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Qin S, Liu Y, Cui B, Cheng J, Liu S, Liu H. Isolation and functional diversification of dihydroflavonol 4-Reductase gene HvDFR from Hosta ventricosa indicate its role in driving anthocyanin accumulation. PLANT SIGNALING & BEHAVIOR 2022; 17:2010389. [PMID: 34951328 PMCID: PMC8967398 DOI: 10.1080/15592324.2021.2010389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 06/14/2023]
Abstract
Anthocyanins are natural colorants are synthesized in a branch of the flavonoid pathway. Dihydroflavonol-4reductase (DFR) catalyzes dihydroflavonoids into anthocyanins biosynthesis, which is a key regulatory enzyme of anthocyanin biosynthesis in plants. Hosta ventricosa is an ornamental plant with elegant flowers and rich colorful leaves. How the function of HvDFR contributes to the anthocyanins biosynthesis is still unknown. In this study, the DFR homolog was identified from H. ventricosa and sequence analysis showed that HvDFR possessed the conserved NADPH binding and catalytic domains. A phylogenetic analysis showed that HvDFR was close to the clade formed with MaDFR and HoDFR in Asparagaceae. Gene expression analysis revealed that HvDFR was constitutive expressed in all tissues and expressed highly in flower as well as was positively correlated with anthocyanin content. In addition, the subcellular location of HvDFR showed that is in the nucleus and cell membrane. Overexpression of HvDFR in transgenic tobacco lines enhanced the anthocyanins accumulation along with the key genes upregulated, such as F3H, F3'H, ANS, and UFGT. Our results indicated a functional activity of the HvDFR, which provide an insight into the regulation of anthocyanins content in H. ventricosa.
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Affiliation(s)
- Shijie Qin
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
| | - Yitong Liu
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
| | - Baiqi Cui
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
| | - Jianlin Cheng
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
| | - Shuying Liu
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
| | - Hongzhang Liu
- College of Life Sciences, Jilin Agricultural University, Changchun, P.R. China
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Feng Y, Wei R, Liu A, Fan S, Che J, Zhang Z, Tian B, Yuan Y, Shi G, Shang H. Genome-wide identification, evolution, expression, and alternative splicing profiles of peroxiredoxin genes in cotton. PeerJ 2021; 9:e10685. [PMID: 33552724 PMCID: PMC7819121 DOI: 10.7717/peerj.10685] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
Peroxiredoxin (PRX) is a ubiquitous thioredoxin-dependent peroxidase that can eliminate excessive free radicals produced by stress and protect cells from oxidative damage. PRXs are also involved in reactive oxygen species (ROS)- and redox-dependent signaling by performing redox interactions with other proteins and modify their redox status. At present, PRX family identification, evolution and regulation research has been conducted in some plants; however, systematic research about this family is lacking in cotton. In this study, a total of 44 PRXs were identified in the cotton genome. Phylogenetic and conserved active site analyses showed that the PRXs were divided into six subfamilies according to the conserved site (PxxxTxxC…S…W/F) and conserved cysteinyl residues positions. Segmental duplication and polyploid events were the main methods for PRX family expansion, and the PRXs of diploid G. arboreum were the donors of PRXs in the D subgenomes of allotetraploid G. hirsutum and G. barbadense during the evolution of the PRX family. qRT-PCR analysis confirmed that cis-acting elements play important roles in regulating the expression of PRXs. Alternative splicing events occurred in GhPRX14-D that can increased the complexity of transcripts in G. hirsutum. Subcellular localization showed that most PRX members were located in chloroplasts, the cytoplasmic membrane and the nucleus. Our results provide systematic support for a better understanding of PRXs in cotton and a starting point for further studies of the specific functions of PRXs in cotton.
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Affiliation(s)
- Yulong Feng
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Renhui Wei
- Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
| | - Aiying Liu
- Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
| | - Senmiao Fan
- Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
| | - JinCan Che
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Zhen Zhang
- Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
| | - Baoming Tian
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Youlu Yuan
- Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
| | - Gongyao Shi
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
| | - Haihong Shang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China.,Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Anyang, China
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Costa SR, Marek M, Axelsen KB, Theorin L, Pomorski TG, López-Marqués RL. Role of post-translational modifications at the β-subunit ectodomain in complex association with a promiscuous plant P4-ATPase. Biochem J 2016; 473:1605-15. [PMID: 27048590 PMCID: PMC4888458 DOI: 10.1042/bcj20160207] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/01/2016] [Accepted: 04/04/2016] [Indexed: 12/14/2022]
Abstract
P-type ATPases of subfamily IV (P4-ATPases) constitute a major group of phospholipid flippases that form heteromeric complexes with members of the Cdc50 (cell division control 50) protein family. Some P4-ATPases interact specifically with only one β-subunit isoform, whereas others are promiscuous and can interact with several isoforms. In the present study, we used a site-directed mutagenesis approach to assess the role of post-translational modifications at the plant ALIS5 β-subunit ectodomain in the functionality of the promiscuous plant P4-ATPase ALA2. We identified two N-glycosylated residues, Asn(181) and Asn(231) Whereas mutation of Asn(231) seems to have a small effect on P4-ATPase complex formation, mutation of evolutionarily conserved Asn(181) disrupts interaction between the two subunits. Of the four cysteine residues located in the ALIS5 ectodomain, mutation of Cys(86) and Cys(107) compromises complex association, but the mutant β-subunits still promote complex trafficking and activity to some extent. In contrast, disruption of a conserved disulfide bond between Cys(158) and Cys(172) has no effect on the P4-ATPase complex. Our results demonstrate that post-translational modifications in the β-subunit have different functional roles in different organisms, which may be related to the promiscuity of the P4-ATPase.
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Affiliation(s)
- Sara R Costa
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark
| | - Magdalena Marek
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark
| | - Kristian B Axelsen
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark SIB Swiss Institute of Bioinformatics, CMU, CH-1211, Geneva, Switzerland
| | - Lisa Theorin
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark
| | - Thomas G Pomorski
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark Faculty of Chemistry and Biochemistry, Department of Molecular Biochemistry, Ruhr University Bochum, Universitätstrasse 150, D-44780 Bochum, Germany
| | - Rosa L López-Marqués
- Department of Plant and Environmental Sciences, Centre for Membrane Pumps in Cells and Disease-PUMPKin, University of Copenhagen, DK-1871, Frederiksberg C, Denmark
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