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Salinity Stress: Toward Sustainable Plant Strategies and Using Plant Growth-Promoting Rhizobacteria Encapsulation for Reducing It. SUSTAINABILITY 2021. [DOI: 10.3390/su132212758] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Salinity is one of the most important abiotic stresses that influences plant growth and productivity worldwide. Salinity affects plant growth by ionic toxicity, osmotic stress, hormonal imbalance, nutrient mobilization reduction, and reactive oxygen species (ROS). To survive in saline soils, plants have developed various physiological and biochemical strategies such as ion exchange, activation of antioxidant enzymes, and hormonal stimulation. In addition to plant adaption mechanisms, plant growth-promoting rhizobacteria (PGPR) can enhance salt tolerance in plants via ion homeostasis, production of antioxidants, ACC deaminase, phytohormones, extracellular polymeric substance (EPS), volatile organic compounds, accumulation of osmolytes, activation of plant antioxidative enzymes, and improvement of nutrients uptake. One of the important issues in microbial biotechnology is establishing a link between the beneficial strains screened in the laboratory with industry and the consumer. Therefore, in the development of biocontrol agents, it is necessary to study the optimization of conditions for mass reproduction and the selection of a suitable carrier for their final formulation. Toward sustainable agriculture, the use of appropriate formulations of bacterial agents as high-performance biofertilizers, including microbial biocapsules, is necessary to improve salt tolerance and crop productivity.
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Gao C, Sheteiwy MS, Lin C, Guan Y, Ulhassan Z, Hu J. Spermidine Suppressed the Inhibitory Effects of Polyamines Inhibitors Combination in Maize ( Zea mays L.) Seedlings under Chilling Stress. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10112421. [PMID: 34834784 PMCID: PMC8620270 DOI: 10.3390/plants10112421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 05/07/2023]
Abstract
Chilling stress greatly inhibited the seed germination, plant growth, development and productivity in this study. The current research aimed to study the effects of different polyamine (PA) inhibitor combinations (Co), e.g., D-arginine (D-Arg), difluoromethylormithine (DFMO), aminoguanidine (Ag) and methylglyoxyl-bis-(guanyhydrazone) (MGBG) at different doses, i.e., 10 µM Co, 100 µM Co, 500 µM Co, 1000 µM Co and 1000 µM Co + 1 mM Spd (Spermidine) in two inbred lines of maize (Zea mays L.), i.e., Mo17 and Huang C, a sensitive and tolerant chilling stress, respectively. The combination treatments of PA inhibitors reduced the biosynthesis of putrescine (Put) in the tissues of both studied inbred lines. Application with 500 µM Co and 1000 µM Co did not result in a significant difference in Put concentrations, except in the coleoptile of Mo17. However, combining Spd to 1000 μM of PA inhibitors enhanced the Put, Spd, spermine (Spm) and total PAs in the roots, coleoptile and mesocotyls. Put and total PAs were increased by 39.7% and 30.54%, respectively, when Spd + 1000 µM Co were applied relative to their controls. Chilling stress and PA inhibitors treatments affected both inbred lines and resulted in differences in the PA contents. Results showed that enzymes involved in the biosynthesis of PAs (ornithine decarboxylase as ODC and S-adenosylmethionine decarboxylase as SAMDC) were significantly downregulated by 1000 µM Co in the tissues of both inbred lines. In contrast, the activity of PAO, a Pas degradation enzyme, was significantly improved by 1000 µM Co under chilling stress. However, Spd + 1000 µM Co significantly improved the activities of ODC and SAMDC and their transcript levels (ODC and SAMDC2). While it significantly downregulated the PAO activity and their relative genes (PAO1, PAO2 and PAO3) under chilling stress. Overall, this study elucidates the specific roles of Spd on the pathway of PA inhibitors and PA biosynthesis metabolism in maize seed development in response to chilling stress. Moreover, the Huang C inbred line was more tolerant than Mo17, which was reflected by higher activities of PA biosynthesis-related enzymes and lower activities of PAs' degradative-related enzymes in Huang C.
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Affiliation(s)
- Canhong Gao
- College of Agriculture, Anhui Agricultural University, Hefei 230036, China;
- Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Mohamed S. Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt;
| | - Chen Lin
- Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Yajing Guan
- Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
- Correspondence: (Y.G.); (J.H.)
| | - Zaid Ulhassan
- Laboratory of Spectroscopy Sensing, Institute of Crop Science, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou 310058, China;
| | - Jin Hu
- Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
- Correspondence: (Y.G.); (J.H.)
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Improving water deficit tolerance of Salvia officinalis L. using putrescine. Sci Rep 2021; 11:21997. [PMID: 34753954 PMCID: PMC8578639 DOI: 10.1038/s41598-021-00656-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 10/14/2021] [Indexed: 12/13/2022] Open
Abstract
To study the effects of foliar application of putrescine (distilled water (0), 0.75, 1.5, and 2.25 mM) and water deficit stress (20%, 40%, 60%, and 80% available soil water depletion (ASWD)) on the physiological, biochemical, and molecular attributes of Salvia officinalis L., a factorial experiment was performed in a completely randomized design with three replications in the growth chamber. The results of Real-Time quantitative polymerase chain reaction (qRT-PCR) analysis showed that putrescine concentration, irrigation regime, and the two-way interaction between irrigation regime and putrescine concentration significantly influenced cineole synthase (CS), sabinene synthase (SS), and bornyl diphosphate synthase (BPPS) relative expression. The highest concentration of 1,8-cineole, camphor, α-thujone, β-thujone, CS, SS, and BPPS were obtained in the irrigation regime of 80% ASWD with the application of 0.75 mM putrescine. There was high correlation between expression levels of the main monoterpenes synthase and the concentration of main monoterpenes. The observed correlation between the two enzyme activities of ascorbate peroxidase (APX) and catalase (CAT) strongly suggests they have coordinated action. On the other hand, the highest peroxidase (PO) and superoxide dismutase (SOD) concentrations were obtained with the application of 0.75 mM putrescine under the irrigation regime of 40% ASWD. Putrescine showed a significant increase in LAI and RWC under water deficit stress. There was an increasing trend in endogenous putrescine when putrescine concentration was increased in all irrigation regimes. Overall, the results suggest that putrescine may act directly as a stress-protecting compound and reduced H2O2 to moderate the capacity of the antioxidative system, maintain the membrane stability, and increase secondary metabolites under water deficit stress.
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Alhag A, Song J, Dahro B, Wu H, Khan M, Salih H, Liu JH. Genome-wide identification and expression analysis of Polyamine Uptake Transporter gene family in sweet orange (Citrus sinensis). PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:1157-1166. [PMID: 34374185 DOI: 10.1111/plb.13302] [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: 04/05/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
Polyamine uptake transporter (PUT) plays important roles in polyamine homeostasis, but knowledge regarding PUT family genes in sweet orange (Citrus sinensis) remains elusive. Herein, our study aimed to perform a genome-wide identification of the PUT gene family in C. sinensis. A total of eight putative PUT genes (CsPUT1-CsPUT8) were identified in the sweet orange genome and distributed on three chromosomes. The CsPUT genes were divided into two major groups according to the phylogenetic tree analysis, with high similarities in protein domains and gene structure organization. The CsPUT genes were differentially expressed in different tissues, with the highest transcript levels being in the flowers and roots. Interestingly, the CsPUT genes were significantly induced by polyamines, putrescine, spermidine and spermine, indicating that CsPUT were possibly associated with intracellular polyamine transport and uptake. In addition, CsPUT showed differential expression in callus treated with ABA, cold, salt or osmotic shock. CsPUT4 was selected as a candidate for functional analysis of PUT. Overexpression of CsPUT4 elevated endogenous polyamine content and led to enhanced cold tolerance in transgenic callus cultures. Overall, these data provide valuable information for better understanding the potential biological functions of PUT genes in future.
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Affiliation(s)
- A Alhag
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
- University of Bakht Al Ruda, Ministry of Higher Education and Scientific Research, Khartoum, Sudan
| | - J Song
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - B Dahro
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - H Wu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - M Khan
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - H Salih
- Crop Sciences, Faculty of Agriculture, Zalingei University, Central Darfur, Zalingei, Sudan
| | - J-H Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
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Krayem M, Khatib SE, Hassan Y, Deluchat V, Labrousse P. In search for potential biomarkers of copper stress in aquatic plants. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 239:105952. [PMID: 34488000 DOI: 10.1016/j.aquatox.2021.105952] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/21/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Over the last few decades, the use of pesticides and discharge of industrial and domestic wastewater on water surfaces have increased. Especially, Copper (Cu) pollution in aquatic ecosystems could constitute a major health problem, not only for flora and fauna but also for humans. To cope with this challenge, environmental monitoring studies have sought to find Cu-specific biomarkers in terrestrial and aquatic flora and/or fauna. This review discusses the toxic effects caused by Cu on the growth and development of plants, with a special focus on aquatic plants. While copper is considered as an essential metal involved in vital mechanisms for plants, when in excess it becomes toxic and causes alterations on biomarkers: biochemical (oxidative stress, pigment content, phytochelatins, polyamines), physiological (photosynthesis, respiration, osmotic potential), and morphological. In addition, Cu has a detrimental effect on DNA and hormonal balance. An overview of Cu toxicity and detoxification in plants is provided, along with information regarding Cu bioaccumulation and transport. Awareness of the potential use of these reactions as specific biomarkers for copper contamination has indeed become essential.
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Affiliation(s)
- Maha Krayem
- LIU, Lebanese International University, Bekaa Campus, Al Khyara-West Bekaa, Lebanon; Université de Limoges, PEIRENE EA 7500, Limoges, France
| | - S El Khatib
- LIU, Lebanese International University, Bekaa Campus, Al Khyara-West Bekaa, Lebanon
| | - Yara Hassan
- LIU, Lebanese International University, Bekaa Campus, Al Khyara-West Bekaa, Lebanon
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Grossi L, Casadei R. The crucial role of non-enzymatic NO-production in plants. An EPR study. PHYTOCHEMISTRY 2021; 188:112794. [PMID: 34022441 DOI: 10.1016/j.phytochem.2021.112794] [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: 12/02/2020] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Polyamines and polyamides have a fundamental role in the biology of plants, and the presence of NO seems compulsory to account for their actions. In general, the NO production has claimed to occur through an enzymatic process, but not involving polyamines and polyamides. Nevertheless, a non-enzymatic mechanism, such as an electron transfer process among polyamines or polyamides and an acid nitrite solution, could account for rapid production of NO, even in anoxic conditions. EPR experiments, carried out with these substrates, proved the formation of NO. This evidence supports a non-enzymatic mechanism as an alternative source of NO, even in plants. So, since the NO production seems directly dependent on polyamines or polyamides presence, and these responsible for many activities in plants, it comes plausibly to consider crucial the involvement of NO in their actions. Furthermore, as for mammals, these results would confirm that, even in plants, NO production can occur through both enzymatic and non-enzymatic mechanisms.
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Affiliation(s)
- Loris Grossi
- Dipartimento di "Scienze per la Qualità della Vita" - Università di Bologna, Campus di Rimini, Corso d'Augusto, 237 I-47921, Rimini, Italy.
| | - Raffaella Casadei
- Dipartimento di "Scienze per la Qualità della Vita" - Università di Bologna, Campus di Rimini, Corso d'Augusto, 237 I-47921, Rimini, Italy.
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Plant Transcriptome Reprograming and Bacterial Extracellular Metabolites Underlying Tomato Drought Resistance Triggered by a Beneficial Soil Bacteria. Metabolites 2021; 11:metabo11060369. [PMID: 34207663 PMCID: PMC8230097 DOI: 10.3390/metabo11060369] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/27/2021] [Accepted: 06/07/2021] [Indexed: 12/13/2022] Open
Abstract
Water deficit is one of the major constraints to crop production and food security worldwide. Some plant growth-promoting rhizobacteria (PGPR) strains are capable of increasing plant drought resistance. Knowledge about the mechanisms underlying bacteria-induced plant drought resistance is important for PGPR applications in agriculture. In this study, we show the drought stress-mitigating effects on tomato plants by the Bacillus megaterium strain TG1-E1, followed by the profiling of plant transcriptomic responses to TG1-E1 and the profiling of bacterial extracellular metabolites. Comparison between the transcriptomes of drought-stressed plants with and without TG1-E1 inoculation revealed bacteria-induced transcriptome reprograming, with highlights on differentially expressed genes belonging to the functional categories including transcription factors, signal transduction, and cell wall biogenesis and organization. Mass spectrometry-based analysis identified over 40 bacterial extracellular metabolites, including several important regulators or osmoprotectant precursors for increasing plant drought resistance. These results demonstrate the importance of plant transcriptional regulation and bacterial metabolites in PGPR-induced plant drought resistance.
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Thakur M, Anand A. Hydrogen sulfide: An emerging signaling molecule regulating drought stress response in plants. PHYSIOLOGIA PLANTARUM 2021; 172:1227-1243. [PMID: 33860955 DOI: 10.1111/ppl.13432] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Hydrogen sulfide (H2 S) is a small, reactive signaling molecule that is produced within chloroplasts of plant cells as an intermediate in the assimilatory sulfate reduction pathway by the enzyme sulfite reductase. In addition, H2 S is also produced in cytosol and mitochondria by desulfhydration of l-cysteine catalyzed by l-cysteine desulfhydrase (DES1) in the cytosol and from β-cyanoalanine in mitochondria, in a reaction catalyzed by β-cyano-Ala synthase C1 (CAS-C1). H2 S exerts its numerous biological functions by post-translational modification involving oxidation of cysteine residues (RSH) to persulfides (RSSH). At lower concentrations (10-1000 μmol L-1 ), H2 S shows huge agricultural potential as it increases the germination rate, the size, fresh weight, and ultimately the crop yield. It is also involved in abiotic stress response against drought, salinity, high temperature, and heavy metals. H2 S donor, for example, sodium hydrosulfide (NaHS), has been exogenously applied on plants by various researchers to provide drought stress tolerance. Exogenous application results in the accumulation of polyamines, sugars, glycine betaine, and enhancement of the antioxidant enzyme activities in response to drought-induced osmotic and oxidative stress, thus, providing stress adaptation to plants. At the biochemical level, administration of H2 S donors reduces malondialdehyde content and lipoxygenase activity to maintain the cell integrity, causes abscisic acid-mediated stomatal closure to prevent water loss through transpiration, and accelerates the photosystem II repair cycle. Here, we review the crosstalk of H2 S with secondary messengers and phytohormones towards the regulation of drought stress response and emphasize various approaches that can be addressed to strengthen research in this area.
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Affiliation(s)
- Meenakshi Thakur
- College of Horticulture and Forestry (Dr. Y.S. Parmar University of Horticulture and Forestry), Neri, Hamirpur, India
| | - Anjali Anand
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
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Sagor GHM, Inoue M, Kusano T, Berberich T. Expression profile of seven polyamine oxidase genes in rice ( Oryza sativa) in response to abiotic stresses, phytohormones and polyamines. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:1353-1359. [PMID: 34220045 PMCID: PMC8212247 DOI: 10.1007/s12298-021-01006-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 05/09/2023]
Abstract
UNLABELLED Polyamine levels are controlled by biosynthesis, intra- and inter-cellular flux by the respective transporters, and catabolism. The catabolism is catalyzed by two groups of enzymes. One is copper-containing amine oxidases and the other is polyamine oxidases (PAOs). In Oryza sativa, seven PAO genes exist and they are termed as OsPAO1 to OsPAO7. However, their physiological function has not been elucidated yet. Here, we examined the expressional changes of seven OsPAO genes upon abiotic and oxidative stress, phytohormone, and exogenous polyamines application. The transcript of extracellular polyamine oxidase OsPAO2 and OsPAO6 are strongly induced upon wounding, drought, salinity, oxidative stress (H2O2), and exogenous application of jasmonic acid, spermidine, spermine, thermospermine and negatively regulated upon indole acetic acid, isopentenyl adenine (iPT), gibberellic acid (GA), abscisic acid; OsPAO7 is to iPT, GA and all polyamines; OsPAO4 and OsPAO5 are mildly responsive to heat, cold, oxidative stress. These results suggest that polyamine oxidase encoding extracellular enzyme may play a pivotal role during exogenous stimulus to protect the plant cell. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01006-1.
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Affiliation(s)
- G. H. M. Sagor
- Plant Molecular Genetics Laboratory, Department of Genetics & Plant Breeding, Bangladesh Agricultural University, Mymensingh, 2202 Bangladesh
| | - Masataka Inoue
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, 980-8577 Japan
| | - Tomonobu Kusano
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, 980-8577 Japan
| | - Thomas Berberich
- Laboratory Center, Biodiversity and Climate Research Center, Georg-Voigt-Str. 14-16, 60325 Frankfurt am Main, Germany
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Hashem AM, Moore S, Chen S, Hu C, Zhao Q, Elesawi IE, Feng Y, Topping JF, Liu J, Lindsey K, Chen C. Putrescine Depletion Affects Arabidopsis Root Meristem Size by Modulating Auxin and Cytokinin Signaling and ROS Accumulation. Int J Mol Sci 2021; 22:4094. [PMID: 33920993 PMCID: PMC8071467 DOI: 10.3390/ijms22084094] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
Polyamines (PAs) dramatically affect root architecture and development, mainly by unknown mechanisms; however, accumulating evidence points to hormone signaling and reactive oxygen species (ROS) as candidate mechanisms. To test this hypothesis, PA levels were modified by progressively reducing ADC1/2 activity and Put levels, and then changes in root meristematic zone (MZ) size, ROS, and auxin and cytokinin (CK) signaling were investigated. Decreasing putrescine resulted in an interesting inverted-U-trend in primary root growth and a similar trend in MZ size, and differential changes in putrescine (Put), spermidine (Spd), and combined spermine (Spm) plus thermospermine (Tspm) levels. At low Put concentrations, ROS accumulation increased coincidently with decreasing MZ size, and treatment with ROS scavenger KI partially rescued this phenotype. Analysis of double AtrbohD/F loss-of-function mutants indicated that NADPH oxidases were not involved in H2O2 accumulation and that elevated ROS levels were due to changes in PA back-conversion, terminal catabolism, PA ROS scavenging, or another pathway. Decreasing Put resulted in a non-linear trend in auxin signaling, whereas CK signaling decreased, re-balancing auxin and CK signaling. Different levels of Put modulated the expression of PIN1 and PIN2 auxin transporters, indicating changes to auxin distribution. These data strongly suggest that PAs modulate MZ size through both hormone signaling and ROS accumulation in Arabidopsis.
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Affiliation(s)
- Ahmed M. Hashem
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, College of Life Science, Guizhou University, Guiyang 550025, China
- Biotechnology Department, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Simon Moore
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (J.F.T.); (J.L.); (K.L.)
| | - Shangjian Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
| | - Chenchen Hu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
| | - Qing Zhao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
| | - Ibrahim Eid Elesawi
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, College of Life Science, Guizhou University, Guiyang 550025, China
- Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Yanni Feng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
| | - Jennifer F. Topping
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (J.F.T.); (J.L.); (K.L.)
| | - Junli Liu
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (J.F.T.); (J.L.); (K.L.)
| | - Keith Lindsey
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK; (J.F.T.); (J.L.); (K.L.)
| | - Chunli Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (A.M.H.); (S.M.); (S.C.); (C.H.); (Q.Z.); (I.E.E.); (Y.F.)
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, College of Life Science, Guizhou University, Guiyang 550025, China
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Priming Strategies for Benefiting Plant Performance under Toxic Trace Metal Exposure. PLANTS 2021; 10:plants10040623. [PMID: 33805922 PMCID: PMC8064369 DOI: 10.3390/plants10040623] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/25/2022]
Abstract
Combating environmental stress related to the presence of toxic elements is one of the most important challenges in plant production. The majority of plant species suffer from developmental abnormalities caused by an exposure to toxic concentrations of metals and metalloids, mainly Al, As, Cd, Cu, Hg, Ni, Pb, and Zn. However, defense mechanisms are activated with diverse intensity and efficiency. Enhancement of defense potential can be achieved though exogenously applied treatments, resulting in a higher capability of surviving and developing under stress and become, at least temporarily, tolerant to stress factors. In this review, I present several already recognized as well as novel methods of the priming process called priming, resulting in the so-called “primed state” of the plant organism. Primed plants have a higher capability of surviving and developing under stress, and become, at least temporarily, tolerant to stress factors. In this review, several already recognized as well as novel methods of priming plants towards tolerance to metallic stress are discussed, with attention paid to similarities in priming mechanisms activated by the most versatile priming agents. This knowledge could contribute to the development of priming mixtures to counteract negative effects of multi-metallic and multi-abiotic stresses. Presentation of mechanisms is complemented with information on the genes regulated by priming towards metallic stress tolerance. Novel compounds and techniques that can be exploited in priming experiments are also summarized.
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Kour J, Kohli SK, Khanna K, Bakshi P, Sharma P, Singh AD, Ibrahim M, Devi K, Sharma N, Ohri P, Skalicky M, Brestic M, Bhardwaj R, Landi M, Sharma A. Brassinosteroid Signaling, Crosstalk and, Physiological Functions in Plants Under Heavy Metal Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:608061. [PMID: 33841453 PMCID: PMC8024700 DOI: 10.3389/fpls.2021.608061] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/27/2021] [Indexed: 05/05/2023]
Abstract
Brassinosteroids (BRs) are group of plant steroidal hormones that modulate developmental processes and also have pivotal role in stress management. Biosynthesis of BRs takes place through established early C-6 and late C-6 oxidation pathways and the C-22 hydroxylation pathway triggered by activation of the DWF4 gene that acts on multiple intermediates. BRs are recognized at the cell surface by the receptor kinases, BRI1 and BAK1, which relay signals to the nucleus through a phosphorylation cascade involving phosphorylation of BSU1 protein and proteasomal degradation of BIN2 proteins. Inactivation of BIN2 allows BES1/BZR1 to enter the nucleus and regulate the expression of target genes. In the whole cascade of signal recognition, transduction and regulation of target genes, BRs crosstalk with other phytohormones that play significant roles. In the current era, plants are continuously exposed to abiotic stresses and heavy metal stress is one of the major stresses. The present study reveals the mechanism of these events from biosynthesis, transport and crosstalk through receptor kinases and transcriptional networks under heavy metal stress.
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Affiliation(s)
- Jaspreet Kour
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Palak Bakshi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Pooja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Arun Dev Singh
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Mohd Ibrahim
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Kamini Devi
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Neerja Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, India
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Czech University of Life Sciences Prague, Prague, Czechia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Czech University of Life Sciences Prague, Prague, Czechia
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, Slovakia
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
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Stassinos PM, Rossi M, Borromeo I, Capo C, Beninati S, Forni C. Enhancement of Brassica napus Tolerance to High Saline Conditions by Seed Priming. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10020403. [PMID: 33672546 PMCID: PMC7923807 DOI: 10.3390/plants10020403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 05/27/2023]
Abstract
Plants grown in saline soils undergo osmotic and oxidative stresses, affecting growth and photosynthesis and, consequently, the yield. Therefore, the increase in soil salinity is a major threat to crop productivity worldwide. Plant's tolerance can be ameliorated by applying simple methods that induce them to adopt morphological and physiological adjustments to counteract stress. In this work, we evaluated the effects of seed priming on salt stress response in three cultivars of rapeseed (Brassica napus L.) that had different tolerance levels. Seed chemical priming was performed with 2.5 mM spermine (SPM), 5 mM spermidine (SPD), 40 mM NaCl and 2.5 mM Ca (NO3)2. Primed and not primed seeds were sown on saline and not saline (controls) media, and morphological and physiological parameters were determined. Since SPD treatment was effective in reducing salinity negative effects on growth, membrane integrity and photosynthetic pigments, we selected this priming to further investigate plant salt stress response. The positive effects of this seed treatment on growth and physiological responses were evident when primed plants were compared to not primed ones, grown under the same saline conditions. SPD priming ameliorated the tolerance towards saline stress, in a genotype-independent manner, by increasing photosynthetic pigments, proline amounts and antioxidant responses in all cultivars exposed to salt. These results may open new perspectives for crop productivity in the struggle against soil salinization.
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Affiliation(s)
- Panaiotis M. Stassinos
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; (P.M.S.); (C.C.); (S.B.)
| | - Massimiliano Rossi
- PhD Program in Evolutionary Biology and Ecology, Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy;
| | - Ilaria Borromeo
- Department of Physics, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy;
| | - Concetta Capo
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; (P.M.S.); (C.C.); (S.B.)
| | - Simone Beninati
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; (P.M.S.); (C.C.); (S.B.)
| | - Cinzia Forni
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy; (P.M.S.); (C.C.); (S.B.)
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65
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Pottosin I, Olivas-Aguirre M, Dobrovinskaya O, Zepeda-Jazo I, Shabala S. Modulation of Ion Transport Across Plant Membranes by Polyamines: Understanding Specific Modes of Action Under Stress. FRONTIERS IN PLANT SCIENCE 2021; 11:616077. [PMID: 33574826 PMCID: PMC7870501 DOI: 10.3389/fpls.2020.616077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 12/14/2020] [Indexed: 05/20/2023]
Abstract
This work critically discusses the direct and indirect effects of natural polyamines and their catabolites such as reactive oxygen species and γ-aminobutyric acid on the activity of key plant ion-transporting proteins such as plasma membrane H+ and Ca2+ ATPases and K+-selective and cation channels in the plasma membrane and tonoplast, in the context of their involvement in stress responses. Docking analysis predicts a distinct binding for putrescine and longer polyamines within the pore of the vacuolar TPC1/SV channel, one of the key determinants of the cell ionic homeostasis and signaling under stress conditions, and an additional site for spermine, which overlaps with the cytosolic regulatory Ca2+-binding site. Several unresolved problems are summarized, including the correct estimates of the subcellular levels of polyamines and their catabolites, their unexplored effects on nucleotide-gated and glutamate receptor channels of cell membranes and Ca2+-permeable and K+-selective channels in the membranes of plant mitochondria and chloroplasts, and pleiotropic mechanisms of polyamines' action on H+ and Ca2+ pumps.
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Affiliation(s)
- Igor Pottosin
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, China
- Biomedical Center, University of Colima, Colima, Mexico
| | | | | | - Isaac Zepeda-Jazo
- Food Genomics Department, Universidad de La Ciénega del Estado de Michoacán de Ocampo, Sahuayo, Mexico
| | - Sergey Shabala
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, China
- Tasmanian Institute for Agriculture, College of Science and Engineering, University of Tasmania, Hobart, TAS, Australia
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66
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Amin M, Tang S, Shalamanova L, Taylor RL, Wylie S, Abdullah BM, Whitehead KA. Polyamine biomarkers as indicators of human disease. Biomarkers 2021; 26:77-94. [PMID: 33439737 DOI: 10.1080/1354750x.2021.1875506] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The significant increase of periodontitis, chronic kidney disease (CKD), Alzheimer's disease and cancer can be attributed to an ageing population. Each disease produces a range of biomarkers that can be indicative of disease onset and progression. Biomarkers are defined as cellular (intra/extracellular components and whole cells), biochemical (metabolites, ions and toxins) or molecular (nucleic acids, proteins and lipids) alterations which are measurable in biological media such as human tissues, cells or fluids. An interesting group of biomarkers that merit further investigation are the polyamines. Polyamines are a group of molecules consisting of cadaverine, putrescine, spermine and spermidine and have been implicated in the development of a range of systemic diseases, in part due to their production in periodontitis. Cadaverine and putrescine within the periodontal environment have demonstrated cell signalling interfering abilities, by way of leukocyte migration disruption. The polyamines spermine and spermidine in tumour cells have been shown to inhibit cellular apoptosis, effectively prolonging tumorigenesis and continuation of cancer within the host. Polyamine degradation products such as acrolein have been shown to exacerbate renal damage in CKD patients. Thus, the use of such molecules has merit to be utilized in the early indication of such diseases in patients.
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Affiliation(s)
- Mohsin Amin
- Microbiology at Interfaces, Manchester Metropolitan University, Manchester, UK.,Department of Engineering and Technology, Built Environment, Liverpool John Moores University, Liverpool, UK
| | - Shiying Tang
- Microbiology at Interfaces, Manchester Metropolitan University, Manchester, UK.,Department of Life Sciences, Manchester Metropolitan University, Manchester, UK
| | - Liliana Shalamanova
- Department of Life Sciences, Manchester Metropolitan University, Manchester, UK
| | - Rebecca L Taylor
- Department of Life Sciences, Manchester Metropolitan University, Manchester, UK
| | - Stephen Wylie
- Department of Engineering and Technology, Civil Engineering, Liverpool John Moores University, Liverpool, UK
| | - Badr M Abdullah
- Department of Engineering and Technology, Built Environment, Liverpool John Moores University, Liverpool, UK
| | - Kathryn A Whitehead
- Microbiology at Interfaces, Manchester Metropolitan University, Manchester, UK.,Department of Life Sciences, Manchester Metropolitan University, Manchester, UK
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67
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Huang D, Huo J, Liao W. Hydrogen sulfide: Roles in plant abiotic stress response and crosstalk with other signals. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 302:110733. [PMID: 33288031 DOI: 10.1016/j.plantsci.2020.110733] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 10/17/2020] [Accepted: 10/18/2020] [Indexed: 05/27/2023]
Abstract
Hydrogen sulfide (H2S) has been recently recognized as an endogenous gas transmitter alongside nitric oxide and carbon monoxide. Exposure of plants to H2S, for example through applicating H2S donors, reveals that H2S play important roles in plant response to abiotic stresses such as heavy metals, salinity, drought and extreme temperatures. Sodium hydrosulfide is the most widely used donor in plants due to its direct and instantaneous release of H2S, followed by GYY4137. H2S can enhance plant tolerance to salt and heavy metal stresses through regulating Na+/K+ homeostasis and the uptake and transport of metal ions. H2S also promotes the H2S-Cys cycle balance under abiotic stress and enhances its roles in regulation of the antioxidant system, alternative respiratory pathway, and heavy metal chelators synthesis. H2S coordinates with gaseous signal molecules, reactive oxygen species and nitric oxide to respond to stress directly through influencing their generation or competing for the regulation of the downstream signaling. Moreover, H2S interacts with phytohormones including abscisic acid, ethylene, salicylic acid and melatonin as well as polyamines to regulate plant response to abiotic stresses. In this review, the application of H2S donors and their functional mechanism are summarized. We propose promising new research directions, which can lead to new insights on the role of this gastrasmitter during plant growth and development.
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Affiliation(s)
- Dengjing Huang
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
| | - Jianqiang Huo
- Shapotou Desert Research and Experimental Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
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68
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Kiełkowska A, Dziurka M. Changes in polyamine pattern mediates sex differentiation and unisexual flower development in monoecious cucumber (Cucumis sativus L.). PHYSIOLOGIA PLANTARUM 2021; 171:48-65. [PMID: 32840866 DOI: 10.1111/ppl.13197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Changes in the levels of polyamines are associated with fundamental physiological processes such as embryogenesis, induction of flowering, fruit development and ripening, senescence, and responses to environmental stresses, but the role of polyamines in sex differentiation and unisexual flower development has not been deeply studied. To extend the knowledge on the regulatory mechanisms of flowering in monoecious plant (producing unisexual flowers), we investigated the morphogenesis and free polyamine levels in Cucumis sativus during sex differentiation and unisexual flower development in vitro using histocytological and biochemical methods. As shown in our study, floral development in vitro was undisturbed and flowers of both sexes were produced. Sex differentiation relied on preventing the development of generative organs of the opposite sex, as we observed carpel repression in male flowers and stamen repression in female flowers. Pollen viability was negatively correlated with female flower development on the same node. Biochemical analysis revealed increased accumulation of aliphatic amines (tri, tetra-amines) in generative (flower buds and flowers) compare to vegetative (axillary buds and leaves) organs. Undifferentiated floral buds contained elevated levels of agmatine, cadaverine, spermidine and spermine. Sex differentiation was associated with significantly decreased levels of agmatine and cadaverine. Our results showed that female flowers contained higher levels of total polyamine than male flowers. The increased level of cadaverine was associated with macrogametogenesis and female flower maturation. Putrescine was important for male flower development. Such results support the hypothesis that aliphatic amines are involved in unisexual flower development.
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Affiliation(s)
- Agnieszka Kiełkowska
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Krakow, 31-425, Poland
| | - Michał Dziurka
- Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Krakow, 30-239, Poland
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69
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Ke J, Pu WX, Wang H, Liu LH, Sheng S. Phenotypical evidence of effective amelioration of ammonium-inhibited plant (root) growth by exogenous low urea. JOURNAL OF PLANT PHYSIOLOGY 2020; 255:153306. [PMID: 33129078 DOI: 10.1016/j.jplph.2020.153306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 05/27/2023]
Abstract
Ammonium and nitrate are major soil inorganic-nitrogen sources for plant growth, but many species cultivated with even low millimolar NH4+ as a sole N form display a growth retardation. To date, critical biological components and applicable approaches involved in the effective enhancement of NH4+ tolerance remain to be thoroughly explored. Here, we report phenotypical traits of urea-dependent improvement of NH4+-suppressed plant/root growth. Urea at 0.1 mM was sufficient to remarkably stimulate NH4+ (3 mM)-fed cotton growth, showing a 2.5∼4-fold increase in shoot- and root-biomass and total root-length, 20 % higher GS activity, 18 % less NH4+-accumulation in roots, and a comparable plant total-N content compared to the control, implying a novel role for urea in cotton NH4+detoxification. A similar phenomenon was observed in tobacco and rice. Moreover, comparisons between twelve NH4+-grown Arabidopsis accessions revealed a great degree of natural variation in their root-growth response to low urea, with WAR and Blh-1 exhibiting the most significant increase in primary- and lateral-root length and numbers, and Sav-0 and Edi-0 being the most insensitive. Such phenotypical evidence suggests a common ability of plants to accommodate NH4+-stress by responding to exogenous urea, providing a novel aspect for further understanding the process of urea-dependent plant NH4+ tolerance.
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Affiliation(s)
- Jie Ke
- College of Resources and Environmental Sciences, Key Lab of Plant-Soil Interaction, MOE, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing 100193, China
| | - Wen-Xuan Pu
- Tobacco Research Institute of Technology Centre, China Tobacco Hunan Industrial Corporation, Changsha 410007, China
| | - Hui Wang
- College of Resources and Environmental Sciences, Key Lab of Plant-Soil Interaction, MOE, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing 100193, China
| | - Lai-Hua Liu
- College of Resources and Environmental Sciences, Key Lab of Plant-Soil Interaction, MOE, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing 100193, China.
| | - Song Sheng
- College of Resources and Environmental Sciences, Key Lab of Plant-Soil Interaction, MOE, Centre for Resources, Environment and Food Security, China Agricultural University, Beijing 100193, China.
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70
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Espinoza-Culupú A, Vázquez-Ramírez R, Farfán-López M, Mendes E, Notomi Sato M, da Silva Junior PI, Borges MM. Acylpolyamine Mygalin as a TLR4 Antagonist Based on Molecular Docking and In Vitro Analyses. Biomolecules 2020; 10:E1624. [PMID: 33271940 PMCID: PMC7761503 DOI: 10.3390/biom10121624] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 01/18/2023] Open
Abstract
Toll-like receptors (TLRs) are transmembrane proteins that are key regulators of innate and adaptive immune responses, particularly TLR4, and they have been identified as potential drug targets for the treatment of disease. Several low-molecular-weight compounds are being considered as new drug targets for various applications, including as immune modulators. Mygalin, a 417 Da synthetic bis-acylpolyamine, is an analog of spermidine that has microbicidal activity. In this study, we investigated the effect of mygalin on the innate immune response based on a virtual screening (VS) and molecular docking analysis. Bone marrow-derived macrophages and the cell lines J774A.1 and RAW 264.7 stimulated with lipopolysaccharide (LPS) were used to confirm the data obtained in silico. Virtual screening and molecular docking suggested that mygalin binds to TLR4 via the protein myeloid differentiation factor 2 (MD-2) and LPS. Macrophages stimulated by mygalin plus LPS showed suppressed gene expression of tumor necrosis factor (TNF-α), interleukine 6 (IL-6), cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS), as well as inhibition of signaling protein p65 of the nuclear factor κB (NF-κB), resulting in decreased production of nitric oxide (NO) and TNF-α. These results indicate that mygalin has anti-inflammatory potential, being an attractive option to be explored. In addition, we reinforce the importance of virtual screening analysis to assist in the discovery of new drugs.
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Affiliation(s)
- Abraham Espinoza-Culupú
- Interunits Graduate Program in Biotechnology, USP/IBu/IPT, São Paulo 01000-000, Brazil; (A.E.-C.); (P.I.d.S.J.)
- Bacteriology Laboratory, Butantan Institute, São Paulo 01000-000, Brazil;
| | - Ricardo Vázquez-Ramírez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 00-16, Mexico;
| | - Mariella Farfán-López
- Microbiology Molecular and Biotechnology Laboratory, Universidad Nacional Mayor de San Marcos, Lima District 15081, Peru;
| | - Elizabeth Mendes
- Bacteriology Laboratory, Butantan Institute, São Paulo 01000-000, Brazil;
| | - Maria Notomi Sato
- Laboratory of Dermatology and Immunodeficiencies, Medical School, University of São Paulo, São Paulo 01000-000, Brazil;
| | - Pedro Ismael da Silva Junior
- Interunits Graduate Program in Biotechnology, USP/IBu/IPT, São Paulo 01000-000, Brazil; (A.E.-C.); (P.I.d.S.J.)
- Laboratory for Applied Toxinology (LETA), Butantan Institute, São Paulo 01000-000, Brazil
| | - Monamaris Marques Borges
- Interunits Graduate Program in Biotechnology, USP/IBu/IPT, São Paulo 01000-000, Brazil; (A.E.-C.); (P.I.d.S.J.)
- Bacteriology Laboratory, Butantan Institute, São Paulo 01000-000, Brazil;
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71
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Plant-Growth-Promoting Bacteria Mitigating Soil Salinity Stress in Plants. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10207326] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Soil deterioration has led to problems with the nutrition of the world’s population. As one of the most serious stressors, soil salinization has a negative effect on the quantity and quality of agricultural production, drawing attention to the need for environmentally friendly technologies to overcome the adverse effects. The use of plant-growth-promoting bacteria (PGPB) can be a key factor in reducing salinity stress in plants as they are already introduced in practice. Plants having halotolerant PGPB in their root surroundings improve in diverse morphological, physiological, and biochemical aspects due to their multiple plant-growth-promoting traits. These beneficial effects are related to the excretion of bacterial phytohormones and modulation of their expression, improvement of the availability of soil nutrients, and the release of organic compounds that modify plant rhizosphere and function as signaling molecules, thus contributing to the plant’s salinity tolerance. This review aims to elucidate mechanisms by which PGPB are able to increase plant tolerance under soil salinity.
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72
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Zhu H, Tian W, Zhu X, Tang X, Wu L, Hu X, Jin S. Ectopic expression of GhSAMDC 1 improved plant vegetative growth and early flowering through conversion of spermidine to spermine in tobacco. Sci Rep 2020; 10:14418. [PMID: 32879344 PMCID: PMC7468128 DOI: 10.1038/s41598-020-71405-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/14/2020] [Indexed: 01/11/2023] Open
Abstract
Polyamines play essential roles in plant development and various stress responses. In this study, one of the cotton S-adenosylmethionine decarboxylase (SAMDC) genes, GhSAMDC1, was constructed in the pGWB17 vector and overexpressed in tobacco. Leaf area and plant height increased 25.9-36.6% and 15.0-27.0%, respectively, compared to the wild type, and flowering time was advanced by 5 days in transgenic tobacco lines. Polyamine and gene expression analyses demonstrated that a decrease in spermidine and an increase in total polyamines and spermine might be regulated by NtSPDS4 and NtSPMS in transgenic plants. Furthermore, exogenous spermidine, spermine and spermidine synthesis inhibitor dicyclohexylamine were used for complementary tests, which resulted in small leaves and dwarf plants, big leaves and early flowering, and big leaves and dwarf plants, respectively. These results indicate that spermidine and spermine are mainly involved in the vegetative growth and early flowering stages, respectively. Expression analysis of flowering-related genes suggested that NtSOC1, NtAP1, NtNFL1 and NtFT4 were upregulated in transgenic plants. In conclusion, ectopic GhSAMDC1 is involved in the conversion of spermidine to spermine, resulting in rapid vegetative growth and early flowering in tobacco, which could be applied to genetically improve plants.
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Affiliation(s)
- Huaguo Zhu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China.
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, 438000, Huanggang, Hubei, China.
| | - Wengang Tian
- College of Agronomy, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Xuefeng Zhu
- College of Agronomy, Shihezi University, Shihezi, 832000, Xinjiang, China
| | - Xinxin Tang
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, 438000, Huanggang, Hubei, China
| | - Lan Wu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, 438000, Huanggang, Hubei, China
| | - Xiaoming Hu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, Hubei, China
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, 438000, Huanggang, Hubei, China
| | - Shuangxia Jin
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
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Adamipour N, Khosh-Khui M, Salehi H, Razi H, Karami A, Moghadam A. Regulation of stomatal aperture in response to drought stress mediating with polyamines, nitric oxide synthase and hydrogen peroxide in Rosa canina L. PLANT SIGNALING & BEHAVIOR 2020; 15:1790844. [PMID: 32657206 PMCID: PMC8550291 DOI: 10.1080/15592324.2020.1790844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 05/31/2023]
Abstract
To assess the role of genes involved in polyamines synthesis, nitric oxide synthase (NOS), copper amine oxidase activity (CuAO) and hydrogen peroxide (H2O2) in regulation of stomatal aperture to drought stress in Rosa canina L., a study was performed at three irrigating levels (25%, 50%, and 100% field capacity) with three replications at 1, 3, 6 and 12 days. The results showed that putrescine (Put) accumulation occurred under both 50% and 25% FC at 1 d. Furthermore, the role of the Put direct biosynthesis pathway ornithine decarboxylase (ODC) was more effective under 50% FC whereas in the 25% FC the Put indirect production pathway (agmatine iminohydrolase (AIH), N-carbamoyl putrescine amidohydrolase (CPA) and arginine decarboxylase (ADC)) was more effective. HPLC results showed that the accumulation of spermidine (Spd) and spermine (Spm) is consistent with the expression of S-adenosyl methionine decarboxylase (SAMDC), spermidine synthase (SPDS) and spermine synthase (SPMS) genes. Spd accumulation under both 50% and 25% FC occurred on the 3 d and then decreased in the other days. Spm content showed an increasing trend from 6 d under 50% FC and from 3 d under 25% FC. Our results suggest that among the measured polyamines, Put oxidation through CuAO activity increased resulted in an increase in H2O2 production. The H2O2 accumulation also as a secondary messenger led to enhance in NOS gene expression. Increase in NOS gene expression can act as a signal resulting in stomatal closure.
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Affiliation(s)
- Nader Adamipour
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Morteza Khosh-Khui
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Hassan Salehi
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Hooman Razi
- Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Akbar Karami
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Ali Moghadam
- Institute of Biotechnology, College of Agriculture, Shiraz University, Shiraz, Iran
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74
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Quantum mechanical study of human carbonic anhydrase II in complex with polyamines as novel inhibitors: Kinetic and thermodynamic investigation. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112911] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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75
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Gholizadeh F, Mirzaghaderi G. Genome-wide analysis of the polyamine oxidase gene family in wheat (Triticum aestivum L.) reveals involvement in temperature stress response. PLoS One 2020; 15:e0236226. [PMID: 32866160 PMCID: PMC7458318 DOI: 10.1371/journal.pone.0236226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/08/2020] [Indexed: 11/18/2022] Open
Abstract
Amine oxidases (AOs) including copper containing amine oxidases (CuAOs) and FAD-dependent polyamine oxidases (PAOs) are associated with polyamine catabolism in the peroxisome, apoplast and cytoplasm and play an essential role in growth and developmental processes and response to biotic and abiotic stresses. Here, we identified PAO genes in common wheat (Triticum aestivum), T. urartu and Aegilops tauschii and reported the genome organization, evolutionary features and expression profiles of the wheat PAO genes (TaPAO). Expression analysis using publicly available RNASeq data showed that TaPAO genes are expressed redundantly in various tissues and developmental stages. A large percentage of TaPAOs respond significantly to abiotic stresses, especially temperature (i.e. heat and cold stress). Some TaPAOs were also involved in response to other stresses such as powdery mildew, stripe rust and Fusarium infection. Overall, TaPAOs may have various functions in stress tolerances responses, and play vital roles in different tissues and developmental stages. Our results provided a reference for further functional investigation of TaPAO proteins.
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Affiliation(s)
- Fatemeh Gholizadeh
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
| | - Ghader Mirzaghaderi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
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Red maple (Acer rubrum L.) trees demonstrate acclimation to urban conditions in deciduous forests embedded in cities. PLoS One 2020; 15:e0236313. [PMID: 32706781 PMCID: PMC7380610 DOI: 10.1371/journal.pone.0236313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/02/2020] [Indexed: 12/26/2022] Open
Abstract
The impacts of urbanization, such as urban heat island (UHI) and nutrient loads, can influence tree function through altered physiology and metabolism and stress response, which has implications for urban forest health in cities across the world. Our goal was to compare growth-stimulating and stress-mitigating acclimation patterns of red maple (Acer rubrum) trees in deciduous forests embedded in a small (Newark, DE, US) and a large (Philadelphia, PA, US) city. The study was conducted in a long-term urban forest network on seventy-nine mature red maple trees spanning ten forests across Newark and Philadelphia. We hypothesized that red maples in Philadelphia forests compared to Newark forests will be healthier and more acclimated to warmer temperatures, elevated CO2 concentrations and reactive nitrogen (Nr) deposition, and higher nutrient/heavy metal loads. Therefore, these red maples will have higher foliar pigments, nutrients, and stress-indicating elements, enriched δ15N isotopes and increased free polyamines and amino acids to support a growth-stimulating and stress-induced response to urbanization. Our results indicate red maples are potentially growth-stimulated and stress-acclimated in Philadelphia forests experiencing a greater magnitude of urban intensity. Red maples in Philadelphia forests contained higher concentrations of foliar chlorophyll, %N, δ15N, and nutrients than those in Newark forests. Similarly, lower foliar magnesium and manganese, and higher foliar zinc, cadmium, lead, and aluminum reflected the difference in soil biogeochemistry in Philadelphia forests. Accumulation patterns of foliar free amino acids, polyamines, phosphorous, and potassium ions in red maples in Philadelphia forests shows a reallocation in cellular metabolism and nutrient uptake pathways responsible for physiological acclimation. Our results suggest the approach used here can serve as a model for investigating ‘plant physiology’ and the use of urban trees as a biomonitor of the impacts of ‘urban pollution’ on urban forests. The results suggest that cellular oxidative stress in trees caused by pollutant uptake is mitigated by the accumulation of free amino acids, polyamines, and nutrients in a larger city. Our study provides a framework for determining whether trees respond to complex urban environments through stress memory and/or acclimation.
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Farvardin A, González-Hernández AI, Llorens E, García-Agustín P, Scalschi L, Vicedo B. The Apoplast: A Key Player in Plant Survival. Antioxidants (Basel) 2020; 9:E604. [PMID: 32664231 PMCID: PMC7402137 DOI: 10.3390/antiox9070604] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 12/19/2022] Open
Abstract
The apoplast comprises the intercellular space, the cell walls, and the xylem. Important functions for the plant, such as nutrient and water transport, cellulose synthesis, and the synthesis of molecules involved in plant defense against both biotic and abiotic stresses, take place in it. The most important molecules are ROS, antioxidants, proteins, and hormones. Even though only a small quantity of ROS is localized within the apoplast, apoplastic ROS have an important role in plant development and plant responses to various stress conditions. In the apoplast, like in the intracellular cell compartments, a specific set of antioxidants can be found that can detoxify the different types of ROS produced in it. These scavenging ROS components confer stress tolerance and avoid cellular damage. Moreover, the production and accumulation of proteins and peptides in the apoplast take place in response to various stresses. Hormones are also present in the apoplast where they perform important functions. In addition, the apoplast is also the space where microbe-associated molecular Patterns (MAMPs) are secreted by pathogens. In summary, the diversity of molecules found in the apoplast highlights its importance in the survival of plant cells.
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Affiliation(s)
- Atefeh Farvardin
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
| | - Ana Isabel González-Hernández
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
| | - Eugenio Llorens
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
| | - Pilar García-Agustín
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
| | - Loredana Scalschi
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
| | - Begonya Vicedo
- Grupo de Bioquímica y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I de Castellón, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Spain
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78
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Cigdem B, Bolayir A, Celik VK, Kapancik S, Kilicgun H, Gokce SF, Gulunay A. The Role of Reduced Polyamine Synthesis in Ischemic Stroke. NEUROCHEM J+ 2020. [DOI: 10.1134/s1819712420020038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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79
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Souza SCR, Souza LA, Schiavinato MA, de Oliveira Silva FM, de Andrade SAL. Zinc toxicity in seedlings of three trees from the Fabaceae associated with arbuscular mycorrhizal fungi. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 195:110450. [PMID: 32197181 DOI: 10.1016/j.ecoenv.2020.110450] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/03/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Due to diverse human activities zinc (Zn) may reach phytotoxic levels in the soil. Here, we evaluated the differential sensibility of three Brazilian tree species from the Fabaceae to increasing soil Zn concentrations and its physiological response to cope with excess Zn. A greenhouse experiment was conducted with the species: Mimosa caesalpiniaefolia, Erythrina speciosa and Schizolobium parahyba, and the addition of 0, 200, 400 and 600 mg Zn kg-1 to the soil. Plants were harvested after three months of cultivation, and growth, root symbiosis, biochemical markers and elemental composition were analyzed. Soil Zn addition reduced seedling growth, irrespective of the species, with a strong reduction in M. caesalpiniaefolia. Regarding root symbiosis, in N2-fixing species, nitrogenase activity was reduced by the highest Zn concentrations. Zn addition caused plants nutritional imbalances, mainly in roots. The content of photosynthetic pigments in leaves decreased up to 40%, suggesting that high Zn contents interfered with its biosynthesis, and altered the content of foliar polyamines and free amino acids, depending on the species and the soil Zn concentration. Zn toxicity in M. caesalpiniaefolia plants was observed at available soil Zn concentrations greater than 100 mg kg-1 (DTPA-extractable), being the most sensitive species and E. speciosa was moderately sensitive. S. parahyba was a moderately tolerant species, which seems to be related to polyamines accumulation and to mycorrhizal association. This last species has the potential for revegetation of areas with moderately high soil Zn concentration and for phytostabilization purposes. Future research evaluating the tolerance to multiple metal stress under field conditions should confirm S. parayba suitability in Zn contaminated areas of tropical regions.
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Affiliation(s)
- Sarah C R Souza
- Department of Plant Biology, Institute of Biology, University of Campinas, PO Box 6109, 13083-970, Campinas, São Paulo, Brazil; Department of Botany, Federal University of São Carlos, PO Box 676, 13565-905, São Carlos, São Paulo, Brazil.
| | - Lucas A Souza
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde , Polo de Inovação em Bioenergia e Grãos, Rio Verde, GO, Brazil
| | - Marlene A Schiavinato
- Department of Plant Biology, Institute of Biology, University of Campinas, PO Box 6109, 13083-970, Campinas, São Paulo, Brazil
| | - Franklin M de Oliveira Silva
- Department of Plant Biology, Institute of Biology, University of Campinas, PO Box 6109, 13083-970, Campinas, São Paulo, Brazil
| | - Sara A L de Andrade
- Department of Plant Biology, Institute of Biology, University of Campinas, PO Box 6109, 13083-970, Campinas, São Paulo, Brazil.
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80
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Takamura H, Motose H, Otsu T, Shinohara S, Kouno R, Kadota I, Takahashi T. Chemical Synthesis and Biological Effect on Xylem Formation of Xylemin and Its Analogues. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hiroyoshi Takamura
- Department of Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Hiroyasu Motose
- Department of Biological Science; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Taichi Otsu
- Department of Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Shiori Shinohara
- Department of Biological Science; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Ryugo Kouno
- Department of Biological Science; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Isao Kadota
- Department of Chemistry; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
| | - Taku Takahashi
- Department of Biological Science; Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushimanaka 700-8530 Kita-ku Okayama Japan
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81
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Lou YR, Ahmed S, Yan J, Adio AM, Powell HM, Morris PF, Jander G. Arabidopsis ADC1 functions as an N δ -acetylornithine decarboxylase. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:601-613. [PMID: 31081586 DOI: 10.1111/jipb.12821] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 04/28/2019] [Indexed: 06/09/2023]
Abstract
Polyamines are small aliphatic amines found in almost all organisms, ranging from bacteria to plants and animals. In most plants, putrescine, the metabolic precursor for longer polyamines, such as spermidine and spermine, is produced from arginine, with either agmatine or ornithine as intermediates. Here we show that Arabidopsis thaliana (Arabidopsis) arginine decarboxylase 1 (ADC1), one of the two known arginine decarboxylases in Arabidopsis, not only synthesizes agmatine from arginine, but also converts Nδ -acetylornithine to N-acetylputrescine. Phylogenetic analyses indicate that duplication and neofunctionalization of ADC1 and NATA1, the enzymes that synthesize Nδ -acetylornithine in Arabidopsis, co-occur in a small number of related species in the Brassicaceae. Unlike ADC2, which is localized in the chloroplasts, ADC1 is in the endoplasmic reticulum together with NATA1, an indication that these two enzymes have access to the same substrate pool. Together, these results are consistent with a model whereby NATA1 and ADC1 together provide a pathway for the synthesis of N-acetylputrescine in Arabidopsis.
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Affiliation(s)
- Yann-Ru Lou
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Sheaza Ahmed
- Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, 43403, USA
| | - Jian Yan
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, 510642, China
| | - Adewale M Adio
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Hannah M Powell
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Paul F Morris
- Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, 43403, USA
| | - Georg Jander
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
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82
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Killiny N, Nehela Y. Citrus Polyamines: Structure, Biosynthesis, and Physiological Functions. PLANTS 2020; 9:plants9040426. [PMID: 32244406 PMCID: PMC7238152 DOI: 10.3390/plants9040426] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/17/2020] [Accepted: 03/24/2020] [Indexed: 01/10/2023]
Abstract
Polyamines (PAs) are ubiquitous biogenic amines found in all living organisms from bacteria to Archaea, and Eukaryotes including plants and animals. Since the first description of putrescine conjugate, feruloyl-putrescine (originally called subaphylline), from grapefruit leaves and juice, many research studies have highlighted the importance of PAs in growth, development, and other physiological processes in citrus plants. PAs appear to be involved in a wide range of physiological processes in citrus plants; however, their exact roles are not fully understood. Accordingly, in the present review, we discuss the biosynthesis of PAs in citrus plants, with an emphasis on the recent advances in identifying and characterizing PAs-biosynthetic genes and other upstream regulatory genes involved in transcriptional regulation of PAs metabolism. In addition, we will discuss the recent metabolic, genetic, and molecular evidence illustrating the roles of PAs metabolism in citrus physiology including somatic embryogenesis; root system formation, morphology, and architecture; plant growth and shoot system architecture; inflorescence, flowering, and flowering-associated events; fruit set, development, and quality; stomatal closure and gas-exchange; and chlorophyll fluorescence and photosynthesis. We believe that the molecular and biochemical understanding of PAs metabolism and their physiological roles in citrus plants will help citrus breeding programs to enhance tolerance to biotic and abiotic stresses and provide bases for further research into potential applications.
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Affiliation(s)
- Nabil Killiny
- Citrus Research and Education Center and Department of Plant Pathology, IFAS, University of Florida, Lake Alfred, FL 33850, USA;
- Correspondence: ; Tel.: +1-863-956-8833
| | - Yasser Nehela
- Citrus Research and Education Center and Department of Plant Pathology, IFAS, University of Florida, Lake Alfred, FL 33850, USA;
- Department of Agricultural Botany, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt
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83
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Adamipour N, Khosh-Khui M, Salehi H, Razi H, Karami A, Moghadam A. Role of genes and metabolites involved in polyamines synthesis pathways and nitric oxide synthase in stomatal closure on Rosa damascena Mill. under drought stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 148:53-61. [PMID: 31927272 DOI: 10.1016/j.plaphy.2019.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 05/20/2023]
Abstract
In order to evaluate the genes involved in polyamines synthesis pathway and the role of nitric oxide synthase (NOS) and H2O2 in stomatal closure under drought stress, a research conducted with three irrigation levels (100, 50 and 25% field capacity) at 1, 3, 6 and 12 days on Rosa damascena Mill. HPLC and qPCR results showed that putrescine (Put) accumulation occurred at first day in both 50 and 25% of field capacity and then decreased the other days. Furthermore, Put accumulation in the indirect pathway (ADC, AIH and CPA) was more effective related to the direct pathway (ODC) under severe stress. Increased expression of genes involved in production of spermidine (Spd) and spermine (Spm) i.e., SAMDC, SPDS and SPMS correlated with the highest accumulation of Spd and Spm under 50% FC at 6 d and 25% FC at 12 d, respectively. Moreover, results showed that Put reduction simultaneously accumulated H2O2, which subsequently increased NOS expression suggesting a key signal for stomatal closure.
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Affiliation(s)
- Nader Adamipour
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran.
| | - Morteza Khosh-Khui
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Hassan Salehi
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Hooman Razi
- Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Akbar Karami
- Department of Horticulture Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - Ali Moghadam
- Institute of Biotechnology, College of Agriculture, Shiraz University, Shiraz, Iran
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84
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Abstract
HVPE is an excellent and often overlooked method for obtaining objective and meaningful information about cell-wall "building blocks" and their metabolic precursors. It provides not only a means of analysis of known compounds but also an insight into the charge and/or mass of any unfamiliar compounds that may be encountered. It can be used preparatively or analytically. It can achieve either "class separations" (e.g., delivering all hexose monophosphates into a single pool) or the resolution of different compounds within a given class (e.g., ADP-Glc from UDP-Glc; or GlcA from GalA).All information from HVPE about charge and mass can be obtained on minute traces of analytes, especially those that have been radiolabeled, for example by in-vivo feeding of a 3H- or 14C-labeled precursor. HVPE does not usually damage the substance under investigation (unless staining is used), so samples of interest can be eluted intact from the paper ready for further analysis. Although HVPE is a technique that has been available for several decades, recently it has tended to be sidelined, possible because the apparatus is not widely available. Interested scientists are invited to contact the author about the possibility of accessing the Edinburgh apparatus.
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Affiliation(s)
- Stephen C Fry
- The Edinburgh Cell Wall Group, Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh, UK.
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85
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Ozbay A, Gozutok A. Density functional calculations on the structural and vibrational properties of 1,4-diaminobutane. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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86
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Toldi D, Gyugos M, Darkó É, Szalai G, Gulyás Z, Gierczik K, Székely A, Boldizsár Á, Galiba G, Müller M, Simon-Sarkadi L, Kocsy G. Light intensity and spectrum affect metabolism of glutathione and amino acids at transcriptional level. PLoS One 2019; 14:e0227271. [PMID: 31891631 PMCID: PMC6938384 DOI: 10.1371/journal.pone.0227271] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 12/16/2019] [Indexed: 11/19/2022] Open
Abstract
The effects of various light intensities and spectral compositions on glutathione and amino acid metabolism were compared in wheat. Increase of light intensity (low-normal-high) was accompanied by a simultaneous increase in the shoot fresh weight, photosynthetic activity and glutathione content. These parameters were also affected by the modification of the ratios of blue, red and far-red components (referred to as blue, pink and far-red lights) compared to normal white light. The photosynthetic activity and the glutathione content decreased to 50% and the percentage of glutathione disulfide (characterising the redox state of the tissues) in the total glutathione pool doubled in far-red light. The alterations in the level and redox state of the antioxidant glutathione resulted from the effect of light on its synthesis as it could be concluded from the changes in the transcription of the related genes. Modification of the light conditions also greatly affected both the amount and the ratio of free amino acids. The total free amino acid content was greatly induced by the increase of light intensity and was greatly reduced in pink light compared to the normal intensity white light. The concentrations of most amino acids were similarly affected by the light conditions as described for the total free amino acid content but Pro, Met, Thr, ornithine and cystathionine showed unique response to light. As observed for the amino acid levels, the expression of several genes involved in their metabolism also enhanced due to increased light intensity. Interestingly, the modification of the spectrum greatly inhibited the expression of most of these genes. Correlation analysis of the investigated parameters indicates that changes in the light conditions may affect growth through the adjustment of photosynthesis and the glutathione-dependent redox state of the tissues. This process modifies the metabolism of glutathione and amino acids at transcriptional level.
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Affiliation(s)
- Dávid Toldi
- Department of Food Chemistry and Nutrition, Szent István University, Budapest, Hungary
- Doctoral School for Food Sciences, Szent István University, Budapest, Hungary
| | - Mónika Gyugos
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Éva Darkó
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Gabriella Szalai
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Zsolt Gulyás
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Krisztián Gierczik
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - András Székely
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Ákos Boldizsár
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
| | - Gábor Galiba
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
- Festetics Doctoral School, Georgikon Faculty, University of Pannonia, Keszthely, Hungary
| | - Maria Müller
- Institute of Biology, Department of Plant Sciences, University of Graz, Graz, Austria
| | - Livia Simon-Sarkadi
- Department of Food Chemistry and Nutrition, Szent István University, Budapest, Hungary
- Doctoral School for Food Sciences, Szent István University, Budapest, Hungary
| | - Gábor Kocsy
- Agricultural Institute, Centre for Agricultural Research, Martonvásár, Hungary
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87
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Li Y, Ma Y, Zhang T, Bi Y, Wang Y, Prusky D. Exogenous polyamines enhance resistance to Alternaria alternata by modulating redox homeostasis in apricot fruit. Food Chem 2019; 301:125303. [DOI: 10.1016/j.foodchem.2019.125303] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 11/30/2022]
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Hussain A, Nazir F, Fariduddin Q. Polyamines (spermidine and putrescine) mitigate the adverse effects of manganese induced toxicity through improved antioxidant system and photosynthetic attributes in Brassica juncea. CHEMOSPHERE 2019; 236:124830. [PMID: 31549671 DOI: 10.1016/j.chemosphere.2019.124830] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 05/09/2023]
Abstract
Polyamines (PAs) are recognized as plant growth regulators that are involved in the stress management in various crops. In the current study, mitigative roles of spermidine (Spd) and putrescine (Put) were assessed in manganese (Mn) stressed Brassica juncea plants. Spd or Put (1.0 mM) were applied to the foliage of Brassica juncea at 35 days after sowing (DAS) grown in the presence of Mn (30 or 150 mg kg-1 soil). The higher level of Mn (150 mg kg-1) diminished photosynthetic attributes and growth, enhanced the production of reactive oxygen species (ROS) like hydrogen peroxide (H2O2) and superoxide anion ( [Formula: see text] ) content, affected stomatal movement and increased the Mn concentration in roots and shoots of the plant at 45 DAS, whereas it enhanced the activities of various antioxidant enzymes and proline content in the foliage of Brassica juncea plants. On the other hand, treatment of PAs (Spd or Put) to Mn stressed as well as non-stressed plants resulted in a remarkable improvement in the stomatal behaviour, photosynthetic attributes, growth and biochemical traits, decreased the production of ROS (H2O2 and [Formula: see text] ) and concentration of Mn in different parts of plant. It is concluded that out of the two polyamines (Spd or Put), Spd proved more efficient and enhanced growth, photosynthesis, and metabolic state of the plants which bestowed tolerance and helped the plants to cope efficiently under Mn stress.
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Affiliation(s)
- Anjuman Hussain
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202 002, India
| | - Faroza Nazir
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202 002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202 002, India.
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89
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Abstract
Drought stress affects growth, morphological and biochemical properties in plants. To develop resistance and adapt to drought, plants need metabolic changes. Adaptations to stress involve changes to gene expression that activate metabolic processes that promote drought resistance and that may include biosynthesis and accumulation of specialized metabolites. Such adaptations in specialized metabolism may be important mechanisms leading to plant stress resistance and involve production of phenolics, flavonoids, terpenoid and nitrogen containing compounds that are species and genotype specific. Most plants having special metabolites to adapt to drought stress belong to different botanical families. C3, C4 and CAM plants, apply both morphological and metabolic mechanisms to adapt to drought as well as to accumulate specialized metabolites. Generally, medicinal plants increase their functional metabolites content, when exposed to drought stress. During drought stress, transcription factors and related pathways for biosynthesis of phenolics, flavonoids, anthocyanins as well as for stress jasmonate and abscisic acid stress hormones are activated.
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Affiliation(s)
- Seyed Morteza Zahedi
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
| | - Mahdieh Karimi
- Department of Horticultural Sciences, Bu-Ali Sina University, Hamedan, Iran
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90
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Kolupaev YE, Kokorev AI, Yastreb TO, Horielova EI. Hydrogen peroxide as a signal mediator at inducing heat resistance in wheat seedlings by putrescine. UKRAINIAN BIOCHEMICAL JOURNAL 2019. [DOI: 10.15407/ubj91.06.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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91
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Ingallina C, Capitani D, Mannina L, Carradori S, Locatelli M, Di Sotto A, Di Giacomo S, Toniolo C, Pasqua G, Valletta A, Simonetti G, Parroni A, Beccaccioli M, Vinci G, Rapa M, Giusti AM, Fraschetti C, Filippi A, Maccelli A, Crestoni ME, Fornarini S, Sobolev AP. Phytochemical and biological characterization of Italian "sedano bianco di Sperlonga" Protected Geographical Indication celery ecotype: A multimethodological approach. Food Chem 2019; 309:125649. [PMID: 31718835 DOI: 10.1016/j.foodchem.2019.125649] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 09/24/2019] [Accepted: 10/03/2019] [Indexed: 12/15/2022]
Abstract
Celery is a widely used vegetable known for its peculiar sensorial and nutritional properties. Here, the white celery (Apium graveolens L.) "sedano bianco di Sperlonga" PGI ecotype was investigated to obtain the metabolic profile of its edible parts (blade leaves and petioles) also related to quality, freshness and biological properties. A multi-methodological approach, including NMR, MS, HPLC-PDA, GC-MS and spectrophotometric analyses, was proposed to analyse celery extracts. Sugars, polyalcohols, amino acids, organic acids, phenols, sterols, fatty acids, phthalides, chlorophylls, tannins and flavonoids were detected in different concentrations in blade leaf and petiole extracts, indicating celery parts as nutraceutical sources. The presence of some phenols in celery extracts was here reported for the first time. Low contents of biogenic amines and mycotoxins confirmed celery quality and freshness. Regarding the biological properties, ethanolic celery extracts inhibited the oxidative-mediated DNA damage induced by tert-butylhydroperoxide and scavenged DPPH and ABTS radicals.
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Affiliation(s)
- Cinzia Ingallina
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Donatella Capitani
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Luisa Mannina
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy; Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Simone Carradori
- Dipartimento di Farmacia, Università di Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy.
| | - Marcello Locatelli
- Dipartimento di Farmacia, Università di Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy.
| | - Antonella Di Sotto
- Dipartimento di Fisiologia e Farmacologia "V. Ersparmer", Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Silvia Di Giacomo
- Dipartimento di Fisiologia e Farmacologia "V. Ersparmer", Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Chiara Toniolo
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Gabriella Pasqua
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Alessio Valletta
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Giovanna Simonetti
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Alessia Parroni
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Marzia Beccaccioli
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Giuliana Vinci
- Dipartimento di Management, Laboratorio di Merceologia, Sapienza Università di Roma, Via del Castro Laurenziano 9, 00161 Rome, Italy.
| | - Mattia Rapa
- Dipartimento di Management, Laboratorio di Merceologia, Sapienza Università di Roma, Via del Castro Laurenziano 9, 00161 Rome, Italy.
| | - Anna Maria Giusti
- Dipartimento di Medicina Sperimentale Sapienza, Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Caterina Fraschetti
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Antonello Filippi
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Alessandro Maccelli
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Maria Elisa Crestoni
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Simonetta Fornarini
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
| | - Anatoly P Sobolev
- Istituto per i Sistemi Biologici, Laboratorio di Risonanza Magnetica "Annalaura Segre", CNR, 00015 Monterotondo (Rome), Italy.
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92
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Shinohara S, Okamoto T, Motose H, Takahashi T. Salt hypersensitivity is associated with excessive xylem development in a thermospermine-deficient mutant of Arabidopsis thaliana. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:374-383. [PMID: 31257654 DOI: 10.1111/tpj.14448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 05/21/2023]
Abstract
In Arabidopsis, spermine is produced in most tissues and has been implicated in stress response, while its structural isomer thermospermine is only in xylem precursor cells. Studies on acaulis5 (acl5), a mutant defective in the biosynthesis of thermospermine, have revealed that thermospermine plays a repressive role in xylem development through enhancement of mRNA translation of the SAC51 family. In contrast, the pao5 mutant defective in the degradation of thermospermine has high levels of thermospermine and shows increased salt tolerance, suggesting a role of thermospermine in salt stress response. Here we compared acl5 with a mutant of spermine synthase, spms, in terms of abiotic stress tolerance and found that acl5 was much more sensitive to sodium than the wild-type and spms. A double-mutant of acl5 and sac51-d, which suppresses the excessive xylem phenotype of acl5, recovered normal sensitivity, while a quadruple T-DNA insertion mutant of the SAC51 family, which has an increased thermospermine level but shows excessive xylem development, showed increased salt sensitivity, unlike pao5. Together with the result that the salt tolerance of both wild-type and acl5 seedlings was improved by long-term treatment with thermospermine, we suggest a correlation of the salt tolerance with reduced xylem development rather than with the thermospermine level. We further found that the mutants containing high thermospermine levels showed increased tolerance to drought and heat stress, suggesting another role of thermospermine that may be common with that of spermine and secondary to that in restricting excess xylem development associated with salt hypersensitivity.
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Affiliation(s)
- Shiori Shinohara
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University, 700-8530, Okayama, Japan
| | - Takashi Okamoto
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University, 700-8530, Okayama, Japan
| | - Hiroyasu Motose
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University, 700-8530, Okayama, Japan
| | - Taku Takahashi
- Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University, 700-8530, Okayama, Japan
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93
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Nambeesan SU, Mattoo AK, Handa AK. Nexus Between Spermidine and Floral Organ Identity and Fruit/Seed Set in Tomato. FRONTIERS IN PLANT SCIENCE 2019; 10:1033. [PMID: 31608074 PMCID: PMC6774279 DOI: 10.3389/fpls.2019.01033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
Polyamines (PAs) constituting putrescine (Put), spermidine (Spd), and spermine (Spm) are ubiquitous in all organisms and play essential roles in the growth and developmental processes in living organisms, including plants. Evidences obtained through genetic, biochemical, and transgenic approaches suggest a tight homeostasis for cellular PA levels. Altered cellular PA homeostasis is associated with abnormal phenotypes. However, the mechanisms involved for these abnormalities are not yet fully understood, nor is it known whether cellular ratios of different polyamines play any role(s) in specific plant processes. We expressed a yeast spermidine synthase gene (ySpdSyn) under a constitutive promoter CaMV35S in tomato and studied the different phenotypes that developed. The constitutive expression of ySpdSyn resulted in variable flower phenotypes in independent transgenic lines, some of which lacked fruit and seed set. Quantification of PA levels in the developing flowers showed that the transgenic plants without fruit and seed set had significantly reduced Spd levels as well as low Spd/Put ratio compared to the transgenic lines with normal fruit and seed set. Transcript levels of SlDELLA, GA-20oxidase-1, and GA-3oxidase-2, which impact gibberellin (GA) metabolism and signaling, were significantly reduced in bud tissue of transgenic lines that lacked fruit and seed set. These findings indicate that PAs, particularly Spd, impact floral organ identity and fruit set in tomato involving GA metabolism and signaling. Furthermore, we suggest that a nexus exists between PA ratios and developmental programs in plants.
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Affiliation(s)
| | - Autar K. Mattoo
- Sustainable Agricultural Systems Laboratory, USDA-ARS, Beltsville Agricultural Research Center, Beltsville, MD, United States
| | - Avtar K. Handa
- Center of Plant Biology, Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States
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94
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The Interplay among Polyamines and Nitrogen in Plant Stress Responses. PLANTS 2019; 8:plants8090315. [PMID: 31480342 PMCID: PMC6784213 DOI: 10.3390/plants8090315] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 12/27/2022]
Abstract
The interplay between polyamines (PAs) and nitrogen (N) is emerging as a key factor in plant response to abiotic and biotic stresses. The PA/N interplay in plants connects N metabolism, carbon (C) fixation, and secondary metabolism pathways. Glutamate, a pivotal N-containing molecule, is responsible for the biosynthesis of proline (Pro), arginine (Arg) and ornithine (Orn) and constitutes a main common pathway for PAs and C/N assimilation/incorporation implicated in various stresses. PAs and their derivatives are important signaling molecules, as they act largely by protecting and preserving the function/structure of cells in response to stresses. Use of different research approaches, such as generation of transgenic plants with modified intracellular N and PA homeostasis, has helped to elucidate a plethora of PA roles, underpinning their function as a major player in plant stress responses. In this context, a range of transgenic plants over-or under-expressing N/PA metabolic genes has been developed in an effort to decipher their implication in stress signaling. The current review describes how N and PAs regulate plant growth and facilitate crop acclimatization to adverse environments in an attempt to further elucidate the N-PAs interplay against abiotic and biotic stresses, as well as the mechanisms controlling N-PA genes/enzymes and metabolites.
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95
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Gradual Exposure to Salinity Improves Tolerance to Salt Stress in Rapeseed (Brassica napus L.). WATER 2019. [DOI: 10.3390/w11081667] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Soil salinity is considered one of the most severe abiotic stresses in plants; plant acclimation to salinity could be a tool to improve salt tolerance even in a sensitive genotype. In this work we investigated the physiological mechanisms underneath the response to gradual and prolonged exposure to sodium chloride in cultivars of Brassica napus L. Fifteen days old seedlings of the cultivars Dynastie (salt tolerant) and SY Saveo (salt sensitive) were progressively exposed to increasing soil salinity conditions for 60 days. Salt exposed plants of both cultivars showed reductions of biomass, size and number of leaves. However, after 60 days the relative reduction in biomass was lower in sensitive cultivar as compared to tolerant ones. An increase of chlorophylls content was detected in both cultivars; the values of the quantum efficiency of PSII photochemistry (ΦPSII) and those of the electron transport rate (ETR) indicated that the photochemical activity was only partially reduced by NaCl treatments in both cultivars. Ascorbate peroxidase (APX) activity was higher in treated samples with respect to the controls, indicating its activation following salt exposure, and confirming its involvement in salt stress response. A gradual exposure to salt could elicit different salt stress responses, thus preserving plant vitality and conferring a certain degree of tolerance, even though the genotype was salt sensitive at the seed germination stage. An improvement of salt tolerance in B. napus could be obtained by acclimation to saline conditions.
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96
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Luo X, Liu J. Transcriptome Analysis of Acid-Responsive Genes and Pathways Involved in Polyamine Regulation in Iron Walnut. Genes (Basel) 2019; 10:E605. [PMID: 31405132 PMCID: PMC6723594 DOI: 10.3390/genes10080605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 02/07/2023] Open
Abstract
We reported changes in the co-regulated mRNA expression in iron walnut (Juglans sigillata) in response to soil pH treatments and identified mRNAs specific to acidic soil conditions. Phenotypic and physiological analyses revealed that iron walnut growth was greater for the pH 4-5 and pH 5-6 treatments than for the pH 3-4 and pH 6-7 treatments. A total of 2768 differentially expressed genes were detected and categorized into 12 clusters by Short Time-series Expression Miner (STEM). The 994 low-expression genes in cluster III and 255 high-expression genes in cluster X were classified as acid-responsive genes on the basis of the relationships between phenotype, physiology, and STEM clustering, and the two gene clusters were analyzed by a maximum likelihood (ML) evolutionary tree with the greatest log likelihood values. No prominent sub-clusters occurred in cluster III, but three occurred in cluster X. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that acid-responsive genes were related primarily to arginine biosynthesis and the arginine/proline metabolism pathway, implying that polyamine accumulation may enhance iron walnut acid stress tolerance. Overall, our results revealed 1249 potentially acid-responsive genes in iron walnut, indicating that its response to acid stress involves different pathways and activated genes.
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Affiliation(s)
- Xiaomei Luo
- College of Forestry, Sichuan Agricultural University, Huimin Road 211 in Wenjiang District, Chengdu 611130, China.
| | - Juncheng Liu
- College of Forestry, Sichuan Agricultural University, Huimin Road 211 in Wenjiang District, Chengdu 611130, China
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97
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Sharma A, Shahzad B, Kumar V, Kohli SK, Sidhu GPS, Bali AS, Handa N, Kapoor D, Bhardwaj R, Zheng B. Phytohormones Regulate Accumulation of Osmolytes Under Abiotic Stress. Biomolecules 2019; 9:E285. [PMID: 31319576 PMCID: PMC6680914 DOI: 10.3390/biom9070285] [Citation(s) in RCA: 209] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/14/2019] [Accepted: 07/16/2019] [Indexed: 01/28/2023] Open
Abstract
Plants face a variety of abiotic stresses, which generate reactive oxygen species (ROS), and ultimately obstruct normal growth and development of plants. To prevent cellular damage caused by oxidative stress, plants accumulate certain compatible solutes known as osmolytes to safeguard the cellular machinery. The most common osmolytes that play crucial role in osmoregulation are proline, glycine-betaine, polyamines, and sugars. These compounds stabilize the osmotic differences between surroundings of cell and the cytosol. Besides, they also protect the plant cells from oxidative stress by inhibiting the production of harmful ROS like hydroxyl ions, superoxide ions, hydrogen peroxide, and other free radicals. The accumulation of osmolytes is further modulated by phytohormones like abscisic acid, brassinosteroids, cytokinins, ethylene, jasmonates, and salicylic acid. It is thus important to understand the mechanisms regulating the phytohormone-mediated accumulation of osmolytes in plants during abiotic stresses. In this review, we have discussed the underlying mechanisms of phytohormone-regulated osmolyte accumulation along with their various functions in plants under stress conditions.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
| | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Vinod Kumar
- Department of Botany, DAV University, Sarmastpur, Jalandhar 144012, Punjab, India
| | - Sukhmeen Kaur Kohli
- Plant Stress Physiology Laboratory, Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India
| | - Gagan Preet Singh Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh 160047, India
| | | | - Neha Handa
- School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India
| | - Dhriti Kapoor
- School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India
| | - Renu Bhardwaj
- Plant Stress Physiology Laboratory, Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, India
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
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98
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El Amrani A, Couée I, Berthomé R, Ramel F, Gouesbet G, Sulmon C. Involvement of polyamines in sucrose-induced tolerance to atrazine-mediated chemical stress in Arabidopsis thaliana. JOURNAL OF PLANT PHYSIOLOGY 2019; 238:1-11. [PMID: 31121522 DOI: 10.1016/j.jplph.2019.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/19/2019] [Accepted: 04/22/2019] [Indexed: 05/10/2023]
Abstract
Treatment of Arabidopsis thaliana seedlings with the PSII-inhibiting herbicide atrazine results in xenobiotic and oxidative stress, developmental arrest, induction of senescence and cell death processes. In contrast, exogenous sucrose supply confers a high level of atrazine stress tolerance, in relation with genome-wide modifications of transcript levels and regulation of genes involved in detoxification, defense and repair. However, the regulation mechanisms related to exogenous sucrose, involved in this sucrose-induced tolerance, are largely unknown. Characterization of these mechanisms was carried out through a combination of transcriptomic, metabolic, functional and mutant analysis under different conditions of atrazine exposure. Exogenous sucrose was found to differentially regulate genes involved in polyamine synthesis. ARGININE DECARBOXYLASE ADC1 and ADC2 paralogues, which encode the rate-limiting enzyme (EC 4.1.1.19) of the first step of polyamine biosynthesis, were strongly upregulated by sucrose treatment in the presence of atrazine. Such regulation occurred concomitantly with significant changes of major polyamines (putrescine, spermidine, spermine). Physiological characterization of a mutant affected in ADC activity and exogenous treatments with sucrose, putrescine, spermidine and spermine further showed that modification of polyamine synthesis and of polyamine levels could play adaptive roles in response to atrazine stress, and that putrescine and spermine had antagonistic effects, especially in the presence of sucrose. This interplay between sucrose, putrescine and spermine is discussed in relation with survival and anti-death mechanisms in the context of chemical stress exposure.
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Affiliation(s)
- Abdelhak El Amrani
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Campus de Beaulieu, Bâtiment 14A, 263 avenue du Général Leclerc, F-35000, Rennes, France
| | - Ivan Couée
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Campus de Beaulieu, Bâtiment 14A, 263 avenue du Général Leclerc, F-35000, Rennes, France
| | - Richard Berthomé
- LIPM, Université de Toulouse, INRA, CNRS, INPT, Castanet-Tolosan, France
| | - Fanny Ramel
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Campus de Beaulieu, Bâtiment 14A, 263 avenue du Général Leclerc, F-35000, Rennes, France
| | - Gwenola Gouesbet
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Campus de Beaulieu, Bâtiment 14A, 263 avenue du Général Leclerc, F-35000, Rennes, France
| | - Cécile Sulmon
- Univ Rennes, CNRS, ECOBIO [(Ecosystèmes, biodiversité, évolution)] - UMR 6553, Campus de Beaulieu, Bâtiment 14A, 263 avenue du Général Leclerc, F-35000, Rennes, France.
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99
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Yu Z, Jia D, Liu T. Polyamine Oxidases Play Various Roles in Plant Development and Abiotic Stress Tolerance. PLANTS (BASEL, SWITZERLAND) 2019; 8:E184. [PMID: 31234345 PMCID: PMC6632040 DOI: 10.3390/plants8060184] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 02/06/2023]
Abstract
Polyamines not only play roles in plant growth and development, but also adapt to environmental stresses. Polyamines can be oxidized by copper-containing diamine oxidases (CuAOs) and flavin-containing polyamine oxidases (PAOs). Two types of PAOs exist in the plant kingdom; one type catalyzes the back conversion (BC-type) pathway and the other catalyzes the terminal catabolism (TC-type) pathway. The catabolic features and biological functions of plant PAOs have been investigated in various plants in the past years. In this review, we focus on the advance of PAO studies in rice, Arabidopsis, and tomato, and other plant species.
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Affiliation(s)
- Zhen Yu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.
| | - Dongyu Jia
- Department of Biology, Georgia Southern University, Statesboro, GA 30460-8042, USA.
| | - Taibo Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.
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100
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Solé-Gil A, Hernández-García J, López-Gresa MP, Blázquez MA, Agustí J. Conservation of Thermospermine Synthase Activity in Vascular and Non-vascular Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:663. [PMID: 31244864 PMCID: PMC6579911 DOI: 10.3389/fpls.2019.00663] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 05/02/2019] [Indexed: 05/27/2023]
Abstract
In plants, the only confirmed function for thermospermine is regulating xylem cells maturation. However, genes putatively encoding thermospermine synthases have been identified in the genomes of both vascular and non-vascular plants. Here, we verify the activity of the thermospermine synthase genes and the presence of thermospermine in vascular and non-vascular land plants as well as in the aquatic plant Chlamydomonas reinhardtii. In addition, we provide information about differential content of thermospermine in diverse organs at different developmental stages in some vascular species that suggest that, although the major role of thermospermine in vascular plants is likely to be xylem development, other potential roles in development and/or responses to stress conditions could be associated to such polyamine. In summary, our results in vascular and non-vascular species indicate that the capacity to synthesize thermospermine is conserved throughout the entire plant kingdom.
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