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Liu X, Zhang Z, Zhang M, Zhao X, Zhang T, Liu W, Zhang J. A ras-related nuclear protein Ran participates in the 20E signaling pathway and is essential for the growth and development of Locusta migratoria. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 178:104945. [PMID: 34446211 DOI: 10.1016/j.pestbp.2021.104945] [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: 06/07/2021] [Revised: 07/25/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
The small GTPase Ran is a member of the Ras superfamily of small GTP-binding proteins, which plays a key role in the translocation of RNA and proteins through the nuclear pore complex. In this study, the full-length cDNA sequence of LmRan gene was obtained, which consists of 648-nucleotides open reading frame (ORF) and encodes 215 amino acids. RT-qPCR results revealed that LmRan was expressed in all developmental days and tissues investigated. Injection of dsLmRan into 4th and 5th instar nymphs, resulted in a significant down-regulation of LmRan transcripts, respectively. All dsLmRan-injected nymphs died before molting. Further hematoxylin and eosin staining of the integument showed that there was no apolysis occurred after silencing LmRan. In addition, the weight of dsLmRan-injected nymphs was significantly lower than that of the control group, and the gastric caecum and midgut was severely smaller. Especiallly, the mRNA level of LmCYP302a1, LmCYP315a1 and LmCYP314a1 responsible for 20E synthesis, LmE75 and LmE74 genes involved in the 20E signaling pathway, LmGfat, LmUAP1 and LmCHT10 genes involved in chitin metabolism pathway were dramatically decreased in the dsLmRan-injected nymphs. Together, the results indicated that LmRan participate in the 20E signaling pathway, which is essential for the growth and development of locusts.
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Affiliation(s)
- Xiaojian Liu
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Zheng Zhang
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Min Zhang
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xiaoming Zhao
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Tingting Zhang
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Weimin Liu
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Jianzhen Zhang
- Research Institute of Applied Biology, Shanxi University, Taiyuan, Shanxi 030006, China.
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Bo Q, Chen L, Liu Y, Chang C, Ying X, Li F, Cheng L. Analysis of Ran related to pesticide resistance in Drosophila Kc cells. Gene 2018; 663:131-137. [DOI: 10.1016/j.gene.2018.04.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 03/30/2018] [Accepted: 04/12/2018] [Indexed: 12/31/2022]
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Leppyanen IV, Kirienko AN, Lobov AA, Dolgikh EA. Differential proteome analysis of pea roots at the early stages of symbiosis with nodule bacteria. Vavilovskii Zhurnal Genet Selektsii 2018. [DOI: 10.18699/vj18.347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
In this paper, we have analyzed changes in the proteomic spectrum of pea Pisum sativum L. roots during inoculation with rhizobial bacteria with the aim of revealing new regulators of symbiosis development. To study the changes in the proteome spectrum of pea roots, a differential twodimensional (2-D) electrophoresis was performed using fluorescent labels Cy2 and Cy5. The images obtained made it possible to identify differences between the control variant (uninoculated roots) and the root variant after inoculation with Rhizobium leguminosarum bv. viciae RCAM 1026 (24 hours after treatment). 20 proteins were revealed and identified, the synthesis of which was enhanced during the inoculation of pea roots by nodule bacteria. To identify the proteins, a mass spectrometric analysis of tryptic peptides was performed on a quadrupole-time-of-flight mass spectrometer combined with a high-performance liquid chromatograph. Among such proteins, the beta-subunit of the G protein and the disulfide isomerase/phospholipase C were first found, whose function can be related to the signal regulation of symbiosis. This indicates that G-proteins and phospholipases can play a key role in the development of early stages of symbiosis in peas. Further experiments are expected to show whether the beta-subunit of the G protein interacts with the receptors to Nod factors, and how this affects the further signaling. Other proteins that might be interesting were annexin D8 and D1, protein kinase interacting with calcinerin B, actin-binding protein profilin, GTP-binding protein Ran1. They may be involved in the regulation of reactions with calcium, the reorganization of the actin cytoskeleton and other important processes in plants. The study of the role of such regulatory proteins will later become the basis for understanding the complex system of signal regulation, which is activated in pea plants by interaction with nodule bacteria.
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Affiliation(s)
- I. V. Leppyanen
- All-Russian Scientific Research Institute of Agricultural Microbiology
| | - A. N. Kirienko
- All-Russian Scientific Research Institute of Agricultural Microbiology
| | - A. A. Lobov
- Resource Center “Development of Molecular and Cellular Technologies”, Science Park, St. Petersburg State University
| | - E. A. Dolgikh
- All-Russian Scientific Research Institute of Agricultural Microbiology
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Li S, Huang Q, Zhang B, Zhang J, Liu X, Lu M, Hu Z, Ding C, Su X. Small GTP-binding protein PdRanBP regulates vascular tissue development in poplar. BMC Genet 2016; 17:96. [PMID: 27357205 PMCID: PMC4928302 DOI: 10.1186/s12863-016-0403-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/17/2016] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Previous research has demonstrated that ectopic expression of Ran-binding protein (RanBP) in Arabidopsis results in more axillary buds and reduced apical dominance compared to WT plants. However, the function of RanBP in poplar, which has very typical secondary growth, remains unclear. Here, the Populus deltoides (Marsh.) RanBP gene (PdRanBP) was isolated and functionally characterized by ectopic expression in a hybrid poplar (P. davidiana Dode × P. bolleana Lauche). RESULTS PdRanBP was predominantly expressed in leaf buds and tissues undergoing secondary wall expansion, including immature xylem and immature phloem in the stem. Overexpression of PdRanBP in poplar increased the number of sylleptic branches and the proportion of cells in the G2 phase of the cell cycle, retarded plant growth, consistently decreased the size of the secondary xylem and secondary phloem zones, and reduced the expression levels of cell wall biosynthesis genes. The downregulation of PdRanBP facilitated secondary wall expansion and increased stem height, the sizes of the xylem and phloem zones, and the expression levels of cell wall biosynthesis genes. CONCLUSIONS These results suggest that PdRanBP influences the apical and radial growth of poplar trees and that PdRanBP may regulate cell division during cell cycle progression. Taken together, our results demonstrated that PdRanBP is a nuclear, vascular tissue development-associated protein in P. deltoides.
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Affiliation(s)
- Shaofeng Li
- Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing, 100023, People's Republic of China
| | - Qinjun Huang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, People's Republic of China
| | - Bingyu Zhang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, People's Republic of China
| | - Jianhui Zhang
- Plants for Human Health Institute, Department of Horticultural Science, North Carolina State University, 600 Laureate Way, Kannapolis, North Carolina, 28081, USA.,Biomarker Technologies Corporation, Beijing, 101300, People's Republic of China
| | - Xue Liu
- Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing, 100023, People's Republic of China
| | - Mengzhu Lu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, People's Republic of China
| | - Zanmin Hu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Changjun Ding
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, People's Republic of China
| | - Xiaohua Su
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing, 100091, People's Republic of China.
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Fang Z, Lai C, Zhang Y, Lai Z. Molecular cloning, structural and expression profiling of DlRan genes during somatic embryogenesis in Dimocarpus longan Lour. SPRINGERPLUS 2016; 5:181. [PMID: 27026877 PMCID: PMC4766155 DOI: 10.1186/s40064-016-1887-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 02/16/2016] [Indexed: 11/18/2022]
Abstract
To clone and examine expression profiles of DlRan genes during somatic embryogenesis in Dimocarpus longan Lour. Thirty cDNA sequences and two genomic sequences encoding DlRan proteins were isolated from longan embryogenic cultures. Structural analysis of DlRan genes revealed that the longan Ran gene family is more expanded than that of Arabidopsis. Expression analysis of DlRan genes during somatic embryogenesis uncovered a high abundance of DlRan genes in early embryogenic cultures and heart- and torpedo-shaped embryos. The expression of DlRan genes in embryogenic calli was affected by exogenous 2,4-dichlorophenoxyacetic acid treatment. DlRan is involved in 2,4-D induced somatic embryogenesis and development of somatic embryos in longan.
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Affiliation(s)
- Zhizhen Fang
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou, 350002 Fujian China
| | - Chengchun Lai
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou, 350002 Fujian China
| | - Yaling Zhang
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou, 350002 Fujian China
| | - Zhongxiong Lai
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Cangshan District, Fuzhou, 350002 Fujian China
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Sinha VB, Grover A, Singh S, Pande V, Ahmed Z. Overexpression of Ran gene from Lepidium latifolium L. (LlaRan) renders transgenic tobacco plants hypersensitive to cold stress. Mol Biol Rep 2014; 41:5989-96. [PMID: 24973880 DOI: 10.1007/s11033-014-3476-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 06/14/2014] [Indexed: 11/25/2022]
Abstract
Ran is a multifunctional small GTPase involved in important cellular activities like nucleocytoplasmic transport, mitotic spindle assembly, nuclear envelope formation, etc., but is also known to be differentially expressed in response to abiotic stress, particularly low temperature. We have over-expressed Lepidium latifolium (Fam. Brassicaceae) Ran gene in tobacco to study the response of the plants to cold stress (24 h; 4 °C). Transformation of the tobacco plants was verified using PCR targeting Ran gene and co-transformed selectable marker gene nptII. Segregation in Mendelian ratios was validated in five transgenic lines by germination of T1 and T2 seeds on moist filter papers containing 150 mg/l kanamycin. Higher levels of electrolyte leakage and lipid peroxidation pointed towards hypersensitivity of plants. Similarly, lesser proline accumulation compared to wild types also indicated susceptibility of plants to death under chilling conditions. Specific activity of antioxidant enzymes superoxide dismutase and glutathione reductase was also measured under stressed and control conditions. A variation was observed across the different lines, and four out of five lines showed lesser specific activity compared to wild type plants, thus indicating reduced capability of scavenging free radicals. In totality, a strong evidence on induced hypersensitivity to cold stress has been collected which may further be helpful in designing appropriate strategies for engineering crop plants for survival under cold stress conditions.
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Affiliation(s)
- Vimlendu Bhushan Sinha
- Defence Institute of Bio-Energy Research, Goraparao, P.O. Arjunpur, Haldwani, 263139, India,
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Zang A, Xu X, Neill S, Cai W. Overexpression of OsRAN2 in rice and Arabidopsis renders transgenic plants hypersensitive to salinity and osmotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2010; 61:777-89. [PMID: 20018899 PMCID: PMC2814108 DOI: 10.1093/jxb/erp341] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 10/28/2009] [Accepted: 11/03/2009] [Indexed: 05/18/2023]
Abstract
Nucleo-cytoplasmic partitioning of regulatory proteins is increasingly being recognized as a major control mechanism for the regulation of signalling in plants. Ras-related nuclear protein (Ran) GTPase is required for regulating transport of proteins and RNA across the nuclear envelope and also has roles in mitotic spindle assembly and nuclear envelope (NE) assembly. However, thus far little is known of any Ran functions in the signalling pathways in plants in response to changing environmental stimuli. The OsRAN2 gene, which has high homology (77% at the amino acid level) with its human counterpart, was isolated here. Subcellular localization results showed that OsRan2 is mainly localized in the nucleus, with some in the cytoplasm. Transcription of OsRAN2 was reduced by salt, osmotic, and exogenous abscisic acid (ABA) treatments, as determined by real-time PCR. Overexpression of OsRAN2 in rice resulted in enhanced sensitivity to salinity, osmotic stress, and ABA. Seedlings of transgenic Arabidopsis thaliana plants overexpressing OsRAN2 were overly sensitive to salinity stress and exogenous ABA treatment. Furthermore, three ABA- or stress-responsive genes, AtNCED3, AtPLC1, and AtMYB2, encoding a key enzyme in ABA synthesis, a phospholipase C homologue, and a putative transcriptional factor, respectively, were shown to have differentially induced expression under salinity and ABA treatments in transgenic and wild-type Arabidopsis plants. OsRAN2 overexpression in tobacco epidermal leaf cells disturbed the nuclear import of a maize (Zea mays L.) leaf colour transcription factor (Lc). In addition, gene-silenced rice plants generated via RNA interference (RNAi) displayed pleiotropic developmental abnormalities and were male sterile.
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Affiliation(s)
- Aiping Zang
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Xiaojie Xu
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Steven Neill
- Centre for Research in Plant Science, University of the West of England, Bristol BS16 1QY, UK
| | - Weiming Cai
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
- To whom correspondence should be addressed: E-mail:
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