiliation(s)
- Zhe Li
- Biotechnology Center of Shandong Academy of Sciences, Jinan, 250014, China,
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Li L, Hu L, Han LP, Ji H, Zhu Y, Wang X, Ge J, Xu M, Shen D, Dong H. Expression of turtle riboflavin-binding protein represses mitochondrial electron transport gene expression and promotes flowering in Arabidopsis. BMC PLANT BIOLOGY 2014; 14:381. [PMID: 25547226 PMCID: PMC4310184 DOI: 10.1186/s12870-014-0381-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 12/11/2014] [Indexed: 05/12/2023]
Abstract
BACKGROUND Recently we showed that de novo expression of a turtle riboflavin-binding protein (RfBP) in transgenic Arabidopsis increased H2O2 concentrations inside leaf cells, enhanced the expression of floral regulatory gene FD and floral meristem identity gene AP1 at the shoot apex, and induced early flowering. Here we report that RfBP-induced H2O2 presumably results from electron leakage at the mitochondrial electron transport chain (METC) and this source of H2O2 contributes to the early flowering phenotype. RESULTS While enhanced expression of FD and AP1 at the shoot apex was correlated with early flowering, the foliar expression of 13 of 19 METC genes was repressed in RfBP-expressing (RfBP+) plants. Inside RfBP+ leaf cells, cytosolic H2O2 concentrations were increased possibly through electron leakage because similar responses were also induced by a known inducer of electron leakage from METC. Early flowering no longer occurred when the repression on METC genes was eliminated by RfBP gene silencing, which restored RfBP+ to wild type in levels of FD and AP1 expression, H2O2, and flavins. Flowering was delayed by the external riboflavin application, which brought gene expression and flavins back to the steady-state levels but only caused 55% reduction of H2O2 concentrations in RfBP+ plants. RfBP-repressed METC gene expression remedied the cytosolic H2O2 diminution by genetic disruption of transcription factor NFXLl and compensated for compromises in FD and AP1 expression and flowering time. By contrast, RfBP resembled a peroxisomal catalase mutation, which augments the cytosolic H2O2, to enhance FD and AP1 expression and induce early flowering. CONCLUSIONS RfBP-repressed METC gene expression potentially causes electron leakage as one of cellular sources for the generation of H2O2 with the promoting effect on flowering. The repressive effect on METC gene expression is not the only way by which RfBP induces H2O2 and currently unappreciated factors may also function under RfBP+ background.
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Affiliation(s)
- Liang Li
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Li Hu
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Li-Ping Han
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Hongtao Ji
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Yueyue Zhu
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Xiaobing Wang
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Jun Ge
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Manyu Xu
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Dan Shen
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
| | - Hansong Dong
- Department of Plant Pathology, Nanjing Agricultural University and State Ministry of Education Key Laboratory of Integrated Management of Crop Pathogens and Insect Pests, Nanjing, 210095 China
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Vaahtera L, Brosché M, Wrzaczek M, Kangasjärvi J. Specificity in ROS signaling and transcript signatures. Antioxid Redox Signal 2014; 21:1422-41. [PMID: 24180661 PMCID: PMC4158988 DOI: 10.1089/ars.2013.5662] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
SIGNIFICANCE Reactive oxygen species (ROS), important signaling molecules in plants, are involved in developmental control and stress adaptation. ROS production can trigger broad transcriptional changes; however, it is not clear how specificity in transcriptional regulation is achieved. RECENT ADVANCES A large collection of public transcriptome data from the model plant Arabidopsis thaliana is available for analysis. These data can be used for the analysis of biological processes that are associated with ROS signaling and for the identification of suitable transcriptional indicators. Several online tools, such as Genevestigator and Expression Angler, have simplified the task to analyze, interpret, and visualize this wealth of data. CRITICAL ISSUES The analysis of the exact transcriptional responses to ROS requires the production of specific ROS in distinct subcellular compartments with precise timing, which is experimentally difficult. Analyses are further complicated by the effect of ROS production in one subcellular location on the ROS accumulation in other compartments. In addition, even subtle differences in the method of ROS production or treatment can lead to significantly different outcomes when various stimuli are compared. FUTURE DIRECTIONS Due to the difficulty of inducing ROS production specifically with regard to ROS type, subcellular localization, and timing, we propose that the concept of a "ROS marker gene" should be re-evaluated. We suggest guidelines for the analysis of transcriptional data in ROS signaling. The use of "ROS signatures," which consist of a set of genes that together can show characteristic and indicative responses, should be preferred over the use of individual marker genes.
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Affiliation(s)
- Lauri Vaahtera
- 1 Division of Plant Biology, Department of Biosciences, University of Helsinki , Helsinki, Finland
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Jaiswal DK, Ray D, Choudhary MK, Subba P, Kumar A, Verma J, Kumar R, Datta A, Chakraborty S, Chakraborty N. Comparative proteomics of dehydration response in the rice nucleus: new insights into the molecular basis of genotype-specific adaptation. Proteomics 2014; 13:3478-97. [PMID: 24133045 DOI: 10.1002/pmic.201300284] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/10/2013] [Accepted: 09/23/2013] [Indexed: 01/04/2023]
Abstract
Dehydration is the most crucial environmental factor that considerably reduces the crop harvest index, and thus has become a concern for global agriculture. To better understand the role of nuclear proteins in water-deficit condition, a nuclear proteome was developed from a dehydration-sensitive rice cultivar IR-64 followed by its comparison with that of a dehydration-tolerant c.v. Rasi. The 2DE protein profiling of c.v. IR-64 coupled with MS/MS analysis led to the identification of 93 dehydration-responsive proteins (DRPs). Among those identified proteins, 78 were predicted to be destined to the nucleus, accounting for more than 80% of the dataset. While the detected number of protein spots in c.v. IR-64 was higher when compared with that of Rasi, the number of DRPs was found to be less. Fifty-seven percent of the DRPs were found to be common to both sensitive and tolerant cultivars, indicating significant differences between the two nuclear proteomes. Further, we constructed a functional association network of the DRPs of c.v. IR-64, which suggests that a significant number of the proteins are capable of interacting with each other. The combination of nuclear proteome and interactome analyses would elucidate stress-responsive signaling and the molecular basis of dehydration tolerance in plants.
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