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Dmitrieva VA, Tyutereva EV, Voitsekhovskaja OV. What can reactive oxygen species (ROS) tell us about the action mechanism of herbicides and other phytotoxins? Free Radic Biol Med 2024; 220:92-110. [PMID: 38663829 DOI: 10.1016/j.freeradbiomed.2024.04.233] [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] [Received: 03/03/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/09/2024]
Abstract
Reactive oxygen species (ROS) are formed in plant cells continuously. When ROS production exceeds the antioxidant capacity of the cells, oxidative stress develops which causes damage of cell components and may even lead to the induction of programmed cell death (PCD). The levels of ROS production increase upon abiotic stress, but also during pathogen attack in response to elicitors, and upon application of toxic compounds such as synthetic herbicides or natural phytotoxins. The commercial value of many synthetic herbicides is based on weed death as result of oxidative stress, and for a number of them, the site and the mechanism of ROS production have been characterized. This review summarizes the current knowledge on ROS production in plants subjected to different groups of synthetic herbicides and natural phytotoxins. We suggest that the use of ROS-specific fluorescent probes and of ROS-specific marker genes can provide important information on the mechanism of action of these toxins. Furthermore, we propose that, apart from oxidative damage, elicitation of ROS-induced PCD is emerging as one of the important processes underlying the action of herbicides and phytotoxins.
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Affiliation(s)
- Valeria A Dmitrieva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia; Laboratory of Phytotoxicology and Biotechnology, All-Russian Institute of Plant Protection, Saint Petersburg, 196608, Russia
| | - Elena V Tyutereva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia
| | - Olga V Voitsekhovskaja
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia.
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2
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Valitova J, Renkova A, Beckett R, Minibayeva F. Stigmasterol: An Enigmatic Plant Stress Sterol with Versatile Functions. Int J Mol Sci 2024; 25:8122. [PMID: 39125690 PMCID: PMC11311414 DOI: 10.3390/ijms25158122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/05/2024] [Accepted: 07/22/2024] [Indexed: 08/12/2024] Open
Abstract
Sterols play important structural and regulatory roles in numerous intracellular processes. Unlike animals, plants contain a distinctive and diverse variety of sterols. Recently, information has emerged showing that stigmasterol is a "stress sterol". Stigmasterol is synthesized via the mevalonate biosynthesis pathway and has structural similarity to β-sitosterol but differs in the presence of a trans-oriented double bond in the side chain. In plants, the accumulation of stigmasterol has been observed in response to various stresses. However, the precise ways that stigmasterol is involved in the stress responses of plants remain unclear. This comprehensive review provides an update on the biology of stigmasterol, particularly the physicochemical properties of this ethylsterol, its biosynthesis, and its occurrence in higher plants and extremophilic organisms, e.g., mosses and lichens. Special emphasis is given to the evolutionary aspects of stigmasterol biosynthesis, particularly the variations in the gene structure of C22-sterol desaturase, which catalyzes the formation of stigmasterol from β-sitosterol, in a diversity of evolutionarily distant organisms. The roles of stigmasterol in the tolerance of plants to hostile environments and the prospects for its biomedical applications are also discussed. Taken together, the available data suggest that stigmasterol plays important roles in plant metabolism, although in some aspects, it remains an enigmatic compound.
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Affiliation(s)
- Julia Valitova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, P.O. Box 261, Kazan 420111, Russia; (J.V.); (A.R.)
| | - Albina Renkova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, P.O. Box 261, Kazan 420111, Russia; (J.V.); (A.R.)
| | - Richard Beckett
- School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa;
| | - Farida Minibayeva
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, P.O. Box 261, Kazan 420111, Russia; (J.V.); (A.R.)
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3
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Kong Q, Zhu Z, Xu Q, Yu F, Wang Q, Gu Z, Xia K, Jiang D, Kong H. Nature-Inspired Thylakoid-Based Photosynthetic Nanoarchitectures for Biomedical Applications. SMALL METHODS 2024; 8:e2301143. [PMID: 38040986 DOI: 10.1002/smtd.202301143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/22/2023] [Indexed: 12/03/2023]
Abstract
"Drawing inspiration from nature" offers a wealth of creative possibilities for designing cutting-edge materials with improved properties and performance. Nature-inspired thylakoid-based nanoarchitectures, seamlessly integrate the inherent structures and functions of natural components with the diverse and controllable characteristics of nanotechnology. These innovative biomaterials have garnered significant attention for their potential in various biomedical applications. Thylakoids possess fundamental traits such as light harvesting, oxygen evolution, and photosynthesis. Through the integration of artificially fabricated nanostructures with distinct physical and chemical properties, novel photosynthetic nanoarchitectures can be catalytically generated, offering versatile functionalities for diverse biomedical applications. In this article, an overview of the properties and extraction methods of thylakoids are provided. Additionally, the recent advancements in the design, preparation, functions, and biomedical applications of a range of thylakoid-based photosynthetic nanoarchitectures are reviewed. Finally, the foreseeable challenges and future prospects in this field is discussed.
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Affiliation(s)
- Qunshou Kong
- Department of Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
| | - Zhimin Zhu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qin Xu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Feng Yu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Qisheng Wang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Zhihua Gu
- Shanghai Pudong TCM Hospital, Shanghai, 201205, China
| | - Kai Xia
- Shanghai Frontier Innovation Research Institute, Shanghai, 201108, China
- Xiangfu Laboratory, Jiashan, 314102, China
- Shanghai Stomatological Hospital, Fudan University, Shanghai, 200031, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan, 430022, China
- Key Laboratory of Biological Targeted Therapy, The Ministry of Education, Wuhan, 430022, China
| | - Huating Kong
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
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Sun K, Pan YT, Jiang HJ, Xu JY, Ma CY, Zhou J, Liu Y, Shabala S, Zhang W, Dai CC. Root endophyte-mediated alteration in plant H2O2 homeostasis regulates symbiosis outcome and reshapes the rhizosphere microbiota. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:3153-3170. [PMID: 38394357 DOI: 10.1093/jxb/erae069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/22/2024] [Indexed: 02/25/2024]
Abstract
Endophytic symbioses between plants and fungi are a dominant feature of many terrestrial ecosystems, yet little is known about the signaling that defines these symbiotic associations. Hydrogen peroxide (H2O2) is recognized as a key signal mediating the plant adaptive response to both biotic and abiotic stresses. However, the role of H2O2 in plant-fungal symbiosis remains elusive. Using a combination of physiological analysis, plant and fungal deletion mutants, and comparative transcriptomics, we reported that various environmental conditions differentially affect the interaction between Arabidopsis and the root endophyte Phomopsis liquidambaris, and link this process to alterations in H2O2 levels and H2O2 fluxes across root tips. We found that enhanced H2O2 efflux leading to a moderate increase in H2O2 levels at the plant-fungal interface is required for maintaining plant-fungal symbiosis. Disturbance of plant H2O2 homeostasis compromises the symbiotic ability of plant roots. Moreover, the fungus-regulated H2O2 dynamics modulate the rhizosphere microbiome by selectively enriching for the phylum Cyanobacteria, with strong antioxidant defenses. Our results demonstrated that the regulation of H2O2 dynamics at the plant-fungal interface affects the symbiotic outcome in response to external conditions and highlight the importance of the root endophyte in reshaping the rhizosphere microbiota.
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Affiliation(s)
- Kai Sun
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Yi-Tong Pan
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Hui-Jun Jiang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Jia-Yan Xu
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Chen-Yu Ma
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Jiayu Zhou
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - Yunqi Liu
- Zhongguancun Xuyue Non-invasive Micro-test Technology Industrial Alliance, Beijing 10080, China
| | - Sergey Shabala
- School of Biological Science, University of Western Australia, Crawley, WA 60909, Australia
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, China
| | - Wei Zhang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
| | - Chuan-Chao Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Jiangsu Province, China
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Li X, Chen L, Zeng X, Wu K, Huang J, Liao M, Xi Y, Zhu G, Zeng X, Hou X, Zhang Z, Peng X. Wounding induces a peroxisomal H 2 O 2 decrease via glycolate oxidase-catalase switch dependent on glutamate receptor-like channel-supported Ca 2+ signaling in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:1325-1341. [PMID: 37596913 DOI: 10.1111/tpj.16427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/26/2023] [Accepted: 08/04/2023] [Indexed: 08/21/2023]
Abstract
Sensing of environmental challenges, such as mechanical injury, by a single plant tissue results in the activation of systemic signaling, which attunes the plant's physiology and morphology for better survival and reproduction. As key signals, both calcium ions (Ca2+ ) and hydrogen peroxide (H2 O2 ) interplay with each other to mediate plant systemic signaling. However, the mechanisms underlying Ca2+ -H2 O2 crosstalk are not fully revealed. Our previous study showed that the interaction between glycolate oxidase and catalase, key enzymes of photorespiration, serves as a molecular switch (GC switch) to dynamically modulate photorespiratory H2 O2 fluctuations via metabolic channeling. In this study, we further demonstrate that local wounding induces a rapid shift of the GC switch to a more interactive state in systemic leaves, resulting in a sharp decrease in peroxisomal H2 O2 levels, in contrast to a simultaneous outburst of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived apoplastic H2 O2 . Moreover, the systemic response of the two processes depends on the transmission of Ca2+ signaling, mediated by glutamate-receptor-like Ca2+ channels 3.3 and 3.6. Mechanistically, by direct binding and/or indirect mediation by some potential biochemical sensors, peroxisomal Ca2+ regulates the GC switch states in situ, leading to changes in H2 O2 levels. Our findings provide new insights into the functions of photorespiratory H2 O2 in plant systemic acclimation and an optimized systemic H2 O2 signaling via spatiotemporal interplay between the GC switch and NADPH oxidases.
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Linru Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Xiaoyue Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Kaixin Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Jiayu Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Mengmeng Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Yue Xi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Guohui Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Xiuying Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Xuewen Hou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Zhisheng Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Xinxiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
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6
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Liu Y, Ge L, Tang H, Zheng J, Hu J, Wang J, Yang X, Zhang R, Wang X, Li X, Zhang Y, Shi Q. cGMP functions as an important messenger involved in SlSAMS1-regulated salt stress tolerance in tomato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 204:108097. [PMID: 37864930 DOI: 10.1016/j.plaphy.2023.108097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 10/23/2023]
Abstract
Salt stress adversely affects the growth, development, and yield of tomato (Solanum lycopersicum). SAM Synthetase (SAMS), which is responsible for the biosynthesis of S-adenosylmethionine (SAM, a precursor of polyamine biosynthesis), participates in plant response to abiotic stress. However, the regulatory mechanism of SAMS-mediated salt stress tolerance remains elusive. In this study, we characterized a SAMS homologue SlSAMS1 in tomato. We found that SlSAMS1 is highly expressed in tomato roots, and its expression can be induced by salt stress. Crucially, overexpression of SlSAMS1 in tomato enhances salt stress tolerance. Through metabolomic profiling, we identified some differentially accumulated metabolites, especially, a secondary messenger guanosine 3',5'-cyclic monophosphate (cGMP) which may play a key role in SlSAMS1-regulated salt tolerance. A series of physiological and biochemical data suggest that cGMP alleviates salt stress-induced growth inhibition, and potentially acts downstream of the polyamine-nitric oxide (PA-NO) signaling pathway to trigger H2O2 signaling in response to salt stress. Taken together, the study reveals that SlSAMS1 regulates tomato salt tolerance via the PA-NO-cGMP-H2O2 signal module. Our findings elucidate the regulatory pathway of SlSAMS1-induced plant response to salt stress and indicate a pivotal role of cGMP in salt tolerance.
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Affiliation(s)
- Yue Liu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Lianjing Ge
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Huimeng Tang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Jinhui Zheng
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Jinxiang Hu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Jingru Wang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xiaoyu Yang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Ruimin Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xiaoyun Wang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Xiuming Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Yan Zhang
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
| | - Qinghua Shi
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
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Tournaire MD, Scharff LB, Kramer M, Goss T, Vuorijoki L, Rodriguez‐Heredia M, Wilson S, Kruse I, Ruban A, Balk L. J, Hase T, Jensen P, Hanke GT. Ferredoxin C2 is required for chlorophyll biosynthesis and accumulation of photosynthetic antennae in Arabidopsis. PLANT, CELL & ENVIRONMENT 2023; 46:3287-3304. [PMID: 37427830 PMCID: PMC10947542 DOI: 10.1111/pce.14667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/09/2023] [Accepted: 06/22/2023] [Indexed: 07/11/2023]
Abstract
Ferredoxins (Fd) are small iron-sulphur proteins, with sub-types that have evolved for specific redox functions. Ferredoxin C2 (FdC2) proteins are essential Fd homologues conserved in all photosynthetic organisms and a number of different FdC2 functions have been proposed in angiosperms. Here we use RNAi silencing in Arabidopsis thaliana to generate a viable fdC2 mutant line with near-depleted FdC2 protein levels. Mutant leaves have ~50% less chlorophyll a and b, and chloroplasts have poorly developed thylakoid membrane structure. Transcriptomics indicates upregulation of genes involved in stress responses. Although fdC2 antisense plants show increased damage at photosystem II (PSII) when exposed to high light, PSII recovers at the same rate as wild type in the dark. This contradicts literature proposing that FdC2 regulates translation of the D1 subunit of PSII, by binding to psbA transcript. Measurement of chlorophyll biosynthesis intermediates revealed a build-up of Mg-protoporphyrin IX, the substrate of the aerobic cyclase. We localise FdC2 to the inner chloroplast envelope and show that the FdC2 RNAi line has a disproportionately lower protein abundance of antennae proteins, which are nuclear-encoded and must be refolded at the envelope after import.
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Affiliation(s)
| | - Lars B. Scharff
- Department of Plant and Environmental Sciences, Copenhagen Plant Science CentreUniversity of CopenhagenFrederiksbergDenmark
| | - Manuela Kramer
- School of Biological and Behavioural sciencesQueen Mary University of LondonLondonUK
| | - Tatjana Goss
- Department of Plant PhysiologyOsnabrück UniversityOsnabrückGermany
| | | | | | - Sam Wilson
- School of Biological and Behavioural sciencesQueen Mary University of LondonLondonUK
| | - Inga Kruse
- Department of Plant PhysiologyOsnabrück UniversityOsnabrückGermany
| | - Alexander Ruban
- School of Biological and Behavioural sciencesQueen Mary University of LondonLondonUK
| | | | - Toshiharu Hase
- Institute for Protein ResearchOsaka UniversityOsakaJapan
| | - Poul‐Erik Jensen
- Department of Food ScienceUniversity of CopenhagenFrederiksbergDenmark
| | - Guy T. Hanke
- School of Biological and Behavioural sciencesQueen Mary University of LondonLondonUK
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Sevilla F, Martí MC, De Brasi-Velasco S, Jiménez A. Redox regulation, thioredoxins, and glutaredoxins in retrograde signalling and gene transcription. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:5955-5969. [PMID: 37453076 PMCID: PMC10575703 DOI: 10.1093/jxb/erad270] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Integration of reactive oxygen species (ROS)-mediated signal transduction pathways via redox sensors and the thiol-dependent signalling network is of increasing interest in cell biology for their implications in plant growth and productivity. Redox regulation is an important point of control in protein structure, interactions, cellular location, and function, with thioredoxins (TRXs) and glutaredoxins (GRXs) being key players in the maintenance of cellular redox homeostasis. The crosstalk between second messengers, ROS, thiol redox signalling, and redox homeostasis-related genes controls almost every aspect of plant development and stress response. We review the emerging roles of TRXs and GRXs in redox-regulated processes interacting with other cell signalling systems such as organellar retrograde communication and gene expression, especially in plants during their development and under stressful environments. This approach will cast light on the specific role of these proteins as redox signalling components, and their importance in different developmental processes during abiotic stress.
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Affiliation(s)
- Francisca Sevilla
- Abiotic Stress, Production and Quality Laboratory, Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia, Spain
| | - Maria Carmen Martí
- Abiotic Stress, Production and Quality Laboratory, Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia, Spain
| | - Sabrina De Brasi-Velasco
- Abiotic Stress, Production and Quality Laboratory, Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia, Spain
| | - Ana Jiménez
- Abiotic Stress, Production and Quality Laboratory, Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia, Spain
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9
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Rachowka J, Anielska-Mazur A, Bucholc M, Stephenson K, Kulik A. SnRK2.10 kinase differentially modulates expression of hub WRKY transcription factors genes under salinity and oxidative stress in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1135240. [PMID: 37621885 PMCID: PMC10445769 DOI: 10.3389/fpls.2023.1135240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 05/30/2023] [Indexed: 08/26/2023]
Abstract
In nature, all living organisms must continuously sense their surroundings and react to the occurring changes. In the cell, the information about these changes is transmitted to all cellular compartments, including the nucleus, by multiple phosphorylation cascades. Sucrose Non-Fermenting 1 Related Protein Kinases (SnRK2s) are plant-specific enzymes widely distributed across the plant kingdom and key players controlling abscisic acid (ABA)-dependent and ABA-independent signaling pathways in the plant response to osmotic stress and salinity. The main deleterious effects of salinity comprise water deficiency stress, disturbances in ion balance, and the accompanying appearance of oxidative stress. The reactive oxygen species (ROS) generated at the early stages of salt stress are involved in triggering intracellular signaling required for the fast stress response and modulation of gene expression. Here we established in Arabidopsis thaliana that salt stress or induction of ROS accumulation by treatment of plants with H2O2 or methyl viologen (MV) induces the expression of several genes encoding transcription factors (TFs) from the WRKY DNA-Binding Protein (WRKY) family. Their induction by salinity was dependent on SnRK2.10, an ABA non-activated kinase, as it was strongly reduced in snrk2.10 mutants. The effect of ROS was clearly dependent on their source. Following the H2O2 treatment, SnRK2.10 was activated in wild-type (wt) plants and the induction of the WRKY TFs expression was only moderate and was enhanced in snrk2.10 lines. In contrast, MV did not activate SnRK2.10 and the WRKY induction was very strong and was similar in wt and snrk2.10 plants. A bioinformatic analysis indicated that the WRKY33, WRKY40, WRKY46, and WRKY75 transcription factors have a similar target range comprising numerous stress-responsive protein kinases. Our results indicate that the stress-related functioning of SnRK2.10 is fine-tuned by the source and intracellular distribution of ROS and the co-occurrence of other stress factors.
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Affiliation(s)
| | | | | | | | - Anna Kulik
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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10
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Cuypers A, Vanbuel I, Iven V, Kunnen K, Vandionant S, Huybrechts M, Hendrix S. Cadmium-induced oxidative stress responses and acclimation in plants require fine-tuning of redox biology at subcellular level. Free Radic Biol Med 2023; 199:81-96. [PMID: 36775109 DOI: 10.1016/j.freeradbiomed.2023.02.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
Cadmium (Cd) is one of the most toxic compounds released into our environment and is harmful to human health, urging the need to remediate Cd-polluted soils. To this end, it is important to increase our insight into the molecular mechanisms underlying Cd stress responses in plants, ultimately leading to acclimation, and to develop novel strategies for economic validation of these soils. Albeit its non-redox-active nature, Cd causes a cellular oxidative challenge, which is a crucial determinant in the onset of diverse signalling cascades required for long-term acclimation and survival of Cd-exposed plants. Although it is well known that Cd affects reactive oxygen species (ROS) production and scavenging, the contribution of individual organelles to Cd-induced oxidative stress responses is less well studied. Here, we provide an overview of the current information on Cd-induced organellar responses with special attention to redox biology. We propose that an integration of organellar ROS signals with other signalling pathways is essential to finetune plant acclimation to Cd stress.
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Affiliation(s)
- Ann Cuypers
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium.
| | - Isabeau Vanbuel
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
| | - Verena Iven
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
| | - Kris Kunnen
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
| | - Stéphanie Vandionant
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
| | - Michiel Huybrechts
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
| | - Sophie Hendrix
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, B-3590, Diepenbeek, Belgium
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11
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Lukan T, Županič A, Mahkovec Povalej T, Brunkard JO, Kmetič M, Juteršek M, Baebler Š, Gruden K. Chloroplast redox state changes mark cell-to-cell signaling in the hypersensitive response. THE NEW PHYTOLOGIST 2023; 237:548-562. [PMID: 35946378 PMCID: PMC9875368 DOI: 10.1111/nph.18425] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/26/2022] [Indexed: 05/27/2023]
Abstract
Hypersensitive response (HR)-conferred resistance is associated with induction of programmed cell death and pathogen spread restriction in its proximity. The exact role of chloroplastic reactive oxygen species and its link with salicylic acid (SA) signaling in HR remain unexplained. To unravel this, we performed a detailed spatiotemporal analysis of chloroplast redox response in palisade mesophyll and upper epidermis to potato virus Y (PVY) infection in a resistant potato genotype and its transgenic counterpart with impaired SA accumulation and compromised resistance. Besides the cells close to the cell death zone, we detected individual cells with oxidized chloroplasts further from the cell death zone. These are rare in SA-deficient plants, suggesting their role in signaling for resistance. We confirmed that chloroplast redox changes play important roles in signaling for resistance, as blocking chloroplast redox changes affected spatial responses at the transcriptional level. Through spatiotemporal study of stromule induction after PVY infection, we show that stromules are induced by cell death and also as a response to PVY multiplication at the front of infection. Overall induction of stromules is attenuated in SA-deficient plants.
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Affiliation(s)
- Tjaša Lukan
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
| | - Anže Županič
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
| | | | - Jacob O. Brunkard
- Laboratory of GeneticsUniversity of Wisconsin – MadisonMadisonWI53706USA
| | - Mirjam Kmetič
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
| | - Mojca Juteršek
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
- Jožef Stefan International Postgraduate SchoolJamova 391000LjubljanaSlovenia
| | - Špela Baebler
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
| | - Kristina Gruden
- National Institute of BiologyVečna pot 1111000LjubljanaSlovenia
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12
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Polyamine Oxidase-Generated Reactive Oxygen Species in Plant Development and Adaptation: The Polyamine Oxidase-NADPH Oxidase Nexus. Antioxidants (Basel) 2022; 11:antiox11122488. [PMID: 36552696 PMCID: PMC9774701 DOI: 10.3390/antiox11122488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Metabolism and regulation of cellular polyamine levels are crucial for living cells to maintain their homeostasis and function. Polyamine oxidases (PAOs) terminally catabolize polyamines or catalyse the back-conversion reactions when spermine is converted to spermidine and Spd to putrescine. Hydrogen peroxide (H2O2) is a by-product of both the catabolic and back-conversion processes. Pharmacological and genetic approaches have started to uncover the roles of PAO-generated H2O2 in various plant developmental and adaptation processes such as cell differentiation, senescence, programmed cell death, and abiotic and biotic stress responses. Many of these studies have revealed that the superoxide-generating Respiratory Burst Oxidase Homolog (RBOH) NADPH oxidases control the same processes either upstream or downstream of PAO action. Therefore, it is reasonable to suppose that the two enzymes co-ordinately control the cellular homeostasis of reactive oxygen species. The intricate relationship between PAOs and RBOHs is also discussed, posing the hypothesis that these enzymes indirectly control each other's abundance/function via H2O2.
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13
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Szechyńska-Hebda M, Ghalami RZ, Kamran M, Van Breusegem F, Karpiński S. To Be or Not to Be? Are Reactive Oxygen Species, Antioxidants, and Stress Signalling Universal Determinants of Life or Death? Cells 2022; 11:cells11244105. [PMID: 36552869 PMCID: PMC9777155 DOI: 10.3390/cells11244105] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
In the environmental and organism context, oxidative stress is complex and unavoidable. Organisms simultaneously cope with a various combination of stress factors in natural conditions. For example, excess light stress is accompanied by UV stress, heat shock stress, and/or water stress. Reactive oxygen species (ROS) and antioxidant molecules, coordinated by electrical signalling (ES), are an integral part of the stress signalling network in cells and organisms. They together regulate gene expression to redirect energy to growth, acclimation, or defence, and thereby, determine cellular stress memory and stress crosstalk. In plants, both abiotic and biotic stress increase energy quenching, photorespiration, stomatal closure, and leaf temperature, while toning down photosynthesis and transpiration. Locally applied stress induces ES, ROS, retrograde signalling, cell death, and cellular light memory, then acclimation and defence responses in the local organs, whole plant, or even plant community (systemic acquired acclimation, systemic acquired resistance, network acquired acclimation). A simplified analogy can be found in animals where diseases vs. fitness and prolonged lifespan vs. faster aging, are dependent on mitochondrial ROS production and ES, and body temperature is regulated by sweating, temperature-dependent respiration, and gene regulation. In this review, we discuss the universal features of stress factors, ES, the cellular production of ROS molecules, ROS scavengers, hormones, and other regulators that coordinate life and death.
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Affiliation(s)
- Magdalena Szechyńska-Hebda
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
- W. Szafer Institute of Botany of the Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland
- Correspondence: or (M.S.-H.); (S.K.)
| | - Roshanak Zarrin Ghalami
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Muhammad Kamran
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Frank Van Breusegem
- UGent Department of Plant Biotechnology and Bioinformatics, VIB-UGent Center for Plant Systems Biology Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Stanisław Karpiński
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
- Correspondence: or (M.S.-H.); (S.K.)
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14
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Skrypnik L, Feduraev P, Golovin A, Maslennikov P, Styran T, Antipina M, Riabova A, Katserov D. The Integral Boosting Effect of Selenium on the Secondary Metabolism of Higher Plants. PLANTS (BASEL, SWITZERLAND) 2022; 11:3432. [PMID: 36559543 PMCID: PMC9788459 DOI: 10.3390/plants11243432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Selenium is a micronutrient with a wide range of functions in animals, including humans, and in microorganisms such as microalgae. However, its role in plant metabolism remains ambiguous. Recent studies of Se supplementation showed that not only does it increase the content of the element itself, but also affects the accumulation of secondary metabolites in plants. The purpose of this review is to analyze and summarize the available data on the place of selenium in the secondary metabolism of plants and its effect on the accumulation of some plant metabolites (S- and N-containing secondary metabolites, terpenes, and phenolic compounds). In addition, possible molecular mechanisms and metabolic pathways underlying these effects are discussed. It should be noted that available data on the effect of Se on the accumulation of secondary metabolites are inconsistent and contradictory. According to some studies, selenium has a positive effect on the accumulation of certain metabolites, while other similar studies show a negative effect or no effect at all. The following aspects were identified as possible ways of regulating plant secondary metabolism by Se-supplementation: changes occurring in primary S/N metabolism, hormonal regulation, redox metabolism, as well as at the transcriptomic level of secondary metabolite biosynthesis. In all likelihood, the confusion in the results can be explained by other, more complex regulatory mechanisms in which selenium is involved and which affect the production of metabolites. Further study on the involvement of various forms of selenium in metabolic and signaling pathways is crucial for a deeper understanding of its role in growth, development, and health of plants, as well as the regulatory mechanisms behind them.
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15
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Li X, Liao M, Huang J, Chen L, Huang H, Wu K, Pan Q, Zhang Z, Peng X. Dynamic and fluctuating generation of hydrogen peroxide via photorespiratory metabolic channeling in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:1429-1446. [PMID: 36382906 DOI: 10.1111/tpj.16022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/02/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
The homeostasis of hydrogen peroxide (H2 O2 ), a key regulator of basic biological processes, is a result of the cooperation between its generation and scavenging. However, the mechanistic basis of this balance is not fully understood. We previously proposed that the interaction between glycolate oxidase (GLO) and catalase (CAT) may serve as a molecular switch that modulates H2 O2 levels in plants. In this study, we demonstrate that the GLO-CAT complex in plants exists in different states, which are dynamically interchangeable in response to various stimuli, typically salicylic acid (SA), at the whole-plant level. More crucially, changes in the state of the complex were found to be closely linked to peroxisomal H2 O2 fluctuations, which were independent of the membrane-associated NADPH oxidase. Furthermore, evidence suggested that H2 O2 channeling occurred even in vitro when GLO and CAT worked cooperatively. These results demonstrate that dynamic changes in H2 O2 levels are physically created via photorespiratory metabolic channeling in plants, and that such H2 O2 fluctuations may serve as signals that are mechanistically involved in the known functions of photorespiratory H2 O2 . In addition, our study also revealed a new way for SA to communicate with H2 O2 in plants.
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Mengmeng Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Jiayu Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Linru Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Haiyin Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Kaixin Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Qing Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Zhisheng Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
| | - Xinxiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, Guangzhou, China
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16
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Seiml-Buchinger V, Reifschneider E, Bittner A, Baier M. Ascorbate peroxidase postcold regulation of chloroplast NADPH dehydrogenase activity controls cold memory. PLANT PHYSIOLOGY 2022; 190:1997-2016. [PMID: 35946757 PMCID: PMC9614503 DOI: 10.1093/plphys/kiac355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Exposure of Arabidopsis (Arabidopsis thaliana) to 4°C imprints a cold memory that modulates gene expression in response to a second (triggering) stress stimulus applied several days later. Comparison of plastid transcriptomes of cold-primed and control plants directly before they were exposed to the triggering stimulus showed downregulation of several subunits of chloroplast NADPH dehydrogenase (NDH) and regulatory subunits of ATP synthase. NDH is, like proton gradient 5 (PGR5)-PGR5-like1 (PGRL1), a thylakoid-embedded, ferredoxin-dependent plastoquinone reductase that protects photosystem I and stabilizes ATP synthesis by cyclic electron transport (CET). Like PGRL1A and PGRL1B transcript levels, ndhA and ndhD transcript levels decreased during the 24-h long priming cold treatment. PGRL1 transcript levels were quickly reset in the postcold phase, but expression of ndhA remained low. The transcript abundances of other ndh genes decreased within the next days. Comparison of thylakoid-bound ascorbate peroxidase (tAPX)-free and transiently tAPX-overexpressing or tAPX-downregulating Arabidopsis lines demonstrated that ndh expression is suppressed by postcold induction of tAPX. Four days after cold priming, when tAPX protein accumulation was maximal, NDH activity was almost fully lost. Lack of the NdhH-folding chaperonin Crr27 (Cpn60β4), but not lack of the NDH activity modulating subunits NdhM, NdhO, or photosynthetic NDH subcomplex B2 (PnsB2), strengthened priming regulation of zinc finger of A. thaliana 10, which is a nuclear-localized target gene of the tAPX-dependent cold-priming pathway. We conclude that cold-priming modifies chloroplast-to-nucleus stress signaling by tAPX-mediated suppression of NDH-dependent CET and that plastid-encoded NdhH, which controls subcomplex A assembly, is of special importance for memory stabilization.
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Affiliation(s)
- Victoria Seiml-Buchinger
- Plant Physiology, Freie Universität Berlin, Dahlem Centre of Plant Sciences, Berlin 14195,Germany
| | - Elena Reifschneider
- Plant Physiology, Freie Universität Berlin, Dahlem Centre of Plant Sciences, Berlin 14195,Germany
| | - Andras Bittner
- Plant Physiology, Freie Universität Berlin, Dahlem Centre of Plant Sciences, Berlin 14195,Germany
| | - Margarete Baier
- Plant Physiology, Freie Universität Berlin, Dahlem Centre of Plant Sciences, Berlin 14195,Germany
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17
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Terrón-Camero LC, Peláez-Vico MÁ, Rodríguez-González A, del Val C, Sandalio LM, Romero-Puertas MC. Gene network downstream plant stress response modulated by peroxisomal H 2O 2. FRONTIERS IN PLANT SCIENCE 2022; 13:930721. [PMID: 36082297 PMCID: PMC9445673 DOI: 10.3389/fpls.2022.930721] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Reactive oxygen species (ROS) act as secondary messengers that can be sensed by specific redox-sensitive proteins responsible for the activation of signal transduction culminating in altered gene expression. The subcellular site, in which modifications in the ROS/oxidation state occur, can also act as a specific cellular redox network signal. The chemical identity of ROS and their subcellular origin is actually a specific imprint on the transcriptome response. In recent years, a number of transcriptomic studies related to altered ROS metabolism in plant peroxisomes have been carried out. In this study, we conducted a meta-analysis of these transcriptomic findings to identify common transcriptional footprints for plant peroxisomal-dependent signaling at early and later time points. These footprints highlight the regulation of various metabolic pathways and gene families, which are also found in plant responses to several abiotic stresses. Major peroxisomal-dependent genes are associated with protein and endoplasmic reticulum (ER) protection at later stages of stress while, at earlier stages, these genes are related to hormone biosynthesis and signaling regulation. Furthermore, in silico analyses allowed us to assign human orthologs to some of the peroxisomal-dependent proteins, which are mainly associated with different cancer pathologies. Peroxisomal footprints provide a valuable resource for assessing and supporting key peroxisomal functions in cellular metabolism under control and stress conditions across species.
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Affiliation(s)
- Laura C. Terrón-Camero
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - M. Ángeles Peláez-Vico
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - A. Rodríguez-González
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Coral del Val
- Department of Artificial Intelligence, University of Granada, Granada, Spain
- Andalusian Data Science and Computational Intelligence (DaSCI) Research Institute, University of Granada, Granada, Spain
| | - Luisa M. Sandalio
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - María C. Romero-Puertas
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
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18
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Lei Y, Zhao H, Wu Y, Huang L, Nie W, Liu H, Wu G, Pang DW, Xie HY. Phytochemical natural killer cells reprogram tumor microenvironment for potent immunotherapy of solid tumors. Biomaterials 2022; 287:121635. [PMID: 35921728 DOI: 10.1016/j.biomaterials.2022.121635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 06/08/2022] [Accepted: 06/12/2022] [Indexed: 11/02/2022]
Abstract
Natural killer cells (NKs) hold great promise in cancer treatment, but their application in solid tumors remains a great challenge because current solutions hardly can overcome various difficulties that faced. Herein, we endow NKs with the phytochemical feature for effective immunotherapy of solid tumors. NKs are decorated with natural thylakoid (Tk) membranes through an efficient and convenient membrane fusion strategy. Tk engineering effectively activates NKs, because the antioxidase on Tk induce glycogen synthase kinase-3β inhibition, and subsequently increase the expression of activating receptor and cytotoxic effector molecules in NKs. After systemic administration, the phytochemical NKs (PC-NKs) can target tumor tissues, and then profoundly reprogram tumor microenvironment (TME) with the help of catalase on Tk, resulting in significantly enhanced direct killing of PC-NKs and immune activated TME. Therefore, potent therapeutic effects with few abnormalities are achieved, providing a novel idea for the development of highly efficient NKs for solid tumors.
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Affiliation(s)
- Yao Lei
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Helin Zhao
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yuzhu Wu
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Lili Huang
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Weidong Nie
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Houli Liu
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Guanghao Wu
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Dai-Wen Pang
- College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Hai-Yan Xie
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, PR China.
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19
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Ivanov B, Borisova-Mubarakshina M, Vilyanen D, Vetoshkina D, Kozuleva M. Cooperative pathway of O2 reduction to H2O2 in chloroplast thylakoid membrane: new insight into the Mehler reaction. Biophys Rev 2022; 14:857-869. [DOI: 10.1007/s12551-022-00980-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/03/2022] [Indexed: 11/30/2022] Open
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20
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Li C, Duan C, Zhang H, Zhao Y, Meng Z, Zhao Y, Zhang Q. Adaptative Mechanisms of Halophytic Eutrema salsugineum Encountering Saline Environment. FRONTIERS IN PLANT SCIENCE 2022; 13:909527. [PMID: 35837468 PMCID: PMC9274170 DOI: 10.3389/fpls.2022.909527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Salt cress (Eutrema salsugineum), an Arabidopsis-related halophyte, can naturally adapt to various harsh climates and soil conditions; thus, it is considered a desirable model plant for deciphering mechanisms of salt and other abiotic stresses. Accumulating evidence has revealed that compared with Arabidopsis, salt cress possesses stomata that close more tightly and more succulent leaves during extreme salt stress, a noticeably higher level of proline, inositols, sugars, and organic acids, as well as stress-associated transcripts in unstressed plants, and they are induced rapidly under stress. In this review, we systematically summarize the research on the morphology, physiology, genome, gene expression and regulation, and protein and metabolite profile of salt cress under salt stress. We emphasize the latest advances in research on the genome adaptive evolution encountering saline environments, and epigenetic regulation, and discuss the mechanisms underlying salt tolerance in salt cress. Finally, we discuss the existing questions and opportunities for future research in halophytic Eutrema. Together, the review fosters a better understanding of the mechanism of plant salt tolerance and provides a reference for the research and utilization of Eutrema as a model extremophile in the future. Furthermore, the prospects for salt cress applied to explore the mechanism of salt tolerance provide a theoretical basis to develop new strategies for agricultural biotechnology.
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Affiliation(s)
- Chuanshun Li
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Chonghao Duan
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Hengyang Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Yaoyao Zhao
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Zhe Meng
- Research Team of Plant Pathogen Microbiology and Immunology, College of Life Science, Shandong Normal University, Jinan, China
| | - Yanxiu Zhao
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Quan Zhang
- Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Science, Shandong Normal University, Jinan, China
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21
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Lukan T, Coll A. Intertwined Roles of Reactive Oxygen Species and Salicylic Acid Signaling Are Crucial for the Plant Response to Biotic Stress. Int J Mol Sci 2022; 23:ijms23105568. [PMID: 35628379 PMCID: PMC9147500 DOI: 10.3390/ijms23105568] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/30/2022] [Accepted: 05/11/2022] [Indexed: 12/22/2022] Open
Abstract
One of the earliest hallmarks of plant immune response is production of reactive oxygen species (ROS) in different subcellular compartments, which regulate plant immunity. A suitable equilibrium, which is crucial to prevent ROS overaccumulation leading to oxidative stress, is maintained by salicylic acid (SA), a chief regulator of ROS. However, ROS not only act downstream of SA signaling, but are also proposed to be a central component of a self-amplifying loop that regulates SA signaling as well as the interaction balance between different phytohormones. The exact role of this crosstalk, the position where SA interferes with ROS signaling and ROS interferes with SA signaling and the outcome of this regulation, depend on the origin of ROS but also on the pathosystem. The precise spatiotemporal regulation of organelle-specific ROS and SA levels determine the effectiveness of pathogen arrest and is therefore crucial for a successful immune response. However, the regulatory interplay behind still remains poorly understood, as up until now, the role of organelle-specific ROS and SA in hypersensitive response (HR)-conferred resistance has mostly been studied by altering the level of a single component. In order to address these aspects, a sophisticated combination of research methods for monitoring the spatiotemporal dynamics of key players and transcriptional activity in plants is needed and will most probably consist of biosensors and precision transcriptomics.
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22
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Sonmez MC, Ozgur R, Uzilday B, Turkan I, Ganie SA. Redox regulation in
C
3
and
C
4
plants during climate change and its implications on food security. Food Energy Secur 2022. [DOI: 10.1002/fes3.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
| | - Rengin Ozgur
- Department of Biology Faculty of Science Ege University Izmir Turkey
- Graduate School of Life Sciences Tohoku University Sendai Japan
| | - Baris Uzilday
- Department of Biology Faculty of Science Ege University Izmir Turkey
- Graduate School of Life Sciences Tohoku University Sendai Japan
| | - Ismail Turkan
- Department of Biology Faculty of Science Ege University Izmir Turkey
| | - Showkat Ahmad Ganie
- Plant Molecular Science and Centre of Systems and Synthetic Biology Department of Biological Sciences Royal Holloway University of London Egham UK
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23
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Hafsi C, Collado-Arenal AM, Wang H, Sanz-Fernández M, Sahrawy M, Shabala S, Romero-Puertas MC, Sandalio LM. The role of NADPH oxidases in regulating leaf gas exchange and ion homeostasis in Arabidopsis plants under cadmium stress. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128217. [PMID: 35077969 DOI: 10.1016/j.jhazmat.2022.128217] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/23/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
NADPH oxidase, an enzyme associated with the plasma membrane, constitutes one of the main sources of reactive oxygen species (ROS) which regulate different developmental and adaptive responses in plants. In this work, the involvement of NADPH oxidases in the regulation of photosynthesis and cell ionic homeostasis in response to short cadmium exposure was compared between wild type (WT) and three RBOHs (Respiratory Burst Oxidase Homologues) Arabidopsis mutants (AtrbohC, AtrbohD, and AtrbohF). Plants were grown under hydroponic conditions and supplemented with 50 µM CdCl2 for 24 h. Cadmium treatment differentially affected photosynthesis, stomatal conductance, transpiration, and antioxidative responses in WT and Atrbohs mutants. The loss of function of RBOH isoforms resulted in higher Cd2+ influx, mainly in the elongation zone of roots, which was more evident in AtrbohD and AtrbohF mutants. In the mature zone, the highest Cd2+ influx was observed in rbohC mutant. The lack of functional RBOH isoforms also resulted in altered patterns of net K+ transport across cellular membranes, both in the root epidermis and leaf mesophyll. The analysis of expression of metal transporters by qPCR demonstrated that a loss of functional RBOH isoforms has altered transcript levels for metal NRAMP3, NRAMP6 and IRT1 and the K+ transporters outward-rectifying K+ efflux GORK channel, while RBOHD specifically regulated transcripts for high-affinity K+ transporters KUP8 and HAK5, and IRT1 and RBOHD and F regulated the transcription factors TGA3 and TGA10. It is concluded that RBOH-dependent H2O2 regulation of ion homeostasis and Cd is a highly complex process involving multilevel regulation from transpirational water flow to transcriptional and posttranslational modifications of K/metals transporters.
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Affiliation(s)
- Chokri Hafsi
- Laboratory of Extremophile Plants, Centre of Biotechnology of Borj-Cedria, P. O. Box 901 - 2050, Hammam-Lif, Tunisia; Higher Institute of Biotechnology of Beja (ISBB), University of Jendouba, Habib Bourguiba avenue P. O. Box 382 - 9000, Beja, Tunisia
| | - Aurelio M Collado-Arenal
- Department of Plant Biochemistry, Cellular and Molecular Biology. Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Haiyang Wang
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - María Sanz-Fernández
- Department of Plant Biochemistry, Cellular and Molecular Biology. Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Mariam Sahrawy
- Department of Plant Biochemistry, Cellular and Molecular Biology. Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Sergey Shabala
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Tasmania 7001, Australia; International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, China
| | - María C Romero-Puertas
- Department of Plant Biochemistry, Cellular and Molecular Biology. Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Luisa M Sandalio
- Department of Plant Biochemistry, Cellular and Molecular Biology. Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008 Granada, Spain.
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24
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El-Sappah AH, Rather SA, Wani SH, Elrys AS, Bilal M, Huang Q, Dar ZA, Elashtokhy MMA, Soaud N, Koul M, Mir RR, Yan K, Li J, El-Tarabily KA, Abbas M. Heat Stress-Mediated Constraints in Maize ( Zea mays) Production: Challenges and Solutions. FRONTIERS IN PLANT SCIENCE 2022; 13:879366. [PMID: 35615131 PMCID: PMC9125997 DOI: 10.3389/fpls.2022.879366] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 03/30/2022] [Indexed: 05/05/2023]
Abstract
An increase in temperature and extreme heat stress is responsible for the global reduction in maize yield. Heat stress affects the integrity of the plasma membrane functioning of mitochondria and chloroplast, which further results in the over-accumulation of reactive oxygen species. The activation of a signal cascade subsequently induces the transcription of heat shock proteins. The denaturation and accumulation of misfolded or unfolded proteins generate cell toxicity, leading to death. Therefore, developing maize cultivars with significant heat tolerance is urgently required. Despite the explored molecular mechanism underlying heat stress response in some plant species, the precise genetic engineering of maize is required to develop high heat-tolerant varieties. Several agronomic management practices, such as soil and nutrient management, plantation rate, timing, crop rotation, and irrigation, are beneficial along with the advanced molecular strategies to counter the elevated heat stress experienced by maize. This review summarizes heat stress sensing, induction of signaling cascade, symptoms, heat stress-related genes, the molecular feature of maize response, and approaches used in developing heat-tolerant maize varieties.
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Affiliation(s)
- Ahmed H. El-Sappah
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Shabir A. Rather
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, China
| | - Shabir Hussain Wani
- Mountain Research Centre for Field Crops Khudwani Anantnag, SKUAST–Kashmir, Srinagar, India
| | - Ahmed S. Elrys
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Muhammad Bilal
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Qiulan Huang
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
- College of Tea Science, Yibin University, Yibin, China
| | - Zahoor Ahmad Dar
- Dryland Agriculture Research Station, SKUAST–Kashmir, Srinagar, India
| | | | - Nourhan Soaud
- Department of Crop Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Monika Koul
- Department of Botany, Hansraj College, University of Delhi, New Delhi, India
| | - Reyazul Rouf Mir
- Division of Genetics and Plant Breeding, Faculty of Agriculture (FoA), SKUAST–Kashmir, Sopore, India
| | - Kuan Yan
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Jia Li
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Manzar Abbas
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
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25
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Liu Z, Wang H, Lv J, Luo S, Hu L, Wang J, Li L, Zhang G, Xie J, Yu J. Effects of Plant Hormones, Metal Ions, Salinity, Sugar, and Chemicals Pollution on Glucosinolate Biosynthesis in Cruciferous Plant. FRONTIERS IN PLANT SCIENCE 2022; 13:856442. [PMID: 35574082 PMCID: PMC9096887 DOI: 10.3389/fpls.2022.856442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/17/2022] [Indexed: 06/15/2023]
Abstract
Cruciferous vegetable crops are grown widely around the world, which supply a multitude of health-related micronutrients, phytochemicals, and antioxidant compounds. Glucosinolates (GSLs) are specialized metabolites found widely in cruciferous vegetables, which are not only related to flavor formation but also have anti-cancer, disease-resistance, and insect-resistance properties. The content and components of GSLs in the Cruciferae are not only related to genotypes and environmental factors but also are influenced by hormones, plant growth regulators, and mineral elements. This review discusses the effects of different exogenous substances on the GSL content and composition, and analyzes the molecular mechanism by which these substances regulate the biosynthesis of GSLs. Based on the current research status, future research directions are also proposed.
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Affiliation(s)
- Zeci Liu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Huiping Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jian Lv
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Shilei Luo
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Linli Hu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jie Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Lushan Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Guobin Zhang
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jianming Xie
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou, China
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26
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Melicher P, Dvořák P, Krasylenko Y, Shapiguzov A, Kangasjärvi J, Šamaj J, Takáč T. Arabidopsis Iron Superoxide Dismutase FSD1 Protects Against Methyl Viologen-Induced Oxidative Stress in a Copper-Dependent Manner. FRONTIERS IN PLANT SCIENCE 2022; 13:823561. [PMID: 35360337 PMCID: PMC8963501 DOI: 10.3389/fpls.2022.823561] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Iron superoxide dismutase 1 (FSD1) was recently characterized as a plastidial, cytoplasmic, and nuclear enzyme with osmoprotective and antioxidant functions. However, the current knowledge on its role in oxidative stress tolerance is ambiguous. Here, we characterized the role of FSD1 in response to methyl viologen (MV)-induced oxidative stress in Arabidopsis thaliana. In accordance with the known regulation of FSD1 expression, abundance, and activity, the findings demonstrated that the antioxidant function of FSD1 depends on the availability of Cu2+ in growth media. Arabidopsis fsd1 mutants showed lower capacity to decompose superoxide at low Cu2+ concentrations in the medium. Prolonged exposure to MV led to reduced ascorbate levels and higher protein carbonylation in fsd1 mutants and transgenic plants lacking a plastid FSD1 pool as compared to the wild type. MV induced a rapid increase in FSD1 activity, followed by a decrease after 4 h long exposure. Genetic disruption of FSD1 negatively affected the hydrogen peroxide-decomposing ascorbate peroxidase in fsd1 mutants. Chloroplastic localization of FSD1 is crucial to maintain redox homeostasis. Proteomic analysis showed that the sensitivity of fsd1 mutants to MV coincided with decreased abundances of ferredoxin and photosystem II light-harvesting complex proteins. These mutants have higher levels of chloroplastic proteases indicating an altered protein turnover in chloroplasts. Moreover, FSD1 disruption affects the abundance of proteins involved in the defense response. Collectively, the study provides evidence for the conditional antioxidative function of FSD1 and its possible role in signaling.
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Affiliation(s)
- Pavol Melicher
- Department of Biotechnology, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Petr Dvořák
- Department of Biotechnology, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Yuliya Krasylenko
- Department of Biotechnology, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Alexey Shapiguzov
- Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
- Production Systems Unit, Natural Resources Institute Finland (Luke), Piikkiö, Finland
- Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russia
| | - Jaakko Kangasjärvi
- Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland
| | - Jozef Šamaj
- Department of Biotechnology, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
| | - Tomáš Takáč
- Department of Biotechnology, Faculty of Science, Palacký University Olomouc, Olomouc, Czechia
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27
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Breeze E, Mullineaux PM. The Passage of H 2O 2 from Chloroplasts to Their Associated Nucleus during Retrograde Signalling: Reflections on the Role of the Nuclear Envelope. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11040552. [PMID: 35214888 PMCID: PMC8876790 DOI: 10.3390/plants11040552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 05/05/2023]
Abstract
The response of chloroplasts to adverse environmental cues, principally increases in light intensity, stimulates chloroplast-to-nucleus retrograde signalling, which leads to the induction of immediate protective responses and longer-term acclimation. Hydrogen peroxide (H2O2), generated during photosynthesis, is proposed to both initiate and transduce a retrograde signal in response to photoinhibitory light intensities. Signalling specificity achieved by chloroplast-sourced H2O2 for signal transduction may be dependent upon the oft-observed close association of a proportion of these organelles with the nucleus. In this review, we consider more precisely the nature of the close association between a chloroplast appressed to the nucleus and the requirement for H2O2 to cross both the double membranes of the chloroplast and nuclear envelopes. Of particular relevance is that the endoplasmic reticulum (ER) has close physical contact with chloroplasts and is contiguous with the nuclear envelope. Therefore, the perinuclear space, which transducing H2O2 molecules would have to cross, may have an oxidising environment the same as the ER lumen. Based on studies in animal cells, the ER lumen may be a significant source of H2O2 in plant cells arising from the oxidative folding of proteins. If this is the case, then there is potential for the ER lumen/perinuclear space to be an important location to modify chloroplast-to-nucleus H2O2 signal transduction and thereby introduce modulation of it by additional different environmental cues. These would include for example, heat stress and pathogen infection, which induce the unfolded protein response characterised by an increased H2O2 level in the ER lumen.
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Affiliation(s)
- Emily Breeze
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK;
| | - Philip M. Mullineaux
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK
- Correspondence: ; Tel.: +44-1206-872118
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28
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Zentgraf U, Andrade-Galan AG, Bieker S. Specificity of H 2O 2 signaling in leaf senescence: is the ratio of H 2O 2 contents in different cellular compartments sensed in Arabidopsis plants? Cell Mol Biol Lett 2022; 27:4. [PMID: 34991444 PMCID: PMC8903538 DOI: 10.1186/s11658-021-00300-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/17/2021] [Indexed: 01/21/2023] Open
Abstract
Leaf senescence is an integral part of plant development and is driven by endogenous cues such as leaf or plant age. Developmental senescence aims to maximize the usage of carbon, nitrogen and mineral resources for growth and/or for the sake of the next generation. This requires efficient reallocation of the resources out of the senescing tissue into developing parts of the plant such as new leaves, fruits and seeds. However, premature senescence can be induced by severe and long-lasting biotic or abiotic stress conditions. It serves as an exit strategy to guarantee offspring in an unfavorable environment but is often combined with a trade-off in seed number and quality. In order to coordinate the very complex process of developmental senescence with environmental signals, highly organized networks and regulatory cues have to be in place. Reactive oxygen species, especially hydrogen peroxide (H2O2), are involved in senescence as well as in stress signaling. Here, we want to summarize the role of H2O2 as a signaling molecule in leaf senescence and shed more light on how specificity in signaling might be achieved. Altered hydrogen peroxide contents in specific compartments revealed a differential impact of H2O2 produced in different compartments. Arabidopsis lines with lower H2O2 levels in chloroplasts and cytoplasm point to the possibility that not the actual contents but the ratio between the two different compartments is sensed by the plant cells.
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Affiliation(s)
- Ulrike Zentgraf
- ZMBP (Centre of Plant Molecular Biology), University of Tübingen, Auf der Morgenstelle 32, 72076, Tübingen, Germany.
| | - Ana Gabriela Andrade-Galan
- ZMBP (Centre of Plant Molecular Biology), University of Tübingen, Auf der Morgenstelle 32, 72076, Tübingen, Germany
| | - Stefan Bieker
- ZMBP (Centre of Plant Molecular Biology), University of Tübingen, Auf der Morgenstelle 32, 72076, Tübingen, Germany
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29
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Stahl E, Fernandez Martin A, Glauser G, Guillou MC, Aubourg S, Renou JP, Reymond P. The MIK2/SCOOP Signaling System Contributes to Arabidopsis Resistance Against Herbivory by Modulating Jasmonate and Indole Glucosinolate Biosynthesis. FRONTIERS IN PLANT SCIENCE 2022; 13:852808. [PMID: 35401621 PMCID: PMC8984487 DOI: 10.3389/fpls.2022.852808] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/22/2022] [Indexed: 05/14/2023]
Abstract
Initiation of plant immune signaling requires recognition of conserved molecular patterns from microbes and herbivores by plasma membrane-localized pattern recognition receptors. Additionally, plants produce and secrete numerous small peptide hormones, termed phytocytokines, which act as secondary danger signals to modulate immunity. In Arabidopsis, the Brassicae-specific SERINE RICH ENDOGENOUS PEPTIDE (SCOOP) family consists of 14 members that are perceived by the leucine-rich repeat receptor kinase MALE DISCOVERER 1-INTERACTING RECEPTOR LIKE KINASE 2 (MIK2). Recognition of SCOOP peptides elicits generic early signaling responses but knowledge on how and if SCOOPs modulate specific downstream immune defenses is limited. We report here that depletion of MIK2 or the single PROSCOOP12 precursor results in decreased Arabidopsis resistance against the generalist herbivore Spodoptera littoralis but not the specialist Pieris brassicae. Increased performance of S. littoralis on mik2-1 and proscoop12 is accompanied by a diminished accumulation of jasmonic acid, jasmonate-isoleucine and indolic glucosinolates. Additionally, we show transcriptional activation of the PROSCOOP gene family in response to insect herbivory. Our data therefore indicate that perception of endogenous SCOOP peptides by MIK2 modulates the jasmonate pathway and thereby contributes to enhanced defense against a generalist herbivore.
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Affiliation(s)
- Elia Stahl
- Department of Plant Molecular Biology, University of Lausanne, Lausanne, Switzerland
- *Correspondence: Elia Stahl,
| | | | - Gaétan Glauser
- Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Neuchâtel, Switzerland
| | - Marie-Charlotte Guillou
- Institut de Recherche en Horticulture et Semences, UMR 1345, INRAE, Agrocampus-Ouest, Université d’Angers, Beaucouzé, France
| | - Sébastien Aubourg
- Institut de Recherche en Horticulture et Semences, UMR 1345, INRAE, Agrocampus-Ouest, Université d’Angers, Beaucouzé, France
| | - Jean-Pierre Renou
- Institut de Recherche en Horticulture et Semences, UMR 1345, INRAE, Agrocampus-Ouest, Université d’Angers, Beaucouzé, France
| | - Philippe Reymond
- Department of Plant Molecular Biology, University of Lausanne, Lausanne, Switzerland
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30
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Lima-Melo Y, Kılıç M, Aro EM, Gollan PJ. Photosystem I Inhibition, Protection and Signalling: Knowns and Unknowns. FRONTIERS IN PLANT SCIENCE 2021; 12:791124. [PMID: 34925429 PMCID: PMC8671627 DOI: 10.3389/fpls.2021.791124] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/11/2021] [Indexed: 05/22/2023]
Abstract
Photosynthesis is the process that harnesses, converts and stores light energy in the form of chemical energy in bonds of organic compounds. Oxygenic photosynthetic organisms (i.e., plants, algae and cyanobacteria) employ an efficient apparatus to split water and transport electrons to high-energy electron acceptors. The photosynthetic system must be finely balanced between energy harvesting and energy utilisation, in order to limit generation of dangerous compounds that can damage the integrity of cells. Insight into how the photosynthetic components are protected, regulated, damaged, and repaired during changing environmental conditions is crucial for improving photosynthetic efficiency in crop species. Photosystem I (PSI) is an integral component of the photosynthetic system located at the juncture between energy-harnessing and energy consumption through metabolism. Although the main site of photoinhibition is the photosystem II (PSII), PSI is also known to be inactivated by photosynthetic energy imbalance, with slower reactivation compared to PSII; however, several outstanding questions remain about the mechanisms of damage and repair, and about the impact of PSI photoinhibition on signalling and metabolism. In this review, we address the knowns and unknowns about PSI activity, inhibition, protection, and repair in plants. We also discuss the role of PSI in retrograde signalling pathways and highlight putative signals triggered by the functional status of the PSI pool.
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Affiliation(s)
- Yugo Lima-Melo
- Post-graduation Programme in Cellular and Molecular Biology (PPGBCM), Department of Botany, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Mehmet Kılıç
- Molecular Plant Biology, Department of Life Technologies, University of Turku, Turku, Finland
| | - Eva-Mari Aro
- Molecular Plant Biology, Department of Life Technologies, University of Turku, Turku, Finland
| | - Peter J. Gollan
- Molecular Plant Biology, Department of Life Technologies, University of Turku, Turku, Finland
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31
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Transcriptomic Changes in Internode Explants of Stinging Nettle during Callogenesis. Int J Mol Sci 2021; 22:ijms222212319. [PMID: 34830202 PMCID: PMC8618292 DOI: 10.3390/ijms222212319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 12/23/2022] Open
Abstract
Callogenesis, the process during which explants derived from differentiated plant tissues are subjected to a trans-differentiation step characterized by the proliferation of a mass of cells, is fundamental to indirect organogenesis and the establishment of cell suspension cultures. Therefore, understanding how callogenesis takes place is helpful to plant tissue culture, as well as to plant biotechnology and bioprocess engineering. The common herbaceous plant stinging nettle (Urtica dioica L.) is a species producing cellulosic fibres (the bast fibres) and a whole array of phytochemicals for pharmacological, nutraceutical and cosmeceutical use. Thus, it is of interest as a potential multi-purpose plant. In this study, callogenesis in internode explants of a nettle fibre clone (clone 13) was studied using RNA-Seq to understand which gene ontologies predominate at different time points. Callogenesis was induced with the plant growth regulators α-napthaleneacetic acid (NAA) and 6-benzyl aminopurine (BAP) after having determined their optimal concentrations. The process was studied over a period of 34 days, a time point at which a well-visible callus mass developed on the explants. The bioinformatic analysis of the transcriptomic dataset revealed specific gene ontologies characterizing each of the four time points investigated (0, 1, 10 and 34 days). The results show that, while the advanced stage of callogenesis is characterized by the iron deficiency response triggered by the high levels of reactive oxygen species accumulated by the proliferating cell mass, the intermediate and early phases are dominated by ontologies related to the immune response and cell wall loosening, respectively.
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32
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Ferreira AR, Marques M, Ramos B, Kagan JC, Ribeiro D. Emerging roles of peroxisomes in viral infections. Trends Cell Biol 2021; 32:124-139. [PMID: 34696946 DOI: 10.1016/j.tcb.2021.09.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 01/01/2023]
Abstract
Peroxisomes, essential subcellular organelles that fulfill important functions in lipid and reactive oxygen species metabolism, have recently emerged as key players during viral infections. Their importance for the establishment of the cellular antiviral response has been highlighted by numerous reports of specific evasion of peroxisome-dependent signaling by different viruses. Recent data demonstrate that peroxisomes also assume important proviral functions. Here, we review and discuss the recent advances in the study of the diverse roles of peroxisomes during viral infections, from animal to plant viruses, and from basic to translational perspectives. We further discuss the future development of this emerging area and propose that peroxisome-related mechanisms represent a promising target for the development of novel antiviral strategies.
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Affiliation(s)
- Ana Rita Ferreira
- Institute of Biomedicine (iBiMED) and Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Mariana Marques
- Institute of Biomedicine (iBiMED) and Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Bruno Ramos
- Institute of Biomedicine (iBiMED) and Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Daniela Ribeiro
- Institute of Biomedicine (iBiMED) and Department of Medical Sciences, University of Aveiro, Aveiro, Portugal.
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33
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Abstract
Phototherapy, with minimally invasive and cosmetic effect, has received considerable attention and been widely studied in cancer treatment, especially in biomaterials field. However, most nanomaterials applied for the delivery of phototherapy agents are usually recognized by the immune system or cleared by liver and kidney, thus hindering their clinical applications. To overcome these limitations, bionic technology stands out by virtue of its low antigenicity and targeting properties, including membrane bionics and bionic enzymes. In this review, we will summarize the up-to-date progress in the development of biomimetic camouflage-based nanomaterials for phototherapy, from synthesis to application, and their future in cancer treatment.
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Affiliation(s)
- Yifan Zhao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, PR China
| | - Cuixia Shi
- Department of Gynecology and Obstetrics, The People's Hospital of Feixian, Linyi, PR China
| | - Jie Cao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, PR China
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34
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Sun Y, Li Y, Li Y, Wang M, Mur LAJ, Shen Q, Guo S. Nitrate mediated resistance against Fusarium infection in cucumber plants acts via photorespiration. PLANT, CELL & ENVIRONMENT 2021; 44:3412-3431. [PMID: 34181268 DOI: 10.1111/pce.14140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
Fusarium wilt is one of the major biotic factors limiting cucumber (Cucumis sativus L.) growth and yield. The outcomes of cucumber-Fusarium interactions can be influenced by the form of nitrogen nutrition (nitrate [NO3- ] or ammonium [NH4+ ]); however, the physiological mechanisms of N-regulated cucumber disease resistance are still largely unclear. Here, we investigated the relationship between nitrogen forms and cucumber resistance to Fusarium infection. Our results showed that on Fusarium infection, NO3- feeding decreased the levels of the fungal toxin, fusaric acid, leaf membrane oxidative, organelle damage and disease-associated loss in photosynthesis. Metabolomic analysis and gas-exchange measurements linked NO3- mediated plant defence with enhanced leaf photorespiration rates. Cucumber plants sprayed with the photorespiration inhibitor isoniazid were more susceptible to Fusarium and there was a negative correlation between photorespiration rate and leaf membrane injury. However, there were positive correlations between photorespiration rate, NO3- assimilation and the tricarboxylic acid (TCA) cycle. This provides a potential electron sink or the peroxisomal H2 O2 catalysed by glycolate oxidase. We suggest that the NO3- nutrition enhanced cucumber resistance against Fusarium infection was associated with photorespiration. Our findings provide a novel insight into a mechanism involving the interaction of photorespiration with nitrogen forms to drive wider defence.
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Affiliation(s)
- Yuming Sun
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Centre for Organic-based Fertilizers, Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Yingrui Li
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Centre for Organic-based Fertilizers, Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
| | - Yong Li
- Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Min Wang
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Centre for Organic-based Fertilizers, Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
| | - Luis Alejandro Jose Mur
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK
| | - Qirong Shen
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Centre for Organic-based Fertilizers, Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
| | - Shiwei Guo
- Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, National Engineering Research Centre for Organic-based Fertilizers, Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, China
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Differential Regulation of NAPDH Oxidases in Salt-Tolerant Eutrema salsugineum and Salt-Sensitive Arabidopsis thaliana. Int J Mol Sci 2021; 22:ijms221910341. [PMID: 34638681 PMCID: PMC8508936 DOI: 10.3390/ijms221910341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/30/2022] Open
Abstract
Reactive oxygen species (ROS) signalling is crucial in modulating stress responses in plants, and NADPH oxidases (NOXs) are an important component of signal transduction under salt stress. The goal of this research was to investigate whether the regulation of NOX-dependent signalling during mild and severe salinity differs between the halophyte Eutrema salsugineum and the glycophyte Arabidopsis thaliana. Gene expression analyses showed that salt-induced expression patterns of two NOX genes, RBOHD and RBOHF, varied between the halophyte and the glycophyte. Five days of salinity stimulated the expression of both genes in E. salsugineum leaves, while their expression in A. thaliana decreased. This was not accompanied by changes in the total NOX activity in E. salsugineum, while the activity in A. thaliana was reduced. The expression of the RBOHD and RBOHF genes in E. salsugineum leaves was induced by abscisic acid (ABA) and ethephon spraying. The in silico analyses of promoter sequences of RBOHD and RBOHF revealed multiple cis-acting elements related to hormone responses, and their distribution varied between E. salsugineum and A. thaliana. Our results indicate that, in the halophyte E. salsugineum, the maintenance of the basal activity of NOXs in leaves plays a role during acclimation responses to salt stress. The different expression patterns of the RBOHD and RBOHF genes under salinity in E. salsugineum and A. thaliana point to a modified regulation of these genes in the halophyte, possibly through ABA- and/or ethylene-dependent pathways.
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Romero-Puertas MC, Terrón-Camero LC, Peláez-Vico MÁ, Molina-Moya E, Sandalio LM. An update on redox signals in plant responses to biotic and abiotic stress crosstalk: insights from cadmium and fungal pathogen interactions. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5857-5875. [PMID: 34111283 PMCID: PMC8355756 DOI: 10.1093/jxb/erab271] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/07/2021] [Indexed: 05/09/2023]
Abstract
Complex signalling pathways are involved in plant protection against single and combined stresses. Plants are able to coordinate genome-wide transcriptional reprogramming and display a unique programme of transcriptional responses to a combination of stresses that differs from the response to single stresses. However, a significant overlap between pathways and some defence genes in the form of shared and general stress-responsive genes appears to be commonly involved in responses to multiple biotic and abiotic stresses. Reactive oxygen and nitrogen species, as well as redox signals, are key molecules involved at the crossroads of the perception of different stress factors and the regulation of both specific and general plant responses to biotic and abiotic stresses. In this review, we focus on crosstalk between plant responses to biotic and abiotic stresses, in addition to possible plant protection against pathogens caused by previous abiotic stress. Bioinformatic analyses of transcriptome data from cadmium- and fungal pathogen-treated plants focusing on redox gene ontology categories were carried out to gain a better understanding of common plant responses to abiotic and biotic stresses. The role of reactive oxygen and nitrogen species in the complex network involved in plant responses to changes in their environment is also discussed.
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Affiliation(s)
- María C Romero-Puertas
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estacion Experimental del Zaidin (EEZ), Consejo Superior de Investigaciones Cientificas (CSIC), Apartado 419, 18080 Granada, Spain
| | - Laura C Terrón-Camero
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estacion Experimental del Zaidin (EEZ), Consejo Superior de Investigaciones Cientificas (CSIC), Apartado 419, 18080 Granada, Spain
- Bioinformatics Unit, Institute of Parasitology and Biomedicine “López-Neyra” (IPBLN-CSIC), Granada, Spain
| | - M Ángeles Peláez-Vico
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estacion Experimental del Zaidin (EEZ), Consejo Superior de Investigaciones Cientificas (CSIC), Apartado 419, 18080 Granada, Spain
| | - Eliana Molina-Moya
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estacion Experimental del Zaidin (EEZ), Consejo Superior de Investigaciones Cientificas (CSIC), Apartado 419, 18080 Granada, Spain
| | - Luisa M Sandalio
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estacion Experimental del Zaidin (EEZ), Consejo Superior de Investigaciones Cientificas (CSIC), Apartado 419, 18080 Granada, Spain
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Lodeyro AF, Krapp AR, Carrillo N. Photosynthesis and chloroplast redox signaling in the age of global warming: stress tolerance, acclimation, and developmental plasticity. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5919-5937. [PMID: 34111246 DOI: 10.1093/jxb/erab270] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Contemporary climate change is characterized by the increased intensity and frequency of environmental stress events such as floods, droughts, and heatwaves, which have a debilitating impact on photosynthesis and growth, compromising the production of food, feed, and biofuels for an expanding population. The need to increase crop productivity in the context of global warming has fueled attempts to improve several key plant features such as photosynthetic performance, assimilate partitioning, and tolerance to environmental stresses. Chloroplast redox metabolism, including photosynthetic electron transport and CO2 reductive assimilation, are primary targets of most stress conditions, leading to excessive excitation pressure, photodamage, and propagation of reactive oxygen species. Alterations in chloroplast redox poise, in turn, provide signals that exit the plastid and modulate plant responses to the environmental conditions. Understanding the molecular mechanisms involved in these processes could provide novel tools to increase crop yield in suboptimal environments. We describe herein various interventions into chloroplast redox networks that resulted in increased tolerance to multiple sources of environmental stress. They included manipulation of endogenous components and introduction of electron carriers from other organisms, which affected not only stress endurance but also leaf size and longevity. The resulting scenario indicates that chloroplast redox pathways have an important impact on plant growth, development, and defense that goes beyond their roles in primary metabolism. Manipulation of these processes provides additional strategies for the design of crops with improved performance under destabilized climate conditions as foreseen for the future.
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Affiliation(s)
- Anabella F Lodeyro
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Adriana R Krapp
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Néstor Carrillo
- Instituto de Biología Molecular y Celular de Rosario (IBR-UNR/CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario (UNR), Rosario, Argentina
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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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Li X, Liao M, Huang J, Xu Z, Lin Z, Ye N, Zhang Z, Peng X. Glycolate oxidase-dependent H 2O 2 production regulates IAA biosynthesis in rice. BMC PLANT BIOLOGY 2021; 21:326. [PMID: 34229625 PMCID: PMC8261990 DOI: 10.1186/s12870-021-03112-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/28/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Glycolate oxidase (GLO) is not only a key enzyme in photorespiration but also a major engine for H2O2 production in plants. Catalase (CAT)-dependent H2O2 decomposition has been previously reported to be involved in the regulation of IAA biosynthesis. However, it is still not known which mechanism contributed to the H2O2 production in IAA regulation. RESULTS In this study, we found that in glo mutants of rice, as H2O2 levels decreased IAA contents significantly increased, whereas high CO2 abolished the difference in H2O2 and IAA contents between glo mutants and WT. Further analyses showed that tryptophan (Trp, the precursor for IAA biosynthesis in the Trp-dependent biosynthetic pathway) also accumulated due to increased tryptophan synthetase β (TSB) activity. Moreover, expression of the genes involved in Trp-dependent IAA biosynthesis and IBA to IAA conversion were correspondingly up-regulated, further implicating that both pathways contribute to IAA biosynthesis as mediated by the GLO-dependent production of H2O2. CONCLUSION We investigated the function of GLO in IAA signaling in different levels from transcription, enzyme activities to metabolic levels. The results suggest that GLO-dependent H2O2 signaling, essentially via photorespiration, confers regulation over IAA biosynthesis in rice plants.
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Mengmeng Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Jiayu Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Zheng Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Zhanqiao Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
| | - Nenghui Ye
- College of Agronomy, Hunan Agricultural University, No.1, Nongda Road, Changsha, 410128, China
| | - Zhisheng Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China.
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China.
| | - Xinxiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, No.483, Wushan Road, 510642, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, South China Agricultural University, No.483, Wushan Road, Guangzhou, 510642, China
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Investigating the Drought and Salinity Effect on the Redox Components of Sulla Coronaria (L.) Medik. Antioxidants (Basel) 2021; 10:antiox10071048. [PMID: 34209774 PMCID: PMC8300714 DOI: 10.3390/antiox10071048] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 12/21/2022] Open
Abstract
For the Mediterranean region, climate models predict an acceleration of desertification processes, thus threatening agriculture. The present work aimed to investigate the effect of drought and salinity on Sulla coronaria (L.) Medik., a Mediterranean forage legume, for understanding plant defence systems activated by these stressors. In detail, we focused our attention on the variations on the plant redox status. Plants were subjected to suboptimal watering and irrigation with sodium chloride (NaCl) solutions. The same salt treatment was applied for in vitro tests on seedlings. Water content did not change after treatments. Salt negatively influenced seed germination and seedling development, but it did not affect photosynthesis parameters, contrary to what was observed in adult plants. Proline concentration increased in all samples, while abscisic acid level increased exclusively in seedlings. NaCl caused accumulation of superoxide anion in plants and seedlings and hydrogen peroxide only in seedlings; nevertheless, lipid peroxidation was not detected. Total phenolics, glutathione, expression level, and activity of antioxidant enzymes were assayed, revealing a complex antiradical molecular response, depending on the type of stress and development stage. Our results confirm Sulla as a drought- and salt-tolerant species and highlight its ability to counteract oxidative stress. This evidence suggests a key role for the redox components, as signal transduction messengers, in Sulla acclimation to desertification. Finally, plants and seedlings showed different acclimation capacity to salinity, revealing a greater genomic plasticity for seedlings.
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Sandalio LM, Peláez-Vico MA, Molina-Moya E, Romero-Puertas MC. Peroxisomes as redox-signaling nodes in intracellular communication and stress responses. PLANT PHYSIOLOGY 2021; 186:22-35. [PMID: 33587125 PMCID: PMC8154099 DOI: 10.1093/plphys/kiab060] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/22/2021] [Indexed: 05/05/2023]
Abstract
Peroxisomes are redox nodes playing a diverse range of roles in cell functionality and in the perception of and responses to changes in their environment.
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Affiliation(s)
- Luisa M Sandalio
- Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín-CSIC, Profesor Albareda 1, 18008 Granada, Spain
- Author for communication:
| | - Maria Angeles Peláez-Vico
- Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín-CSIC, Profesor Albareda 1, 18008 Granada, Spain
| | - Eliana Molina-Moya
- Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín-CSIC, Profesor Albareda 1, 18008 Granada, Spain
| | - Maria C Romero-Puertas
- Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín-CSIC, Profesor Albareda 1, 18008 Granada, Spain
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Ugalde JM, Fuchs P, Nietzel T, Cutolo EA, Homagk M, Vothknecht UC, Holuigue L, Schwarzländer M, Müller-Schüssele SJ, Meyer AJ. Chloroplast-derived photo-oxidative stress causes changes in H2O2 and EGSH in other subcellular compartments. PLANT PHYSIOLOGY 2021; 186:125-141. [PMID: 33793922 PMCID: PMC8154069 DOI: 10.1093/plphys/kiaa095] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 12/03/2020] [Indexed: 05/19/2023]
Abstract
Metabolic fluctuations in chloroplasts and mitochondria can trigger retrograde signals to modify nuclear gene expression. Mobile signals likely to be involved are reactive oxygen species (ROS), which can operate protein redox switches by oxidation of specific cysteine residues. Redox buffers, such as the highly reduced glutathione pool, serve as reservoirs of reducing power for several ROS-scavenging and ROS-induced damage repair pathways. Formation of glutathione disulfide and a shift of the glutathione redox potential (EGSH) toward less negative values is considered as hallmark of several stress conditions. Here we used the herbicide methyl viologen (MV) to generate ROS locally in chloroplasts of intact Arabidopsis (Arabidopsis thaliana) seedlings and recorded dynamic changes in EGSH and H2O2 levels with the genetically encoded biosensors Grx1-roGFP2 (for EGSH) and roGFP2-Orp1 (for H2O2) targeted to chloroplasts, the cytosol, or mitochondria. Treatment of seedlings with MV caused rapid oxidation in chloroplasts and, subsequently, in the cytosol and mitochondria. MV-induced oxidation was significantly boosted by illumination with actinic light, and largely abolished by inhibitors of photosynthetic electron transport. MV also induced autonomous oxidation in the mitochondrial matrix in an electron transport chain activity-dependent manner that was milder than the oxidation triggered in chloroplasts by the combination of MV and light. In vivo redox biosensing resolves the spatiotemporal dynamics of compartmental responses to local ROS generation and provides a basis for understanding how compartment-specific redox dynamics might operate in retrograde signaling and stress acclimation in plants.
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Affiliation(s)
- José Manuel Ugalde
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, D-53113 Bonn, Germany
| | - Philippe Fuchs
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, D-53113 Bonn, Germany
- Institute of Plant Biology and Biotechnology, University of Münster, D-48143 Münster, Germany
| | - Thomas Nietzel
- Institute of Plant Biology and Biotechnology, University of Münster, D-48143 Münster, Germany
| | - Edoardo A Cutolo
- Institute of Cellular and Molecular Botany (IZMB), University of Bonn, D-53115 Bonn, Germany
| | - Maria Homagk
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, D-53113 Bonn, Germany
| | - Ute C Vothknecht
- Institute of Cellular and Molecular Botany (IZMB), University of Bonn, D-53115 Bonn, Germany
| | - Loreto Holuigue
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Markus Schwarzländer
- Institute of Plant Biology and Biotechnology, University of Münster, D-48143 Münster, Germany
| | | | - Andreas J Meyer
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, D-53113 Bonn, Germany
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Frerigmann H, Piotrowski M, Lemke R, Bednarek P, Schulze-Lefert P. A Network of Phosphate Starvation and Immune-Related Signaling and Metabolic Pathways Controls the Interaction between Arabidopsis thaliana and the Beneficial Fungus Colletotrichum tofieldiae. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2021; 34:560-570. [PMID: 33226310 DOI: 10.1094/mpmi-08-20-0233-r] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The beneficial root-colonizing fungus Colletotrichum tofieldiae mediates plant growth promotion (PGP) upon phosphate (Pi) starvation in Arabidopsis thaliana. This activity is dependent on the Trp metabolism of the host, including indole glucosinolate (IG) hydrolysis. Here, we show that C. tofieldiae resolves several Pi starvation-induced molecular processes in the host, one of which is the downregulation of auxin signaling in germ-free plants, which is restored in the presence of the fungus. Using CRISPR/Cas9 genome editing, we generated an Arabidopsis triple mutant lacking three homologous nitrilases (NIT1 to NIT3) that are thought to link IG-hydrolysis products with auxin biosynthesis. Retained C. tofieldiae-induced PGP in nit1/2/3 mutant plants demonstrated that this metabolic connection is dispensable for the beneficial activity of the fungus. This suggests that either there is an alternative metabolic link between IG-hydrolysis products and auxin biosynthesis, or C. tofieldiae restores auxin signaling independently of IG metabolism. We show that C. tofieldiae, similar to pathogenic microorganisms, triggers Arabidopsis immune pathways that rely on IG metabolism as well as salicylic acid and ethylene signaling. Analysis of IG-deficient myb mutants revealed that these metabolites are, indeed, important for control of in planta C. tofieldiae growth: however, enhanced C. tofieldiae biomass does not necessarily negatively correlate with PGP. We show that Pi deficiency enables more efficient colonization of Arabidopsis by C. tofieldiae, possibly due to the MYC2-mediated repression of ethylene signaling and changes in the constitutive IG composition in roots.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Henning Frerigmann
- Max Planck Institute for Plant Breeding Research, Department of Plant Microbe Interactions and Cluster of Excellence on Plant Sciences (CEPLAS), D-50829 Cologne, Germany
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznań, Poland
| | - Markus Piotrowski
- Lehrstuhl für Molekulargenetik und Physiologie der Pflanzen, Ruhr-Universität Bochum, D-44801 Bochum, Germany
| | - René Lemke
- Lehrstuhl für Molekulargenetik und Physiologie der Pflanzen, Ruhr-Universität Bochum, D-44801 Bochum, Germany
| | - Paweł Bednarek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznań, Poland
| | - Paul Schulze-Lefert
- Max Planck Institute for Plant Breeding Research, Department of Plant Microbe Interactions and Cluster of Excellence on Plant Sciences (CEPLAS), D-50829 Cologne, Germany
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von der Mark C, Ivanov R, Eutebach M, Maurino VG, Bauer P, Brumbarova T. Reactive oxygen species coordinate the transcriptional responses to iron availability in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2181-2195. [PMID: 33159788 PMCID: PMC7966954 DOI: 10.1093/jxb/eraa522] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 11/01/2020] [Indexed: 05/05/2023]
Abstract
Reactive oxygen species play a central role in the regulation of plant responses to environmental stress. Under prolonged iron (Fe) deficiency, increased levels of hydrogen peroxide (H2O2) initiate signaling events, resulting in the attenuation of Fe acquisition through the inhibition of FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR (FIT). As this H2O2 increase occurs in a FIT-dependent manner, our aim was to understand the processes involved in maintaining H2O2 levels under prolonged Fe deficiency and the role of FIT. We identified the CAT2 gene, encoding one of the three Arabidopsis catalase isoforms, as regulated by FIT. CAT2 loss-of-function plants displayed severe susceptibility to Fe deficiency and greatly increased H2O2 levels in roots. Analysis of the Fe homeostasis transcription cascade revealed that H2O2 influences the gene expression of downstream regulators FIT, BHLH genes of group Ib, and POPEYE (PYE); however, H2O2 did not affect their upstream regulators, such as BHLH104 and ILR3. Our data shows that FIT and CAT2 participate in a regulatory loop between H2O2 and prolonged Fe deficiency.
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Affiliation(s)
- Claudia von der Mark
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
- Group of Plant Vascular Development, Swiss Federal Institute of Technology (ETH) Zurich, CH-8092 Zurich, Switzerland
| | - Rumen Ivanov
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Monique Eutebach
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
| | - Veronica G Maurino
- Department of Molecular Plant Physiology, Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Kirschalle 1, D-53115 Bonn, Germany
| | - Petra Bauer
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
- Cluster of Excellence on Plant Science (CEPLAS), Heinrich Heine University, D-40225 Düsseldorf, Germany
- Correspondence: or
| | - Tzvetina Brumbarova
- Institute of Botany, Heinrich Heine University, Universitätsstr. 1, D-40225 Düsseldorf, Germany
- Correspondence: or
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Biddau M, Santha Kumar TR, Henrich P, Laine LM, Blackburn GJ, Chokkathukalam A, Li T, Lee Sim K, King L, Hoffman SL, Barrett MP, Coombs GH, McFadden GI, Fidock DA, Müller S, Sheiner L. Plasmodium falciparum LipB mutants display altered redox and carbon metabolism in asexual stages and cannot complete sporogony in Anopheles mosquitoes. Int J Parasitol 2021; 51:441-453. [PMID: 33713652 PMCID: PMC8126644 DOI: 10.1016/j.ijpara.2020.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 11/06/2022]
Abstract
Apicoplast LipB deletion leads to changed antioxidant expression that precedes and coincides with accelerated differentiation. 3D7 Plasmodium exhibits changes in glycolysis and tricarboxylic acid cycle activity after deletion of apicoplast LipB. When LipB is deleted from NF54 Plasmodium, the resulting parasites cannot complete their development in mosquitoes.
Malaria is still one of the most important global infectious diseases. Emergence of drug resistance and a shortage of new efficient antimalarials continue to hamper a malaria eradication agenda. Malaria parasites are highly sensitive to changes in the redox environment. Understanding the mechanisms regulating parasite redox could contribute to the design of new drugs. Malaria parasites have a complex network of redox regulatory systems housed in their cytosol, in their mitochondrion and in their plastid (apicoplast). While the roles of enzymes of the thioredoxin and glutathione pathways in parasite survival have been explored, the antioxidant role of α-lipoic acid (LA) produced in the apicoplast has not been tested. To take a first step in teasing a putative role of LA in redox regulation, we analysed a mutant Plasmodium falciparum (3D7 strain) lacking the apicoplast lipoic acid protein ligase B (lipB) known to be depleted of LA. Our results showed a change in expression of redox regulators in the apicoplast and the cytosol. We further detected a change in parasite central carbon metabolism, with lipB deletion resulting in changes to glycolysis and tricarboxylic acid cycle activity. Further, in another Plasmodium cell line (NF54), deletion of lipB impacted development in the mosquito, preventing the detection of infectious sporozoite stages. While it is not clear at this point if the observed phenotypes are linked, these findings flag LA biosynthesis as an important subject for further study in the context of redox regulation in asexual stages, and point to LipB as a potential target for the development of new transmission drugs.
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Affiliation(s)
- Marco Biddau
- Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, United Kingdom; Department of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.
| | - T R Santha Kumar
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Philipp Henrich
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Larissa M Laine
- Department of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Gavin J Blackburn
- Glasgow Polyomics, Wolfson Wohl Cancer Research Centre, University of Glasgow, Glasgow, United Kingdom
| | | | - Tao Li
- Sanaria Inc., Rockville, MD 20850, USA
| | | | - Lewis King
- Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, United Kingdom
| | | | - Michael P Barrett
- Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, United Kingdom; Glasgow Polyomics, Wolfson Wohl Cancer Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Graham H Coombs
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | | | - David A Fidock
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY 10032, USA; Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Sylke Müller
- Department of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Lilach Sheiner
- Wellcome Centre for Integrative Parasitology, University of Glasgow, Glasgow, United Kingdom; Department of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.
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Changes in the Plant β-Sitosterol/Stigmasterol Ratio Caused by the Plant Parasitic Nematode Meloidogyne incognita. PLANTS 2021; 10:plants10020292. [PMID: 33557005 PMCID: PMC7913658 DOI: 10.3390/plants10020292] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 11/17/2022]
Abstract
Sterols play a key role in various physiological processes of plants. Commonly, stigmasterol, β-sitosterol and campesterol represent the main plant sterols, and cholesterol is often reported as a trace sterol. Changes in plant sterols, especially in β-sitosterol/stigmasterol levels, can be induced by different biotic and abiotic factors. Plant parasitic nematodes, such as the root-knot nematode Meloidogyne incognita, are devastating pathogens known to circumvent plant defense mechanisms. In this study, we investigated the changes in sterols of agricultural important crops, Brassica juncea (brown mustard), Cucumis sativus (cucumber), Glycine max (soybean), Solanum lycopersicum (tomato) and Zea mays (corn), 21 days post inoculation (dpi) with M. incognita. The main changes affected the β-sitosterol/stigmasterol ratio, with an increase of β-sitosterol and a decrease of stigmasterol in S. lycopersicum, G. max, C. sativus and Z. mays. Furthermore, cholesterol levels increased in tomato, cucumber and corn, while cholesterol levels often were below the detection limit in the respective uninfected plants. To better understand the changes in the β-sitosterol/stigmasterol ratio, gene expression analysis was conducted in tomato cv. Moneymaker for the sterol 22C-desaturase gene CYP710A11, responsible for the conversion of β-sitosterol to stigmasterol. Our results showed that the expression of CYP710A11 was in line with the sterol profile of tomato after M. incognita infection. Since sterols play a key role in plant-pathogen interactions, this finding opens novel insights in plant nematode interactions.
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Goggin FL, Fischer HD. Reactive Oxygen Species in Plant Interactions With Aphids. FRONTIERS IN PLANT SCIENCE 2021; 12:811105. [PMID: 35251065 PMCID: PMC8888880 DOI: 10.3389/fpls.2021.811105] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/15/2021] [Indexed: 05/17/2023]
Abstract
Reactive oxygen species (ROS) such as hydrogen peroxide and superoxide are produced in plants in response to many biotic and abiotic stressors, and they can enhance stress adaptation in certain circumstances or mediate symptom development in others. The roles of ROS in plant-pathogen interactions have been extensively studied, but far less is known about their involvement in plant-insect interactions. A growing body of evidence, however, indicates that ROS accumulate in response to aphids, an economically damaging group of phloem-feeding insects. This review will cover the current state of knowledge about when, where, and how ROS accumulate in response to aphids, which salivary effectors modify ROS levels in plants, and how microbial associates influence ROS induction by aphids. We will also explore the potential adaptive significance of intra- and extracellular oxidative responses to aphid infestation in compatible and incompatible interactions and highlight knowledge gaps that deserve further exploration.
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48
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Kuźniak E, Kopczewski T. The Chloroplast Reactive Oxygen Species-Redox System in Plant Immunity and Disease. FRONTIERS IN PLANT SCIENCE 2020; 11:572686. [PMID: 33281842 PMCID: PMC7688986 DOI: 10.3389/fpls.2020.572686] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/27/2020] [Indexed: 05/29/2023]
Abstract
Pathogen infections limit plant growth and productivity, thus contributing to crop losses. As the site of photosynthesis, the chloroplast is vital for plant productivity. This organelle, communicating with other cellular compartments challenged by infection (e.g., apoplast, mitochondria, and peroxisomes), is also a key battlefield in the plant-pathogen interaction. Here, we focus on the relation between reactive oxygen species (ROS)-redox signaling, photosynthesis which is governed by redox control, and biotic stress response. We also discuss the pathogen strategies to weaken the chloroplast-mediated defense responses and to promote pathogenesis. As in the next decades crop yield increase may depend on the improvement of photosynthetic efficiency, a comprehensive understanding of the integration between photosynthesis and plant immunity is required to meet the future food demand.
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Agati G, Brunetti C, Fini A, Gori A, Guidi L, Landi M, Sebastiani F, Tattini M. Are Flavonoids Effective Antioxidants in Plants? Twenty Years of Our Investigation. Antioxidants (Basel) 2020; 9:E1098. [PMID: 33182252 PMCID: PMC7695271 DOI: 10.3390/antiox9111098] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Whether flavonoids play significant antioxidant roles in plants challenged by photooxidative stress of different origin has been largely debated over the last few decades. A critical review of the pertinent literature and our experimentation as well, based on a free-of-scale approach, support an important antioxidant function served by flavonoids in plants exposed to a wide range of environmental stressors, the significance of which increases with the severity of stress. On the other side, some questions need conclusive answers when the putative antioxidant functions of plant flavonoids are examined at the level of both the whole-cell and cellular organelles. This partly depends upon a conclusive, robust, and unbiased definition of "a plant antioxidant", which is still missing, and the need of considering the subcellular re-organization that occurs in plant cells in response to severe stress conditions. This likely makes our deterministic-based approach unsuitable to unveil the relevance of flavonoids as antioxidants in extremely complex biological systems, such as a plant cell exposed to an ever-changing stressful environment. This still poses open questions about how to measure the occurred antioxidant action of flavonoids. Our reasoning also evidences the need of contemporarily evaluating the changes in key primary and secondary components of the antioxidant defense network imposed by stress events of increasing severity to properly estimate the relevance of the antioxidant functions of flavonoids in an in planta situation. In turn, this calls for an in-depth analysis of the sub-cellular distribution of primary and secondary antioxidants to solve this still intricate matter.
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Affiliation(s)
- Giovanni Agati
- Institute of Applied Physics ‘Carrara’, National Research Council of Italy (CNR), Via Madonna del Piano 10, Sesto F.no, I-50019 Florence, Italy;
| | - Cecilia Brunetti
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
| | - Alessio Fini
- Department of Agriculural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, Via Celoria 2, I-20133 Milan, Italy;
| | - Antonella Gori
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Viale delle Idee 30, Sesto F.no, I-50019 Florence, Italy;
| | - Lucia Guidi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy; (L.G.); (M.L.)
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy; (L.G.); (M.L.)
| | - Federico Sebastiani
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
| | - Massimiliano Tattini
- Institute for Sustainable Plant Protection, National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019, Sesto F.no, Florence, Italy; (C.B.); (F.S.)
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Boulc'h PN, Caullireau E, Faucher E, Gouerou M, Guérin A, Miray R, Couée I. Abiotic stress signalling in extremophile land plants. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5771-5785. [PMID: 32687568 DOI: 10.1093/jxb/eraa336] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Plant life relies on complex arrays of environmental stress sensing and signalling mechanisms. Extremophile plants develop and grow in harsh environments with extremes of cold, heat, drought, desiccation, or salinity, which have resulted in original adaptations. In accordance with their polyphyletic origins, extremophile plants likely possess core mechanisms of plant abiotic stress signalling. However, novel properties or regulations may have emerged in the context of extremophile adaptations. Comparative omics of extremophile genetic models, such as Arabidopsis lyrata, Craterostigma plantagineum, Eutrema salsugineum, and Physcomitrella patens, reveal diverse strategies of sensing and signalling that lead to a general improvement in abiotic stress responses. Current research points to putative differences of sensing and emphasizes significant modifications of regulatory mechanisms, at the level of secondary messengers (Ca2+, phospholipids, reactive oxygen species), signal transduction (intracellular sensors, protein kinases, transcription factors, ubiquitin-mediated proteolysis) or signalling crosstalk. Involvement of hormone signalling, especially ABA signalling, cell homeostasis surveillance, and epigenetic mechanisms, also shows that large-scale gene regulation, whole-plant integration, and probably stress memory are important features of adaptation to extreme conditions. This evolutionary and functional plasticity of signalling systems in extremophile plants may have important implications for plant biotechnology, crop improvement, and ecological risk assessment under conditions of climate change.
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Affiliation(s)
- Pierre-Nicolas Boulc'h
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Emma Caullireau
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Elvina Faucher
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Maverick Gouerou
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
- University of Rennes 1, CNRS, ECOBIO (Ecosystems-Biodiversity-Evolution) - UMR, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Amandine Guérin
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Romane Miray
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
| | - Ivan Couée
- University of Rennes 1, Department of Life Sciences and Environment, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
- University of Rennes 1, CNRS, ECOBIO (Ecosystems-Biodiversity-Evolution) - UMR, Campus de Beaulieu, avenue du Général Leclerc, Rennes, France
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