51
|
Million CR, Wijeratne S, Karhoff S, Cassone BJ, McHale LK, Dorrance AE. Molecular mechanisms underpinning quantitative resistance to Phytophthora sojae in Glycine max using a systems genomics approach. FRONTIERS IN PLANT SCIENCE 2023; 14:1277585. [PMID: 38023885 PMCID: PMC10662313 DOI: 10.3389/fpls.2023.1277585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023]
Abstract
Expression of quantitative disease resistance in many host-pathogen systems is controlled by genes at multiple loci, each contributing a small effect to the overall response. We used a systems genomics approach to study the molecular underpinnings of quantitative disease resistance in the soybean-Phytophthora sojae pathosystem, incorporating expression quantitative trait loci (eQTL) mapping and gene co-expression network analysis to identify the genes putatively regulating transcriptional changes in response to inoculation. These findings were compared to previously mapped phenotypic (phQTL) to identify the molecular mechanisms contributing to the expression of this resistance. A subset of 93 recombinant inbred lines (RILs) from a Conrad × Sloan population were inoculated with P. sojae isolate 1.S.1.1 using the tray-test method; RNA was extracted, sequenced, and the normalized read counts were genetically mapped from tissue collected at the inoculation site 24 h after inoculation from both mock and inoculated samples. In total, more than 100,000 eQTLs were mapped. There was a switch from predominantly cis-eQTLs in the mock treatment to an almost entirely nonoverlapping set of predominantly trans-eQTLs in the inoculated treatment, where greater than 100-fold more eQTLs were mapped relative to mock, indicating vast transcriptional reprogramming due to P. sojae infection occurred. The eQTLs were organized into 36 hotspots, with the four largest hotspots from the inoculated treatment corresponding to more than 70% of the eQTLs, each enriched for genes within plant-pathogen interaction pathways. Genetic regulation of trans-eQTLs in response to the pathogen was predicted to occur through transcription factors and signaling molecules involved in plant-pathogen interactions, plant hormone signal transduction, and MAPK pathways. Network analysis identified three co-expression modules that were correlated with susceptibility to P. sojae and associated with three eQTL hotspots. Among the eQTLs co-localized with phQTLs, two cis-eQTLs with putative functions in the regulation of root architecture or jasmonic acid, as well as the putative master regulators of an eQTL hotspot nearby a phQTL, represent candidates potentially underpinning the molecular control of these phQTLs for resistance.
Collapse
Affiliation(s)
- Cassidy R. Million
- Department of Plant Pathology, The Ohio State University, Wooster, OH, United States
- Center for Soybean Research and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, United States
| | - Saranga Wijeratne
- Molecular and Cellular Imaging Center, The Ohio State University, Wooster, OH, United States
| | - Stephanie Karhoff
- Center for Soybean Research and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, United States
- Translational Plant Sciences Graduate Program, The Ohio State University, Columbus, OH, United States
| | - Bryan J. Cassone
- Center for Soybean Research and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, United States
- Department of Biology, Brandon University, Brandon, Manitoba, MB, Canada
| | - Leah K. McHale
- Center for Soybean Research and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, United States
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH, United States
| | - Anne E. Dorrance
- Department of Plant Pathology, The Ohio State University, Wooster, OH, United States
- Center for Soybean Research and Center for Applied Plant Sciences, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
52
|
He YH, Chen SY, Chen XY, Xu YP, Liang Y, Cai XZ. RALF22 promotes plant immunity and amplifies the Pep3 immune signal. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:2519-2534. [PMID: 37698076 DOI: 10.1111/jipb.13566] [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: 05/04/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023]
Abstract
Rapid alkalinization factors (RALFs) in plants have been reported to dampen pathogen-associated molecular pattern (PAMP)-triggered immunity via suppressing PAMP-induced complex formation between the pattern recognition receptor (PRR) and its co-receptor BAK1. However, the direct and positive role of RALFs in plant immunity remains largely unknown. Herein, we report the direct and positive roles of a typical RALF, RALF22, in plant immunity. RALF22 alone directly elicited a variety of typical immune responses and triggered resistance against the devastating necrotrophic fungal pathogen Sclerotinia sclerotiorum in a FERONIA (FER)-dependent manner. LORELEI (LRE)-like glycosylphosphatidylinositol (GPI)-anchored protein 1 (LLG1) and NADPH oxidase RBOHD were required for RALF22-elicited reactive oxygen species (ROS) generation. The mutation of cysteines conserved in the C terminus of RALFs abolished, while the constitutive formation of two disulfide bridges between these cysteines promoted the RALF22-elicited ROS production and resistance against S. sclerotiorum, demonstrating the requirement of these cysteines in the functions of RALF22 in plant immunity. Furthermore, RALF22 amplified the Pep3-induced immune signal by dramatically increasing the abundance of PROPEP3 transcript and protein. Supply with RALF22 induced resistance against S. sclerotiorum in Brassica crop plants. Collectively, our results reveal that RALF22 triggers immune responses and augments the Pep3-induced immune signal in a FER-dependent manner, and exhibits the potential to be exploited as an immune elicitor in crop protection.
Collapse
Affiliation(s)
- Yu-Han He
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
| | - Song-Yu Chen
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
| | - Xing-Yan Chen
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
| | - You-Ping Xu
- Centre of Analysis and Measurement, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
| | - Yan Liang
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
| | - Xin-Zhong Cai
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou, 310058, China
- Hainan Institute, Zhejiang University, Sanya, 572025, China
| |
Collapse
|
53
|
You X, Zhu S, Sheng H, Liu Z, Wang D, Wang M, Xu X, He F, Fang H, Zhang F, Wang D, Hao Z, Wang R, Xiao Y, Wan J, Wang GL, Ning Y. The rice peroxisomal receptor PEX5 negatively regulates resistance to rice blast fungus Magnaporthe oryzae. Cell Rep 2023; 42:113315. [PMID: 37862164 DOI: 10.1016/j.celrep.2023.113315] [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: 07/21/2022] [Revised: 08/22/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023] Open
Abstract
The receptor protein PEX5, an important component of peroxisomes, regulates growth, development, and immunity in yeast and mammals. PEX5 also influences growth and development in plants, but whether it participates in plant immunity has remained unclear. Here, we report that knockdown of OsPEX5 enhances resistance to the rice blast fungus Magnaporthe oryzae. We demonstrate that OsPEX5 interacts with the E3 ubiquitin ligase APIP6, a positive regulator of plant immunity. APIP6 ubiquitinates OsPEX5 in vitro and promotes its degradation in vivo via the 26S proteasome pathway. In addition, OsPEX5 interacts with the aldehyde dehydrogenase OsALDH2B1, which functions in growth-defense trade-offs in rice. OsPEX5 stabilizes OsALDH2B1 to enhance its repression of the defense-related gene OsAOS2. Our study thus uncovers a previously unrecognized hierarchical regulatory mechanism in which an E3 ubiquitin ligase targets a peroxisome receptor protein that negatively regulates immunity in rice by stabilizing an aldehyde dehydrogenase that suppresses defense gene expression.
Collapse
Affiliation(s)
- Xiaoman You
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shanshan Zhu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agriculture Sciences, Beijing 100081, China
| | - Haowen Sheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Zheng Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Dan Wang
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Min Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiao Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hong Fang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Debao Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zeyun Hao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yinghui Xiao
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Jianmin Wan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agriculture Sciences, Beijing 100081, China
| | - Guo-Liang Wang
- Department of Plant Pathology, The Ohio State University, Columbus, OH 43210, USA
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| |
Collapse
|
54
|
Li Q, Zhou M, Chhajed S, Yu F, Chen S, Zhang Y, Mou Z. N-hydroxypipecolic acid triggers systemic acquired resistance through extracellular NAD(P). Nat Commun 2023; 14:6848. [PMID: 37891163 PMCID: PMC10611778 DOI: 10.1038/s41467-023-42629-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Systemic acquired resistance (SAR) is a long-lasting broad-spectrum plant defense mechanism induced in distal systemic tissues by mobile signals generated at the primary infection site. Despite the discoveries of multiple potential mobile signals, how these signals cooperate to trigger downstream SAR signaling is unknown. Here, we show that endogenous extracellular nicotinamide adenine dinucleotide (phosphate) [eNAD(P)] accumulates systemically upon pathogen infection and that both eNAD(P) and the lectin receptor kinase (LecRK), LecRK-VI.2, are required in systemic tissues for the establishment of SAR. Moreover, putative mobile signals, e.g., N-hydroxypipecolic acid (NHP), trigger de novo systemic eNAD(P) accumulation largely through the respiratory burst oxidase homolog RBOHF-produced reactive oxygen species (ROS). Importantly, NHP-induced systemic immunity mainly depends on ROS, eNAD(P), LecRK-VI.2, and BAK1, indicating that NHP induces SAR primarily through the ROS-eNAD(P)-LecRK-VI.2/BAK1 signaling pathway. Our results suggest that mobile signals converge on eNAD(P) in systemic tissues to trigger SAR through LecRK-VI.2.
Collapse
Affiliation(s)
- Qi Li
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA
| | - Mingxi Zhou
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA
- Plant Molecular and Cellular Biology Program, University of Florida, P.O. Box 110690, Gainesville, FL, 32611, USA
| | - Shweta Chhajed
- Department of Biology, University of Florida, P.O. Box 118525, Gainesville, FL, 32611, USA
| | - Fahong Yu
- Interdisciplinary Center for Biotechnology Research, University of Florida, P.O. Box 103622, Gainesville, FL, 32610, USA
| | - Sixue Chen
- Department of Biology, University of Mississippi, Oxford, MS, 38677-1848, USA
| | - Yanping Zhang
- Interdisciplinary Center for Biotechnology Research, University of Florida, P.O. Box 103622, Gainesville, FL, 32610, USA
| | - Zhonglin Mou
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA.
- Plant Molecular and Cellular Biology Program, University of Florida, P.O. Box 110690, Gainesville, FL, 32611, USA.
| |
Collapse
|
55
|
Hassan A, Akram W, Rizwana H, Aftab ZEH, Hanif S, Anjum T, Alwahibi MS. The Imperative Use of Bacillus Consortium and Quercetin Contributes to Suppress Fusarium Wilt Disease by Direct Antagonism and Induced Resistance. Microorganisms 2023; 11:2603. [PMID: 37894261 PMCID: PMC10609423 DOI: 10.3390/microorganisms11102603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
Fusarium wilt diseases severely influence the growth and productivity of numerous crop plants. The consortium of antagonistic rhizospheric Bacillus strains and quercetin were evaluated imperatively as a possible remedy to effectively manage the Fusarium wilt disease of tomato plants. The selection of Bacillus strains was made based on in-vitro antagonistic bioassays against Fusarium oxysporum f.sp. lycoprsici (FOL). Quercetin was selected after screening a library of phytochemicals during in-silico molecular docking analysis using tomato LysM receptor kinases "SILKY12" based on its dual role in symbiosis and plant defense responses. After the selection of test materials, pot trials were conducted where tomato plants were provided consortium of Bacillus strains as soil drenching and quercetin as a foliar spray in different concentrations. The combined application of consortium (Bacillus velezensis strain BS6, Bacillus thuringiensis strain BS7, Bacillus fortis strain BS9) and quercetin (1.0 mM) reduced the Fusarium wilt disease index up to 69%, also resulting in increased plant growth attributes. Likewise, the imperative application of the Bacillus consortium and quercetin (1.0 mM) significantly increased total phenolic contents and activities of the enzymes of the phenylpropanoid pathway. Non-targeted metabolomics analysis was performed to investigate the perturbation in metabolites. FOL pathogen negatively affected a range of metabolites including carbohydrates, amino acids, phenylpropanoids, and organic acids. Thereinto, combined treatment of Bacillus consortium and quercetin (1.0 mM) ameliorated the production of different metabolites in tomato plants. These findings prove the imperative use of Bacillus consortium and quercetin as an effective and sustainable remedy to manage Fusarium wilt disease of tomato plants and to promote the growth of tomato plants under pathogen stress conditions.
Collapse
Affiliation(s)
- Ali Hassan
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan
| | - Waheed Akram
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan
| | - Humaira Rizwana
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11495, Saudi Arabia
| | - Zill-E-Huma Aftab
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan
| | - Sana Hanif
- School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
| | - Tehmina Anjum
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan
| | - Mona S Alwahibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11495, Saudi Arabia
| |
Collapse
|
56
|
Liu S, Liu R, Lv J, Feng Z, Wei F, Zhao L, Zhang Y, Zhu H, Feng H. The glycoside hydrolase 28 member VdEPG1 is a virulence factor of Verticillium dahliae and interacts with the jasmonic acid pathway-related gene GhOPR9. MOLECULAR PLANT PATHOLOGY 2023; 24:1238-1255. [PMID: 37401912 PMCID: PMC10502839 DOI: 10.1111/mpp.13366] [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: 02/21/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 07/05/2023]
Abstract
Glycoside hydrolase (GH) family members act as virulence factors and regulate plant immune responses during pathogen infection. Here, we characterized the GH28 family member endopolygalacturonase VdEPG1 in Verticillium dahliae. VdEPG1 acts as a virulence factor during V. dahliae infection. The expression level of VdEPG1 was greatly increased in V. dahliae inoculated on cotton roots. VdEPG1 suppressed VdNLP1-mediated cell death by modulating pathogenesis-related genes in Nicotiana benthamiana. Knocking out VdEPG1 led to a significant decrease in the pathogenicity of V. dahliae in cotton. The deletion strains were more susceptible to osmotic stress and the ability of V. dahliae to utilize carbon sources was deficient. In addition, the deletion strains lost the ability to penetrate cellophane membrane, with mycelia showing a disordered arrangement on the membrane, and spore development was affected. A jasmonic acid (JA) pathway-related gene, GhOPR9, was identified as interacting with VdEPG1 in the yeast two-hybrid system. The interaction was further confirmed by bimolecular fluorescence complementation and luciferase complementation imaging assays in N. benthamiana leaves. GhOPR9 plays a positive role in the resistance of cotton to V. dahliae by regulating JA biosynthesis. These results indicate that VdEPG1 may be able to regulate host immune responses as a virulence factor through modulating the GhOPR9-mediated JA biosynthesis.
Collapse
Affiliation(s)
- Shichao Liu
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
- Spice and Beverage Research InstituteChinese Academy of Tropical Agricultural SciencesWanningHainanChina
| | - Ruibing Liu
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
- Spice and Beverage Research InstituteChinese Academy of Tropical Agricultural SciencesWanningHainanChina
| | - Junyuan Lv
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
| | - Zili Feng
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
| | - Feng Wei
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
- Western Agricultural Research Center of Chinese Academy of Agricultural SciencesChinese Academy of Agricultural SciencesChangjiXinjiangChina
| | - Lihong Zhao
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
| | - Yalin Zhang
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
| | - Heqin Zhu
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
- Western Agricultural Research Center of Chinese Academy of Agricultural SciencesChinese Academy of Agricultural SciencesChangjiXinjiangChina
| | - Hongjie Feng
- National Key Laboratory of Cotton Bio‐breeding and Integrated UtilizationInstitute of Cotton Research of Chinese Academy of Agricultural SciencesAnyangHenanChina
- Western Agricultural Research Center of Chinese Academy of Agricultural SciencesChinese Academy of Agricultural SciencesChangjiXinjiangChina
| |
Collapse
|
57
|
Jeyaraj A, Elango T, Chen X, Zhuang J, Wang Y, Li X. Advances in understanding the mechanism of resistance to anthracnose and induced defence response in tea plants. MOLECULAR PLANT PATHOLOGY 2023; 24:1330-1346. [PMID: 37522519 PMCID: PMC10502868 DOI: 10.1111/mpp.13354] [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: 03/12/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 08/01/2023]
Abstract
The tea plant (Camellia sinensis) is susceptible to anthracnose disease that causes considerable crop loss and affects the yield and quality of tea. Multiple Colletotrichum spp. are the causative agents of this disease, which spreads quickly in warm and humid climates. During plant-pathogen interactions, resistant cultivars defend themselves against the hemibiotrophic pathogen by activating defence signalling pathways, whereas the pathogen suppresses plant defences in susceptible varieties. Various fungicides have been used to control this disease on susceptible plants, but these fungicide residues are dangerous to human health and cause fungicide resistance in pathogens. The problem-solving approaches to date are the development of resistant cultivars and ecofriendly biocontrol strategies to achieve sustainable tea cultivation and production. Understanding the infection stages of Colletotrichum, tea plant resistance mechanisms, and induced plant defence against Colletotrichum is essential to support sustainable disease management practices in the field. This review therefore summarizes the current knowledge of the identified causative agent of tea plant anthracnose, the infection strategies and pathogenicity of C. gloeosporioides, anthracnose disease resistance mechanisms, and the caffeine-induced defence response against Colletotrichum infection. The information reported in this review will advance our understanding of host-pathogen interactions and eventually help us to develop new disease control strategies.
Collapse
Affiliation(s)
- Anburaj Jeyaraj
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | | | - Xuan Chen
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Jing Zhuang
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Yuhua Wang
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| | - Xinghui Li
- College of HorticultureNanjing Agricultural UniversityNanjingChina
| |
Collapse
|
58
|
Wang J, Eulgem T. The Arabidopsis RRM domain proteins EDM3 and IBM2 coordinate the floral transition and basal immune responses. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:128-143. [PMID: 37347678 DOI: 10.1111/tpj.16364] [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: 01/19/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023]
Abstract
The transition from vegetative to reproductive development (floral transition) is a costly process in annual plants requiring increased investments in metabolic resources. The Arabidopsis thaliana (Arabidopsis) PHD finger protein EDM2 and RRM domain proteins EDM3 and IBM2 are known to form chromatin-associated complexes controlling transcript processing. We are reporting that distinct splice isoforms of EDM3 and IBM2 cooperate in the coordination of the floral transition with basal immune responses. These cooperating splice isoforms, termed EDM3L and IBM2L, control the intensity of basal immunity and, via a separate pathway, the timing of the floral transition. During the developmental phase prior to the floral transition expression of EDM3L and IBM2L strongly and gradually increases, while these isoforms simultaneously down-regulate expression of the floral suppressor gene FLC and promote the transition to reproductive growth. At the same time these accumulating EDM3 and IBM2 splice isoforms gradually suppress basal immunity against the virulent Noco2 isolate of the pathogenic oomycete Hyaloperonospora arabidopsidis and down-regulate expression of a set of defense-associated genes and immune receptor genes. We are providing clear evidence for a functional link between the floral transition and basal immunity in the annual plant Arabidopsis. Coordination of these two biological processes, which compete for metabolic resources, is likely critical for plant survival and reproductive success.
Collapse
Affiliation(s)
- Jianqiang Wang
- Department of Botany and Plant Sciences, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, California, USA
| | - Thomas Eulgem
- Department of Botany and Plant Sciences, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, California, USA
| |
Collapse
|
59
|
Giorni P, Zhang L, Bavaresco L, Lucini L, Battilani P. Metabolomics Insight into the Variety-Mediated Responses to Aspergillus carbonarius Infection in Grapevine Berries. ACS OMEGA 2023; 8:32352-32364. [PMID: 37720731 PMCID: PMC10500680 DOI: 10.1021/acsomega.3c01381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/03/2023] [Indexed: 09/19/2023]
Abstract
Limited knowledge regarding the susceptibility of grape varieties to ochratoxin A (OTA)-producing fungi is available to date. This study aimed to investigate the susceptibility of different grape varieties to Aspergillus carbonarius concerning OTA contamination and modulation at the metabolome level. Six grape varieties were selected, sampled at early veraison and ripening, artificially inoculated with A. carbonarius, and incubated at two temperature regimes. Significant differences were observed across cultivars, with Barbera showing the highest incidence of moldy berries (around 30%), while Malvasia and Ortrugo showed the lowest incidence (about 2%). OTA contamination was the lowest in Ortrugo and Malvasia, and the highest in Croatina, although it was not significantly different from Barbera, Merlot, and Sauvignon Blanc. Fungal development and mycotoxin production changed with grape variety; the sugar content in berries could also have played a role. Unsupervised multivariate statistical analysis from metabolomic fingerprints highlighted cultivar-specific responses, although a more generalized response was observed by supervised OPLS-DA modeling. An accumulation of nitrogen-containing compounds (alkaloids and glucosinolates), phenylpropanoids, and terpenoids, in addition to phytoalexins, was observed in all samples. A broader modulation of the metabolome was observed in white grapes, which were less contaminated by OTA. Jasmonates and oxylipins were identified as critical upstream modulators in metabolomic profiles. A direct correlation between the plant defense machinery and OTA was not observed, but the information was acquired and can contribute to optimizing preventive actions.
Collapse
Affiliation(s)
- Paola Giorni
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Leilei Zhang
- Department
for Sustainable Food Process, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Luigi Bavaresco
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Luigi Lucini
- Department
for Sustainable Food Process, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Paola Battilani
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| |
Collapse
|
60
|
Delannoy E, Batardiere B, Pateyron S, Soubigou-Taconnat L, Chiquet J, Colcombet J, Lang J. Cell specialization and coordination in Arabidopsis leaves upon pathogenic attack revealed by scRNA-seq. PLANT COMMUNICATIONS 2023; 4:100676. [PMID: 37644724 PMCID: PMC10504604 DOI: 10.1016/j.xplc.2023.100676] [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: 05/15/2023] [Revised: 07/24/2023] [Accepted: 08/24/2023] [Indexed: 08/31/2023]
Abstract
Plant defense responses involve several biological processes that allow plants to fight against pathogenic attacks. How these different processes are orchestrated within organs and depend on specific cell types is poorly known. Here, using single-cell RNA sequencing (scRNA-seq) technology on three independent biological replicates, we identified several cell populations representing the core transcriptional responses of wild-type Arabidopsis leaves inoculated with the bacterial pathogen Pseudomonas syringae DC3000. Among these populations, we retrieved major cell types of the leaves (mesophyll, guard, epidermal, companion, and vascular S cells) with which we could associate characteristic transcriptional reprogramming and regulators, thereby specifying different cell-type responses to the pathogen. Further analyses of transcriptional dynamics, on the basis of inference of cell trajectories, indicated that the different cell types, in addition to their characteristic defense responses, can also share similar modules of gene reprogramming, uncovering a ubiquitous antagonism between immune and susceptible processes. Moreover, it appears that the defense responses of vascular S cells, epidermal cells, and mesophyll cells can evolve along two separate paths, one converging toward an identical cell fate, characterized mostly by lignification and detoxification functions. As this divergence does not correspond to the differentiation between immune and susceptible cells, we speculate that this might reflect the discrimination between cell-autonomous and non-cell-autonomous responses. Altogether our data provide an upgraded framework to describe, explore, and explain the specialization and the coordination of plant cell responses upon pathogenic challenge.
Collapse
Affiliation(s)
- Etienne Delannoy
- Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France; Université Paris Cité, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France
| | - Bastien Batardiere
- UMR MIA Paris-Saclay, Université Paris-Saclay, AgroParisTech, INRAE, 91120 Palaiseau, France
| | - Stéphanie Pateyron
- Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France; Université Paris Cité, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France
| | - Ludivine Soubigou-Taconnat
- Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France; Université Paris Cité, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France
| | - Julien Chiquet
- UMR MIA Paris-Saclay, Université Paris-Saclay, AgroParisTech, INRAE, 91120 Palaiseau, France
| | - Jean Colcombet
- Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France; Université Paris Cité, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France
| | - Julien Lang
- Université Paris-Saclay, CNRS, INRAE, Université Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France; Université Paris Cité, CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), 91190 Gif sur Yvette, France.
| |
Collapse
|
61
|
Langin G, González-Fuente M, Üstün S. The Plant Ubiquitin-Proteasome System as a Target for Microbial Manipulation. ANNUAL REVIEW OF PHYTOPATHOLOGY 2023; 61:351-375. [PMID: 37253695 DOI: 10.1146/annurev-phyto-021622-110443] [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] [Indexed: 06/01/2023]
Abstract
The plant immune system perceives pathogens to trigger defense responses. In turn, pathogens secrete effector molecules to subvert these defense responses. The initiation and maintenance of defense responses involve not only de novo synthesis of regulatory proteins and enzymes but also their regulated degradation. The latter is achieved through protein degradation pathways such as the ubiquitin-proteasome system (UPS). The UPS regulates all stages of immunity, from the perception of the pathogen to the execution of the response, and, therefore, constitutes an ideal candidate for microbial manipulation of the host. Pathogen effector molecules interfere with the plant UPS through several mechanisms. This includes hijacking general UPS functions or perturbing its ability to degrade specific targets. In this review, we describe how the UPS regulates different immunity-related processes and how pathogens subvert this to promote disease.
Collapse
Affiliation(s)
- Gautier Langin
- Centre for Plant Molecular Biology (ZMBP), University of Tübingen, Tübingen, Germany;
- Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
| | | | - Suayib Üstün
- Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
| |
Collapse
|
62
|
Chathalingath N, Gunasekar A. Elucidating the physiological and molecular characteristics of bacterial blight incitant Xanthomonas auxonopodis pv. punicae; a life threatening phytopathogen of pomegranate (Punica granatum. L) and assessment of H 2O 2 accumulation during host-pathogen interaction. Microb Pathog 2023; 182:106277. [PMID: 37517744 DOI: 10.1016/j.micpath.2023.106277] [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: 05/02/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Bacterial blight of pomegranate caused by Xanthomonas auxonopodis pv.punicae (Xap) threaten the existence of a group of farmers for the past few decades who rely on pomegranate cultivation for their livelihood since it will cause huge yield loss. The primary focus of this study was to conduct a thorough analysis of the characterization of this blight incitant Xap. Physiological, biochemical, and molecular characteristics of six phytopathogenic strains of Xap, designated as PBF1 (PBF: Pomegranate Blight Fruit), PBF2, PBF3, PBF4, PBF5, and PBF6, isolated from the infected fruits were examined. Bacterial colonies were featured as gram-negative, yellow-pigmented circular with a glistening appearance. An attempt to determine the best culture medium, favouring bacterial proliferation was successfully done with four distinct medium, Nutrient Glucose Agar (NGA), Nutrient sucrose Agar (NSA), Yeast Dextrose Calcium Carbonate Agar (YDCA) and Yeast Glucose Calcium Carbonate Agar (YGCA) and comparatively, significant growth was found in NGA (66.66%) followed by YDCA (33%). According to the antibiotic susceptibility results, both ampicillin and streptomycin were determined as potentially effective drugs in preventing the proliferation of Xap (P 0.05). The reactive oxygen species-mediated plant immune response during host-pathogen interaction was confirmed by accessing the presence of H2O2 accumulation in infected leaves via 3,3 - diaminobenzidine (DAB) -staining technique. Bacterial isolates from this study were confirmed by two universal constitutive genes such as gyrB and 16S rRNA. From the BLAST analysis, the isolates were identified as Xap with base pair lengths of 1408bp, 1180bp, and 1159bp, which correspond to PBF1, PBF2, and PBF3, respectively. A neighbor-joining phylogenetic tree study explaining a strong phylogenetic relationship between the query sequence and closely related bacterial species.
Collapse
Affiliation(s)
- Nayana Chathalingath
- PG and Research Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore, 641029, Tamil Nadu, India
| | - Anbarasi Gunasekar
- PSGR Krishnammal College for Women, Department of Biotechnology, Coimbatore, 641004, Tamil Nadu, India.
| |
Collapse
|
63
|
Adero M, Tripathi JN, Oduor R, Zipfel C, Tripathi L. Transgenic expression of Arabidopsis ELONGATION FACTOR-TU RECEPTOR (AtEFR) gene in banana enhances resistance against Xanthomonas campestris pv. musacearum. PLoS One 2023; 18:e0290884. [PMID: 37656732 PMCID: PMC10473477 DOI: 10.1371/journal.pone.0290884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/18/2023] [Indexed: 09/03/2023] Open
Abstract
Banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pv. musacearum (Xcm) is a severe bacterial disease affecting banana production in East and Central Africa, where banana is cultivated as a staple crop. Classical breeding of banana is challenging because the crop is clonally propagated and has limited genetic diversity. Thus, genetic engineering serves as a viable alternative for banana improvement. Studies have shown that transfer of the elongation factor Tu receptor gene (AtEFR) from Arabidopsis thaliana to other plant species can enhance resistance against bacterial diseases. However, AtEFR activity in banana and its efficacy against Xcm has not been demonstrated. In this study, transgenic events of banana (Musa acuminata) cultivar dwarf Cavendish expressing the AtEFR gene were generated and evaluated for resistance against Xcm under greenhouse conditions. The transgenic banana events were responsive to the EF-Tu-derived elf18 peptide and exhibited enhanced resistance to BXW disease compared to non-transgenic control plants. This study suggests that the functionality of AtEFR is retained in banana with the potential of enhancing resistance to BXW under field conditions.
Collapse
Affiliation(s)
- Mark Adero
- International Institute of Tropical Agriculture (IITA), Nairobi, Kenya
- Kenyatta University, Nairobi, Kenya
| | | | | | - Cyril Zipfel
- Department of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, United Kingdom
| | - Leena Tripathi
- International Institute of Tropical Agriculture (IITA), Nairobi, Kenya
| |
Collapse
|
64
|
Paasch BC, Sohrabi R, Kremer JM, Nomura K, Cheng YT, Martz J, Kvitko B, Tiedje JM, He SY. A critical role of a eubiotic microbiota in gating proper immunocompetence in Arabidopsis. NATURE PLANTS 2023; 9:1468-1480. [PMID: 37591928 PMCID: PMC10505558 DOI: 10.1038/s41477-023-01501-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 07/27/2023] [Indexed: 08/19/2023]
Abstract
Although many studies have shown that microbes can ectopically stimulate or suppress plant immune responses, the fundamental question of whether the entire preexisting microbiota is indeed required for proper development of plant immune response remains unanswered. Using a recently developed peat-based gnotobiotic plant growth system, we found that Arabidopsis grown in the absence of a natural microbiota lacked age-dependent maturation of plant immune response and were defective in several aspects of pattern-triggered immunity. Axenic plants exhibited hypersusceptibility to infection by the bacterial pathogen Pseudomonas syringae pv. tomato DC3000 and the fungal pathogen Botrytis cinerea. Microbiota-mediated immunocompetence was suppressed by rich nutrient conditions, indicating a tripartite interaction between the host, microbiota and abiotic environment. A synthetic microbiota composed of 48 culturable bacterial strains from the leaf endosphere of healthy Arabidopsis plants was able to substantially restore immunocompetence similar to plants inoculated with a soil-derived community. In contrast, a 52-member dysbiotic synthetic leaf microbiota overstimulated the immune transcriptome. Together, these results provide evidence for a causal role of a eubiotic microbiota in gating proper immunocompetence and age-dependent immunity in plants.
Collapse
Affiliation(s)
- Bradley C Paasch
- Department of Biology, Duke University, Durham, NC, USA
- Howard Hughes Medical Institute, Duke University, Durham, NC, USA
| | - Reza Sohrabi
- Department of Biology, Duke University, Durham, NC, USA
- Howard Hughes Medical Institute, Duke University, Durham, NC, USA
| | - James M Kremer
- Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI, USA
| | - Kinya Nomura
- Department of Biology, Duke University, Durham, NC, USA
- Howard Hughes Medical Institute, Duke University, Durham, NC, USA
| | - Yu Ti Cheng
- Department of Biology, Duke University, Durham, NC, USA
- Howard Hughes Medical Institute, Duke University, Durham, NC, USA
| | - Jennifer Martz
- Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, MI, USA
| | - Brian Kvitko
- Department of Plant Pathology, University of Georgia, Athens, GA, USA
| | - James M Tiedje
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
| | - Sheng Yang He
- Department of Biology, Duke University, Durham, NC, USA.
- Howard Hughes Medical Institute, Duke University, Durham, NC, USA.
| |
Collapse
|
65
|
Wang X, Ye ZX, Wang YZ, Wang XJ, Chen JP, Huang HJ. Transcriptomic Analysis of Tobacco Plants in Response to Whitefly Infection. Genes (Basel) 2023; 14:1640. [PMID: 37628691 PMCID: PMC10454835 DOI: 10.3390/genes14081640] [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: 07/15/2023] [Revised: 08/09/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
The whitefly Bemisia tabaci is one of the most destructive pests worldwide, and causes tremendous economic losses. Tobacco Nicotiana tabacum serves as a model organism for studying fundamental biological processes and is severely damaged by whiteflies. Hitherto, our knowledge of how tobacco perceives and defends itself against whiteflies has been scare. In this study, we analyze the gene expression patterns of tobacco in response to whitefly infestation. A total of 244 and 2417 differentially expressed genes (DEGs) were identified at 12 h and 24 h post whitefly infestation, respectively. Enrichment analysis demonstrates that whitefly infestation activates plant defense at both time points, with genes involved in plant pattern recognition, transcription factors, and hormonal regulation significantly upregulated. Notably, defense genes are more intensely upregulated at 24 h post infestation than at 12 h, indicating an increased immunity induced by whitefly infestation. In contrast, genes associated with energy metabolism, carbohydrate metabolism, ribosomes, and photosynthesis are suppressed, suggesting impaired plant development. Taken together, our study provides comprehensive insights into how plants respond to phloem-feeding insects, and offers a theoretical basis for better research on plant-insect interactions.
Collapse
Affiliation(s)
- Xin Wang
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| | - Zhuang-Xin Ye
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| | - Yi-Zhe Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| | - Xiao-Jing Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| | - Jian-Ping Chen
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| | - Hai-Jian Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; (Z.-X.Y.); (Y.-Z.W.); (X.-J.W.)
| |
Collapse
|
66
|
Hou M, Cao Y, Zhang X, Zhang S, Jia T, Yang J, Han S, Wang L, Li J, Wang H, Zhang L, Wu X, Duan C, Li H. Genome-wide association study of maize resistance to Pythium aristosporum stalk rot. FRONTIERS IN PLANT SCIENCE 2023; 14:1239635. [PMID: 37662167 PMCID: PMC10470045 DOI: 10.3389/fpls.2023.1239635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/28/2023] [Indexed: 09/05/2023]
Abstract
Stalk rot, a severe and widespread soil-borne disease in maize, globally reduces yield and quality. Recent documentation reveals that Pythium aristosporum has emerged as one of the dominant causal agents of maize stalk rot. However, a previous study of maize stalk rot disease resistance mechanisms and breeding had mainly focused on other pathogens, neglecting P. aristosporum. To mitigate crop loss, resistance breeding is the most economical and effective strategy against this disease. This study involved characterizing resistance in 295 inbred lines using the drilling inoculation method and genotyping them via sequencing. By combining with population structure, disease resistance phenotype, and genome-wide association study (GWAS), we identified 39 significant single-nucleotide polymorphisms (SNPs) associated with P. aristosporum stalk rot resistance by utilizing six statistical methods. Bioinformatics analysis of these SNPs revealed 69 potential resistance genes, among which Zm00001d051313 was finally evaluated for its roles in host defense response to P. aristosporum infection. Through virus-induced gene silencing (VIGS) verification and physiological index determination, we found that transient silencing of Zm00001d051313 promoted P. aristosporum infection, indicating a positive regulatory role of this gene in maize's antifungal defense mechanism. Therefore, these findings will help advance our current understanding of the underlying mechanisms of maize defense to Pythium stalk rot.
Collapse
Affiliation(s)
- Mengwei Hou
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Yanyong Cao
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xingrui Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shulin Zhang
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Tengjiao Jia
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jiwei Yang
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Shengbo Han
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Lifeng Wang
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jingjing Li
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Hao Wang
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Lili Zhang
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xiaolin Wu
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Canxing Duan
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huiyong Li
- Institute of Cereal Crops, Henan Academy of Agricultural Sciences, Zhengzhou, China
| |
Collapse
|
67
|
Singh L, Sinha A, Gupta M, Xiao S, Hammond R, Rawat N. Wheat Pore-Forming Toxin-Like Protein Confers Broad-Spectrum Resistance to Fungal Pathogens in Arabidopsis. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2023; 36:489-501. [PMID: 36892820 DOI: 10.1094/mpmi-12-22-0247-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fusarium head blight (FHB), caused by the hemibiotrophic fungus Fusarium graminearum, is one of the major threats to global wheat productivity. A wheat pore-forming toxin-like (PFT) protein was previously reported to underlie Fhb1, the most widely used quantitative trait locus in FHB breeding programs worldwide. In the present work, wheat PFT was ectopically expressed in the model dicot plant Arabidopsis. Heterologous expression of wheat PFT in Arabidopsis provided a broad-spectrum quantitative resistance to fungal pathogens including F. graminearum, Colletotrichum higginsianum, Sclerotinia sclerotiorum, and Botrytis cinerea. However, there was no resistance to bacterial or oomycete pathogens Pseudomonas syringae and Phytophthora capsici, respectively in the transgenic Arabidopsis plants. To explore the reason for the resistance response to, exclusively, the fungal pathogens, purified PFT protein was hybridized to a glycan microarray having 300 different types of carbohydrate monomers and oligomers. It was found that PFT specifically hybridized with chitin monomer, N-acetyl glucosamine (GlcNAc), which is present in fungal cell walls but not in bacteria or oomycete species. This exclusive recognition of chitin may be responsible for the specificity of PFT-mediated resistance to fungal pathogens. Transfer of the atypical quantitative resistance of wheat PFT to a dicot system highlights its potential utility in designing broad-spectrum resistance in diverse host plants. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
Collapse
Affiliation(s)
- Lovepreet Singh
- Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, U.S.A
| | - Arunima Sinha
- Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, U.S.A
| | - Megha Gupta
- Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, U.S.A
| | - Shunyuan Xiao
- Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, U.S.A
- Institute for Bioscience and Biotechnology Research, Rockville, MD 20850, U.S.A
| | - Rosemarie Hammond
- Molecular Plant Pathology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705, U.S.A
| | - Nidhi Rawat
- Department of Plant Science and Landscape Architecture, University of Maryland College Park, MD 20742, U.S.A
| |
Collapse
|
68
|
Mazoyon C, Firmin S, Bensaddek L, Pecourt A, Chabot A, Faucon MP, Sarazin V, Dubois F, Duclercq J. Optimizing Crop Production with Bacterial Inputs: Insights into Chemical Dialogue between Sphingomonas sediminicola and Pisum sativum. Microorganisms 2023; 11:1847. [PMID: 37513019 PMCID: PMC10385058 DOI: 10.3390/microorganisms11071847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
The use of biological inputs is an interesting approach to optimize crop production and reduce the use of chemical inputs. Understanding the chemical communication between bacteria and plants is critical to optimizing this approach. Recently, we have shown that Sphingomonas (S.) sediminicola can improve both nitrogen supply and yield in pea. Here, we used biochemical methods and untargeted metabolomics to investigate the chemical dialog between S. sediminicola and pea. We also evaluated the metabolic capacities of S. sediminicola by metabolic profiling. Our results showed that peas release a wide range of hexoses, organic acids, and amino acids during their development, which can generally recruit and select fast-growing organisms. In the presence of S. sediminicola, a more specific pattern of these molecules took place, gradually adapting to the metabolic capabilities of the bacterium, especially for pentoses and flavonoids. In turn, S. sediminicola is able to produce several compounds involved in cell differentiation, biofilm formation, and quorum sensing to shape its environment, as well as several molecules that stimulate pea growth and plant defense mechanisms.
Collapse
Affiliation(s)
- Candice Mazoyon
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR7058 CNRS), Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
| | - Stéphane Firmin
- Agroécologie, Hydrogéochimie, Milieux et Ressources (AGHYLE, UP2018.C101) UniLaSalle, 60026 Beauvais, France
| | - Lamine Bensaddek
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR7058 CNRS), Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
| | - Audrey Pecourt
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR7058 CNRS), Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
- AgroStation, 68700 Aspach-le-Bas, France
| | - Amélie Chabot
- UFR des Sciences, Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
| | - Michel-Pierre Faucon
- Agroécologie, Hydrogéochimie, Milieux et Ressources (AGHYLE, UP2018.C101) UniLaSalle, 60026 Beauvais, France
| | | | - Fréderic Dubois
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR7058 CNRS), Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
| | - Jérôme Duclercq
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR7058 CNRS), Université de Picardie Jules Verne (UPJV), 80039 Amiens, France
| |
Collapse
|
69
|
Thatcher S, Jung M, Panangipalli G, Fengler K, Sanyal A, Li B, Llaca V, Habben J. The NLRomes of Zea mays NAM founder lines and Zea luxurians display presence-absence variation, integrated domain diversity, and mobility. MOLECULAR PLANT PATHOLOGY 2023; 24:742-757. [PMID: 36929631 PMCID: PMC10257044 DOI: 10.1111/mpp.13319] [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: 05/31/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 06/11/2023]
Abstract
Plant pathogens cause significant crop loss worldwide, and new resistance genes deployed to combat diseases can be overcome quickly. Understanding the existing resistance gene diversity within the germplasm of major crops, such as maize, is crucial for the development of new disease-resistant varieties. We analysed the nucleotide-binding leucine-rich repeat receptors (NLRs) of 26 recently sequenced diverse founder lines from the maize nested association mapping (NAM) population and compared them to the R gene complement present in a wild relative of maize, Zea luxurians. We found that NLRs in both species contain a large diversity of atypical integrated domains, including many domains that have not previously been found in the NLRs of other species. Additionally, the single Z. luxurians genome was found to have greater integrated atypical domain diversity than all 26 NAM founder lines combined, indicating that this species may represent a rich source of novel resistance genes. NLRs were also found to have very high sequence diversity and presence-absence variation among the NAM founder lines, with a large NLR cluster on Chr10 representing a diversity hotspot. Additionally, NLRs were shown to be mobile within maize genomes, with several putative interchromosomal translocations identified.
Collapse
|
70
|
Kettenburg AT, Lopez MA, Yogendra K, Prior MJ, Rose T, Bimson S, Heuer S, Roy SJ, Bailey-Serres J. PHOSPHORUS-STARVATION TOLERANCE 1 (OsPSTOL1) is prevalent in upland rice and enhances root growth and hastens low phosphate signaling in wheat. PLANT, CELL & ENVIRONMENT 2023; 46:2187-2205. [PMID: 36946067 DOI: 10.1111/pce.14588] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 03/07/2023] [Accepted: 03/19/2023] [Indexed: 06/08/2023]
Abstract
PHOSPHORUS-STARVATION TOLERANCE 1 (OsPSTOL1) is a variably present gene that benefits crown root growth and phosphorus (P) sufficiency in rice (Oryza sativa). To explore the ecophysiological importance of this gene, we performed a biogeographic survey of landraces and cultivars, confirming that functional OsPSTOL1 alleles prevail in low nutrient and drought-prone rainfed ecosystems, whereas loss-of-function and absence haplotypes predominate in control-irrigated paddy varieties of east Asia. An evolutionary history analysis of OsPSTOL1 and related genes in cereal, determined it and other genes are kinase-only domain derivatives of membrane-associated receptor like kinases. Finally, to evaluate the potential value of this kinase of unknown function in another Gramineae, wheat (Triticum aestivum) lines overexpressing OsPSTOL1 were evaluated under field and controlled low P conditions. OsPSTOL1 enhances growth, crown root number, and overall root plasticity under low P in wheat. Survey of root and shoot crown transcriptomes at two developmental stages identifies transcription factors that are differentially regulated in OsPSTOL1 wheat that are similarly controlled by the gene in rice. In wheat, OsPSTOL1 alters the timing and amplitude of regulators of root development in dry soils and hastens induction of the core P-starvation response. OsPSTOL1 and related genes may aid more sustainable cultivation of cereal crops.
Collapse
Affiliation(s)
- Alek T Kettenburg
- Botany and Plant Sciences Department, Center for Plant Cell Biology, University of California, Riverside, California, USA
| | - Miguel A Lopez
- Botany and Plant Sciences Department, Center for Plant Cell Biology, University of California, Riverside, California, USA
| | - Kalenahalli Yogendra
- School of Agriculture, Food and Wine & Waite Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- ARC Industrial Transformation Research Hub for Wheat in a Hot and Dry Climate, The University of Adelaide, Adelaide, South Australia, Australia
| | - Matthew J Prior
- Botany and Plant Sciences Department, Center for Plant Cell Biology, University of California, Riverside, California, USA
| | - Teresa Rose
- Department of Plant Science, Rothamsted Research, Harpenden, Hertfordshire, UK
| | - Sabrina Bimson
- Botany and Plant Sciences Department, Center for Plant Cell Biology, University of California, Riverside, California, USA
| | - Sigrid Heuer
- School of Agriculture, Food and Wine & Waite Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- Department of Plant Science, Rothamsted Research, Harpenden, Hertfordshire, UK
| | - Stuart J Roy
- School of Agriculture, Food and Wine & Waite Research Institute, The University of Adelaide, Adelaide, South Australia, Australia
- ARC Industrial Transformation Research Hub for Wheat in a Hot and Dry Climate, The University of Adelaide, Adelaide, South Australia, Australia
| | - Julia Bailey-Serres
- Botany and Plant Sciences Department, Center for Plant Cell Biology, University of California, Riverside, California, USA
| |
Collapse
|
71
|
Zhang Y, Tian H, Chen D, Zhang H, Sun M, Chen S, Qin Z, Ding Z, Dai S. Cysteine-rich receptor-like protein kinases: emerging regulators of plant stress responses. TRENDS IN PLANT SCIENCE 2023; 28:776-794. [PMID: 37105805 DOI: 10.1016/j.tplants.2023.03.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 03/26/2023] [Accepted: 03/31/2023] [Indexed: 06/17/2023]
Abstract
Cysteine-rich receptor-like kinases (CRKs) belong to a large DUF26-containing receptor-like kinase (RLK) family. They play key roles in immunity, abiotic stress response, and growth and development. How CRKs regulate diverse processes is a long-standing question. Recent studies have advanced our understanding of the molecular mechanisms underlying CRK functions in Ca2+ influx, reactive oxygen species (ROS) production, mitogen-activated protein kinase (MAPK) cascade activation, callose deposition, stomatal immunity, and programmed cell death (PCD). We review the CRK structure-function relationship with a focus on the roles of CRKs in immunity, the abiotic stress response, and the growth-stress tolerance tradeoff. We provide a critical analysis and synthesis of how CRKs control sophisticated regulatory networks that determine diverse plant phenotypic outputs.
Collapse
Affiliation(s)
- Yongxue Zhang
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China; Shanghai Key Laboratory of Protected Horticulture Technology, Horticultural Research Institute, Shanghai Academy of Agricultural Science, Shanghai 201403, China
| | - Haodong Tian
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Daniel Chen
- MD Program of Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Heng Zhang
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Meihong Sun
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Sixue Chen
- Department of Biology, The University of Mississippi, Oxford, MS 38677, USA
| | - Zhi Qin
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China.
| | - Zhaojun Ding
- Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China.
| | - Shaojun Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China.
| |
Collapse
|
72
|
Jiang J, Xie X, Li X. Acetyl-Proteomic Profiling of Sorghum bicolor Seedlings after Chitin Treatment Reveals the Involvement of Acetylated Chlorophyll a/b Binding Proteins in the Innate Immune Response. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37384550 DOI: 10.1021/acs.jafc.3c00700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Plant pathogen-associated molecular pattern-triggered immunity (PTI) is affected by post-translational modifications, but the role of acetylation in the PTI responses of Sorghum bicolor remains unclear. In this study, a comprehensive acetyl-proteomic analysis was performed on sorghum seedlings treated with chitin based on label-free protein quantification. Chitin rapidly induced 15 PTI-related genes and 5 defense enzymes. Acetylation was upregulated in sorghum after the chitin treatment, and 579, 895, and 929 acetylated proteins, peptides, and sites, respectively, were identified using high-performance liquid chromatography-tandem mass spectrometry. Acetylation and expression of chlorophyll a/b binding proteins (Lhcs) were significantly upregulated, and they were localized in chloroplasts. Additionally, we found that the expression of Lhcs in vivo enhanced chitin-mediated acetylation. The findings of this study provide a comprehensive assessment of the lysine acetylome in sorghum and a foundation for future study into the regulatory mechanisms of acetylation during chlorophyll synthesis.
Collapse
Affiliation(s)
- Junmei Jiang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| | - Xin Xie
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, P. R. China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P. R. China
| |
Collapse
|
73
|
Gogoi A, Lysøe E, Eikemo H, Stensvand A, Davik J, Brurberg MB. Comparative Transcriptome Analysis Reveals Novel Candidate Resistance Genes Involved in Defence against Phytophthora cactorum in Strawberry. Int J Mol Sci 2023; 24:10851. [PMID: 37446029 DOI: 10.3390/ijms241310851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Crown rot, caused by Phytophthora cactorum, is a devastating disease of strawberry. While most commercial octoploid strawberry cultivars (Fragaria × ananassa Duch) are generally susceptible, the diploid species Fragaria vesca is a potential source of resistance genes to P. cactorum. We previously reported several F. vesca genotypes with varying degrees of resistance to P. cactorum. To gain insights into the strawberry defence mechanisms, comparative transcriptome profiles of two resistant genotypes (NCGR1603 and Bukammen) and a susceptible genotype (NCGR1218) of F. vesca were analysed by RNA-Seq after wounding and subsequent inoculation with P. cactorum. Differential gene expression analysis identified several defence-related genes that are highly expressed in the resistant genotypes relative to the susceptible genotype in response to P. cactorum after wounding. These included putative disease resistance (R) genes encoding receptor-like proteins, receptor-like kinases, nucleotide-binding sites, leucine-rich repeat proteins, RPW8-type disease resistance proteins, and 'pathogenesis-related protein 1'. Seven of these R-genes were expressed only in the resistant genotypes and not in the susceptible genotype, and these appeared to be present only in the genomes of the resistant genotypes, as confirmed by PCR analysis. We previously reported a single major gene locus RPc-1 (Resistance to Phytophthora cactorum 1) in F. vesca that contributed resistance to P. cactorum. Here, we report that 4-5% of the genes (35-38 of ca 800 genes) in the RPc-1 locus are differentially expressed in the resistant genotypes compared to the susceptible genotype after inoculation with P. cactorum. In particular, we identified three defence-related genes encoding wall-associated receptor-like kinase 3, receptor-like protein 12, and non-specific lipid-transfer protein 1-like that were highly expressed in the resistant genotypes compared to the susceptible one. The present study reports several novel candidate disease resistance genes that warrant further investigation for their role in plant defence against P. cactorum.
Collapse
Affiliation(s)
- Anupam Gogoi
- Department of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), 1433 Ås, Norway
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| | - Erik Lysøe
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| | - Håvard Eikemo
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| | - Arne Stensvand
- Department of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), 1433 Ås, Norway
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| | - Jahn Davik
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| | - May Bente Brurberg
- Department of Plant Sciences, Faculty of Biosciences (BIOVIT), Norwegian University of Life Sciences (NMBU), 1433 Ås, Norway
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1433 Ås, Norway
| |
Collapse
|
74
|
Ji D, Liu W, Jiang L, Chen T. Cuticles and postharvest life of tomato fruit: A rigid cover for aerial epidermis or a multifaceted guard of freshness? Food Chem 2023; 411:135484. [PMID: 36682164 DOI: 10.1016/j.foodchem.2023.135484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 01/20/2023]
Abstract
Fruit cuticle is a specialized cell wall hydrophobic architecture covering the aerial surfaces of fruit, which forms the interface between the fruit and its environment. As a specialized seed-bearing organ, fruit utilize cuticles as physical barriers, water permeation regulator and resistance to pathogens, thus appealing extensive research interests for its potential values in developing postharvest freshness-keeping strategies. Here, we provide an overview for the composition and functions of fruit cuticles, mainly focusing on its functions in mechanical support, water permeability barrier and protection over pathogens, further introduce key mechanisms implicated in fruit cuticle biosynthesis. Moreover, currently available state-of-art techniques for examining compositional diversity and architecture of fruit are also compared.
Collapse
Affiliation(s)
- Dongchao Ji
- School of Life Sciences and Medicine, Shandong University of Technology, Xincun West Road 266, Zhangdian District, Zibo, Shandong 255049, China; Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Haidian District, Beijing 100093, China; University of Chinese Academy of Sciences, Yuquan Road 19(A), Shijingshan District, Beijing 100049, China
| | - Wei Liu
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Haidian District, Beijing 100093, China; University of Chinese Academy of Sciences, Yuquan Road 19(A), Shijingshan District, Beijing 100049, China
| | - Libo Jiang
- School of Life Sciences and Medicine, Shandong University of Technology, Xincun West Road 266, Zhangdian District, Zibo, Shandong 255049, China
| | - Tong Chen
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Haidian District, Beijing 100093, China; University of Chinese Academy of Sciences, Yuquan Road 19(A), Shijingshan District, Beijing 100049, China; Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, Nanxincun 20, Xiangshan, Haidian District, Beijing 100093, China.
| |
Collapse
|
75
|
Sun Y, Kou DR, Li Y, Ni JP, Wang J, Zhang YM, Wang QN, Jiang B, Wang X, Sun YX, Xu XT, Tan XJ, Zhang YJ, Kong XD. Pan-genome of Citrullus genus highlights the extent of presence/absence variation during domestication and selection. BMC Genomics 2023; 24:332. [PMID: 37322453 DOI: 10.1186/s12864-023-09443-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023] Open
Abstract
The rich genetic diversity in Citrullus lanatus and the other six species in the Citrullus genus provides important sources in watermelon breeding. Here, we present the Citrullus genus pan-genome based on the 400 Citrullus genus resequencing data, showing that 477 Mb contigs and 6249 protein-coding genes were absent in the Citrullus lanatus reference genome. In the Citrullus genus pan-genome, there are a total of 8795 (30.5%) genes that exhibit presence/absence variations (PAVs). Presence/absence variation (PAV) analysis showed that a lot of gene PAV were selected during the domestication and improvement, such as 53 favorable genes and 40 unfavorable genes were identified during the C. mucosospermus to C. lanatus landrace domestication. We also identified 661 resistance gene analogs (RGAs) in the Citrullus genus pan-genome, which contains 90 RGAs (89 variable and 1 core gene) located on the pangenome additional contigs. By gene PAV-based GWAS, 8 gene presence/absence variations were found associated with flesh color. Finally, based on the results of gene PAV selection analysis between watermelon populations with different fruit colors, we identified four non-reference candidate genes associated with carotenoid accumulation, which had a significantly higher frequency in the white flesh. These results will provide an important source for watermelon breeding.
Collapse
Affiliation(s)
- Yang Sun
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China.
| | - Dou-Rong Kou
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Yan Li
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
- Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | | | - Jing Wang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
- Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yong-Mei Zhang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Qing-Nan Wang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Bin Jiang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Xu Wang
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Yue-Xin Sun
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Xin-Tong Xu
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Xiao-Juan Tan
- Key Laboratory for Conservation and Use of Important Biological Resources of Anhui Province, Anhui Provincial Key Laboratory of Molecular Enzymology and Mechanism of Major Diseases, College of Life Sciences, Anhui Normal University, Wuhu, 241000, Anhui, China
| | - Yong-Jun Zhang
- Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | | |
Collapse
|
76
|
Chen A, Sun J, Viljoen A, Mostert D, Xie Y, Mangila L, Bothma S, Lyons R, Hřibová E, Christelová P, Uwimana B, Amah D, Pearce S, Chen N, Batley J, Edwards D, Doležel J, Crisp P, Brown AF, Martin G, Yahiaoui N, D'Hont A, Coin L, Swennen R, Aitken EAB. Genetic Mapping, Candidate Gene Identification and Marker Validation for Host Plant Resistance to the Race 4 of Fusarium oxysporum f. sp. cubense Using Musa acuminata ssp. malaccensis. Pathogens 2023; 12:820. [PMID: 37375510 DOI: 10.3390/pathogens12060820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Fusarium wilt of banana is a devastating disease that has decimated banana production worldwide. Host resistance to Fusarium oxysporum f. sp. Cubense (Foc), the causal agent of this disease, is genetically dissected in this study using two Musa acuminata ssp. Malaccensis segregating populations, segregating for Foc Tropical (TR4) and Subtropical (STR4) race 4 resistance. Marker loci and trait association using 11 SNP-based PCR markers allowed the candidate region to be delimited to a 12.9 cM genetic interval corresponding to a 959 kb region on chromosome 3 of 'DH-Pahang' reference assembly v4. Within this region, there was a cluster of pattern recognition receptors, namely leucine-rich repeat ectodomain containing receptor-like protein kinases, cysteine-rich cell-wall-associated protein kinases, and leaf rust 10 disease-resistance locus receptor-like proteins, positioned in an interspersed arrangement. Their transcript levels were rapidly upregulated in the resistant progenies but not in the susceptible F2 progenies at the onset of infection. This suggests that one or several of these genes may control resistance at this locus. To confirm the segregation of single-gene resistance, we generated an inter-cross between the resistant parent 'Ma850' and a susceptible line 'Ma848', to show that the STR4 resistance co-segregated with marker '28820' at this locus. Finally, an informative SNP marker 29730 allowed the locus-specific resistance to be assessed in a collection of diploid and polyploid banana plants. Of the 60 lines screened, 22 lines were predicted to carry resistance at this locus, including lines known to be TR4-resistant, such as 'Pahang', 'SH-3362', 'SH-3217', 'Ma-ITC0250', and 'DH-Pahang/CIRAD 930'. Additional screening in the International Institute for Tropical Agriculture's collection suggests that the dominant allele is common among the elite 'Matooke' NARITA hybrids, as well as in other triploid or tetraploid hybrids derived from East African highland bananas. Fine mapping and candidate gene identification will allow characterization of molecular mechanisms underlying the TR4 resistance. The markers developed in this study can now aid the marker-assisted selection of TR4 resistance in breeding programs around the world.
Collapse
Affiliation(s)
- Andrew Chen
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Jiaman Sun
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
- School of Life Science, Jiaying University, Meizhou 514015, China
| | - Altus Viljoen
- Department of Plant Pathology, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Diane Mostert
- Department of Plant Pathology, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Yucong Xie
- Department of Biology, Duke University, Durham, NC 27708-0338, USA
| | - Leroy Mangila
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Sheryl Bothma
- Department of Plant Pathology, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Rebecca Lyons
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Eva Hřibová
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Bio-Technological and Agricultural Research, CZ-77900 Olomouc, Czech Republic
| | - Pavla Christelová
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Bio-Technological and Agricultural Research, CZ-77900 Olomouc, Czech Republic
| | - Brigitte Uwimana
- International Institute of Tropical Agriculture, Kampala P.O. Box 7878, Uganda
| | - Delphine Amah
- International Institute of Tropical Agriculture, Ibadan PMB 5320, Nigeria
| | - Stephen Pearce
- Sustainable Soils and Crops, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK
| | - Ning Chen
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Jacqueline Batley
- School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia
| | - David Edwards
- School of Biological Sciences, The University of Western Australia, Perth, WA 6009, Australia
- The Centre for Applied Bioinformatics, University of Western Australia, Crawley, Perth, WA 6009, Australia
| | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Bio-Technological and Agricultural Research, CZ-77900 Olomouc, Czech Republic
| | - Peter Crisp
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Allan F Brown
- International Institute of Tropical Agriculture, Arusha P.O. Box 447, Tanzania
| | - Guillaume Martin
- CIRAD, UMR AGAP Institut, F-34398 Montpellier, France
- UMR AGAP Institut, Université de Montpellier, CIRAD, INRAE, Institut Agro, F-34398 Montpellier, France
| | - Nabila Yahiaoui
- CIRAD, UMR AGAP Institut, F-34398 Montpellier, France
- UMR AGAP Institut, Université de Montpellier, CIRAD, INRAE, Institut Agro, F-34398 Montpellier, France
| | - Angelique D'Hont
- CIRAD, UMR AGAP Institut, F-34398 Montpellier, France
- UMR AGAP Institut, Université de Montpellier, CIRAD, INRAE, Institut Agro, F-34398 Montpellier, France
| | - Lachlan Coin
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC 3004, Australia
| | - Rony Swennen
- International Institute of Tropical Agriculture, Kampala P.O. Box 7878, Uganda
- Division of Crop Biotechnics, Laboratory of Tropical Crop Improvement, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
| | - Elizabeth A B Aitken
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4067, Australia
| |
Collapse
|
77
|
Greenwood JR, Zhang X, Rathjen JP. Precision genome editing of crops for improved disease resistance. Curr Biol 2023; 33:R650-R657. [PMID: 37279695 DOI: 10.1016/j.cub.2023.04.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Genome editing (GE) technologies allow rapid trait manipulation in crop plants. Disease resistance is one of the best test cases for this technology because it is usually monogenic and under constant challenge by rapidly evolving pathogens. Classical methods suffer from severe bottlenecks in discovery of new resistance (R) genes and their incorporation into elite varieties, largely because they are identified in landraces and species with limited sexual compatibility, and may last only a few years before losing effectiveness. Most plant R genes encode receptors located externally on the plasma membrane (receptor proteins and receptor kinases) or internally as NOD-like receptors (NLR). Both have well defined molecular interactions with activating pathogen ligands which are virulence proteins known as effectors. As structural data for R-effector interactions accumulate, promising strategies for rational manipulation of binding specificities are emerging. This offers the potential to change elite varieties directly rather than through 10-20 years of crossing. Successful application of GE is already evident in mutation of susceptibility (S) genes required for infection. GE is in its infancy with only four modified organisms grown currently in the US. The Anglosphere and Japan seem more open to deployment of these technologies, with the European Union, Switzerland and New Zealand being notably more conservative. Consumers are not well informed on the differences between GE and classical genetic modification (GM). The possibility that minor GE changes will not be regulated as GM offers the hope that current bottlenecks to resistance breeding can be eased.
Collapse
Affiliation(s)
- Julian R Greenwood
- Research School of Biology, The Australian National University, 134 Linnaeus Way, Acton, ACT 2601, Australia
| | - Xiaoxiao Zhang
- Research School of Biology, The Australian National University, 134 Linnaeus Way, Acton, ACT 2601, Australia
| | - John P Rathjen
- Research School of Biology, The Australian National University, 134 Linnaeus Way, Acton, ACT 2601, Australia.
| |
Collapse
|
78
|
Cai L, Adelberg J, Naylor-Adelberg J, Schnabel G, Calle A, Li Z, Reighard G, Gasic K, Saski CA. Transcriptomics reveal the genetic coordination of early defense to Armillaria root rot (ARR) in Prunus spp. FRONTIERS IN PLANT SCIENCE 2023; 14:1181153. [PMID: 37332708 PMCID: PMC10274510 DOI: 10.3389/fpls.2023.1181153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/09/2023] [Indexed: 06/20/2023]
Abstract
Armillaria root rot (ARR) poses a significant threat to the long-term productivity of stone-fruit and nut crops in the predominant production area of the United States. To mitigate this issue, the development of ARR-resistant and horticulturally-acceptable rootstocks is a crucial step towards the maintenance of production sustainability. To date, genetic resistance to ARR has been found in exotic plum germplasm and a peach/plum hybrid rootstock, 'MP-29'. However, the widely-used peach rootstock Guardian® is susceptible to the pathogen. To understand the molecular defense mechanisms involved in ARR resistance in Prunus rootstocks, transcriptomic analyses of one susceptible and two resistant Prunus spp. were performed using two causal agents of ARR, including Armillaria mellea and Desarmillaria tabescens. The results of in vitro co-culture experiments revealed that the two resistant genotypes showed different temporal response dynamics and fungus-specific responses, as seen in the genetic response. Gene expression analysis over time indicated an enrichment of defense-related ontologies, including glucosyltransferase activity, monooxygenase activity, glutathione transferase activity, and peroxidase activity. Differential gene expression and co-expression network analysis highlighted key hub genes involved in the sensing and enzymatic degradation of chitin, GSTs, oxidoreductases, transcription factors, and biochemical pathways likely involved in Armillaria resistance. These data provide valuable resources for the improvement of ARR resistance in Prunus rootstocks through breeding.
Collapse
|
79
|
Ramos RN, Zhang N, Lauff DB, Valenzuela-Riffo F, Figueroa CR, Martin GB, Pombo MA, Rosli HG. Loss-of-function mutations in WRKY22 and WRKY25 impair stomatal-mediated immunity and PTI and ETI responses against Pseudomonas syringae pv. tomato. PLANT MOLECULAR BIOLOGY 2023:10.1007/s11103-023-01358-0. [PMID: 37226022 DOI: 10.1007/s11103-023-01358-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/27/2023] [Indexed: 05/26/2023]
Abstract
Plants defend themselves against pathogens using a two-layered immune system. The first response, pattern-triggered immunity (PTI), is activated upon recognition of microbe-associated molecular patterns (MAMPs). Virulent bacteria such as Pseudomonas syringae pv. tomato (Pst), deliver effector proteins into the plant cell to promote susceptibility. However, some plants possess resistance (R) proteins that recognize specific effectors leading to the activation of the second response, effector-triggered immunity (ETI). Resistant tomatoes such as Río Grande-PtoR recognize two Pst effectors (AvrPto and AvrPtoB) through the host Pto/Prf complex and activate ETI. We previously showed that the transcription factors (TF) WRKY22 and WRKY25 are positive regulators of plant immunity against bacterial and potentially non-bacterial pathogens in Nicotiana benthamiana. Here, the CRISPR-Cas9 technique was used to develop three knockout tomato lines for either one or both TFs. The single and double mutants were all compromised in Pto/Prf-mediated ETI and had a weaker PTI response. The stomata apertures in all of the mutant lines did not respond to darkness or challenge with Pst DC3000. The WRKY22 and WRKY25 proteins both localize in the nucleus, but we found no evidence of a physical interaction between them. The WRKY22 TF was found to be involved in the transcriptional regulation of WRKY25, supporting the idea that they are not functionally redundant. Together, our results indicate that both WRKY TFs play a role in modulating stomata and are positive regulators of plant immunity in tomato.
Collapse
Affiliation(s)
- Romina N Ramos
- Instituto de Fisiología Vegetal, INFIVE, Universidad Nacional de La Plata, CONICET, La Plata, Buenos Aires, Argentina
| | - Ning Zhang
- Boyce Thompson Institute for Plant Research, 533 Tower Road, Ithaca, NY, 14853, USA
| | - Diana B Lauff
- Instituto de Fisiología Vegetal, INFIVE, Universidad Nacional de La Plata, CONICET, La Plata, Buenos Aires, Argentina
| | - Felipe Valenzuela-Riffo
- Laboratory of Plant Molecular Physiology, Institute of Biological Sciences, Campus Talca, Universidad de Talca, Talca, Chile
- Millenium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Chile
| | - Carlos R Figueroa
- Laboratory of Plant Molecular Physiology, Institute of Biological Sciences, Campus Talca, Universidad de Talca, Talca, Chile
- Millenium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Chile
| | - Gregory B Martin
- Boyce Thompson Institute for Plant Research, 533 Tower Road, Ithaca, NY, 14853, USA
- Section of Plant Pathology and Plant-Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Marina A Pombo
- Instituto de Fisiología Vegetal, INFIVE, Universidad Nacional de La Plata, CONICET, La Plata, Buenos Aires, Argentina.
| | - Hernan G Rosli
- Instituto de Fisiología Vegetal, INFIVE, Universidad Nacional de La Plata, CONICET, La Plata, Buenos Aires, Argentina
| |
Collapse
|
80
|
Chen X, Xu Q, Yue Y, Duan Y, Liu H, Chen X, Huang J, Zheng L. Comparative oxidation proteomics analyses suggest redox regulation of cytosolic translation in rice leaves upon Magnaporthe oryzae infection. PLANT COMMUNICATIONS 2023; 4:100550. [PMID: 36654509 DOI: 10.1016/j.xplc.2023.100550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 12/28/2022] [Accepted: 01/13/2023] [Indexed: 05/11/2023]
Abstract
Pathogen attack can increase plant levels of reactive oxygen species (ROS), which act as signaling molecules to activate plant defense mechanisms. Elucidating these processes is crucial for understanding redox signaling pathways in plant defense responses. Using an iodo-tandem mass tag (TMT)-based quantitative proteomics approach, we mapped 3362 oxidized cysteine sites in 2275 proteins in rice leaves. Oxidized proteins were involved in gene expression, peptide biosynthetic processes, stress responses, ROS metabolic processes, and translation pathways. Magnaporthe oryzae infection led to increased oxidative modification levels of 512 cysteine sites in 438 proteins, including many transcriptional regulators and ribosomal proteins. Ribosome profiling (Ribo-seq) analysis revealed that the oxidative modification of ribosomal proteins promoted the translational efficiency of many mRNAs involved in defense response pathways, thereby affecting rice immunity. Our results suggest that increased oxidative modification of ribosomal proteins in rice leaves promotes cytosolic translation, thus revealing a novel function of post-translational modifications. Furthermore, the oxidation-sensitive proteins identified here provide a valuable resource for research on protein redox regulation and can guide future mechanistic studies.
Collapse
Affiliation(s)
- Xiaoyang Chen
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Qiutao Xu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Yaping Yue
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuhang Duan
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hao Liu
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaolin Chen
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Junbin Huang
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lu Zheng
- State Key Laboratory of Agricultural Microbiology/Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
81
|
Guo J, Mou Y, Li Y, Yang Q, Wang X, Lin H, Kang Z, Guo J. Silencing a Chitinase Gene, PstChia1, Reduces Virulence of Puccinia striiformis f. sp. tritici. Int J Mol Sci 2023; 24:ijms24098215. [PMID: 37175921 PMCID: PMC10179651 DOI: 10.3390/ijms24098215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/28/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
Chitin is the main component of fungal cell walls, which can be recognized by pattern recognition receptors (PRRs) as pathogen-associated molecular patterns (PAMP). Chitinase in filamentous fungi has been reported to degrade immunogenic chitin oligomers, thereby preventing chitin-induced immune activation. In this study, we identified the chitinase families in 10 fungal genomes. A total of 131 chitinase genes were identified. Among the chitinase families, 16 chitinase genes from Puccinia striiformis f. sp. tritici (Pst) were identified, and the expression of PstChia1 was the highest during Pst infection. Further studies indicated that PstChia1 is highly induced during the early stages of the interaction of wheat and Pst and has chitinase enzyme activity. The silencing of PstChia1 revealed that PstChia1 limited the growth and reduced the virulence of Pst. The expression level of TaPR1 and TaPR2 was induced in PstChia1 knockdown plants, suggesting that PstChia1 is involved in regulating wheat resistance to Pst. Our data suggest that PstChia1 contributes to pathogenicity by interfering with plant immunity and regulating the growth of Pst.
Collapse
Affiliation(s)
- Jia Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Ying Mou
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Yuanxing Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Qing Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Xue Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Haocheng Lin
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Jun Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| |
Collapse
|
82
|
Yeo IC, de Azevedo Manhaes AME, Liu J, Avila J, He P, Devarenne TP. An unexpected role for tomato threonine deaminase 2 in host defense against bacterial infection. PLANT PHYSIOLOGY 2023; 192:527-545. [PMID: 36530164 PMCID: PMC10152684 DOI: 10.1093/plphys/kiac584] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 05/03/2023]
Abstract
The hormones salicylic acid (SA) and jasmonic acid (JA) often act antagonistically in controlling plant defense pathways in response to hemibiotrophs/biotrophs (hemi/biotroph) and herbivores/necrotrophs, respectively. Threonine deaminase (TD) converts threonine to α-ketobutyrate and ammonia as the committed step in isoleucine (Ile) biosynthesis and contributes to JA responses by producing the Ile needed to make the bioactive JA-Ile conjugate. Tomato (Solanum lycopersicum) plants have two TD genes: TD1 and TD2. A defensive role for TD2 against herbivores has been characterized in relation to JA-Ile production. However, it remains unknown whether TD2 is also involved in host defense against bacterial hemi/biotrophic and necrotrophic pathogens. Here, we show that in response to the bacterial pathogen-associated molecular pattern (PAMP) flagellin flg22 peptide, an activator of SA-based defense responses, TD2 activity is compromised, possibly through carboxy-terminal cleavage. TD2 knockdown (KD) plants showed increased resistance to the hemibiotrophic bacterial pathogen Pseudomonas syringae but were more susceptible to the necrotrophic fungal pathogen Botrytis cinerea, suggesting TD2 plays opposite roles in response to hemibiotrophic and necrotrophic pathogens. This TD2 KD plant differential response to different pathogens is consistent with SA- and JA-regulated defense gene expression. flg22-treated TD2 KD plants showed high expression levels of SA-responsive genes, whereas TD2 KD plants treated with the fungal PAMP chitin showed low expression levels of JA-responsive genes. This study indicates TD2 acts negatively in defense against hemibiotrophs and positively against necrotrophs and provides insight into a new TD2 function in the elaborate crosstalk between SA and JA signaling induced by pathogen infection.
Collapse
Affiliation(s)
- In-Cheol Yeo
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA
| | | | - Jun Liu
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA
| | - Julian Avila
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA
| | - Ping He
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA
| | - Timothy P Devarenne
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843, USA
| |
Collapse
|
83
|
Umer MJ, Zheng J, Yang M, Batool R, Abro AA, Hou Y, Xu Y, Gebremeskel H, Wang Y, Zhou Z, Cai X, Liu F, Zhang B. Insights to Gossypium defense response against Verticillium dahliae: the Cotton Cancer. Funct Integr Genomics 2023; 23:142. [PMID: 37121989 DOI: 10.1007/s10142-023-01065-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/15/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023]
Abstract
The soil-borne pathogen Verticillium dahliae, also referred as "The Cotton Cancer," is responsible for causing Verticillium wilt in cotton crops, a destructive disease with a global impact. To infect cotton plants, the pathogen employs multiple virulence mechanisms such as releasing enzymes that degrade cell walls, activating genes that contribute to virulence, and using protein effectors. Conversely, cotton plants have developed numerous defense mechanisms to combat the impact of V. dahliae. These include strengthening the cell wall by producing lignin and depositing callose, discharging reactive oxygen species, and amassing hormones related to defense. Despite the efforts to develop resistant cultivars, there is still no permanent solution to Verticillium wilt due to a limited understanding of the underlying molecular mechanisms that drive both resistance and pathogenesis is currently prevalent. To address this challenge, cutting-edge technologies such as clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9), host-induced gene silencing (HIGS), and gene delivery via nano-carriers could be employed as effective alternatives to control the disease. This article intends to present an overview of V. dahliae virulence mechanisms and discuss the different cotton defense mechanisms against Verticillium wilt, including morphophysiological and biochemical responses and signaling pathways including jasmonic acid (JA), salicylic acid (SA), ethylene (ET), and strigolactones (SLs). Additionally, the article highlights the significance of microRNAs (miRNAs), circular RNAs (circRNAs), and long non-coding RNAs (lncRNAs) in gene expression regulation, as well as the different methods employed to identify and functionally validate genes to achieve resistance against this disease. Gaining a more profound understanding of these mechanisms could potentially result in the creation of more efficient strategies for combating Verticillium wilt in cotton crops.
Collapse
Affiliation(s)
- Muhammad Jawad Umer
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Jie Zheng
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China
| | - Mengying Yang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Raufa Batool
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Aamir Ali Abro
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yuqing Hou
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Yanchao Xu
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Haileslassie Gebremeskel
- Mehoni Agricultural Research Center, Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia
| | - Yuhong Wang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - ZhongLi Zhou
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Xiaoyan Cai
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University/Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, China
| | - Fang Liu
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
- Hainan Yazhou Bay Seed Laboratory, China/National Nanfan, Research Institute of Chinese Academy of Agricultural Sciences, Sanya, 572025, China.
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China.
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University/Institute of Cotton Research, Chinese Academy of Agricultural Science, Anyang, China.
| | - Baohong Zhang
- State Key Laboratory of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
- Department of Biology, East Carolina University, Greenville, NC, 27858, USA.
| |
Collapse
|
84
|
Rudd JJ. Effector-mediated partial and nonhost disease resistance in wheat. THE NEW PHYTOLOGIST 2023; 238:1340-1342. [PMID: 36999944 DOI: 10.1111/nph.18872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Affiliation(s)
- Jason J Rudd
- Protecting Crops and the Environment, Rothamsted Research, West Common, Harpenden, AL5 2JQ, UK
| |
Collapse
|
85
|
Chen C, Zhao Y, Tabor G, Nian H, Phillips J, Wolters P, Yang Q, Balint-Kurti P. A leucine-rich repeat receptor kinase gene confers quantitative susceptibility to maize southern leaf blight. THE NEW PHYTOLOGIST 2023; 238:1182-1197. [PMID: 36721267 DOI: 10.1111/nph.18781] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Southern leaf blight (SLB), caused by the necrotrophic fungal pathogen Cochliobolus heterostrophus (anamorph Bipolaris maydis), is a major foliar disease which causes significant yield losses in maize worldwide. A major quantitative trait locus, qSLB3.04 , conferring recessive resistance to SLB was previously mapped on maize chromosome 3. Using a combination of map-based cloning, association analysis, ethyl methanesulfonate and transposon mutagenesis, and CRISPR-Cas9 editing, we demonstrate that a leucine-rich repeat receptor-like kinase gene which we have called ChSK1 (Cochliobolus heterostrophus Susceptibility Kinase 1) at qSLB3.04 causes increased susceptibility to SLB. Genes of this type have generally been associated with the defense response. We present evidence that ChSK1 may be associated with suppression of the basal immune response. These findings contribute to our understanding of plant disease susceptibility genes and the potential to use them for engineering durable disease resistance.
Collapse
Affiliation(s)
- Chuan Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yaqi Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Girma Tabor
- Corteva Agriscience™, Johnston, IA, 50131, USA
| | - Huiqin Nian
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | | | | | - Qin Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Peter Balint-Kurti
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, 27695, USA
- Plant Science Research Unit, USDA-ARS, Raleigh, NC, 27695, USA
| |
Collapse
|
86
|
Wang F, Song W, Huang C, Wei Z, Li Y, Chen J, Zhang H, Sun Z. A Rice Receptor-like Protein Negatively Regulates Rice Resistance to Southern Rice Black-Streaked Dwarf Virus Infection. Viruses 2023; 15:v15040973. [PMID: 37112953 PMCID: PMC10141149 DOI: 10.3390/v15040973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Plants rely on various receptor-like proteins and receptor-like kinases to recognize and defend against invading pathogens. However, research on the role of receptor-like proteins in plant antiviral defense, particularly in rice-virus interactions, is limited. In this study, we identified a receptor-like gene, OsBAP1, which was significantly induced upon infection with southern rice black-streaked dwarf virus (SRBSDV) infection. A viral inoculation assay showed that the OsBAP1 knockout mutant exhibited enhanced resistance to SRBSDV infection, indicating that OsBAP1 plays a negatively regulated role in rice resistance to viral infection. Transcriptome analysis revealed that the genes involved in plant-pathogen interactions, plant hormone signal transduction, oxidation-reduction reactions, and protein phosphorylation pathways were significantly enriched in OsBAP1 mutant plants (osbap1-cas). Quantitative real-time PCR (RT-qPCR) analysis further demonstrated that some defense-related genes were significantly induced during SRBSDV infection in osbap1-cas mutants. Our findings provide new insights into the role of receptor-like proteins in plant immune signaling pathways, and demonstrate that OsBAP1 negatively regulates rice resistance to SRBSDV infection.
Collapse
Affiliation(s)
- Fengmin Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Weiqi Song
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Chaorui Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Zhongyan Wei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Yanjun Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Jianping Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Hehong Zhang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Zongtao Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| |
Collapse
|
87
|
Song J, Chen F, Lv B, Guo C, Yang J, Huang L, Guo J, Xiang F. Genome-Wide Identification and Expression Analysis of the TIR-NBS-LRR Gene Family and Its Response to Fungal Disease in Rose (Rosa chinensis). BIOLOGY 2023; 12:biology12030426. [PMID: 36979118 PMCID: PMC10045381 DOI: 10.3390/biology12030426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023]
Abstract
Roses, which are one of the world’s most important ornamental plants, are often damaged by pathogens, resulting in serious economic losses. As a subclass of the disease resistance gene family of plant nucleotide-binding oligomerization domain (NOD)-like receptors, TIR-NBS-LRR (TNL) genes play a vital role in identifying pathogen effectors and activating defense responses. However, a systematic analysis of the TNL gene family is rarely reported in roses. Herein, 96 intact TNL genes were identified in Rosa chinensis. Their phylogenies, physicochemical characteristics, gene structures, conserved domains and motifs, promoter cis-elements, microRNA binding sites, and intra- and interspecific collinearity relationships were analyzed. An expression analysis using transcriptome data revealed that RcTNL genes were dominantly expressed in leaves. Some RcTNL genes responded to gibberellin, jasmonic acid, salicylic acid, Botrytis cinerea, Podosphaera pannosa, and Marssonina rosae (M. rosae); the RcTNL23 gene responded significantly to three hormones and three pathogens, and exhibited an upregulated expression. Furthermore, the black spot pathogen was identified as M. rosae. After inoculating rose leaves, an expression pattern analysis of the RcTNL genes suggested that they act during different periods of pathogen infection. The present study lays the foundations for an in-depth investigation of the TNL gene function and the mining of disease resistance genes in roses.
Collapse
|
88
|
Hong X, Qi F, Wang R, Jia Z, Lin F, Yuan M, Xin XF, Liang Y. Ascorbate peroxidase 1 allows monitoring of cytosolic accumulation of effector-triggered reactive oxygen species using a luminol-based assay. PLANT PHYSIOLOGY 2023; 191:1416-1434. [PMID: 36461917 PMCID: PMC9922408 DOI: 10.1093/plphys/kiac551] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 11/04/2022] [Accepted: 12/02/2022] [Indexed: 05/06/2023]
Abstract
Biphasic production of reactive oxygen species (ROS) has been observed in plants treated with avirulent bacterial strains. The first transient peak corresponds to pattern-triggered immunity (PTI)-ROS, whereas the second long-lasting peak corresponds to effector-triggered immunity (ETI)-ROS. PTI-ROS are produced in the apoplast by plasma membrane-localized NADPH oxidases, and the recognition of an avirulent effector increases the PTI-ROS regulatory module, leading to ETI-ROS accumulation in the apoplast. However, how apoplastic ETI-ROS signaling is relayed to the cytosol is still unknown. Here, we found that in the absence of cytosolic ascorbate peroxidase 1 (APX1), the second phase of ETI-ROS accumulation was undetectable in Arabidopsis (Arabidopsis thaliana) using luminol-based assays. In addition to being a scavenger of cytosolic H2O2, we discovered that APX1 served as a catalyst in this chemiluminescence ROS assay by employing luminol as an electron donor. A horseradish peroxidase (HRP)-mimicking APX1 mutation (APX1W41F) further enhanced its catalytic activity toward luminol, whereas an HRP-dead APX1 mutation (APX1R38H) reduced its luminol oxidation activity. The cytosolic localization of APX1 implies that ETI-ROS might accumulate in the cytosol. When ROS were detected using a fluorescent dye, green fluorescence was observed in the cytosol 6 h after infiltration with an avirulent bacterial strain. Collectively, these results indicate that ETI-ROS eventually accumulate in the cytosol, and cytosolic APX1 catalyzes luminol oxidation and allows monitoring of the kinetics of ETI-ROS in the cytosol. Our study provides important insights into the spatial dynamics of ROS accumulation in plant immunity.
Collapse
Affiliation(s)
- Xiufang Hong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Fan Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ran Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Zhiyi Jia
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Fucheng Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Minhang Yuan
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiu-Fang Xin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yan Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
89
|
Kumar R, Dasgupta I. Geminiviral C4/AC4 proteins: An emerging component of the viral arsenal against plant defence. Virology 2023; 579:156-168. [PMID: 36693289 DOI: 10.1016/j.virol.2023.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 12/26/2022] [Accepted: 01/08/2023] [Indexed: 01/12/2023]
Abstract
Virus infection triggers a plethora of defence reactions in plants to incapacitate the intruder. Viruses, in turn, have added additional functions to their genes so that they acquire capabilities to neutralize the above defence reactions. In plant-infecting viruses, the family Geminiviridae comprises members, majority of whom encode 6-8 genes in their small single-stranded DNA genomes. Of the above genes, one which shows the most variability in its amino acid sequence is the C4/AC4. Recent studies have uncovered evidence, which point towards a wide repertoire of functions performed by C4/AC4 revealing its role as a major player in suppressing plant defence. This review summarizes the various plant defence mechanisms against viruses and highlights how C4/AC4 has evolved to counter most of them.
Collapse
Affiliation(s)
- Rohit Kumar
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India
| | - Indranil Dasgupta
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021, India.
| |
Collapse
|
90
|
Jeon HS, Jang E, Kim J, Kim SH, Lee MH, Nam MH, Tobimatsu Y, Park OK. Pathogen-induced autophagy regulates monolignol transport and lignin formation in plant immunity. Autophagy 2023; 19:597-615. [PMID: 35652914 PMCID: PMC9851231 DOI: 10.1080/15548627.2022.2085496] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The evolutionary plant-pathogen arms race has equipped plants with the immune system that can defend against pathogens. Pattern-triggered immunity and effector-triggered immunity are two major branches of innate immunity that share immune responses, including oxidative bursts, transcriptional reprogramming, and cell wall modifications such as lignin deposition. In a previous study, we reported that lignin rapidly accumulates in pathogen-infected Arabidopsis leaves and acts as a mechanical barrier, spatially restricting pathogens and cell death. Lignin deposition into the cell wall is a three-step process: monolignol biosynthesis, transport, and polymerization. While monolignol biosynthesis and polymerization are relatively well understood, the mechanism of monolignol transport remains unclear. In this study, we show that macroautophagy/autophagy modulates pathogen-induced lignin formation. Lignification and other immune responses were impaired in autophagy-defective atg (autophagy-related) mutants. In microscopy analyses, monolignols formed punctate structures in response to pathogen infection and colocalized with autophagic vesicles. Furthermore, autophagic activity and lignin accumulation were both enhanced in dnd1 (defense, no death 1) mutant with elevated disease resistance but no cell death and crossing dnd1-1 with atg mutants resulted in a lignin deficit, further supporting that lignin formation requires autophagy. Collectively, these findings demonstrate that lignification, particularly monolignol transport, is achieved through autophagic membrane trafficking in plant immunity.Abbreviations: ABC transporter: ATP-binding cassette transporter; ACD2/AT4G37000: accelerated cell death 2; ATG: autophagy-related; C3'H/AT2G40890: p-coumaroyl shikimate 3-hydroxylase; C4H/AT2G30490: cinnamate 4-hydroxylase; CA: coniferyl alcohol; CaMV: cauliflower mosaic virus; CASP: Casparian strip membrane domain protein; CASPL: CASP-like protein; CBB: Coomassie Brilliant Blue; CCoAOMT1/AT4G34050: caffeoyl-CoA O-methyltransferase 1; CCR1/AT1G15950: cinnamoyl-CoA reductase 1; CFU: colony-forming unit; COMT1/AT5G54160: caffeic acid O-methyltransferase 1; Con A: concanamycin A; DMAC: dimethylaminocoumarin; DND1/AT5G15410: defense, no death 1; CNGC2: cyclic nucleotide-gated channel 2; ER: endoplasmic reticulum; ESB1/AT2G28670/DIR10: enhanced suberin 1; ETI: effector-triggered immunity; EV: extracellular vesicle; F5H/AT4G36220: ferulate-5-hydroxylase; Fluo-3 AM: Fluo-3 acetoxymethyl ester; GFP: green fluorescent protein; HCT/AT5G48930: p-hydroxycinnamoyl-CoA:quinate/shikimate p-hydroxycinnamoyltransferase; HR: hypersensitive response; LAC: laccase; LTG: LysoTracker Green; LSD1/AT4G200380: lesion stimulating disease 1; PAL1/AT2G37040: phenylalanine ammonia-lyase 1; PAMP: pathogen-associated molecular patterns; PCD: programmed cell death; PE: phosphatidylethanolamine; PRX: peroxidase; Pst DC3000: Pseudomonas syringe pv. tomato DC3000; PTI: pattern-triggered immunity; SA: salicylic acid; SD: standard deviation; SID2/AT1G7410: SA induction-deficient 2; UGT: UDP-glucosyltransferase; UPLC: ultraperformance liquid chromatography; UPS: unconventional protein secretion; V-ATPase: vacuolar-type H+-translocating ATPase.
Collapse
Affiliation(s)
- Hwi Seong Jeon
- Department of Life Sciences, Korea University, Seoul, Korea
| | - Eunjeong Jang
- Department of Life Sciences, Korea University, Seoul, Korea
| | - Jinwoo Kim
- Seoul Center, Korea Basic Science Institute, Seoul, Korea
| | - Seu Ha Kim
- Department of Life Sciences, Korea University, Seoul, Korea
| | | | - Myung Hee Nam
- Seoul Center, Korea Basic Science Institute, Seoul, Korea
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, Japan
| | - Ohkmae K. Park
- Department of Life Sciences, Korea University, Seoul, Korea,CONTACT Ohkmae K. Park Department of Life Sciences, Korea University, Seoul02841, Korea
| |
Collapse
|
91
|
Gou M, Balint-Kurti P, Xu M, Yang Q. Quantitative disease resistance: Multifaceted players in plant defense. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:594-610. [PMID: 36448658 DOI: 10.1111/jipb.13419] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
In contrast to large-effect qualitative disease resistance, quantitative disease resistance (QDR) exhibits partial and generally durable resistance and has been extensively utilized in crop breeding. The molecular mechanisms underlying QDR remain largely unknown but considerable progress has been made in this area in recent years. In this review, we summarize the genes that have been associated with plant QDR and their biological functions. Many QDR genes belong to the canonical resistance gene categories with predicted functions in pathogen perception, signal transduction, phytohormone homeostasis, metabolite transport and biosynthesis, and epigenetic regulation. However, other "atypical" QDR genes are predicted to be involved in processes that are not commonly associated with disease resistance, such as vesicle trafficking, molecular chaperones, and others. This diversity of function for QDR genes contrasts with qualitative resistance, which is often based on the actions of nucleotide-binding leucine-rich repeat (NLR) resistance proteins. An understanding of the diversity of QDR mechanisms and of which mechanisms are effective against which classes of pathogens will enable the more effective deployment of QDR to produce more durably resistant, resilient crops.
Collapse
Affiliation(s)
- Mingyue Gou
- State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, Center for Crop Genome Engineering, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
- The Shennong Laboratory, Zhengzhou, 450002, China
| | - Peter Balint-Kurti
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, 27695, USA
- Plant Science Research Unit, USDA-ARS, Raleigh, NC, 27695, USA
| | - Mingliang Xu
- State Key Laboratory of Plant Physiology and Biochemistry, National Maize Improvement Center, Center for Crop Functional Genomics and Molecular Breeding, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Qin Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Maize Biology and Genetic Breeding in Arid Area of Northwest Region of the Ministry of Agriculture, College of Agronomy, Northwest A&F University, Yangling, 712100, China
| |
Collapse
|
92
|
Proteomic Profiling Reveals Distinct Bacterial Extracellular Vesicle Subpopulations with Possibly Unique Functionality. Appl Environ Microbiol 2023; 89:e0168622. [PMID: 36533919 PMCID: PMC9888257 DOI: 10.1128/aem.01686-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Bacterial outer membrane vesicles (OMVs) are 20- to 200-nm secreted packages of lipids, small molecules, and proteins that contribute to diverse bacterial processes. In plant systems, OMVs from pathogenic and beneficial strains elicit plant immune responses that inhibit seedling growth and protect against future pathogen challenge. Previous studies of OMV-plant interactions suggest functionally important differences in the protein composition of Pseudomonas syringae and Pseudomonas fluorescens OMVs, and that their composition and activity differ as a result of medium culture conditions. Here, we show that plant apoplast-mimicking minimal medium conditions impact OMV protein content dramatically in P. syringae but not in P. fluorescens relative to complete medium conditions. Comparative, 2-way analysis of the four conditions reveals subsets of proteins that may contribute to OMV-mediated bacterial virulence and plant immune activation as well as those involved in bacterial stress tolerance or adaptation to a beneficial relationship with plants. Additional localization enrichment analysis of these subsets suggests the presence of outer-inner membrane vesicles (OIMVs). Collectively, these results reveal distinct differences in bacterial extracellular vesicle cargo and biogenesis routes from pathogenic and beneficial plant bacteria in different medium conditions and point to distinct populations of vesicles with diverse functional roles. IMPORTANCE Recent publications have shown that bacterial vesicles play important roles in interkingdom communication between bacteria and plants. Indeed, our recently published data reveal that bacterial vesicles from pathogenic and beneficial strains elicit immune responses in plants that protect against future pathogen challenge. However, the molecules underlying these striking phenomena remain unknown. Our recent work indicated that proteins packaged in vesicles are critically important for vesicle-mediated seedling growth inhibition, often considered an indirect measure of plant immune activation. In this study, we characterize the protein cargo of vesicles from Pseudomonas syringae pathovar tomato DC3000 and Pseudomonas fluorescens from two different medium conditions and show that distinct subpopulations of vesicles contribute to bacterial virulence and stress tolerance. Furthermore, we reveal differences in how beneficial and pathogenic bacterial species respond to harsh environmental conditions through vesicle packaging. Importantly, we find that protein cargo implicates outer-inner membrane vesicles in bacterial stress responses, while outer membrane vesicles are packaged for virulence.
Collapse
|
93
|
Lazzaro BP. Infection biology: Molecular recognition of fungal spores stimulates host hygiene. Curr Biol 2023; 33:R70-R72. [PMID: 36693312 DOI: 10.1016/j.cub.2022.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hygienic behaviors that remove pathogens can be crucial in preventing disease. But how are such behaviors stimulated? A new study shows that Drosophila recognize proteins on the surface of Metarhizium spores as a cue to initiate grooming and spore removal.
Collapse
Affiliation(s)
- Brian P Lazzaro
- Department of Entomology, Cornell Institute of Host-Microbe Interactions and Disease, Cornell University, Ithaca, NY, USA.
| |
Collapse
|
94
|
Tong C, Zhang Y, Shi F. Genome-wide identification and analysis of the NLR gene family in Medicago ruthenica. Front Genet 2023; 13:1088763. [PMID: 36704335 PMCID: PMC9871256 DOI: 10.3389/fgene.2022.1088763] [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: 11/03/2022] [Accepted: 12/22/2022] [Indexed: 01/11/2023] Open
Abstract
Medicago ruthenica, important forage in the legume family, possesses high nutritional value and carries abundant tolerance genes. This study used whole-genome data of M. ruthenica to perform a genome-wide analysis of the nucleotide-binding site-leucine-rich repeat receptor (NLR) gene family, which is the largest family of plant disease resistance genes (R genes). A total of 338 NLR genes were identified in the M. ruthenica genome, including 160 typical genes that contained 80 coiled-coil (CC)-NBS-LRR (CNL) genes, 76 toll/interleukin-1 receptor (TIR)-NBS-LRR (TNL) genes, four resistance to powdery mildew 8 (RPW8)-NBS-LRR (RNL) subclass genes, and 178 atypical NLR genes encoding proteins without at least one important domain. Among its eight chromosomes, M. ruthenica chromosomes 3 and 8 contained most of the NLR genes. More than 40% of all NLR genes were located on these two chromosomes, mainly in multigene clusters. The NLR proteins of M. ruthenica had six highly conserved motifs: P-loop, GLPL, RNBS-D, kinase-2, RNBS-C, and MHDV. Phylogenetic analysis revealed that the NLR genes of M. ruthenica formed three deeply separated clades according to the N-terminal domain of the proteins encoded by these genes. Gene duplication and syntenic analysis suggested four gene duplication types in the NLR genes of M. ruthenica, namely, tandem, proximal, dispersed, and segmental duplicates, which involved 189, 49, 59, and 41 genes, respectively. A total of 41 segmental duplication genes formed 23 NLR gene pairs located on syntenic chromosomal blocks mainly between chromosomes 6 and 7. In addition, syntenic analysis between M. truncatula and M. ruthenica revealed 193 gene pairs located on syntenic chromosomal blocks of the two species. The expression analysis of M. ruthenica NLR genes showed that 303 (89.6%) of the NLR genes were expressed in different varieties. Overall, this study described the full NLR profile of the M. ruthenica genome to provide an important resource for mining disease-resistant genes and disease-resistant breeding.
Collapse
Affiliation(s)
- Chunyan Tong
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources (IMAU), Ministry of Education, Hohhot, China
| | - Yutong Zhang
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources (IMAU), Ministry of Education, Hohhot, China
| | - Fengling Shi
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China,Key Laboratory of Grassland Resources (IMAU), Ministry of Education, Hohhot, China,*Correspondence: Fengling Shi,
| |
Collapse
|
95
|
A small secreted protein, RsMf8HN, in Rhizoctonia solani triggers plant immune response, which interacts with rice OsHIPP28. Microbiol Res 2023; 266:127219. [DOI: 10.1016/j.micres.2022.127219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 11/27/2022]
|
96
|
Zhang C, Atanasov KE, Alcázar R. Spermine inhibits PAMP-induced ROS and Ca2+ burst and reshapes the transcriptional landscape of PAMP-triggered immunity in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:427-442. [PMID: 36264272 PMCID: PMC9786854 DOI: 10.1093/jxb/erac411] [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: 06/21/2022] [Accepted: 10/18/2022] [Indexed: 05/31/2023]
Abstract
Polyamines are small polycationic amines whose levels increase during defense. Previous studies support the contribution of the polyamine spermine to defense responses. However, the potential contribution of spermine to pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) has not been completely established. Here, we compared the contribution of spermine and putrescine to early and late PTI responses in Arabidopsis. We found that putrescine and spermine have opposite effects on PAMP-elicited reactive oxygen species (ROS) production, with putrescine increasing and spermine lowering the flg22-stimulated ROS burst. Through genetic and pharmacological approaches, we found that the inhibitory effect of spermine on flg22-elicited ROS production is independent of polyamine oxidation, nitric oxide, and salicylic acid signaling but resembles chemical inhibition of RBOHD (RESPIRATORY BURST OXIDASE HOMOLOG D). Spermine can also suppress ROS elicited by FLS2-independent but RBOHD-dependent pathways, thus pointing to compromised RBOHD activity. Consistent with this, we found that spermine but not putrescine dampens flg22-stimulated cytosolic Ca2+ influx. Finally, we found that both polyamines differentially reshape transcriptional responses during PTI and disease resistance to Pseudomonas syringae. Overall, we provide evidence for the differential contributions of putrescine and spermine to PTI, with an impact on plant defense.
Collapse
Affiliation(s)
- Chi Zhang
- Department of Biology, Healthcare and Environment. Section of Plant Physiology, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Kostadin E Atanasov
- Department of Biology, Healthcare and Environment. Section of Plant Physiology, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | | |
Collapse
|
97
|
Vuong UT, Iswanto ABB, Nguyen Q, Kang H, Lee J, Moon J, Kim SH. Engineering plant immune circuit: walking to the bright future with a novel toolbox. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:17-45. [PMID: 36036862 PMCID: PMC9829404 DOI: 10.1111/pbi.13916] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Plant pathogens destroy crops and cause severe yield losses, leading to an insufficient food supply to sustain the human population. Apart from relying on natural plant immune systems to combat biological agents or waiting for the appropriate evolutionary steps to occur over time, researchers are currently seeking new breakthrough methods to boost disease resistance in plants through genetic engineering. Here, we summarize the past two decades of research in disease resistance engineering against an assortment of pathogens through modifying the plant immune components (internal and external) with several biotechnological techniques. We also discuss potential strategies and provide perspectives on engineering plant immune systems for enhanced pathogen resistance and plant fitness.
Collapse
Affiliation(s)
- Uyen Thi Vuong
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Arya Bagus Boedi Iswanto
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Quang‐Minh Nguyen
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Hobin Kang
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Jihyun Lee
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Jiyun Moon
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Sang Hee Kim
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
- Division of Life ScienceGyeongsang National UniversityJinjuRepublic of Korea
| |
Collapse
|
98
|
Fartash AH, Ben C, Mazurier M, Ebrahimi A, Ghalandar M, Gentzbittel L, Rickauer M. Medicago truncatula quantitative resistance to a new strain of Verticillium alfalfae from Iran revealed by a genome-wide association study. FRONTIERS IN PLANT SCIENCE 2023; 14:1125551. [PMID: 37123855 PMCID: PMC10140629 DOI: 10.3389/fpls.2023.1125551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/20/2023] [Indexed: 05/03/2023]
Abstract
Verticillium wilt is a major threat to many crops, among them alfalfa (Medicago sativa). The model plant Medicago truncatula, a close relative of alfalfa was used to study the genetic control of resistance towards a new Verticillium alfalfae isolate. The accidental introduction of pathogen strains through global trade is a threat to crop production and such new strains might also be better adapted to global warming. Isolates of V. alfalfae were obtained from alfalfa fields in Iran and characterized. The Iranian isolate AF1 was used in a genome-wide association study (GWAS) involving 242 accessions from the Mediterranean region. Root inoculations were performed with conidia at 25°C and symptoms were scored regularly. Maximum Symptom Score and Area under Disease Progess Curve were computed as phenotypic traits to be used in GWAS and for comparison to a previous study with French isolate V31.2 at 20°C. This comparison showed high correlation with a shift to higher susceptibility, and similar geographical distribution of resistant and susceptible accessions to AF1 at 25°C, with resistant accessions mainly in the western part. GWAS revealed 30 significant SNPs linked to resistance towards isolate AF1. None of them were common to the previous study with isolate V31.2 at 20°C. To confirm these loci, the expression of nine underlying genes was studied. All genes were induced in roots following inoculation, in susceptible and resistant plants. However, in resistant plants induction was higher and lasted longer. Taken together, the use of a new pathogen strain and a shift in temperature revealed a completely different genetic control compared to a previous study that demonstrated the existence of two major QTLs. These results can be useful for Medicago breeding programs to obtain varieties better adapted to future conditions.
Collapse
Affiliation(s)
- Amir Hossein Fartash
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, Centre National de Recherche Scientifique, Toulouse Institut National Polytechnique, Université Toulouse 3 – Paul Sabatier (UPS), Toulouse, France
| | - Cécile Ben
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, Centre National de Recherche Scientifique, Toulouse Institut National Polytechnique, Université Toulouse 3 – Paul Sabatier (UPS), Toulouse, France
- Project Center for Agro Technologies, Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Mélanie Mazurier
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, Centre National de Recherche Scientifique, Toulouse Institut National Polytechnique, Université Toulouse 3 – Paul Sabatier (UPS), Toulouse, France
| | - Asa Ebrahimi
- Department of Plant Breeding and Biotechnology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mojtaba Ghalandar
- Plant Protection Department, Markazi Agricultural and Natural Resources Research and Education Center, Arak, Iran
| | - Laurent Gentzbittel
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, Centre National de Recherche Scientifique, Toulouse Institut National Polytechnique, Université Toulouse 3 – Paul Sabatier (UPS), Toulouse, France
- Project Center for Agro Technologies, Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Martina Rickauer
- Laboratoire écologie fonctionnelle et environnement, Université de Toulouse, Centre National de Recherche Scientifique, Toulouse Institut National Polytechnique, Université Toulouse 3 – Paul Sabatier (UPS), Toulouse, France
- *Correspondence: Martina Rickauer,
| |
Collapse
|
99
|
Xiang J, Cheng J, Wei L, Li M, Wu J. Functional analysis of the Nep1-like proteins from Plasmopara viticola. PLANT SIGNALING & BEHAVIOR 2022; 17:2000791. [PMID: 35152834 PMCID: PMC9176246 DOI: 10.1080/15592324.2021.2000791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 06/14/2023]
Abstract
Necrosis and ethylene-inducing peptide 1 (Nep1) -like proteins (NLP) are secreted by multiple taxonomically unrelated plant pathogens (bacteria, fungi, and oomycete) and are best known for inducing cell death and immune responses in dicotyledonous plants. A group of putative NLP genes from obligate biotrophic oomycete Plasmopara viticola were predicted by RNA-Seq in our previous study, but their activity has not been established. Therefore, we analyzed the P. viticola NLP (PvNLP) family and identified seven PvNLP genes. They all belong to type 1 NLP genes and form a P. viticola-specific cluster when compared with other pathogen NLP genes. The expression of PvNLPs was induced during early infection process and the expression patterns could be categorized into two groups. Agrobacterium tumefaciens-mediated transient expression assays revealed that only PvNLP7 was cytotoxic and could induce Phytophthora capsici resistance in Nicotiana benthamiana. Functional analysis showed that PvNLP4, PvNLP5, PvNLP7, and PvNLP10 significantly improved disease resistance of Arabidopsis thaliana to Hyaloperonospora arabidopsidis. Moreover, the four genes caused an inhibition of plant growth which is typically associated with enhanced immunity when over-expressed in Arabidopsis. Further research found that PvNLP7 could activate the expression of defense-related genes and its conserved NPP1 domain was critical for cell death- and immunity-inducing activity. This record of NLP genes from P. viticola showed a functional diversification, laying a foundation for further study on pathogenic mechanism of the devastating pathogen.
Collapse
Affiliation(s)
- Jiang Xiang
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jianhui Cheng
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Lingzhu Wei
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Mingshan Li
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jiang Wu
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| |
Collapse
|
100
|
Garza-Alonso CA, Olivares-Sáenz E, González-Morales S, Cabrera-De la Fuente M, Juárez-Maldonado A, González-Fuentes JA, Tortella G, Valdés-Caballero MV, Benavides-Mendoza A. Strawberry Biostimulation: From Mechanisms of Action to Plant Growth and Fruit Quality. PLANTS (BASEL, SWITZERLAND) 2022; 11:3463. [PMID: 36559576 PMCID: PMC9784621 DOI: 10.3390/plants11243463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/03/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
The objective of this review is to present a compilation of the application of various biostimulants in strawberry plants. Strawberry cultivation is of great importance worldwide, and, there is currently no review on this topic in the literature. Plant biostimulation consists of using or applying physical, chemical, or biological stimuli that trigger a response-called induction or elicitation-with a positive effect on crop growth, development, and quality. Biostimulation provides tolerance to biotic and abiotic stress, and more absorption and accumulation of nutrients, favoring the metabolism of the plants. The strawberry is a highly appreciated fruit for its high organoleptic and nutraceutical qualities since it is rich in phenolic compounds, vitamins, and minerals, in addition to being a product with high commercial value. This review aims to present an overview of the information on using different biostimulation techniques in strawberries. The information obtained from publications from 2000-2022 is organized according to the biostimulant's physical, chemical, or biological nature. The biochemical or physiological impact on plant productivity, yield, fruit quality, and postharvest life is described for each class of biostimulant. Information gaps are also pointed out, highlighting the topics in which more significant research effort is necessary.
Collapse
Affiliation(s)
| | - Emilio Olivares-Sáenz
- Protected Agriculture Center, Faculty of Agronomy, Universidad Autónoma de Nuevo León, General Escobedo 66050, Mexico
| | - Susana González-Morales
- National Council of Science and Technology (CONACYT), Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Mexico
| | | | | | | | - Gonzalo Tortella
- Center of Excellence in Biotechnological Research Applied to the Environment, CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4811230, Chile
| | | | | |
Collapse
|