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Li S, Yin Y, Chen J, Cui X, Fu J. H 2O 2 promotes trimming-induced tillering by regulating energy supply and redox status in bermudagrass. PeerJ 2024; 12:e16985. [PMID: 38436009 PMCID: PMC10909351 DOI: 10.7717/peerj.16985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
Tillering/branching pattern plays a significant role in determining the structure and diversity of grass, and trimming has been found to induce tillering in turfgrass. Recently, it has been reported that hydrogen peroxide (H2O2) regulates axillary bud development. However, the role of H2O2 in trimming-induced tillering in bermudagrass, a kind of turfgrass, remains unclear. Our study unveils the significant impact of trimming on promoting the sprouting and growth of tiller buds in stolon nodes, along with an increase in the number of tillers in the main stem. This effect is accompanied by spatial-temporal changes in cytokinin and sucrose content, as well as relevant gene expression in axillary buds. In addition, the partial trimming of new-born tillers results in an increase in sucrose and starch reserves in their leaves, which can be attributed to the enhanced photosynthesis capacity. Importantly, trimming promotes a rapid H2O2 burst in the leaves of new-born tillers and axillary stolon buds. Furthermore, exogenous application of H2O2 significantly increases the number of tillers after trimming by affecting the expression of cytokinin-related genes, bolstering photosynthesis potential, energy reserves and antioxidant enzyme activity. Taken together, these results indicate that both endogenous production and exogenous addition of H2O2 enhance the inductive effects of trimming on the tillering process in bermudagrass, thus helping boost energy supply and maintain the redox state in newly formed tillers.
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Affiliation(s)
- Shuang Li
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, China
| | - Yanling Yin
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, China
| | - Jianmin Chen
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, China
| | - Xinyu Cui
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, China
| | - Jinmin Fu
- Coastal Salinity Tolerant Grass Engineering and Technology Research Center, Ludong University, Yantai, China
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2
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Wu P, Li B, Liu Y, Bian Z, Xiong J, Wang Y, Zhu B. Multiple Physiological and Biochemical Functions of Ascorbic Acid in Plant Growth, Development, and Abiotic Stress Response. Int J Mol Sci 2024; 25:1832. [PMID: 38339111 PMCID: PMC10855474 DOI: 10.3390/ijms25031832] [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: 12/04/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/12/2024] Open
Abstract
Ascorbic acid (AsA) is an important nutrient for human health and disease cures, and it is also a crucial indicator for the quality of fruit and vegetables. As a reductant, AsA plays a pivotal role in maintaining the intracellular redox balance throughout all the stages of plant growth and development, fruit ripening, and abiotic stress responses. In recent years, the de novo synthesis and regulation at the transcriptional level and post-transcriptional level of AsA in plants have been studied relatively thoroughly. However, a comprehensive and systematic summary about AsA-involved biochemical pathways, as well as AsA's physiological functions in plants, is still lacking. In this review, we summarize and discuss the multiple physiological and biochemical functions of AsA in plants, including its involvement as a cofactor, substrate, antioxidant, and pro-oxidant. This review will help to facilitate a better understanding of the multiple functions of AsA in plant cells, as well as provide information on how to utilize AsA more efficiently by using modern molecular biology methods.
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Affiliation(s)
- Peiwen Wu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
| | - Bowen Li
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
| | - Ye Liu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
| | - Zheng Bian
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
| | - Jiaxin Xiong
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
| | - Yunxiang Wang
- Institute of Agri-Food Processing and Nutrition, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
| | - Benzhong Zhu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (P.W.); (B.L.); (Y.L.); (Z.B.); (J.X.)
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Mehrian SK, Karimi N, Rahmani F. 24-Epibrassinolide alleviates diazinon oxidative damage by escalating activities of antioxidant defense systems in maize plants. Sci Rep 2023; 13:19631. [PMID: 37949961 PMCID: PMC10638446 DOI: 10.1038/s41598-023-46764-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Abstract
Excessive use of pesticides against pests has contaminated agricultural crops and raised global concerns about food safety. This research investigates the alleviation effects of 24-epibrassinolide (EBL) seed priming on diazinon (DZ) pesticide toxicity. The experiment was conducted with eight groups including control, DZ, EBL (10 µM), EBL (0.1 µM), EBL (0.01 µM), EBL (10 µM) + DZ, EBL (0.1 µM) + DZ, and EBL (0.01 µM) + DZ. Plants grown with the lowest concentration of EBL (0.01 µM) exhibited an upward increase in the activity of SOD, CAT, POD, APX, GR, and GST enzymes under DZ toxicity stress. In contrast, higher concentrations of EBL showed some inhibitory effects on the activity of antioxidant enzymes. In addition, low concentrations of EBL elevated the free radical scavenging capacity (DPPH), iron-reducing antioxidant power (FRAP), photosynthesis rate (Pn), stomatal conductance (Gs) and proline, and protein contents. EBL also reduced lipid peroxidation (MDA levels) in the DZ-exposed plants, leading to membrane integrity. The favorable effects of EBL were more evident when plants were exposed to pesticides than normal growth conditions. The results indicated that EBL seed priming intensifies the antioxidant enzymes system activity, and helps maize plants against toxic effects of DZ under proper concentration.
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Affiliation(s)
- Saeed Karami Mehrian
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
| | - Nasser Karimi
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran.
| | - Fatemeh Rahmani
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran.
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4
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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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Considine MJ, Foyer CH. Metabolic regulation of quiescence in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:1132-1148. [PMID: 36994639 PMCID: PMC10952390 DOI: 10.1111/tpj.16216] [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: 12/22/2022] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 05/31/2023]
Abstract
Quiescence is a crucial survival attribute in which cell division is repressed in a reversible manner. Although quiescence has long been viewed as an inactive state, recent studies have shown that it is an actively monitored process that is influenced by environmental stimuli. Here, we provide a perspective of the quiescent state and discuss how this process is tuned by energy, nutrient and oxygen status, and the pathways that sense and transmit these signals. We not only highlight the governance of canonical regulators and signalling mechanisms that respond to changes in nutrient and energy status, but also consider the central significance of mitochondrial functions and cues as key regulators of nuclear gene expression. Furthermore, we discuss how reactive oxygen species and the associated redox processes, which are intrinsically linked to energy carbohydrate metabolism, also play a key role in the orchestration of quiescence.
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Affiliation(s)
- Michael J. Considine
- The UWA Institute of Agriculture and the School of Molecular SciencesThe University of Western AustraliaPerthWestern Australia6009Australia
- The Department of Primary Industries and Regional DevelopmentPerthWestern Australia6000Australia
| | - Christine H. Foyer
- School of Biosciences, College of Life and Environmental SciencesUniversity of BirminghamEdgbastonB15 2TTUK
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6
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Porcher A, Girard S, Bonnet P, Rouveure R, Guérin V, Paladian F, Vian A. Non thermal 2.45 GHz electromagnetic exposure causes rapid changes in Arabidopsis thaliana metabolism. JOURNAL OF PLANT PHYSIOLOGY 2023; 286:153999. [PMID: 37210775 DOI: 10.1016/j.jplph.2023.153999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/13/2023] [Accepted: 04/28/2023] [Indexed: 05/23/2023]
Abstract
Numerous studies report different types of responses following exposure of plants to high frequency electromagnetic fields (HF-EMF). While this phenomenon is related to tissue heating in animals, the situation is much less straightforward in plants where metabolic changes seem to occur without tissue temperature increase. We have set up an exposure system allowing reliable measurements of tissue heating (using a reflectometric probe and thermal imaging) after a long exposure (30 min) to an electromagnetic field of 2.45 GHz transmitted through a horn antenna (about 100 V m-1 at the plant level). We did not observe any heating of the tissues, but we detected rapid increases (60 min) in the accumulation of transcripts of stress-related genes (TCH1 and ZAT12 transcription factor) or involved in ROS metabolism (RBOHF and APX1). At the same time, the amounts of hydrogen peroxide and dehydroascorbic acid increased while glutathione (reduced and oxidized forms), ascorbic acid, and lipid peroxidation remained stable. Therefore, our results unambiguously show that molecular and biochemical responses occur rapidly (within 60min) in plants after exposure to an electromagnetic field, in absence of tissue heating.
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Affiliation(s)
- Alexis Porcher
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000, Clermont-Ferrand, France
| | - Sébastien Girard
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000, Clermont-Ferrand, France
| | - Pierre Bonnet
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000, Clermont-Ferrand, France
| | - Raphaël Rouveure
- INRAE Clermont Clermont Auvergne University, INRAE, UR TSCF, F-63000, Clermont-Ferrand, France
| | - Vincent Guérin
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Françoise Paladian
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000, Clermont-Ferrand, France
| | - Alain Vian
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France.
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7
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Porcher A, Guérin V, Macherel D, Lebrec A, Satour P, Lothier J, Vian A. High Expression of ALTERNATIVE OXIDASE 2 in Latent Axillary Buds Suggests Its Key Role in Quiescence Maintenance in Rosebush. PLANT & CELL PHYSIOLOGY 2023; 64:165-175. [PMID: 36287074 DOI: 10.1093/pcp/pcac153] [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: 04/27/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Most vegetative axes remain quiescent as dormant axillary buds until metabolic and hormonal signals, driven by environmental changes, trigger bud outgrowth. While the resumption of growth activity is well documented, the establishment and maintenance of quiescence is comparatively poorly understood, despite its major importance in the adaptation of plants to the seasonal cycle or in the establishment of their shape. Here, using the rosebush Rosa hybrida 'Radrazz' as a plant model, we highlighted that the quiescent state was the consequence of an internal and active energy control of buds, under the influence of hormonal factors previously identified in the bud outgrowth process. We found that the quiescent state in the non-growing vegetative axis of dormant axillary buds displayed a low energy state along with a high expression of the ALTERNATIVE OXIDASE 2 (AOX2) and the accumulation of the corresponding protein. Conversely, AOX2 expression and protein amount strongly decreased during bud burst as energy status shifted to a high state, allowing growth. Since AOX2 can deviate electrons from the cytochrome pathway in the mitochondrial respiratory chain, it could drastically reduce the formation of ATP, which would result in a low energy status unfavorable for growth activities. We provide evidence that the presence/absence of AOX2 in quiescent/growing vegetative axes of buds was under hormonal control and thus may constitute the mechanistic basis of both quiescence and sink strength manifestation, two important aspects of budbreak.
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Affiliation(s)
- Alexis Porcher
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - Vincent Guérin
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - David Macherel
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - Anita Lebrec
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - Pascale Satour
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - Jérémy Lothier
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
| | - Alain Vian
- Institut Agro Rennes-Angers, INRAE, IRHS, SFR QUASAV, University of Angers, 42 Rue Georges Morel, Angers 49000, France
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8
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Zhao Y, Hou Z, Zhang N, Ji H, Dong C, Yu J, Chen X, Chen C, Guo H. Application of proteomics to determine the mechanism of ozone on sweet cherries ( Prunus avium L.) by time-series analysis. FRONTIERS IN PLANT SCIENCE 2023; 14:1065465. [PMID: 36844069 PMCID: PMC9948404 DOI: 10.3389/fpls.2023.1065465] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
This research investigated the mechanism of ozone treatment on sweet cherry (Prunus avium L.) by Lable-free quantification proteomics and physiological traits. The results showed that 4557 master proteins were identified in all the samples, and 3149 proteins were common to all groups. Mfuzz analyses revealed 3149 candidate proteins. KEGG annotation and enrichment analysis showed proteins related to carbohydrate and energy metabolism, protein, amino acids, and nucleotide sugar biosynthesis and degradation, and fruit parameters were characterized and quantified. The conclusions were supported by the fact that the qRT-PCR results agreed with the proteomics results. For the first time, this study reveals the mechanism of cherry in response to ozone treatment at a proteome level.
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Affiliation(s)
- Yuehan Zhao
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
| | - Zhaohua Hou
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Na Zhang
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
| | - Haipeng Ji
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Chenghu Dong
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
| | - Jinze Yu
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
| | - Xueling Chen
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Cunkun Chen
- Institute of Agricultural Products Preservation and Processing Technology (National Engineering Technology Research Center for Preservation of Agriculture Product), Tianjin Academy of Agricultural Sciences, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of the People’s Republic of China, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Tianjin, China
| | - Honglian Guo
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
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Jiang Z, Wang M, Nicolas M, Ogé L, Pérez-Garcia MD, Crespel L, Li G, Ding Y, Le Gourrierec J, Grappin P, Sakr S. Glucose-6-Phosphate Dehydrogenases: The Hidden Players of Plant Physiology. Int J Mol Sci 2022; 23:16128. [PMID: 36555768 PMCID: PMC9785579 DOI: 10.3390/ijms232416128] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Glucose-6-phosphate dehydrogenase (G6PDH) catalyzes a metabolic hub between glycolysis and the pentose phosphate pathway (PPP), which is the oxidation of glucose-6-phosphate (G6P) to 6-phosphogluconolactone concomitantly with the production of nicotinamide adenine dinucleotide phosphate (NADPH), a reducing power. It is considered to be the rate-limiting step that governs carbon flow through the oxidative pentose phosphate pathway (OPPP). The OPPP is the main supplier of reductant (NADPH) for several "reducing" biosynthetic reactions. Although it is involved in multiple physiological processes, current knowledge on its exact role and regulation is still piecemeal. The present review provides a concise and comprehensive picture of the diversity of plant G6PDHs and their role in seed germination, nitrogen assimilation, plant branching, and plant response to abiotic stress. This work will help define future research directions to improve our knowledge of G6PDHs in plant physiology and to integrate this hidden player in plant performance.
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Affiliation(s)
- Zhengrong Jiang
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
| | - Ming Wang
- Dryland-Technology Key Laboratory of Shandong Province, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Michael Nicolas
- Plant Molecular Genetics Department, Centro Nacional de Biotecnología-CSIC, Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Laurent Ogé
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | | | - Laurent Crespel
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Ganghua Li
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanfeng Ding
- College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
| | - José Le Gourrierec
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Philippe Grappin
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
| | - Soulaiman Sakr
- Institut Agro, University of Angers, INRAE, IRHS, SFR QUASAV, 49000 Angers, France
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Upadhyaya C, Upadhyaya T, Patel I. Attributes of non-ionizing radiation of 1800 MHz frequency on plant health and antioxidant content of Tomato (Solanum Lycopersicum) plants. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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The BES1/BZR1-family transcription factor MpBES1 regulates cell division and differentiation in Marchantia polymorpha. Curr Biol 2021; 31:4860-4869.e8. [PMID: 34529936 DOI: 10.1016/j.cub.2021.08.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/24/2021] [Accepted: 08/18/2021] [Indexed: 11/24/2022]
Abstract
Brassinosteroids (BRs) play essential roles in growth and development in seed plants;1 disturbances in BR homeostasis lead to altered mitotic activity in meristems2,3 and organ boundaries4,5 and to changes in meristem determinacy.6 An intricate signaling cascade linking the perception of BRs at the plasma membrane to the regulation of master transcriptional regulators belonging to the BEH, for BES1 homologues, family7 has been described in great detail in model angiosperms. Homologs of these transcription factors are present in streptophyte algae and in land plant lineages where BR signaling or function is absent or has not yet been characterized. The genome of the bryophyte Marchantia polymorpha does not encode for BR receptors but includes one close ortholog of Arabidopsis thaliana BRI1-EMS-SUPPRESSOR 1 (AtBES1)8 and Arabidopsis thaliana BRASSINAZOLE-RESISTANT 1 (AtBZR1),9 MpBES1. Altered levels of MpBES1 severely compromised cell division and differentiation, resulting in stunted thalli that failed to differentiate adult tissues and reproductive organs. The transcriptome of Mpbes1 knockout plants revealed a significant overlap with homologous functions controlled by AtBES1 and AtBZR1, suggesting that members of this gene family share a subset of common targets. Indeed, MpBES1 behaved as a gain-of-function substitute of AtBES1/AtBZR1 when expressed in Arabidopsis, probably because it mediates conserved functions but evades the regulatory mechanisms that native counterparts are subject to. Our results show that this family of transcription factors plays an ancestral role in the control of cell division and differentiation in plants and that BR signaling likely co-opted this function and imposed additional regulatory checkpoints upon it.
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12
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Changes in Reactive Oxygen Species, Antioxidants and Carbohydrate Metabolism in Relation to Dormancy Transition and Bud Break in Apple ( Malus × domestica Borkh) Cultivars. Antioxidants (Basel) 2021; 10:antiox10101549. [PMID: 34679683 PMCID: PMC8532908 DOI: 10.3390/antiox10101549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 01/11/2023] Open
Abstract
Understanding the biochemical mechanisms underlying bud dormancy and bloom time regulation in deciduous woody perennials is critical for devising effective strategies to protect these species from spring frost damage. This study investigated the accumulation profiles of carbohydrates, ROS and antioxidants during dormancy in ‘Cripps Pink’ and ‘Honeycrisp’, two apple cultivars representing the early and late bloom cultivars, respectively. Our data showed that starch levels generally declined during dormancy, whereas soluble sugars increased. However, the present study did not record significant alternations in the carbohydrate accumulation profiles between the two cultivars that could account for the differences in their bloom dates. On the other hand, H2O2 accumulation patterns revealed an apparent correlation with the dormancy stage and bloom dates in both cultivars; peaking early in the early-blooming cultivar, sustaining high levels for a longer time in the late-blooming cultivars, and fading by the time of bud burst in both cultivars. Also, the redox balance during dormancy appeared to be maintained mainly by catalase and, to a lesser extent, by glutathione (GSH). Overall, the present study concludes that differences in ROS and the bud redox balance could, at least partially, explain the differences in dormancy duration and bloom date among apple cultivars.
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Liu W, Huang L, Liang X, Liu L, Sun C, Lin X. Heat shock induces cross adaptation to aluminum stress through enhancing ascorbate-glutathione cycle in wheat seedlings. CHEMOSPHERE 2021; 278:130397. [PMID: 33823355 DOI: 10.1016/j.chemosphere.2021.130397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Aluminum (Al), a neurotoxin agent, is universal in the earth crust, but its bioavailability and toxicity are manifested under acidic conditions. Up to 60% of the acid soils are distributed in tropical and subtropical regions, where crops simultaneously experience heat-shock stress. Here, we investigated the effects of heat shock-priming on Al tolerance in two different wheat genotypes. Conditioning of wheat seedlings with short period high temperature significantly alleviated Al-induced root growth inhibition, but did not significantly affect Al accumulation. However, we observed that heat shock-primed roots maintained lower levels of lipid peroxidation and higher cell viability. These priming-triggered effects were associated with reactive oxygen species (ROS) homeostasis. Furthermore, conditioning of plants with high temperature increased the contents of reduced ascorbate and glutathione, and ratios of reduced to oxidized forms of these molecules in wheat roots. However, ascorbate or glutathione biosynthesis inhibitors markedly prevented heat shock priming-induced ROS reduction accompanied by aggravated root elongation. Moreover, heat shock-priming enhanced the metabolic intensity of ascorbate-glutathione cycle, as activities of the cycle-allied enzymes were significantly increased. These results suggest that heat-shock induces cross adaptation to Al toxicity through sustaining efficient ascorbate-glutathione cycle operation in wheat plants.
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Affiliation(s)
- Wenjing Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lin Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xin Liang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lijuan Liu
- Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China.
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou, 310058, China
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Considine MJ, Foyer CH. Stress effects on the reactive oxygen species-dependent regulation of plant growth and development. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5795-5806. [PMID: 34106236 DOI: 10.1093/jxb/erab265] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/04/2021] [Indexed: 05/25/2023]
Abstract
Plant growth is mediated by cell proliferation and expansion. Both processes are controlled by a network of endogenous factors such as phytohormones, reactive oxygen species (ROS), sugars, and other signals, which influence gene expression and post-translational regulation of proteins. Stress resilience requires rapid and appropriate responses in plant growth and development as well as defence. Regulation of ROS accumulation in different cellular compartments influences growth responses to abiotic and biotic stresses. While ROS are essential for growth, they are also implicated in the stress-induced cessation of growth and, in some cases, programmed cell death. It is widely accepted that redox post-translational modifications of key proteins determine the growth changes and cell fate responses to stress, but the molecular pathways and factors involved remain poorly characterized. Here we discuss ROS as a signalling molecule, the mechanisms of ROS-dependent regulation that influence protein-protein interactions, protein function, and turnover, together with the relocation of key proteins to different intracellular compartments in a manner that can alter cell fate. Understanding how the redox interactome responds to stress-induced increases in ROS may provide a road map to tailoring the dynamic ROS interactions that determine growth and cell fate in order to enhance stress resilience.
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Affiliation(s)
- Michael J Considine
- The School of Molecular Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Christine H Foyer
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston B15 2TT, UK
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15
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Hosni H, Diallo A, Morcillo F, Vaissayre V, Collin M, Tranchant-Dubreuil C, Dussert S, Joët T, Castaño F, Marquínez X, Stauffer FW, Hodel DR, Castillo Mont JJ, Adam H, Jouannic S, Tregear JW. Redox-related gene expression and sugar accumulation patterns are altered in the edible inflorescence produced by the cultivated form of pacaya palm (Chamaedorea tepejilote). ANNALS OF BOTANY 2021; 128:231-240. [PMID: 33978714 PMCID: PMC8324030 DOI: 10.1093/aob/mcab060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/07/2021] [Indexed: 05/23/2023]
Abstract
BACKGROUND AND AIMS The pacaya palm is a dioecious neotropical palm species that is exploited in Latin America for its male inflorescence, which is edible when immature. It is cultivated, in a non-intensive manner, in Guatemala, where a morphotype occurs that produces much larger, more highly branched inflorescences compared with wild palms. We sought to identify molecular factors underlying this phenotypic divergence, which is likely to be a product of domestication. METHODS We performed RNA-seq-based studies on immature pacaya palm male inflorescences in order to identify genes that might be directly or indirectly affected in their expression in relation to domestication. We also measured the accumulation of a range of soluble sugar molecules to provide information on the biochemical status of the two different types of material. KEY RESULTS A total of 408 genes were found to display significantly different expression levels between the wild and cultivated morphotypes. Three different functional categories were found to be enriched in the gene set that was upregulated in the cultivated morphotype: redox balance; secondary metabolism; and transport. Several sugars were found to accumulate at higher levels in inflorescences of the cultivated morphotype, in particular myo-inositol, fructose and glucose. CONCLUSIONS The observed upregulation of redox-related genes in the cultivated morphotype is corroborated by the observation of higher myo-inositol accumulation, which has been shown to be associated with enhanced scavenging of reactive oxygen species in other plants and which may affect meristem activity.
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Affiliation(s)
- Hanene Hosni
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Abdoulaye Diallo
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Fabienne Morcillo
- CIRAD, DIADE, Montpellier, France
- DIADE, Université de Montpellier, Institut de Recherche pour le Développement, Montpellier, France
| | - Virginie Vaissayre
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Myriam Collin
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | | | - Stéphane Dussert
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Thierry Joët
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Felipe Castaño
- Universidad Industrial de Santander, Escuela de Biología, Calle, Bucaramanga, Colombia
| | - Xavier Marquínez
- Universidad Nacional de Colombia, Departamento de Biología, Carrera, Bogotá, Colombia
| | - Fred W Stauffer
- Conservatoire et Jardin botaniques de la Ville de Genève, Université de Genève, Laboratoire de Systématique Végétale et Biodiversité, Chambésy, Switzerland
| | - Donald R Hodel
- University of California, Cooperative Extension, Alhambra, CA, USA
| | | | - Hélène Adam
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - Stefan Jouannic
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
| | - James W Tregear
- Institut de Recherche pour le Développement (IRD), UMR DIADE, Université de Montpellier, Montpellier, France
- For correspondence. E-mail
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16
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Ma Y, Ren X, Liang C. Exogenous Ca 2+ enhances antioxidant defense in rice to simulated acid rain by regulating ascorbate peroxidase and glutathione reductase. PLANTA 2021; 254:41. [PMID: 34327596 DOI: 10.1007/s00425-021-03679-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Exogenous calcium enhances rice tolerance to acid rain stress by regulating isozymes composition and transcriptional expression of ascorbate peroxidase and glutathione reductase. Calcium (Ca) participates in signal transduction in plants under abiotic stress, and addition of Ca2+ is beneficial to alleviate damage of plants caused by acid rain. To clarify the effect of exogenous Ca2+ on tolerance of plants to acid rain stress, we investigated regulation of Ca2+ (5 mM) on activities, isozymes composition and transcriptional expression of ascorbate peroxidase (APX) and glutathione reductase (GR), redox state, and H2O2 concentration and growth in rice leaves and roots under simulated acid rain (SAR) stress. SAR (pH 3.5/2.5) decreased the total activities of APX and GR in rice by decreasing the concentration of APX isoforms (APXII in leaves and APXIII in roots) as well as activation degree of GR isozymes and transcription level of GR1, indicating that SAR (pH 3.5/2.5) destroyed the redox state in rice cells and induced H2O2 excessive accumulation, and inhibited growth of rice. Exogenous Ca2+ alleviated SAR-induced inhibition on activities of APX and GR by regulating the concentration, activation, and transcription of their isozymes, and then maintained the redox level of cells and protected cells from oxidative damage, being beneficial to the growth of rice. Therefore, the promotion of exogenous Ca2+ on activities of APX and GR can be important to enhance rice tolerance to acid rain by maintaining redox state and avoiding oxidative damage.
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Affiliation(s)
- Yongjia Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Xiaoqian Ren
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Chanjuan Liang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China.
- Jiangsu Cooperative Innovation Center of Technology and Material of Water Treatment, Jiangnan University, Wuxi, 214122, China.
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17
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Porcher A, Guérin V, Leduc N, Lebrec A, Lothier J, Vian A. Ascorbate-glutathione pathways mediated by cytokinin regulate H2O2 levels in light-controlled rose bud burst. PLANT PHYSIOLOGY 2021; 186:910-928. [PMID: 33711160 PMCID: PMC8195510 DOI: 10.1093/plphys/kiab123] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/22/2021] [Indexed: 05/10/2023]
Abstract
Rosebush (Rosa "Radrazz") plants are an excellent model to study light control of bud outgrowth since bud outgrowth only arises in the presence of light and never occurs in darkness. Recently, we demonstrated high levels of hydrogen peroxide (H2O2) present in the quiescent axillary buds strongly repress the outgrowth process. In light, the outgrowing process occurred after H2O2 scavenging through the promotion of Ascorbic acid-Glutathione (AsA-GSH)-dependent pathways and the continuous decrease in H2O2 production. Here we showed Respiratory Burst Oxidase Homologs expression decreased in buds during the outgrowth process in light. In continuous darkness, the same decrease was observed although H2O2 remained at high levels in axillary buds, as a consequence of the strong inhibition of AsA-GSH cycle and GSH synthesis preventing the outgrowth process. Cytokinin (CK) application can evoke bud outgrowth in light as well as in continuous darkness. Furthermore, CKs are the initial targets of light in the photocontrol process. We showed CK application to cultured buds in darkness decreases bud H2O2 to a level that is similar to that observed in light. Furthermore, this treatment restores GSH levels and engages bud burst. We treated plants with buthionine sulfoximine, an inhibitor of GSH synthesis, to solve the sequence of events involving H2O2/GSH metabolisms in the photocontrol process. This treatment prevented bud burst, even in the presence of CK, suggesting the sequence of actions starts with the positive CK effect on GSH that in turn stimulates H2O2 scavenging, resulting in initiation of bud outgrowth.
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Affiliation(s)
- Alexis Porcher
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Vincent Guérin
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Nathalie Leduc
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Anita Lebrec
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Jérémy Lothier
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
| | - Alain Vian
- Institut Agro, University of Angers INRAE, IRHS, SFR QUASAV, F-49000 Angers, France
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18
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Pérez FJ, Noriega X, Rubio S. Hydrogen Peroxide Increases during Endodormancy and Decreases during Budbreak in Grapevine ( Vitis vinifera L.) Buds. Antioxidants (Basel) 2021; 10:antiox10060873. [PMID: 34072287 PMCID: PMC8228137 DOI: 10.3390/antiox10060873] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/04/2022] Open
Abstract
Changes in the level of hydrogen peroxide (H2O2) is a good indicator to monitor fluctuations in cellular metabolism and in the stress responses. In this study, the changes in H2O2 content during bud endodormancy (ED) and budbreak were analysed in grapevine (Vitis vinifera L.). The results showed a gradual increase in the H2O2 content during the development of bud ED, which was mainly due to an increase in the activity of peroxidases (PODs). The maximum H2O2 content reached in the grapevine buds coincided with the maximum depth of bud ED. In contrast, during budbreak, the H2O2 content decreased. As the plant hormones cytokinin (CK) and auxin play an important role in budbreak and growth resumption in grapevine, the effect of exogenous applications of H2O2 on the expression of genes involved in CK and auxin metabolism was analysed. The results showed that H2O2 represses the expression of the CK biosynthesis genes VvIPT3a and VvLOG1 and induces the expression of the CK-inactivating gene VvCKX3, thus reducing potentially the CK content in the grapevine bud. On the other hand, H2O2 induced the expression of the auxin biosynthesis genes VvAMI1 and VvYUC3 and of the auxin transporter gene VvPIN3, thus increasing potentially the auxin content and auxin transport in grapevine buds. In general, the results suggest that H2O2 in grapevine buds is associated with the depth of ED and negatively regulates its budbreak.
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Wang X, Zhang R, Huang Q, Shi X, Li D, Shao L, Xu T, Horvath DP, Xia Y, Zhang J. Comparative Study on Physiological Responses and Gene Expression of Bud Endodormancy Release Between Two Herbaceous Peony Cultivars ( Paeonia lactiflora Pall.) With Contrasting Chilling Requirements. FRONTIERS IN PLANT SCIENCE 2021; 12:772285. [PMID: 35185946 PMCID: PMC8847303 DOI: 10.3389/fpls.2021.772285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/23/2021] [Indexed: 05/10/2023]
Abstract
With the global temperature increase, diverse endogenous factors and environmental cues can lead to severe obstacles to bud endodormancy release for important economic plants, such as herbaceous peony (Paeonia lactiflora Pall.). Knowing the underlying mechanism in bud endodormancy release is vital for widely planting herbaceous peony at low latitudes with warm winter climates. A systematic study was carried out between the southern Chinese cultivar 'Hang Baishao' with low-chilling requirement (CR) trait and the northern cultivar 'Zhuguang' with high-CR trait. Peony buds were sampled at regular intervals under natural cold during the crucial bud endodormancy release stage. Physiology and morphology of the buds were observed, and the roles of reactive oxygen species (ROS) and relevant genes in the regulation of bud endodormancy release were also highlighted, which has been rather rare in previous bud dormancy studies of both herbaceous and tree peonies. The expression of the starch metabolism- and sucrose synthesis-related genes PlAMY PlSPS and PlSUS was lower in the high-CR 'Zhuguang' and corresponded to a lower content of soluble sugars. The expression of polyamine oxidase gene PlPAO2 correlated with a higher level of hydrogen peroxide (H2O2) in high-CR 'Zhuguang' than in low CR 'Hang Baishao' during bud endodormancy. Expression of PlMAPKKK5, an intermediate gene in the abscisic acid (ABA) response to ROS signaling, correlated with ROS levels and ABA content. We present the hypothesis that accumulation of ROS increases ABA content and decreases GA3 content and signal transduction leading to reduced expression of PlSVP and PlSOC1. Reduced cell division and increased cellular damage which probably blocked bud endodormancy release were also observed in high-CR 'Zhuguang' through histological observation and related genes expression. This study provides a comparative analysis on physiological responses and gene expression patterns of bud dormancy of geophytes in an increasingly unsuitable environment.
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Affiliation(s)
- Xiaobin Wang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Runlong Zhang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Qiaoyu Huang
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, China
| | - Xiaohua Shi
- Zhejiang Institute of Landscape Plants and Flowers, Hangzhou, China
| | - Danqing Li
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Lingmei Shao
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Tong Xu
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - David P. Horvath
- Agricultural Research Service, United States Department of Agriculture, Washington, DC, United States
- *Correspondence: David P. Horvath,
| | - Yiping Xia
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Yiping Xia,
| | - Jiaping Zhang
- Genomics and Genetic Engineering Laboratory of Ornamental Plants, Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- Jiaping Zhang,
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20
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Mallet J, Laufs P, Leduc N, Le Gourrierec J. Photocontrol of Axillary Bud Outgrowth by MicroRNAs: Current State-of-the-Art and Novel Perspectives Gained From the Rosebush Model. FRONTIERS IN PLANT SCIENCE 2021; 12:770363. [PMID: 35173747 PMCID: PMC8841825 DOI: 10.3389/fpls.2021.770363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/13/2021] [Indexed: 05/05/2023]
Abstract
Shoot branching is highly dependent on environmental factors. While many species show some light dependence for branching, the rosebush shows a strict requirement for light to allow branching, making this species an excellent model to further understand how light impinges on branching. Here, in the first part, we provide a review of the current understanding of how light may modulate the complex regulatory network of endogenous factors like hormones (SL, IAA, CK, GA, and ABA), nutrients (sugar and nitrogen), and ROS to control branching. We review the regulatory contribution of microRNAs (miRNAs) to branching in different species, highlighting the action of such evolutionarily conserved factors. We underline some possible pathways by which light may modulate miRNA-dependent regulation of branching. In the second part, we exploit the strict light dependence of rosebush for branching to identify putative miRNAs that could contribute to the photocontrol of branching. For this, we first performed a profiling of the miRNAs expressed in early light-induced rosebush buds and next tested whether they were predicted to target recognized regulators of branching. Thus, we identified seven miRNAs (miR156, miR159, miR164, miR166, miR399, miR477, and miR8175) that could target nine genes (CKX1/6, EXPA3, MAX4, CYCD3;1, SUSY, 6PFK, APX1, and RBOHB1). Because these genes are affecting branching through different hormonal or metabolic pathways and because expression of some of these genes is photoregulated, our bioinformatic analysis suggests that miRNAs may trigger a rearrangement of the regulatory network to modulate branching in response to light environment.
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Affiliation(s)
- Julie Mallet
- University of Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
| | - Patrick Laufs
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Nathalie Leduc
- University of Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
| | - José Le Gourrierec
- University of Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, Angers, France
- *Correspondence: José Le Gourrierec,
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