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Zhang Y, Yang L, Zhang M, Yang J, Cui J, Hu H, Xu J. CfAPX, a cytosolic ascorbate peroxidase gene from Cryptomeria fortunei, confers tolerance to abiotic stress in transgenic Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 172:167-179. [PMID: 35091196 DOI: 10.1016/j.plaphy.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/15/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Plants subjected to biotic or abiotic stresses produce a large amount of reactive oxygen species (ROS). If ROS cannot be cleared in time, they cause a series of harmful reactions in plants. Ascorbate peroxidase (APX) is a key enzyme that removes ROS from plant cells and plays a vital role in plant stress resistance. However, to date, no studies on APX homologs in Cryptomeria fortunei have been reported. In this study, we isolated complementary DNA (cDNA) encoding APXfrom C. fortunei needles, which is referred to as CfAPX, by rapid amplification of cDNA ends (RACE). The full-length CfAPX sequence was 1226 bp in length and included a 750-bp open reading frame (ORF) encoding a protein of 249 amino acids. Phylogenetic analysis showed that APXs of different plant species have been highly evolutionarily conserved. CfAPX was shown to belong to the cytoplasmic subgroup and was more closely related to GbAPX of the gymnosperm Ginkgo biloba. CfAPX showed no transcriptional activity in yeast cells but was highly expressed in cones. To better handle abiotic stresses, compared with wild-type (WT) Arabidopsis thaliana, 35S::CfAPX transgenic Arabidopsis strongly expressed CfAPX, presented increased antioxidant enzyme activities, ascorbic acid (AsA) contents, chlorophyll levels and fluorescence parameter and reduced malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents. In addition, CfAPX expression in C. fortunei was mostly upregulated under stress. In summary, CfAPX confers abiotic stress responses to plants, which provides a scientific basis for subsequent breeding for increased stress resistance in C. fortunei.
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Affiliation(s)
- Yingting Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Liwei Yang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Meng Zhang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Junjie Yang
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jiebing Cui
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Hailiang Hu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Jin Xu
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
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Wang C, Dong Y, Zhu L, Wang L, Yan L, Wang M, Zhu Q, Nan X, Li Y, Li J. Comparative transcriptome analysis of two contrasting wolfberry genotypes during fruit development and ripening and characterization of the LrMYB1 transcription factor that regulates flavonoid biosynthesis. BMC Genomics 2020; 21:295. [PMID: 32272876 PMCID: PMC7147035 DOI: 10.1186/s12864-020-6663-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 03/10/2020] [Indexed: 11/25/2022] Open
Abstract
Background Lycium barbarum and L. ruthenicum have been used as traditional medicinal plants in China and other Asian counties for centuries. However, the molecular mechanisms underlying fruit development and ripening, as well as the associated production of medicinal and nutritional components, have been little explored in these two species. Results A competitive transcriptome analysis was performed to identify the regulators and pathways involved in the fruit ripening of red wolfberry (L. barbarum) and black wolfberry (L. ruthenicum) using an Illumina sequencing platform. In total, 155,606 genes and 194,385 genes were detected in red wolfberry (RF) and black wolfberry (BF), respectively. Of them, 20,335, 24,469, and 21,056 genes were differentially expressed at three different developmental stages in BF and RF. Functional categorization of the differentially expressed genes revealed that phenylpropanoid biosynthesis, flavonoid biosynthesis, anthocyanin biosynthesis, and sugar metabolism were the most differentially regulated processes during fruit development and ripening in the RF and BF. Furthermore, we also identified 38 MYB transcription factor-encoding genes that were differentially expressed during black wolfberry fruit development. Overexpression of LrMYB1 resulted in the activation of structural genes for flavonoid biosynthesis and led to an increase in flavonoid content, suggesting that the candidate genes identified in this RNA-seq analysis are credible and might offer important utility. Conclusion This study provides novel insights into the molecular mechanism of Lycium fruit development and ripening and will be of value to novel gene discovery and functional genomic studies.
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Affiliation(s)
- Cuiping Wang
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China. .,Agricultural Biotechnology Research Center, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, China.
| | - Yan Dong
- National Wheat Improvement Center, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lizhen Zhu
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Libin Wang
- Biochip Research Center, the General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Li Yan
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Mengze Wang
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Qiang Zhu
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Xiongxiong Nan
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Yonghua Li
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
| | - Jian Li
- State Key Laboratory of Seedling Bioengineering, Ningxia Forestry Institute, Yinchuan, 750004, China
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Huang D, Bian B, Zhang M, Wang C, Li C, Liao W. The role and proteomic analysis of ethylene in hydrogen gas-induced adventitious rooting development in cucumber ( Cucumis sativus L.) explants. PeerJ 2020; 8:e8896. [PMID: 32292654 PMCID: PMC7147439 DOI: 10.7717/peerj.8896] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/11/2020] [Indexed: 01/29/2023] Open
Abstract
Previous studies have shown that both hydrogen gas (H2) and ethylene (ETH) play positive roles in plant adventitious rooting. However, the relationship between H2and ETH during this process has not been explored and remains insufficiently understood. In this study, cucumber (Cucumis sativus L.) was used to explore the proteomic changes in ETH-H2-induced rooting. Our results show that hydrogen-rich water (HRW) and ethylene-releasing compound (ethephon) at proper concentrations promote adventitious rooting, with maximal biological responses occurring at 50% HRW or 0.5 µM ethephon. ETH inhibitors aminoethoxyvinylglycine (AVG) and AgNO3 cause partial inhibition of adventitious rooting induced by H2, suggesting that ETH might be involved in H2-induced adventitious rooting. According to two-dimensional electrophoresis (2-DE) and mass spectrometric analyses, compared with the control, 9 proteins were up-regulated while 15 proteins were down-regulated in HRW treatment; four proteins were up-regulated while 10 proteins were down-regulated in ethephon treatment; and one protein was up-regulated while nine proteins were down-regulated in HRW+AVG treatment. Six of these differentially accumulated proteins were further analyzed, including photosynthesis -related proteins (ribulose-1,5-bisphosphate carall boxylase smsubunit (Rubisco), sedoheptulose-1,7-bisphosphatase (SBPase), oxygen-evolving enhancer protein (OEE1)), amino and metabolism-related protein (threonine dehydratase (TDH)), stress response-related protein (cytosolic ascorbate peroxidase (CAPX)), and folding, modification and degradation-related protein (protein disulfide-isomerase (PDI)). Moreover, the results of real-time PCR about the mRNA levels of these genes in various treatments were consistent with the 2-DE results. Therefore, ETH may be the downstream signaling molecule during H2- induced adventitious rooting and proteins Rubisco, SBPase, OEE1, TDH, CAPX and PDI may play important roles during the process.
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Affiliation(s)
- Dengjing Huang
- College of Horticulture, Gansu Agricultural University, Lanzhou, PR China, Lanzhou, China
| | - Biting Bian
- College of Horticulture, Gansu Agricultural University, Lanzhou, PR China, Lanzhou, China
| | - Meiling Zhang
- College of Science, Gansu Agricultural University, Lanzhou, China
| | - Chunlei Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, PR China, Lanzhou, China
| | - Changxia Li
- College of Horticulture, Gansu Agricultural University, Lanzhou, PR China, Lanzhou, China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou, PR China, Lanzhou, China
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Ma Z, An T, Zhu X, Ji J, Wang G, Guan C, Jin C, Yi L. GR1-like gene expression in Lycium chinense was regulated by cadmium-induced endogenous jasmonic acids accumulation. PLANT CELL REPORTS 2017; 36:1457-1476. [PMID: 28656324 DOI: 10.1007/s00299-017-2168-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/20/2017] [Indexed: 05/28/2023]
Abstract
KEY MESSAGE The G1-like gene from the Lycium chinense was cloned and transferred into N. tabacum. Evidence showed that endogenous JA accumulation was crucial to LcGR gene expression in cadmium-stressed L. chinense. Glutathione reductase (GR) plays a vital role in glutathione-ascorbate metabolism and is a key enzyme in maintaining the redox state in plants. Jasmonic acids (JA) are important hormones regulating protective responses against bacteria and mechanic damage in plants. At present, the relationship between the endogenous JA accumulation, the glutathione (GSH) content and GR gene expression in plants under cadmium (Cd) stress has not been elucidated. This study primarily aims to explore their interconnected relations. First, we isolated the GR1-like gene from Lycium chinense (LcGR). Real-time PCR showed that gene LcGR and allene oxide cyclase (LcAOC) (a JA synthesis gene) expression in L. chinense plants was significantly enhanced by CdCl2 and reduced by CdCl2 cotreatment with 12,13-epoxy-octadecenoic acid (EOA), a JA synthesis inhibitor. Meanwhile, the JA content in plants strongly increased under Cd stress and decreased under Cd + EOA treatment, which was in accordance with expression pattern of LcAOC. The function of gene LcGR was confirmed in vitro with E. coli expression system. The subcellular localization in chloroplasts of LcGR gene was proved in Nicotiana tabacum leaves with transient transfection system of Agrobacterium tumefaciens. Furthermore, the overexpression of gene LcGR in the transgenic tabacum led to great Cd-tolerance and higher GSH accumulation. Overall, the results showed that the endogenous JA accumulation in Cd-stressed plants affects the GR expression which is crucial to the GSH accumulation and GSH-dependent tolerance to cadmium in LcGR transformants.
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Affiliation(s)
- Zhigang Ma
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Bengbu Medical College, Bengbu, 233000, People's Republic of China
| | - Ting An
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Xuerui Zhu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jing Ji
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China.
| | - Gang Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Chunfeng Guan
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Chao Jin
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Lingling Yi
- Bengbu No. 2 High School, Bengbu, 233000, People's Republic of China
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Song X, Diao J, Ji J, Wang G, Li Z, Wu J, Josine TL, Wang Y. Overexpression of lycopene ε-cyclase gene from lycium chinense confers tolerance to chilling stress in Arabidopsis thaliana. Gene 2016; 576:395-403. [DOI: 10.1016/j.gene.2015.10.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 09/29/2015] [Accepted: 10/20/2015] [Indexed: 12/27/2022]
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Shi Y, Guo J, Zhang W, Jin L, Liu P, Chen X, Li F, Wei P, Li Z, Li W, Wei C, Zheng Q, Chen Q, Zhang J, Lin F, Qu L, Snyder JH, Wang R. Cloning of the Lycopene β-cyclase Gene in Nicotiana tabacum and Its Overexpression Confers Salt and Drought Tolerance. Int J Mol Sci 2015; 16:30438-57. [PMID: 26703579 PMCID: PMC4691183 DOI: 10.3390/ijms161226243] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/11/2015] [Accepted: 12/15/2015] [Indexed: 12/24/2022] Open
Abstract
Carotenoids are important pigments in plants that play crucial roles in plant growth and in plant responses to environmental stress. Lycopene β cyclase (β-LCY) functions at the branch point of the carotenoid biosynthesis pathway, catalyzing the cyclization of lycopene. Here, a β-LCY gene from Nicotiana tabacum, designated as Ntβ-LCY1, was cloned and functionally characterized. Robust expression of Ntβ-LCY1 was found in leaves, and Ntβ-LCY1 expression was obviously induced by salt, drought, and exogenous abscisic acid treatments. Strong accumulation of carotenoids and expression of carotenoid biosynthesis genes resulted from Ntβ-LCY1 overexpression. Additionally, compared to wild-type plants, transgenic plants with overexpression showed enhanced tolerance to salt and drought stress with higher abscisic acid levels and lower levels of malondialdehyde and reactive oxygen species. Conversely, transgenic RNA interference plants had a clear albino phenotype in leaves, and some plants did not survive beyond the early developmental stages. The suppression of Ntβ-LCY1 expression led to lower expression levels of genes in the carotenoid biosynthesis pathway and to reduced accumulation of carotenoids, chlorophyll, and abscisic acid. These results indicate that Ntβ-LCY1 is not only a likely cyclization enzyme involved in carotenoid accumulation but also confers salt and drought stress tolerance in Nicotiana tabacum.
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Affiliation(s)
- Yanmei Shi
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China.
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Jinggong Guo
- Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, Henan, China.
| | - Wei Zhang
- China National Tobacco Quality Supervision & Test Centre, Zhengzhou 450001, Henan, China.
| | - Lifeng Jin
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Pingping Liu
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Xia Chen
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Feng Li
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Pan Wei
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Zefeng Li
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Wenzheng Li
- Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650031, Yunnan, China.
| | - Chunyang Wei
- Staff Training Academy of CNTC, Zhengzhou 450008, Henan, China.
| | - Qingxia Zheng
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Qiansi Chen
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Jianfeng Zhang
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Fucheng Lin
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Lingbo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China.
| | - John Hugh Snyder
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
| | - Ran Wang
- National Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, Henan, China.
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Chao J, Zhang S, Chen Y, Tian WM. Cloning, heterologous expression and characterization of ascorbate peroxidase (APX) gene in laticifer cells of rubber tree (Hevea brasiliensis Muell. Arg.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2015; 97:331-8. [PMID: 26519821 DOI: 10.1016/j.plaphy.2015.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 10/16/2015] [Accepted: 10/16/2015] [Indexed: 05/01/2023]
Abstract
Ascorbate peroxidases (APXs) are a kind of crucial enzymes for removing reactive oxygen species (ROS) in plant cell. In the present study, a full-length cDNA encoding an APX, designated HbAPX, was isolated from Hevea brasiliensis by the rapid amplification of cDNA ends (RACE) method. HbAPX was 1174-bp in length and contained a 912-bp open reading frame (ORF) encoding a putative protein of 304 amino acids. The predicted molecular mass of HbAPX was 27.6 kDa (kDa) with an isoelectric point (pI) of 6.73. The phylogenetic analysis showed that HbAPX belonged to the cytosolic subgroup and was more relative to PtAPX and MdAPX2. By using PlantCare online analysis, such cis-acting elements as W-box and MRE were detected in the promoter region of HbAPX. Overproduction of recombinant HbAPX protein either in Escherichia coli or yeast enhanced their tolerance to such abiotic stresses as Cu(2+), Zn(2+), Na(2+) and hydrogen peroxide (H2O2). Ethrel application significantly down-regulated the expression of HbAPX and inhibited the activity of HbAPX in vivo. The ethrel-caused down-regulation of HbAPX may disturb the redox homeostasis in laticifer cells of rubber tree.
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Affiliation(s)
- Jinquan Chao
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou Hainan 571737, PR China.
| | - Shixin Zhang
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou Hainan 571737, PR China.
| | - Yueyi Chen
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou Hainan 571737, PR China.
| | - Wei-Min Tian
- Ministry of Agriculture Key Laboratory of Biology and Genetic Resources of Rubber Tree/State Key Laboratory Breeding Base of Cultivation and Physiology for Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou Hainan 571737, PR China.
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