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Wang XY, Zhu NN, Yang JS, Zhou D, Yuan ST, Pan XJ, Jiang CX, Wu ZG. CwJAZ4/9 negatively regulates jasmonate-mediated biosynthesis of terpenoids through interacting with CwMYC2 and confers salt tolerance in Curcuma wenyujin. PLANT, CELL & ENVIRONMENT 2024; 47:3090-3110. [PMID: 38679901 DOI: 10.1111/pce.14930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 03/22/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
Plant JASMONATE ZIM-DOMAIN (JAZ) genes play crucial roles in regulating the biosynthesis of specialized metabolites and stressful responses. However, understanding of JAZs controlling these biological processes lags due to numerous JAZ copies. Here, we found that two leaf-specific CwJAZ4/9 genes from Curcuma wenyujin are strongly induced by methyl-jasmonate (MeJA) and negatively correlated with terpenoid biosynthesis. Yeast two-hybrid, luciferase complementation imaging and in vitro pull-down assays confirmed that CwJAZ4/9 proteins interact with CwMYC2 to form the CwJAZ4/9-CwMYC2 regulatory cascade. Furthermore, transgenic hairy roots showed that CwJAZ4/9 acts as repressors of MeJA-induced terpenoid biosynthesis by inhibiting the terpenoid pathway and jasmonate response, thus reducing terpenoid accumulation. In addition, we revealed that CwJAZ4/9 decreases salt sensitivity and sustains the growth of hairy roots under salt stress by suppressing the salt-mediated jasmonate responses. Transcriptome analysis for MeJA-mediated transgenic hairy root lines further confirmed that CwJAZ4/9 negatively regulates the terpenoid pathway genes and massively alters the expression of genes related to salt stress signaling and responses, and crosstalks of multiple phytohormones. Altogether, our results establish a genetic framework to understand how CwJAZ4/9 inhibits terpenoid biosynthesis and confers salt tolerance, which provides a potential strategy for producing high-value pharmaceutical terpenoids and improving resistant C. wenyujin varieties by a genetic approach.
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Affiliation(s)
- Xin-Yi Wang
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Ning-Ning Zhu
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jia-Shun Yang
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Dan Zhou
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Shu-Ton Yuan
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xiao-Jun Pan
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
| | - Cheng-Xi Jiang
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Zhi-Gang Wu
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
- School of Chinese Medicine, Wenzhou Medical University, Wenzhou, China
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2
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Prudhomme N, Pastora R, Thomson S, Zheng E, Sproule A, Krieger JR, Murphy JP, Overy DP, Cossar D, McLean MD, Geddes‐McAlister J. Bacterial growth-mediated systems remodelling of Nicotiana benthamiana defines unique signatures of target protein production in molecular pharming. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:2248-2266. [PMID: 38516995 PMCID: PMC11258984 DOI: 10.1111/pbi.14342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/23/2024]
Abstract
The need for therapeutics to treat a plethora of medical conditions and diseases is on the rise and the demand for alternative approaches to mammalian-based production systems is increasing. Plant-based strategies provide a safe and effective alternative to produce biological drugs but have yet to enter mainstream manufacturing at a competitive level. Limitations associated with batch consistency and target protein production levels are present; however, strategies to overcome these challenges are underway. In this study, we apply state-of-the-art mass spectrometry-based proteomics to define proteome remodelling of the plant following agroinfiltration with bacteria grown under shake flask or bioreactor conditions. We observed distinct signatures of bacterial protein production corresponding to the different growth conditions that directly influence the plant defence responses and target protein production on a temporal axis. Our integration of proteomic profiling with small molecule detection and quantification reveals the fluctuation of secondary metabolite production over time to provide new insight into the complexities of dual system modulation in molecular pharming. Our findings suggest that bioreactor bacterial growth may promote evasion of early plant defence responses towards Agrobacterium tumefaciens (updated nomenclature to Rhizobium radiobacter). Furthermore, we uncover and explore specific targets for genetic manipulation to suppress host defences and increase recombinant protein production in molecular pharming.
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Affiliation(s)
- Nicholas Prudhomme
- Department of Molecular and Cellular BiologyUniversity of GuelphGuelphONCanada
| | | | - Sarah Thomson
- Department of Molecular and Cellular BiologyUniversity of GuelphGuelphONCanada
| | - Edison Zheng
- Department of Molecular and Cellular BiologyUniversity of GuelphGuelphONCanada
| | - Amanda Sproule
- Ottawa Research and Development CentreAgriculture and Agri‐Food CanadaOttawaONCanada
| | | | - J. Patrick Murphy
- Department of BiologyUniversity of Prince Edward IslandCharlottetownPECanada
| | - David P. Overy
- Ottawa Research and Development CentreAgriculture and Agri‐Food CanadaOttawaONCanada
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3
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Shao Z, Chen CY, Qiao H. How chromatin senses plant hormones. CURRENT OPINION IN PLANT BIOLOGY 2024; 81:102592. [PMID: 38941723 DOI: 10.1016/j.pbi.2024.102592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/30/2024]
Abstract
Plant hormones activate receptors, initiating intracellular signaling pathways. Eventually, hormone-specific transcription factors become active in the nucleus, facilitating hormone-induced transcriptional regulation. Chromatin plays a fundamental role in the regulation of transcription, the process by which genetic information encoded in DNA is converted into RNA. The structure of chromatin, a complex of DNA and proteins, directly influences the accessibility of genes to the transcriptional machinery. The different signaling pathways and transcription factors involved in the transmission of information from the receptors to the nucleus have been readily explored, but not so much for the specific mechanisms employed by the cell to ultimately instruct the chromatin changes necessary for a fast and robust transcription activation, specifically for plant hormone responses. In this review, we will focus on the advancements in understanding how chromatin receives plant hormones, facilitating the changes necessary for fast, robust, and specific transcriptional regulation.
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Affiliation(s)
- Zhengyao Shao
- Institute for Cellular and Molecular Biology, The University of Texas, Austin, TX, 78712, USA; Department of Molecular Biosciences, The University of Texas, Austin, TX, 78712, USA
| | - Chia-Yang Chen
- Institute for Cellular and Molecular Biology, The University of Texas, Austin, TX, 78712, USA; Department of Molecular Biosciences, The University of Texas, Austin, TX, 78712, USA
| | - Hong Qiao
- Institute for Cellular and Molecular Biology, The University of Texas, Austin, TX, 78712, USA; Department of Molecular Biosciences, The University of Texas, Austin, TX, 78712, USA.
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4
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Song Z, Wang R, Zhang H, Tong Z, Yuan C, Li Y, Huang C, Zhao L, Wang Y, Di Y, Sui X. Comparative transcriptome analysis reveals nicotine metabolism is a critical component for enhancing stress response intensity of innate immunity system in tobacco. FRONTIERS IN PLANT SCIENCE 2024; 15:1338169. [PMID: 38595766 PMCID: PMC11003474 DOI: 10.3389/fpls.2024.1338169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/05/2024] [Indexed: 04/11/2024]
Abstract
The pyridine alkaloid nicotine acts as one of best-studied plant resistant traits in tobacco. Previous research has shown that NtERF199 and NtERF189, acting as master regulators within the NIC1 and NIC2 locus, quantitatively contribute to nicotine accumulation levels in N. tabacum. Genome editing-created Nic1(Nterf199) and Nic2 (Nterf189) double mutant provides an ideal platform for precisely dissecting the defensive role of nicotine and the connection between the nicotine biosynthetic pathway with other putative metabolic networks. Taking this advantage, we performed a comparative transcriptomic analysis to reevaluate the potential physiological and metabolic changes in response to nicotine synthesis defect by comparing the nic1nic2 and NIC1NIC2 plants. Our findings revealed that nicotine reduction could systematically diminishes the expression intensities of genes associated with stimulus perception, signal transduction and regulation, as well as secondary metabolic flux. Consequently, this global expression reduction might compromise tobacco adaptions to environmental fitness, herbivore resistances, and plant growth and development. The up-regulation of a novel set of stress-responsive and metabolic pathway genes might signify a newly established metabolic reprogramming to tradeoff the detrimental effect of nicotine loss. These results offer additional compelling evidence regarding nicotine's critical defensive role in nature and highlights the tight link between nicotine biosynthesis and gene expression levels of quantitative resistance-related genes for better environmental adaptation.
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Affiliation(s)
- Zhongbang Song
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Ruixue Wang
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
- College of Resources and Environmental Science, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Hongbo Zhang
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China
| | - Zhijun Tong
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Cheng Yuan
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Yong Li
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Changjun Huang
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Lu Zhao
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Yingtong Di
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xueyi Sui
- National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, China
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5
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Lian C, Zhang F, Yang H, Zhang X, Lan J, Zhang B, Liu X, Yang J, Chen S. Multi-omics analysis of small RNA, transcriptome, and degradome to identify putative miRNAs linked to MeJA regulated and oridonin biosynthesis in Isodon rubescens. Int J Biol Macromol 2024; 258:129123. [PMID: 38163496 DOI: 10.1016/j.ijbiomac.2023.129123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Isodon rubescens has garnered much attention due to its anti-tumor or anti-cancer properties. However, little is known about the molecular mechanism of oridonin biosynthesis leveraging the regulatory network between small RNAs and mRNAs. In this study, the regulatory networks of miRNAs and targets were examined by combining mRNA, miRNA, and degradome. A total of 348 miRNAs, including 287 known miRNAs and 61 novel miRNAs, were identified. Among them, 51 miRNAs were significantly expressed, and 36 miRNAs responded to MeJA. A total of 3066 target genes were associated with 228 miRNAs via degradome sequencing. Multi-omics analysis demonstrated that 27 miRNA-mRNA pairs were speculated to be involved in MeJA regulation, and 36 miRNA-mRNA pairs were hypothesized to be involved in the genotype-dependence of I. rubescens. Furthermore, 151 and 7 miRNA-mRNA modules were likely engaged in oridonin biosynthesis as identified by psRNATarget and degradome sequencing, respectively. Some miRNA-mRNA modules were confirmed via RT-qPCR. Moreover, miRNAs targeting plant hormone signal transduction pathway genes were identified, such as miR156, miR167, miR393, and PC-3p-19822_242. Collectively, our results demonstrate for the first time that miRNAs are identified in I. rubescens, and laid a solid foundation for further research on the molecular mechanism of oridonin biosynthesis mediated by miRNA.
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Affiliation(s)
- Conglong Lian
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Fei Zhang
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Hao Yang
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Xueyu Zhang
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Jinxu Lan
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Bao Zhang
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Xiuyu Liu
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Jingfan Yang
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China
| | - Suiqing Chen
- School of Pharmacy, Henan University of Chinese Medicine, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China; Henan Key Laboratory of Chinese Medicine Resources and Chemistry, 156 Esat Jin-shui Rd, Zhengzhou 450046, PR China.
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6
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Wang L, Chen H, Chen G, Luo G, Shen X, Ouyang B, Bie Z. Transcription factor SlWRKY50 enhances cold tolerance in tomato by activating the jasmonic acid signaling. PLANT PHYSIOLOGY 2024; 194:1075-1090. [PMID: 37935624 DOI: 10.1093/plphys/kiad578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/26/2023] [Accepted: 10/02/2023] [Indexed: 11/09/2023]
Abstract
Tomato (Solanum lycopersicum) is a cold-sensitive crop but frequently experiences low-temperature stimuli. However, tomato responses to cold stress are still poorly understood. Our previous studies have shown that using wild tomato (Solanum habrochaites) as rootstock can significantly enhance the cold resistance of grafted seedlings, in which a high concentration of jasmonic acids (JAs) in scions exerts an important role, but the mechanism of JA accumulation remains unclear. Herein, we discovered that tomato SlWRKY50, a Group II WRKY transcription factor that is cold inducible, responds to cold stimuli and plays a key role in JA biosynthesis. SlWRKY50 directly bound to the promoter of tomato allene oxide synthase gene (SlAOS), and overexpressing SlWRKY50 improved tomato chilling resistance, which led to higher levels of Fv/Fm, antioxidative enzymes, SlAOS expression, and JA accumulation. SlWRKY50-silenced plants, however, exhibited an opposite trend. Moreover, diethyldithiocarbamate acid (a JA biosynthesis inhibitor) foliar treatment drastically reduced the cold tolerance of SlWRKY50-overexpression plants to wild-type levels. Importantly, SlMYC2, the key regulator of the JA signaling pathway, can control SlWRKY50 expression. Overall, our research indicates that SlWRKY50 promotes cold tolerance by controlling JA biosynthesis and that JA signaling mediates SlWRKY50 expression via transcriptional activation by SlMYC2. Thus, this contributes to the genetic knowledge necessary for developing cold-resistant tomato varieties.
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Affiliation(s)
- Lihui Wang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Hui Chen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Guoyu Chen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Guangbao Luo
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Xinyan Shen
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Bo Ouyang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Zhilong Bie
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, P.R. China
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7
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Kadam SB, Barvkar VT. COI1 dependent jasmonic acid signalling positively modulates ROS scavenging system in transgenic hairy root culture of tomato. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108229. [PMID: 38039582 DOI: 10.1016/j.plaphy.2023.108229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
Reactive oxygen species (ROS) production is a routine event in plants. ROS function as signalling molecules in regulating plant development and defence. However, their accumulation beyond threshold leads to toxicity. Hence, plants are evolved with specialized ROS scavenging system involving phytohormones (synthesis and signalling), enzymes and metabolites. To understand the role of phytohormone jasmonic acid (JA) signalling in ROS scavenging, tomato coronatine insensitive 1 (SlCOI1), a key gene in JA signalling, was silenced and overexpressed in tomato transgenic hairy roots (HR) under the constitutive promoter. Targeted metabolomics of transgenic HR revealed accumulation of phenolic acids including ferulic acid, coumaric acid, vanillic acid, and flavonoid catechin in SlCOI1 overexpressed line. Moreover, osmolyte amino acids proline, asparagine, and glutamine showed a positive co-relation with transgenic overexpression of SlCOI1. Ascorbic acid-glutathione, a crucial antioxidant system was found to be influenced by COI1-mediated JA signalling. The expression of genes encoding enzymes superoxide dismutase 1, ascorbate peroxidase 1, and dehydroascorbate reductase 2 was found to be down and upregulated in SlCOI1 silenced and overexpressed lines, respectively. Methyl jasmonate and Fusarium oxysporum f.sp. lycopersici crude extract treatment further confirmed the regulatory role of COI1-mediated JA signalling in regulation of enzymatic components involved in ROS scavenging. The COI1-mediated JA signalling could also elevate the expression of RESPIRATORY BURST OXIDASE HOMOLOG-B gene which is involved in ROS wave signal generation. The present study underscores the role of COI1-mediated JA signalling in modulating enzymatic and non-enzymatic components of ROS scavenging system and pathogen associated molecular pattern triggered immunity.
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Affiliation(s)
- Swapnil B Kadam
- Department of Botany, Savitribai Phule Pune University, Pune, 411007, India
| | - Vitthal T Barvkar
- Department of Botany, Savitribai Phule Pune University, Pune, 411007, India.
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Huang P, Tate M, Berg‐Falloure KM, Christensen SA, Zhang J, Schirawski J, Meeley R, Kolomiets MV. A non-JA producing oxophytodienoate reductase functions in salicylic acid-mediated antagonism with jasmonic acid during pathogen attack. MOLECULAR PLANT PATHOLOGY 2023; 24:725-741. [PMID: 36715587 PMCID: PMC10257049 DOI: 10.1111/mpp.13299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 06/11/2023]
Abstract
Peroxisome-localized oxo-phytodienoic acid (OPDA) reductases (OPR) are enzymes converting 12-OPDA into jasmonic acid (JA). However, the biochemical and physiological functions of the cytoplasmic non-JA producing OPRs remain largely unknown. Here, we generated Mutator-insertional mutants of the maize OPR2 gene and tested its role in resistance to pathogens with distinct lifestyles. Functional analyses showed that the opr2 mutants were more susceptible to the (hemi)biotrophic pathogens Colletotrichum graminicola and Ustilago maydis, but were more resistant to the necrotrophic fungus Cochliobolus heterostrophus. Hormone profiling revealed that increased susceptibility to C. graminicola was associated with decreased salicylic acid (SA) but increased JA levels. Mutation of the JA-producing lipoxygenase 10 (LOX10) reversed this phenotype in the opr2 mutant background, corroborating the notion that JA promotes susceptibility to this pathogen. Exogenous SA did not rescue normal resistance levels in opr2 mutants, suggesting that this SA-inducible gene is the key downstream component of the SA-mediated defences against C. graminicola. Disease assays of the single and double opr2 and lox10 mutants and the JA-deficient opr7opr8 mutants showed that OPR2 negatively regulates JA biosynthesis, and that JA is required for resistance against C. heterostrophus. Overall, this study uncovers a novel function of a non-JA producing OPR as a major negative regulator of JA biosynthesis during pathogen infection, a function that leads to its contrasting contribution to either resistance or susceptibility depending on pathogen lifestyle.
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Affiliation(s)
- Pei‐Cheng Huang
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTexasUSA
| | - Morgan Tate
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTexasUSA
| | | | - Shawn A. Christensen
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTexasUSA
- Present address:
Nutrition, Dietetics, and Food ScienceBrigham Young UniversityProvoUtahUSA
| | - Jinglan Zhang
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTexasUSA
- Present address:
Obstetrics and Gynecology HospitalInstitute of Reproduction and Development, Fudan UniversityShanghaiChina
| | - Jan Schirawski
- Matthias‐Schleiden Institute/Genetics, Faculty of Biological SciencesFriedrich‐Schiller UniversityJenaGermany
| | | | - Michael V. Kolomiets
- Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTexasUSA
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9
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Degtyaryov E, Pigolev A, Miroshnichenko D, Frolov A, Basnet AT, Gorbach D, Leonova T, Pushin AS, Alekseeva V, Dolgov S, Savchenko T. 12-Oxophytodienoate Reductase Overexpression Compromises Tolerance to Botrytis cinerea in Hexaploid and Tetraploid Wheat. PLANTS (BASEL, SWITZERLAND) 2023; 12:2050. [PMID: 37653967 PMCID: PMC10222670 DOI: 10.3390/plants12102050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/11/2023] [Accepted: 05/17/2023] [Indexed: 09/02/2023]
Abstract
12-Oxophytodienoate reductase is the enzyme involved in the biosynthesis of phytohormone jasmonates, which are considered to be the major regulators of plant tolerance to biotic challenges, especially necrotrophic pathogens. However, we observe compromised tolerance to the necrotrophic fungal pathogen Botrytis cinerea in transgenic hexaploid bread wheat and tetraploid emmer wheat plants overexpressing 12-OXOPHYTODIENOATE REDUCTASE-3 gene from Arabidopsis thaliana, while in Arabidopsis plants themselves, endogenously produced and exogenously applied jasmonates exert a strong protective effect against B. cinerea. Exogenous application of methyl jasmonate on hexaploid and tetraploid wheat leaves suppresses tolerance to B. cinerea and induces the formation of chlorotic damages. Exogenous treatment with methyl jasmonate in concentrations of 100 µM and higher causes leaf yellowing even in the absence of the pathogen, in agreement with findings on the role of jasmonates in the regulation of leaf senescence. Thereby, the present study demonstrates the negative role of the jasmonate system in hexaploid and tetraploid wheat tolerance to B. cinerea and reveals previously unknown jasmonate-mediated responses.
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Affiliation(s)
- Evgeny Degtyaryov
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.D.); (A.P.); (D.M.)
| | - Alexey Pigolev
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.D.); (A.P.); (D.M.)
| | - Dmitry Miroshnichenko
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.D.); (A.P.); (D.M.)
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.S.P.); (V.A.); (S.D.)
| | - Andrej Frolov
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (A.F.); (A.T.B.); (D.G.); (T.L.)
- Laboratory of Analytical Biochemistry and Biotechnology, Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, 127276 Moscow, Russia
| | - Adi Ti Basnet
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (A.F.); (A.T.B.); (D.G.); (T.L.)
| | - Daria Gorbach
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (A.F.); (A.T.B.); (D.G.); (T.L.)
| | - Tatiana Leonova
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, 06120 Halle (Saale), Germany; (A.F.); (A.T.B.); (D.G.); (T.L.)
| | - Alexander S. Pushin
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.S.P.); (V.A.); (S.D.)
| | - Valeriya Alekseeva
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.S.P.); (V.A.); (S.D.)
| | - Sergey Dolgov
- Branch of Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142290 Pushchino, Russia; (A.S.P.); (V.A.); (S.D.)
| | - Tatyana Savchenko
- Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.D.); (A.P.); (D.M.)
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10
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Zhang B, Zheng H, Wu H, Wang C, Liang Z. Recent genome-wide replication promoted expansion and functional differentiation of the JAZs in soybeans. Int J Biol Macromol 2023; 238:124064. [PMID: 36933593 DOI: 10.1016/j.ijbiomac.2023.124064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
Jasmonate Zim-domain (JAZ) protein is an inhibitor of the jasmonate (JA) signal transduction pathway, and plays an important role in regulating plant growth, development, and defense. However, there have been few studies on its function under environmental stress in soybeans. In this study, a total of 275 JAZs protein-coding genes were identified in 29 soybean genomes. SoyC13 contained the least JAZ family members (26 JAZs), which was twice as high as AtJAZs. The genes are mainly generated by recent genome-wide replication (WGD), which replicated during the Late Cenozoic Ice Age. In addition, transcriptome analysis showed that the differences in gene expression patterns in the roots, stems, and leaves of the 29 cultivars at the V1 stage were not significant, but there was a significant difference among the three seed development stages. Finally, qRT-PCR results showed that GmJAZs responded the most strongly to heat stress, followed by drought and cold stress. This is consistent with the reason for their expansion and promoter analysis results. Therefore, we explored the significant role of conserved, duplicated, and neofunctionalized JAZs in the evolution of soybeans, which will contribute to the functional characterization of GmJAZ and the improvement of crops.
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Affiliation(s)
- Bingxue Zhang
- The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi 712100, China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Zheng
- Zhejiang Province Key Laboratory of Plant Secondary Metablism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Haihang Wu
- Zhejiang Province Key Laboratory of Plant Secondary Metablism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chunli Wang
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Zongsuo Liang
- The Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences and Ministry of Education, Yangling, Shaanxi 712100, China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhejiang Province Key Laboratory of Plant Secondary Metablism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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11
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Jian Y, Feng S, Huang A, Zhu Z, Zhang J, Tang S, Jin L, Ren M, Dong P. Integrative mRNA and microRNA Analysis Exploring the Inducing Effect and Mechanism of Diallyl Trisulfide (DATS) on Potato against Late Blight. Int J Mol Sci 2023; 24:ijms24043474. [PMID: 36834885 PMCID: PMC9962630 DOI: 10.3390/ijms24043474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
Potato late blight, caused by Phytophthora infestans, leads to a significant reduction in the yield and value of potato. Biocontrol displays great potential in the suppression of plant diseases. Diallyl trisulfide (DATS) is a well-known natural compound for biocontrol, although there is little information about it against potato late blight. In this study, DATS was found to be able to inhibit the hyphae growth of P. infestans, reduce its pathogenicity on detached potato leaves and tubers, and induce the overall resistance of potato tubers. DATS significantly increases catalase (CAT) activity of potato tubers, and it does not affect the levels of peroxidase (POD), superoxide dismutase (SOD), and malondialdehyde (MDA). The transcriptome datasets show that totals of 607 and 60 significantly differentially expressed genes (DEGs) and miRNAs (DEMs) are detected. Twenty-one negatively regulated miRNA-mRNA interaction pairs are observed in the co-expression regulatory network, which are mainly enriched in metabolic pathways, biosynthesis of secondary metabolites, and starch and sucrose metabolism based on the KEGG pathway. Our observations provide new insight into the role of DATS in biocontrol of potato late blight.
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Affiliation(s)
- Yongfei Jian
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
| | - Shun Feng
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
- Sanya Nanfan Research Institute, School of Horticulture, Hainan University, Haikou 570228, China
| | - Airong Huang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
| | - Zhiming Zhu
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
- Hongshen Honors School, Chongqing University, Chongqing 401331, China
| | - Jiaomei Zhang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
| | - Shicai Tang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
| | - Liang Jin
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Maozhi Ren
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
- Correspondence: (M.R.); (P.D.)
| | - Pan Dong
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
- Correspondence: (M.R.); (P.D.)
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12
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Yuan M, Shu G, Zhou J, He P, Xiang L, Yang C, Chen M, Liao Z, Zhang F. AabHLH113 integrates jasmonic acid and abscisic acid signaling to positively regulate artemisinin biosynthesis in Artemisia annua. THE NEW PHYTOLOGIST 2023; 237:885-899. [PMID: 36271612 DOI: 10.1111/nph.18567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Artemisinin, a sesquiterpene lactone isolated from Artemisia annua, is in huge market demand due to its efficient antimalarial action, especially after the COVID-19 pandemic. Many researchers have elucidated that phytohormones jasmonic acid (JA) and abscisic acid (ABA) positively regulate artemisinin biosynthesis via types of transcription factors (TFs). However, the crosstalk between JA and ABA in regulating artemisinin biosynthesis remains unclear. Here, we identified a novel ABA- and JA-induced bHLH TF, AabHLH113, which positively regulated artemisinin biosynthesis by directly binding to the promoters of artemisinin biosynthetic genes, DBR2 and ALDH1. The contents of artemisinin and dihydroartemisinic acid increased by 1.71- to 2.06-fold and 1.47- to 2.23-fold, respectively, in AabHLH1113 overexpressed A. annua, whereas they decreased by 14-36% and 26-53%, respectively, in RNAi-AabHLH113 plants. Furthermore, we demonstrated that AabZIP1 and AabHLH112, which, respectively, participate in ABA and JA signaling pathway to regulate artemisinin biosynthesis, directly bind to and activate the promoter of AabHLH113. Collectively, we revealed a complex network in which AabHLH113 plays a key interrelational role to integrate ABA- and JA-mediated regulation of artemisinin biosynthesis.
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Affiliation(s)
- Mingyuan Yuan
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Guoping Shu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Jiaheng Zhou
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Ping He
- Chongqing Academy of Science and Technology, Chongqing, 401123, China
| | - Lien Xiang
- College of Environmental Science and Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Chunxian Yang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Ming Chen
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Zhihua Liao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
- Chongqing Academy of Science and Technology, Chongqing, 401123, China
| | - Fangyuan Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, China
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13
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Hu S, Yu K, Yan J, Shan X, Xie D. Jasmonate perception: Ligand-receptor interaction, regulation, and evolution. MOLECULAR PLANT 2023; 16:23-42. [PMID: 36056561 DOI: 10.1016/j.molp.2022.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/10/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Phytohormones integrate external environmental and developmental signals with internal cellular responses for plant survival and multiplication in changing surroundings. Jasmonate (JA), which might originate from prokaryotes and benefit plant terrestrial adaptation, is a vital phytohormone that regulates diverse developmental processes and defense responses against various environmental stresses. In this review, we first provide an overview of ligand-receptor binding techniques used for the characterization of phytohormone-receptor interactions, then introduce the identification of the receptor COI1 and active JA molecules, and finally summarize recent advances on the regulation of JA perception and its evolution.
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Affiliation(s)
- Shuai Hu
- MOE Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Kaiming Yu
- Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jianbin Yan
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518124, China; Kunpeng Institute of Modern Agriculture at Foshan, Chinese Academy of Agricultural Sciences, Foshan 528200, China.
| | - Xiaoyi Shan
- MOE Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Daoxin Xie
- MOE Laboratory of Bioinformatics, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China; Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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14
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Sofi KG, Metzger C, Riemann M, Nick P. Chitosan triggers actin remodelling and activation of defence genes that is repressed by calcium influx in grapevine cells. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 326:111527. [PMID: 36334621 DOI: 10.1016/j.plantsci.2022.111527] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Defence to pathogens must be specific. In the past, we have dissected early signalling deployed by bacterial elicitors in a grapevine cell system. In the current work, we asked, how defence of fungi differs. Fungal diseases of grapevine pose great challenges for global viticulture and require massive plant protection measures. Plant cells are able to sense chitin, a central component of fungal cell walls and respond by activation of basal defence. We, therefore mapped early defence responses evoked by chitosan, a chitin fragment able to bind to chitin receptors. We found an activation of calcium influx, monitored by extracellular alkalinisation due to a co-transport of protons, remodelling of actin (but not of microtubules), and the activation of transcripts for phytoalexin synthesis, jasmonate-signalling, salicylate signalling, and chitinase. Interestingly, Gadolinium, an inhibitor of calcium influx, can inhibit extracellular alkalinisation in response to chitosan, while the induction of the phytoalexin synthesis transcripts was specifically promoted. In contrast, both DMSO and benzyl alcohol, compounds known to modulate membrane fluidity, partially inhibited the transcript responses to chitosan. We discuss these data with a model, where chitosan deploys signalling culminating in activation of defence related transcripts, but at the same time activates calcium influx that negatively feeds back on the same signal chain, which might be a mechanism to achieve a temporal signature that is rapid, but transient.
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Affiliation(s)
- Karwan Gafoor Sofi
- Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, Karlsruhe D-76131, Germany.
| | - Christian Metzger
- Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, Karlsruhe D-76131, Germany.
| | - Michael Riemann
- Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, Karlsruhe D-76131, Germany.
| | - Peter Nick
- Molecular Cell Biology, Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, Karlsruhe D-76131, Germany.
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15
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Yang T, Tian M, Gao T, Wang C, Wang X, Chen C, Yang W. Genome-wide transcriptomic analysis identifies candidate genes involved in jasmonic acid-mediated salt tolerance of alfalfa. PeerJ 2023; 11:e15324. [PMID: 37168537 PMCID: PMC10166079 DOI: 10.7717/peerj.15324] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
Soil salinity imposes a major threat to plant growth and agricultural productivity. Despite being one of the most common fodder crops in saline locations, alfalfa is vulnerable to salt stress. Jasmonic acid (JA) is a phytohormone that influences plant response to abiotic stimuli such as salt stress. However, key genes and pathways by which JA-mediated salt tolerance of alfalfa are little known. A comprehensive transcriptome analysis was performed to elucidate the underlying molecular mechanisms of JA-mediated salt tolerance. The transcripts regulated by salt (S) compared to control (C) and JA+salt (JS) compared to C were investigated. Venn diagram and expression pattern of DEGs indicated that JS further altered a series of genes expression regulated by salt treatment, implying the roles of JA in priming salt tolerance. Enrichment analysis revealed that DEGs exclusively regulated by JS treatment belonged to primary or secondary metabolism, respiratory electron transport chain, and oxidative stress resistance. Alternatively, splicing (AS) was induced by salt alone or JA combined treatment, with skipped exon (SE) events predominately. DEGs undergo exon skipping involving some enriched items mentioned above and transcription factors. Finally, the gene expressions were validated using quantitative polymerase chain reaction (qPCR), which produced results that agreed with the sequencing results. Taken together, these findings suggest that JA modulates the expression of genes related to energy supply and antioxidant capacity at both the transcriptional and post-transcriptional levels, possibly through the involvement of transcription factors and AS events.
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Affiliation(s)
- Tianhui Yang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
| | - Mei Tian
- Institute of Horticultural Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
| | - Ting Gao
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
| | - Chuan Wang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
| | - Xiaochun Wang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
| | - Caijin Chen
- Branch Institute of Guyuan, Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia, China
| | - Weidi Yang
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia, China
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16
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Natale R, Coppola M, D'Agostino N, Zhang Y, Fernie AR, Castaldi V, Rao R. In silico and in vitro approaches allow the identification of the Prosystemin molecular network. Comput Struct Biotechnol J 2022; 21:212-223. [PMID: 36544481 PMCID: PMC9755248 DOI: 10.1016/j.csbj.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
Tomato Prosystemin (ProSys), the precursor of Systemin, a small peptidic hormone, is produced at very low concentration in unchallenged plants, while its expression greatly increases in response to several different stressors triggering an array of defence responses. The molecular mechanisms that underpin such a wide array of defence barriers are not fully understood and are likely correlated with the intrinsically disordered (ID) structure of the protein. ID proteins interact with different protein partners forming complexes involved in the modulation of different biological mechanisms. Here we describe the ProSys-protein network that shed light on the molecular mechanisms underpinning ProSys associated defence responses. Three different approaches were used. In silico prediction resulted in 98 direct interactors, most clustering in phytohormone biosynthesis, transcription factors and signal transduction gene classes. The network shows the central role of ProSys during defence responses, that reflects its role as central hub. In vitro ProSys interactors, identified by Affinity Purification-Mass Spectrometry (AP-MS), revealed over three hundred protein partners, while Bimolecular Fluorescent Complementation (BiFC) experiments validated in vivo some interactors predicted in silico and in vitro. Our results demonstrate that ProSys interacts with several proteins and reveal new key molecular events in the ProSys-dependent defence response of tomato plant.
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Affiliation(s)
- Roberto Natale
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm 14476, Germany
| | - Mariangela Coppola
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy
| | - Nunzio D'Agostino
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy
| | - Youjun Zhang
- Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm 14476, Germany
| | - Alisdair Robert Fernie
- Center of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Potsdam-Golm 14476, Germany
| | - Valeria Castaldi
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy
| | - Rosa Rao
- Department of Agricultural Sciences, University of Naples Federico II, Portici 80055, Italy
- Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology (BAT Center), University of Naples Federico II, Portici 80055, Italy
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17
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Abstract
Jasmonates are phytohormones that regulate defense and developmental processes in land plants. Despite the chemical diversity of jasmonate ligands in different plant lineages, they are all perceived by COI1/JAZ co-receptor complexes, in which the hormone acts as a molecular glue between the COI1 F-box and a JAZ repressor. It has been shown that COI1 determines ligand specificity based on the receptor crystal structure and the identification of a single COI1 residue, which is responsible for the evolutionary switch in ligand binding. In this work, we show that JAZ proteins contribute to ligand specificity together with COI1. We propose that specific features of JAZ proteins, which are conserved in bryophytes and lycophytes, enable perception of dn-OPDA ligands regardless the size of the COI1 binding pocket. In vascular plant lineages beyond lycophytes, JAZ evolved to limit binding to JA-Ile, thus impeding dn-OPDA recognition by COI1.
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Ahmad Fauzi NS, Abd Rahim MH, Abdul Majid N, Othman R, Yaacob JS. Evaluation of the effect of jasmonic acid elicitation on composition of pigments and biological activities in green callus of neem (Azadirachta indica). FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.1017398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study was carried out with the aim of determining the effects of jasmonic acid (JA) elicitation on the bioactive pigments' biosynthesis and the antioxidant activities in green callus of Azadirachta indica of two different ages (4- and 8-week-old). Plant tissue culture technique was employed to induce the formation of green callus from leaf explants of A. indica on Murashige and Skoog (MS) medium supplemented with 0.6 mg/L thidiazuron (CM) and three different concentrations of JA (2, 4, and 6 mg/L). The methanolic extracts from the green callus were used for determination of total chlorophyll content (TCh), total carotenoid content (TC), total anthocyanin content (TAC), total phenolic content (TPC), and total flavonoid content (TFC) through colorimetric and HPLC analyses. The highest amount of yield was obtained from CM and 2 mg/L JA (2JA) extracts for 4- and 8-week-old samples, respectively. Phytochemical screening revealed the presence of alkaloids, flavonoids, phenols, tannins, and terpenoids in all 4- and 8-week-old samples elicited with 2, 4 and 6 mg/L JA. The highest value for TAC, TCh, TC, TPC, and TFC of 4- and 8-week-old samples were from callus cultured on media supplemented with 6 mg/L JA (6JA) and 4 mg/L JA (4JA), respectively. The lowest IC50 values were found to be 8.29 ± 0.10 mg/mL (6JA) for 4-week-old and 7.73 ± 0.03 mg/mL (4JA) for 8-week-old samples. The highest Ferric Reducing Antioxidant Power (FRAP) values obtained in this study were 90.60 ± 1.55 g/g (6JA), and 74.59 ± 3.91 g/g (4JA), respectively, for 4- and 8-week-old samples. Moreover, Pearson's correlation analysis revealed a significant correlation between TAC, TCh, TC, TPC, and TFC with ABTS and FRAP assays. In addition, PCA analysis revealed that 83.5% of the information (variances) contained in the data were retained by the first two principal components. Overall, these findings suggested that JA supplementation into the culture media significantly increase the chlorophyll, carotenoid, anthocyanin, phenolic and flavonoid contents and JA concentrations at 6 mg/L JA and 4 mg/L JA yielded the highest pigments content in 4- and 8-weeks-old callus, respectively.
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Iqbal S, Hayat F, Mushtaq N, Khalil-ur-Rehman M, Khan U, Yasoob TB, Khan MN, Ni Z, Ting S, Gao Z. Bioinformatics Study of Aux/IAA Family Genes and Their Expression in Response to Different Hormones Treatments during Japanese Apricot Fruit Development and Ripening. PLANTS 2022; 11:plants11151898. [PMID: 35893602 PMCID: PMC9332017 DOI: 10.3390/plants11151898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/18/2022]
Abstract
Auxin/indole-3-acetic acid (Aux/IAA) is a transcriptional repressor in the auxin signaling pathway that plays a role in several plant growth and development as well as fruit and embryo development. However, it is unclear what role they play in Japanese apricot (Prunus mume) fruit development and maturity. To investigate the role of Aux/IAA genes in fruit texture, development, and maturity, we comprehensively identified and expressed 19 PmIAA genes, and demonstrated their conserved domains and homology across species. The majority of PmIAA genes are highly responsive and expressed in different hormone treatments. PmIAA2, PmIAA5, PmIAA7, PmIAA10, PmIAA13, PmIAA18, and PmIAA19 showed a substantial increase in expression, suggesting that these genes are involved in fruit growth and maturity. During fruit maturation, alteration in the expression of PmIAA genes in response to 1-Methylcyclopropene (1-MCP) treatment revealed an interaction between auxin and ethylene. The current study investigated the response of Aux/IAA development regulators to auxin during fruit ripening, with the goal of better understanding their potential application in functional genomics.
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Affiliation(s)
- Shahid Iqbal
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (Z.N.); (S.T.)
- Correspondence: (S.I.); (Z.G.); Tel./Fax: +86-025-8439-5724 (S.I. & Z.G.)
| | - Faisal Hayat
- College of Horticulture, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Naveed Mushtaq
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (Z.N.); (S.T.)
| | - Muhammad Khalil-ur-Rehman
- Department of Horticultural Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Ummara Khan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
| | - Talat Bilal Yasoob
- Department of Animal Sciences, Ghazi University, Dera Ghazi Khan 32200, Pakistan;
| | | | - Zhaojun Ni
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (Z.N.); (S.T.)
| | - Shi Ting
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (Z.N.); (S.T.)
| | - Zhihong Gao
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.M.); (Z.N.); (S.T.)
- Correspondence: (S.I.); (Z.G.); Tel./Fax: +86-025-8439-5724 (S.I. & Z.G.)
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20
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Xu BQ, Wang JJ, Peng Y, Huang H, Sun LL, Yang R, Suo LN, Wang SH, Zhao WC. SlMYC2 mediates stomatal movement in response to drought stress by repressing SlCHS1 expression. FRONTIERS IN PLANT SCIENCE 2022; 13:952758. [PMID: 35937339 PMCID: PMC9354244 DOI: 10.3389/fpls.2022.952758] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/04/2022] [Indexed: 05/27/2023]
Abstract
Drought stress limits plant development and reproduction. Multiple mechanisms in plants are activated to respond to stress. The MYC2 transcription factor is a core regulator of the jasmonate (JA) pathway and plays a vital role in the crosstalk between abscisic acid (ABA) and JA. In this study, we found that SlMYC2 responded to drought stress and regulated stomatal aperture in tomato (Solanum lycopersicum). Overexpression of SlMYC2 repressed SlCHS1 expression and decreased the flavonol content, increased the reactive oxygen species (ROS) content in guard cells and promoted the accumulation of JA and ABA in leaves. Additionally, silencing the SlCHS1 gene produced a phenotype that was similar to that of the MYC2-overexpressing (MYC2-OE) strain, especially in terms of stomatal dynamics and ROS levels. Finally, we confirmed that SlMYC2 directly repressed the expression of SlCHS1. Our study revealed that SlMYC2 drove stomatal closure by modulating the accumulation of flavonol and the JA and ABA contents, helping us decipher the mechanism of stomatal movement under drought stress.
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Affiliation(s)
- Bing-Qin Xu
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Bei Jing Bei Nong Enterprise Management Co., Ltd., Beijing, China
| | - Jing-Jing Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Yi Peng
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Huang Huang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing University of Agriculture, Beijing, China
| | - Lu-Lu Sun
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing University of Agriculture, Beijing, China
| | - Rui Yang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing University of Agriculture, Beijing, China
| | - Lin-Na Suo
- Beijing Academy of Agricultural and Forestry Sciences, Beijing, China
| | - Shao-Hui Wang
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing University of Agriculture, Beijing, China
| | - Wen-Chao Zhao
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing University of Agriculture, Beijing, China
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Song S, Wang J, Yang X, Zhang X, Xin X, Liu C, Zou J, Cheng X, Zhang N, Hu Y, Wang J, Chen Q, Xin D. GsRSS3L, a Candidate Gene Underlying Soybean Resistance to Seedcoat Mottling Derived from Wild Soybean (Glycine soja Sieb. and Zucc). Int J Mol Sci 2022; 23:ijms23147577. [PMID: 35886929 PMCID: PMC9318458 DOI: 10.3390/ijms23147577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 12/27/2022] Open
Abstract
Soybeans are a major crop that produce the best vegetable oil and protein for use in food and beverage products worldwide. However, one of the most well-known viral infections affecting soybeans is the Soybean Mosaic Virus (SMV), a member of the Potyviridae family. A crucial method for preventing SMV damage is the breeding of resistant soybean cultivars. Adult resistance and resistance of seedcoat mottling are two types of resistance to SMV. Most studies have focused on adult-plant resistance but not on the resistance to seedcoat mottling. In this study, chromosome segment-substituted lines derived from a cross between Suinong14 (cultivated soybean) and ZYD00006 (wild soybean) were used to identify the chromosome region and candidate genes underlying soybean resistance to seed coat mottling. Herein, two quantitative trait loci (QTLs) were found on chromosome 17, and eighteen genes were found in the QTL region. RNA-seq was used to evaluate the differentially expressed genes (DEGs) among the eighteen genes located in the QTLs. According to the obtained data, variations were observed in the expression of five genes following SMV infection. Furthermore, Nicotiana benthamiana was subjected to an Agrobacterium-mediated transient expression assay to investigate the role of the five candidate genes in SMV resistance. It has also been revealed that Glyma.17g238900 encoding a RICE SALT SENSITIVE 3-like protein (RSS3L) can inhibit the multiplication of SMV in N.benthamiana. Moreover, two nonsynonymous single-nucleotide polymorphisms (SNPs) were found in the coding sequence of Glyma.17g238900 derived from the wild soybean ZYD00006 (GsRSS3L), and the two amino acid mutants may be associated with SMV resistance. Hence, it has been suggested that GsRSS3L confers seedcoat mottling resistance, shedding light on the mechanism of soybean resistance to SMV.
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22
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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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Ye L, Cao L, Zhao X, Guo X, Ye K, Jiao S, Wang Y, He X, Dong C, Hu B, Deng F, Zhao H, Zheng P, Aslam M, Qin Y, Cheng Y. Investigation of the JASMONATE ZIM-DOMAIN Gene Family Reveals the Canonical JA-Signaling Pathway in Pineapple. BIOLOGY 2022; 11:biology11030445. [PMID: 35336818 PMCID: PMC8945601 DOI: 10.3390/biology11030445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/21/2022] [Accepted: 03/09/2022] [Indexed: 11/16/2022]
Abstract
JASMONATE ZIM-DOMAIN (JAZ) proteins are negative regulators of the jasmonate (JA)-signaling pathway and play pivotal roles in plant resistance to biotic and abiotic stresses. Genome-wide identification of JAZ genes has been performed in many plant species. However, systematic information about pineapple (Ananas comosus L. Merr.) JAZ genes (AcJAZs) is still not available. In this study, we identified 14 AcJAZ genes and classified them into five groups along with the Arabidopsis and rice orthologs. The AcJAZ genes have 3–10 exons, and the putative AcJAZ proteins have between two and eight conserved regions, including the TIFY motif and Jas domain. The cis-acting element analysis revealed that the putative promoter regions of AcJAZs contain between three and eight abiotic stress-responsive cis-acting elements. The gene-expression analysis suggested that AcJAZs were expressed differentially during plant development and subjected to regulation by the cold, heat, salt, and osmotic stresses as well as by phytohormones. Moreover, the BiFC analysis of protein interactions among the central JA-signaling regulators showed that AcJAZ4, AcMYC2, AcNINJA, and AcJAM1 could interact with AcJAZ5 and AcJAZ13 in vivo, indicating a canonical JA-signaling pathway in pineapple. These results increase our understanding of the functions of AcJAZs and the responses of the core players in the JA-signaling pathway to abiotic stresses.
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Affiliation(s)
- Li Ye
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Ling Cao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Xuemei Zhao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Xinya Guo
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Kangzhuo Ye
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Sibo Jiao
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Yu Wang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaoxue He
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Chunxing Dong
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Bin Hu
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fang Deng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Heming Zhao
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ping Zheng
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
| | - Mohammad Aslam
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Yuan Qin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China
- Correspondence: (Y.Q.); (Y.C.)
| | - Yan Cheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.Y.); (L.C.); (X.Z.); (X.G.); (K.Y.); (F.D.)
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (S.J.); (Y.W.); (X.H.); (C.D.); (B.H.); (H.Z.); (P.Z.); (M.A.)
- Correspondence: (Y.Q.); (Y.C.)
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Yao D, Zhang Z, Chen Y, Lin Y, Xu X, Lai Z. Transcriptome Analysis Reveals Differentially Expressed Genes That Regulate Biosynthesis of the Active Compounds with Methyl Jasmonate in Rosemary Suspension Cells. Genes (Basel) 2021; 13:genes13010067. [PMID: 35052408 PMCID: PMC8775320 DOI: 10.3390/genes13010067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 12/15/2022] Open
Abstract
To study the effects of Methyl jasmonates (MeJA) on rosemary suspension cells, the antioxidant enzymes’ change of activities under different concentrations of MeJA, including 0 (CK), 10 (M10), 50 (M50) and 100 μM MeJA (M100). The results demonstrated that MeJA treatments increased the activities of phenylalanine ammonla-lyase (PAL), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and polyphenol oxidase (PPO) and reduced the contents of hydrogen peroxide (H2O2) and malondialdehyde (MDA), thus accelerating the ROS scavenging. Comparative transcriptome analysis of different concentrations of MeJA showed that a total of 7836, 6797 and 8310 genes were differentially expressed in the comparisons of CKvsM10, CKvsM50, CKvsM100, respectively. The analysis of differentially expressed genes (DEGs) showed phenylpropanoid biosynthesis, vitamin B6, ascorbate and aldarate metabolism-related genes were significantly enriched. The transcripts of flavonoid and terpenoid metabolism pathways and plant hormone signal transduction, especially the jasmonic acid (JA) signal-related genes, were differentially expressed in CKvsM50 and CKvsM100 comparisons. In addition, the transcription factors (TFs), e.g., MYC2, DELLA, MYB111 played a key role in rosemary suspension cells under MeJA treatments. qRT-PCR of eleven DEGs showed a high correlation between the RNA-seq and the qRT-PCR result. Taken together, MeJA alleviated peroxidative damage of the rosemary suspension cells in a wide concentration range via concentration-dependent differential expression patterns. This study provided a transcriptome sequence resource responding to MeJA and a valuable resource for the genetic and genomic studies of the active compounds engineering in rosemary.
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Simple modifications of nicotinic, isonicotinic, and 2,6-dichloroisonicotinic acids toward new weapons against plant diseases. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Recently, the biggest challenge in agriculture is the search for new, effective, and ecological methods of protecting plants against diseases. One of the fastest-growing and prospective strategies is a method based on activating the plant’s natural defenses. The use of suitable substances (elicitors) stimulates the immune system of plants, which makes them resistant to infections even before the first symptoms appear. This article presents preparation, characterization, phytotoxicity, and plant resistance induction efficacy of 28 ester derivatives of nicotinic, isonicotinic, and 2,6-dichloroisonicotinic acids as potential inducers of plants’ natural immune system. Plant resistance induction efficacy tests were performed on tobacco Nicotiana tabacum var. Xanthi infected by the tobacco mosaic virus (TMV).
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Sikder MM, Vestergård M, Kyndt T, Kudjordjie EN, Nicolaisen M. Phytohormones selectively affect plant parasitic nematodes associated with Arabidopsis roots. THE NEW PHYTOLOGIST 2021; 232:1272-1285. [PMID: 34115415 DOI: 10.1111/nph.17549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
Phytohormones may affect plant-nematode interactions directly as chemo-attractants or -repellents, or indirectly through the root-associated microbiome or through host defense mechanisms. However, the exact roles of phytohormones in these complex plant-soil-nematode interactions are not well understood. We used Arabidopsis thaliana mutants impaired in phytohormone synthesis or sensitivity to elucidate their role in root-nematode interactions. As root-associated microorganisms may modulate these interactions, we explored correlations between the relative abundances of root-associated nematodes, and bacteria and fungi using amplicon sequencing. We found distinct shifts in relative abundances of a range of nematode taxa in the A. thaliana phytohormone mutants. The root knot nematode Meloidogyne hapla, a sedentary endoparasitic species that is in intimate contact with the host, was highly enriched in JA-, SA- and SL-impaired lines, and in an ET-insensitive line. Positive or negative correlations between specific microbial and nematode taxa were observed, but, as the inference of causal relationships between microbiome responses and effects on nematode communities is premature, this should be studied in detail in future studies. In conclusion, genetic derailment of hormonal balances generally rendered plants vulnerable to endoparasitic nematode attack. Furthermore, preliminary data suggest that this effect may be partially modulated by the associated microbiome.
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Affiliation(s)
- Md Maniruzzaman Sikder
- Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Slagelse, 4200, Denmark
- Department of Botany, Faculty of Biological Sciences, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
| | - Mette Vestergård
- Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Slagelse, 4200, Denmark
| | - Tina Kyndt
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Gent, 9000, Belgium
| | - Enoch Narh Kudjordjie
- Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Slagelse, 4200, Denmark
| | - Mogens Nicolaisen
- Department of Agroecology, Faculty of Technical Sciences, Aarhus University, Slagelse, 4200, Denmark
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Mass Spectrometric Monitoring of Plant Hormone Cross Talk During Biotic Stress Responses in Potato (Solanum tuberosum L.). Methods Mol Biol 2021. [PMID: 34448159 DOI: 10.1007/978-1-0716-1609-3_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The potato is among the most important food crops in the world and of incalculable value for global food security. In 2012, the crop area for potato in Northern and Western Europe reached almost 1 million ha and a production of over 37 million tons with an average yield between 18 and 45 tons/ha. However, current potato production is put in jeopardy by a number of important biotic stress factors including late blight (Phytophthora infestans), which was responsible for the disastrous Irish potato famine during 1843-1845. P. infestans shows a remarkable capacity for adaptation with respect to host genotype and applied fungicides. This has made disease management to become more and more difficult and put substantial emphasis on gaining more detailed insight into the molecular bases of plant pathogen interactions, in order to find more sophisticated ways for biological pest control. The plant hormones jasmonic acid (JA) and salicylic acid (SA) play central roles in the regulation of plant responses to biotic foes. In addition, other phytohormones including auxins and abscisic acid (ABA) have also been associated with plant defense responses. For this reason, the parallel analysis of multiple plant hormones in small tissue amounts represents an important field of research in contemporary plant sciences. Here, we describe a highly sensitive and accurate method for the quantitative analysis of ABA, JA, SA, and indole-3-acetic acid in potato plants by gas chromatography-coupled tandem mass spectrometry (GC-MS/MS).
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Wang Y, Mostafa S, Zeng W, Jin B. Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses. Int J Mol Sci 2021; 22:8568. [PMID: 34445272 PMCID: PMC8395333 DOI: 10.3390/ijms22168568] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/31/2021] [Accepted: 08/06/2021] [Indexed: 01/16/2023] Open
Abstract
As sessile organisms, plants must tolerate various environmental stresses. Plant hormones play vital roles in plant responses to biotic and abiotic stresses. Among these hormones, jasmonic acid (JA) and its precursors and derivatives (jasmonates, JAs) play important roles in the mediation of plant responses and defenses to biotic and abiotic stresses and have received extensive research attention. Although some reviews of JAs are available, this review focuses on JAs in the regulation of plant stress responses, as well as JA synthesis, metabolism, and signaling pathways. We summarize recent progress in clarifying the functions and mechanisms of JAs in plant responses to abiotic stresses (drought, cold, salt, heat, and heavy metal toxicity) and biotic stresses (pathogen, insect, and herbivore). Meanwhile, the crosstalk of JA with various other plant hormones regulates the balance between plant growth and defense. Therefore, we review the crosstalk of JAs with other phytohormones, including auxin, gibberellic acid, salicylic acid, brassinosteroid, ethylene, and abscisic acid. Finally, we discuss current issues and future opportunities in research into JAs in plant stress responses.
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Affiliation(s)
| | | | | | - Biao Jin
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China; (Y.W.); (S.M.); (W.Z.)
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Kurniawan A, Chuang HW. Rhizobacterial Bacillus mycoides functions in stimulating the antioxidant defence system and multiple phytohormone signalling pathways to regulate plant growth and stress tolerance. J Appl Microbiol 2021; 132:1260-1274. [PMID: 34365711 DOI: 10.1111/jam.15252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/05/2021] [Accepted: 07/26/2021] [Indexed: 12/29/2022]
Abstract
AIMS To analyse effects and mechanisms of plant growth promotion mediated by Bacillus mycoides strain A3 (BmA3), in Arabidopsis thaliana seedlings. METHODS AND RESULTS Bacillus mycoides strain A3 (BmA3) isolated from the bamboo rhizosphere produced phytohormones, including indole-3-acetic acid (IAA) and gibberellic acid (GA), and exhibited phosphate solubilization and radical scavenging activities. A. thaliana seedlings inoculated with BmA3 exhibited an altered root architecture including an increased number of lateral roots and root hairs. Likewise, enhanced photosynthetic efficiency through the accumulation of higher levels of chlorophyll and starch, and increased plant size and fresh weight were observed in the BmA3-treated seedlings. This bacterial inoculation stimulated the antioxidant defence system by increasing the activities of catalase (CAT), guaiacol peroxidase (GPX), ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL). Secondary metabolites, including phenolic compounds, flavonoids and glucosinolates, were induced to higher levels in the BmA3-treated plants. Under drought and heat stresses, lower levels of H2 O2 , malondialdehyde (MDA) and electrolyte leakage were noticed in the treated seedlings. Genes involved in the signalling pathway of jasmonic acid (JA) including MYC2 and lipoxygenase 1 (LOX1) and salicylic acid (SA) including SAR DEFICIENT 1 (SARD1) and CAM-BINDING PROTEIN 60-LIKE G (CBP60G), and the antioxidant defence system including Ascorbate peroxidase (AtAPX) and alternative oxidase (AOX) were upregulated in BmA3-treated plants. Moreover, pathogenesis-related protein 1 (PR-1) and PR-2, marker genes for disease resistance, as well as DREB2A and HsFA2, which function in abiotic stress regulation, were also upregulated. CONCLUSIONS BmA3 was able to activate JA and SA signalling pathways to induce plant growth and abiotic stress tolerance in A. thaliana seedlings. SIGNIFICANCE AND IMPACT OF STUDY The plant growth promotion and increased stress tolerance induced by BmA3 were the result of the combined effects of microbial metabolites and activated host plant responses, including phytohormone signalling pathways and antioxidant defence systems.
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Affiliation(s)
- Andi Kurniawan
- Department of Bioagricultural Sciences, National Chiayi University, Chiayi, Taiwan
| | - Huey-Wen Chuang
- Department of Bioagricultural Sciences, National Chiayi University, Chiayi, Taiwan
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Chen Q, Zhang R, Li D, Wang F. Integrating Transcriptome and Coexpression Network Analyses to Characterize Salicylic Acid- and Jasmonic Acid-Related Genes in Tolerant Poplars Infected with Rust. Int J Mol Sci 2021; 22:ijms22095001. [PMID: 34066822 PMCID: PMC8125932 DOI: 10.3390/ijms22095001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 11/16/2022] Open
Abstract
Melampsora larici-populina causes serious poplar foliar diseases called rust worldwide. Salicylic acid (SA) and jasmonic acid (JA) are important phytohormones that are related to plant defence responses. To investigate the transcriptome profiles of SA- and JA-related genes involved in poplar rust interaction, two tolerant poplars and one intolerant poplar were selected for this study. Weighted gene coexpression network analysis (WGCNA) was applied to characterize the changes in the transcriptome profiles and contents of SA and JA after infection with the virulent E4 race of M. larici-populina. In response to infection with the E4 race of M. larici-populina, tolerant symptoms were correlated with the expression of genes related to SA and JA biosynthesis, the levels of SA and JA, and the expression of defence-related genes downstream of SA and JA. Tolerant poplars could promptly regulate the occurrence of defence responses by activating or inhibiting SA or JA pathways in a timely manner, including regulating the expression of genes related to programmed cell death, such as Kunitz-type trypsin inhibitor (KTI), to limit the growth of E4 and protect themselves. WGCNA suggested that KTI might be regulated by a Cytochrome P450 family (CYP) gene. Some CYPs should play an important role in both JA- and SA-related pathways. In contrast, in intolerant poplar, the inhibition of SA-related defence signalling through increasing JA levels in the early stage led to continued inhibition of a large number of plant–pathogen interaction-related and signalling-related genes, including NBS-LRRs, EDS1, NDR1, WRKYs, and PRs. Therefore, timely activation or inhibition of the SA or JA pathways is the key difference between tolerant and intolerant poplars.
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Affiliation(s)
- Qiaoli Chen
- Key Laboratory of Alien Forest Pests Detection and Control-Heilongjiang Province, School of Forestry, Northeast Forestry University, Harbin 150040, China; (Q.C.); (R.Z.); (D.L.)
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Ruizhi Zhang
- Key Laboratory of Alien Forest Pests Detection and Control-Heilongjiang Province, School of Forestry, Northeast Forestry University, Harbin 150040, China; (Q.C.); (R.Z.); (D.L.)
| | - Danlei Li
- Key Laboratory of Alien Forest Pests Detection and Control-Heilongjiang Province, School of Forestry, Northeast Forestry University, Harbin 150040, China; (Q.C.); (R.Z.); (D.L.)
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Feng Wang
- Key Laboratory of Alien Forest Pests Detection and Control-Heilongjiang Province, School of Forestry, Northeast Forestry University, Harbin 150040, China; (Q.C.); (R.Z.); (D.L.)
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China
- Correspondence: ; Tel.: +86-0451-82190384
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Kimberlin A, Holtsclaw RE, Koo AJ. Differential Regulation of the Ribosomal Association of mRNA Transcripts in an Arabidopsis Mutant Defective in Jasmonate-Dependent Wound Response. FRONTIERS IN PLANT SCIENCE 2021; 12:637959. [PMID: 33777072 PMCID: PMC7990880 DOI: 10.3389/fpls.2021.637959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/01/2021] [Indexed: 06/02/2023]
Abstract
Jasmonoyl-L-isoleucine (JA-Ile) is a powerful oxylipin responsible for the genome-wide transcriptional reprogramming in plants that results in major physiological shifts from growth to defense. The double T-DNA insertion Arabidopsis mutant, cyp94b1cyp94b3 (b1b3), defective in cytochrome p450s, CYP94B1 and CYP94B3, which are responsible for oxidizing JA-Ile, accumulates several fold higher levels of JA-Ile yet displays dampened JA-Ile-dependent wound responses-the opposite of what is expected. Transcriptomic and proteomic analyses showed that while the transcriptional response to wounding was largely unchanged in b1b3 compared to wild type (WT), many proteins were found to be significantly reduced in the mutant, which was verified by immunoblot analyses of marker proteins. To understand this protein phenotype and their hypothesized contribution to the b1b3 phenotypes, wounded rosette leaf samples from both WT and b1b3 were subject to a translating ribosome affinity purification RNA sequencing analysis. More than 1,600 genes whose transcripts do not change in abundance by wounding changed their association with the ribosomes after wounding in WT leaves. Consistent with previous observations, the total pool of mRNA transcripts was similar between WT and b1b3; however, the ribosome-associated pool of transcripts was changed significantly. Most notably, fewer transcripts were associated with the ribosome pool in b1b3 than in WT, potentially explaining the reduction of many proteins in the mutant. Among those genes with fewer ribosome-associated transcripts in b1b3 were genes relating to stress response, specialized metabolism, protein metabolism, ribosomal subunits, and transcription factors, consistent with the biochemical phenotypes of the mutant. These results show previously unrecognized regulations at the translational level that are affected by misregulation of JA homeostasis during the wound response in plants.
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Affiliation(s)
- Athen Kimberlin
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Rebekah E. Holtsclaw
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Abraham J. Koo
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
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Burdziej A, Bellée A, Bodin E, Valls Fonayet J, Magnin N, Szakiel A, Richard T, Cluzet S, Corio-Costet MF. Three Types of Elicitors Induce Grapevine Resistance against Downy Mildew via Common and Specific Immune Responses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1781-1795. [PMID: 33529021 DOI: 10.1021/acs.jafc.0c06103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Three recognized plant defense stimulators (PDS), methyl jasmonate (MeJA), benzothiadiazole (BTH) and phosphonates (PHOS), were sprayed on grapevine Vitis vinifera cuttings and conferred resistance to the biotrophic pathogen Plasmopara viticola. The effects on molecular defense-related genes and polyphenol content (stilbenes and flavanols) were revealed at 6 and 8 days post-elicitation. The transcript accumulation was consistent with the signaling pathway specific to the elicitor, salicylic acid for BTH, and jasmonic acid for MeJA, with some cross-talks. PHOS tended to modulate the defense responses like BTH. Moreover, in response to a downy mildew inoculation, the leaves pre-treated with PHOS and BTH overproduced pterostilbene, and after MeJA treatment, piceids and ε-viniferin, compared to uninoculated elicitor-treated leaves. These results provide evidence of the different modes of action of PDS and their role in sustainable viticulture.
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Affiliation(s)
- Aleksandra Burdziej
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
- Department of Plant Biochemistry, Faculty of Biology, University of Warsaw, ul. Miecznikowa 1, 02-096 Warszawa, Poland
| | - Anthony Bellée
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Enora Bodin
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Josep Valls Fonayet
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Noël Magnin
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
| | - Anna Szakiel
- Department of Plant Biochemistry, Faculty of Biology, University of Warsaw, ul. Miecznikowa 1, 02-096 Warszawa, Poland
| | - Tristan Richard
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Stéphanie Cluzet
- University of Bordeaux, Faculté des Sciences Pharmaceutiques, Unité de recherche Œnologie, EA 4577, USC 1366 INRAE, Equipe Molécules d'Intérêt Biologique (GESVAB), ISVV, 33882 Villenave d'Ornon cedex, France
| | - Marie-France Corio-Costet
- INRAE, UMR Santé et Agroécologie du Vignoble (1065), ISVV, Labex Cote, CS 20032, 33882 Villenave d'Ornon, France
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Liu Z, Mohsin A, Wang Z, Zhu X, Zhuang Y, Cao L, Guo M, Yin Z. Enhanced Biosynthesis of Chlorogenic Acid and Its Derivatives in Methyl-Jasmonate-Treated Gardenia jasminoides Cells: A Study on Metabolic and Transcriptional Responses of Cells. Front Bioeng Biotechnol 2021; 8:604957. [PMID: 33469531 PMCID: PMC7813945 DOI: 10.3389/fbioe.2020.604957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/19/2020] [Indexed: 11/13/2022] Open
Abstract
Chlorogenic acid and its derivatives (CQAs) are considered as important bioactive secondary metabolites in Gardenia jasminoides Ellis (G. jasminoides). However, few studies have investigated the biosynthesis and regulation of CQAs in G. jasminoides. In this study, methyl jasmonate (MeJA) was used to enhance CQAs accumulation in cultured G. jasminoides cells. Moreover, the possible molecular mechanism of MeJA-mediated accumulation of CQAs is also explored. To this end, time-course transcriptional profiles of G. jasminoides cells responding to MeJA were used to investigate the mechanism from different aspects, including jasmonate (JAs) biosynthesis, signal transduction, biosynthesis of precursor, CQAs biosynthesis, transporters, and transcription factors (TFs). A total of 57,069 unigenes were assembled from the clean reads, in which 80.7% unigenes were successfully annotated. Furthermore, comparative transcriptomic results indicated that differentially expressed genes (DEGs) were mainly involved in JAs biosynthesis and signal transduction (25 DEGs), biosynthesis of precursor for CQAs (18 DEGs), CQAs biosynthesis (19 DEGs), and transporters (29 DEGs). Most of these DEGs showed continuously upregulated expressions over time, which might activate the jasmonic acid (JA) signal transduction network, boost precursor supply, and ultimately stimulate CQAs biosynthesis. Additionally, various TFs from different TF families also responded to MeJA elicitation. Interestingly, 38 DEGs from different subgroups of the MYB family might display positive or negative regulations on phenylpropanoids, especially on CQAs biosynthesis. Conclusively, our results provide insight into the possible molecular mechanism of regulation on CQAs biosynthesis, which led to a high CQAs yield in the G. jasminoides cells under MeJA treatment.
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Affiliation(s)
- Zebo Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.,Jiangxi Key Laboratory of Natural Products and Functional Foods, Jiangxi Agricultural University, Nanchang, China
| | - Ali Mohsin
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zejian Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Xiaofeng Zhu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Yingping Zhuang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Liming Cao
- Crop Breeding and Cultivation Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Meijin Guo
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhongping Yin
- Jiangxi Key Laboratory of Natural Products and Functional Foods, Jiangxi Agricultural University, Nanchang, China
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Ma L, Sun Y, Ruan X, Huang PC, Wang S, Li S, Zhou Y, Wang F, Cao Y, Wang Q, Wang Z, Kolomiets MV, Gao X. Genome-Wide Characterization of Jasmonates Signaling Components Reveals the Essential Role of ZmCOI1a-ZmJAZ15 Action Module in Regulating Maize Immunity to Gibberella Stalk Rot. Int J Mol Sci 2021; 22:E870. [PMID: 33467172 PMCID: PMC7830991 DOI: 10.3390/ijms22020870] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/24/2020] [Accepted: 01/05/2021] [Indexed: 12/20/2022] Open
Abstract
Gibberella stalk rot (GSR) by Fusarium graminearum causes significant losses of maize production worldwide. Jasmonates (JAs) have been broadly known in regulating defense against pathogens through the homeostasis of active JAs and COI-JAZ-MYC function module. However, the functions of different molecular species of JAs and COI-JAZ-MYC module in maize interactions with Fusarium graminearum and regulation of diverse metabolites remain unknown. In this study, we found that exogenous application of MeJA strongly enhanced resistance to GSR. RNA-seq analysis showed that MeJA activated multiple genes in JA pathways, which prompted us to perform a genome-wide screening of key JA signaling components in maize. Yeast Two-Hybrid, Split-Luciferase, and Pull-down assays revealed that the JA functional and structural mimic coronatine (COR) functions as an essential ligand to trigger the interaction between ZmCOIa and ZmJAZ15. By deploying CRISPR-cas9 knockout and Mutator insertional mutants, we demonstrated that coi1a mutant is more resistant, whereas jaz15 mutant is more susceptible to GSR. Moreover, JA-deficient opr7-5opr8-2 mutant displayed enhanced resistance to GSR compared to wild type. Together, these results provide strong evidence that ZmJAZ15 plays a pivotal role, whereas ZmCOIa and endogenous JA itself might function as susceptibility factors, in maize immunity to GSR.
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Affiliation(s)
- Liang Ma
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yali Sun
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinsen Ruan
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Pei-Cheng Huang
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77840-2132, USA; (P.-C.H.); (M.V.K.)
| | - Shi Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shunfa Li
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Zhou
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (Y.Z.); (Z.W.)
| | - Fang Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Cao
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qing Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenhua Wang
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (Y.Z.); (Z.W.)
| | - Michael V. Kolomiets
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77840-2132, USA; (P.-C.H.); (M.V.K.)
| | - Xiquan Gao
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (L.M.); (Y.S.); (X.R.); (S.W.); (S.L.); (F.W.); (Y.C.); (Q.W.)
- Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China
- College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
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Oliw EH. Linoleate diol synthase related enzymes of the human pathogens Histoplasma capsulatum and Blastomyces dermatitidis. Arch Biochem Biophys 2020; 696:108669. [DOI: 10.1016/j.abb.2020.108669] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 12/16/2022]
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Yu SG, Kim JH, Cho NH, Oh TR, Kim WT. Arabidopsis RING E3 ubiquitin ligase JUL1 participates in ABA-mediated microtubule depolymerization, stomatal closure, and tolerance response to drought stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:824-842. [PMID: 32314432 DOI: 10.1111/tpj.14775] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/28/2020] [Accepted: 03/31/2020] [Indexed: 05/20/2023]
Abstract
Ubiquitination is a critical post-translational protein modification that has been implicated in diverse cellular processes, including abiotic stress responses, in plants. In the present study, we identified and characterized a T-DNA insertion mutant in the At5g10650 locus. Compared to wild-type Arabidopsis plants, at5g10650 progeny were hyposensitive to ABA at the germination stage. At5g10650 possessed a single C-terminal C3HC4-type Really Interesting New Gene (RING) motif, which was essential for ABA-mediated germination and E3 ligase activity in vitro. At5g10650 was closely associated with microtubules and microtubule-associated proteins in Arabidopsis and tobacco leaf cells. Localization of At5g10650 to the nucleus was frequently observed. Unexpectedly, At5g10650 was identified as JAV1-ASSOCIATED UBIQUITIN LIGASE1 (JUL1), which was recently reported to participate in the jasmonate signaling pathway. The jul1 knockout plants exhibited impaired ABA-promoted stomatal closure. In addition, stomatal closure could not be induced by hydrogen peroxide and calcium in jul1 plants. jul1 guard cells accumulated wild-type levels of H2 O2 after ABA treatment. These findings indicated that JUL1 acts downstream of H2 O2 and calcium in the ABA-mediated stomatal closure pathway. Typical radial arrays of microtubules were maintained in jul1 guard cells after exposure to ABA, H2 O2 , and calcium, which in turn resulted in ABA-hyposensitive stomatal movements. Finally, jul1 plants were markedly more susceptible to drought stress than wild-type plants. Overall, our results suggest that the Arabidopsis RING E3 ligase JUL1 plays a critical role in ABA-mediated microtubule disorganization, stomatal closure, and tolerance to drought stress.
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Affiliation(s)
- Seong Gwan Yu
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Jong Hum Kim
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Na Hyun Cho
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Tae Rin Oh
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
| | - Woo Taek Kim
- Department of Systems Biology and Division of Life Science, Yonsei University, Seoul, 03722, Korea
- Institute of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Korea
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Clarke CR, Park SY, Tuosto R, Jia X, Yoder A, Van Mullekom J, Westwood J. Multiple immunity-related genes control susceptibility of Arabidopsis thaliana to the parasitic weed Phelipanche aegyptiaca. PeerJ 2020; 8:e9268. [PMID: 32551199 PMCID: PMC7289146 DOI: 10.7717/peerj.9268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/10/2020] [Indexed: 12/14/2022] Open
Abstract
Parasitic weeds represent a major threat to agricultural production across the world. Little is known about which host genetic pathways determine compatibility for any host–parasitic plant interaction. We developed a quantitative assay to characterize the growth of the parasitic weed Phelipanche aegyptiaca on 46 mutant lines of the host plant Arabidopsis thaliana to identify host genes that are essential for susceptibility to the parasite. A. thaliana host plants with mutations in genes involved in jasmonic acid biosynthesis/signaling or the negative regulation of plant immunity were less susceptible to P. aegyptiaca parasitization. In contrast, A. thaliana plants with a mutant allele of the putative immunity hub gene Pfd6 were more susceptible to parasitization. Additionally, quantitative PCR revealed that P. aegyptiaca parasitization leads to transcriptional reprograming of several hormone signaling pathways. While most tested A. thaliana lines were fully susceptible to P. aegyptiaca parasitization, this work revealed several host genes essential for full susceptibility or resistance to parasitism. Altering these pathways may be a viable approach for limiting host plant susceptibility to parasitism.
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Affiliation(s)
- Christopher R Clarke
- Genetic Improvement of Fruits and Vegetables Laboratory, United States Department of Agriculture, Agricultural Research Service, Beltsville, MD, USA
| | - So-Yon Park
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Robert Tuosto
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Xiaoyan Jia
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Amanda Yoder
- Department of Statistics, Virginia Tech, Blacksburg, VA, USA
| | | | - James Westwood
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA, USA
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Tian C, Liu S, Jiang L, Tian S, Wang G. The expression characteristics of methyl jasmonate biosynthesis-related genes in Cymbidium faberi and influence of heterologous expression of CfJMT in Petunia hybrida. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 151:400-410. [PMID: 32278958 DOI: 10.1016/j.plaphy.2020.03.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/20/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
Cymbidium faberi Rolfe (Orchidaceae) is an herbaceous plant native to China, where it has a long history of cultivation owing to its beautiful flower pattern and floral fragrance. Previously, we conducted a transcriptome analysis of the flower and vegetative buds to elucidate the mechanisms of flower development in C. faberi. In the present study, we found nine secondary metabolic pathways through the KEGG pathway database that were related to the biosynthesis of methyl jasmonate (MeJA) and other volatile organic compounds. qRT-PCR was performed to analyze the expression levels of four key genes in the MeJA pathway. Among these, CfJMT (jasmonic acid carboxyl methyltransferase) had higher transcript levels in sepals, petals and labella than in other tissues. CfJMT was cloned from the petals of full-bloom flowers of C. faberi. The predicted CfJMT protein sequence contains conserved jasmonic acid methyl transferase-7 domains, indicating that it belongs to the SABATH protein family. The CfJMT coding sequence driven by the CaMV35S promoter was successfully transformed into Petunia hybrida through an Agrobacterium-mediated method. Although MeJA could not be detected in either wild-type or transgenic petunia plants, the leaves of the transgenic plants were smaller than those of wild-type plants and pollen development was abnormal. These results indicate that heterologous expression of CfJMT may change the levels of endogenous jasmonic acid and other hormones, but that the content of MeJA is not increased significantly by transformation with CfJMT alone. Thus, other related genes and regulation factors may play important roles in this process.
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Affiliation(s)
- Chunling Tian
- Department of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Song Liu
- Department of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Li Jiang
- Department of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Silin Tian
- Department of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Guangdong Wang
- Department of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Maurya R, Srivastava D, Singh M, Sawant SV. Envisioning the immune interactome in Arabidopsis. FUNCTIONAL PLANT BIOLOGY : FPB 2020; 47:486-507. [PMID: 32345431 DOI: 10.1071/fp19188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/13/2020] [Indexed: 06/11/2023]
Abstract
During plant-pathogen interaction, immune targets were regulated by protein-protein interaction events such as ligand-receptor/co-receptor, kinase-substrate, protein sequestration, activation or repression via post-translational modification and homo/oligo/hetro-dimerisation of proteins. A judicious use of molecular machinery requires coordinated protein interaction among defence components. Immune signalling in Arabidopsis can be broadly represented in successive or simultaneous steps; pathogen recognition at cell surface, Ca2+ and reactive oxygen species signalling, MAPK signalling, post-translational modification, transcriptional regulation and phyto-hormone signalling. Proteome wide interaction studies have shown the existence of interaction hubs associated with physiological function. So far, a number of protein interaction events regulating immune targets have been identified, but their understanding in an interactome view is lacking. We focussed specifically on the integration of protein interaction signalling in context to plant-pathogenesis and identified the key targets. The present review focuses towards a comprehensive view of the plant immune interactome including signal perception, progression, integration and physiological response during plant pathogen interaction.
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Affiliation(s)
- Rashmi Maurya
- Plant Molecular Biology Lab, National Botanical Research Institute, Lucknow. 226001; and Department of Botany, Lucknow University, Lucknow. 226007
| | - Deepti Srivastava
- Integral Institute of Agricultural Science and Technology (IIAST) Integral University, Kursi Road, Dashauli, Uttar Pradesh. 226026
| | - Munna Singh
- Department of Botany, Lucknow University, Lucknow. 226007
| | - Samir V Sawant
- Plant Molecular Biology Lab, National Botanical Research Institute, Lucknow. 226001; and Corresponding author.
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Zhao G, Song Y, Wang Q, Yao D, Li D, Qin W, Ge X, Yang Z, Xu W, Su Z, Zhang X, Li F, Wu J. Gossypium hirsutum Salt Tolerance Is Enhanced by Overexpression of G. arboreum JAZ1. Front Bioeng Biotechnol 2020; 8:157. [PMID: 32211392 PMCID: PMC7076078 DOI: 10.3389/fbioe.2020.00157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/17/2020] [Indexed: 12/24/2022] Open
Abstract
Gossypium arboreum possesses many favorable traits including robust defense against biotic and abiotic stress although it has been withdrawn from the market because of lower yield and fiber quality compared to G. hirsutum (upland cotton). It is therefore important to explore and utilize the beneficial genes of G. arboretum for G. hirsutum cultivar breeding. Here, the function of G. arboreum JAZ1 in tolerance to salt stress was determined through loss-of-function analysis. GaJAZ1can interact with GaMYC2 to repress expression of downstream genes whose promoters contain a G-box cis element, affecting plant tolerance to salinity stress. The experimental data from NaCl treatments and a 2 year continuous field trial with natural saline-alkaline soil showed that the ectopically overexpressed GaJAZ1 significantly increased salt tolerance in upland cotton compared to the wild type, showing higher growth vigor with taller plants, increased fresh weight, and more bolls, which is due to reprogrammed expression of tolerance-related genes and promotion of root development. High-throughput RNA sequencing of GaJAZ1 transgenic and wild-type plants showed many differentially expressed genes involved in JA signaling and biosynthesis, salt stress-related genes, and hormone-related genes, suggesting that overexpressing GaJAZ1 can reprogram the expression of defense-related genes in G. hirsutum plants to increase tolerance to salt stress. The research provides a foundation to explore and utilize favorable genes from Gossypium species for upland cotton cultivar breeding.
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Affiliation(s)
- Ge Zhao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China.,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Yun Song
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Qianhua Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Dongxia Yao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Dongliang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Wenqiang Qin
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Xiaoyang Ge
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Zuoren Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Wenying Xu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Zhen Su
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xueyan Zhang
- Key Laboratory for Ecology of Tropical Islands, Ministry of Education, College of Life Sciences, Hainan Normal University, Haikou, China
| | - Fuguang Li
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China.,State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Jiahe Wu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China.,State Key Laboratory of Plant Genomics, Institute of Microbiology Research, Chinese Academy of Sciences, Beijing, China
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Shkryl Y, Veremeichik G, Silantieva S, Bulgakov V. Differential expression of calcium-dependent protein kinase genes (CDPK1–14) in Rubia cordifolia callus cultures transformed with the rolB and rolC genes. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.plgene.2019.100215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Huang S, Zhang X, Fernando WGD. Directing Trophic Divergence in Plant-Pathogen Interactions: Antagonistic Phytohormones With NO Doubt? FRONTIERS IN PLANT SCIENCE 2020; 11:600063. [PMID: 33343601 PMCID: PMC7744310 DOI: 10.3389/fpls.2020.600063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/02/2020] [Indexed: 05/15/2023]
Abstract
A fundamental process culminating in the mechanisms of plant-pathogen interactions is the regulation of trophic divergence into biotrophic, hemibiotrophic, and necrotrophic interactions. Plant hormones, of almost all types, play significant roles in this regulatory apparatus. In plant-pathogen interactions, two classical mechanisms underlying hormone-dependent trophic divergence are long recognized. While salicylic acid dominates in the execution of host defense response against biotrophic and early-stage hemibiotrophic pathogens, jasmonic acid, and ethylene are key players facilitating host defense response against necrotrophic and later-stage hemibiotrophic pathogens. Evidence increasingly suggests that trophic divergence appears to be modulated by more complex signaling networks. Acting antagonistically or agonistically, other hormones such as auxins, cytokinins, abscisic acid, gibberellins, brassinosteroids, and strigolactones, as well as nitric oxide, are emerging candidates in the regulation of trophic divergence. In this review, the latest advances in the dynamic regulation of trophic divergence are summarized, emphasizing common and contrasting hormonal and nitric oxide signaling strategies deployed in plant-pathogen interactions.
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Costarelli A, Bianchet C, Ederli L, Salerno G, Piersanti S, Rebora M, Pasqualini S. Salicylic acid induced by herbivore feeding antagonizes jasmonic acid mediated plant defenses against insect attack. PLANT SIGNALING & BEHAVIOR 2019; 15:1704517. [PMID: 31852340 PMCID: PMC7012100 DOI: 10.1080/15592324.2019.1704517] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 05/25/2023]
Abstract
We recently reported the transcriptomic signature of salicylic acid (SA) and jasmonic acid (JA) biosynthetic and responsive genes in Arabidopsis thaliana plants infested with the herbivore Eurydema oleracea. We demonstrated that insect feeding causes induction of both SA- and JA-mediated signaling pathways. Using transgenic SA-deficient NahG plants, we also showed antagonistic cross-talk between these two phytohormones. To gain more insight into the roles of the SA and JA pathways in plant defenses against E. oleracea, we report here on the dynamics of SA and JA levels in the wild-type genotype Col-0 and the transgenic Arabidopsis NahG mutant that does not accumulate SA. We show that SA strongly accumulates in the wild-type plants after 24 h of herbivore infestation, while JA levels do not change significantly. On the contrary, in the infested NahG plants, SA levels were not affected by E. oleracea feeding, whereas JA levels which were constitutively higher than the wild-type did not significantly change after 6 hours of herbivore feeding. Accordingly, when the wild-type and the jar1-1 mutant (which fails to accumulate JA-Ile) Arabidopsis plants were challenged with E. oleracea in a two-choice arena, the insect fed preferentially on the jar1-1 plants over the wild-type. These data support the conclusion that E. oleracea infestation strongly induces the SA pathway in the wild-type, thus antagonizing JA-mediated plant defenses against herbivory, as a strategy to suppress plant immunity.
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Affiliation(s)
- Alma Costarelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Chantal Bianchet
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Luisa Ederli
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Gianandrea Salerno
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Silvana Piersanti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Manuela Rebora
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Stefania Pasqualini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
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Perincherry L, Lalak-Kańczugowska J, Stępień Ł. Fusarium-Produced Mycotoxins in Plant-Pathogen Interactions. Toxins (Basel) 2019; 11:toxins11110664. [PMID: 31739566 PMCID: PMC6891594 DOI: 10.3390/toxins11110664] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022] Open
Abstract
Pathogens belonging to the Fusarium genus are causal agents of the most significant crop diseases worldwide. Virtually all Fusarium species synthesize toxic secondary metabolites, known as mycotoxins; however, the roles of mycotoxins are not yet fully understood. To understand how a fungal partner alters its lifestyle to assimilate with the plant host remains a challenge. The review presented the mechanisms of mycotoxin biosynthesis in the Fusarium genus under various environmental conditions, such as pH, temperature, moisture content, and nitrogen source. It also concentrated on plant metabolic pathways and cytogenetic changes that are influenced as a consequence of mycotoxin confrontations. Moreover, we looked through special secondary metabolite production and mycotoxins specific for some significant fungal pathogens-plant host models. Plant strategies of avoiding the Fusarium mycotoxins were also discussed. Finally, we outlined the studies on the potential of plant secondary metabolites in defense reaction to Fusarium infection.
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Srivastava AK, Dutta S, Chattopadhyay S. MYC2 regulates ARR16, a component of cytokinin signaling pathways, in Arabidopsis seedling development. PLANT DIRECT 2019; 3:e00177. [PMID: 31788657 PMCID: PMC6875704 DOI: 10.1002/pld3.177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/07/2019] [Accepted: 09/22/2019] [Indexed: 06/10/2023]
Abstract
MYC2 is a basic helix-loop-helix transcription factor that acts as a repressor of blue light-mediated photomorphogenic growth; however, it promotes lateral root formation. MYC2 also regulates different phytohormone-signaling pathways in crucial manner. Arabidopsis response regulator 16 (ARR16) is a negative regulator of cytokinin signaling pathways. Here, we show that MYC2 directly binds to the E-box of ARR16 minimal promoter and negatively regulates its expression in a cytokinin-dependent manner. While ARR16 and MYC2 influence jasmonic acid and cytokinin signaling, the expression of ARR16 is regulated by cry1, GBF1, and HYH, the components of light signaling pathways. The transgenic studies show that the expression of ARR16 is regulated by MYC2 at various stages of development. The mutational studies reveal that ARR16 positively regulates the hypocotyl growth in blue light, and phenotypic analysis of atmyc2 arr16 double mutant further reveals that arr16 can suppress the short hypocotyl phenotype of atmyc2. Altogether, this work highlights MYC2-mediated transcriptional repression of ARR16 in Arabidopsis seedling development.
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Affiliation(s)
| | - Siddhartha Dutta
- Department of BiotechnologyNational Institute of TechnologyDurgapurIndia
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46
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Sui X, Zhang H, Song Z, Gao Y, Li W, Li M, Zhao L, Li Y, Wang B. Ethylene response factor NtERF91 positively regulates alkaloid accumulations in tobacco (Nicotiana tabacum L.). Biochem Biophys Res Commun 2019; 517:164-171. [PMID: 31326115 DOI: 10.1016/j.bbrc.2019.07.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 07/12/2019] [Indexed: 01/05/2023]
Abstract
Tobacco alkaloid metabolism is regulated by various transcription factors (TFs). Here, we have characterized a non-NIC2 locus gene, Ethylene Response Factor 91 (ERF91), function in regulation of alkaloid accumulation in tobacco. NtERF91 was preferentially expressed in roots and induced by jasmonic acid. Additionally, NtERF91 was able to in vitro bind to the NtPMT2 and NtQPT2 promoters via directly targeting the GCC-box elements and transactivate NtQPT2 gene expression. Ectopic overexpression of NtERF91 not only increased the expression of most nicotine biosynthetic genes, but also altered alkaloid accumulation profile, resulting in dramatically anatabine accumulation. We conclude that NtERF91 plays an overlapped but distinct role in regulating tobacco alkaloid accumulations.
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Affiliation(s)
- Xueyi Sui
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Hongbo Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, Shandong, 266101, China
| | - Zhongbang Song
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Yulong Gao
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Wenzheng Li
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Meiyun Li
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Lu Zhao
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Yongping Li
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China
| | - Bingwu Wang
- Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, Yunnan, 650201, China.
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Kim K, Yadav D, Cho M. Multi-phased internalization of murine norovirus (MNV) in Arabidopsis seedlings and its potential correlation with plant defensive responses. Microb Pathog 2019; 135:103648. [PMID: 31356928 DOI: 10.1016/j.micpath.2019.103648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/26/2019] [Accepted: 07/26/2019] [Indexed: 12/20/2022]
Abstract
Norovirus is a highly infectious human pathogen that causes acute foodborne diseases worldwide. As global diet patterns have begun to incorporate a higher consumption of fresh agricultural products, the internalization of norovirus into plants has emerged as a potential threat to human health. Here, we demonstrated that murine norovirus (MNV1) was internalized into Arabidopsis in multiple phases, and this internalization was correlated with Arabidopsis innate immunity responses. Under hydroponic conditions, continuous treatment of MNV1 retarded root growth and facilitated flower development of Arabidopsis without causing necrotic lesions. Examination of viral titers and RNA levels revealed that MNV1 was internalized into Arabidopsis in at least three different phases. In response to MNV1 treatment, the Arabidopsis defensive marker PR1 (a salicylic acid signaling marker) was transiently up-regulated at the early stage. PDF1.2, a jasmonic acid signaling marker, exhibited a gradual induction over time. Noticeably, Arabidopsis RNS1 (T2 ribonuclease) was rapidly induced by MNV1 and exhibited anti-correlation with the internalization of MNV1. Exposure to recombinant Arabidopsis RNS1 protein reduced the viral titers and degraded MNV1 RNA in vitro. In conclusion, the internalization of MNV1 into Arabidopsis was fluctuated by mutual interactions that were potentially regulated by Arabidopsis immune systems containing RNS1.
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Affiliation(s)
- Kangmin Kim
- SELS Center, Division of Biotechnology, College of Environmental & Bioresource Sciences, Chonbuk National University, Iksan, 54596, Republic of Korea.
| | - Dhananjay Yadav
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Min Cho
- SELS Center, Division of Biotechnology, College of Environmental & Bioresource Sciences, Chonbuk National University, Iksan, 54596, Republic of Korea.
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Ju L, Jing Y, Shi P, Liu J, Chen J, Yan J, Chu J, Chen KM, Sun J. JAZ proteins modulate seed germination through interaction with ABI5 in bread wheat and Arabidopsis. THE NEW PHYTOLOGIST 2019; 223:246-260. [PMID: 30802963 DOI: 10.1111/nph.15757] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/18/2019] [Indexed: 05/21/2023]
Abstract
Appropriate regulation of crop seed germination is of significance for agriculture production. In this study, we show that TaJAZ1, most closely related to Arabidopsis JAZ3, negatively modulates abscisic acid (ABA)-inhibited seed germination and ABA-responsive gene expression in bread wheat. Biochemical interaction assays demonstrate that the C-terminal part containing the Jas domain of TaJAZ1 physically interacts with TaABI5. Similarly, Arabidopsis jasmonate-ZIM domain (JAZ) proteins also negatively modulate ABA responses. Further we find that a subset of JAZ proteins could interact with ABI5 using the luciferase complementation imaging assays. Choosing JAZ3 as a representative, we demonstrate that JAZ3 interacts with ABI5 in vivo and represses the transcriptional activation activity of ABI5. ABA application could abolish the enrichment of JAZ proteins in the ABA-responsive gene promoter. Furthermore, we find that ABA application could induce the expression of jasmonate (JA) biosynthetic genes and then increase the JA concentrations partially dependent on the function of ABI5, consequently leading to the degradation of JAZ proteins. This study sheds new light on the crosstalk between JA and ABA in modulating seed germination in bread wheat and Arabidopsis.
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Affiliation(s)
- Lan Ju
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yexing Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Pengtao Shi
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jie Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiansheng Chen
- State Key Laboratory of Crop Biology/Group of Quality Wheat Breeding in Agronomy, Shandong Agricultural University, Taian, 271018, Shandong, China
| | - Jijun Yan
- National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jinfang Chu
- National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Kun-Ming Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jiaqiang Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Zhao W, Baldwin EA, Bai J, Plotto A, Irey M. Comparative analysis of the transcriptomes of the calyx abscission zone of sweet orange insights into the huanglongbing-associated fruit abscission. HORTICULTURE RESEARCH 2019; 6:71. [PMID: 31231529 PMCID: PMC6544638 DOI: 10.1038/s41438-019-0152-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 05/27/2023]
Abstract
Citrus greening disease or huanglongbing (HLB) is associated with excessive pre-harvest fruit drop. To understand the mechanisms of the HLB-associated fruit abscission, transcriptomes were analyzed by RNA sequencing of calyx abscission zones (AZ-C) of dropped "Hamlin" oranges from HLB-diseased trees upon shaking the trees (Dd), retained oranges on diseased trees (Rd), dropped oranges from healthy shaken trees (Dh), and retained oranges on healthy trees (Rh). Cluster analysis of transcripts indicated that Dd had the largest distances from all other groups. Comparisons of transcriptomes revealed 1047, 1599, 813, and 764 differentially expressed genes (DEGs) between Dd/Rd, Dd/Dh, Dh/Rh, and Rd/Rh. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses indicated hormone signaling, defense response, and secondary metabolism were involved in HLB-associated fruit abscission. Ethylene (ET) and jasmonic acid (JA) synthesis/signaling-related genes were upregulated in Dd, while other phytohormone-related genes were generally downregulated. In addition, genes related to JA/ET-activated defense response were upregulated in Dd as well. Consistent with the phytohormone gene expression data, increased levels (p < 0.05) of ET and JA, and a decreased level (p < 0.05) of abscisic acid were found in Dd compared with Rd, Dh or Rh. Lasiodiploidia theobromae level in Dd AZ-C was higher than the other fruit types, confirmed by qPCR, indicating AZ-C secondary fungal infection of HLB fruit may exacerbate their abscission. This information will help formulate effective strategies to control HLB-related abscission.
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Affiliation(s)
- Wei Zhao
- USDA/ARS Horticultural Research Laboratory, 2001 South Rock Road, Fort Pierce, FL 34945 USA
| | - Elizabeth A. Baldwin
- USDA/ARS Horticultural Research Laboratory, 2001 South Rock Road, Fort Pierce, FL 34945 USA
| | - Jinhe Bai
- USDA/ARS Horticultural Research Laboratory, 2001 South Rock Road, Fort Pierce, FL 34945 USA
| | - Anne Plotto
- USDA/ARS Horticultural Research Laboratory, 2001 South Rock Road, Fort Pierce, FL 34945 USA
| | - Mike Irey
- Southern Gardens Citrus Nursery, 111 Ponce de Leon Avenue, Clewiston, FL 33440 USA
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50
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Targeted transcriptional and proteomic studies explicate specific roles of Bacillus subtilis iturin A, fengycin, and surfactin on elicitation of defensive systems in mandarin fruit during stress. PLoS One 2019; 14:e0217202. [PMID: 31120923 PMCID: PMC6532888 DOI: 10.1371/journal.pone.0217202] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023] Open
Abstract
Application of Bacillus cyclic lipopeptides (CLPs); fengycin, iturin A and surfactin has shown a great potential in controlling the spread of green mold pathogen invasion (Penicillium digitatum) in wounded mandarin fruit during postharvest period. The limited defensive protein profiles followed specific expression of pivotal genes relating to plant hormone mediating signaling pathways of the CLPs’ action on stimulating host plant resistance have been exhibited. The present study aimed to elucidate the specific effect of individual CLP obtained from Bacillus subtilis ABS-S14 as elicitor role on activation of plant defensive system at transcriptional and proteomic levels with and without P. digitatum co-application in mandarin fruit. Fengycin and iturin A elevated the gene expression of PAL, ACS1, ACO, CHI, and GLU while significantly stimulating plant POD transcription was only detected in the treatments of surfactin both with and without following P. digitatum. An increase of LOX and PR1 gene transcripts was determined in the treatments of individual CLP with fungal pathogen co-application. Fengycin activated production of unique defensive proteins such as protein involved in ubiquinone biosynthetic process in treated flavedo without P. digitatum infection. Proteins involved in the auxin modulating pathway were present in the iturin A and surfactin treatments. CLP-protein binding assay following proteome analysis reveals that iturin A attached to 12-oxophytodienoate reductase 2 involved in the oxylipin biosynthetic process required for jasmonic acid production which is implicated in induced systemic resistance (ISR). This study suggests specific elicitor action of individual CLP, particularly iturin A showed the most powerful in stimulating the ISR system in response to stresses in postharvest mandarins.
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