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de Matos JP, Ribeiro DF, da Silva AK, de Paula CH, Cordeiro IF, Lemes CGDC, Sanchez AB, Rocha LCM, Garcia CCM, Almeida NF, Alves RM, de Abreu VAC, Varani AM, Moreira LM. Diversity and potential functional role of phyllosphere-associated actinomycetota isolated from cupuassu (Theobroma grandiflorum) leaves: implications for ecosystem dynamics and plant defense strategies. Mol Genet Genomics 2024; 299:73. [PMID: 39066857 DOI: 10.1007/s00438-024-02162-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 06/25/2024] [Indexed: 07/30/2024]
Abstract
Exploring the intricate relationships between plants and their resident microorganisms is crucial not only for developing new methods to improve disease resistance and crop yields but also for understanding their co-evolutionary dynamics. Our research delves into the role of the phyllosphere-associated microbiome, especially Actinomycetota species, in enhancing pathogen resistance in Theobroma grandiflorum, or cupuassu, an agriculturally valuable Amazonian fruit tree vulnerable to witches' broom disease caused by Moniliophthora perniciosa. While breeding resistant cupuassu genotypes is a possible solution, the capacity of the Actinomycetota phylum to produce beneficial metabolites offers an alternative approach yet to be explored in this context. Utilizing advanced long-read sequencing and metagenomic analysis, we examined Actinomycetota from the phyllosphere of a disease-resistant cupuassu genotype, identifying 11 Metagenome-Assembled Genomes across eight genera. Our comparative genomic analysis uncovered 54 Biosynthetic Gene Clusters related to antitumor, antimicrobial, and plant growth-promoting activities, alongside cutinases and type VII secretion system-associated genes. These results indicate the potential of phyllosphere-associated Actinomycetota in cupuassu for inducing resistance or antagonism against pathogens. By integrating our genomic discoveries with the existing knowledge of cupuassu's defense mechanisms, we developed a model hypothesizing the synergistic or antagonistic interactions between plant and identified Actinomycetota during plant-pathogen interactions. This model offers a framework for understanding the intricate dynamics of microbial influence on plant health. In conclusion, this study underscores the significance of the phyllosphere microbiome, particularly Actinomycetota, in the broader context of harnessing microbial interactions for plant health. These findings offer valuable insights for enhancing agricultural productivity and sustainability.
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Affiliation(s)
- Jéssica Pereira de Matos
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | - Dilson Fagundes Ribeiro
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | - Ana Karla da Silva
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | - Camila Henriques de Paula
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | - Isabella Ferreira Cordeiro
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | | | - Angélica Bianchini Sanchez
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | | | - Camila Carrião Machado Garcia
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil
| | - Nalvo F Almeida
- Faculdade de Computação, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | | | - Alessandro M Varani
- Departamento de Biotecnologia Agropecuária e Ambiental, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (UNESP), Jaboticabal, SP, Brazil.
| | - Leandro Marcio Moreira
- Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil.
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, 35400-000, Brazil.
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Zhang Y, Wen TY, Wu XQ, Hu LJ, Qiu YJ, Rui L. The Bursaphelenchus xylophilus effector BxML1 targets the cyclophilin protein (CyP) to promote parasitism and virulence in pine. BMC PLANT BIOLOGY 2022; 22:216. [PMID: 35473472 PMCID: PMC9044635 DOI: 10.1186/s12870-022-03567-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 03/30/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Bursaphelenchus xylophilus is the causal agent of pine wilt disease (PWD) that has caused enormous ecological and economic losses in China. The mechanism in the interaction between nematodes and pine remains unclear. Plant parasitic nematodes (PPNs) secrete effectors into host plant tissues. However, it is poorly studied that role of effector in the infection of pine wood nematode (PWN). RESULTS We cloned, characterized and functionally validated the B. xylophilus effector BxML1, containing an MD-2-related lipid-recognition (ML) domain. This protein inhibits immune responses triggered by the molecular pattern BxCDP1 of B. xylophilus. An insitu hybridization assay demonstrated that BxML1 was expressed mainly in the dorsal glands and intestine of B. xylophilus. Subcellular localization analysis showed the presence of BxML1 in the cytoplasm and nucleus. Furthermore, number of B. xylophilus and morbidity of pine were significantly reduced in Pinus thunbergii infected with B. xylophilus when BxML was silenced. Using yeast two-hybrid (Y2H) and coimmunoprecipitation (CoIP) assays, we found that the BxML1 interacts with cyclophilin protein PtCyP1 in P. thunbergii. CONCLUSIONS This study illustrated that BxML1 plays a critical role in the B. xylophilus-plant interaction and virulence of B. xylophilus.
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Affiliation(s)
- Yan Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China
| | - Tong-Yue Wen
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China.
| | - Long-Jiao Hu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China
| | - Yi-Jun Qiu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China
| | - Lin Rui
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
- Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing, 210037, China
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Leetanasaksakul K, Roytrakul S, Phaonakrop N, Kittisenachai S, Thaisakun S, Srithuanok N, Sriroth K, Soulard L. Discovery of potential protein biomarkers associated with sugarcane white leaf disease susceptibility using a comparative proteomic approach. PeerJ 2022; 10:e12740. [PMID: 35036104 PMCID: PMC8742537 DOI: 10.7717/peerj.12740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/13/2021] [Indexed: 01/07/2023] Open
Abstract
Sugarcane white leaf disease (SCWLD) is caused by phytoplasma, a serious sugarcane phytoplasma pathogen, which causes significant decreases in crop yield and sugar quality. The identification of proteins involved in the defense mechanism against SCWLD phytoplasma may help towards the development of varieties resistant to SCWLD. We investigated the proteomes of four sugarcane varieties with different levels of susceptibility to SCWLD phytoplasma infection, namely K88-92 and K95-84 (high), KK3 (moderate), and UT1 (low) by quantitative label-free nano-liquid chromatography-tandem mass spectrometry (nano LC-MS/MS). A total of 248 proteins were identified and compared among the four sugarcane varieties. Two potential candidate protein biomarkers for reduced susceptibility to SCWLD phytoplasma were identified as proteins detected only in UT1. The functions of these proteins are associated with protein folding, metal ion binding, and oxidoreductase. The candidate biomarkers could be useful for further study of the sugarcane defense mechanism against SCWLD phytoplasma, and in molecular and conventional breeding strategies for variety improvement.
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Affiliation(s)
- Kantinan Leetanasaksakul
- Functional Proteomics Technology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Sittiruk Roytrakul
- Functional Proteomics Technology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Narumon Phaonakrop
- Functional Proteomics Technology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Suthathip Kittisenachai
- Functional Proteomics Technology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Siriwan Thaisakun
- Functional Proteomics Technology, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Khlong Nueng, Khlong Luang, Pathum Thani, Thailand
| | - Nitiya Srithuanok
- Mitr Phol Innovation and Research Center, Khoksa-at, Phu Khiao, Chaiyaphum, Thailand
| | - Klanarong Sriroth
- Mitr Phol Innovation and Research Center, Khoksa-at, Phu Khiao, Chaiyaphum, Thailand
| | - Laurent Soulard
- Mitr Phol Innovation and Research Center, Khoksa-at, Phu Khiao, Chaiyaphum, Thailand
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Genetic and Proteomic Basis of Sclerotinia Stem Rot Resistance in Indian Mustard [ Brassica juncea (L.) Czern & Coss.]. Genes (Basel) 2021; 12:genes12111784. [PMID: 34828391 PMCID: PMC8621386 DOI: 10.3390/genes12111784] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 11/16/2022] Open
Abstract
Sclerotinia stem rot is one of the utmost important disease of mustard, causing considerable losses in seed yield and oil quality. The study of the genetic and proteomic basis of resistance to this disease is imperative for its effective utilization in developing resistant cultivars. Therefore, the genetic pattern of Sclerotinia stem rot resistance in Indian mustard was studied using six generations (P1, P2, F1, F2, BC1P1, and BC1P2) developed from the crossing of one resistant (RH 1222-28) and two susceptible (EC 766300 and EC 766123) genotypes. Genetic analysis revealed that resistance was governed by duplicate epistasis. Comparative proteome analysis of resistant and susceptible genotypes indicated that peptidyl-prolyl cis-trans isomerase (A0A078IDN6 PPIase) showed high expression in resistant genotype at the early infection stage while its expression was delayed in susceptible genotypes. This study provides important insight to mustard breeders for designing effective breeding programs to develop resistant cultivars against this devastating disease.
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Cyclophilins and Their Functions in Abiotic Stress and Plant-Microbe Interactions. Biomolecules 2021; 11:biom11091390. [PMID: 34572603 PMCID: PMC8464771 DOI: 10.3390/biom11091390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 01/12/2023] Open
Abstract
Plants have developed a variety of mechanisms and regulatory pathways to change their gene expression profiles in response to abiotic stress conditions and plant–microbe interactions. The plant–microbe interaction can be pathogenic or beneficial. Stress conditions, both abiotic and pathogenic, negatively affect the growth, development, yield and quality of plants, which is very important for crops. In contrast, the plant–microbe interaction could be growth-promoting. One of the proteins involved in plant response to stress conditions and plant–microbe interactions is cyclophilin. Cyclophilins (CyPs), together with FK506-binding proteins (FKBPs) and parvulins, belong to a big family of proteins with peptidyl-prolyl cis-trans isomerase activity (Enzyme Commission (EC) number 5.2.1.8). Genes coding for proteins with the CyP domain are widely expressed in all organisms examined, including bacteria, fungi, animals, and plants. Their different forms can be found in the cytoplasm, endoplasmic reticulum, nucleus, chloroplast, mitochondrion and in the phloem space. They are involved in numerous processes, such as protein folding, cellular signaling, mRNA processing, protein degradation and apoptosis. In the past few years, many new functions, and molecular mechanisms for cyclophilins have been discovered. In this review, we aim to summarize recent advances in cyclophilin research to improve our understanding of their biological functions in plant defense and symbiotic plant–microbe interactions.
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Ulagesan S, Choi JW, Nam TJ, Choi YH. Peptidyl-prolyl isomerase and the biological activities of recombinant protein cyclophilin from Pyropia yezoensis (PyCyp). Protein Expr Purif 2020; 172:105636. [PMID: 32272150 DOI: 10.1016/j.pep.2020.105636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/25/2020] [Accepted: 04/02/2020] [Indexed: 02/06/2023]
Abstract
Cyclophilins are highly conserved proteins associated with peptidyl-prolyl cis-trans isomerase activity (PPIase). The present study was designed to analyze the biological activity of recombinant cyclophilin from the marine red algae Pyropia yezoensis (PyCyp). The cyclophilin gene from P. yezoensis was cloned into the pPROEX-HTA expression vector. The plasmid was transformed into BL21 Escherichia coli by high efficiency transformation. Recombinant protein was expressed using 0.1 mM IPTG and the fusion protein was purified by affinity column chromatography. The His-tag was removed by TEV protease. The recombinant protein was further purified on a HiPrep Sephacryl S-200 HR column and by reversed-phase high performance liquid chromatography with a Sep-pak plus C18 column. Purified cyclophilin was characterized by a variety of analytical methods and analyzed for its peptidyl-prolyl isomerase activity. Our recombinant PyCyp was shown to catalyze cis-trans isomerization. PyCyp was also evaluated for antimicrobial activity against both Gram-positive and Gram-negative bacteria cultures and showed significant antibacterial activity against tested pathogens. PyCyp was shown to permeabilize bacterial membranes as evidenced by increased fluorescence intensity in SYTOX Green uptake assays with Staphylococcus aureus. The radical scavenging activity of PyCyp increased in a dose-dependent manner, indicating significant antioxidant activity. This study provides information for the development of therapeutic proteins from marine algae.
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Affiliation(s)
- Selvakumari Ulagesan
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea
| | - Jeong-Wook Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea
| | - Youn-Hee Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea; Department of Marine Bio-materials & Aquaculture, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, 48513, Republic of Korea.
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Yang J, Wang G, Ke H, Zhang Y, Ji L, Huang L, Zhang C, Wang X, Ma Z. Genome-wide identification of cyclophilin genes in Gossypium hirsutum and functional characterization of a CYP with antifungal activity against Verticillium dahliae. BMC PLANT BIOLOGY 2019; 19:272. [PMID: 31226952 PMCID: PMC6588949 DOI: 10.1186/s12870-019-1848-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/24/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Cyclophilins (CYPs), belonging to the peptidyl prolyl cis/trans isomerase (PPIase) superfamily, play important roles during plant responses to biotic and abiotic stresses. RESULTS Here, a total of 79 CYPs were identified in the genome of Gossypium hirsutum. Of which, 65 GhCYPs only contained one cyclophilin type PPIase domain, others 14 GhCYPs contain additional domains. A number of cis-acting elements related to phytohormone signaling were predicated in the upstream of GhCYPs ORF. The expression analysis revealed that GhCYPs were induced in response to cold, hot, salt, PEG and Verticillium dahliae infection. In addition, the functional importance of GhCYP-3 in Verticillium wilt resistance was also presented in this study. GhCYP-3 showed both cytoplasmic and nuclear localization. Overexpression of GhCYP-3 in Arabidopsis significantly improved Verticillium wilt resistance of the plants. Recombinant GhCYP-3 displayed PPIase activity and evident inhibitory effects on V. dahliae in vitro. Moreover, the extracts from GhCYP-3 transgenic Arabidopsis displayed significantly inhibit activity to conidia germinating and hyphal growth of V. dahliae. CONCLUSIONS Our study identified the family members of cotton CYP genes using bioinformatics tools. Differential expression patterns of GhCYPs under various abiotic stress and V. dahliae infection conditions provide a comprehensive understanding of the biological functions of candidate genes. Moreover, GhCYP-3 involved in the resistance of cotton to V. dahliae infection presumably through antifungal activity.
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Affiliation(s)
- Jun Yang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Guoning Wang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Huifeng Ke
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Yan Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Lianlian Ji
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Lizhi Huang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Chunying Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Xingfen Wang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
| | - Zhiying Ma
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Hebei Agricultural University, Baoding, 071001 China
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Qin T, Liu S, Zhang Z, Sun L, He X, Lindsey K, Zhu L, Zhang X. GhCyP3 improves the resistance of cotton to Verticillium dahliae by inhibiting the E3 ubiquitin ligase activity of GhPUB17. PLANT MOLECULAR BIOLOGY 2019; 99:379-393. [PMID: 30671725 DOI: 10.1007/s11103-019-00824-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 01/12/2019] [Indexed: 05/02/2023]
Abstract
A U-box E3 ubiquitin ligase GhPUB17 is inhibited by GhCyP3 with antifungal activity and acts as a negative regulator involved in cotton resistance to Verticillium dahliae. E3 ubiquitin ligases, the key component enzymes of the ubiquitin-proteasome system, which contains the most diverse structural and functional members involved in the determination of target specificity and the regulation of metabolism, have been well documented in previous studies. Here, we identify GhPUB17, a U-box E3 ligase in cotton that has ubiquitination activity and is involved in the cotton immune response to Verticillium dahliae. The expression level of GhPUB17 is downregulated in the ssn mutant with a constitutively activated immune response (Sun et al., Nat Commun 5:5372, 2014). Infection with V. dahliae or exogenous hormone treatment, including jasmonic acid and salicylic acid, significantly upregulated GhPUB17 in cotton roots, which suggested a possible role for this E3 ligase in the plant immune response to pathogens. Moreover, GhPUB17-knockdown cotton plants are more resistant to V. dahliae, whereas GhPUB17-overexpressing plants are more susceptible to the pathogen, which indicated that GhPUB17 is a negative regulator of cotton resistance to V. dahliae. A yeast two-hybrid (Y2H) assay identified GhCyP3 as a protein that interacts with GhPUB17, and this finding was confirmed by further protein interaction assays. The downregulation of GhCyP3 in cotton seedlings attenuated the plants' resistance to V. dahliae. In addition, GhCyP3 showed antifungal activity against V. dahliae, and the E3 ligase activity of GhPUB17 was repressed by GhCyP3 in vitro. These results suggest that GhPUB17 negatively regulates cotton immunity to V. dahliae and that the antifungal protein GhCyP3 likely interacts with and inhibits the ligase activity of GhPUB17 and plays an important role in the cotton-Verticillium interaction.
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Affiliation(s)
- Tao Qin
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Shiming Liu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Zhennan Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Longqing Sun
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Xin He
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Keith Lindsey
- Department of Biosciences, Durham University, South Road, Durham, UK
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
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Zhang H, Wang J, Li S, Wang S, Liu M, Wang W, Zhao Y. Molecular cloning, expression, purification and functional characterization of an antifungal cyclophilin protein from Panax ginseng. Biomed Rep 2017; 7:527-531. [PMID: 29188056 PMCID: PMC5702963 DOI: 10.3892/br.2017.998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 10/02/2017] [Indexed: 12/28/2022] Open
Abstract
Cyclophilins (CyPs), a member of peptidyl-prolyl cis-trans isomerases (PPIases), are ubiquitously distributed in organisms such as bacteria, yeast, plants and animals. CyPs have diverse biological functions, with some exhibiting antifungal and antiviral activities. In this study, Panax ginseng cyclophilin (pgCyP), a novel gene encoding an antifungal protein from Panax ginseng, was cloned, and its protein product was expressed in Escherichia coli, and then fractionated by affinity chromatography. The open reading frame of the pgCyP full-length coding sequence was found to encode a single-domain CyP-like protein of 174 amino residues with a calculated molecular weight of 18.7 kDa. The pGEX system was used to express pgCyP fused to glutathione S-transferase. After affinity purification, the protein showed a strong fungal resistance effect on Phytophthora cactorum. In addition, pgCyP showed high PPIase activity. To the best of our knowledge, the present study is the first successful effort to clone and characterize a CyP-like protein gene from Panax ginseng.
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Affiliation(s)
- Hui Zhang
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Jiawen Wang
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Shuaijun Li
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Siming Wang
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Meichen Liu
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Weinan Wang
- School of Pharmaceutical Sciences, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
| | - Yu Zhao
- Traditional Chinese Medicine and Biotechnology Research and Development Center, Changchun University of Traditional Chinese Medicine, Changchun, Jilin 130117, P.R. China
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Functional characterization of thioredoxin h type 5 with antimicrobial activity from Arabidopsis thaliana. BIOTECHNOL BIOPROC E 2017. [DOI: 10.1007/s12257-017-0074-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Park SC, Moon JC, Shin SY, Son H, Jung YJ, Kim NH, Kim YM, Jang MK, Lee JR. Functional characterization of alpha-synuclein protein with antimicrobial activity. Biochem Biophys Res Commun 2016; 478:924-8. [DOI: 10.1016/j.bbrc.2016.08.052] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 08/08/2016] [Indexed: 10/21/2022]
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12
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Kim YG, Kang HK, Kwon KD, Seo CH, Lee HB, Park Y. Antagonistic Activities of Novel Peptides from Bacillus amyloliquefaciens PT14 against Fusarium solani and Fusarium oxysporum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10380-10387. [PMID: 26496638 DOI: 10.1021/acs.jafc.5b04068] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bacillus species have recently drawn attention due to their potential use in the biological control of fungal diseases. This paper reports on the antifungal activity of novel peptides isolated from Bacillus amyloliquefaciens PT14. Reverse-phase high-performance liquid chromatography revealed that B. amyloliquefaciens PT14 produces five peptides (PT14-1, -2, -3, -4a, and -4b) that exhibit antifungal activity but are inactive against bacterial strains. In particular, PT14-3 and PT14-4a showed broad-spectrum antifungal activity against Fusarium solani and Fusarium oxysporum. The PT14-4a N-terminal amino acid sequence was identified through Edman degradation, and a BLAST homology analysis showed it not to be identical to any other protein or peptide. PT14-4a displayed strong fungicidal activity with minimal inhibitory concentrations of 3.12 mg/L (F. solani) and 6.25 mg/L (F. oxysporum), inducing severe morphological deformation in the conidia and hyphae. On the other hand, PT14-4a had no detectable hemolytic activity. This suggests PT14-4a has the potential to serve as an antifungal agent in clinical therapeutic and crop-protection applications.
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Affiliation(s)
- Young Gwon Kim
- Department of Biomedical Science, Chosun University , Gwangju 61452, Korea
| | - Hee Kyoung Kang
- Department of Biomedical Science, Chosun University , Gwangju 61452, Korea
| | - Kee-Deok Kwon
- Department of Bioinformatics, Kongju National University , Kongju 32588, Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University , Kongju 32588, Korea
| | - Hyang Burm Lee
- College of Agriculture and Life Sciences, Chonnam National University , Gwangju 61186, Korea
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University , Gwangju 61452, Korea
- Research Center for Proteineous Materials, Chosun University , Gwangju 61452, Korea
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Plant immunophilins: a review of their structure-function relationship. Biochim Biophys Acta Gen Subj 2014; 1850:2145-58. [PMID: 25529299 DOI: 10.1016/j.bbagen.2014.12.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 12/13/2014] [Accepted: 12/15/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Originally discovered as receptors for immunosuppressive drugs, immunophilins consist of two major groups, FK506 binding proteins (FKBPs) and cyclosporin A binding proteins (cyclophilins, CYPs). Many members in both FKBP and CYP families are peptidyl prolyl isomerases that are involved in protein folding processes, though they share little sequence homology. It is not surprising to find immunophilins in all organisms examined so far, including viruses, bacteria, fungi, plants and animals, as protein folding represents a common process in all living systems. SCOPE OF REVIEW Studies on plant immunophilins have revealed new functions beyond protein folding and new structural properties beyond that of typical PPIases. This review focuses on the structural and functional diversity of plant FKBPs and CYPs. MAJOR CONCLUSIONS The differences in sequence, structure as well as subcellular localization, have added on to the diversity of this family of molecular chaperones. In particular, the large number of immunophilins present in the thylakoid lumen of the photosynthetic organelle, promises to deliver insights into the regulation of photosynthesis, a unique feature of plant systems. However, very little structural information and functional data are available for plant immunophilins. GENERAL SIGNIFICANCE Studies on the structure and function of plant immunophilins are important in understanding their role in plant biology. By reviewing the structural and functional properties of some immunophilins that represent the emerging area of research in plant biology, we hope to increase the interest of researchers in pursuing further research in this area. This article is part of a Special Issue entitled Proline-directed Foldases: Cell Signaling Catalysts and Drug Targets.
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Monteiro F, Sebastiana M, Pais MS, Figueiredo A. Reference gene selection and validation for the early responses to downy mildew infection in susceptible and resistant Vitis vinifera cultivars. PLoS One 2013; 8:e72998. [PMID: 24023800 PMCID: PMC3762845 DOI: 10.1371/journal.pone.0072998] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Accepted: 07/16/2013] [Indexed: 01/04/2023] Open
Abstract
The pivotal role of cultivated grapevine (Vitis vinifera L.) in many countries economy is compromised by its high susceptibility to Plasmopara viticola, the causal agent of downy mildew disease. Recent research has identified a set of genes related to resistance which may be used to track downy mildew infection. Quantification of the expression of these resistance genes requires normalizing qPCR data using reference genes with stable expression in the system studied. In this study, a set of eleven genes (VATP16, 60 S, UQCC, SMD3, EF1α, UBQ, SAND, GAPDH, ACT, PsaB, PTB2) was evaluated to identify reference genes during the first hours of interaction (6, 12, 18 and 24 hpi) between two V. vinifera genotypes and P. viticola. Two analyses were used for the selection of reference genes: direct comparison of susceptible, Trincadeira, and resistant, Regent, V. vinifera cultivars at 0 h, 6, 12, 18 and 24 hours post inoculation with P. viticola (genotype effect); and comparison of each genotype with mock inoculated samples during inoculation time-course (biotic stress effect). Three statistical methods were used, GeNorm, NormFinder, and BestKeeper, allowing to identify UBQ, EF1α and GAPDH as the most stable genes for the genotype effect. For the biotic stress effect, EF1α, SAND and SMD3 were the most constant for the susceptible cultivar Trincadeira and EF1α, GAPDH, UBQ for the resistant cultivar Regent. In addition, the expression of three defense-related transcripts, encoding for subtilisin-like protein, CYP and PR10, was analysed, for both datasets, during inoculation time-course. Taken together, our results provide guidelines for reference gene(s) selection towards a more accurate and widespread use of qPCR to study the first hours of interaction between different grapevine cultivars and P. viticola.
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Affiliation(s)
- Filipa Monteiro
- Plant Systems Biology Lab, Center of Biodiversity, Functional & Integrative Genomics (BioFIG), Science Faculty of Lisbon University, Lisboa, Portugal
- * E-mail: (AF); (FM)
| | - Mónica Sebastiana
- Plant Systems Biology Lab, Center of Biodiversity, Functional & Integrative Genomics (BioFIG), Science Faculty of Lisbon University, Lisboa, Portugal
| | - Maria Salomé Pais
- Plant Systems Biology Lab, Center of Biodiversity, Functional & Integrative Genomics (BioFIG), Science Faculty of Lisbon University, Lisboa, Portugal
| | - Andreia Figueiredo
- Plant Systems Biology Lab, Center of Biodiversity, Functional & Integrative Genomics (BioFIG), Science Faculty of Lisbon University, Lisboa, Portugal
- * E-mail: (AF); (FM)
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15
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Jia Z, Niu J, Huan L, Wu X, Wang G, Hou Z. Cyclophilin Participates in Responding to Stress Situations in Porphyra haitanensis (Bangiales, Rhodophyta). JOURNAL OF PHYCOLOGY 2013; 49:194-201. [PMID: 27008400 DOI: 10.1111/j.1529-8817.2012.01234.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Accepted: 07/09/2012] [Indexed: 05/20/2023]
Abstract
Porphyra haitanensis (T. J. Chang & B. F. Zheng) is an important economic alga found off the southern coast of China. It has evolved a strong tolerance against stress, which is an important survival characteristic. Cyclophilin has been shown to be involved in the stress response of plants and algae. To investigate the tolerance against stress in Porphyra, we isolated the cyclophilin PhCYP18 gene (Accession number JQ413239) and measured its expression over different generations and stress conditions. In P. haitanensis, cyclophilin PhCYP18 accumulated more in the filamentous sporophyte generation than in the blade gametophyte generation. This difference was thought to be due to harsh environments and a gene dosage effect. It has been found, however, that PhCYP18 expression was dysregulated in blades under high salt stress, strong irradiance stress and multifactorial stress compared to blades under normal conditions. Moreover, the changes were not linearly related to the degree of stress. It was therefore thought that PhCYP18 actively responded to stress situations and induced strong stress tolerance, which is evident in P. haitanensis.
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Affiliation(s)
- Zhaojun Jia
- College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Jianfeng Niu
- Institute of Oceanology, The Chinese Academy of Sciences (IOCAS), Qingdao, 266071, China
| | - Li Huan
- Institute of Oceanology, The Chinese Academy of Sciences (IOCAS), Qingdao, 266071, China
- Graduate University of the Chinese Academy of Sciences, Beijing, 100019, China
| | - Xiaojie Wu
- College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Guangce Wang
- Institute of Oceanology, The Chinese Academy of Sciences (IOCAS), Qingdao, 266071, China
| | - Zhaojun Hou
- College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
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16
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Gottwald S, Samans B, Lück S, Friedt W. Jasmonate and ethylene dependent defence gene expression and suppression of fungal virulence factors: two essential mechanisms of Fusarium head blight resistance in wheat? BMC Genomics 2012; 13:369. [PMID: 22857656 PMCID: PMC3533685 DOI: 10.1186/1471-2164-13-369] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 06/21/2012] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Fusarium head blight (FHB) caused by Fusarium species like F. graminearum is a devastating disease of wheat (Triticum aestivum) worldwide. Mycotoxins such as deoxynivalenol produced by the fungus affect plant and animal health, and cause significant reductions of grain yield and quality. Resistant varieties are the only effective way to control this disease, but the molecular events leading to FHB resistance are still poorly understood. Transcriptional profiling was conducted for the winter wheat cultivars Dream (moderately resistant) and Lynx (susceptible). The gene expressions at 32 and 72 h after inoculation with Fusarium were used to trace possible defence mechanisms and associated genes. A comparative qPCR was carried out for selected genes to analyse the respective expression patterns in the resistant cultivars Dream and Sumai 3 (Chinese spring wheat). RESULTS Among 2,169 differentially expressed genes, two putative main defence mechanisms were found in the FHB-resistant Dream cultivar. Both are defined base on their specific mode of resistance. A non-specific mechanism was based on several defence genes probably induced by jasmonate and ethylene signalling, including lipid-transfer protein, thionin, defensin and GDSL-like lipase genes. Additionally, defence-related genes encoding jasmonate-regulated proteins were up-regulated in response to FHB. Another mechanism based on the targeted suppression of essential Fusarium virulence factors comprising proteases and mycotoxins was found to be an essential, induced defence of general relevance in wheat. Moreover, similar inductions upon fungal infection were frequently observed among FHB-responsive genes of both mechanisms in the cultivars Dream and Sumai 3. CONCLUSIONS Especially ABC transporter, UDP-glucosyltransferase, protease and protease inhibitor genes associated with the defence mechanism against fungal virulence factors are apparently active in different resistant genetic backgrounds, according to reports on other wheat cultivars and barley. This was further supported in our qPCR experiments on seven genes originating from this mechanism which revealed similar activities in the resistant cultivars Dream and Sumai 3. Finally, the combination of early-stage and steady-state induction was associated with resistance, while transcript induction generally occurred later and temporarily in the susceptible cultivars. The respective mechanisms are attractive for advanced studies aiming at new resistance and toxin management strategies.
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Affiliation(s)
- Sven Gottwald
- Department of Plant Breeding, Justus-Liebig University, Institute of Agronomy and Plant Breeding I, Heinrich-Buff-Ring 26-32, Giessen, D-35392, Germany
| | - Birgit Samans
- Biometry and Population Genetics, Justus-Liebig University, Institute of Agronomy and Plant Breeding II, Heinrich-Buff-Ring 26-32, Giessen, D-35392, Germany
| | - Stefanie Lück
- Department of Plant Breeding, Justus-Liebig University, Institute of Agronomy and Plant Breeding I, Heinrich-Buff-Ring 26-32, Giessen, D-35392, Germany
| | - Wolfgang Friedt
- Department of Plant Breeding, Justus-Liebig University, Institute of Agronomy and Plant Breeding I, Heinrich-Buff-Ring 26-32, Giessen, D-35392, Germany
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17
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Figueiredo A, Monteiro F, Fortes AM, Bonow-Rex M, Zyprian E, Sousa L, Pais MS. Cultivar-specific kinetics of gene induction during downy mildew early infection in grapevine. Funct Integr Genomics 2012; 12:379-86. [PMID: 22246600 DOI: 10.1007/s10142-012-0261-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 12/08/2011] [Accepted: 01/01/2012] [Indexed: 01/05/2023]
Abstract
The oomycete pathogen Plasmopara viticola (Berk. et Curt.) Berl. et de Toni is the causing agent of the destructive downy mildew disease in grapevine. Despite the advances towards elucidation of grapevine resistance mechanisms to downy mildew, increased knowledge of the biological and genetic components of the pathosystem is important to design suitable breeding strategies. Previously, a cDNA microarray approach was used to compare two Vitis vinifera genotypes Regent and Trincadeira (resistant and susceptible to downy mildew, respectively) in field conditions. The same cDNA microarray chip was used to confirm field-based results and to compare both genotypes under greenhouse conditions at 0, 6, and 12 h post-inoculation with P. viticola. Results show that when comparing both cultivars after pathogen inoculation, there is a preferential modulation of several defense, signaling, and metabolism associated transcripts in Regent. Early transcriptional changes are discussed in terms of genetic background and resistance mechanism. This study is the first to directly compare resistant and susceptible cultivars responses as early as 6 hpi with P. viticola, providing several candidate genes potentially related to the expression of resistance traits.
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Affiliation(s)
- Andreia Figueiredo
- Plant Systems Biology Lab, Center of Biodiversity, Functional & Integrative Genomics, Science Faculty of Lisbon University, 1749-016 Lisbon, Portugal.
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18
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Milli A, Cecconi D, Bortesi L, Persi A, Rinalducci S, Zamboni A, Zoccatelli G, Lovato A, Zolla L, Polverari A. Proteomic analysis of the compatible interaction between Vitis vinifera and Plasmopara viticola. J Proteomics 2011; 75:1284-302. [PMID: 22120121 DOI: 10.1016/j.jprot.2011.11.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 10/13/2011] [Accepted: 11/04/2011] [Indexed: 11/26/2022]
Abstract
We analyzed the proteome of grapevine (Vitis vinifera) leaves 24, 48 and 96 h post infection (hpi) with the downy mildew pathogen Plasmopara viticola. Total proteins were separated on 2-DE gels. By MS analysis, we identified 82 unique grapevine proteins differentially expressed after infection. Upregulated proteins were often included in the functional categories of general metabolism and stress response, while proteins related to photosynthesis and energy production were mostly downregulated. As expected, the activation of a defense reaction was observed more often at the late time point, consistent with the establishment of a compatible interaction. Most proteins involved in resistance were isoforms of different PR-10 pathogenesis-related proteins. Although >50 differentially expressed protein isoforms were observed at 24 and 96 hpi, only 18 were detected at 48 hpi and no defense-related proteins were among this group. This profile suggests a transient breakdown in defense responses accompanying the onset of disease, further supported by gene expression analyses and by a western blot analysis of a PR-10 protein. Our data reveal the complex modulation of plant metabolism and defense responses during compatible interactions, and provide insight into the underlying molecular processes which may eventually yield novel strategies for pathogen control in the field.
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Affiliation(s)
- Alberto Milli
- Dept. of Biotechnology, University of Verona, Verona, Italy
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19
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Moreira JS, Almeida RG, Tavares LS, Santos MO, Viccini LF, Vasconcelos IM, Oliveira JTA, Raposo NRB, Dias SC, Franco OL. Identification of botryticidal proteins with similarity to NBS-LRR proteins in rosemary pepper (Lippia sidoides Cham.) flowers. Protein J 2011; 30:32-8. [PMID: 21210197 DOI: 10.1007/s10930-010-9299-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Heavy agricultural losses are closely related to attacks by insect-pests and phytopathogens such as bacteria and fungi. Among them, the fungus Botrytis cinerea can cause gray mold in more than 200 different species of plants, and is considered a challenging problem for agribusiness. Fungicides are commonly used to control this pathogen because they are fast-working and easy to apply. However, the continuous use of fungicides may promote the selection of resistant fungi and can also cause profound contamination in ecosystems. Aiming to find alternative strategies to solve these problems, several studies have focused on searching for plant proteins and peptides with antifungal activities (AFPs). With this in mind, this report shows the isolation and characterization of two novels antifungal proteins from flowers of rosemary pepper (Lippia sidoides Cham.) with 10 and 15 kDa. Isolation was performed by using an Octyl-Sepharose hydrophobic column. In vitro bioassays indicated that isolated proteins were able to inhibit B. cinerea development, but were not effective against all bacteria tested. Moreover, N-termini sequences indicate that both proteins showed sequence homology with NBS-LRR R proteins with a lower molecular mass, suggesting possible protein fragmentation. Data reported here could help in the development of biotechnological products for crop protection against phytopathogenic fungi in the near future.
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Affiliation(s)
- João S Moreira
- Centro de Análises Proteômicas e Bioquímicas, Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN Quadra 916, Módulo B, Av. W5 Norte 70. 790-160 Asa Norte, Brasília, DF-Brazil.
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20
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Morais JKS, Gomes VM, Oliveira JTA, Santos IS, Da Cunha M, Oliveira HD, Oliveira HP, Sousa DOB, Vasconcelos IM. Soybean toxin (SBTX), a protein from soybeans that inhibits the life cycle of plant and human pathogenic fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:10356-63. [PMID: 20831249 DOI: 10.1021/jf101688k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Soybean toxin (SBTX) is a 44 kDa glycoprotein that is lethal to mice (LD(50) = 5.6 mg/kg). This study reports the toxicity of SBTX on pathogenic fungi and yeasts and the mechanism of its action. SBTX inhibited spore germination of Aspergillus niger and Penicillium herguei and was toxic to Candida albicans, Candida parapsilosis, Kluyveromyces marxiannus , Pichia membranifaciens, and Saccharomyces cerevisiae. In addition, SBTX hampered the growth of C. albicans and K. marxiannus and inhibited the glucose-stimulated acidification of the incubation medium by S. cerevisiae, suggesting that SBTX interferes with intracellular proton transport to the external medium. Moreover, SBTX caused cell-wall disruption, condensation/shrinkage of cytosol, pseudohyphae formation, and P. membranifaciens and C. parapsilosis cell death. SBTX is toxic to fungi at concentrations far below the dose lethal to mice and has potential in the design of new antifungal drugs or in the development of transgenic crops resistant to pathogens.
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Affiliation(s)
- Janne Keila S Morais
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, CEP 60451-970 Fortaleza, Ceará, Brazil
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21
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Park SC, Lee JR, Kim JY, Hwang I, Nah JW, Cheong H, Park Y, Hahm KS. Pr-1, a novel antifungal protein from pumpkin rinds. Biotechnol Lett 2009; 32:125-30. [DOI: 10.1007/s10529-009-0126-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Revised: 08/14/2009] [Accepted: 08/17/2009] [Indexed: 10/20/2022]
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Functional characterization of pathogen-responsive protein AtDabb1 with an antifungal activity from Arabidopsis thaliana. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2008; 1784:1918-23. [DOI: 10.1016/j.bbapap.2008.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2008] [Revised: 06/03/2008] [Accepted: 06/27/2008] [Indexed: 11/24/2022]
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Kromina KA, Ignatov AN, Abdeeva IA. Role of peptidyl-prolyl-cis/trans-isomerases in pathologic processes. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2008. [DOI: 10.1134/s199074780803001x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Segarra G, Casanova E, Bellido D, Odena MA, Oliveira E, Trillas I. Proteome, salicylic acid, and jasmonic acid changes in cucumber plants inoculated with Trichoderma asperellum strain T34. Proteomics 2008; 7:3943-52. [PMID: 17902191 DOI: 10.1002/pmic.200700173] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Trichoderma spp. is one of the most commonly used biological control agents against plant pathogens. This fungus produces changes in plant metabolism, thus increasing growth and enhancing resistance to biotic and abiotic stresses. However, its modes of action remain to be defined. In the first hours of interaction between cucumber plant roots and Trichoderma asperellum strain T34, salicylic and jasmonic acid levels and typical antipathogenic peroxidase activity increase in the cotyledons to different degrees depending on the applied concentration of the fungi. The use of 2-DE protein profiling and MS analysis allowed us to identify 28 proteins whose expression was affected in cotyledons after cucumber root colonization by Trichoderma applied at high concentrations: 17 were found to be up-regulated while 11 were down-regulated. Proteins involved in ROS scavenging, stress response, isoprenoid and ethylene biosynthesis, and in photosynthesis, photorespiration, and carbohydrate metabolism were differentially regulated by Trichoderma. The proteome changes found in this study help to give an understanding of how Trichoderma-treated plants become more resistant to pathogen attacks through the changes in expression of a set of defence-oriented proteins which can directly protect the plant or switch the metabolism to a defensive, nonassimilatory state.
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Affiliation(s)
- Guillem Segarra
- Departament de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain.
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25
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Park SC, Lee JR, Shin SO, Park Y, Lee SY, Hahm KS. Characterization of a heat-stable protein with antimicrobial activity from Arabidopsis thaliana. Biochem Biophys Res Commun 2007; 362:562-7. [PMID: 17720140 DOI: 10.1016/j.bbrc.2007.07.188] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Accepted: 07/19/2007] [Indexed: 10/23/2022]
Abstract
A heat-stable protein with antimicrobial activity was isolated from Arabidopsis thaliana plants by buffer-soluble extraction and two chromatographic procedures. The results of MALDI-TOF analysis revealed that the isolated protein shares high sequence identity with aspen SP1. To determine the exact antimicrobial properties of this protein, a cDNA encoding the protein was isolated from an A. thaliana leaf cDNA library and named AtHS1. AtHS1 mRNA was induced by exposure to external stresses, such as salicylic acid and jasmonic acid. We also analyzed the antimicrobial activity of recombinant AtHS1 expressed in Escherichia coli. This protein inhibited pathogenic fungal strains, except for Phytophthora infestans and Phytophthora nicotianae, and it exhibited antibacterial activity against E. coli and Staphylococcus aureus. These results suggest that AtHS1 shows good potential for use as a natural material in the study of antimicrobial agents.
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Affiliation(s)
- Seong-Cheol Park
- Research Center for Proteineous Materials (RCPM), Chosun University, Kwangju 501-759, Republic of Korea
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26
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Lee JR, Park SC, Kim MH, Jung JH, Shin MR, Lee DH, Cheon MG, Park Y, Hahm KS, Lee SY. Antifungal activity of rice Pex5p, a receptor for peroxisomal matrix proteins. Biochem Biophys Res Commun 2007; 359:941-6. [PMID: 17568562 DOI: 10.1016/j.bbrc.2007.05.210] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Accepted: 05/31/2007] [Indexed: 10/23/2022]
Abstract
We have purified a novel antifungal protein from blast fungus (Magnaporthe grisea)-treated rice leaves using consecutive chromatographies on CM-Sepharose ion-change, Affi-gel blue, and HPLC gel filtration columns. We determined the N-terminal peptide sequence of the purified protein and subjected it to the NCBI/BLAST database and found the protein to be a partial fragment of the peroxisomal receptor protein in rice (OsPex5p). After cloning two cDNAs encoding OsPEX5L and OsPEX5S genes that are splice variants of OsPEX5 from a rice leaf cDNA library, we investigated their antifungal properties. The recombinant proteins were expressed in Escherichia coli and found to significantly inhibit cell growth of various pathogenic fungal strains. mRNA expression of the OsPEX5L gene was induced by diverse external stresses such as rice blast fungus, fungal elicitor, and other signaling molecules including H(2)O(2), abscisic acid, jasmonic acid, and salicylic acid. These results suggest that the peroxisomal receptor protein, OsPex5p, plays a critical role in the rice defense system against diverse external stresses including fungal pathogenic attack.
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Affiliation(s)
- Jung Ro Lee
- Environmental Biotechnology National Core Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
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