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Wanyu Z, Dongling N, Yae Z, Lianying J, Chenglin G, Rong C, Li H. Prokaryotic expression of DFP1 and DFP2 in Dermatophagoides farinae and their responses to temperature stress. Gene 2024; 927:148661. [PMID: 38871034 DOI: 10.1016/j.gene.2024.148661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/29/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
The functions of highly expressed genes DFP1 and DFP2 in Dermatophagoides farinae remain unknown. DFP1 and DFP2 have been abundantly annotated and were up-regulated under temperature stress at 43 °C and -10 °C in our previous RNA-seq study, indicating that DFP1 and DFP2 may have temperature stress response function. Here, we amplified, cloned, and sequenced to obtain the complete coding sequences of DFP1 and DFP2 and predicted their protein characteristics using bioinformatics analysis. Then, prokaryotic expression systems were constructed and found that DFP1 was expressed in Escherichia coli Rosetta-gami 2 (DE3) but not BL21 (DE3); DFP2 was expressed in both BL21 (DE3) and Rosetta-gami 2 (DE3), with higher expression in BL21 (DE3). Finally, the growth curves of bacteria were drawn and indicated that the DFP1- and DFP2-pET32a carrying recombinant bacteria grew better than the respectiveonly pET32a carrying control bacteria after heat and cold stress. This study confirms for the first time that DFP1 and DFP2 respond to temperature stress at the protein level. The constructed prokaryotic expression systems will provide an experimental foundation for future antibody preparation for western blotting detection to confirm the temperature-stress response functions of DFP1 and DFP2.
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Affiliation(s)
- Zhang Wanyu
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
| | - Niu Dongling
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China; Clinical Laboratory Center, Xi'an People's Hospital, Xi'an Fourth Hospital, Affiliated People's Hospital of Northwest University, Xi'an 710004, China
| | - Zhao Yae
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China.
| | - Jiao Lianying
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
| | - Guan Chenglin
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
| | - Chai Rong
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
| | - Hu Li
- Department of Pathogen Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
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Shourie A, Mazahar S, Singh A. Biotechnological approaches for enhancement of heavy metal phytoremediation capacity of plants. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:789. [PMID: 39105824 DOI: 10.1007/s10661-024-12940-4] [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: 03/03/2024] [Accepted: 07/24/2024] [Indexed: 08/07/2024]
Abstract
Heavy metals are extremely hazardous for human health due to their toxic effects. They are non-biodegradable in nature, thus remain in the environment and enter and accumulate in the human body through biomagnification; hence, there is a serious need of their remediation. Phytoremediation has emerged as a green, sustainable, and effective solution for heavy metal removal and many plant species could be employed for this purpose. Plants are able to sequester substantial quantity of heavy metals, in some cases thousands of ppm, due to their robust physiology enabling high metal tolerance and anatomy supporting metal ion accumulation. Identification and modification of potential target genes involved in heavy metal accumulation have led to improved phytoremediation capacity of plants at the molecular level. The introduction of foreign genes through genetic engineering approaches has further enhanced phytoremediation capacity manifolds. This review gives an insight towards improving the phytoremediation efficiency through a better understanding of molecular mechanisms involved, expression of different proteins, genetic engineering approaches for transgenic production, and genetic modifications. It also comprehends novel omics tools such as genomics, metabolomics, proteomics, transcriptomics, and genome editing technologies for improvement of phytoremediation ability of plants.
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Affiliation(s)
- Abhilasha Shourie
- Department of Biotechnology, School of Engineering and Technology, Manav Rachna International Institute of Research and Studies, Faridabad, India
| | - Samina Mazahar
- Department of Botany, Dyal Singh College, University of Delhi, New Delhi, India.
| | - Anamika Singh
- Department of Botany, Maitreyi College, University of Delhi, New Delhi, India.
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Díaz-Pérez AL, Díaz-Pérez C, Gaona-García RY, Hernández-Santoyo A, Lázaro-Mixteco PE, Reyes-De La Cruz H, Campos-García J. Study of peripheral domains in structure-function of isocitrate lyase (ICL) from Pseudomonas aeruginosa. World J Microbiol Biotechnol 2023; 39:339. [PMID: 37821748 DOI: 10.1007/s11274-023-03768-0] [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: 05/04/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
The capacity of Pseudomonas aeruginosa to assimilate nutrients is essential for niche colonization and contributes to its pathogenicity. Isocitrate lyase (ICL), the first enzyme of the glyoxylate cycle, redirects isocitrate from the tricarboxylic acid cycle to render glyoxylate and succinate. P. aeruginosa ICL (PaICL) is regarded as a virulence factor due to its role in carbon assimilation during infection. The AceA/ICL protein family shares the catalytic domain I, triosephosphate isomerase barrel (TIM-barrel). The carboxyl terminus of domain I is essential for Escherichia coli ICL (EcICL) of subfamily 1. PaICL, which belongs to subfamily 3, has domain II inserted at the periphery of domain I, which is believed to participate in enzyme oligomerization. In addition, PaICL has the α13-loop-α14 (extended motif), which protrudes from the enzyme core, being of unknown function. This study investigates the role of domain II, the extended motif, and the carboxyl-terminus (C-ICL) and amino-terminus (N-ICL) regions in the function of the PaICL enzyme, also as their involvement in the virulence of P. aeruginosa PAO1. Deletion of domain II and the extended motif results in enzyme inactivation and structural instability of the enzyme. The His6-tag fusion at the C-ICL protein produced a less efficient enzyme than fusion at the N-ICL, but without affecting the acetate assimilation or virulence. The PaICL homotetrameric structure of the enzyme was more stable in the N-His6-ICL than in the C-His6-ICL, suggesting that the C-terminus is critical for the ICL quaternary conformation. The ICL-mutant A39 complemented with the recombinant proteins N-His6-ICL or C-His6-ICL were more virulent than the WT PAO1 strain. The findings indicate that the domain II and the extended motif are essential for the ICL structure/function, and the C-terminus is involved in its quaternary structure conformation, confirming that in P. aeruginosa, the ICL is essential for acetate assimilation and virulence.
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Affiliation(s)
- Alma Laura Díaz-Pérez
- Lab. de Biotecnología Microbiana, Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edif. U-3, Ciudad Universitaria, 58030, Morelia, Mich., Mexico
| | - César Díaz-Pérez
- Facultad de Agrobiologia, Campus Celaya-Salvatierra, Universiad de Guanajuato, Guanajuato, Gto., Mexico
| | - Roxana Yughadi Gaona-García
- Lab. de Biotecnología Microbiana, Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edif. U-3, Ciudad Universitaria, 58030, Morelia, Mich., Mexico
| | - Alejandra Hernández-Santoyo
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Pedro E Lázaro-Mixteco
- Facultad de Ingeniería Química, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich., Mexico
| | - Homero Reyes-De La Cruz
- Lab. de Biotecnología Microbiana, Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edif. U-3, Ciudad Universitaria, 58030, Morelia, Mich., Mexico
| | - Jesús Campos-García
- Lab. de Biotecnología Microbiana, Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edif. U-3, Ciudad Universitaria, 58030, Morelia, Mich., Mexico.
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Zeng Z, Chen J, Liu X, Li Y, Zhang Y, Cai H, Chen J, Rao D, Shen W. Ultrasonic treatment alleviated cadmium stress in sugarcane via improving antioxidant activity and physiological and biochemical status. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115381. [PMID: 37597288 DOI: 10.1016/j.ecoenv.2023.115381] [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: 07/01/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/21/2023]
Abstract
Cadmium (Cd) is a toxic element that endangers crop growth and affects food safety and human health. Therefore, the study of Cd mitigation technology is important. Ultrasonic treatment can improve crop growth and enhance their ability to resist various abiotic stresses. In this study, the effect of ultrasonic treatment on alleviating sugarcane Cd stress was studied in a barrel experiment using sugarcane varieties 'ROC22' and 'LC05-136' as test materials. Sugarcane buds without ultrasonic treatment and with ultrasonic treatment (20-40 kHz mixed frequency ultrasound for 2 min, dry treatment) were planted in soil with Cd contents of 0, 50, 100, 250, and 500 mg·kg-1. Compared with non-ultrasonic treatment, Ultrasonic treatment significantly increased the activities of antioxidant enzymes in sugarcane, significantly increased the content of osmoregulation substances, significantly reduced the content of superoxide anion (the highest decreases reached 11.55%) and malondialdehyde (the highest decreases reached 20.59%), and significantly increased the expression level of metallothionein (MT)-related genes, with the expression of ScMT1 increased by 8.80-37.49% and the expression of ScMT2-1-5 increased by 1.55-69.33%. In addition, ultrasonic treatment significantly reduced the Cd contents in sugarcane roots, stems, leaves, bagasse, and juice (the highest reduction in Cd content was 49.18%). In general, ultrasonic treatment regulated the metabolism of reactive oxygen species and MT-related gene expression in sugarcane, increased the Cd tolerance of sugarcane, promoted photosynthesis in sugarcane leaves, improved root morphology, enhanced sugarcane growth, and increased cane and sugar yield.
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Affiliation(s)
- Zhen Zeng
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jiaoyun Chen
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xiangli Liu
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yongjia Li
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yi Zhang
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Huabo Cai
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jianwen Chen
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Dehua Rao
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Wankuan Shen
- College of Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China; Sugarcane Research Laboratory, South China Agricultural University, Guangzhou, Guangdong 510642, China.
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Gautam N, Tiwari M, Kidwai M, Dutta P, Chakrabarty D. Functional characterization of rice metallothionein OsMT-I-Id: Insights into metal binding and heavy metal tolerance mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131815. [DOI: https:/doi.org/10.1016/j.jhazmat.2023.131815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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Shi Y, Jiang N, Wang M, Du Z, Chen J, Huang Y, Li M, Jin Y, Li J, Wan J, Jin X, Zhang L, Huang J. OsHIPP17 is involved in regulating the tolerance of rice to copper stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1183445. [PMID: 37484470 PMCID: PMC10359898 DOI: 10.3389/fpls.2023.1183445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/17/2023] [Indexed: 07/25/2023]
Abstract
Introduction Heavy metal-associated isoprenylated plant proteins (HIPPs) play vital roles in metal absorption, transport and accumulation in plants. However, so far, only several plant HIPPs have been functionally analyzed. In this study, a novel HIPP member OsHIPP17, which was involved in the tolerance to copper (Cu) was functionally characterized. Methods In this study, qRT-PCR, Yeast transgenic technology, Plant transgenic technology, ICP-MS and so on were used for research. Results OsHIPP17 protein was targeted to the nucleus. The Cu concentration reached 0.45 mg/g dry weight due to the overexpression of OsHIPP17 in yeast cells. Meanwhile, the overexpression of OsHIPP17 resulted in the compromised growth of Arabidopsis thaliana (Arabidopsis) under Cu stress. The root length of Oshipp17 mutant lines was also significantly reduced by 16.74- 24.36% under 25 mM Cu stress. The roots of Oshipp17 rice mutant showed increased Cu concentration by 7.25%-23.32%. Meanwhile, knockout of OsHIPP17 decreased the expression levels of OsATX1, OsZIP1, OsCOPT5 or OsHMA5, and increased the expression levels of OsCOPT1 or OsHMA4. Antioxidant enzyme activity was also reduced in rice due to the knockout of OsHIPP17. Moreover, the expression levels of cytokinin-related genes in plants under Cu stress were also affected by overexpression or knockout of OsHIPP17. Discussion These results implied that OsHIPP17 might play a role in plant Cu toxic response by affecting the expression of Cu transport genes or cytokinin-related genes. Simultaneously, our work may shed light on the underlying mechanism of how heavy metals affect the plant growth and provide a novel rice genetic source for phytoremediation of heavy metal-contaminated soil.
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Affiliation(s)
- Yang Shi
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Nan Jiang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Mengting Wang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Zhiye Du
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Ji Chen
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yanyan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mingyu Li
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Yufan Jin
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Jiahao Li
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Jian Wan
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaowan Jin
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Lang Zhang
- College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jin Huang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, China
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Gautam N, Tiwari M, Kidwai M, Dutta P, Chakrabarty D. Functional characterization of rice metallothionein OsMT-I-Id: Insights into metal binding and heavy metal tolerance mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131815. [PMID: 37336105 DOI: 10.1016/j.jhazmat.2023.131815] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/07/2023] [Accepted: 06/07/2023] [Indexed: 06/21/2023]
Abstract
Metallothioneins (MTs) are cysteine-rich proteins known for their strong metal-binding capabilities, making them effective in detoxifying heavy metals (HMs). This study focuses on characterizing the functional properties of OsMT-I-Id, a type-I Metallothionein found in rice. Using a HM-responsive yeast cup1Δ (DTY4), ycf1∆ (for cadmium), and acr3∆ mutants (for trivalent arsenic), we assessed the impact of OsMT-I-Id on metal accumulation and cellular resilience. Our results demonstrated that yeast cells expressing OsMT-I-Id showed increased tolerance and accumulated higher levels of copper (Cu), arsenic (As), and cadmium (Cd), compared to control cells. This can be attributed to the protein's ability to chelate and bind HMs. Site-directed mutagenesis was employed to investigate the specific contributions of cysteine residues. The study revealed that yeast cells with a mutated C-domain displayed heightened HM sensitivity, while cells with a mutated N-domain exhibited reduced sensitivity. This underscores the critical role of C-cysteine-rich domains in metal binding and tolerance of type-I rice MTs. Furthermore, the study identified the significance of the 12th cysteine position at the N-domain and the 68th and 72nd cysteine positions at the C-domain in influencing OsMT-I-Id metal-binding capacity. This research provides novel insights into the structure-function relationship and metal binding properties of type-I plant MTs.
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Affiliation(s)
- Neelam Gautam
- Biotechnology and Molecular Biology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Madhu Tiwari
- Biotechnology and Molecular Biology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Maria Kidwai
- Biotechnology and Molecular Biology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Prasanna Dutta
- Biotechnology and Molecular Biology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Debasis Chakrabarty
- Biotechnology and Molecular Biology Division, CSIR-National Botanical Research Institute, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Li Y, Rahman SU, Qiu Z, Shahzad SM, Nawaz MF, Huang J, Naveed S, Li L, Wang X, Cheng H. Toxic effects of cadmium on the physiological and biochemical attributes of plants, and phytoremediation strategies: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121433. [PMID: 36907241 DOI: 10.1016/j.envpol.2023.121433] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Anthropogenic activities pose a more significant threat to the environment than natural phenomena by contaminating the environment with heavy metals. Cadmium (Cd), a highly poisonous heavy metal, has a protracted biological half-life and threatens food safety. Plant roots absorb Cd due to its high bioavailability through apoplastic and symplastic pathways and translocate it to shoots through the xylem with the help of transporters and then to the edible parts via the phloem. The uptake and accumulation of Cd in plants pose deleterious effects on plant physiological and biochemical processes, which alter the morphology of vegetative and reproductive parts. In vegetative parts, Cd stunts root and shoot growth, photosynthetic activities, stomatal conductance, and overall plant biomass. Plants' male reproductive parts are more prone to Cd toxicity than female reproductive parts, ultimately affecting their grain/fruit production and survival. To alleviate/avoid/tolerate Cd toxicity, plants activate several defense mechanisms, including enzymatic and non-enzymatic antioxidants, Cd-tolerant gene up-regulations, and phytohormonal secretion. Additionally, plants tolerate Cd through chelating and sequestering as part of the intracellular defensive mechanism with the help of phytochelatins and metallothionein proteins, which help mitigate the harmful effects of Cd. The knowledge on the impact of Cd on plant vegetative and reproductive parts and the plants' physiological and biochemical responses can help selection of the most effective Cd-mitigating/avoiding/tolerating strategy to manage Cd toxicity in plants.
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Affiliation(s)
- Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Shafeeq Ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Zhixin Qiu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Sher Muhammad Shahzad
- Department of Soil and Environmental Sciences, College of Agriculture, University of Sargodha, Sargodha, Punjab, Pakistan
| | | | - Jianzhi Huang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Sadiq Naveed
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Lei Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; Dongguan Key Laboratory of Water Pollution Control and Ecological Safety Regulation, Dongguan, Guangdong, 523808, China
| | - Xiaojie Wang
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
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Silva JVDS, Baligar VC, Ahrnet D, de Almeida AAF. Transcriptomic, osmoregulatory and translocation changes modulates Ni toxicity in Theobroma cacao. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 196:624-633. [PMID: 36791534 DOI: 10.1016/j.plaphy.2023.01.053] [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: 08/09/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Nickel is one of the most released trace elements in the environment and in the case of bioaccumulation in foods and beverages derived from cocoa beans can cause risk to human health. It is very important to understand how plants respond to toxic metals and which are the defense strategies they adopt to mitigate their effects. In the present study we used young plants of T. cacao, submitted to increasing Ni doses (0, 100, 200, 300, 400 and 500 mg Ni kg-1 soil) and evaluated them for a period of 30 days. Doses of Ni, from 300 mg of Ni kg-1 onwards in the soil, promoted changes in photosynthetic, antioxidant, osmoregulatory, transcriptomic and translocation levels, evidenced by the increase in the activity of antioxidant enzymes, proline, glycine betaine, upregulation of the metallothionein 2B gene (Mt2b), and lipid peroxidation of the cell membranes. Foliar gas exchange was severely affected at higher doses of Ni. In addition, reduced levels of stomatal conductivity and transpiration rate were observed from 300 mg Ni kg-1 dose onwards in the soil, which consequently affected CO2 assimilation. Phytostabilization and exclusion mechanisms control the translocation of Ni from the root to the shoot and reduce harmful effects on plant metabolism. Our results highlighted the toxicity of Ni, a trace element often underestimated in T. cacao. In particular, it was noted that doses of 100 and 200 Ni kg-1 soil, although high, do not induce toxicity in T. cacao plants. But Ni toxicity is observed from 300 mg Ni kg-1 soil onwards. This study contributed to the understanding of the harmful effects of higher doses of Ni in cacao plants and the biochemical processes the plant uses to mitigate the effects of this metal.
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Affiliation(s)
- José Victor Dos Santos Silva
- Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Avda. Montañana 930, 50059, Zaragoza, Spain; State University of Santa Cruz, Department of Biological Sciences, Rodovia Jorge Amado, km 16, 45662-900, Ilhéus, BA, Brazil.
| | - Virupax C Baligar
- USDA-ARS-Beltsville Agricultural Research Center, Beltsville, MD, USA
| | - Dário Ahrnet
- State University of Santa Cruz, Department of Biological Sciences, Rodovia Jorge Amado, km 16, 45662-900, Ilhéus, BA, Brazil
| | - Alex-Alan Furtado de Almeida
- State University of Santa Cruz, Department of Biological Sciences, Rodovia Jorge Amado, km 16, 45662-900, Ilhéus, BA, Brazil
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10
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Ghorbel M, Feki K, Tounsi S, Bouali N, Besbes M, Brini F. The Putative Auto-Inhibitory Domain of Durum Wheat Catalase (TdCAT1) Positively Regulates Bacteria Cells in Response to Different Stress Conditions. Antioxidants (Basel) 2022; 11:antiox11091820. [PMID: 36139894 PMCID: PMC9495866 DOI: 10.3390/antiox11091820] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/03/2022] [Accepted: 09/09/2022] [Indexed: 01/24/2023] Open
Abstract
Catalase is a crucial enzyme in the antioxidant defense system protecting organisms from oxidative stress. Proteins of this kind play important roles in controlling plant response to biotic and abiotic stresses by catalyzing the decomposition of H2O2. The durum wheat catalase 1, TdCAT1, has been previously isolated and characterized. Here, using bio-informatic analysis, we showed that durum wheat catalase 1 TdCAT1 harbors different novel conserved domains. In addition, TdCAT1 contains various phosphorylation residues and S-Nitrosylation residues located at different positions along the protein sequence. TdCAT1 activity decreased after treatment with λ−phosphatase. On the other hand, we showed that durum wheat catalase 1 (TdCAT1) exhibits a low CAT activity in vitro, whereas a deleted form of TdCAT1 has better activity compared to the full-length protein (TdCAT460), suggesting that TdCAT1 could present a putative autoinhibitory domain in its C-terminal portion. Moreover, we showed that TdCAT1 positively regulates E. coli cells in response to salt, ionic and osmotic stresses as well as heavy metal stress in solid and liquid mediums. Such effects had not been reported and lead us to suggest that the durum wheat catalase 1 TdCAT1 protein could play a positive role in response to a wide array of abiotic stress conditions.
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Affiliation(s)
- Mouna Ghorbel
- Department of Biology, College of Sciences, University of Hail, P.O. Box 2440, Ha’il City 81451, Saudi Arabia
- Laboratory of Biotechnology and Plant Improvement, Center of Biotechnology of Sfax, P.O. Box 1177, Sfax 3018, Tunisia
| | - Kaouthar Feki
- Laboratory of Biotechnology and Plant Improvement, Center of Biotechnology of Sfax, P.O. Box 1177, Sfax 3018, Tunisia
| | - Sana Tounsi
- Laboratory of Biotechnology and Plant Improvement, Center of Biotechnology of Sfax, P.O. Box 1177, Sfax 3018, Tunisia
| | - Nouha Bouali
- Department of Biology, College of Sciences, University of Hail, P.O. Box 2440, Ha’il City 81451, Saudi Arabia
| | - Malek Besbes
- Department of Biology, College of Sciences, University of Hail, P.O. Box 2440, Ha’il City 81451, Saudi Arabia
| | - Faiçal Brini
- Laboratory of Biotechnology and Plant Improvement, Center of Biotechnology of Sfax, P.O. Box 1177, Sfax 3018, Tunisia
- Correspondence:
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11
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Pishchik V, Mirskaya G, Chizhevskaya E, Chebotar V, Chakrabarty D. Nickel stress-tolerance in plant-bacterial associations. PeerJ 2021; 9:e12230. [PMID: 34703670 PMCID: PMC8487243 DOI: 10.7717/peerj.12230] [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: 10/14/2020] [Accepted: 09/08/2021] [Indexed: 11/20/2022] Open
Abstract
Nickel (Ni) is an essential element for plant growth and is a constituent of several metalloenzymes, such as urease, Ni-Fe hydrogenase, Ni-superoxide dismutase. However, in high concentrations, Ni is toxic and hazardous to plants, humans and animals. High levels of Ni inhibit plant germination, reduce chlorophyll content, and cause osmotic imbalance and oxidative stress. Sustainable plant-bacterial native associations are formed under Ni-stress, such as Ni hyperaccumulator plants and rhizobacteria showed tolerance to high levels of Ni. Both partners (plants and bacteria) are capable to reduce the Ni toxicity and developed different mechanisms and strategies which they manifest in plant-bacterial associations. In addition to physical barriers, such as plants cell walls, thick cuticles and trichomes, which reduce the elevated levels of Ni entrance, plants are mitigating the Ni toxicity using their own antioxidant defense mechanisms including enzymes and other antioxidants. Bacteria in its turn effectively protect plants from Ni stress and can be used in phytoremediation. PGPR (plant growth promotion rhizobacteria) possess various mechanisms of biological protection of plants at both whole population and single cell levels. In this review, we highlighted the current understanding of the bacterial induced protective mechanisms in plant-bacterial associations under Ni stress.
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Affiliation(s)
- Veronika Pishchik
- All-Russia Research Institute for Agricultural Microbiology, Saint-Petersburg, Pushkin, Russian Federation
- Agrophysical Scientific Research Institute, Saint-Petersburg, Russian Federation
| | - Galina Mirskaya
- Agrophysical Scientific Research Institute, Saint-Petersburg, Russian Federation
| | - Elena Chizhevskaya
- All-Russia Research Institute for Agricultural Microbiology, Saint-Petersburg, Pushkin, Russian Federation
| | - Vladimir Chebotar
- All-Russia Research Institute for Agricultural Microbiology, Saint-Petersburg, Pushkin, Russian Federation
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DalCorso G, Fasani E, Manara A, Visioli G, Furini A. Heavy Metal Pollutions: State of the Art and Innovation in Phytoremediation. Int J Mol Sci 2019; 20:E3412. [PMID: 31336773 PMCID: PMC6679171 DOI: 10.3390/ijms20143412] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 12/12/2022] Open
Abstract
Mineral nutrition of plants greatly depends on both environmental conditions, particularly of soils, and the genetic background of the plant itself. Being sessile, plants adopted a range of strategies for sensing and responding to nutrient availability to optimize development and growth, as well as to protect their metabolisms from heavy metal toxicity. Such mechanisms, together with the soil environment, meaning the soil microorganisms and their interaction with plant roots, have been extensively studied with the goal of exploiting them to reclaim polluted lands; this approach, defined phytoremediation, will be the subject of this review. The main aspects and innovations in this field are considered, in particular with respect to the selection of efficient plant genotypes, the application of improved cultural strategies, and the symbiotic interaction with soil microorganisms, to manage heavy metal polluted soils.
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Affiliation(s)
- Giovanni DalCorso
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy.
| | - Elisa Fasani
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Anna Manara
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Giovanna Visioli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze, 11/A, 43124 Parma, Italy
| | - Antonella Furini
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy.
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13
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Liu F, Huang N, Wang L, Ling H, Sun T, Ahmad W, Muhammad K, Guo J, Xu L, Gao S, Que Y, Su Y. A Novel L-ascorbate Peroxidase 6 Gene, ScAPX6, Plays an Important Role in the Regulation of Response to Biotic and Abiotic Stresses in Sugarcane. FRONTIERS IN PLANT SCIENCE 2018; 8:2262. [PMID: 29387074 PMCID: PMC5776131 DOI: 10.3389/fpls.2017.02262] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 12/27/2017] [Indexed: 05/23/2023]
Abstract
The L-ascorbate peroxidase 6 gene (APX6) is one of the most important genes for scavenging H2O2 and plays a vital role in plant resistance to environmental stresses. In this study, a novel ScAPX6 gene (GenBank Accession No. KT907352) was obtained from a sugarcane variety (ROC22). Bioinformatics analysis showed that ScAPX6 has a cDNA length of 1,086 bp and encoded 333 amino acid residues. Subcellular localization confirmed that ScAPX6 was located in the chloroplast. Enhanced growth of Escherichia coli BL21 cells that expressed ScAPX6 showed high tolerance under copper (Cu) stress. Real-time quantitative PCR analysis revealed that ScAPX6 was constitutively expressed wherein with the highest expression levels in sugarcane pith and leaf and the lowest in the root. ScAPX6 was down-regulated by salicylic acid (SA), hydrogen peroxide (H2O2), polyethylene glycol (PEG) and sodium chloride (NaCl) stimuli. Interestingly, it was significantly up-regulated under the stresses of abscisic acid (ABA) and methyl jasmonate (MeJA) wherein with the highest inducible expression levels at 6 h at 6.0- and 70.0-times higher, respectively than that of control. Overexpression of ScAPX6 in Nicotiana benthamiana leaves enhanced the resistance to the infection of tobacco pathogens Pseudomonas solanacearum and Fusarium solani var. coeruleum. These results implied that ScAPX6 might positively respond to ABA, MeJA, and Cu, but might negatively respond to the stresses of SA, H2O2, PEG, and NaCl. Keeping in view the current investigation, ScAPX6 could be associated with the hypersensitive response (HR) or immunity of sugarcane, which will provide a baseline for the function identification of sugarcane ScAPX6.
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Affiliation(s)
- Feng Liu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ning Huang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ling Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hui Ling
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tingting Sun
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Waqar Ahmad
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Khushi Muhammad
- Department of Genetics, Hazara University, Mansehra, Pakistan
| | - Jinxin Guo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Liping Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shiwu Gao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
- Guangxi Collaborative Innovation Center of Sugarcane Industry, Guangxi University, Nanning, China
| | - Yachun Su
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, China
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Role of Phytochelatins (PCs), Metallothioneins (MTs), and Heavy Metal ATPase (HMA) Genes in Heavy Metal Tolerance. Fungal Biol 2018. [DOI: 10.1007/978-3-319-77386-5_2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Ojuederie OB, Babalola OO. Microbial and Plant-Assisted Bioremediation of Heavy Metal Polluted Environments: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121504. [PMID: 29207531 PMCID: PMC5750922 DOI: 10.3390/ijerph14121504] [Citation(s) in RCA: 303] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 11/26/2022]
Abstract
Environmental pollution from hazardous waste materials, organic pollutants and heavy metals, has adversely affected the natural ecosystem to the detriment of man. These pollutants arise from anthropogenic sources as well as natural disasters such as hurricanes and volcanic eruptions. Toxic metals could accumulate in agricultural soils and get into the food chain, thereby becoming a major threat to food security. Conventional and physical methods are expensive and not effective in areas with low metal toxicity. Bioremediation is therefore an eco-friendly and efficient method of reclaiming environments contaminated with heavy metals by making use of the inherent biological mechanisms of microorganisms and plants to eradicate hazardous contaminants. This review discusses the toxic effects of heavy metal pollution and the mechanisms used by microbes and plants for environmental remediation. It also emphasized the importance of modern biotechnological techniques and approaches in improving the ability of microbial enzymes to effectively degrade heavy metals at a faster rate, highlighting recent advances in microbial bioremediation and phytoremediation for the removal of heavy metals from the environment as well as future prospects and limitations. However, strict adherence to biosafety regulations must be followed in the use of biotechnological methods to ensure safety of the environment.
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Affiliation(s)
- Omena Bernard Ojuederie
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Mail Bag X2046, Mmabatho 2735, South Africa.
| | - Olubukola Oluranti Babalola
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Mail Bag X2046, Mmabatho 2735, South Africa.
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16
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Wang WZ, Yang BP, Feng XY, Cao ZY, Feng CL, Wang JG, Xiong GR, Shen LB, Zeng J, Zhao TT, Zhang SZ. Development and Characterization of Transgenic Sugarcane with Insect Resistance and Herbicide Tolerance. FRONTIERS IN PLANT SCIENCE 2017; 8:1535. [PMID: 29033953 PMCID: PMC5627015 DOI: 10.3389/fpls.2017.01535] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 08/22/2017] [Indexed: 05/23/2023]
Abstract
Genetically modified crops which had been commercial applied extensively majorly are the insect resistance and herbicide tolerance events. In this study, the Bt insecticidal gene Cry1Ab, the glyphosate-tolerant gene EPSPS, and the selection marker gene PMI were combined into a single transferred DNA fragment and introduced into sugarcane by Agrobacterium-mediated transformation. Thirty-three resistant plantlets were obtained after selection using a PMI/mannose selection system. Thirty of these resistant plantlets were PCR positive for the three target genes. Southern blot assay revealed that the copy number of the integrated fragment in the transformed plantlets varied from 1 to 7. ELISA analysis showed that 23 of the 33 resistant plantlets expressed Cry1Ab and EPSPS protein. Five single-copy and ELISA-positive transgenic lines were tested under laboratory and field conditions to determine their resistance to insects and herbicides, and also evaluated their agronomic characteristics and industrial traits. Results showed that larvae fed with fodder mixture containing stem tissues from single-copy transgenic lines were weak and small, moreover, pupation and eclosion were delayed significantly during voluntary feeding bioassays. None of transgenic sugarcane was destroyed by cane borer while more than 30% of wild type sugarcane was destroyed by cane borer. For herbicide resistance, the transgenic plantlets grew healthy even when treated with up to 0.5% roundup while wild type plantlets would die off when treated with 0.1% roundup. Thus demonstrate that these transgenic lines showed strong insect resistance and glyphosate tolerance under both laboratory and field conditions. But in the field most of the transgenic plants were shorter and more slender than non-transformed control plants. So they presented poor agronomic characteristics and industrial traits than non-transformed control plants. Thus, a considerable number of embryogenic calli should be infected to obtain transgenic lines with potential for commercial use.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Shu Zhen Zhang
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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17
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Gao S, Yang Y, Wang C, Guo J, Zhou D, Wu Q, Su Y, Xu L, Que Y. Transgenic Sugarcane with a cry1Ac Gene Exhibited Better Phenotypic Traits and Enhanced Resistance against Sugarcane Borer. PLoS One 2016; 11:e0153929. [PMID: 27093437 PMCID: PMC4836700 DOI: 10.1371/journal.pone.0153929] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 04/06/2016] [Indexed: 11/19/2022] Open
Abstract
We developed sugarcane plants with improved resistance to the sugarcane borer, Diatraea saccharalis (F). An expression vector pGcry1Ac0229, harboring the cry1Ac gene and the selectable marker gene, bar, was constructed. This construct was introduced into the sugarcane cultivar FN15 by particle bombardment. Transformed plantlets were identified after selection with Phosphinothricin (PPT) and Basta. Plantlets were then screened by PCR based on the presence of cry1Ac and 14 cry1Ac positive plantlets were identified. Real-time quantitative PCR (RT-qPCR) revealed that the copy number of cry1Ac gene in the transgenic lines varied from 1 to 148. ELISA analysis showed that Cry1Ac protein levels in 7 transgenic lines ranged from 0.85 μg/FWg to 70.92 μg/FWg in leaves and 0.04 μg/FWg to 7.22 μg/FWg in stems, and negatively correlated to the rate of insect damage that ranged from 36.67% to 13.33%, respectively. Agronomic traits of six transgenic sugarcane lines with medium copy numbers were similar to the non-transgenic parental line. However, phenotype was poor in lines with high or low copy numbers. Compared to the non-transgenic control plants, all transgenic lines with medium copy numbers had relatively equal or lower sucrose yield and significantly improved sugarcane borer resistance, which lowered susceptibility to damage by insects. This suggests that the transgenic sugarcane lines harboring medium copy numbers of the cry1Ac gene may have significantly higher resistance to sugarcane borer but the sugarcane yield in these lines is similar to the non-transgenic control thus making them superior to the control lines.
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Affiliation(s)
- Shiwu Gao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yingying Yang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Chunfeng Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Jinlong Guo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Dinggang Zhou
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Qibin Wu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yachun Su
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Liping Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- * E-mail: (LX); (YQ)
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- * E-mail: (LX); (YQ)
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Anjum NA, Hasanuzzaman M, Hossain MA, Thangavel P, Roychoudhury A, Gill SS, Rodrigo MAM, Adam V, Fujita M, Kizek R, Duarte AC, Pereira E, Ahmad I. Jacks of metal/metalloid chelation trade in plants-an overview. FRONTIERS IN PLANT SCIENCE 2015; 6:192. [PMID: 25883598 PMCID: PMC4382971 DOI: 10.3389/fpls.2015.00192] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 03/10/2015] [Indexed: 05/18/2023]
Abstract
Varied environmental compartments including soils are being contaminated by a myriad toxic metal(loid)s (hereafter termed as "metal/s") mainly through anthropogenic activities. These metals may contaminate food chain and bring irreparable consequences in human. Plant-based approach (phytoremediation) stands second to none among bioremediation technologies meant for sustainable cleanup of soils/sites with metal-contamination. In turn, the capacity of plants to tolerate potential consequences caused by the extracted/accumulated metals decides the effectiveness and success of phytoremediation system. Chelation is among the potential mechanisms that largely govern metal-tolerance in plant cells by maintaining low concentrations of free metals in cytoplasm. Metal-chelation can be performed by compounds of both thiol origin (such as GSH, glutathione; PCs, phytochelatins; MTs, metallothioneins) and non-thiol origin (such as histidine, nicotianamine, organic acids). This paper presents an appraisal of recent reports on both thiol and non-thiol compounds in an effort to shed light on the significance of these compounds in plant-metal tolerance, as well as to provide scientific clues for the advancement of metal-phytoextraction strategies.
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Affiliation(s)
- Naser A. Anjum
- Centre for Environmental and Marine Studies and Department of Chemistry, University of AveiroAveiro, Portugal
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural UniversityDhaka, Bangladesh
| | - Mohammad A. Hossain
- Department of Genetics and Plant Breeding, Bangladesh Agricultural UniversityMymensingh, Bangladesh
| | - Palaniswamy Thangavel
- Department of Environmental Science, School of Life Sciences, Periyar UniversitySalem, India
| | - Aryadeep Roychoudhury
- Post Graduate Department of Biotechnology, St. Xavier's College (Autonomous)Kolkata, India
| | - Sarvajeet S. Gill
- Stress Physiology and Molecular Biology Lab, Centre for Biotechnology, Maharshi Dayanand UniversityRohtak, India
| | - Miguel A. Merlos Rodrigo
- Central European Institute of Technology, Brno University of TechnologyBrno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in BrnoBrno, Czech Republic
| | - Vojtěch Adam
- Central European Institute of Technology, Brno University of TechnologyBrno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in BrnoBrno, Czech Republic
| | - Masayuki Fujita
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa UniversityMiki-cho, Japan
| | - Rene Kizek
- Central European Institute of Technology, Brno University of TechnologyBrno, Czech Republic
- Department of Chemistry and Biochemistry, Mendel University in BrnoBrno, Czech Republic
| | - Armando C. Duarte
- Centre for Environmental and Marine Studies and Department of Chemistry, University of AveiroAveiro, Portugal
| | - Eduarda Pereira
- Centre for Environmental and Marine Studies and Department of Chemistry, University of AveiroAveiro, Portugal
| | - Iqbal Ahmad
- Centre for Environmental and Marine Studies and Department of Chemistry, University of AveiroAveiro, Portugal
- Centre for Environmental and Marine Studies and Department of Biology, University of AveiroAveiro, Portugal
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Emamverdian A, Ding Y, Mokhberdoran F, Xie Y. Heavy metal stress and some mechanisms of plant defense response. ScientificWorldJournal 2015; 2015:756120. [PMID: 25688377 PMCID: PMC4321847 DOI: 10.1155/2015/756120] [Citation(s) in RCA: 345] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/02/2015] [Accepted: 01/05/2015] [Indexed: 11/18/2022] Open
Abstract
Unprecedented bioaccumulation and biomagnification of heavy metals (HMs) in the environment have become a dilemma for all living organisms including plants. HMs at toxic levels have the capability to interact with several vital cellular biomolecules such as nuclear proteins and DNA, leading to excessive augmentation of reactive oxygen species (ROS). This would inflict serious morphological, metabolic, and physiological anomalies in plants ranging from chlorosis of shoot to lipid peroxidation and protein degradation. In response, plants are equipped with a repertoire of mechanisms to counteract heavy metal (HM) toxicity. The key elements of these are chelating metals by forming phytochelatins (PCs) or metallothioneins (MTs) metal complex at the intra- and intercellular level, which is followed by the removal of HM ions from sensitive sites or vacuolar sequestration of ligand-metal complex. Nonenzymatically synthesized compounds such as proline (Pro) are able to strengthen metal-detoxification capacity of intracellular antioxidant enzymes. Another important additive component of plant defense system is symbiotic association with arbuscular mycorrhizal (AM) fungi. AM can effectively immobilize HMs and reduce their uptake by host plants via binding metal ions to hyphal cell wall and excreting several extracellular biomolecules. Additionally, AM fungi can enhance activities of antioxidant defense machinery of plants.
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Affiliation(s)
- Abolghassem Emamverdian
- Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
| | - Yulong Ding
- Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - Farzad Mokhberdoran
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Islamic Azad University, Mashhad Branch, Mashhad 9187147578, Iran
| | - Yinfeng Xie
- Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
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20
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Guo J, Gao S, Lin Q, Wang H, Que Y, Xu L. Transgenic sugarcane resistant to Sorghum mosaic virus based on coat protein gene silencing by RNA interference. BIOMED RESEARCH INTERNATIONAL 2015; 2015:861907. [PMID: 25685813 PMCID: PMC4317601 DOI: 10.1155/2015/861907] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 07/30/2014] [Accepted: 08/21/2014] [Indexed: 11/18/2022]
Abstract
As one of the critical diseases of sugarcane, sugarcane mosaic disease can lead to serious decline in stalk yield and sucrose content. It is mainly caused by Potyvirus sugarcane mosaic virus (SCMV) and/or Sorghum mosaic virus (SrMV), with additional differences in viral strains. RNA interference (RNAi) is a novel strategy for producing viral resistant plants. In this study, based on multiple sequence alignment conducted on genomic sequences of different strains and isolates of SrMV, the conserved region of coat protein (CP) genes was selected as the target gene and the interference sequence with size of 423 bp in length was obtained through PCR amplification. The RNAi vector pGII00-HACP with an expression cassette containing both hairpin interference sequence and cp4-epsps herbicide-tolerant gene was transferred to sugarcane cultivar ROC22 via Agrobacterium-mediated transformation. After herbicide screening, PCR molecular identification, and artificial inoculation challenge, anti-SrMV positive transgenic lines were successfully obtained. SrMV resistance rate of the transgenic lines with the interference sequence was 87.5% based on SrMV challenge by artificial inoculation. The genetically modified SrMV-resistant lines of cultivar ROC22 provide resistant germplasm for breeding lines and can also serve as resistant lines having the same genetic background for study of resistance mechanisms.
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Affiliation(s)
- Jinlong Guo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shiwu Gao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qinliang Lin
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hengbo Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liping Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- National Research and Development Center for Sugarcane Industry Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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21
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Xu Z, Ban Y, Li Z, Chen H, Yang R, Tang M. Arbuscular mycorrhizal fungi play a role in protecting roots of Sophora viciifolia Hance. from Pb damage associated with increased phytochelatin synthase gene expression. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:12671-12683. [PMID: 24958536 DOI: 10.1007/s11356-014-3209-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
Understanding the influence of arbuscular mycorrhizal (AM) fungi on the expressions of the dominant plant-related genes under heavy metal (HM) stress is important for developing strategies to reclaim polluted sites. In this study, we cloned full-length cDNAs of phytochelatin synthase gene (PCS1) and Actin of Sophora viciifolia Hance., a predominant plant in Qiandongshan lead and zinc mine, by rapid amplification of cDNA ends. Consequently, we studied the response of SvPCS1 to Funneliformis mosseae inoculation under lead stress (0, 50, and 200 μM Pb(NO3)2) at different durations (1, 3, and 7 days) using quantitative reverse-transcription polymerase chain-reaction (qRT-PCR) technique. The Pb concentrations and chlorophyll fluorescence parameters were also measured to assay Pb toxicity to Sophora viciifolia. We found that Pb concentrations in roots increased with increasing Pb application and the durations; the F v /F m , F v /F o , qP, and Y(II) decreased; NPQ rose with increasing Pb concentrations; mycorrhizal symbiosis alleviated the Pb toxicity to plants; and SvPCS1 was constitutively expressed in the roots. It was also found that F. mosseae inoculation could promote the expression of SvPCS1 with the concentration ≤ 200 μM at the exposure time shorter than 7 days.
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Affiliation(s)
- Zhouying Xu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, 712100, Shaanxi, China
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Su Y, Xu L, Fu Z, Yang Y, Guo J, Wang S, Que Y. ScChi, encoding an acidic class III chitinase of sugarcane, confers positive responses to biotic and abiotic stresses in sugarcane. Int J Mol Sci 2014; 15:2738-60. [PMID: 24552874 PMCID: PMC3958879 DOI: 10.3390/ijms15022738] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 01/27/2014] [Accepted: 02/10/2014] [Indexed: 12/14/2022] Open
Abstract
Chitinases (EC 3.2.2.14), expressed during the plant-pathogen interaction, are associated with plant defense against pathogens. In the present study, a positive correlation between chitinase activity and sugarcane smut resistance was found. ScChi (GenBank accession no. KF664180), a Class III chitinase gene, encoded a 31.37 kDa polypeptide, was cloned and identified. Subcellular localization revealed ScChi targeting to the nucleus, cytoplasm and the plasma membrane. Real-time quantitative PCR (RT-qPCR) results showed that ScChi was highly expressed in leaf and stem epidermal tissues. The ScChi transcript was both higher and maintained longer in the resistance cultivar during challenge with Sporisorium scitamineum. The ScChi also showed an obvious induction of transcription after treatment with SA (salicylic acid), H2O2, MeJA (methyl jasmonate), ABA (abscisic acid), NaCl, CuCl2, PEG (polyethylene glycol) and low temperature (4 °C). The expression levels of ScChi and six immunity associated marker genes were upregulated by the transient overexpression of ScChi. Besides, histochemical assay of Nicotiana benthamiana leaves overexpressing pCAMBIA 1301-ScChi exhibited deep DAB (3,3'-diaminobenzidinesolution) staining color and high conductivity, indicating the high level of H2O2 accumulation. These results suggest a close relationship between the expression of ScChi and plant immunity. In conclusion, the positive responses of ScChi to the biotic and abiotic stimuli reveal that this gene is a stress-related gene of sugarcane.
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Affiliation(s)
- Yachun Su
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Liping Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Zhiwei Fu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yuting Yang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Jinlong Guo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Shanshan Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Su Y, Guo J, Ling H, Chen S, Wang S, Xu L, Allan AC, Que Y. Isolation of a novel peroxisomal catalase gene from sugarcane, which is responsive to biotic and abiotic stresses. PLoS One 2014; 9:e84426. [PMID: 24392135 PMCID: PMC3879312 DOI: 10.1371/journal.pone.0084426] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/14/2013] [Indexed: 11/18/2022] Open
Abstract
Catalase is an iron porphyrin enzyme, which serves as an efficient scavenger of reactive oxygen species (ROS) to avoid oxidative damage. In sugarcane, the enzymatic activity of catalase in a variety (Yacheng05–179) resistant to the smut pathogen Sporisorium scitamineum was always higher than that of the susceptible variety (Liucheng03–182), suggesting that catalase activity may have a positive correlation with smut resistance in sugarcane. To understand the function of catalase at the molecular level, a cDNA sequence of ScCAT1 (GenBank Accession No. KF664183), was isolated from sugarcane infected by S. scitamineum. ScCAT1 was predicted to encode 492 amino acid residues, and its deduced amino acid sequence shared a high degree of homology with other plant catalases. Enhanced growth of ScCAT1 in recombinant Escherichia coli Rosetta cells under the stresses of CuCl2, CdCl2 and NaCl indicated its high tolerance. Q-PCR results showed that ScCAT1 was expressed at relatively high levels in the bud, whereas expression was moderate in stem epidermis and stem pith. Different kinds of stresses, including S. scitamineum challenge, plant hormones (SA, MeJA and ABA) treatments, oxidative (H2O2) stress, heavy metal (CuCl2) and hyper-osmotic (PEG and NaCl) stresses, triggered a significant induction of ScCAT1. The ScCAT1 protein appeared to localize in plasma membrane and cytoplasm. Furthermore, histochemical assays using DAB and trypan blue staining, as well as conductivity measurement, indicated that ScCAT1 may confer the sugarcane immunity. In conclusion, the positive response of ScCAT1 to biotic and abiotic stresses suggests that ScCAT1 is involved in protection of sugarcane against reactive oxidant-related environmental stimuli.
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Affiliation(s)
- Yachun Su
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Jinlong Guo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Hui Ling
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Shanshan Chen
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Shanshan Wang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Liping Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- * E-mail: (LX); (YQ)
| | - Andrew C. Allan
- The New Zealand Institute for Plant and Food Research, Sandringham, Auckland, New Zealand
| | - Youxiong Que
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
- * E-mail: (LX); (YQ)
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