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Gupta S, Kant K, Kaur N, Jindal P, Naeem M, Khan MN, Ali A. Polyamines: Rising stars against metal and metalloid toxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109030. [PMID: 39137683 DOI: 10.1016/j.plaphy.2024.109030] [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: 03/09/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
Globally, metal/metalloid(s) soil contamination is a persistent issue that affects the atmosphere, soil, water and plant health in today's industrialised world. However, an overabundance of these transition ions promotes the excessive buildup of reactive oxygen species (ROS) and ion imbalance, which harms agricultural productivity. Plants employ several strategies to overcome their negative effects, including hyperaccumulation, tolerance, exclusion, and chelation with organic molecules. Polyamines (PAs) are the organic compounds that act as chelating agents and modulate various physiological, biochemical, and molecular processes under metal/metalloid(s) stress. Their catabolic products, including H2O2 and gamma amino butyric acid (GABA), are also crucial signalling molecules in abiotic stress situations, particularly under metal/metalloid(s) stress. In this review, we explained how PAs regulate genes and enzymes, particularly under metal/metalloid(s) stress with a specific focus on arsenic (As), boron (B), cadmium (Cd), chromium (Cr), and zinc (Zn). The PAs regulate various plant stress responses by crosstalking with other plant hormones, upregulating phytochelatin, and metallothionein synthesis, modulating stomatal closure and antioxidant capacity. This review presents valuable insights into how PAs use a variety of tactics to reduce the harmful effects of metal/metalloid(s) through multifaceted strategies.
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Affiliation(s)
- Shalu Gupta
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Krishan Kant
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Navneet Kaur
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - Parnika Jindal
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India
| | - M Naeem
- Department of Botany, Aligarh Muslim University, Aligarh, 2020002, UP, India
| | - M Nasir Khan
- Renewable Energy and Environmental Technology Center, University of Tabuk, Tabuk, 71491, Saudi Arabia; Department of Science and Basic Studies, Applied College, University of Tabuk, Tabuk-71491, Saudi Arabia
| | - Akbar Ali
- Plant Physiology and Biochemistry Lab, Department of Botany, Dayalbagh Educational Institute (Deemed to be University), Agra, 282005, India.
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Yang H, Fang Y, Liang Z, Qin T, Liu JH, Liu T. Polyamines: pleiotropic molecules regulating plant development and enhancing crop yield and quality. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 39024414 DOI: 10.1111/pbi.14440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/04/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024]
Abstract
Polyamines (PAs) are pleiotropic bioorganic molecules. Cellular PA contents are determined by a balance between PA synthesis and degradation. PAs have been extensively demonstrated to play vital roles in the modulation of plant developmental processes and adaptation to various environmental stresses. In this review, the latest advances on the diverse roles of PAs in a range of developmental processes, such as morphogenesis, organogenesis, growth and development, and fruit ripening, are summarized and discussed. Besides, the crosstalk between PAs and phytohormones or other signalling molecules, including H2O2 and NO, involved in these processes is dwelled on. In addition, the attempts made to improve the yield and quality of grain and vegetable crops through altering the PA catabolism are enumerated. Finally, several other vital questions that remain unanswered are proposed and discussed. These include the mechanisms underlying the cooperative regulation of developmental processes by PAs and their interplaying partners like phytohormones, H2O2 and NO; PA transport for maintaining homeostasis; and utilization of PA anabolism/catabolism for generating high-yield and good-quality crops. This review aims to gain new insights into the pleiotropic role of PAs in the modulation of plant growth and development, which provides an alternative approach for manipulating and engineering valuable crop varieties that can be used in the future.
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Affiliation(s)
- Haishan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Yinyin Fang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Zhiman Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Tian Qin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Ji-Hong Liu
- National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Taibo Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory for the Development Biology and Environmental Adaptation of Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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D'Incà R, Mattioli R, Tomasella M, Tavazza R, Macone A, Incocciati A, Martignago D, Polticelli F, Fraudentali I, Cona A, Angelini R, Tavazza M, Nardini A, Tavladoraki P. A Solanum lycopersicum polyamine oxidase contributes to the control of plant growth, xylem differentiation, and drought stress tolerance. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:960-981. [PMID: 38761363 DOI: 10.1111/tpj.16809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/20/2024]
Abstract
Polyamines are involved in several plant physiological processes. In Arabidopsis thaliana, five FAD-dependent polyamine oxidases (AtPAO1 to AtPAO5) contribute to polyamine homeostasis. AtPAO5 catalyzes the back-conversion of thermospermine (T-Spm) to spermidine and plays a role in plant development, xylem differentiation, and abiotic stress tolerance. In the present study, to verify whether T-Spm metabolism can be exploited as a new route to improve stress tolerance in crops and to investigate the underlying mechanisms, tomato (Solanum lycopersicum) AtPAO5 homologs were identified (SlPAO2, SlPAO3, and SlPAO4) and CRISPR/Cas9-mediated loss-of-function slpao3 mutants were obtained. Morphological, molecular, and physiological analyses showed that slpao3 mutants display increased T-Spm levels and exhibit changes in growth parameters, number and size of xylem elements, and expression levels of auxin- and gibberellin-related genes compared to wild-type plants. The slpao3 mutants are also characterized by improved tolerance to drought stress, which can be attributed to a diminished xylem hydraulic conductivity that limits water loss, as well as to a reduced vulnerability to embolism. Altogether, this study evidences conservation, though with some significant variations, of the T-Spm-mediated regulatory mechanisms controlling plant growth and differentiation across different plant species and highlights the T-Spm role in improving stress tolerance while not constraining growth.
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Affiliation(s)
- Riccardo D'Incà
- Department of Science, University Roma Tre, 00146, Rome, Italy
| | | | - Martina Tomasella
- Dipartimento di Scienze della Vita, Università di Trieste, Trieste, Italy
| | - Raffaela Tavazza
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), BIOAG-BIOTEC C.R. Casaccia, Rome, Italy
| | - Alberto Macone
- Department of Biochemical Sciences 'A. Rossi Fanelli', Sapienza University of Rome, Rome, Italy
| | - Alessio Incocciati
- Department of Biochemical Sciences 'A. Rossi Fanelli', Sapienza University of Rome, Rome, Italy
| | | | - Fabio Polticelli
- Department of Science, University Roma Tre, 00146, Rome, Italy
- National Institute of Nuclear Physics, Roma Tre Section, 00146, Rome, Italy
| | | | - Alessandra Cona
- Department of Science, University Roma Tre, 00146, Rome, Italy
- Istituto Nazionale Biostrutture e Biosistemi (INBB), Rome, Italy
| | - Riccardo Angelini
- Department of Science, University Roma Tre, 00146, Rome, Italy
- Istituto Nazionale Biostrutture e Biosistemi (INBB), Rome, Italy
- NBFC, National Biodiversity Future Center, Palermo, Italy
| | - Mario Tavazza
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), BIOAG-BIOTEC C.R. Casaccia, Rome, Italy
| | - Andrea Nardini
- Dipartimento di Scienze della Vita, Università di Trieste, Trieste, Italy
| | - Paraskevi Tavladoraki
- Department of Science, University Roma Tre, 00146, Rome, Italy
- Istituto Nazionale Biostrutture e Biosistemi (INBB), Rome, Italy
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Benkő P, Kaszler N, Gémes K, Fehér A. Subfunctionalization of Parental Polyamine Oxidase (PAO) Genes in the Allopolyploid Tobacco Nicotiana tabacum (L.). Genes (Basel) 2023; 14:2025. [PMID: 38002968 PMCID: PMC10671180 DOI: 10.3390/genes14112025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Polyamines play an important role in developmental and environmental stress responses in plants. Polyamine oxidases (PAOs) are flavin-adenine-dinucleotide-dependent enzymes associated with polyamine catabolism. In this study, 14 genes were identified in the tobacco genome that code for PAO proteins being named based on their sequence homology with Arabidopsis PAOs (AtPAO1-5): NtPAO1A-B; NtPAO2A-C, NtPAO4A-D, and NtPAO5A-E. Sequence analysis confirmed that the PAO gene family of the allopolyploid hybrid Nicotiana tabacum is not an exact combination of the PAO genes of the maternal Nicotiana sylvestris and paternal Nicotiana tomentosiformis ones. The loss of the N. sylvestris homeolog of NtPAO5E and the gain of an extra NtPAO2 copy, likely of Nicotiana othophora origin, was revealed. The latter adds to the few pieces of evidence suggesting that the paternal parent of N. tabacum was an introgressed hybrid of N. tomentosiformis and N. othophora. Gene expression analysis indicated that all 14 PAO genes kept their expression following the formation of the hybrid species. The homeologous gene pairs showed similar or opposite regulation depending on the investigated organ, applied stress, or hormone treatment. The data indicate that the expression pattern of the homeologous genes is diversifying in a process of subfunctionalization.
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Affiliation(s)
- Péter Benkő
- Institute of Plant Biology, HUN-REN Biological Research Centre, 62. Temesvári Krt., H-6726 Szeged, Hungary; (P.B.) (N.K.); (K.G.)
- Doctoral School of Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
- Department of Plant Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
| | - Nikolett Kaszler
- Institute of Plant Biology, HUN-REN Biological Research Centre, 62. Temesvári Krt., H-6726 Szeged, Hungary; (P.B.) (N.K.); (K.G.)
- Doctoral School of Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
- Department of Plant Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
| | - Katalin Gémes
- Institute of Plant Biology, HUN-REN Biological Research Centre, 62. Temesvári Krt., H-6726 Szeged, Hungary; (P.B.) (N.K.); (K.G.)
- Department of Plant Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
| | - Attila Fehér
- Institute of Plant Biology, HUN-REN Biological Research Centre, 62. Temesvári Krt., H-6726 Szeged, Hungary; (P.B.) (N.K.); (K.G.)
- Department of Plant Biology, University of Szeged, 52. Közép Fasor, H-6726 Szeged, Hungary
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Samanta I, Roy PC, Das E, Mishra S, Chowdhary G. Plant Peroxisomal Polyamine Oxidase: A Ubiquitous Enzyme Involved in Abiotic Stress Tolerance. PLANTS (BASEL, SWITZERLAND) 2023; 12:652. [PMID: 36771734 PMCID: PMC9919379 DOI: 10.3390/plants12030652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Polyamines (PAs) are positively charged amines that are present in all organisms. In addition to their functions specific to growth and development, they are involved in responding to various biotic and abiotic stress tolerance functions. The appropriate concentration of PA in the cell is maintained by a delicate balance between the catabolism and anabolism of PAs, which is primarily driven by two enzymes, namely diamine oxidase and polyamine oxidase (PAO). PAOs have been found to be localized in multiple subcellular locations, including peroxisomes. This paper presents a holistic account of peroxisomal PAOs. PAOs are flavin adenine dinucleotide-dependent enzymes with varying degrees of substrate specificity. They are expressed differentially upon various abiotic stress conditions, namely heat, cold, salinity, and dehydration. It has also been observed that in a particular species, the various PAO isoforms are expressed differentially with a spatial and temporal distinction. PAOs are targeted to peroxisome via a peroxisomal targeting signal (PTS) type 1. We conducted an extensive bioinformatics analysis of PTS1s present in various peroxisomal PAOs and present a consensus peroxisome targeting signal present in PAOs. Furthermore, we also propose an evolutionary perspective of peroxisomal PAOs. PAOs localized in plant peroxisomes are of potential importance in abiotic stress tolerance since peroxisomes are one of the nodal centers of reactive oxygen species (ROS) homeostasis and an increase in ROS is a major indicator of the plant being in stress conditions; hence, in the future, PAO enzymes could be used as a key candidate for generating abiotic stress tolerant crops.
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Affiliation(s)
- Ishita Samanta
- Plant Molecular Biology Laboratory, School of Biotechnology, KIIT, Bhubaneswar 751024, India
| | - Pamela Chanda Roy
- Plant Molecular Biology Laboratory, School of Biotechnology, KIIT, Bhubaneswar 751024, India
| | - Eshani Das
- Plant Molecular Biology Laboratory, School of Biotechnology, KIIT, Bhubaneswar 751024, India
| | - Sasmita Mishra
- Department of Biology, Kean University, 1000 Morris Avenue, Union, NJ 07083, USA
| | - Gopal Chowdhary
- Plant Molecular Biology Laboratory, School of Biotechnology, KIIT, Bhubaneswar 751024, India
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Mei X, Hu L, Song Y, Zhou C, Mu R, Xie X, Li J, Xiang L, Weng Q, Yang Z. Heterologous Expression and Characterization of Tea ( Camellia sinensis) Polyamine Oxidase Homologs and Their Involvement in Stresses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11880-11891. [PMID: 36106904 DOI: 10.1021/acs.jafc.2c01549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Polyamine oxidase (PAO) is a key enzyme maintaining polyamine homeostasis, which affects plant physiological activities. Until now, the gene members and function of PAOs in tea (Camellia sinenesis) have not been fully identified. Here, through the expression in Escherichia coli and Nicotiana benthamiana, we identified six genes annotated as CsPAO in tea genome and transcriptome and determined their enzyme reaction modes and gene expression profiles in tea cultivar 'Yinghong 9'. We found that CsPAO1,2,3 could catalyze spermine, thermospermine, and norspermidine, and CsPAO2,3 could catalyze spermidine in the back-conversion mode, which indicated that the precursor of γ-aminobutyric acid might originate from the oxidation of putrescin but not spermidine. We further investigated the changes of CsPAO activity with temperature and pH and their stability. Kinetic parameters suggested that CsPAO2 was the major PAO modifying polyamine composition in tea, and it could be inactivated by β-hydroxyethylhydrazine and aminoguanidine. Putrescine content and CsPAO2 expression were high in tea flowers. CsPAO2 responded to wound, drought, and salt stress; CsPAO1 might be the main member responding to cold stress; anoxia induced CsPAO3. We conclude that in terms of phylogenetic tree, enzyme characteristics, and expression profile, CsPAO2 might be the dominant CsPAO in the polyamine degradation pathway.
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Affiliation(s)
- Xin Mei
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Liuhong Hu
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Yuyan Song
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Caibi Zhou
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Ren Mu
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Xintai Xie
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Jing Li
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Lan Xiang
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Qingbei Weng
- College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
| | - Ziyin Yang
- South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou 510650, China
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Yariuchi Y, Okamoto T, Noutoshi Y, Takahashi T. Responses of Polyamine-Metabolic Genes to Polyamines and Plant Stress Hormones in Arabidopsis Seedlings. Cells 2021; 10:3283. [PMID: 34943791 PMCID: PMC8699553 DOI: 10.3390/cells10123283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 12/23/2022] Open
Abstract
In plants, many of the enzymes in polyamine metabolism are encoded by multiple genes, whose expressions are differentially regulated under different physiological conditions. For comprehensive understanding of their regulation during the seedling growth stage, we examined the expression of polyamine metabolic genes in response to polyamines and stress-related plant hormones in Arabidopsis thaliana. While confirming previous findings such as induction of many of the genes by abscisic acid, induction of arginase genes and a copper amine oxidase gene, CuAOα3, by methyl jasmonate, that of an arginine decarboxylase gene, ADC2, and a spermine synthase gene, SPMS, by salicylic acid, and negative feedback regulation of thermospermine biosynthetic genes by thermospermine, our results showed that expressions of most of the genes are not responsive to exogenous polyamines. We thus examined expression of OsPAO6, which encodes an apoplastic polyamine oxidase and is strongly induced by polyamines in rice, by using the promoter-GUS fusion in transgenic Arabidopsis seedlings. The GUS activity was increased by treatment with methyl jasmonate but neither by polyamines nor by other plant hormones, suggesting a difference in the response to polyamines between Arabidopsis and rice. Our results provide a framework to study regulatory modules directing expression of each polyamine metabolic gene.
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Affiliation(s)
- Yusaku Yariuchi
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan; (Y.Y.); (T.O.)
| | - Takashi Okamoto
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan; (Y.Y.); (T.O.)
| | - Yoshiteru Noutoshi
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan;
| | - Taku Takahashi
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan; (Y.Y.); (T.O.)
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Sagor GHM, Simm S, Kim DW, Niitsu M, Kusano T, Berberich T. Effect of thermospermine on expression profiling of different gene using massive analysis of cDNA ends (MACE) and vascular maintenance in Arabidopsis. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:577-586. [PMID: 33854285 PMCID: PMC7981342 DOI: 10.1007/s12298-021-00967-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 02/27/2021] [Accepted: 03/03/2021] [Indexed: 05/24/2023]
Abstract
Arabidopsis thaliana polyamine oxidase 5 gene (AtPAO5) functions as a thermospermine (T-Spm) oxidase. Aerial growth of its knock-out mutant (Atpao5-2) was significantly repressed by low dose(s) of T-Spm but not by other polyamines. To figure out the underlying mechanism, massive analysis of 3'-cDNA ends was performed. Low dose of T-Spm treatment modulates more than two fold expression 1,398 genes in WT compared to 3186 genes in Atpao5-2. Cell wall, lipid and secondary metabolisms were dramatically affected in low dose T-Spm-treated Atpao5-2, in comparison to other pathways such as TCA cycle-, amino acid- metabolisms and photosynthesis. The cell wall pectin metabolism, cell wall proteins and degradation process were highly modulated. Intriguingly Fe-deficiency responsive genes and drought stress-induced genes were also up-regulated, suggesting the importance of thermospermi'ne flux on regulation of gene network. Histological observation showed that the vascular system of the joint part between stem and leaves was structurally dissociated, indicating its involvement in vascular maintenance. Endogenous increase in T-Spm and reduction in H2O2 contents were found in mutant grown in T-Spm containing media. The results indicate that T-Spm homeostasis by a fine tuned balance of its synthesis and catabolism is important for maintaining gene regulation network and the vascular system in plants.
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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
| | - Stefan Simm
- Department of Biosciences, Molecular Cell Biology of Plants, Goethe University, Frankfurt am Main, Germany
| | - Dong Wook Kim
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577 Japan
| | - Masaru Niitsu
- Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama 370-0290 Japan
| | - Tomonobu Kusano
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi 980-8577 Japan
| | - Thomas Berberich
- Senckenberg Biodiversity and Climate Research Center, Georg-Voigt-Str. 14-16, 60325 Frankfurt am Main, Germany
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Abstract
Polyamine oxidases (PAOs) are characterized by a broad variability in catalytic properties and subcellular localization, and impact key cellular processes in diverse organisms. In the present study, a comprehensive phylogenetic analysis was performed to understand the evolution of PAOs across the three domains of life and particularly within eukaryotes. Phylogenetic trees show that PAO-like sequences of bacteria, archaea, and eukaryotes form three distinct clades, with the exception of a few procaryotes that probably acquired a PAO gene through horizontal transfer from a eukaryotic donor. Results strongly support a common origin for archaeal PAO-like proteins and eukaryotic PAOs, as well as a shared origin between PAOs and monoamine oxidases. Within eukaryotes, four main lineages were identified that likely originated from an ancestral eukaryotic PAO before the split of the main superphyla, followed by specific gene losses in each superphylum. Plant PAOs show the highest diversity within eukaryotes and belong to three distinct clades that underwent to multiple events of gene duplication and gene loss. Peptide deletion along the evolution of plant PAOs of Clade I accounted for further diversification of function and subcellular localization. This study provides a reference for future structure-function studies and emphasizes the importance of extending comparisons among PAO subfamilies across multiple eukaryotic superphyla.
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Affiliation(s)
- Daniele Salvi
- Department of Health, Life and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy
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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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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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Wang W, Paschalidis K, Feng JC, Song J, Liu JH. Polyamine Catabolism in Plants: A Universal Process With Diverse Functions. FRONTIERS IN PLANT SCIENCE 2019; 10:561. [PMID: 31134113 PMCID: PMC6513885 DOI: 10.3389/fpls.2019.00561] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/12/2019] [Indexed: 05/18/2023]
Abstract
Polyamine (PA) catabolic processes are performed by copper-containing amine oxidases (CuAOs) and flavin-containing PA oxidases (PAOs). So far, several CuAOs and PAOs have been identified in many plant species. These enzymes exhibit different subcellular localization, substrate specificity, and functional diversity. Since PAs are involved in numerous physiological processes, considerable efforts have been made to explore the functions of plant CuAOs and PAOs during the recent decades. The stress signal transduction pathways usually lead to increase of the intracellular PA levels, which are apoplastically secreted and oxidized by CuAOs and PAOs, with parallel production of hydrogen peroxide (H2O2). Depending on the levels of the generated H2O2, high or low, respectively, either programmed cell death (PCD) occurs or H2O2 is efficiently scavenged by enzymatic/nonenzymatic antioxidant factors that help plants coping with abiotic stress, recruiting different defense mechanisms, as compared to biotic stress. Amine and PA oxidases act further as PA back-converters in peroxisomes, also generating H2O2, possibly by activating Ca2+ permeable channels. Here, the new research data are discussed on the interconnection of PA catabolism with the derived H2O2, together with their signaling roles in developmental processes, such as fruit ripening, senescence, and biotic/abiotic stress reactions, in an effort to elucidate the mechanisms involved in crop adaptation/survival to adverse environmental conditions and to pathogenic infections.
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Affiliation(s)
- Wei Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Konstantinos Paschalidis
- Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
| | - Jian-Can Feng
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Jie Song
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
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Sagor GHM, Kusano T, Berberich T. A Polyamine Oxidase from Selaginella lepidophylla (SelPAO5) can Replace AtPAO5 in Arabidopsis through Converting Thermospermine to Norspermidine instead to Spermidine. PLANTS 2019; 8:plants8040099. [PMID: 30991762 PMCID: PMC6524367 DOI: 10.3390/plants8040099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 11/16/2022]
Abstract
Of the five polyamine oxidases in Arabidopsis thaliana, AtPAO5 has a substrate preference for the tetraamine thermospermine (T-Spm) which is converted to triamine spermidine (Spd) in a back-conversion reaction in vitro. A homologue of AtPAO5 from the lycophyte Selaginella lepidophylla (SelPAO5) back-converts T-Spm to the uncommon polyamine norspermidine (NorSpd) instead of Spd. An Atpao5 loss-of-function mutant shows a strong reduced growth phenotype when growing on a T-Spm containing medium. When SelPAO5 was expressed in the Atpao5 mutant, T-Spm level decreased to almost normal values of wild type plants, and NorSpd was produced. Furthermore the reduced growth phenotype was cured by the expression of SelPAO5. Thus, a NorSpd synthesis pathway by PAO reaction and T-Spm as substrate was demonstrated in planta and the assumption that a balanced T-Spm homeostasis is needed for normal growth was strengthened.
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Affiliation(s)
- G H M Sagor
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
| | - Tomonobu Kusano
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan.
| | - Thomas Berberich
- Laboratory Center, Senckenberg Biodiversity and Climate Research Center, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany.
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