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Yang K, Huang Y, Li Z, Zeng Q, Dai X, Lv J, Zong X, Deng K, Zhang J. Overexpression of Nta-miR6155 confers resistance to Phytophthora nicotianae and regulates growth in tobacco ( Nicotiana tabacum L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1281373. [PMID: 38053762 PMCID: PMC10694243 DOI: 10.3389/fpls.2023.1281373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/26/2023] [Indexed: 12/07/2023]
Abstract
Tobacco black shank induced by Phytophthora nicotianae causes significant yield losses in tobacco plants. MicroRNAs (miRNAs) play a pivotal role in plant biotic stress responses and have great potential in tobacco breeding for disease resistance. However, the roles of miRNAs in tobacco plants in response to P. nicotianae infection has not been well characterized. In this study, we found that Nta-miR6155, a miRNA specific to Solanaceae crops, was significantly induced in P. nicotianae infected tobacco. Some of predicted target genes of Nta-miR6155 were also observed to be involved in disease resistance. To further investigate the function of miR6155 in tobacco during P. nicotianae infection, Nta-miR6155 overexpression plants (miR6155-OE) were generated in the Honghua Dajinyuan tobacco variety (HD, the main cultivated tobacco variety in China). We found that the Nta-miR6155 overexpression enhanced the resistance in tobacco towards P. nicotianae infections. The level of reactive oxygen species (ROS) was significantly lower and antioxidant enzyme activities were significantly higher in miR6155-OE plants than those in control HD plants during P. nicotianae infection. In addition, we found that the accumulation of salicylic acid and the expression of salicylic acid biosynthesis and signal transduction-related genes is significantly higher in miR6155-OE plants in comparison to the control HD plants. Furthermore, we found that Nta-miR6155 cleaved target genes NtCIPK18 to modulate resistance towards P. nicotianae in tobacco plants. Additionally, phenotypic analysis of miR6155-OE plants showed that Nta-miR6155 could inhibit the growth of tobacco by suppressing nitrogen uptake and photosynthesis. In conclusion, our findings indicated that miR6155 plays a crucial role in the regulation of growth and resistance against P. nicotianae infections in tobacco plants.
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Affiliation(s)
- Kaiyue Yang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Yuanyuan Huang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Zexuan Li
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Qian Zeng
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Xiumei Dai
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
- Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, China
- Chongqing Tobacco Science Research Institute, Chongqing, China
| | - Jun Lv
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
- Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, China
| | - Xuefeng Zong
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
- Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, China
| | - Kexuan Deng
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
- Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, China
- Chongqing Tobacco Science Research Institute, Chongqing, China
| | - Jiankui Zhang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
- Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, China
- Chongqing Tobacco Science Research Institute, Chongqing, China
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Wang W, Zhang J, Cao Y, Yang X, Wang F, Yang J, Wang X. NtbHLH49, a jasmonate-regulated transcription factor, negatively regulates tobacco responses to Phytophthora nicotianae. FRONTIERS IN PLANT SCIENCE 2022; 13:1073856. [PMID: 36561439 PMCID: PMC9764443 DOI: 10.3389/fpls.2022.1073856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Tobacco black shank caused by Phytophthora nicotianae is a devastating disease that causes huge losses to tobacco production across the world. Investigating the regulatory mechanism of tobacco resistance to P. nicotianae is of great importance for tobacco resistance breeding. The jasmonate (JA) signaling pathway plays a pivotal role in modulating plant pathogen resistance, but the mechanism underlying JA-mediated tobacco resistance to P. nicotianae remains largely unclear. This work explored the P. nicotianae responses of common tobacco cultivar TN90 using plants with RNAi-mediated silencing of NtCOI1 (encoding the perception protein of JA signal), and identified genes involved in this process by comparative transcriptome analyses. Interestingly, the majority of the differentially expressed bHLH transcription factor genes, whose homologs are correlated with JA-signaling, encode AtBPE-like regulators and were up-regulated in NtCOI1-RI plants, implying a negative role in regulating tobacco response to P. nicotianae. A subsequent study on NtbHLH49, a member of this group, showed that it's negatively regulated by JA treatment or P. nicotianae infection, and its protein was localized to the nucleus. Furthermore, overexpression of NtbHLH49 decreased tobacco resistance to P. nicotianae, while knockdown of its expression increased the resistance. Manipulation of NtbHLH49 expression also altered the expression of a set of pathogen resistance genes. This study identified a set of genes correlated with JA-mediated tobacco response to P. nicotianae, and revealed the function of AtBPE-like regulator NtbHLH49 in regulating tobacco resistance to this pathogen, providing insights into the JA-mediated tobacco responses to P. nicotianae.
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Affiliation(s)
- Wenjing Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Jianhui Zhang
- Sichuan Tobacco Science Research Institute, Chengdu, China
| | - Yi Cao
- Academy of Guizhou Tobacco Sciences, Guiyang, China
| | - Xingyou Yang
- Sichuan Tobacco Science Research Institute, Chengdu, China
| | - Fenglong Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Jinguang Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiaoqiang Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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Gómez-Pérez D, Kemen E. Predicting Lifestyle from Positive Selection Data and Genome Properties in Oomycetes. Pathogens 2021; 10:807. [PMID: 34202069 PMCID: PMC8308905 DOI: 10.3390/pathogens10070807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 11/30/2022] Open
Abstract
As evidenced in parasitism, host and niche shifts are a source of genomic and phenotypic diversification. Exemplary is a reduction in the core metabolism as parasites adapt to a particular host, while the accessory genome often maintains a high degree of diversification. However, selective pressures acting on the genome of organisms that have undergone recent lifestyle or host changes have not been fully investigated. Here, we developed a comparative genomics approach to study underlying adaptive trends in oomycetes, a eukaryotic phylum with a wide and diverse range of economically important plant and animal parasitic lifestyles. Our analysis reveals converging evolution on biological processes for oomycetes that have similar lifestyles. Moreover, we find that certain functions, in particular carbohydrate metabolism, transport, and signaling, are important for host and environmental adaptation in oomycetes. Given the high correlation between lifestyle and genome properties in our oomycete dataset, together with the known convergent evolution of fungal and oomycete genomes, we developed a model that predicts plant pathogenic lifestyles with high accuracy based on functional annotations. These insights into how selective pressures correlate with lifestyle may be crucial to better understand host/lifestyle shifts and their impact on the genome.
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Affiliation(s)
| | - Eric Kemen
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, 72074 Tübingen, Germany;
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Seo SY, Wi SJ, Park KY. Functional switching of NPR1 between chloroplast and nucleus for adaptive response to salt stress. Sci Rep 2020; 10:4339. [PMID: 32152424 PMCID: PMC7062895 DOI: 10.1038/s41598-020-61379-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 02/13/2020] [Indexed: 02/02/2023] Open
Abstract
Salt stress causes rapid accumulation of nonexpressor of pathogenesis-related genes 1 (NPR1) protein, known as the redox-sensitive transcription coactivator, which in turn elicits many adaptive responses. The NPR1 protein transiently accumulates in chloroplast stroma under salt stress, which attenuates stress-triggered down-regulation of photosynthetic capability. We observed that oligomeric NPR1 in chloroplasts and cytoplasm had chaperone activity, whereas monomeric NPR1 in the nucleus did not. Additionally, NPR1 overexpression resulted in reinforcement of morning-phased and evening-phased circadian clock. NPR1 overexpression also enhanced antioxidant activity and reduced stress-induced reactive oxygen species (ROS) generation at early stage, followed with transcription levels for ROS detoxification. These results suggest a functional switch from a molecular chaperone to a transcriptional coactivator, which is dependent on subcellular localization. Our findings imply that dual localization of NPR1 is related to proteostasis and redox homeostasis in chloroplasts for emergency restoration as well as transcriptional coactivator in the nucleus for adaptation to stress.
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Affiliation(s)
- So Yeon Seo
- Department of Biology, Sunchon National University, Sunchon, Chonnam, Republic of Korea
| | - Soo Jin Wi
- Department of Biology, Sunchon National University, Sunchon, Chonnam, Republic of Korea
| | - Ky Young Park
- Department of Biology, Sunchon National University, Sunchon, Chonnam, Republic of Korea.
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Zhou ZQ, Fan HX, He RR, Xiao J, Tsoi B, Lan KH, Kurihara H, So KF, Yao XS, Gao H. Lycibarbarspermidines A-O, New Dicaffeoylspermidine Derivatives from Wolfberry, with Activities against Alzheimer's Disease and Oxidation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2223-2237. [PMID: 26953624 DOI: 10.1021/acs.jafc.5b05274] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fifteen new dicaffeoylspermidine derivatives, lycibarbarspermidines A-O (1-15), were isolated from the fruit of Lycium barbarum (wolfberry). The structures were unambiguously determined by spectroscopic analyses and chemical methods. Dicaffeoylspermidine derivatives, a rare kind of plant secondary metabolites, are primarily distributed in the family of Solanaceae. Only six compounds were structurally identified, and all of them are acyclic aglycones. Compounds 1-15 are the first glycosidic products of dicaffeoylspermidine derivatives, and compounds 14-15 are the first cyclization products of dicaffeoylspermidine derivatives. Moreover, dicaffeoylspermidine derivatives were first isolated and identified from wolfberry. The short-term memory assay on a transgenic fly Alzheimer's disease (AD) model showed that 1-15 exhibited different levels of anti-AD activity. The oxygen radical absorbance capacity assay revealed that 1-15 all displayed antioxidant capacity. Both anti-AD and antioxidant functions are related to the effects of wolfberry. Therefore, dicaffeoylspermidine derivatives are considered beneficial constituents responsible for the antiaging, neuroprotective, anti-AD, and antioxidant effects of wolfberry.
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Affiliation(s)
- Zheng-Qun Zhou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Hong-Xia Fan
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Rong-Rong He
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Jia Xiao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Bun Tsoi
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Kang-Hua Lan
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Hiroshi Kurihara
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Kwok-Fai So
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, ‡Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, and §Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University , Guangzhou 510632, PR China
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Heuberger AL, Robison FM, Lyons SMA, Broeckling CD, Prenni JE. Evaluating plant immunity using mass spectrometry-based metabolomics workflows. FRONTIERS IN PLANT SCIENCE 2014; 5:291. [PMID: 25009545 PMCID: PMC4068199 DOI: 10.3389/fpls.2014.00291] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 06/04/2014] [Indexed: 05/02/2023]
Abstract
Metabolic processes in plants are key components of physiological and biochemical disease resistance. Metabolomics, the analysis of a broad range of small molecule compounds in a biological system, has been used to provide a systems-wide overview of plant metabolism associated with defense responses. Plant immunity has been examined using multiple metabolomics workflows that vary in methods of detection, annotation, and interpretation, and the choice of workflow can significantly impact the conclusions inferred from a metabolomics investigation. The broad range of metabolites involved in plant defense often requires multiple chemical detection platforms and implementation of a non-targeted approach. A review of the current literature reveals a wide range of workflows that are currently used in plant metabolomics, and new methods for analyzing and reporting mass spectrometry (MS) data can improve the ability to translate investigative findings among different plant-pathogen systems.
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Affiliation(s)
- Adam L. Heuberger
- Proteomics and Metabolomics Facility, Colorado State UniversityFort Collins, CO, USA
- Department of Soil and Crop Sciences, Colorado State UniversityFort Collins, CO, USA
- *Correspondence: Adam L. Heuberger, Proteomics and Metabolomics Facility, Colorado State University, 2021 Campus Delivery, Fort Collins, CO 80525, USA e-mail:
| | - Faith M. Robison
- Proteomics and Metabolomics Facility, Colorado State UniversityFort Collins, CO, USA
- Department of Soil and Crop Sciences, Colorado State UniversityFort Collins, CO, USA
| | - Sarah Marie A. Lyons
- Proteomics and Metabolomics Facility, Colorado State UniversityFort Collins, CO, USA
| | - Corey D. Broeckling
- Proteomics and Metabolomics Facility, Colorado State UniversityFort Collins, CO, USA
- Department of Horticulture and Landscape Architecture, Colorado State UniversityFort Collins, CO, USA
| | - Jessica E. Prenni
- Proteomics and Metabolomics Facility, Colorado State UniversityFort Collins, CO, USA
- Department of Biochemistry and Molecular Biology, Colorado State UniversityFort Collins, CO, USA
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