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Yu J, Tang L, Qiao F, Liu J, Li X. Physiological and Transcriptomic Analyses Reveal the Mechanisms Underlying Methyl Jasmonate-Induced Mannitol Stress Resistance in Banana. PLANTS (BASEL, SWITZERLAND) 2024; 13:712. [PMID: 38475558 DOI: 10.3390/plants13050712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 03/14/2024]
Abstract
Exogenous methyl jasmonate (MeJA) application has shown promising effects on plant defense under diverse abiotic stresses. However, the mechanisms underlying MeJA-induced stress resistance in bananas are unclear. Therefore, in this study, we treated banana plants with 100 μM MeJA before inducing osmotic stress using mannitol. Plant phenotype and antioxidant enzyme activity results demonstrated that MeJA improved osmotic stress resistance in banana plants. Thereafter, to explore the molecular mechanisms underlying MeJA-induced osmotic stress resistance in banana seedlings, we conducted high-throughput RNA sequencing (RNA-seq) using leaf and root samples of "Brazilian" banana seedlings treated with MeJA for 0 h and 8 h. RNA-seq analysis showed that MeJA treatment upregulated 1506 (leaf) and 3341 (root) genes and downregulated 1768 (leaf) and 4625 (root) genes. Then, we performed gene ontology and Kyoto Encyclopedia of Genes and Genomes analyses on the differentially expressed genes. We noted that linoleic acid metabolism was enriched in both root and leaf samples, and the genes of this pathway exhibited different expression patterns; 9S-LOX genes were highly induced by MeJA in the leaves, whereas 13S-LOX genes were highly induced in the roots. We also identified the promoters of these genes, as the differences in response elements may contribute to tissue-specific gene expression in response to MeJA application in banana seedlings. Overall, the findings of this study provide insights into the mechanisms underlying abiotic stress resistance in banana that may aid in the improvement of banana varieties relying on molecular breeding.
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Affiliation(s)
- Jiaxuan Yu
- School of Tropical Agriculture and Forest, Hainan University, Haikou 570228, China
- National Key Laboratory for Tropical Crop Breeding, Haikou 570228, China
| | - Lu Tang
- School of Tropical Agriculture and Forest, Hainan University, Haikou 570228, China
| | - Fei Qiao
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571737, China
| | - Juhua Liu
- National Key Laboratory for Tropical Crop Breeding, Haikou 570228, China
| | - Xinguo Li
- School of Tropical Agriculture and Forest, Hainan University, Haikou 570228, China
- National Key Laboratory for Tropical Crop Breeding, Haikou 570228, China
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Laznik Ž, Križman M, Zekič J, Roškarič M, Trdan S, Urbanek Krajnc A. The Role of Ascorbate-Glutathione System and Volatiles Emitted by Insect-Damaged Lettuce Roots as Navigation Signals for Insect and Slug Parasitic Nematodes. INSECTS 2023; 14:559. [PMID: 37367375 DOI: 10.3390/insects14060559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023]
Abstract
The effect of wireworm-damaged lettuce roots on the antioxidative defense system (ascorbate-glutathione cycle, photosynthetic pigments) and movement of insect/slug parasitic nematodes towards determined root exudates was studied in a glasshouse experiment. Lettuce seedlings were grown in a substrate soil in the absence/presence of wireworms (Elateridae). The ascorbate-glutathione system and photosynthetic pigments were analyzed by HPLC, while volatile organic compounds (VOC) emitted by lettuce roots were investigated by GC-MS. Herbivore-induced root compounds, namely 2,4-nonadienal, glutathione, and ascorbic acid, were selected for a chemotaxis assay with nematodes Steinernema feltiae, S. carpocapsae, Heterorhabditis bacteriophora, Phasmarhabditis papillosa, and Oscheius myriophilus. Root pests had a negative effect on the content of photosynthetic pigments in the leaves of infested plants, indicating that they reacted to the presence of reactive oxygen species (ROS). Using lettuce as a model plant, we recognized the ascorbate-glutathione system as a redox hub in defense response against wireworms and analyzed its role in root-exudate-mediated chemotaxis of nematodes. Infected plants also demonstrated increased levels of volatile 2,4-nonadienal. Entomopathogenic nematodes (EPNs, S. feltiae, S. carpocapsae, and H. bacteriophora) proved to be more mobile than parasitic nematodes O. myriophilus and P. papillosa towards chemotaxis compounds. Among them, 2,4-nonadienal repelled all tested nematodes. Most exudates that are involved in belowground tritrophic interactions remain unknown, but an increasing effort is being made in this field of research. Understanding more of these complex interactions would not only allow a better understanding of the rhizosphere but could also offer ecologically sound alternatives in the pest management of agricultural systems.
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Affiliation(s)
- Žiga Laznik
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Mitja Križman
- National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Jure Zekič
- National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Mihaela Roškarič
- Faculty of Agriculture and Life Sciences, University of Maribor, Pivola 10, SI-2311 Hoče, Slovenia
| | - Stanislav Trdan
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Andreja Urbanek Krajnc
- Faculty of Agriculture and Life Sciences, University of Maribor, Pivola 10, SI-2311 Hoče, Slovenia
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Integration of Electrical Signals and Phytohormones in the Control of Systemic Response. Int J Mol Sci 2023; 24:ijms24010847. [PMID: 36614284 PMCID: PMC9821543 DOI: 10.3390/ijms24010847] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Plants are constantly exposed to environmental stresses. Local stimuli sensed by one part of a plant are translated into long-distance signals that can influence the activities in distant tissues. Changes in levels of phytohormones in distant parts of the plant occur in response to various local stimuli. The regulation of hormone levels can be mediated by long-distance electrical signals, which are also induced by local stimulation. We consider the crosstalk between electrical signals and phytohormones and identify interaction points, as well as provide insights into the integration nodes that involve changes in pH, Ca2+ and ROS levels. This review also provides an overview of our current knowledge of how electrical signals and hormones work together to induce a systemic response.
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Rahman FU, Zhang Y, Khan IA, Liu R, Sun L, Wu Y, Jiang J, Fan X, Liu C. The Promoter Analysis of VvPR1 Gene: A Candidate Gene Identified through Transcriptional Profiling of Methyl Jasmonate Treated Grapevine (Vitis vinifera L.). PLANTS 2022; 11:plants11121540. [PMID: 35736691 PMCID: PMC9227488 DOI: 10.3390/plants11121540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022]
Abstract
Methyl jasmonate (MeJA) plays a vital role in plant disease resistance and also induces the expression of disease resistance genes in plants. In this study, a transcriptome analysis was performed on grapevine leaves after 12, 24 and 48 h of MeJA-100 μM treatment. A total of 1242 differentially expressed genes (DEGs) were identified from the transcriptome data, and the analysis of the DEGs showed that genes related to phytohormone signal transduction, jasmonic acid-mediated defense, Mitogen-activated protein kinase (MAPK), and flavonoid biosynthetic pathways were upregulated. As Pathogenesis-related gene 1 (PR1) is an important marker gene in plant defense also upregulated by MeJA treatment in RNA-seq data, the VvPR1 gene was selected for a promoter analysis with β-glucuronidase (GUS) through transient expression in tobacco leaves against abiotic stress. The results showed that the region from −1837 bp to −558 bp of the VvPR1 promoter is the key region in response to hormone and wound stress. In this study, we extended the available knowledge about induced defense by MeJA in a grapevine species that is susceptible to different diseases and identified the molecular mechanisms by which this defense might be mediated.
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Al-Zahrani HS, Alharby HF, Fahad S. Antioxidative Defense System, Hormones, and Metabolite Accumulation in Different Plant Parts of Two Contrasting Rice Cultivars as Influenced by Plant Growth Regulators Under Heat Stress. FRONTIERS IN PLANT SCIENCE 2022; 13:911846. [PMID: 35712584 PMCID: PMC9196032 DOI: 10.3389/fpls.2022.911846] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 04/13/2022] [Indexed: 05/20/2023]
Abstract
We examined the metabolic, hormonal, enzymatic, and non-enzymatic responses of various plant components (leaf, root, and xylem sap) to plant growth regulators [methyl jasmonate (MeJA), ascorbic acid (Vc), brassinosteroids (Br), triazoles (Tr), alpha-tocopherol (Ve), and control] under heat stress [ambient temperature (AT), heat stress at night time (HNT), and heat stress at day (HDT)] in heat-sensitive (IR-64) and heat-tolerant (Huanghuazhan) rice cultivars under greenhouse conditions. Our results showed that heat stress altered the antioxidant activities and hormonal balance and rigorously reduced total soluble sugars, proteins, and proline, whereas increases were observed in H2O2 and Malondialdehyde (MDA) content accumulation in the plant xylem sap and leaves of both tested cultivars; however, the impact was more pronounced in IR-64. The superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), Glutathione (GSH), dehydroascorbate reductase (DHAR), and monodehydroascorbate reductase (MDHAR) activities were higher in Huanghuazhan than in IR-64 in response to temperature stress, when compared to AT. Additionally, heat stress increased abscisic acid (ABA) levels in both rice cultivars, especially in IR-64. The highest concentrations of hormones were recorded in the roots, followed by the leaves and xylem sap, in both cultivars. HDT and HNT stresses severely reduced the concentrations of all of the cytokinin types (except for iP9G and tZ9G) and IAA in the different plant parts of rice cultivars. Moreover, HNT was more detrimental for hormone and metabolite synthesis in both cultivars. The growth regulators (especially Vc + Br + Ve + MeJA) were comparatively more effective in minimizing the hostile impact of heat stress on most of the studied traits and should be applied to obtain the optimum yield of rice in subtropical and tropical areas under changing climatic conditions.
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Affiliation(s)
- Hassan S. Al-Zahrani
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hesham F. Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, China
- Department of Agronomy, The University of Haripur, Haripur, Pakistan
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Mc Gee D, Archer L, Parkes R, Fleming GTA, Santos HM, Touzet N. The role of methyl jasmonate in enhancing biomass yields and bioactive metabolites in Stauroneis sp. (Bacillariophyceae) revealed by proteome and biochemical profiling. J Proteomics 2021; 249:104381. [PMID: 34536592 DOI: 10.1016/j.jprot.2021.104381] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 12/17/2022]
Abstract
The diatom Stauroneis sp. was previously identified as a promising source of fucoxanthin and omega-3 oils. Methyl jasmonate (MJ) supplementation is known to enhance metabolite yields in this species without impacting on growth or photosynthesis. Therefore, a label-free proteomics approach was undertaken to further evaluate the functional role of MJ on the diatom's physiology. Of the twenty cultivation regimes were screened, Uf/2 medium with green+white LED's induced the greatest metabolic response when exposed to 10 μM MJ treatment. These conditions significantly enhanced the pigment and total cellular lipids contents. The increase in fucoxanthin correlating with a 20% increase in Trolox reducing equivalent in the total antioxidant assay, indicating a non-enzymatic antioxidant role of fucoxanthin to mitigate the detrimental effects of a redox imbalance within chloroplasts. The proteomics identified 197 proteins up-regulated 48 h after MJ exposure including cell signalling cascades, photosynthetic processes, carbohydrate metabolism, lipid biosynthesis and chloroplast biogenesis. MJ strengthened the dark reactions of photosynthesis to support growth and metabolite fluxes. The MJ-induced ER stress protein triggered lipid body production, facilitating metabolite turnover and trafficking between cellular organelles. Plastid terminal oxidase and glutamate 1-semialdehyde 2,1-aminomutase may act as MJ-induced ROS responsive regulatory switch to support chloroplast biosynthesis. SIGNIFICANCE STATEMENT: Phytohormones represents a promising tool to enhance the high-value metabolite yields in plants and algae, however little is known of the role of methyl jasmonate in diatoms at a molecular level. A shotgun proteomics approach was undertaken to determine the influence of MJ on the diatom's cellular physiology in the marine diatom Stauroneis sp., revealing a signal transduction cascade leading to increased lipid and pigment content and identified promising targets for genetic engineering.
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Affiliation(s)
- Dónal Mc Gee
- Centre for Environmental Research, Sustainability and Innovation (CERIS), School of Science, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland.
| | - Lorraine Archer
- Centre for Environmental Research, Sustainability and Innovation (CERIS), School of Science, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
| | - Rachel Parkes
- Centre for Environmental Research, Sustainability and Innovation (CERIS), School of Science, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
| | - Gerard T A Fleming
- Microbiology Department, School of Natural Sciences, National University of Ireland, Galway, Ireland
| | - Hugo M Santos
- Bioscope Research Group, Department of Chemistry, Faculty of Science and Technology, Universidade NOVA de Lisboa, 2829_516 Caparica, Portugal
| | - Nicolas Touzet
- Centre for Environmental Research, Sustainability and Innovation (CERIS), School of Science, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland
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Aslam S, Gul N, Mir MA, Asgher M, Al-Sulami N, Abulfaraj AA, Qari S. Role of Jasmonates, Calcium, and Glutathione in Plants to Combat Abiotic Stresses Through Precise Signaling Cascade. FRONTIERS IN PLANT SCIENCE 2021; 12:668029. [PMID: 34367199 PMCID: PMC8340019 DOI: 10.3389/fpls.2021.668029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/21/2021] [Indexed: 05/11/2023]
Abstract
Plant growth regulators have an important role in various developmental processes during the life cycle of plants. They are involved in abiotic stress responses and tolerance. They have very well-developed capabilities to sense the changes in their external milieu and initiate an appropriate signaling cascade that leads to the activation of plant defense mechanisms. The plant defense system activation causes build-up of plant defense hormones like jasmonic acid (JA) and antioxidant systems like glutathione (GSH). Moreover, calcium (Ca2+) transients are also seen during abiotic stress conditions depicting the role of Ca2+ in alleviating abiotic stress as well. Therefore, these growth regulators tend to control plant growth under varying abiotic stresses by regulating its oxidative defense and detoxification system. This review highlights the role of Jasmonates, Calcium, and glutathione in abiotic stress tolerance and activation of possible novel interlinked signaling cascade between them. Further, phyto-hormone crosstalk with jasmonates, calcium and glutathione under abiotic stress conditions followed by brief insights on omics approaches is also elucidated.
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Affiliation(s)
- Saima Aslam
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Nadia Gul
- Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Mudasir A. Mir
- Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Srinagar, India
| | - Mohd. Asgher
- Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, India
| | - Nadiah Al-Sulami
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Aala A. Abulfaraj
- Department of Biological Sciences, Science and Arts College, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sameer Qari
- Genetics and Molecular Biology Central Laboratory (GMCL), Department of Biology, Aljumun University College, Umm Al-Qura University, Mecca, Saudi Arabia
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Yin Y, Liu Y, Cheng C, Yang Z, Luo Z, Fang W. iTRAQ-based proteomic and physiological analyses of broccoli sprouts in response to exogenous melatonin with ZnSO 4 stress. RSC Adv 2021; 11:12336-12347. [PMID: 35423784 PMCID: PMC8696995 DOI: 10.1039/d1ra00696g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/12/2021] [Indexed: 11/21/2022] Open
Abstract
Exogenous melatonin (10 μM) enhances ZnSO4 (4 mM) stress tolerance and regulates the isothiocyanate content of broccoli sprouts. Nevertheless, the molecular mechanism underlying the role of melatonin in isothiocyanate metabolism under ZnSO4 stress is unclear. The effects of exogenous melatonin on growth and isothiocyanate metabolism in broccoli sprouts under ZnSO4 stress during germination were investigated by physio-biochemical methods, quantification of relative gene expression levels, and the isobaric tags for the relative and absolute quantitation (iTRAQ) labelling technique. Compared with sprouts under ZnSO4 stress alone, sprout length, fresh weight and free calcium content increased significantly in sprouts under ZnSO4 stress plus melatonin treatment while electrolyte leakage and malonaldehyde content decreased. The glucosinolate content and myrosinase activity also significantly increased in sprouts under ZnSO4 stress plus melatonin treatment compared with the control, and thus the isothiocyanate and sulforaphane content increased markedly. Meanwhile, the expression of glucoraphanin biosynthesis genes, such as MYB28, CYP83A1, AOP2, BoSAT1, and BoHMT1 was significantly induced by melatonin in sprouts under ZnSO4 stress. Furthermore, compared with sprouts under ZnSO4 stress alone, a total of 145 proteins in broccoli sprouts under ZnSO4 stress plus melatonin treatment showed differential relative abundances. These proteins were divided into 13 functional classes and revealed that pathways for sulfur metabolism, glucosinolate biosynthesis, selenocompound metabolism, biosynthesis of secondary metabolites and peroxisome were significantly enriched. The present study indicates that exogenous melatonin alleviates the adverse effects of ZnSO4 stress on sprout growth and promotes glucoraphanin biosynthesis and the hydrolysis of glucoraphanin to form isothiocyanates in broccoli sprouts.
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Affiliation(s)
- Yongqi Yin
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
| | - Yin Liu
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
| | - Chao Cheng
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
| | - Zhengfei Yang
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
| | - Zhenlan Luo
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
| | - Weiming Fang
- College of Food Science and Engineering, Yangzhou University Yangzhou Jiangsu 210095 People's Republic of China +86-514-89786551 +86-514-89786551
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Mudrilov M, Ladeynova M, Berezina E, Grinberg M, Brilkina A, Sukhov V, Vodeneev V. Mechanisms of specific systemic response in wheat plants under different locally acting heat stimuli. JOURNAL OF PLANT PHYSIOLOGY 2021; 258-259:153377. [PMID: 33621780 DOI: 10.1016/j.jplph.2021.153377] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Mechanisms of the specific systemic response of plant to different adverse factors are poorly understood. We studied the mechanisms acting in wheat (Triticum aestivum L.) under the action of local burn and gradual heating. Both stimuli induce a variation potential (VP) propagation and a biphasic (fast and long-term phases) photosynthetic response in non-stimulated zones of plant with stimulus-specific parameters of the latter: the fast phase or long-term phase predominance in responses induced by burn or heating, respectively. The burn-induced VP and photosynthetic response attenuate with distance, while the heating-induced VP and photosynthetic response were of more stable amplitude in distant part of the stimulated plant. VP propagation in both cases induced apoplast alkalization with dynamics well corresponding to such of VP and of the fast phase of photosynthetic response. Gradual heating induced a significant rise in jasmonate production along with a decrease in stomatal conductance with characteristic times well corresponding to the long-term phase of the photosynthetic response. We suppose that the VP-induced pH shift is responsible for in the induction of the fast phase, while jasmonate production for the long-term phase of the photosynthetic response. The revealed differences in the systemic response to stressors studied, apparently, reflect two distinct plant adaptation strategies to fast and slow-growing stimuli. The immediate response in the tissue nearest to the damage zone is the most important under a fast-growing stimulus. The fundamentally different situation is under a slowly-growing stimulus which provokes long-term changes in the plant that ensure the preparation of the whole organism for impending environmental changes.
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Affiliation(s)
- Maxim Mudrilov
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Maria Ladeynova
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Ekaterina Berezina
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Marina Grinberg
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Anna Brilkina
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Vladimir Sukhov
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia
| | - Vladimir Vodeneev
- Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia.
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10
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Kolupaev YE, Yastreb TO. Jasmonate Signaling and Plant Adaptation to Abiotic Stressors (Review). APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821010117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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11
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Li J, Li Z, Zhao T, Yan X, Pang Q. Proteomic Analysis of Auricularia auricula-judae Under Freezing Treatment Revealed Proteins and Pathways Associated With Melanin Reduction. Front Microbiol 2021; 11:610173. [PMID: 33519763 PMCID: PMC7844145 DOI: 10.3389/fmicb.2020.610173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/09/2020] [Indexed: 11/13/2022] Open
Abstract
Auricularia auricula-judae is an edible nutrient-rich mushroom, which is a traditional medicinal resource in China. It is known that environment stimuli will affect the production of melanin by A. auricula-judae, but the mechanism of the effects of freezing treatment on melanin accumulation remains unknown. In the present study, the synthesis of melanin in A. auricula-judae was analyzed by physiological assays and a proteomics approach. Our findings showed that a longer freezing treatment causes a lighter color of A. auricula-judae fruiting bodies. The proteomic analysis showed that proteins involved in glycolysis/gluconeogenesis, tyrosine metabolism, ribosome, and arginine biosynthesis might contribute to the color differences in the A. auricula-judae after freezing treatment. This work will be expected to provide valuable information on the physiological and molecular mechanisms of freezing treatment on the color quality of A. auricula-judae.
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Affiliation(s)
- Jiawen Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Ziwei Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Tong Zhao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiufeng Yan
- College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Qiuying Pang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
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12
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Pan Y, Zhao S, Wang Z, Wang X, Zhang X, Lee Y, Xi J. Quantitative proteomics suggests changes in the carbohydrate metabolism of maize in response to larvae of the belowground herbivore Holotrichia parallela. PeerJ 2020; 8:e9819. [PMID: 32913681 PMCID: PMC7456535 DOI: 10.7717/peerj.9819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 08/05/2020] [Indexed: 12/23/2022] Open
Abstract
The larvae of Holotrichia parallela, a destructive belowground herbivore, may cause yield losses of up to 20% in maize in a typical year. To understand the protein-level mechanisms governing the response of maize to this herbivore, tandem mass tag (TMT) quantitative proteomics was used for the comparative analysis of protein abundance in the maize roots after H. parallela larval attack. A total of 351 upregulated proteins and 303 downregulated proteins were identified. Pathway enrichment analysis revealed that the differentially abundant proteins (DAPs) were most strongly associated with carbohydrate and energy metabolism pathways, such as glycolysis, pentose phosphate pathway and fructose and mannose metabolism. Most glycolysis-related proteins were significantly induced. In addition, H. parallela larval attack decreased the glucose concentrations in the roots. This study demonstrates that maize can manipulate carbohydrate metabolism by modifying glycolysis and pentose phosphate pathway response to root-feeding herbivorous attackers. The results of this study may help to establish a foundation for further functional studies of key protein-mediated responses to H. parallela larvae in maize.
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Affiliation(s)
- Yu Pan
- College of Plant Science, Jilin University, ChangChun, China
| | - Shiwen Zhao
- College of Plant Science, Jilin University, ChangChun, China
| | - Zhun Wang
- Changchun Customs Technology Center, ChangChun, China
| | - Xiao Wang
- College of Plant Science, Jilin University, ChangChun, China
| | - Xinxin Zhang
- College of Plant Science, Jilin University, ChangChun, China
| | - Yunshuo Lee
- College of Plant Science, Jilin University, ChangChun, China
| | - Jinghui Xi
- College of Plant Science, Jilin University, ChangChun, China
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Cheah BH, Lin HH, Chien HJ, Liao CT, Liu LYD, Lai CC, Lin YF, Chuang WP. SWATH-MS-based quantitative proteomics reveals a uniquely intricate defense response in Cnaphalocrocis medinalis-resistant rice. Sci Rep 2020; 10:6597. [PMID: 32759951 PMCID: PMC7406494 DOI: 10.1038/s41598-020-63470-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/26/2020] [Indexed: 12/20/2022] Open
Abstract
Cnaphalocrocis medinalis is a major insect pest of rice in Asia. A few defensive enzymes were reported to show higher activities in a resistant rice line (Qingliu) than in a susceptible rice line (TN1) upon leaffolder infestation. However, the overall molecular regulation of the rice defense response against leaffolder herbivory is unknown. Here, differential proteomic analysis by SWATH-MS was performed to identify differentially expressed proteins between the two rice varieties, Qingliu and TN1, at four time points of leaffolder herbivory, 0, 6, 24, and 72 h. Gene Ontology (GO) enrichment of the differentially expressed proteins indicated overrepresentation of (1) photosynthesis, (2) amino acid and derivative metabolic process, and (3) secondary metabolic process. Phenylalanine ammonia lyase and chalcone synthase, which catalyze flavonoid biosynthesis, and lipoxygenase, which catalyzes jasmonic acid biosynthesis, exhibited higher expression in Qingliu than in TN1 even before insect herbivory. Momentary activation of the light reaction and Calvin cycle was detected in Qingliu at 6 h and 24 h of insect herbivory, respectively. At 72 h of insect herbivory, amino acid biosynthesis and glutathione-mediated antioxidation were activated in Qingliu. A defense response involving jasmonic acid signaling, carbon remobilization, and the production of flavonoids and glutathione could underlie the resistance of Qingliu to leaffolder.
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Affiliation(s)
- Boon Huat Cheah
- Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan
| | - Hou-Ho Lin
- Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan
| | - Han-Ju Chien
- Institute of Molecular Biology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Chung-Ta Liao
- Crop Enviroment Division, Taichung District Agricultural Research and Extension Station, Changhua County, 51544, Taiwan
| | - Li-Yu D Liu
- Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Ya-Fen Lin
- Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan.
| | - Wen-Po Chuang
- Department of Agronomy, National Taiwan University, Taipei, 10617, Taiwan.
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Zhu C, Zhao G, Cui W, Li S, Yu X, Zhang Q. Utilization of i-TRAQ technology to determine protein modifications in pork soup in response to addition of salt. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Agnihotri A, Seth CS. Does jasmonic acid regulate photosynthesis, clastogenecity, and phytochelatins in Brassica juncea L. in response to Pb-subcellular distribution? CHEMOSPHERE 2020; 243:125361. [PMID: 31760287 DOI: 10.1016/j.chemosphere.2019.125361] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
The present experiment unravels how exogenous jasmonic acid regulates photosynthesis, clastogenecity, AsA-GSH cycle and phytochelatins in Brassica juncea L. in response to Pb-subcellular distribution. The plants were evaluated for leaf gas exchange parameters, Fv/Fm, lipid peroxidation, leaf epidermal structures and ABA content. Besides lead accumulation in root, shoot and its subcellular distribution pattern, its role as clastogen and/or aneuploidogen via DNA damage, genome size and ploidy variations, AsA-GSH cycle and quantification of PC2 and PC3 were performed as well. Results revealed that Pb inhibited plant growth, disturbed epidermal and guard cells and consequently worsen leaf gas exchange parameters (E, GH2O, A), Fv/Fm and photosynthetic pigments. For clastogenecity, results revealed considerable DNA damage and analysis for genome size showed that differences between unstressed, Pb-stress and JA application were not significant (P ≤ 0.05), however, ploidy ratio analysis proved partial aneuploidogenic role of Pb. The highest Pb exposure affected AsA-GSH cycle negatively but increased PC2 and PC3 contents uniformly in roots and leaves. Surprisingly, exogenous JA inhibits plant growth under non-stress but positively regulates growth, photosynthesis, AsA-GSH cycle, PC2 and PC3 contents and DNA damage but has no significant effect on variations in total genome size and ploidy under Pb-stress.
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Sadeghnezhad E, Sharifi M, Zare-Maivan H, Ahmadian Chashmi N. Time-dependent behavior of phenylpropanoid pathway in response to methyl jasmonate in Scrophularia striata cell cultures. PLANT CELL REPORTS 2020; 39:227-243. [PMID: 31707473 DOI: 10.1007/s00299-019-02486-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 11/02/2019] [Indexed: 05/13/2023]
Abstract
MeJA triggers a time-dependent behavior of the phenylpropanoid compounds. Plant cells produce a large number of metabolites in response to environmental factors. The cellular responses to environmental changes are orchestrated by signaling molecules, such as methyl jasmonate (MeJA). To understand how the MeJA changes the behavior of amino acids, carbohydrates, and phenylpropanoid compounds such as phenolic acids, phenylethanoid-glycosides, and flavonoids in Scrophularia striata cells; we monitored the metabolic responses for different times of exposure. In this study, we performed a time course analysis of metabolites and enzymes in S. striata cells exposed to MeJA (100 µM) and evaluated the metabolic flux towards carbon-rich secondary metabolites production. Moreover, we calculated the biosynthetic energy cost for free amino acids. Our results indicated that MeJA accelerates the sucrose degradation and directs the metabolic fluxes towards a pool of flavonoids and phenylethanoid glycosides through a change in enzyme behavior in the entry point and center of the phenylpropanoid pathway. MeJA also decreased and then raised the amino acid biosynthesis cost in S. striata cells in a time-dependent manner, indicating the cells evolve to utilize amino acids more economically by reducing cell growth. Finally, we classified the marked changes in the metabolites level and enzyme activities into three groups including early-, late-, and oscillatory-response groups to MeJA and summarized our findings as a model depicting pathway interactions during MeJA elicitation. Determination of metabolic levels in response to MeJA suggests that the changes in metabolic responses are time-dependent.
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Affiliation(s)
- Ehsan Sadeghnezhad
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohsen Sharifi
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Hassan Zare-Maivan
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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Han R, Gu C, Li R, Xu W, Wang S, Liu C, Qu C, Chen S, Liu G, Yu Q, Jiang J, Li H. Characterization and T-DNA insertion sites identification of a multiple-branches mutant br in Betula platyphylla × Betula pendula. BMC PLANT BIOLOGY 2019; 19:491. [PMID: 31718548 PMCID: PMC6852751 DOI: 10.1186/s12870-019-2098-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 10/23/2019] [Indexed: 05/30/2023]
Abstract
BACKGROUND Plant architecture, which is mostly determined by shoot branching, plays an important role in plant growth and development. Thus, it is essential to explore the regulatory molecular mechanism of branching patterns based on the economic and ecological importance. In our previous work, a multiple-branches birch mutant br was identified from 19 CINNAMOYL-COENZYME A REDUCTASE 1 (CCR1)-overexpressed transgenic lines, and the expression patterns of differentially expressed genes in br were analyzed. In this study, we further explored some other characteristics of br, including plant architecture, wood properties, photosynthetic characteristics, and IAA and Zeatin contents. Meanwhile, the T-DNA insertion sites caused by the insertion of exogenous BpCCR1 in br were identified to explain the causes of the mutation phenotypes. RESULTS The mutant br exhibited slower growth, more abundant and weaker branches, and lower wood basic density and lignin content than BpCCR1 transgenic line (OE2) and wild type (WT). Compared to WT and OE2, br had high stomatal conductance (Gs), transpiration rate (Tr), but a low non-photochemical quenching coefficient (NPQ) and chlorophyll content. In addition, br displayed an equal IAA and Zeatin content ratio of main branches' apical buds to lateral branches' apical buds and high ratio of Zeatin to IAA content. Two T-DNA insertion sites caused by the insertion of exogenous BpCCR1 in br genome were found. On one site, chromosome 2 (Chr2), no known gene was detected on the flanking sequence. The other site was on Chr5, with an insertion of 388 bp T-DNA sequence, resulting in deletion of 107 bp 5' untranslated region (UTR) and 264 bp coding sequence (CDS) on CORONATINE INSENSITIVE 1 (BpCOII). In comparison with OE2 and WT, BpCOI1 was down-regulated in br, and the sensitivity of br to Methyl Jasmonate (MeJA) was abnormal. CONCLUSIONS Plant architecture, wood properties, photosynthetic characteristics, and IAA and Zeatin contents in main and lateral branches' apical buds changed in br over the study's time period. One T-DNA insertion was identified on the first exon of BpCOI1, which resulted in the reduction of BpCOI1 expression and abnormal perception to MeJA in br. These mutation phenotypes might be associated with a partial loss of BpCOI1 in birch.
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Affiliation(s)
- Rui Han
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Chenrui Gu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Ranhong Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Wendi Xu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Shuo Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Chaoyi Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Chang Qu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Guifeng Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Qibin Yu
- Institute of Food and Agricultural Sciences, Citrus Research and Education Center, University of Florida, Lake Alfred, FL 33850 USA
| | - Jing Jiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
| | - Huiyu Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040 China
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Ruan J, Zhou Y, Zhou M, Yan J, Khurshid M, Weng W, Cheng J, Zhang K. Jasmonic Acid Signaling Pathway in Plants. Int J Mol Sci 2019; 20:ijms20102479. [PMID: 31137463 PMCID: PMC6566436 DOI: 10.3390/ijms20102479] [Citation(s) in RCA: 301] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 11/21/2022] Open
Abstract
Jasmonic acid (JA) and its precursors and dervatives, referred as jasmonates (JAs) are important molecules in the regulation of many physiological processes in plant growth and development, and especially the mediation of plant responses to biotic and abiotic stresses. JAs biosynthesis, perception, transport, signal transduction and action have been extensively investigated. In this review, we will discuss the initiation of JA signaling with a focus on environmental signal perception and transduction, JA biosynthesis and metabolism, transport of signaling molecules (local transmission, vascular bundle transmission, and airborne transportation), and biological function (JA signal receptors, regulated transcription factors, and biological processes involved).
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Affiliation(s)
- Jingjun Ruan
- College of Agriculture, Guizhou University, Guiyang 550025, China.
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yuexia Zhou
- College of Agriculture, Guizhou University, Guiyang 550025, China.
| | - Meiliang Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Jun Yan
- Schools of Pharmacy and Bioengineering, Chengdu University, Chengdu 610106, China.
| | - Muhammad Khurshid
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
- Institute of Biochemistry and Biotechnology, University of the Punjab, Lahore 54590, Pakistan.
| | - Wenfeng Weng
- College of Agriculture, Guizhou University, Guiyang 550025, China.
| | - Jianping Cheng
- College of Agriculture, Guizhou University, Guiyang 550025, China.
| | - Kaixuan Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Wang Y, Peng X, Salvato F, Wang Y, Yan X, Zhou Z, Lin J. Salt-adaptive strategies in oil seed crop Ricinus communis early seedlings (cotyledon vs. true leaf) revealed from proteomics analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:12-25. [PMID: 30593996 DOI: 10.1016/j.ecoenv.2018.12.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/10/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
Soil salinity is a major abiotic stress affecting crop growth and productivity. Ricinus communis has good salt tolerance and is also an important oilseed crop throughout the world. Early seedling stage (such as cotyledon expansion stage) is the most vulnerable period for plant under stresses. However, little information exist concerning the physiological and molecular mechanisms of Ricinus communis seedlings and the role play by cotyledons and true leaf under salt stress. In the present study, biomass, photosynthesis, chlorophyll fluorescence, inorganic ions and organic solutes contents were measured, and two dimensional gel electrophoresis-based proteomic technology was employed to identify the differentially abundant proteins in the salt-treated Ricinus communis cotyledons and true leaves. The results showed that salt stress reduced growth and photosynthesis in the seedlings. With increasing salinity, the Na+ content increased and K+ content decreased in both cotyledons and leaves, but the true leaves had lower Na+ and higher K+ contents. Soluble sugars and proline are the primary organic solutes to cope with osmotic stress. In addition, proteomic analysis revealed 30 and 42 differentially accumulated protein spots in castor cotyledon and true leaf under salt stress, respectively. Most of the identified proteins were involved in carbohydrate and energy metabolism, photosynthesis, genetic information process, reactive oxygen species metabolism, amino acid metabolism and cell structure. The physiological and proteomic results highlighted that cotyledons accumulated a large number of Na+ and provided more energy to help true leaves cope with salt stress. The true leaves saved carbon structures to synthesize osmotic substances, and the enhancement of chlorophyll synthesis and electron transfer in true leaves could also maintain photosynthesis under salt stress. These findings provide new insights into different physiological mechanisms in cotyledon and true leaf of Ricinus communis response to salt stress during early seedling stage.
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Affiliation(s)
- Yingnan Wang
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Harbin 150040, China; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Xiaoyuan Peng
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Harbin 150040, China
| | - Fernanda Salvato
- Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695-7716, USA
| | - Yongcui Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Xiufeng Yan
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Harbin 150040, China
| | - Zhiqiang Zhou
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Jixiang Lin
- Alkali Soil Natural Environmental Science Center, Northeast Forestry University/Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Harbin 150040, China; Department of Plant Pathology, North Carolina State University, Raleigh, NC 27695-7716, USA.
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20
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Wu X, Ding C, Baerson SR, Lian F, Lin X, Zhang L, Wu C, Hwang SY, Zeng R, Song Y. The roles of jasmonate signalling in nitrogen uptake and allocation in rice (Oryza sativa L.). PLANT, CELL & ENVIRONMENT 2019; 42:659-672. [PMID: 30251262 DOI: 10.1111/pce.13451] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/18/2018] [Indexed: 05/14/2023]
Abstract
Herbivore damage by chewing insects activates jasmonate (JA) signalling that can elicit systemic defense responses in rice. Few details are known, however, concerning the mechanism, whereby JA signalling modulates nutrient status in rice in response to herbivory. (15 NH4 )2 SO4 labelling experiments, proteomic surveys, and RT-qPCR analyses were used to identify the roles of JA signalling in nitrogen (N) uptake and allocation in rice plants. Exogenous applications of methyl jasmonate (MeJA) to rice seedlings led to significantly reduced N uptake in roots and reduced translocation of recently-absorbed 15 N from roots to leaves, likely occurring as a result of down-regulation of glutamine synthetase cytosolic isozyme 1-2 and ferredoxin-nitrite reductase. Shoot MeJA treatment resulted in a remobilization of endogenous unlabelled 14 N from leaves to roots, and root MeJA treatment also increased 14 N accumulation in roots but did not affect 14 N accumulation in leaves of rice. Additionally, proteomic and RT-qPCR experiments showed that JA-mediated plastid disassembly and dehydrogenases GDH2 up-regulation contribute to N release in leaves to support production of defensive proteins/compounds under N-limited condition. Collectively, our results indicate that JA signalling mediates large-scale systemic changes in N uptake and allocation in rice plants.
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Affiliation(s)
- Xiaoying Wu
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, School of Life Sciences, Huzhou University, Huzhou, China
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Chaohui Ding
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Scott R Baerson
- United States Department of Agriculture-Agricultural Research Service, Natural Products Utilization Research Unit, Oxford, Mississippi
| | - Fazhuo Lian
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xianhui Lin
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Liqin Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, School of Life Sciences, Huzhou University, Huzhou, China
| | - Choufei Wu
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, School of Life Sciences, Huzhou University, Huzhou, China
| | - Shaw-Yhi Hwang
- Department of Entomology, National Chung Hsing University, Taichung, Taiwan
| | - Rensen Zeng
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yuanyuan Song
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
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Action of methyl jasmonate and salt stress on antioxidant system of Arabidopsis plants defective in jasmonate signaling genes. UKRAINIAN BIOCHEMICAL JOURNAL 2018. [DOI: 10.15407/ubj90.05.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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22
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Aizat WM, Ibrahim S, Rahnamaie-Tajadod R, Loke KK, Goh HH, Noor NM. Proteomics (SWATH-MS) informed by transcriptomics approach of tropical herb Persicaria minor leaves upon methyl jasmonate elicitation. PeerJ 2018; 6:e5525. [PMID: 30186693 PMCID: PMC6118203 DOI: 10.7717/peerj.5525] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 08/06/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Jasmonic acid (JA) and its derivative, methyl JA (MeJA) are hormonal cues released by plants that signal defense response to curb damages from biotic and abiotic stresses. To study such response, a tropical herbal plant, Persicaria minor, which possesses pungent smell and various bioactivities including antimicrobial and anticancer, was treated with MeJA. Such elicitation has been performed in hairy root cultures and plants such as Arabidopsis and rice, yet how MeJA influenced the proteome of an herbal species like P. minor is unknown. METHOD In this study, P. minor plants were exogenously elicited with MeJA and leaf samples were subjected to SWATH-MS proteomics analysis. A previously published translated transcriptome database was used as a reference proteome database for a comprehensive protein sequence catalogue and to compare their differential expression. RESULTS From this proteomics informed by transcriptomics approach, we have successfully profiled 751 proteins of which 40 proteins were significantly different between control and MeJA-treated samples. Furthermore, a correlation analysis between both proteome and the transcriptome data sets suggests that significantly upregulated proteins were positively correlated with their cognate transcripts (Pearson's r = 0.677) while a weak correlation was observed for downregulated proteins (r = 0.147). DISCUSSION MeJA treatment induced the upregulation of proteins involved in various biochemical pathways including stress response mechanism, lipid metabolism, secondary metabolite production, DNA degradation and cell wall degradation. Conversely, proteins involved in energy expensive reactions such as photosynthesis, protein synthesis and structure were significantly downregulated upon MeJA elicitation. Overall protein-transcript correlation was also weak (r = 0.341) suggesting the existence of post-transcriptional regulation during such stress. In conclusion, proteomics analysis using SWATH-MS analysis supplemented by the transcriptome database allows comprehensive protein profiling of this non-model herbal species upon MeJA treatment.
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Affiliation(s)
- Wan Mohd Aizat
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Sarah Ibrahim
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | | | - Kok-Keong Loke
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Hoe-Han Goh
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Normah Mohd Noor
- Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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23
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Guo L, Wang P, Gu Z, Jin X, Yang R. Proteomic analysis of broccoli sprouts by iTRAQ in response to jasmonic acid. JOURNAL OF PLANT PHYSIOLOGY 2017; 218:16-25. [PMID: 28763705 DOI: 10.1016/j.jplph.2017.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 07/05/2017] [Accepted: 07/05/2017] [Indexed: 05/02/2023]
Abstract
Jasmonic acid (JA) is well known as a linolenic acid-derived signal molecule related to the plant response to biotic and abiotic stresses. JA can regulate various plant metabolisms, such as glucosinolate metabolism. In this study, the proteome profiles of broccoli sprouts under JA treatment were analyzed using the iTRAQ-based quantitative proteome approach. A total of 122 differentially expressed proteins participating in a wide range of physiological processes were confidently identified in broccoli sprouts treated with JA. Functional classification analysis showed that photosynthesis and protein synthesis were inhibited by JA treatment, thereby inhibiting sprout growth, while proteins related to carbohydrate catabolism and amino acid metabolism showed an increased expression. Additionally, proteins involved in defense and secondary metabolism were also up-regulated. Proteins related to glucosinolate biosynthesis and degradation were mediated by JA, leading to the accumulation of glucosinolates and sulforaphane. These results indicate that JA stimulated a defense response at the proteome level by redirecting metabolism of growth and physiology in broccoli sprouts.
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Affiliation(s)
- Liping Guo
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, People's Republic of China
| | - Pei Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Zhenxin Gu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xiaolin Jin
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Runqiang Yang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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24
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Tang X, Chen H, Gu Z, Zhang H, Chen YQ, Song Y, Chen W. Comparative Proteome Analysis between High Lipid-Producing Strain Mucor circinelloides WJ11 and Low Lipid-Producing Strain CBS 277.49. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:5074-5082. [PMID: 28557429 DOI: 10.1021/acs.jafc.7b00935] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mucor circinelloides is one of few oleaginous fungi that produces a useful oil rich in γ-linolenic acid, but it usually only produces <25% total lipid. Nevertheless, we isolated a new strain WJ11 that can produce up to 36% lipid of cell dry weight. In this study, we have systematically analyzed the global changes in protein levels between the high lipid-producing strain WJ11 and the low lipid-producing strain CBS 277.49 (15%, lipid/cell dry weight) at lipid accumulation phase through comparative proteome analysis. Proteome analysis demonstrated that the branched-chain amino acid and lysine metabolism, glycolytic pathway, and pentose phosphate pathway in WJ11 were up-regulated, while the activities of tricarboxylic acid cycle and branch point enzyme for synthesis of isoprenoids were retarded compared with CBS 277.49. The coordinated regulation at proteome level indicate that more acetyl-CoA and NADPH are provided for fatty acid biosynthesis in WJ11 compared with CBS 277.49.
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Affiliation(s)
- Xin Tang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
| | - Haiqin Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
| | - Zhennan Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
| | - Yong Q Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
| | - Yuanda Song
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
- Colin Ratledge Center for Microbial Lipids, School of Agriculture Engineering and Food Science, Shandong University of Technology , Zibo 255100, P.R. China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University , Wuxi 214122, P.R. China
- Beijing Innovation Center of Food Nutrition and Human Health, Beijing Technology and Business University , Beijing 100048, P.R. China
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25
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Differential fructan accumulation and expression of fructan biosynthesis, invertase and defense genes is induced in Agave tequilana plantlets by sucrose or stress-related elicitors. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.aggene.2016.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Yan Q, Gao X, Guo JS, Zhu ZW, Feng GZ. Insights into the molecular mechanism of the responses for Cyperus alternifolius to PhACs stress in constructed wetlands. CHEMOSPHERE 2016; 164:278-289. [PMID: 27592317 DOI: 10.1016/j.chemosphere.2016.08.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 07/28/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Cyperus alternifolius has been widely reported to be an effective phytoremediation plant in constructed wetland systems (CWs). In this context, an integrated biochemical and proteomic analysis of C. alternifolius leaves exposed to pharmaceutically active compounds (PhACs) in CWs was conducted to understand the mechanism of phytoremediation. The obtained results showed the antioxidant enzyme activities were induced throughout the experiment; however over time, the malondialdehyde content is not significantly different from the control and the photosynthetic pigment contents in plant were subsequently slowly recovered. Therefore, we concluded that reactive oxygen species could be effectively counteracted by the enhanced antioxidant enzyme activities, and therefore the photosynthetic pigments were ultimately restored. Leaf extract proteome maps were obtained through 2-DE, and an average of 55, 49, and 24 spots were significantly altered by 30, 100, and 500 μg/L of PhACs over the control, respectively. Protein expression patterns showed that proteins in C. alternifolius leaves are associated with photosynthesis, energy metabolism, defense, and protein synthesis. Moreover, the most relevant pathways modulated by PhACs were photosynthesis and energy metabolism. The protein expression involved in antioxidant defense and stress response generally increased in all the PhAC treatments. The regulated proteins may favor PhAC degradation in CWs; however, the role of these proteins in degrading PhACs remains unknown; further biochemical studies should be conducted. This study indicated that C. alternifolius can tolerate multiple PhACs.
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Affiliation(s)
- Qing Yan
- China National Rice Research Institute, Hangzhou 310006, China; Laboratory of Quality & Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture, Hangzhou 310006, China.
| | - Xu Gao
- Key Laboratory of the Three Gorges Reservoir Region's Eco -Environments of Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Jin-Song Guo
- Key Laboratory of the Three Gorges Reservoir Region's Eco -Environments of Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Zhi-Wei Zhu
- China National Rice Research Institute, Hangzhou 310006, China; Laboratory of Quality & Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture, Hangzhou 310006, China
| | - Guo-Zhong Feng
- China National Rice Research Institute, Hangzhou 310006, China.
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27
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Tang X, Zan X, Zhao L, Chen H, Chen YQ, Chen W, Song Y, Ratledge C. Proteomics analysis of high lipid-producing strain Mucor circinelloides WJ11: an explanation for the mechanism of lipid accumulation at the proteomic level. Microb Cell Fact 2016; 15:35. [PMID: 26867592 PMCID: PMC4750200 DOI: 10.1186/s12934-016-0428-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/19/2016] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The oleaginous fungus, Mucor circinelloides, is attracting considerable interest as it produces oil rich in γ-linolenic acid. Nitrogen (N) deficiency is a common strategy to trigger the lipid accumulation in oleaginous microorganisms. Although a simple pathway from N depletion in the medium to lipid accumulation has been elucidated at the enzymatic level, global changes at protein levels upon N depletion have not been investigated. In this study, we have systematically analyzed the changes at the levels of protein expression in M. circinelloides WJ11, a high lipid-producing strain (36 %, lipid/cell dry weight), during lipid accumulation. RESULTS Proteomic analysis demonstrated that N depletion increased the expression of glutamine synthetase, involved in ammonia assimilation, for the supply of cellular nitrogen but decreased the metabolism of amino acids. Upon N deficiency, many proteins (e.g., fructose-bisphosphate aldolase, glyceraldehyde-3-phosphate dehydrogenase, enolase, pyruvate kinase) involved in glycolytic pathway were up-regulated while proteins involved in the tricarboxylic acid cycle (e.g., isocitrate dehydrogenase, succinyl-CoA ligase, succinate dehydrogenase, fumarate hydratase) were down-regulated, indicating this activity was retarded thereby leading to a greater flux of carbon into fatty acid biosynthesis. Moreover, glucose-6-phosphate dehydrogenase, transaldolase and transketolase, which participate in the pentose phosphate pathway, were up-regulated, leading to the increased production of NADPH, the reducing power for fatty acid biosynthesis. Furthermore, protein and nucleic acid metabolism were down-regulated and some proteins involved in energy metabolism, signal transduction, molecular chaperone and redox homeostasis were up-regulated upon N depletion, which may be the cellular response to the stress produced by the onset of N deficiency. CONCLUSION N limitation increased those expressions of the proteins involved in ammonia assimilation but decreased that involved in the biosynthesis of amino acids. Upon N deprivation, the glycolytic pathway was up-regulated, while the activity of the tricarboxylic acid cycle was retarded, thus, leading more carbon flux to fatty acid biosynthesis. Moreover, the pentose phosphate pathway was up-regulated, then this would increase the production of NADPH. Together, coordinated regulation of central carbon metabolism upon N limitation, provides more carbon flux to acetyl-CoA and NADPH for fatty acid biosynthesis.
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Affiliation(s)
- Xin Tang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
| | - Xinyi Zan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
| | - Lina Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
| | - Haiqin Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- Synergistic Innovation Center for Food Safety and Nutrition, Wuxi, People's Republic of China.
| | - Yong Q Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- Synergistic Innovation Center for Food Safety and Nutrition, Wuxi, People's Republic of China.
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- Synergistic Innovation Center for Food Safety and Nutrition, Wuxi, People's Republic of China.
| | - Yuanda Song
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- Colin Ratledge Center for Microbial Lipids, School of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, People's Republic of China.
| | - Colin Ratledge
- Department of Biological Sciences, University of Hull, Hull, UK.
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28
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Buffon G, Blasi ÉAR, Adamski JM, Ferla NJ, Berger M, Santi L, Lavallée-Adam M, Yates JR, Beys-da-Silva WO, Sperotto RA. Physiological and Molecular Alterations Promoted by Schizotetranychus oryzae Mite Infestation in Rice Leaves. J Proteome Res 2015; 15:431-46. [PMID: 26667653 DOI: 10.1021/acs.jproteome.5b00729] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Infestation of phytophagous mite Schizotetranychus oryzae in rice causes critical yield losses. To better understand this interaction, we employed Multidimensional Protein Identification Technology (MudPIT) approach to identify differentially expressed proteins. We detected 18 and 872 unique proteins in control and infested leaves, respectively, along with 32 proteins more abundant in control leaves. S. oryzae infestation caused decreased abundance of proteins related to photosynthesis (mostly photosystem II-related), carbon assimilation and energy production, chloroplast detoxification, defense, and fatty acid and gibberellin synthesis. On the contrary, infestation caused increased abundance of proteins involved in protein modification and degradation, gene expression at the translation level, protein partitioning to different organelles, lipid metabolism, actin cytoskeleton remodeling, and synthesis of jasmonate, amino acid, and molecular chaperones. Our results also suggest that S. oryzae infestation promotes cell-wall remodeling and interferes with ethylene biosynthesis in rice leaves. Proteomic data were positively correlated with enzymatic assays and RT-qPCR analysis. Our findings describe the protein expression patterns of infested rice leaves and suggest that the acceptor side of PSII is probably the major damaged target in the photosynthetic apparatus. These data will be useful in future biotechnological approaches aiming to induce phytophagous mite resistance in rice.
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Affiliation(s)
| | | | | | | | | | | | - Mathieu Lavallée-Adam
- Department of Chemical Physiology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - John R Yates
- Department of Chemical Physiology, The Scripps Research Institute , La Jolla, California 92037, United States
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Černý M, Novák J, Habánová H, Cerna H, Brzobohatý B. Role of the proteome in phytohormonal signaling. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2015; 1864:1003-15. [PMID: 26721743 DOI: 10.1016/j.bbapap.2015.12.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 11/30/2015] [Accepted: 12/16/2015] [Indexed: 02/07/2023]
Abstract
Phytohormones are orchestrators of plant growth and development. A lot of time and effort has been invested in attempting to comprehend their complex signaling pathways but despite success in elucidating some key components, molecular mechanisms in the transduction pathways are far from being resolved. The last decade has seen a boom in the analysis of phytohormone-responsive proteins. Abscisic acid, auxin, brassinosteroids, cytokinin, ethylene, gibberellins, nitric oxide, oxylipins, strigolactones, salicylic acid--all have been analyzed to various degrees. For this review, we collected data from proteome-wide analyses resulting in a list of over 2000 annotated proteins from Arabidopsis proteomics and nearly 500 manually filtered protein families merged from all the data available from different species. We present the currently accepted model of phytohormone signaling, highlight the contributions made by proteomic-based research and describe the key nodes in phytohormone signaling networks, as revealed by proteome analysis. These include ubiquitination and proteasome mediated degradation, calcium ion signaling, redox homeostasis, and phosphoproteome dynamics. Finally, we discuss potential pitfalls and future perspectives in the field. This article is part of a Special Issue entitled: Plant Proteomics--a bridge between fundamental processes and crop production, edited by Dr. Hans-Peter Mock.
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Affiliation(s)
- Martin Černý
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Jan Novák
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Hana Habánová
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Hana Cerna
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
| | - Břetislav Brzobohatý
- Laboratory of Plant Molecular Biology, Institute of Biophysics AS CR, v.v.i. and CEITEC - Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, CZ-613 00 Brno, Czech Republic.
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30
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Truong DH, Bauwens J, Delaplace P, Mazzucchelli G, Lognay G, Francis F. Proteomic analysis of Arabidopsis thaliana (L.) Heynh responses to a generalist sucking pest (Myzus persicae Sulzer). PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17:1210-7. [PMID: 26153342 DOI: 10.1111/plb.12363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 07/01/2015] [Indexed: 05/24/2023]
Abstract
Herbivorous insects can cause severe cellular changes to plant foliage following infestations, depending on feeding behaviour. Here, a proteomic study was conducted to investigate the influence of green peach aphid (Myzus persicae Sulzer) as a polyphagous pest on the defence response of Arabidopsis thaliana (L.) Heynh after aphid colony establishment on the host plant (3 days). Analysis of about 574 protein spots on 2-DE gels revealed 31 differentially expressed protein spots. Twenty out of these 31 differential proteins were selected for analysis by mass spectrometry. In 12 of the 20 analysed spots, we identified seven and nine proteins using MALDI-TOF-MS and LC-ESI-MS/MS, respectively. Of the analysed spots, 25% contain two proteins. Different metabolic pathways were modulated in Arabidopsis leaves according to aphid feeding: most corresponded to carbohydrate, amino acid and energy metabolism, photosynthesis, defence response and translation. This paper has established a survey of early alterations induced in the proteome of Arabidopsis by M. persicae aphids. It provides valuable insights into the complex responses of plants to biological stress, particularly for herbivorous insects with sucking feeding behaviour.
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Affiliation(s)
- D-H Truong
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - J Bauwens
- Functional & Evolutionary Entomology, University of Liège, Gembloux Agro-Bio Tech, Gembloux, Belgium
| | - P Delaplace
- Plant Biology, University of Liège, Gembloux Agro-Bio Tech, Gembloux, Belgium
| | - G Mazzucchelli
- Mass Spectrometry Laboratory, University of Liège, Liège, Belgium
| | - G Lognay
- Analytical Chemistry Laboratory, University of Liège, Gembloux Agro-Bio Tech, Gembloux, Belgium
| | - F Francis
- Functional & Evolutionary Entomology, University of Liège, Gembloux Agro-Bio Tech, Gembloux, Belgium
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31
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Gollan PJ, Tikkanen M, Aro EM. Photosynthetic light reactions: integral to chloroplast retrograde signalling. CURRENT OPINION IN PLANT BIOLOGY 2015; 27:180-91. [PMID: 26318477 DOI: 10.1016/j.pbi.2015.07.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 07/15/2015] [Accepted: 07/17/2015] [Indexed: 05/07/2023]
Abstract
Chloroplast retrograde signalling is ultimately dependent on the function of the photosynthetic light reactions and not only guides the acclimation of the photosynthetic apparatus to changing environmental and metabolic cues, but has a much wider influence on the growth and development of plants. New information generated during the past few years about regulation of photosynthetic light reactions and identification of the underlying regulatory proteins has paved the way towards better understanding of the signalling molecules produced in chloroplasts upon changes in the environment. Likewise, the availability of various mutants lacking regulatory functions has made it possible to address the role of excitation energy distribution and electron flow in the thylakoid membrane in inducing the retrograde signals from chloroplasts to the nucleus. Such signalling molecules also induce and interact with hormonal signalling cascades to provide comprehensive information from chloroplasts to the nucleus.
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Affiliation(s)
- Peter J Gollan
- Molecular Plant Biology, Department of Biochemistry, University of Turku, FIN-20014 Turku, Finland
| | - Mikko Tikkanen
- Molecular Plant Biology, Department of Biochemistry, University of Turku, FIN-20014 Turku, Finland
| | - Eva-Mari Aro
- Molecular Plant Biology, Department of Biochemistry, University of Turku, FIN-20014 Turku, Finland.
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32
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Oliveira MB, Junior ML, Grossi-de-Sá MF, Petrofeza S. Exogenous application of methyl jasmonate induces a defense response and resistance against Sclerotinia sclerotiorum in dry bean plants. JOURNAL OF PLANT PHYSIOLOGY 2015; 182:13-22. [PMID: 26037694 DOI: 10.1016/j.jplph.2015.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 05/27/2023]
Abstract
Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic fungal pathogen that causes a disease known as white mold, which is a major problem for dry bean (Phaseolus vulgaris L.) and other crops in many growing areas in Brazil. To investigate the role of methyl jasmonate (MeJA) in defending dry bean plants against S. sclerotiorum, we used suppression subtractive hybridization (SSH) of cDNA and identified genes that are differentially expressed during plant-pathogen interactions after treatment. Exogenous MeJA application enhanced resistance to the pathogen, and SSH analyses led to the identification of 94 unigenes, presumably involved in a variety of functions, which were classified into several functional categories, including metabolism, signal transduction, protein biogenesis and degradation, and cell defense and rescue. Using RT-qPCR, some unigenes were found to be differentially expressed in a time-dependent manner in dry bean plants during the interaction with S. sclerotiorum after MeJA treatment, including the pathogenesis-related protein PR3 (chitinase), PvCallose (callose synthase), PvNBS-LRR (NBS-LRR resistance-like protein), PvF-box (F-box family protein-like), and a polygalacturonase inhibitor protein (PGIP). Based on these expression data, the putative roles of differentially expressed genes were discussed in relation to the disease and MeJA resistance induction. Changes in the activity of the pathogenesis-related proteins β-1,3-glucanase, chitinase, phenylalanine ammonia-lyase, and peroxidase in plants after MeJA treatment and following inoculation of the pathogen were also investigated as molecular markers of induced resistance. Foliar application of MeJA induced partial resistance against S. sclerotiorum in plants as well as a consistent increase in pathogenesis-related protein activities. Our findings provide new insights into the physiological and molecular mechanisms of resistance induced by MeJA in the P. vulgaris-S. sclerotiorum pathosystem.
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Affiliation(s)
- Marília Barros Oliveira
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74.001-940, Goiânia, GO, Brazil
| | - Murillo Lobo Junior
- Embrapa Arroz e Feijão, Caixa Postal 179, 75375-000 Santo Antônio de Goiás, GO, Brazil
| | - Maria Fátima Grossi-de-Sá
- Embrapa Recursos Genéticos e Biotecnologia, Laboratório de Interação Molecular Planta-Praga, W5 Norte, 70770-900 Brasília, DF, Brazil
| | - Silvana Petrofeza
- Instituto de Ciências Biológicas, Universidade Federal de Goiás, 74.001-940, Goiânia, GO, Brazil.
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33
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Shi J, Wang L, Ma CY, Lv HP, Chen ZM, Lin Z. Aroma changes of black tea prepared from methyl jasmonate treated tea plants. J Zhejiang Univ Sci B 2015; 15:313-21. [PMID: 24711352 DOI: 10.1631/jzus.b1300238] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Methyl jasmonate (MeJA) was widely applied in promoting food quality. Aroma is one of the key indicators in judging the quality of tea. This study examined the effect of exogenous MeJA treatment on tea aroma. The aroma components in black tea prepared from MeJA-treated fresh tea leaves were extracted using headspace solid-phase microextraction (HS-SPME) and were analyzed using gas chromatography-mass spectrometry (GC-MS) and GC-olfactometry (GC-O). Forty-five volatile compounds were identified. The results revealed that the MeJA-treated black tea had higher levels of terpene alcohols and hexenyl esters than the untreated tea. Moreover, several newly components, including copaene, cubenol, and indole, were induced by the MeJA treatment. The activities of polyphenol oxidase and β-glucosidase in fresh tea leaves changed after the MeJA treatment. Quantitative real-time polymerase chain reaction (qRT-PCR) analysis indicated that the gene expression levels of polyphenol oxidase and β-primeverosidase were upregulated by two and three folds, respectively, by the MeJA treatment (P<0.01); however, the gene expression of β-glucosidase was downregulated to a half level. In general, the aroma quality of the MeJA-treated black tea was clearly improved.
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Affiliation(s)
- Jiang Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China; Lin'an Agriculture Bureau, Lin'an 311300, China
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Albacete A, Martínez-Andújar C, Martínez-Pérez A, Thompson AJ, Dodd IC, Pérez-Alfocea F. Unravelling rootstock×scion interactions to improve food security. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:2211-26. [PMID: 25754404 PMCID: PMC4986720 DOI: 10.1093/jxb/erv027] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 12/12/2014] [Accepted: 01/08/2015] [Indexed: 05/19/2023]
Abstract
While much recent science has focused on understanding and exploiting root traits as new opportunities for crop improvement, the use of rootstocks has enhanced productivity of woody perennial crops for centuries. Grafting of vegetable crops has developed very quickly in the last 50 years, mainly to induce shoot vigour and to overcome soil-borne diseases in solanaceous and cucurbitaceous crops. In most cases, such progress has largely been due to empirical interactions between farmers, gardeners, and botanists, with limited insights into the underlying physiological mechanisms. Only during the last 20 years has science realized the potential of this old activity and studied the physiological and molecular mechanisms involved in rootstock×scion interactions, thereby not only explaining old phenomena but also developing new tools for crop improvement. Rootstocks can contribute to food security by: (i) increasing the yield potential of elite varieties; (ii) closing the yield gap under suboptimal growing conditions; (iii) decreasing the amount of chemical (pesticides and fertilizers) contaminants in the soil; (iv) increasing the efficiency of use of natural (water and soil) resources; (v) generating new useful genotypic variability (via epigenetics); and (vi) creating new products with improved quality. The potential of grafting is as broad as the genetic variability able to cross a potential incompatibility barrier between the rootstock and the scion. Therefore, understanding the mechanisms underlying the phenotypic variability resulting from rootstock×scion×environment interactions will certainly contribute to developing and exploiting rootstocks for food security.
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Affiliation(s)
- Alfonso Albacete
- Departamento de Nutrición Vegetal, CEBAS-CSIC, Campus Universitario de Espinardo, 25, E-30100 Murcia, Spain
| | - Cristina Martínez-Andújar
- Departamento de Nutrición Vegetal, CEBAS-CSIC, Campus Universitario de Espinardo, 25, E-30100 Murcia, Spain
| | - Ascensión Martínez-Pérez
- Departamento de Nutrición Vegetal, CEBAS-CSIC, Campus Universitario de Espinardo, 25, E-30100 Murcia, Spain
| | - Andrew J Thompson
- School of Energy, Environment and Agrifood, Cranfield University, Bedfordshire MK43 0AL, UK
| | - Ian C Dodd
- Lancaster Environment Centre, University of Lancaster, Lancaster LA1 4YQ, UK
| | - Francisco Pérez-Alfocea
- Departamento de Nutrición Vegetal, CEBAS-CSIC, Campus Universitario de Espinardo, 25, E-30100 Murcia, Spain
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Pireyre M, Burow M. Regulation of MYB and bHLH transcription factors: a glance at the protein level. MOLECULAR PLANT 2015; 8:378-88. [PMID: 25667003 DOI: 10.1016/j.molp.2014.11.022] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/10/2014] [Accepted: 11/24/2014] [Indexed: 05/07/2023]
Abstract
In complex, constantly changing environments, plants have developed astonishing survival strategies. These elaborated strategies rely on rapid and precise gene regulation mediated by transcription factors (TFs). TFs represent a large fraction of plant genomes and among them, MYBs and basic helix-loop-helix (bHLHs) have unique inherent properties specific to plants. Proteins of these two TF families can act as homo- or heterodimers, associate with proteins from other protein families, or form MYB/bHLH complexes to regulate distinct cellular processes. The ability of MYBs and bHLHs to interact with multiple protein partners has evolved to keep up with the increased metabolic complexity of multi-cellular organisms. Association and disassociation of dynamic TF complexes in response to developmental and environmental cues are controlled through a plethora of regulatory mechanisms specifically modulating TF activity. Regulation of TFs at the protein level is critical for efficient and precise control of their activity, and thus provides the mechanistic basis for a rapid on-and-off switch of TF activity. In this review, examples of post-translational modifications, protein-protein interactions, and subcellular mobilization of TFs are discussed with regard to the relevance of these regulatory mechanisms for the specific activation of MYBs and bHLHs in response to a given environmental stimulus.
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Affiliation(s)
- Marie Pireyre
- DynaMo DNRF Center of Excellence, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Meike Burow
- DynaMo DNRF Center of Excellence, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
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Response of direct or priming defense against Botrytis cinerea to methyl jasmonate treatment at different concentrations in grape berries. Int J Food Microbiol 2015; 194:32-9. [DOI: 10.1016/j.ijfoodmicro.2014.11.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 11/01/2014] [Accepted: 11/06/2014] [Indexed: 11/16/2022]
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37
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Yan H, Yoo MJ, Koh J, Liu L, Chen Y, Acikgoz D, Wang Q, Chen S. Molecular Reprogramming of Arabidopsis in Response to Perturbation of Jasmonate Signaling. J Proteome Res 2014; 13:5751-66. [DOI: 10.1021/pr500739v] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Huizhuan Yan
- Department
of Horticulture, Zhejiang University, Hangzhou 310058, China
| | | | | | - Lihong Liu
- Department
of Horticulture, Zhejiang University, Hangzhou 310058, China
| | | | | | - Qiaomei Wang
- Department
of Horticulture, Zhejiang University, Hangzhou 310058, China
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Huot B, Yao J, Montgomery BL, He SY. Growth-defense tradeoffs in plants: a balancing act to optimize fitness. MOLECULAR PLANT 2014; 7:1267-1287. [PMID: 24777989 PMCID: PMC4168297 DOI: 10.1093/mp/ssu049] [Citation(s) in RCA: 838] [Impact Index Per Article: 83.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Growth-defense tradeoffs are thought to occur in plants due to resource restrictions, which demand prioritization towards either growth or defense, depending on external and internal factors. These tradeoffs have profound implications in agriculture and natural ecosystems, as both processes are vital for plant survival, reproduction, and, ultimately, plant fitness. While many of the molecular mechanisms underlying growth and defense tradeoffs remain to be elucidated, hormone crosstalk has emerged as a major player in regulating tradeoffs needed to achieve a balance. In this review, we cover recent advances in understanding growth-defense tradeoffs in plants as well as what is known regarding the underlying molecular mechanisms. Specifically, we address evidence supporting the growth-defense tradeoff concept, as well as known interactions between defense signaling and growth signaling. Understanding the molecular basis of these tradeoffs in plants should provide a foundation for the development of breeding strategies that optimize the growth-defense balance to maximize crop yield to meet rising global food and biofuel demands.
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Affiliation(s)
- Bethany Huot
- Department of Energy Plant Research Laboratory, Michigan State University, MI 48824, USA; Cell and Molecular Biology Program, Michigan State University, MI 48824, USA
| | - Jian Yao
- Department of Energy Plant Research Laboratory, Michigan State University, MI 48824, USA
| | - Beronda L Montgomery
- Department of Energy Plant Research Laboratory, Michigan State University, MI 48824, USA; Cell and Molecular Biology Program, Michigan State University, MI 48824, USA; Department of Biochemistry and Molecular Biology, Michigan State University, MI 48824, USA
| | - Sheng Yang He
- Department of Energy Plant Research Laboratory, Michigan State University, MI 48824, USA; Cell and Molecular Biology Program, Michigan State University, MI 48824, USA; Department of Plant Biology, Michigan State University, MI 48824, USA; Howard Hughes Medical Institute-Gordon and Betty Moore Foundation, Michigan State University, MI 48933, USA.
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Attaran E, Major IT, Cruz JA, Rosa BA, Koo AJK, Chen J, Kramer DM, He SY, Howe GA. Temporal Dynamics of Growth and Photosynthesis Suppression in Response to Jasmonate Signaling. PLANT PHYSIOLOGY 2014; 165:1302-1314. [PMID: 24820026 PMCID: PMC4081338 DOI: 10.1104/pp.114.239004] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/11/2014] [Indexed: 05/18/2023]
Abstract
Biotic stress constrains plant productivity in natural and agricultural ecosystems. Repression of photosynthetic genes is a conserved plant response to biotic attack, but how this transcriptional reprogramming is linked to changes in photosynthesis and the transition from growth- to defense-oriented metabolism is poorly understood. Here, we used a combination of noninvasive chlorophyll fluorescence imaging technology and RNA sequencing to determine the effect of the defense hormone jasmonate (JA) on the growth, photosynthetic efficiency, and gene expression of Arabidopsis (Arabidopsis thaliana) rosette leaves. High temporal resolution was achieved through treatment with coronatine (COR), a high-affinity agonist of the JA receptor. We show that leaf growth is rapidly arrested after COR treatment and that this effect is tightly correlated with changes in the expression of genes involved in growth, photosynthesis, and defense. Rapid COR-induced expression of defense genes occurred concomitantly with the repression of photosynthetic genes but was not associated with a reduced quantum efficiency of photosystem II. These findings support the view that photosynthetic capacity is maintained during the period in which stress-induced JA signaling redirects metabolism from growth to defense. Chlorophyll fluorescence images captured in a multiscale time series, however, revealed a transient COR-induced decrease in quantum efficiency of photosystem II at dawn of the day after treatment. Physiological studies suggest that this response results from delayed stomatal opening at the night-day transition. These collective results establish a high-resolution temporal view of how a major stress response pathway modulates plant growth and photosynthesis and highlight the utility of chlorophyll fluorescence imaging for revealing transient stress-induced perturbations in photosynthetic performance.
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Affiliation(s)
- Elham Attaran
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Ian T Major
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Jeffrey A Cruz
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Bruce A Rosa
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Abraham J K Koo
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Jin Chen
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - David M Kramer
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Sheng Yang He
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Gregg A Howe
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
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Barkla BJ, Castellanos-Cervantes T, de León JLD, Matros A, Mock HP, Perez-Alfocea F, Salekdeh GH, Witzel K, Zörb C. Elucidation of salt stress defense and tolerance mechanisms of crop plants using proteomics--current achievements and perspectives. Proteomics 2014; 13:1885-900. [PMID: 23723162 DOI: 10.1002/pmic.201200399] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 04/12/2013] [Accepted: 04/24/2013] [Indexed: 12/18/2022]
Abstract
Salinity is a major threat limiting the productivity of crop plants. A clear demand for improving the salinity tolerance of the major crop plants is imposed by the rapidly growing world population. This review summarizes the achievements of proteomic studies to elucidate the response mechanisms of selected model and crop plants to cope with salinity stress. We also aim at identifying research areas, which deserve increased attention in future proteome studies, as a prerequisite to identify novel targets for breeding strategies. Such areas include the impact of plant-microbial communities on the salinity tolerance of crops under field conditions, the importance of hormone signaling in abiotic stress tolerance, and the significance of control mechanisms underlying the observed changes in the proteome patterns. We briefly highlight the impact of novel tools for future proteome studies and argue for the use of integrated approaches. The evaluation of genetic resources by means of novel automated phenotyping facilities will have a large impact on the application of proteomics especially in combination with metabolomics or transcriptomics.
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Li Y, Nie Y, Zhang Z, Ye Z, Zou X, Zhang L, Wang Z. Comparative proteomic analysis of methyl jasmonate-induced defense responses in different rice cultivars. Proteomics 2014; 14:1088-101. [DOI: 10.1002/pmic.201300104] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 01/20/2014] [Accepted: 01/24/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Yunfeng Li
- Laboratory of Physiological Plant Pathology; South China Agricultural University; Guangzhou P. R. China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
| | - Yanfang Nie
- College of Natural Resources and Environment; South China Agricultural University; Guangzhou P. R. China
| | - Zhihui Zhang
- Laboratory of Physiological Plant Pathology; South China Agricultural University; Guangzhou P. R. China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
| | - Zhijian Ye
- Laboratory of Physiological Plant Pathology; South China Agricultural University; Guangzhou P. R. China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
| | - Xiaotao Zou
- Laboratory of Physiological Plant Pathology; South China Agricultural University; Guangzhou P. R. China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
| | - Lianhui Zhang
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
| | - Zhenzhong Wang
- Laboratory of Physiological Plant Pathology; South China Agricultural University; Guangzhou P. R. China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control; South China Agricultural University; Guangzhou P. R. China
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Albacete AA, Martínez-Andújar C, Pérez-Alfocea F. Hormonal and metabolic regulation of source-sink relations under salinity and drought: from plant survival to crop yield stability. Biotechnol Adv 2013; 32:12-30. [PMID: 24513173 DOI: 10.1016/j.biotechadv.2013.10.005] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 10/17/2013] [Accepted: 10/20/2013] [Indexed: 10/26/2022]
Abstract
Securing food production for the growing population will require closing the gap between potential crop productivity under optimal conditions and the yield captured by farmers under a changing environment, which is termed agronomical stability. Drought and salinity are major environmental factors contributing to the yield gap ultimately by inducing premature senescence in the photosynthetic source tissues of the plant and by reducing the number and growth of the harvestable sink organs by affecting the transport and use of assimilates between and within them. However, the changes in source-sink relations induced by stress also include adaptive changes in the reallocation of photoassimilates that influence crop productivity, ranging from plant survival to yield stability. While the massive utilization of -omic technologies in model plants is discovering hundreds of genes with potential impacts in alleviating short-term applied drought and salinity stress (usually measured as plant survival), only in relatively few cases has an effect on crop yield stability been proven. However, achieving the former does not necessarily imply the latter. Plant survival only requires water status conservation and delayed leaf senescence (thus maintaining source activity) that is usually accompanied by growth inhibition. However, yield stability will additionally require the maintenance or increase in sink activity in the reproductive structures, thus contributing to the transport of assimilates from the source leaves and to delayed stress-induced leaf senescence. This review emphasizes the role of several metabolic and hormonal factors influencing not only the source strength, but especially the sink activity and their inter-relations, and their potential to improve yield stability under drought and salinity stresses.
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Affiliation(s)
- Alfonso A Albacete
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura (C.E.B.A.S.), Consejo Superior de Investigaciones Científicas (C.S.I.C.), Campus Universitario de Espinardo, P.O. Box 164, E-30100 Murcia, Spain
| | - Cristina Martínez-Andújar
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura (C.E.B.A.S.), Consejo Superior de Investigaciones Científicas (C.S.I.C.), Campus Universitario de Espinardo, P.O. Box 164, E-30100 Murcia, Spain
| | - Francisco Pérez-Alfocea
- Departamento de Nutrición Vegetal, Centro de Edafología y Biología Aplicada del Segura (C.E.B.A.S.), Consejo Superior de Investigaciones Científicas (C.S.I.C.), Campus Universitario de Espinardo, P.O. Box 164, E-30100 Murcia, Spain.
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Zhang X, Liu X, Chai W, Wei J, Wang Q, Li B, Li H. The use of proteomic analysis for exploring the phytoremediation mechanism of Scirpus triqueter to pyrene. JOURNAL OF HAZARDOUS MATERIALS 2013; 260:1001-1007. [PMID: 23892167 DOI: 10.1016/j.jhazmat.2013.06.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Accepted: 06/26/2013] [Indexed: 06/02/2023]
Abstract
Scirpus triqueter has been reported to be an effective phytoremediation plant for pyrene dissipation. The study of S. triqueter in response to pyrene is crucial to understand the mechanism of phytoremediation. To gain a certain extent understanding of S. triqueter in response to pyrene, S. triqueter seedlings were exposed to 50 mg kg(-1) pyrene and a comparative proteomic analysis of total proteins was performed. 37 and 55 proteins were significantly differentially expressed in the shoot and root of S. triqueter upon exposure, respectively. 24 proteins (17 proteins in shoot and 7 proteins in root) were identified on the basis of the homology of their peptide profiles with existing protein sequences using mass spectrometry analysis. Analysis of protein expression patterns revealed that proteins in shoot associated with photosynthesis, defense, energy and matter metabolism, coenzyme metabolism and protein metabolism. Moreover, the proteins related photosynthesis accounted for more than 70% of the identified proteins. The proteins in root associated with stress, defense, energy metabolism, protein modification and carbohydrate metabolism. Pyrene appears to have an important deleterious effect on primary carbon metabolism, the synthesis of proteins and signal transduction. The present study demonstrates the use of proteomic approach to help us understand the phytoremediation mechanism of S. triqueter.
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Affiliation(s)
- Xinying Zhang
- Laboratory of Environmental Remediation, College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
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Gharechahi J, Khalili M, Hasanloo T, Salekdeh GH. An integrated proteomic approach to decipher the effect of methyl jasmonate elicitation on the proteome of Silybum marianum L. hairy roots. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2013; 70:115-22. [PMID: 23771036 DOI: 10.1016/j.plaphy.2013.05.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 05/21/2013] [Indexed: 06/02/2023]
Abstract
Jasmonate and its methyl derivative, methyl jasmonate (MeJA), are naturally occurring compounds that mediate several plant physiological processes in response to pathogen attack, wounding, and ozone. Exogenous application of jasmonates triggers defense responses that resemble those initiated by pathogen infection and also modulates the production of certain secondary metabolites in a variety of plant species. In this study, we treated the hairy root cultures of Silybum marianum L. with 100 μM MeJA and then measured the content of Silymarin (SLM). We observed that the SLM content increased significantly after 48 h of MeJA treatment and remained constant for 120 h. However, MeJA treatment caused a significant growth reduction after 96 h incubation. The activity of lipoxygenase as a key enzyme in the jasmonate biosynthesis pathway and anti-oxidative enzymes; peroxidase and ascorbate peroxidase was also significantly increased after MeJA treatment. To elucidate the global effect of jasmonate on gene expression of S. marianum, we employed high resolution two-dimensional gel electrophoresis coupled with tandem mass spectrometry. Out of 670 reproducibly detected protein spots which were analyzed on each given gel, 32 spots were up- or down regulated upon MeJA treatment. Of them, ten proteins such as ER binding protein, glutamine synthetase, pathogenesis-related protein, caffeoyl CoA O-methyltransferase, and profilin-1 could be identified by mass spectrometry analysis. The possible implications of the identified proteins on physiological outcome of MeJA application in S. marianum hairy root culture will be discussed.
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Affiliation(s)
- Javad Gharechahi
- Department of Systems Biology, Agricultural Biotechnology Research Institute of Iran, Karaj, Iran.
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Methyl jasmonate-induced cell death in grapevine requires both lipoxygenase activity and functional octadecanoid biosynthetic pathway. Biologia (Bratisl) 2013. [DOI: 10.2478/s11756-013-0220-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Printz B, Sergeant K, Guignard C, Renaut J, Hausman JF. Physiological and proteome study of sunflowers exposed to a polymetallic constraint. Proteomics 2013; 13:1993-2015. [PMID: 23595958 DOI: 10.1002/pmic.201200400] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 02/27/2013] [Accepted: 03/19/2013] [Indexed: 01/26/2023]
Abstract
The new energy requirements of the growing world population together with the actual ecological trend of phytoremediation have made challenging the cultivation of energetic crops on nonagricultural lands, such as those contaminated with trace elements. In this study, phenotypical characterization and biochemical analyses were combined to emphasize the global response of young sunflowers (Helianthus annuus L.) grown in hydroponic media contaminated with different Cd, Ni, and Zn concentrations. Leaves and roots of sunflowers reaching the stage "2-extended leaves" and exposed to different trace metal concentrations were harvested and analyzed by 2D-DIGE in order to study in depth the molecular responses of the young plants upon the polymetallic exposure. Proteomics confirmed the observed global reduction in growth and development. If photosynthetic light reactions and carbon metabolism were the most affected in leaves, in roots significant disruptions were observed in proteins involved in respiration, oxidative balance, protein and gene expression, and in the induction of programmed cell death. Elemental analyses of the plantlets indicated a profound impact of the treatment resulting in misbalance in essential micronutrients. Altogether, this study highlights the sensitivity of the sunflower to a polymetallic pollution and indicates that its use as a remediative tool of trace element polluted soils is limited.
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Affiliation(s)
- Bruno Printz
- Centre de Recherche Public-Gabriel Lippmann, Département Environnement et Agrobiotechnologies, Belvaux, Luxembourg
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Nabity PD, Zavala JA, DeLucia EH. Herbivore induction of jasmonic acid and chemical defences reduce photosynthesis in Nicotiana attenuata. JOURNAL OF EXPERIMENTAL BOTANY 2013; 64:685-94. [PMID: 23264519 PMCID: PMC3542056 DOI: 10.1093/jxb/ers364] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Herbivory initiates a shift in plant metabolism from growth to defence that may reduce fitness in the absence of further herbivory. However, the defence-induced changes in carbon assimilation that precede this reallocation in resources remain largely undetermined. This study characterized the response of photosynthesis to herbivore induction of jasmonic acid (JA)-related defences in Nicotiana attenuata to increase understanding of these mechanisms. It was hypothesized that JA-induced defences would immediately reduce the component processes of photosynthesis upon attack and was predicted that wild-type plants would suffer greater reductions in photosynthesis than plants lacking JA-induced defences. Gas exchange, chlorophyll fluorescence, and thermal spatial patterns were measured together with the production of defence-related metabolites after attack and through recovery. Herbivore damage immediately reduced electron transport and gas exchange in wild-type plants, and gas exchange remained suppressed for several days after attack. The sustained reductions in gas exchange occurred concurrently with increased defence metabolites in wild-type plants, whereas plants lacking JA-induced defences suffered minimal suppression in photosynthesis and no increase in defence metabolite production. This suppression in photosynthesis occurred only after sustained defence signalling and defence chemical mobilization, whereas a short bout of feeding damage only transiently altered components of photosynthesis. It was identified that lipoxygenase signalling interacted with photosynthetic electron transport and that the resulting JA-related metabolites reduced photosynthesis. These data represent a metabolic cost to mounting a chemical defence against herbivory and link defence-signalling networks to the differential effects of herbivory on photosynthesis in remaining leaf tissues in a time-dependent manner.
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Affiliation(s)
- Paul D. Nabity
- Department of Plant Biology and Institute of Genomic Biology, University of Illinois, Urbana, IL, USA
| | - Jorge A. Zavala
- Cátedra de Bioquímica/INBA, Facultad de Agronomía, University of Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Evan H. DeLucia
- Department of Plant Biology and Institute of Genomic Biology, University of Illinois, Urbana, IL, USA
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Ullmann-Zeunert L, Muck A, Wielsch N, Hufsky F, Stanton MA, Bartram S, Böcker S, Baldwin IT, Groten K, Svatoš A. Determination of ¹⁵N-incorporation into plant proteins and their absolute quantitation: a new tool to study nitrogen flux dynamics and protein pool sizes elicited by plant-herbivore interactions. J Proteome Res 2012; 11:4947-60. [PMID: 22905865 DOI: 10.1021/pr300465n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herbivory leads to changes in the allocation of nitrogen among different pools and tissues; however, a detailed quantitative analysis of these changes has been lacking. Here, we demonstrate that a mass spectrometric data-independent acquisition approach known as LC-MS(E), combined with a novel algorithm to quantify heavy atom enrichment in peptides, is able to quantify elicited changes in protein amounts and (15)N flux in a high throughput manner. The reliable identification/quantitation of rabbit phosphorylase b protein spiked into leaf protein extract was achieved. The linear dynamic range, reproducibility of technical and biological replicates, and differences between measured and expected (15)N-incorporation into the small (SSU) and large (LSU) subunits of ribulose-1,5-bisphosphate-carboxylase/oxygenase (RuBisCO) and RuBisCO activase 2 (RCA2) of Nicotiana attenuata plants grown in hydroponic culture at different known concentrations of (15)N-labeled nitrate were used to further evaluate the procedure. The utility of the method for whole-plant studies in ecologically realistic contexts was demonstrated by using (15)N-pulse protocols on plants growing in soil under unknown (15)N-incorporation levels. Additionally, we quantified the amounts of lipoxygenase 2 (LOX2) protein, an enzyme important in antiherbivore defense responses, demonstrating that the approach allows for in-depth quantitative proteomics and (15)N flux analyses of the metabolic dynamics elicited during plant-herbivore interactions.
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Guo J, Pang Q, Wang L, Yu P, Li N, Yan X. Proteomic identification of MYC2-dependent jasmonate-regulated proteins in Arabidopsis thaliana. Proteome Sci 2012; 10:57. [PMID: 23009548 PMCID: PMC3598991 DOI: 10.1186/1477-5956-10-57] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 09/18/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND MYC2, a basic helix-loop-helix (bHLH) domain-containing transcription factor, participates in the jasmonate (JA) signaling pathway and is involved in the modulation of diverse JA functions. However, a comprehensive list of MYC2-dependent JA-responsive proteins has yet to be defined. RESULTS In this paper, we report the comparative proteomics of wild-type (WT) plants and jin1-9, a MYC2 mutant plant, in response to methyl jasmonate (MeJA) treatment. Proteins from mock/MeJA-treated jin1-9 and WT samples were extracted and separated by two-dimensional gel electrophoresis. Twenty-seven JA-mediated proteins demonstrated differential expression modulated by MYC2. We observed that MYC2 negatively regulates the accumulation of JA-dependent indolic glucosinolate-related proteins and exhibits opposite effects on the biosynthetic enzymes involved aliphatic glucosinolate pathways. In addition, proteins involved in the tricarboxylic acid cycle and a majority of the MeJA-inducible proteins that are involved in multiple protective systems against oxidative stress were reduced in jin1-9/myc2 sample compared to the WT sample. These results support a positive role for MYC2 in regulating JA-mediated carbohydrate metabolism and oxidative stress tolerance. CONCLUSIONS We have identified MYC2-dependent jasmonate-regulated proteins in Arabidopsis thaliana by performing two-dimensional gel electrophoresis and MALDI-TOF/TOF MS analysis. The observed pattern of protein expression suggests that MYC2 has opposite effects on the biosynthetic enzymes of indolic and aliphatic glucosinolate pathways and positively regulates JA-mediated carbohydrate metabolism and oxidative stress tolerance-related proteins. Furthermore, it is very interesting to note that MYC2 plays opposite roles in the modulation of a subset of JA-regulated photosynthetic proteins during short-term and long-term JA signaling. This study will enhance our understanding of the function of MYC2 in JA signaling in Arabidopsis thaliana.
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Affiliation(s)
- Jing Guo
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.,Alkali Soil Natural Environmental Science Center; Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Qiuying Pang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.,Alkali Soil Natural Environmental Science Center; Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Lihua Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Ping Yu
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Nan Li
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Xiufeng Yan
- College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
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Büchel K, McDowell E, Nelson W, Descour A, Gershenzon J, Hilker M, Soderlund C, Gang DR, Fenning T, Meiners T. An elm EST database for identifying leaf beetle egg-induced defense genes. BMC Genomics 2012; 13:242. [PMID: 22702658 PMCID: PMC3439254 DOI: 10.1186/1471-2164-13-242] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 05/15/2012] [Indexed: 01/07/2023] Open
Abstract
Background Plants can defend themselves against herbivorous insects prior to the onset of larval feeding by responding to the eggs laid on their leaves. In the European field elm (Ulmus minor), egg laying by the elm leaf beetle ( Xanthogaleruca luteola) activates the emission of volatiles that attract specialised egg parasitoids, which in turn kill the eggs. Little is known about the transcriptional changes that insect eggs trigger in plants and how such indirect defense mechanisms are orchestrated in the context of other biological processes. Results Here we present the first large scale study of egg-induced changes in the transcriptional profile of a tree. Five cDNA libraries were generated from leaves of (i) untreated control elms, and elms treated with (ii) egg laying and feeding by elm leaf beetles, (iii) feeding, (iv) artificial transfer of egg clutches, and (v) methyl jasmonate. A total of 361,196 ESTs expressed sequence tags (ESTs) were identified which clustered into 52,823 unique transcripts (Unitrans) and were stored in a database with a public web interface. Among the analyzed Unitrans, 73% could be annotated by homology to known genes in the UniProt (Plant) database, particularly to those from Vitis, Ricinus, Populus and Arabidopsis. Comparative in silico analysis among the different treatments revealed differences in Gene Ontology term abundances. Defense- and stress-related gene transcripts were present in high abundance in leaves after herbivore egg laying, but transcripts involved in photosynthesis showed decreased abundance. Many pathogen-related genes and genes involved in phytohormone signaling were expressed, indicative of jasmonic acid biosynthesis and activation of jasmonic acid responsive genes. Cross-comparisons between different libraries based on expression profiles allowed the identification of genes with a potential relevance in egg-induced defenses, as well as other biological processes, including signal transduction, transport and primary metabolism. Conclusion Here we present a dataset for a large-scale study of the mechanisms of plant defense against insect eggs in a co-evolved, natural ecological plant–insect system. The EST database analysis provided here is a first step in elucidating the transcriptional responses of elm to elm leaf beetle infestation, and adds further to our knowledge on insect egg-induced transcriptomic changes in plants. The sequences identified in our comparative analysis give many hints about novel defense mechanisms directed towards eggs.
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Affiliation(s)
- Kerstin Büchel
- Freie Universität Berlin, Applied Zoology / Animal Ecology, Berlin, Germany
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