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Yang N, Ren J, Dai S, Wang K, Leung M, Lu Y, An Y, Burlingame A, Xu S, Wang Z, Yu W, Li N. The Quantitative Biotinylproteomics Studies Reveal a WInd-Related Kinase 1 (Raf-Like Kinase 36) Functioning as an Early Signaling Component in Wind-Induced Thigmomorphogenesis and Gravitropism. Mol Cell Proteomics 2024; 23:100738. [PMID: 38364992 PMCID: PMC10951710 DOI: 10.1016/j.mcpro.2024.100738] [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: 08/04/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 02/18/2024] Open
Abstract
Wind is one of the most prevalent environmental forces entraining plants to develop various mechano-responses, collectively called thigmomorphogenesis. Largely unknown is how plants transduce these versatile wind force signals downstream to nuclear events and to the development of thigmomorphogenic phenotype or anemotropic response. To identify molecular components at the early steps of the wind force signaling, two mechanical signaling-related phosphoproteins, identified from our previous phosphoproteomic study of Arabidopsis touch response, mitogen-activated protein kinase kinase 1 (MKK1) and 2 (MKK2), were selected for performing in planta TurboID (ID)-based quantitative proximity-labeling (PL) proteomics. This quantitative biotinylproteomics was separately performed on MKK1-ID and MKK2-ID transgenic plants, respectively, using the genetically engineered TurboID biotin ligase expression transgenics as a universal control. This unique PTM proteomics successfully identified 11 and 71 MKK1 and MKK2 putative interactors, respectively. Biotin occupancy ratio (BOR) was found to be an alternative parameter to measure the extent of proximity and specificity between the proximal target proteins and the bait fusion protein. Bioinformatics analysis of these biotinylprotein data also found that TurboID biotin ligase favorably labels the loop region of target proteins. A WInd-Related Kinase 1 (WIRK1), previously known as rapidly accelerated fibrosarcoma (Raf)-like kinase 36 (RAF36), was found to be a putative common interactor for both MKK1 and MKK2 and preferentially interacts with MKK2. Further molecular biology studies of the Arabidopsis RAF36 kinase found that it plays a role in wind regulation of the touch-responsive TCH3 and CML38 gene expression and the phosphorylation of a touch-regulated PATL3 phosphoprotein. Measurement of leaf morphology and shoot gravitropic response of wirk1 (raf36) mutant revealed that the WIRK1 gene is involved in both wind-triggered rosette thigmomorphogenesis and gravitropism of Arabidopsis stems, suggesting that the WIRK1 (RAF36) protein probably functioning upstream of both MKK1 and MKK2 and that it may serve as the crosstalk point among multiple mechano-signal transduction pathways mediating both wind mechano-response and gravitropism.
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Affiliation(s)
- Nan Yang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Jia Ren
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Shuaijian Dai
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Kai Wang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Manhin Leung
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Yinglin Lu
- Institute of Nanfan and Seed Industry, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Yuxing An
- Institute of Nanfan and Seed Industry, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Al Burlingame
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, California, USA
| | - Shouling Xu
- Department of Plant Biology, Carnegie Institution for Science, Stanford, California, USA
| | - Zhiyong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, California, USA
| | - Weichuan Yu
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Ning Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China; Shenzhen Research Institute, The Hong Kong University of Science and Technology, Shenzhen, Guangdong, China.
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Qing D, Deng G, Pan Y, Gao L, Liang H, Zhou W, Chen W, Li J, Huang J, Gao J, Lu C, Wu H, Liu K, Dai G. ITRAQ-based quantitative proteomic analysis of japonica rice seedling during cold stress. BREEDING SCIENCE 2022; 72:150-168. [PMID: 36275934 PMCID: PMC9522529 DOI: 10.1270/jsbbs.21081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 11/11/2021] [Indexed: 06/16/2023]
Abstract
Low temperature is one of the important environmental factors that affect rice growth and yield. To better understand the japonica rice responses to cold stress, isobaric tags for a relative and absolute quantification (iTRAQ) labeling-based quantitative proteomics approach was used to detected changes in protein levels. Two-week-old seedlings of the cold tolerant rice variety Kongyu131 were treated at 8°C for 24, 48 and 72 h, then the total proteins were extracted from tissues and used for quantitative proteomics analysis. A total of 5082 proteins were detected for quantitative analysis, of which 289 proteins were significantly regulated, consisting of 169 uniquely up-regulated proteins and 125 uniquely down-regulated proteins in cold stress groups relative to the control group. Functional analysis revealed that most of the regulated proteins are involved in photosynthesis, metabolic pathway, biosynthesis of secondary metabolites and carbon metabolism. Western blot analysis showed that protein regulation was consistent with the iTRAQ data. The corresponding genes of 25 regulated proteins were used for quantitative real time PCR analysis, and the results showed that the mRNA level was not always parallel to the corresponding protein level. The importance of our study is that it provides new insights into cold stress responses in rice with respect to proteomics and provides candidate genes for cold-tolerance rice breeding.
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Affiliation(s)
- Dongjin Qing
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
- Guangxi Academy of Agricultural Sciences/Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Guofu Deng
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Yinghua Pan
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Lijun Gao
- Guangxi Academy of Agricultural Sciences/Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Haifu Liang
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Weiyong Zhou
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Weiwei Chen
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Jingcheng Li
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Juan Huang
- Guangxi Academy of Agricultural Sciences/Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Ju Gao
- Guangxi Academy of Agricultural Sciences/Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Chunju Lu
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Hao Wu
- Guangxi Academy of Agricultural Sciences/Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, China
| | - Kaiqiang Liu
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Gaoxing Dai
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
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Shrestha R, Reyes AV, Baker PR, Wang ZY, Chalkley RJ, Xu SL. 15N Metabolic Labeling Quantification Workflow in Arabidopsis Using Protein Prospector. FRONTIERS IN PLANT SCIENCE 2022; 13:832562. [PMID: 35242158 PMCID: PMC8885517 DOI: 10.3389/fpls.2022.832562] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 01/05/2022] [Indexed: 05/23/2023]
Abstract
Metabolic labeling using stable isotopes is widely used for the relative quantification of proteins in proteomic studies. In plants, metabolic labeling using 15N has great potential, but the associated complexity of data analysis has limited its usage. Here, we present the 15N stable-isotope labeled protein quantification workflow utilizing open-access web-based software Protein Prospector. Further, we discuss several important features of 15N labeling required to make reliable and precise protein quantification. These features include ratio adjustment based on labeling efficiency, median and interquartile range for protein ratios, isotope cluster pattern matching to flag incorrect monoisotopic peak assignment, and caching of quantification results for fast retrieval.
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Affiliation(s)
- Ruben Shrestha
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, United States
| | - Andres V. Reyes
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, United States
- Carnegie Mass Spectrometry Facility, Carnegie Institution for Science, Stanford, CA, United States
| | - Peter R. Baker
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, United States
| | - Zhi-Yong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, United States
| | - Robert J. Chalkley
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, United States
| | - Shou-Ling Xu
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, United States
- Carnegie Mass Spectrometry Facility, Carnegie Institution for Science, Stanford, CA, United States
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Abstract
To absolutely and relatively quantitate the alteration of a posttranslationally modified (PTM) proteome in response to a specific internal or external signal, a 15N-stable isotope labeling in Arabidopsis (SILIA) protocol has been integrated into the 4C quantitative PTM proteomics, named as SILIA-based 4C quantitative PTM proteomics (S4Quap). The isotope metabolic labeling produces both forward (F) and reciprocal (R) mixings of either 14N/15N-coded tissues or the 14N/15N-coded total cellular proteins. Plant protein is isolated using a urea-based extraction buffer (UEB). The presence of 8 M urea, 2% polyvinylpolypyrrolidone (PVPP), and 5 mM ascorbic acid allows to instantly denature protein, remove the phenolic compounds, and curb the oxidation by free radicals once plant cells are broken. The total cellular proteins are routinely processed into peptides by trypsin. The PTM peptide yield of affinity enrichment and preparation is 0.1-0.2% in general. Ion exchange chromatographic fractionation prepares the PTM peptides for LC-MS/MS analysis. The collected mass spectrograms are subjected to a target-decoy sequence analysis using various search engines. The computational programs are subsequently applied to analyze the ratios of the extracted ion chromatogram (XIC) of the 14N/15N isotope-coded PTM peptide ions and to perform the statistical evaluation of the quantitation results. The Student t-test values of ratios of quantifiable 14N/15N-coded PTM peptides are normally corrected using a Benjamini-Hochberg (BH) multiple hypothesis test to select the significantly regulated PTM peptide groups (BH-FDR < 5%). Consequently, the highly selected prospect candidate(s) of PTM proteins are confirmed and validated using biochemical, molecular, cellular, and transgenic plant analysis.
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Affiliation(s)
- Emily Oi Ying Wong
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, SAR, China.,Shenzhen Research Institute, The Hong Kong University of Science and Technology, Hong Kong, SAR, China
| | - Ning Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, SAR, China. .,Shenzhen Research Institute, The Hong Kong University of Science and Technology, Hong Kong, SAR, China.
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Moradi A, Dai S, Wong EOY, Zhu G, Yu F, Lam HM, Wang Z, Burlingame A, Lin C, Afsharifar A, Yu W, Wang T, Li N. Isotopically Dimethyl Labeling-Based Quantitative Proteomic Analysis of Phosphoproteomes of Soybean Cultivars. Biomolecules 2021; 11:1218. [PMID: 34439883 PMCID: PMC8393417 DOI: 10.3390/biom11081218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 12/29/2022] Open
Abstract
Isotopically dimethyl labeling was applied in a quantitative post-translational modification (PTM) proteomic study of phosphoproteomic changes in the drought responses of two contrasting soybean cultivars. A total of 9457 phosphopeptides were identified subsequently, corresponding to 4571 phosphoprotein groups and 3889 leading phosphoproteins, which contained nine kinase families consisting of 279 kinases. These phosphoproteins contained a total of 8087 phosphosites, 6106 of which were newly identified and constituted 54% of the current soybean phosphosite repository. These phosphosites were converted into the highly conserved kinase docking sites by bioinformatics analysis, which predicted six kinase families that matched with those newly found nine kinase families. The overly post-translationally modified proteins (OPP) occupies 2.1% of these leading phosphoproteins. Most of these OPPs are photoreceptors, mRNA-, histone-, and phospholipid-binding proteins, as well as protein kinase/phosphatases. The subgroup population distribution of phosphoproteins over the number of phosphosites of phosphoproteins follows the exponential decay law, Y = 4.13e-0.098X - 0.04. Out of 218 significantly regulated unique phosphopeptide groups, 188 phosphoproteins were regulated by the drought-tolerant cultivar under the water loss condition. These significantly regulated phosphoproteins (SRP) are mainly enriched in the biological functions of water transport and deprivation, methionine metabolic processes, photosynthesis/light reaction, and response to cadmium ion, osmotic stress, and ABA response. Seventeen and 15 SRPs are protein kinases/phosphatases and transcription factors, respectively. Bioinformatics analysis again revealed that three members of the calcium dependent protein kinase family (CAMK family), GmSRK2I, GmCIPK25, and GmAKINβ1 kinases, constitute a phosphor-relay-mediated signal transduction network, regulating ion channel activities and many nuclear events in this drought-tolerant cultivar, which presumably contributes to the development of the soybean drought tolerance under water deprivation process.
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Affiliation(s)
- Atieh Moradi
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China; (A.M.); (E.O.Y.W.); (G.Z.)
- Institute of Biotechnology, School of Agriculture, Shiraz University, Shiraz 71946-84471, Iran
| | - Shuaijian Dai
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;
| | - Emily Oi Ying Wong
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China; (A.M.); (E.O.Y.W.); (G.Z.)
| | - Guang Zhu
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China; (A.M.); (E.O.Y.W.); (G.Z.)
| | - Fengchao Yu
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;
| | - Hon-Ming Lam
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China;
| | - Zhiyong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA;
| | - Al Burlingame
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94143, USA;
| | - Chengtao Lin
- Department of Molecular, Cell & Developmental Biology, University of California, Los Angeles, CA 90095, USA;
| | - Alireza Afsharifar
- Plant Virology Research Centre, School of Agriculture, Shiraz University, Shiraz 71946-84471, Iran;
| | - Weichuan Yu
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China;
| | - Tingliang Wang
- Tsinghua-Peking Joint Centre for Life Sciences, Centre for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Ning Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China; (A.M.); (E.O.Y.W.); (G.Z.)
- The HKUST Shenzhen Research Institut, Shenzhen 518057, China
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Yang Z, Guo G, Yang N, Pun SS, Ho TKL, Ji L, Hu I, Zhang J, Burlingame AL, Li N. The change of gravity vector induces short-term phosphoproteomic alterations in Arabidopsis. J Proteomics 2020; 218:103720. [PMID: 32120044 DOI: 10.1016/j.jprot.2020.103720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/07/2020] [Accepted: 02/24/2020] [Indexed: 01/15/2023]
Abstract
Plants can sense the gravitational force. When plants perceive a change in this natural force, they tend to reorient their organs with respect to the direction of the gravity vector, i.e., the shoot stem curves up. In the present study, we performed a 4C quantitative phosphoproteomics to identify those altered protein phosphosites resulting from 150 s of reorientation of Arabidopsis plants on earth. A total of 5556 phosphopeptides were identified from the gravistimulated Arabidopsis. Quantification based on the 15N-stable isotope labeling in Arabidopsis (SILIA) and computational analysis of the extracted ion chromatogram (XIC) of phosphopeptides showed eight and five unique PTM peptide arrays (UPAs) being up- and down-regulated, respectively, by gravistimulation. Among the 13 plant reorientation-responsive protein groups, many are related to the cytoskeleton dynamic and plastid movement. Interestingly, the most gravistimulation-responsive phosphosites are three serine residues, S350, S376, and S410, of a blue light receptor Phototropin 1 (PHOT1). The immunoblots experiment confirmed that the change of gravity vector indeed affected the phosphorylation level of S410 in PHOT1. The functional role of PHOT1 in gravitropic response was further validated with gravicurvature measurement in the darkness of both the loss-of-function double mutant phot1phot2 and its complementary transgenic plant PHOT1/phot1phot2. SIGNIFICANCE: The organs of sessile organisms, plants, are able to move in response to environmental stimuli, such as gravity vector, touch, light, water, or nutrients, which is termed tropism. For instance, the bending of plant shoots to the light source is called phototropism. Since all plants growing on earth are continuously exposed to the gravitational field, plants receive the mechanical signal elicited by the gravity vector change and convert it into plant morphogenesis, growth, and development. Past studies have resulted in various hypotheses for gravisensing, but our knowledge about how the signal of gravity force is transduced in plant cells is still minimal. In the present study, we performed a SILIA-based 4C quantitative phosphoproteomics on 150-s gravistimulated Arabidopsis seedlings to explore the phosphoproteins involved in the gravitropic response. Our data demonstrated that such a short-term reorientation of Arabidopsis caused changes in phosphorylation of cytoskeleton structural proteins like Chloroplast Unusual Positioning1 (CHUP1), Patellin3 (PATL3), and Plastid Movement Impaired2 (PMI2), as well as the blue light receptor Phototropin1 (PHOT1). These results suggested that protein phosphorylation plays a crucial role in gravisignaling, and two primary tropic responses of plants, gravitropism and phototropism, may share some common components and signaling pathways. We expect that the phosphoproteins detected from this study will facilitate the subsequent molecular and cellular studies on the mechanism underlying the signal transduction in plant gravitropic response.
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Affiliation(s)
- Zhu Yang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region; HKUST Shenzhen Research Institute, Shenzhen, Guangdong 518057, China; State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Guangyu Guo
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Nan Yang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Sunny Sing Pun
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Timothy Ka Leung Ho
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Ling Ji
- Department of Laboratory Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Inch Hu
- Department of ISOM and Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region.; School of Life Sciences, State Key Laboratory of Agrobiotechnology, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Alma L Burlingame
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA, USA
| | - Ning Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region; HKUST Shenzhen Research Institute, Shenzhen, Guangdong 518057, China.
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Wang L, Zou Y, Kaw HY, Wang G, Sun H, Cai L, Li C, Meng LY, Li D. Recent developments and emerging trends of mass spectrometric methods in plant hormone analysis: a review. PLANT METHODS 2020; 16:54. [PMID: 32322293 PMCID: PMC7161177 DOI: 10.1186/s13007-020-00595-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 04/04/2020] [Indexed: 05/18/2023]
Abstract
Plant hormones are naturally occurring small molecule compounds which are present at trace amounts in plant. They play a pivotal role in the regulation of plant growth. The biological activity of plant hormones depends on their concentrations in the plant, thus, accurate determination of plant hormone is paramount. However, the complex plant matrix, wide polarity range and low concentration of plant hormones are the main hindrances to effective analyses of plant hormone even when state-of-the-art analytical techniques are employed. These factors substantially influence the accuracy of analytical results. So far, significant progress has been realized in the analysis of plant hormones, particularly in sample pretreatment techniques and mass spectrometric methods. This review describes the classic extraction and modern microextraction techniques used to analyze plant hormone. Advancements in solid phase microextraction (SPME) methods have been driven by the ever-increasing requirement for dynamic and in vivo identification of the spatial distribution of plant hormones in real-life plant samples, which would contribute greatly to the burgeoning field of plant hormone investigation. In this review, we describe advances in various aspects of mass spectrometry methods. Many fragmentation patterns are analyzed to provide the theoretical basis for the establishment of a mass spectral database for the analysis of plant hormones. We hope to provide a technical guide for further discovery of new plant hormones. More than 140 research studies on plant hormone published in the past decade are reviewed, with a particular emphasis on the recent advances in mass spectrometry and sample pretreatment techniques in the analysis of plant hormone. The potential progress for further research in plant hormones analysis is also highlighted.
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Affiliation(s)
- Liyuan Wang
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Yilin Zou
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Han Yeong Kaw
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Gang Wang
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Huaze Sun
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Long Cai
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
| | - Chengyu Li
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China
| | - Long-Yue Meng
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
- Department of Environmental Science, Yanbian University, Yanji, 133002 China
| | - Donghao Li
- Department of Chemistry, MOE Key Laboratory of Biological Resources of the Changbai Mountain and Functional Molecules, Yanbian University, Park Road 977, Yanji, 133002 China
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Quantitative and functional posttranslational modification proteomics reveals that TREPH1 plays a role in plant touch-delayed bolting. Proc Natl Acad Sci U S A 2018; 115:E10265-E10274. [PMID: 30291188 DOI: 10.1073/pnas.1814006115] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Environmental mechanical forces, such as wind and touch, trigger gene-expression regulation and developmental changes, called "thigmomorphogenesis," in plants, demonstrating the ability of plants to perceive such stimuli. In Arabidopsis, a major thigmomorphogenetic response is delayed bolting, i.e., emergence of the flowering stem. The signaling components responsible for mechanotransduction of the touch response are largely unknown. Here, we performed a high-throughput SILIA (stable isotope labeling in Arabidopsis)-based quantitative phosphoproteomics analysis to profile changes in protein phosphorylation resulting from 40 seconds of force stimulation in Arabidopsis thaliana Of the 24 touch-responsive phosphopeptides identified, many were derived from kinases, phosphatases, cytoskeleton proteins, membrane proteins, and ion transporters. In addition, the previously uncharacterized protein TOUCH-REGULATED PHOSPHOPROTEIN1 (TREPH1) became rapidly phosphorylated in touch-stimulated plants, as confirmed by immunoblots. TREPH1 fractionates as a soluble protein and is shown to be required for the touch-induced delay of bolting and gene-expression changes. Furthermore, a nonphosphorylatable site-specific isoform of TREPH1 (S625A) failed to restore touch-induced flowering delay of treph1-1, indicating the necessity of S625 for TREPH1 function and providing evidence consistent with the possible functional relevance of the touch-regulated TREPH1 phosphorylation. Taken together, these findings identify a phosphoprotein player in Arabidopsis thigmomorphogenesis regulation and provide evidence that TREPH1 and its touch-induced phosphorylation may play a role in touch-induced bolting delay, a major component of thigmomorphogenesis.
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Liu S, Yu F, Hu Q, Wang T, Yu L, Du S, Yu W, Li N. Development of in Planta Chemical Cross-Linking-Based Quantitative Interactomics in Arabidopsis. J Proteome Res 2018; 17:3195-3213. [DOI: 10.1021/acs.jproteome.8b00320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Shichang Liu
- Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Fengchao Yu
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Qin Hu
- Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Tingliang Wang
- Tsinghua-Peking Joint Center for Life Sciences, Center for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lujia Yu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Shengwang Du
- Department of Physics, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Weichuan Yu
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Ning Li
- Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
- The Hong Kong University of Science and Technology, Shenzhen Research Institute, Shenzhen Guangdong 518057, China
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Liu S, Yu F, Yang Z, Wang T, Xiong H, Chang C, Yu W, Li N. Establishment of Dimethyl Labeling-based Quantitative Acetylproteomics in Arabidopsis. Mol Cell Proteomics 2018; 17:1010-1027. [PMID: 29440448 DOI: 10.1074/mcp.ra117.000530] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/18/2018] [Indexed: 12/19/2022] Open
Abstract
Protein acetylation, one of many types of post-translational modifications (PTMs), is involved in a variety of biological and cellular processes. In the present study, we applied both CsCl density gradient (CDG) centrifugation-based protein fractionation and a dimethyl-labeling-based 4C quantitative PTM proteomics workflow in the study of dynamic acetylproteomic changes in Arabidopsis. This workflow integrates the dimethyl chemical labeling with chromatography-based acetylpeptide separation and enrichment followed by mass spectrometry (MS) analysis, the extracted ion chromatogram (XIC) quantitation-based computational analysis of mass spectrometry data to measure dynamic changes of acetylpeptide level using an in-house software program, named Stable isotope-based Quantitation-Dimethyl labeling (SQUA-D), and finally the confirmation of ethylene hormone-regulated acetylation using immunoblot analysis. Eventually, using this proteomic approach, 7456 unambiguous acetylation sites were found from 2638 different acetylproteins, and 5250 acetylation sites, including 5233 sites on lysine side chain and 17 sites on protein N termini, were identified repetitively. Out of these repetitively discovered acetylation sites, 4228 sites on lysine side chain (i.e. 80.5%) are novel. These acetylproteins are exemplified by the histone superfamily, ribosomal and heat shock proteins, and proteins related to stress/stimulus responses and energy metabolism. The novel acetylproteins enriched by the CDG centrifugation fractionation contain many cellular trafficking proteins, membrane-bound receptors, and receptor-like kinases, which are mostly involved in brassinosteroid, light, gravity, and development signaling. In addition, we identified 12 highly conserved acetylation site motifs within histones, P-glycoproteins, actin depolymerizing factors, ATPases, transcription factors, and receptor-like kinases. Using SQUA-D software, we have quantified 33 ethylene hormone-enhanced and 31 hormone-suppressed acetylpeptide groups or called unique PTM peptide arrays (UPAs) that share the identical unique PTM site pattern (UPSP). This CDG centrifugation protein fractionation in combination with dimethyl labeling-based quantitative PTM proteomics, and SQUA-D may be applied in the quantitation of any PTM proteins in any model eukaryotes and agricultural crops as well as tissue samples of animals and human beings.
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Affiliation(s)
- Shichang Liu
- From the ‡Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Fengchao Yu
- §Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China.,¶Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Zhu Yang
- From the ‡Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China.,‖The Hong Kong University of Science and Technology, Shenzhen Research Institute, Shenzhen, Guangdong, 518057, China
| | - Tingliang Wang
- **Tsinghua-Peking Joint Center for Life Sciences, Center for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing 100084, China
| | - Hairong Xiong
- ‡‡College of Life Science, South-central University for Nationalities, Wuhan, 430074, China
| | - Caren Chang
- §§Department of Cell Biology and Molecular Genetics, University of Maryland, Maryland 20742-5815
| | - Weichuan Yu
- §Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China; .,¶Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Ning Li
- From the ‡Division of Life Science, Energy Institute, Institute for the Environment, The Hong Kong University of Science and Technology, Hong Kong SAR, China; .,‖The Hong Kong University of Science and Technology, Shenzhen Research Institute, Shenzhen, Guangdong, 518057, China
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11
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Vu LD, Verstraeten I, Stes E, Van Bel M, Coppens F, Gevaert K, De Smet I. Proteome Profiling of Wheat Shoots from Different Cultivars. FRONTIERS IN PLANT SCIENCE 2017; 8:332. [PMID: 28348574 PMCID: PMC5346552 DOI: 10.3389/fpls.2017.00332] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 02/24/2017] [Indexed: 05/20/2023]
Abstract
Wheat is a cereal grain and one of the world's major food crops. Recent advances in wheat genome sequencing are by now facilitating its genomic and proteomic analyses. However, little is known about possible differences in total protein levels of hexaploid versus tetraploid wheat cultivars, and also knowledge of phosphorylated wheat proteins is still limited. Here, we performed a detailed analysis of the proteome of seedling leaves from two hexaploid wheat cultivars (Triticum aestivum L. Pavon 76 and USU-Apogee) and one tetraploid wheat (T. turgidum ssp. durum cv. Senatore Cappelli). Our shotgun proteomics data revealed that, whereas we observed some significant differences, overall a high similarity between hexaploid and tetraploid varieties with respect to protein abundance was observed. In addition, already at the seedling stage, a small set of proteins was differential between the small (USU-Apogee) and larger hexaploid wheat cultivars (Pavon 76), which could potentially act as growth predictors. Finally, the phosphosites identified in this study can be retrieved from the in-house developed plant PTM-Viewer (bioinformatics.psb.ugent.be/webtools/ptm_viewer/), making this the first searchable repository for phosphorylated wheat proteins. This paves the way for further in depth, quantitative (phospho)proteome-wide differential analyses upon a specific trigger or environmental change.
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Affiliation(s)
- Lam Dai Vu
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
- Medical Biotechnology Center, VIBGhent, Belgium
- Department of Biochemistry, Ghent UniversityGhent, Belgium
| | - Inge Verstraeten
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
| | - Elisabeth Stes
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
- Medical Biotechnology Center, VIBGhent, Belgium
- Department of Biochemistry, Ghent UniversityGhent, Belgium
| | - Michiel Van Bel
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
| | - Frederik Coppens
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
| | - Kris Gevaert
- Medical Biotechnology Center, VIBGhent, Belgium
- Department of Biochemistry, Ghent UniversityGhent, Belgium
| | - Ive De Smet
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Center for Plant Systems Biology, VIBGhent, Belgium
- *Correspondence: Ive De Smet,
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12
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Zhu X, Yu F, Yang Z, Liu S, Dai C, Lu X, Liu C, Yu W, Li N. In plantachemical cross-linking and mass spectrometry analysis of protein structure and interaction in Arabidopsis. Proteomics 2016; 16:1915-27. [DOI: 10.1002/pmic.201500310] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 04/18/2016] [Accepted: 05/17/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Xinliang Zhu
- Division of Life Science; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
- Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province P. R. China
| | - Fengchao Yu
- Division of Biomedical Engineering; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
| | - Zhu Yang
- Division of Life Science; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
| | - Shichang Liu
- Division of Life Science; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
| | - Chen Dai
- Proteomics Center; Nanjing Agriculture University; Nanjing P. R. China
| | - Xiaoyun Lu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an Shaanxi Province P. R. China
| | - Chenyu Liu
- Division of Life Science; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
| | - Weichuan Yu
- Division of Biomedical Engineering; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
- Department of Electronic and Computer Engineering; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
| | - Ning Li
- Division of Life Science; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
- Division of Biomedical Engineering; The Hong Kong University of Science and Technology; Hong Kong SAR P. R. China
- HKUST Shenzhen Research Institute; Shenzhen P. R. China
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13
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Qing D, Yang Z, Li M, Wong WS, Guo G, Liu S, Guo H, Li N. Quantitative and Functional Phosphoproteomic Analysis Reveals that Ethylene Regulates Water Transport via the C-Terminal Phosphorylation of Aquaporin PIP2;1 in Arabidopsis. MOLECULAR PLANT 2016; 9:158-174. [PMID: 26476206 DOI: 10.1016/j.molp.2015.10.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 08/27/2015] [Accepted: 10/07/2015] [Indexed: 06/05/2023]
Abstract
Ethylene participates in the regulation of numerous cellular events and biological processes, including water loss, during leaf and flower petal wilting. The diverse ethylene responses may be regulated via dynamic interplays between protein phosphorylation/dephosphorylation and ubiquitin/26S proteasome-mediated protein degradation and protease cleavage. To address how ethylene alters protein phosphorylation through multi-furcated signaling pathways, we performed a (15)N stable isotope labelling-based, differential, and quantitative phosphoproteomics study on air- and ethylene-treated ethylene-insensitive Arabidopsis double loss-of-function mutant ein3-1/eil1-1. Among 535 non-redundant phosphopeptides identified, two and four phosphopeptides were up- and downregulated by ethylene, respectively. Ethylene-regulated phosphorylation of aquaporin PIP2;1 is positively correlated with the water flux rate and water loss in leaf. Genetic studies in combination with quantitative proteomics, immunoblot analysis, protoplast swelling/shrinking experiments, and leaf water loss assays on the transgenic plants expressing both the wild-type and S280A/S283A-mutated PIP2;1 in the both Col-0 and ein3eil1 genetic backgrounds suggest that ethylene increases water transport rate in Arabidopsis cells by enhancing S280/S283 phosphorylation at the C terminus of PIP2;1. Unknown kinase and/or phosphatase activities may participate in the initial up-regulation independent of the cellular functions of EIN3/EIL1. This finding contributes to our understanding of ethylene-regulated leaf wilting that is commonly observed during post-harvest storage of plant organs.
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Affiliation(s)
- Dongjin Qing
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Zhu Yang
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Mingzhe Li
- School of Life Science, Peking University, Beijing 100089, China
| | - Wai Shing Wong
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Guangyu Guo
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Shichang Liu
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Hongwei Guo
- School of Life Science, Peking University, Beijing 100089, China
| | - Ning Li
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China.
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14
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Yao SX, Zhang Y, Chen YL, Deng HT, Liu JY. SILARS: an effective stable isotope labeling with ammonium nitrate-15N in rice seedlings for quantitative proteomic analysis. MOLECULAR PLANT 2014; 7:1697-1700. [PMID: 25122698 DOI: 10.1093/mp/ssu089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Shi-Xiang Yao
- Laboratory of Plant Molecular Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yu Zhang
- Laboratory of Plant Molecular Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yu-Ling Chen
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hai-Teng Deng
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jin-Yuan Liu
- Laboratory of Plant Molecular Biology, Centre for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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15
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Sun X, Ouyang Y, Chu J, Yan J, Yu Y, Li X, Yang J, Yan C. An in-advance stable isotope labeling strategy for relative analysis of multiple acidic plant hormones in sub-milligram Arabidopsis thaliana seedling and a single seed. J Chromatogr A 2014; 1338:67-76. [PMID: 24636756 DOI: 10.1016/j.chroma.2014.02.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 02/03/2014] [Accepted: 02/20/2014] [Indexed: 12/26/2022]
Abstract
A sensitive and reliable in-advance stable isotope labeling strategy was developed for simultaneous relative quantification of 8 acidic plant hormones in sub-milligram amount of plant materials. Bromocholine bromide (BETA) and its deuterated counterpart D9-BETA were used to in-advance derivatize control and sample extracts individually, which were then combined and subjected to solid-phase extraction (SPE) purification followed by UPLC-MS/MS analysis. Relative quantification of target compounds was obtained by calculation of the peak area ratios of BETA/D9-BETA labeled plant hormones. The in-advance stable isotope labeling strategy realized internal standard-based relative quantification of multiple kinds of plant hormones independent of availability of internal standard of every analyte with enhanced sensitivity of 1-3 orders of magnitude. Meanwhile, the in-advance labeling contributes to higher sample throughput and more reliability. The method was successfully applied to determine 8 plant hormones in 0.8mg DW (dry weight) of seedlings and 4 plant hormones from single seed of Arabidopsis thaliana. The results show the potential of the method in relative quantification of multiple plant hormones in tiny plant tissues or organs, which will advance the knowledge of the crosstalk mechanism of plant hormones.
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Affiliation(s)
- Xiaohong Sun
- National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1-2 Beichen West Road, Beijing 100101, China
| | - Yue Ouyang
- National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1-2 Beichen West Road, Beijing 100101, China; Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Jinfang Chu
- National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1-2 Beichen West Road, Beijing 100101, China
| | - Jing Yan
- Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yan Yu
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiaoqiang Li
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jun Yang
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Cunyu Yan
- National Center for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 1-2 Beichen West Road, Beijing 100101, China.
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16
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Matthes A, Köhl K, Schulze WX. SILAC and alternatives in studying cellular proteomes of plants. Methods Mol Biol 2014; 1188:65-83. [PMID: 25059605 DOI: 10.1007/978-1-4939-1142-4_6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Quantitative proteomics by metabolic labeling has a high impact on the growing field of plant systems biology. SILAC has been pioneered and optimized for plant cell culture systems allowing for SILAC-based quantitative experiments in specialized experimental setups. In comparison to other model organisms, the application of SILAC to whole plants is challenging. As autotrophic organisms, plants under their natural growth conditions can hardly be fully labeled with stable isotope-coded amino acids. The metabolic labeling with inorganic nitrogen is therefore the method of choice for most whole-plant physiological questions. Plants can easily metabolize different inorganic nitrogen isotopes. The incorporation of the labeled inorganic nitrogen then results in proteins and metabolites with distinct molecular mass, which can be detected on a mass spectrometer. In comparative quantitative experiments, similarly as in SILAC experiments, treated and untreated samples are differentially labeled by nitrogen isotopes and jointly processed, thereby minimizing sample-to-sample variation. In recent years, heavy nitrogen labeling has become a widely used strategy in quantitative proteomics and novel approaches were developed for metabolite identification. Here we present a typical hydroponics setup, the workflow for processing of samples, mass spectrometry and data analysis for large-scale metabolic labeling experiments of whole plants.
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Affiliation(s)
- Annemarie Matthes
- Max Planck Institut für molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Golm, Germany
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17
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Yang Z, Guo G, Zhang M, Liu CY, Hu Q, Lam H, Cheng H, Xue Y, Li J, Li N. Stable isotope metabolic labeling-based quantitative phosphoproteomic analysis of Arabidopsis mutants reveals ethylene-regulated time-dependent phosphoproteins and putative substrates of constitutive triple response 1 kinase. Mol Cell Proteomics 2013; 12:3559-82. [PMID: 24043427 PMCID: PMC3861708 DOI: 10.1074/mcp.m113.031633] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Revised: 08/27/2013] [Indexed: 02/05/2023] Open
Abstract
Ethylene is an important plant hormone that regulates numerous cellular processes and stress responses. The mode of action of ethylene is both dose- and time-dependent. Protein phosphorylation plays a key role in ethylene signaling, which is mediated by the activities of ethylene receptors, constitutive triple response 1 (CTR1) kinase, and phosphatase. To address how ethylene alters the cellular protein phosphorylation profile in a time-dependent manner, differential and quantitative phosphoproteomics based on (15)N stable isotope labeling in Arabidopsis was performed on both one-minute ethylene-treated Arabidopsis ethylene-overly-sensitive loss-of-function mutant rcn1-1, deficient in PP2A phosphatase activity, and a pair of long-term ethylene-treated wild-type and loss-of-function ethylene signaling ctr1-1 mutants, deficient in mitogen-activated kinase kinase kinase activity. In total, 1079 phosphopeptides were identified, among which 44 were novel. Several one-minute ethylene-regulated phosphoproteins were found from the rcn1-1. Bioinformatic analysis of the rcn1-1 phosphoproteome predicted nine phosphoproteins as the putative substrates for PP2A phosphatase. In addition, from CTR1 kinase-enhanced phosphosites, we also found putative CTR1 kinase substrates including plastid transcriptionally active protein and calcium-sensing receptor. These regulatory proteins are phosphorylated in the presence of ethylene. Analysis of ethylene-regulated phosphosites using the group-based prediction system with a protein-protein interaction filter revealed a total of 14 kinase-substrate relationships that may function in both CTR1 kinase- and PP2A phosphatase-mediated phosphor-relay pathways. Finally, several ethylene-regulated post-translational modification network models have been built using molecular systems biology tools. It is proposed that ethylene regulates the phosphorylation of arginine/serine-rich splicing factor 41, plasma membrane intrinsic protein 2A, light harvesting chlorophyll A/B binding protein 1.1, and flowering bHLH 3 proteins in a dual-and-opposing fashion.
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Affiliation(s)
- Zhu Yang
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Guangyu Guo
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Manyu Zhang
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Claire Y. Liu
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Qin Hu
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Henry Lam
- ¶Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Han Cheng
- ‖Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yu Xue
- ‖Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jiayang Li
- **State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Ning Li
- From the ‡Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong SAR, China
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18
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Uhrig RG, Moorhead GB. Plant proteomics: Current status and future prospects. J Proteomics 2013; 88:34-6. [DOI: 10.1016/j.jprot.2013.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 01/18/2013] [Indexed: 01/08/2023]
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19
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Abreu IA, Farinha AP, Negrão S, Gonçalves N, Fonseca C, Rodrigues M, Batista R, Saibo NJM, Oliveira MM. Coping with abiotic stress: proteome changes for crop improvement. J Proteomics 2013; 93:145-68. [PMID: 23886779 DOI: 10.1016/j.jprot.2013.07.014] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 07/02/2013] [Accepted: 07/08/2013] [Indexed: 12/20/2022]
Abstract
Plant breeders need new and more precise tools to accelerate breeding programs that address the increasing needs for food, feed, energy and raw materials, while facing a changing environment in which high salinity and drought have major impacts on crop losses worldwide. This review covers the achievements and bottlenecks in the identification and validation of proteins with relevance in abiotic stress tolerance, also mentioning the unexpected consequences of the stress in allergen expression. While addressing the key pathways regulating abiotic stress plant adaptation, comprehensive data is presented on the proteins confirmed as relevant to confer tolerance. Promising candidates still to be confirmed are also highlighted, as well as the specific protein families and protein modifications for which detection and characterization is still a challenge. This article is part of a Special Issue entitled: Translational Plant Proteomics.
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Affiliation(s)
- Isabel A Abreu
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Genomics of Plant Stress Laboratory (GPlantS Lab), Av. da República, 2780-157 Oeiras, Portugal; iBET, Apartado 12, 2781-901 Oeiras, Portugal
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20
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Zhu L, Liu D, Li Y, Li N. Functional phosphoproteomic analysis reveals that a serine-62-phosphorylated isoform of ethylene response factor110 is involved in Arabidopsis bolting. PLANT PHYSIOLOGY 2013; 161:904-17. [PMID: 23188807 PMCID: PMC3561028 DOI: 10.1104/pp.112.204487] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 11/22/2012] [Indexed: 05/22/2023]
Abstract
Ethylene is a major plant hormone that plays an important role in regulating bolting, although the underlying molecular mechanism is not well understood. In this study, we report the novel finding that the serine-62 (Ser-62) phosphorylation of Ethylene Response Factor110 (ERF110) is involved in the regulation of bolting time. The gene expression and posttranslational modification (phosphorylation) of ERF110 were analyzed among ethylene-response mutants and ERF110 RNA-interfering knockout lines of Arabidopsis (Arabidopsis thaliana). Physiological and biochemical studies revealed that the Ser-62 phosphorylation of ERF110 was closely related to bolting time, that is, the ethylene-enhanced gene expression of ERF110 and the decreased Ser-62 phosphorylation of the ERF110 protein in Arabidopsis. The expression of a flowering homeotic APETALA1 gene was up-regulated by the Ser-62-phosphorylated isoform of the ERF110 transcription factor, which was necessary but not sufficient for normal bolting. The gene expression and phosphorylation of ERF110 were regulated by ethylene via both Ethylene-Insensitive2-dependent and -independent pathways, which constitute a dual-and-opposing mechanism of action for ethylene in the regulation of Arabidopsis bolting.
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Affiliation(s)
- Lin Zhu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, China
| | - Dandan Liu
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, China
| | - Yaojun Li
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, China
| | - Ning Li
- Division of Life Science, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region, China
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21
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Li Y, Shu Y, Peng C, Zhu L, Guo G, Li N. Absolute quantitation of isoforms of post-translationally modified proteins in transgenic organism. Mol Cell Proteomics 2012; 11:272-85. [PMID: 22442259 DOI: 10.1074/mcp.m111.016568] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Post-translational modification isoforms of a protein are known to play versatile biological functions in diverse cellular processes. To measure the molar amount of each post-translational modification isoform (P(isf)) of a target protein present in the total protein extract using mass spectrometry, a quantitative proteomic protocol, absolute quantitation of isoforms of post-translationally modified proteins (AQUIP), was developed. A recombinant ERF110 gene overexpression transgenic Arabidopsis plant was used as the model organism for demonstration of the proof of concept. Both Ser-62-independent (14)N-coded synthetic peptide standards and (15)N-coded ERF110 protein standard isolated from the heavy nitrogen-labeled transgenic plants were employed simultaneously to determine the concentration of all isoforms (T(isf)) of ERF110 in the whole plant cell lysate, whereas a pair of Ser-62-dependent synthetic peptide standards were used to quantitate the Ser-62 phosphosite occupancy (R(aqu)). The P(isf) was finally determined by integrating the two empirically measured variables using the following equation: P(isf) = T(isf) · R(aqu). The absolute amount of Ser-62-phosphorylated isoform of ERF110 determined using AQUIP was substantiated with a stable isotope labeling in Arabidopsis-based relative and accurate quantitative proteomic approach. The biological role of the Ser-62-phosphorylated isoform was demonstrated in transgenic plants.
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Affiliation(s)
- Yaojun Li
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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22
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Arsova B, Kierszniowska S, Schulze WX. The use of heavy nitrogen in quantitative proteomics experiments in plants. TRENDS IN PLANT SCIENCE 2012; 17:102-12. [PMID: 22154826 DOI: 10.1016/j.tplants.2011.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 10/28/2011] [Accepted: 11/04/2011] [Indexed: 05/04/2023]
Abstract
In the growing field of plant systems biology, there is an undisputed need for methods allowing accurate quantitation of proteins and metabolites. As autotrophic organisms, plants can easily metabolize different nitrogen isotopes, resulting in proteins and metabolites with distinct molecular mass that can be separated on a mass spectrometer. In comparative quantitative experiments, treated and untreated samples are differentially labeled by nitrogen isotopes and jointly processed, thereby minimizing sample-to-sample variation. In recent years, heavy nitrogen labeling has become a widely used strategy in quantitative proteomics and novel approaches have been developed for metabolite identification. Here, we present an overview of currently used experimental strategies in heavy nitrogen labeling in plants and provide background on the history and function of this quantitation technique.
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Affiliation(s)
- Borjana Arsova
- Max Planck Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476 Golm, Germany
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Li N. Quantitative measurement of phosphopeptides and proteins via stable isotope labeling in Arabidopsis and functional phosphoproteomic strategies. Methods Mol Biol 2011; 876:17-32. [PMID: 22576083 DOI: 10.1007/978-1-61779-809-2_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Protein phosphorylation is one type of posttranslational modification, which regulates a large number of cellular processes in plant cells. As an emerging powerful biotechnology that integrates all aspects of advantages from mass spectrometry, bioinformatics, and genomics, phosphoproteomics offers us an unprecedented high-throughput methodology with high sensitivity and dashing speed in identifying a large complement of phosphoproteins from plant cells within a relatively short period of time. Needless to say, phosphoproteomics has become an integral portion of life sciences, which penetrates various research disciplines of biology, agriculture, and forestry and irreversibly changes the way by which plant scientists study biological problems.Because phosphorylation/dephosphorylation of protein is dynamic in cells and the amount of phosphoproteins is low, the preservation of a phosphor group onto phosphosite throughout protein purification as well as enrichment of these phosphoproteins during purification has become a serious technical issue. To overcome difficulties commonly associated with phosphoprotein isolation, phosphopeptides' enrichment, and mass spectrometry analysis, we have developed a urea-based phosphoprotein purification protocol for plants, which instantly denatures plant proteins once the total cell content comes into contact with the UEB solution. To measure the alteration of phosphorylation on a phosphosite using mass spectrometer, an in vivo (15)N metabolic labeling method (SILIA, i.e., stable isotope labeling in Arabidopsis) has been developed and applied for Arabidopsis differential phosphoproteomics. Thus far, hundreds of signaling-specific phosphoproteins have been identified using both label-free and (15)N-labeled differential phosphoproteomic approach. The phosphoproteomics has allowed us to identify a number of signaling components mediating plant cell signaling in Arabidopsis. It is envisaged that a huge number of phosphosites will continue to be uncovered from phosphoproteomics in the near future, which will become instrumental for the development of plant phosphor-relay networks and molecular systems biology.
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Affiliation(s)
- Ning Li
- Division of life science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, SAR, China.
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