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Kim HJ, Jang JW, Pham T, Tuyet V, Kim JH, Park CW, Gho YS, Kim EJ, Kwon SW, Jeon JS, Kim ST, Jung KH, Kim YJ. OsLRR-RLP2 Gene Regulates Immunity to Magnaporthe oryzae in Japonica Rice. Int J Mol Sci 2024; 25:2216. [PMID: 38396893 PMCID: PMC10889788 DOI: 10.3390/ijms25042216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Rice is an important cereal crop worldwide, the growth of which is affected by rice blast disease, caused by the fungal pathogen Magnaporthe oryzae. As climate change increases the diversity of pathogens, the disease resistance genes (R genes) in plants must be identified. The major blast-resistance genes have been identified in indica rice varieties; therefore, japonica rice varieties with R genes now need to be identified. Because leucine-rich repeat (LRR) domain proteins possess R-gene properties, we used bioinformatics analysis to identify the rice candidate LRR domain receptor-like proteins (OsLRR-RLPs). OsLRR-RLP2, which contains six LRR domains, showed differences in the DNA sequence, containing 43 single-nucleotide polymorphisms (SNPs) in indica and japonica subpopulations. The results of the M. oryzae inoculation analysis indicated that indica varieties with partial deletion of OsLRR-RLP2 showed susceptibility, whereas japonica varieties with intact OsLRR-RLP2 showed resistance. The oslrr-rlp2 mutant, generated using clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9), showed increased pathogen susceptibility, whereas plants overexpressing this gene showed pathogen resistance. These results indicate that OsLRR-RLP2 confers resistance to rice, and OsLRR-RLP2 may be useful for breeding resistant cultivars.
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Affiliation(s)
- Hyo-Jeong Kim
- Department of Life Science and Environmental Biochemistry, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (H.-J.K.); (J.-H.K.); (C.W.P.)
| | - Jeong Woo Jang
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (J.W.J.); (S.-W.K.); (S.T.K.)
| | - Thuy Pham
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Van Tuyet
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Ji-Hyun Kim
- Department of Life Science and Environmental Biochemistry, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (H.-J.K.); (J.-H.K.); (C.W.P.)
| | - Chan Woo Park
- Department of Life Science and Environmental Biochemistry, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (H.-J.K.); (J.-H.K.); (C.W.P.)
| | - Yun-Shil Gho
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Eui-Jung Kim
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Soon-Wook Kwon
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (J.W.J.); (S.-W.K.); (S.T.K.)
| | - Jong-Seong Jeon
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (J.W.J.); (S.-W.K.); (S.T.K.)
| | - Ki-Hong Jung
- Graduate School of Green Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea; (T.P.); (V.T.); (Y.-S.G.); (E.-J.K.); (J.-S.J.)
| | - Yu-Jin Kim
- Department of Life Science and Environmental Biochemistry, Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea; (H.-J.K.); (J.-H.K.); (C.W.P.)
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Ai G, Li T, Zhu H, Dong X, Fu X, Xia C, Pan W, Jing M, Shen D, Xia A, Tyler BM, Dou D. BPL3 binds the long non-coding RNA nalncFL7 to suppress FORKED-LIKE7 and modulate HAI1-mediated MPK3/6 dephosphorylation in plant immunity. THE PLANT CELL 2023; 35:598-616. [PMID: 36269178 PMCID: PMC9806616 DOI: 10.1093/plcell/koac311] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
RNA-binding proteins (RBPs) participate in a diverse set of biological processes in plants, but their functions and underlying mechanisms in plant-pathogen interactions are largely unknown. We previously showed that Arabidopsis thaliana BPA1-LIKE PROTEIN3 (BPL3) belongs to a conserved plant RBP family and negatively regulates reactive oxygen species (ROS) accumulation and cell death under biotic stress. In this study, we demonstrate that BPL3 suppresses FORKED-LIKE7 (FL7) transcript accumulation and raises levels of the cis-natural antisense long non-coding RNA (lncRNA) of FL7 (nalncFL7). FL7 positively regulated plant immunity to Phytophthora capsici while nalncFL7 negatively regulated resistance. We also showed that BPL3 directly binds to and stabilizes nalncFL7. Moreover, nalncFL7 suppressed accumulation of FL7 transcripts. Furthermore, FL7 interacted with HIGHLY ABA-INDUCED PP2C1 (HAI1), a type 2C protein phosphatase, and inhibited HAI1 phosphatase activity. By suppressing HAI1 activity, FL7 increased the phosphorylation levels of MITOGEN-ACTIVATED PROTEIN KINASE 3 (MPK3) and MPK6, thus enhancing immunity responses. BPL3 and FL7 are conserved in all plant species tested, but the BPL3-nalncFL7-FL7 cascade was specific to the Brassicaceae. Thus, we identified a conserved BPL3-nalncFL7-FL7 cascade that coordinates plant immunity.
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Affiliation(s)
- Gan Ai
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Tianli Li
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Hai Zhu
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaohua Dong
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaowei Fu
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Chuyan Xia
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Weiye Pan
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Maofeng Jing
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Danyu Shen
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Ai Xia
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
| | - Brett M Tyler
- Center for Quantitative Life Sciences and Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon 97331, USA
| | - Daolong Dou
- College of Plant Protection, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing 210095, China
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Wang N, Yin Z, Zhao Y, Wang J, Pei Y, Ji P, Daly P, Li Z, Dou D, Wei L. An F-box protein attenuates fungal xylanase-triggered immunity by destabilizing LRR-RLP NbEIX2 in a SOBIR1-dependent manner. THE NEW PHYTOLOGIST 2022; 236:2202-2215. [PMID: 36151918 DOI: 10.1111/nph.18509] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Receptor-like proteins (RLPs) lacking the cytoplasmic kinase domain play crucial roles in plant growth, development and immunity. However, what remains largely elusive is whether RLP protein levels are fine-tuned by E3 ubiquitin ligases, which are employed by receptor-like kinases for signaling attenuation. Nicotiana benthamiana NbEIX2 is a leucine-rich repeat RLP (LRR-RLP) that mediates fungal xylanase-triggered immunity. Here we show that NbEIX2 associates with an F-box protein NbPFB1, which promotes NbEIX2 degradation likely by forming an SCF E3 ubiquitin ligase complex, and negatively regulates NbEIX2-mediated immune responses. NbEIX2 undergoes ubiquitination and proteasomal degradation in planta. Interestingly, NbEIX2 without its cytoplasmic tail is still associated with and destabilized by NbPFB1. In addition, NbPFB1 also associates with and destabilizes NbSOBIR1, a co-receptor of LRR-RLPs, and fails to promote NbEIX2 degradation in the sobir1 mutant. Our findings reveal a distinct model of NbEIX2 degradation, in which an F-box protein destabilizes NbEIX2 indirectly in a SOBIR1-dependent manner.
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Affiliation(s)
- Nan Wang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 210014, Nanjing, China
| | - Zhiyuan Yin
- College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China
| | - Yaning Zhao
- College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China
| | - Jinghao Wang
- College of Plant Protection, China Agricultural University, 100193, Beijing, China
| | - Yong Pei
- College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China
| | - Peiyun Ji
- College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China
| | - Paul Daly
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 210014, Nanjing, China
| | - Zhengpeng Li
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Sciences, Huaiyin Normal University, 223300, Huaian, China
| | - Daolong Dou
- College of Plant Protection, Nanjing Agricultural University, 210095, Nanjing, China
| | - Lihui Wei
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, 210014, Nanjing, China
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Cantila AY, Thomas WJW, Bayer PE, Edwards D, Batley J. Predicting Cloned Disease Resistance Gene Homologs (CDRHs) in Radish, Underutilised Oilseeds, and Wild Brassicaceae Species. PLANTS (BASEL, SWITZERLAND) 2022; 11:3010. [PMID: 36432742 PMCID: PMC9693284 DOI: 10.3390/plants11223010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Brassicaceae crops, including Brassica, Camelina and Raphanus species, are among the most economically important crops globally; however, their production is affected by several diseases. To predict cloned disease resistance (R) gene homologs (CDRHs), we used the protein sequences of 49 cloned R genes against fungal and bacterial diseases in Brassicaceae species. In this study, using 20 Brassicaceae genomes (17 wild and 3 domesticated species), 3172 resistance gene analogs (RGAs) (2062 nucleotide binding-site leucine-rich repeats (NLRs), 497 receptor-like protein kinases (RLKs) and 613 receptor-like proteins (RLPs)) were identified. CDRH clusters were also observed in Arabis alpina, Camelina sativa and Cardamine hirsuta with assigned chromosomes, consisting of 62 homogeneous (38 NLR, 17 RLK and 7 RLP clusters) and 10 heterogeneous RGA clusters. This study highlights the prevalence of CDRHs in the wild relatives of the Brassicaceae family, which may lay the foundation for rapid identification of functional genes and genomics-assisted breeding to develop improved disease-resistant Brassicaceae crop cultivars.
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Sun Y, Wang Y, Zhang X, Chen Z, Xia Y, Wang L, Sun Y, Zhang M, Xiao Y, Han Z, Wang Y, Chai J. Plant receptor-like protein activation by a microbial glycoside hydrolase. Nature 2022; 610:335-342. [PMID: 36131021 DOI: 10.1038/s41586-022-05214-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 08/09/2022] [Indexed: 11/09/2022]
Abstract
Plants rely on cell-surface-localized pattern recognition receptors to detect pathogen- or host-derived danger signals and trigger an immune response1-6. Receptor-like proteins (RLPs) with a leucine-rich repeat (LRR) ectodomain constitute a subgroup of pattern recognition receptors and play a critical role in plant immunity1-3. Mechanisms underlying ligand recognition and activation of LRR-RLPs remain elusive. Here we report a crystal structure of the LRR-RLP RXEG1 from Nicotiana benthamiana that recognizes XEG1 xyloglucanase from the pathogen Phytophthora sojae. The structure reveals that specific XEG1 recognition is predominantly mediated by an amino-terminal and a carboxy-terminal loop-out region (RXEG1(ID)) of RXEG1. The two loops bind to the active-site groove of XEG1, inhibiting its enzymatic activity and suppressing Phytophthora infection of N. benthamiana. Binding of XEG1 promotes association of RXEG1(LRR) with the LRR-type co-receptor BAK1 through RXEG1(ID) and the last four conserved LRRs to trigger RXEG1-mediated immune responses. Comparison of the structures of apo-RXEG1(LRR), XEG1-RXEG1(LRR) and XEG1-BAK1-RXEG1(LRR) shows that binding of XEG1 induces conformational changes in the N-terminal region of RXEG1(ID) and enhances structural flexibility of the BAK1-associating regions of RXEG1(LRR). These changes allow fold switching of RXEG1(ID) for recruitment of BAK1(LRR). Our data reveal a conserved mechanism of ligand-induced heterodimerization of an LRR-RLP with BAK1 and suggest a dual function for the LRR-RLP in plant immunity.
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Affiliation(s)
- Yue Sun
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Yan Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China. .,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China.
| | - Xiaoxiao Zhang
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhaodan Chen
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China
| | - Yeqiang Xia
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China
| | - Lei Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China
| | - Yujing Sun
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China
| | - Mingmei Zhang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China
| | - Yu Xiao
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhifu Han
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
| | - Yuanchao Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China. .,The Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing, China.
| | - Jijie Chai
- Tsinghua-Peking Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China. .,Max Planck Institute for Plant Breeding Research, Cologne, Germany. .,Institute of Biochemistry, University of Cologne, Cologne, Germany. .,Cluster of Excellence in Plant Sciences (CEPLAS), Düsseldorf, Germany.
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Chen R, Sun P, Zhong G, Wang W, Tang D. The RECEPTOR-LIKE PROTEIN53 immune complex associates with LLG1 to positively regulate plant immunity. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1833-1846. [PMID: 35796320 DOI: 10.1111/jipb.13327] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Pattern recognition receptors (PRRs) sense ligands in pattern-triggered immunity (PTI). Plant PRRs include numerous receptor-like proteins (RLPs), but many RLPs remain functionally uncharacterized. Here, we examine an Arabidopsis thaliana RLP, RLP53, which positively regulates immune signaling. Our forward genetic screen for suppressors of enhanced disease resistance1 (edr1) identified a point mutation in RLP53 that fully suppresses disease resistance and mildew-induced cell death in edr1 mutants. The rlp53 mutants showed enhanced susceptibility to virulent pathogens, including fungi, oomycetes, and bacteria, indicating that RLP53 is important for plant immunity. The ectodomain of RLP53 contains leucine-rich repeat (LRR) motifs. RLP53 constitutively associates with the LRR receptor-like kinase SUPPRESSOR OF BRASSINOSTEROID INSENSITIVE1-ASSOCIATED KINASE (BAK1)-INTERACTING RECEPTOR KINASE1 (SOBIR1) and interacts with the co-receptor BAK1 in a pathogen-induced manner. The double mutation sobir1-12 bak1-5 suppresses edr1-mediated disease resistance, suggesting that EDR1 negatively regulates PTI modulated by the RLP53-SOBIR1-BAK1 complex. Moreover, the glycosylphosphatidylinositol (GPI)-anchored protein LORELEI-LIKE GPI-ANCHORED PROTEIN1 (LLG1) interacts with RLP53 and mediates RLP53 accumulation in the plasma membrane. We thus uncovered the role of a novel RLP and its associated immune complex in plant defense responses and revealed a potential new mechanism underlying regulation of RLP immune function by a GPI-anchored protein.
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Affiliation(s)
- Renjie Chen
- State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Plant Immunity Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Pengwei Sun
- Institute of Genetics and Developmental Biology, the Chinese Academy of Sciences, Beijing, 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guitao Zhong
- State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Plant Immunity Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wei Wang
- State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Plant Immunity Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Dingzhong Tang
- State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Plant Immunity Center, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
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Offor BC, Mhlongo MI, Dubery IA, Piater LA. Plasma Membrane-Associated Proteins Identified in Arabidopsis Wild Type, lbr2-2 and bak1-4 Mutants Treated with LPSs from Pseudomonas syringae and Xanthomonas campestris. MEMBRANES 2022; 12:membranes12060606. [PMID: 35736313 PMCID: PMC9230897 DOI: 10.3390/membranes12060606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023]
Abstract
Plants recognise bacterial microbe-associated molecular patterns (MAMPs) from the environment via plasma membrane (PM)-localised pattern recognition receptor(s) (PRRs). Lipopolysaccharides (LPSs) are known as MAMPs from gram-negative bacteria that are most likely recognised by PRRs and trigger defence responses in plants. The Arabidopsis PRR(s) and/or co-receptor(s) complex for LPS and the associated defence signalling remains elusive. As such, proteomic identification of LPS receptors and/or co-receptor complexes will help to elucidate the molecular mechanisms that underly LPS perception and defence signalling in plants. The Arabidopsis LPS-binding protein (LBP) and bactericidal/permeability-increasing protein (BPI)-related-2 (LBR2) have been shown to recognise LPS and trigger defence responses while brassinosteroid insensitive 1 (BRI1)-associated receptor kinase 1 (BAK1) acts as a co-receptor for several PRRs. In this study, Arabidopsis wild type (WT) and T-DNA knock out mutants (lbr2-2 and bak1-4) were treated with LPS chemotypes from Pseudomonas syringae pv. tomato DC3000 (Pst) and Xanthomonas campestris pv. campestris 8004 (Xcc) over a 24 h period. The PM-associated protein fractions were separated by liquid chromatography and analysed by tandem mass spectrometry (LC-MS/MS) followed by data analysis using ByonicTM software. Using Gene Ontology (GO) for molecular function and biological processes, significant LPS-responsive proteins were grouped according to defence and stress response, perception and signalling, membrane transport and trafficking, metabolic processes and others. Venn diagrams demarcated the MAMP-responsive proteins that were common and distinct to the WT and mutant lines following treatment with the two LPS chemotypes, suggesting contributions from differential LPS sub-structural moieties and involvement of LBR2 and BAK1 in the LPS-induced MAMP-triggered immunity (MTI). Moreover, the identification of RLKs and RLPs that participate in other bacterial and fungal MAMP signalling proposes the involvement of more than one receptor and/or co-receptor for LPS perception as well as signalling in Arabidopsis defence responses.
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Mining of Cloned Disease Resistance Gene Homologs (CDRHs) in Brassica Species and Arabidopsis thaliana. BIOLOGY 2022; 11:biology11060821. [PMID: 35741342 PMCID: PMC9220128 DOI: 10.3390/biology11060821] [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: 04/16/2022] [Revised: 05/15/2022] [Accepted: 05/24/2022] [Indexed: 01/23/2023]
Abstract
Simple Summary Developing cultivars with resistance genes (R genes) is an effective strategy to support high yield and quality in Brassica crops. The availability of clone R gene and genomic sequences in Brassica species and Arabidopsis thaliana provide the opportunity to compare genomic regions and survey R genes across genomic databases. In this paper, we aim to identify genes related to cloned genes through sequence identity, providing a repertoire of species-wide related R genes in Brassica crops. The comprehensive list of candidate R genes can be used as a reference for functional analysis. Abstract Various diseases severely affect Brassica crops, leading to significant global yield losses and a reduction in crop quality. In this study, we used the complete protein sequences of 49 cloned resistance genes (R genes) that confer resistance to fungal and bacterial diseases known to impact species in the Brassicaceae family. Homology searches were carried out across Brassica napus, B. rapa, B. oleracea, B. nigra, B. juncea, B. carinata and Arabidopsis thaliana genomes. In total, 660 cloned disease R gene homologs (CDRHs) were identified across the seven species, including 431 resistance gene analogs (RGAs) (248 nucleotide binding site-leucine rich repeats (NLRs), 150 receptor-like protein kinases (RLKs) and 33 receptor-like proteins (RLPs)) and 229 non-RGAs. Based on the position and distribution of specific homologs in each of the species, we observed a total of 87 CDRH clusters composed of 36 NLR, 16 RLK and 3 RLP homogeneous clusters and 32 heterogeneous clusters. The CDRHs detected consistently across the seven species are candidates that can be investigated for broad-spectrum resistance, potentially providing resistance to multiple pathogens. The R genes identified in this study provide a novel resource for the future functional analysis and gene cloning of Brassicaceae R genes towards crop improvement.
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Cordelier S, Crouzet J, Gilliard G, Dorey S, Deleu M, Dhondt-Cordelier S. Deciphering the role of plant plasma membrane lipids in response to invasion patterns: how could biology and biophysics help? JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2765-2784. [PMID: 35560208 DOI: 10.1093/jxb/erab517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/25/2021] [Indexed: 06/15/2023]
Abstract
Plants have to constantly face pathogen attacks. To cope with diseases, they have to detect the invading pathogen as early as possible via the sensing of conserved motifs called invasion patterns. The first step of perception occurs at the plasma membrane. While many invasion patterns are perceived by specific proteinaceous immune receptors, several studies have highlighted the influence of the lipid composition and dynamics of the plasma membrane in the sensing of invasion patterns. In this review, we summarize current knowledge on how some microbial invasion patterns could interact with the lipids of the plasma membrane, leading to a plant immune response. Depending on the invasion pattern, different mechanisms are involved. This review outlines the potential of combining biological with biophysical approaches to decipher how plasma membrane lipids are involved in the perception of microbial invasion patterns.
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Affiliation(s)
- Sylvain Cordelier
- Université de Reims Champagne Ardenne, RIBP EA 4707, USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France
| | - Jérôme Crouzet
- Université de Reims Champagne Ardenne, RIBP EA 4707, USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France
| | - Guillaume Gilliard
- Laboratoire de Biophysique Moléculaire aux Interfaces, SFR Condorcet FR CNRS 3417, TERRA Research Center, Gembloux Agro-Bio Tech, Université de Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
| | - Stéphan Dorey
- Université de Reims Champagne Ardenne, RIBP EA 4707, USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France
| | - Magali Deleu
- Laboratoire de Biophysique Moléculaire aux Interfaces, SFR Condorcet FR CNRS 3417, TERRA Research Center, Gembloux Agro-Bio Tech, Université de Liège, 2 Passage des Déportés, B-5030 Gembloux, Belgium
| | - Sandrine Dhondt-Cordelier
- Université de Reims Champagne Ardenne, RIBP EA 4707, USC INRAE 1488, SFR Condorcet FR CNRS 3417, 51100 Reims, France
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Wei X, Wang Y, Zhang S, Gu T, Steinmetz G, Yu H, Guo G, Liu X, Fan S, Wang F, Gu Y, Xin F. Structural analysis of receptor-like kinase SOBIR1 reveals mechanisms that regulate its phosphorylation-dependent activation. PLANT COMMUNICATIONS 2022; 3:100301. [PMID: 35529948 PMCID: PMC9073325 DOI: 10.1016/j.xplc.2022.100301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 11/04/2021] [Accepted: 01/15/2022] [Indexed: 05/20/2023]
Abstract
Plant leucine-rich repeat (LRR) receptor-like kinases (RLKs) and LRR receptor-like proteins (RLPs) comprise a large family of cell surface receptors that play critical roles in signal perception and transduction. Both LRR-RLKs and LRR-RLPs rely on regulatory LRR-RLKs to initiate downstream signaling pathways. BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED KINASE 1/SOMATIC EMBRYOGENESIS RECEPTOR KINASE 3 (BAK1/SERK3) and SUPPRESSOR OF BIR1-1 (SOBIR1) are important and extensively studied regulatory LRR-RLKs with distinct functions. Although the regulatory mechanism of BAK1 activation has been studied in detail, the activation mechanism of SOBIR1 remains poorly understood. Here, the crystal structures of the catalytically inactive kinase domain of SOBIR1 (SOBIR1-KD) from Arabidopsis thaliana were determined in complexes with AMP-PNP and Mg2+. The results show that SOBIR1-KD contains a uniquely long β3-αC loop and adopts an Src-like inactive conformation with an unusual architecture at the activation segment, which comprises three helices. Biochemical studies revealed that SOBIR1 is transphosphorylated by BAK1 following its autophosphorylation via an intermolecular mechanism, and the phosphorylation of Thr529 in the activation segment and the β3-αC loop are critical for SOBIR1 phosphorylation. Further functional analysis confirmed the importance of Thr529 and the β3-αC loop for the SOBIR1-induced cell death response in Nicotiana benthamiana. Taken together, these findings provide a structural basis for the regulatory mechanism of SOBIR1 and reveal the important elements and phosphorylation events in the special stepwise activation of SOBIR1-KD, the first such processes found in regulatory LRR-RLKs.
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Affiliation(s)
- Xue Wei
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yulu Wang
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Su Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
| | - Tianyi Gu
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Gabryel Steinmetz
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
- Innovative Genomics Institute, University of California, Berkeley, CA 94720, USA
| | - Haiyan Yu
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Guoguang Guo
- Key Laboratory of Ministry of Education for Protein Science, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xin Liu
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shilong Fan
- The Center of Protein Science, Tsinghua University, Beijing 100084, China
| | - Fengzhong Wang
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yangnan Gu
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
- Innovative Genomics Institute, University of California, Berkeley, CA 94720, USA
| | - Fengjiao Xin
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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11
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Chen Y, Yan W, Guo D, Li Y, Li J, Liu H, Wei L, Yu N, Wang B, Zheng Y, Jing M, Zhao J, Ye Y. An Activity‐Based Sensing Fluorogenic Probe for Monitoring Ethylene in Living Cells and Plants. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yiliang Chen
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Wei Yan
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Duojing Guo
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Yu Li
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Ji Li
- State Key Laboratory of Coordination Chemistry Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 P. R. China
| | - Hao Liu
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Lirong Wei
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Na Yu
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Biao Wang
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Ying Zheng
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Maofeng Jing
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
| | - Jing Zhao
- State Key Laboratory of Coordination Chemistry Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 P. R. China
| | - Yonghao Ye
- Key Laboratory of Plant Immunity, College of Plant Protection Nanjing Agricultural University Nanjing 210095 P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application Nanjing Agricultural University Nanjing 210095 P. R. China
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12
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Zhang L, Hua C, Pruitt RN, Qin S, Wang L, Albert I, Albert M, van Kan JAL, Nürnberger T. Distinct immune sensor systems for fungal endopolygalacturonases in closely related Brassicaceae. NATURE PLANTS 2021; 7:1254-1263. [PMID: 34326531 DOI: 10.1038/s41477-021-00982-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/07/2021] [Indexed: 05/23/2023]
Abstract
Plant pattern recognition receptors (PRRs) facilitate recognition of microbial patterns and mediate activation of plant immunity. Arabidopsis thaliana RLP42 senses fungal endopolygalacturonases (PGs) and triggers plant defence through complex formation with SOBIR1 and SERK co-receptors. Here, we show that a conserved 9-amino-acid fragment pg9(At) within PGs is sufficient to activate RLP42-dependent plant immunity. Structure-function analysis reveals essential roles of amino acid residues within the RLP42 leucine-rich repeat and island domains for ligand binding and PRR complex assembly. Sensitivity to pg9(At), which is restricted to A. thaliana and exhibits scattered accession specificity, is unusual for known PRRs. Arabidopsis arenosa and Brassica rapa, two Brassicaceae species closely related to A. thaliana, respectively perceive immunogenic PG fragments pg20(Aa) and pg36(Bra), which are structurally distinct from pg9(At). Our study provides evidence for rapid evolution of polymorphic PG sensors with distinct pattern specificities within a single plant family.
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Affiliation(s)
- Lisha Zhang
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany.
| | - Chenlei Hua
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany
| | - Rory N Pruitt
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany
| | - Si Qin
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany
- Laboratory of Phytopathology, Wageningen University, Wageningen, The Netherlands
| | - Lei Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
| | - Isabell Albert
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany
- Institute of Molecular Plant Physiology, Department of Biology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Markus Albert
- Institute of Molecular Plant Physiology, Department of Biology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Jan A L van Kan
- Laboratory of Phytopathology, Wageningen University, Wageningen, The Netherlands
| | - Thorsten Nürnberger
- Department of Plant Biochemistry, Centre of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany.
- Department of Biochemistry, University of Johannesburg, Johannesburg, South Africa.
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13
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Chen Y, Yan W, Guo D, Li Y, Li J, Liu H, Wei L, Yu N, Wang B, Zheng Y, Jing M, Zhao J, Ye Y. An Activity-Based Sensing Fluorogenic Probe for Monitoring Ethylene in Living Cells and Plants. Angew Chem Int Ed Engl 2021; 60:21934-21942. [PMID: 34291549 DOI: 10.1002/anie.202108335] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 02/06/2023]
Abstract
Ethylene (ET) is an important gaseous plant hormone. It is highly desirable to develop fluorescent probes for monitoring ethylene in living cells. We report an efficient RhIII -catalysed coupling of N-phenoxyacetamides to ethylene in the presence of an alcohol. The newly discovered coupling reaction exhibited a wide scope of N-phenoxyacetamides and excellent regioselectivity. We successfully developed three fluorophore-tagged RhIII -based fluorogenic coumarin-ethylene probes (CEPs) using this strategy for the selective and quantitative detection of ethylene. CEP-1 exhibited the highest sensitivity with a limit of detection of ethylene at 52 ppb in air. Furthermore, CEP-1 was successfully applied for imaging in living CHO-K1 cells and for monitoring endogenous-induced changes in ethylene biosynthesis in tobacco and Arabidopsis thaliana plants. These results indicate that CEP-1 has great potential to illuminate the spatiotemporal regulation of ethylene biosynthesis and ethylene signal transduction in living biological systems.
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Affiliation(s)
- Yiliang Chen
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Wei Yan
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Duojing Guo
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Yu Li
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Ji Li
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Hao Liu
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Lirong Wei
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Na Yu
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Biao Wang
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Ying Zheng
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Maofeng Jing
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Jing Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yonghao Ye
- Key Laboratory of Plant Immunity, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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14
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Steidele CE, Stam R. Multi-omics approach highlights differences between RLP classes in Arabidopsis thaliana. BMC Genomics 2021; 22:557. [PMID: 34284718 PMCID: PMC8290556 DOI: 10.1186/s12864-021-07855-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 06/28/2021] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The Leucine rich-repeat (LRR) receptor-like protein (RLP) family is a complex gene family with 57 members in Arabidopsis thaliana. Some members of the RLP family are known to be involved in basal developmental processes, whereas others are involved in defence responses. However, functional data is currently only available for a small subset of RLPs, leaving the remaining ones classified as RLPs of unknown function. RESULTS Using publicly available datasets, we annotated RLPs of unknown function as either likely defence-related or likely fulfilling a more basal function in plants. Then, using these categories, we can identify important characteristics that differ between the RLP subclasses. We found that the two classes differ in abundance on both transcriptome and proteome level, physical clustering in the genome and putative interaction partners. However, the classes do not differ in the genetic di versity of their individual members in accessible pan-genome data. CONCLUSIONS Our work has several implications for work related to functional studies on RLPs as well as for the understanding of RLP gene family evolution. Using our annotations, we can make suggestions on which RLPs can be identified as potential immune receptors using genetics tools and thereby complement disease studies. The lack of differences in nucleotide diversity between the two RLP subclasses further suggests that non-synonymous diversity of gene sequences alone cannot distinguish defence from developmental genes. By contrast, differences in transcript and protein abundance or clustering at genomic loci might also allow for functional annotations and characterisation in other plant species.
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Affiliation(s)
- C E Steidele
- Chair of Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Emil-Ramann- Straße 2, 85354, Freising, Germany
| | - R Stam
- Chair of Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Emil-Ramann- Straße 2, 85354, Freising, Germany.
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15
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Yu TY, Sun MK, Liang LK. Receptors in the Induction of the Plant Innate Immunity. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2021; 34:587-601. [PMID: 33512246 DOI: 10.1094/mpmi-07-20-0173-cr] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Plants adjust amplitude and duration of immune responses via different strategies to maintain growth, development, and resistance to pathogens. Pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity (ETI) play vital roles. Pattern recognition receptors, comprising a large number of receptor-like protein kinases and receptor-like proteins, recognize related ligands and trigger immunity. PTI is the first layer of the innate immune system, and it recognizes PAMPs at the plasma membrane to prevent infection. However, pathogens exploit effector proteins to bypass or directly inhibit the PTI immune pathway. Consistently, plants have evolved intracellular nucleotide-binding domain and leucine-rich repeat-containing proteins to detect pathogenic effectors and trigger a hypersensitive response to activate ETI. PTI and ETI work together to protect plants from infection by viruses and other pathogens. Diverse receptors and the corresponding ligands, especially several pairs of well-studied receptors and ligands in PTI immunity, are reviewed to illustrate the dynamic process of PTI response here.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Tian-Ying Yu
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Meng-Kun Sun
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Li-Kun Liang
- College of Life Sciences, Yantai University, Yantai 264005, China
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16
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Zhou Q, Meng Q, Tan X, Ding W, Ma K, Xu Z, Huang X, Gao H. Protein Phosphorylation Changes During Systemic Acquired Resistance in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2021; 12:748287. [PMID: 34858456 PMCID: PMC8632492 DOI: 10.3389/fpls.2021.748287] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/08/2021] [Indexed: 05/03/2023]
Abstract
Systemic acquired resistance (SAR) in plants is a defense response that provides resistance against a wide range of pathogens at the whole-plant level following primary infection. Although the molecular mechanisms of SAR have been extensively studied in recent years, the role of phosphorylation that occurs in systemic leaves of SAR-induced plants is poorly understood. We used a data-independent acquisition (DIA) phosphoproteomics platform based on high-resolution mass spectrometry in an Arabidopsis thaliana model to identify phosphoproteins related to SAR establishment. A total of 8011 phosphorylation sites from 3234 proteins were identified in systemic leaves of Pseudomonas syringae pv. maculicola ES4326 (Psm ES4326) and mock locally inoculated plants. A total of 859 significantly changed phosphoproteins from 1119 significantly changed phosphopeptides were detected in systemic leaves of Psm ES4326 locally inoculated plants, including numerous transcription factors and kinases. A variety of defense response-related proteins were found to be differentially phosphorylated in systemic leaves of Psm ES4326 locally inoculated leaves, suggesting that these proteins may be functionally involved in SAR through phosphorylation or dephosphorylation. Significantly changed phosphoproteins were enriched mainly in categories related to response to abscisic acid, regulation of stomatal movement, plant-pathogen interaction, MAPK signaling pathway, purine metabolism, photosynthesis-antenna proteins, and flavonoid biosynthesis. A total of 28 proteins were regulated at both protein and phosphorylation levels during SAR. RT-qPCR analysis revealed that changes in phosphorylation levels of proteins during SAR did not result from changes in transcript abundance. This study provides comprehensive details of key phosphoproteins associated with SAR, which will facilitate further research on the molecular mechanisms of SAR.
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Affiliation(s)
- Qingfeng Zhou
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Qi Meng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Xiaomin Tan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Wei Ding
- Shanghai Omicsspace Biotechnology Co., Ltd., Shanghai, China
| | - Kang Ma
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Ziqin Xu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Xuan Huang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
- *Correspondence: Xuan Huang,
| | - Hang Gao
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
- Hang Gao,
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17
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Cantila AY, Saad NSM, Amas JC, Edwards D, Batley J. Recent Findings Unravel Genes and Genetic Factors Underlying Leptosphaeria maculans Resistance in Brassica napus and Its Relatives. Int J Mol Sci 2020; 22:E313. [PMID: 33396785 PMCID: PMC7795555 DOI: 10.3390/ijms22010313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 11/20/2022] Open
Abstract
Among the Brassica oilseeds, canola (Brassica napus) is the most economically significant globally. However, its production can be limited by blackleg disease, caused by the fungal pathogen Lepstosphaeria maculans. The deployment of resistance genes has been implemented as one of the key strategies to manage the disease. Genetic resistance against blackleg comes in two forms: qualitative resistance, controlled by a single, major resistance gene (R gene), and quantitative resistance (QR), controlled by numerous, small effect loci. R-gene-mediated blackleg resistance has been extensively studied, wherein several genomic regions harbouring R genes against L. maculans have been identified and three of these genes were cloned. These studies advance our understanding of the mechanism of R gene and pathogen avirulence (Avr) gene interaction. Notably, these studies revealed a more complex interaction than originally thought. Advances in genomics help unravel these complexities, providing insights into the genes and genetic factors towards improving blackleg resistance. Here, we aim to discuss the existing R-gene-mediated resistance, make a summary of candidate R genes against the disease, and emphasise the role of players involved in the pathogenicity and resistance. The comprehensive result will allow breeders to improve resistance to L. maculans, thereby increasing yield.
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Affiliation(s)
| | | | | | | | - Jacqueline Batley
- School of Biological Sciences, University of Western Australia, Perth, WA 6009, Australia; (A.Y.C.); (N.S.M.S.); (J.C.A.); (D.E.)
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18
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Kahlon PS, Seta SM, Zander G, Scheikl D, Hückelhoven R, Joosten MHAJ, Stam R. Population studies of the wild tomato species Solanum chilense reveal geographically structured major gene-mediated pathogen resistance. Proc Biol Sci 2020; 287:20202723. [PMID: 33352079 DOI: 10.1098/rspb.2020.2723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Natural plant populations encounter strong pathogen pressure and defence-associated genes are known to be under selection dependent on the pressure by the pathogens. Here, we use populations of the wild tomato Solanum chilense to investigate natural resistance against Cladosporium fulvum, a well-known ascomycete pathogen of domesticated tomatoes. Host populations used are from distinct geographical origins and share a defined evolutionary history. We show that distinct populations of S. chilense differ in resistance against the pathogen. Screening for major resistance gene-mediated pathogen recognition throughout the whole species showed clear geographical differences between populations and complete loss of pathogen recognition in the south of the species range. In addition, we observed high complexity in a homologues of Cladosporium resistance (Hcr) locus, underlying the recognition of C. fulvum, in central and northern populations. Our findings show that major gene-mediated recognition specificity is diverse in a natural plant-pathosystem. We place major gene resistance in a geographical context that also defined the evolutionary history of that species. Data suggest that the underlying loci are more complex than previously anticipated, with small-scale gene recombination being possibly responsible for maintaining balanced polymorphisms in the populations that experience pathogen pressure.
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Affiliation(s)
- Parvinderdeep S Kahlon
- Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Emil-Ramann-Str. 2, 85354 Freising, Germany
| | - Shallet Mindih Seta
- Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Emil-Ramann-Str. 2, 85354 Freising, Germany
| | - Gesche Zander
- Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Emil-Ramann-Str. 2, 85354 Freising, Germany
| | - Daniela Scheikl
- Section of Population Genetics, TUM School of Life Sciences, Technical University of Munich, Liesel-Beckmann Str. 2, 85354 Freising, Germany
| | - Ralph Hückelhoven
- Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Emil-Ramann-Str. 2, 85354 Freising, Germany
| | - Matthieu H A J Joosten
- Laboratory of Phytopathology, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Remco Stam
- Chair of Phytopathology, TUM School of Life Sciences, Technical University of Munich, Emil-Ramann-Str. 2, 85354 Freising, Germany
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19
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Steinbrenner AD, Muñoz-Amatriaín M, Chaparro AF, Aguilar-Venegas JM, Lo S, Okuda S, Glauser G, Dongiovanni J, Shi D, Hall M, Crubaugh D, Holton N, Zipfel C, Abagyan R, Turlings TCJ, Close TJ, Huffaker A, Schmelz EA. A receptor-like protein mediates plant immune responses to herbivore-associated molecular patterns. Proc Natl Acad Sci U S A 2020; 117:31510-31518. [PMID: 33229576 PMCID: PMC7733821 DOI: 10.1073/pnas.2018415117] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Herbivory is fundamental to the regulation of both global food webs and the extent of agricultural crop losses. Induced plant responses to herbivores promote resistance and often involve the perception of specific herbivore-associated molecular patterns (HAMPs); however, precisely defined receptors and elicitors associated with herbivore recognition remain elusive. Here, we show that a receptor confers signaling and defense outputs in response to a defined HAMP common in caterpillar oral secretions (OS). Staple food crops, including cowpea (Vigna unguiculata) and common bean (Phaseolus vulgaris), specifically respond to OS via recognition of proteolytic fragments of chloroplastic ATP synthase, termed inceptins. Using forward-genetic mapping of inceptin-induced plant responses, we identified a corresponding leucine-rich repeat receptor, termed INR, specific to select legume species and sufficient to confer inceptin-induced responses and enhanced defense against armyworms (Spodoptera exigua) in tobacco. Our results support the role of plant immune receptors in the perception of chewing herbivores and defense.
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Affiliation(s)
- Adam D Steinbrenner
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093;
- Department of Biology, University of Washington, Seattle, WA 98195
| | - Maria Muñoz-Amatriaín
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523
| | | | - Jessica Montserrat Aguilar-Venegas
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
- Laboratory of AgriGenomic Sciences, Escuela Nacional de Estudios Superiores Unidad Leon, Universidad Nacional Autonoma de Mexico, 37684 Leon, Mexico
| | - Sassoum Lo
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Satohiro Okuda
- Department for Botany and Plant Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Gaetan Glauser
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Julien Dongiovanni
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Da Shi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Marlo Hall
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Daniel Crubaugh
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Nicholas Holton
- The Sainsbury Laboratory, University of East Anglia, NR4 7UH Norwich, United Kingdom
| | - Cyril Zipfel
- The Sainsbury Laboratory, University of East Anglia, NR4 7UH Norwich, United Kingdom
- Department of Plant and Microbial Biology, Zürich-Basel Plant Science Center, University of Zürich, CH-8008 Zürich, Switzerland
| | - Ruben Abagyan
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Ted C J Turlings
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Timothy J Close
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Alisa Huffaker
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Eric A Schmelz
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093;
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Ono E, Mise K, Takano Y. RLP23 is required for Arabidopsis immunity against the grey mould pathogen Botrytis cinerea. Sci Rep 2020; 10:13798. [PMID: 32796867 PMCID: PMC7428006 DOI: 10.1038/s41598-020-70485-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/30/2020] [Indexed: 01/09/2023] Open
Abstract
Necrosis- and ethylene-inducing-like proteins (NLPs) are secreted by fungi, oomycetes and bacteria. Conserved nlp peptides derived from NLPs are recognized as pathogen-associated molecular patterns (PAMPs), leading to PAMP-triggered immune responses. RLP23 is the receptor of the nlp peptides in Arabidopsis thaliana; however, its actual contribution to plant immunity is unclear. Here, we report that RLP23 is required for Arabidopsis immunity against the necrotrophic fungal pathogen Botrytis cinerea. Arabidopsis rlp23 mutants exhibited enhanced susceptibility to B. cinerea compared with the wild-type plants. Notably, microscopic observation of the B. cinerea infection behaviour indicated the involvement of RLP23 in pre-invasive resistance to the pathogen. B. cinerea carried two NLP genes, BcNEP1 and BcNEP2; BcNEP1 was expressed preferentially before/during invasion into Arabidopsis, whereas BcNEP2 was expressed at the late phase of infection. Importantly, the nlp peptides derived from both BcNEP1 and BcNEP2 induced the production of reactive oxygen species in an RLP23-dependent manner. In contrast, another necrotrophic fungus Alternaria brassicicola did not express the NLP gene in the early infection phase and exhibited no enhanced virulence in the rlp23 mutants. Collectively, these results strongly suggest that RLP23 contributes to Arabidopsis pre-invasive resistance to B. cinerea via NLP recognition at the early infection phase.
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Affiliation(s)
- Erika Ono
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Kazuyuki Mise
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Yoshitaka Takano
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
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21
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Xu M, Liu CL, Fu Y, Liao ZW, Guo PY, Xiong R, Cheng Y, Wei SS, Huang JQ, Tang H. Molecular characterization and expression analysis of pitaya (Hylocereus polyrhizus) HpLRR genes in response to Neoscytalidium dimidiatum infection. BMC PLANT BIOLOGY 2020; 20:160. [PMID: 32293269 PMCID: PMC7161156 DOI: 10.1186/s12870-020-02368-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Canker disease caused by Neoscytalidium dimidiatum is a devastating disease resulting in a major loss to the pitaya industry. However, resistance proteins in plants play crucial roles to against pathogen infection. Among resistance proteins, the leucine-rich repeat (LRR) protein is a major family that plays crucial roles in plant growth, development, and biotic and abiotic stress responses, especially in disease defense. RESULTS In the present study, a transcriptomics analysis identified a total of 272 LRR genes, 233 of which had coding sequences (CDSs), in the plant pitaya (Hylocereus polyrhizus) in response to fungal Neoscytalidium dimidiatum infection. These genes were divided into various subgroups based on specific domains and phylogenetic analysis. Molecular characterization, functional annotation of proteins, and an expression analysis of the LRR genes were conducted. Additionally, four LRR genes (CL445.Contig4_All, Unigene28_All, CL28.Contig2_All, and Unigene2712_All, which were selected because they had the four longest CDSs were further assessed using quantitative reverse transcription PCR (qRT-PCR) at different fungal infection stages in different pitaya species (Hylocereus polyrhizus and Hylocereus undatus), in different pitaya tissues, and after treatment with salicylic acid (SA), methyl jasmonate (MeJA), and abscisic acid (ABA) hormones. The associated protein functions and roles in signaling pathways were identified. CONCLUSIONS This study provides a comprehensive overview of the HpLRR family genes at transcriptional level in pitaya in response to N. dimidiatum infection, it will be helpful to understand the molecular mechanism of pitaya canker disease, and lay a strong foundation for further research.
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Affiliation(s)
- Min Xu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Cheng-Li Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Yu Fu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Zhi-Wen Liao
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Pan-Yang Guo
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Rui Xiong
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Yu Cheng
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Shuang-Shuang Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Jia-Quan Huang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
| | - Hua Tang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, No.58 Renmin Avenue, Haikou, 570228 Hainan People’s Republic of China
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