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Assis RDAB, Sagawa CHD, Zaini PA, Saxe HJ, Wilmarth PA, Phinney BS, Salemi M, Moreira LM, Dandekar AM. A Secreted Chorismate Mutase from Xanthomonas arboricola pv. juglandis Attenuates Virulence and Walnut Blight Symptoms. Int J Mol Sci 2021; 22:10374. [PMID: 34638715 PMCID: PMC8508651 DOI: 10.3390/ijms221910374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 01/11/2023] Open
Abstract
Walnut blight is a significant above-ground disease of walnuts caused by Xanthomonas arboricola pv. juglandis (Xaj). The secreted form of chorismate mutase (CM), a key enzyme of the shikimate pathway regulating plant immunity, is highly conserved between plant-associated beta and gamma proteobacteria including phytopathogens belonging to the Xanthomonadaceae family. To define its role in walnut blight disease, a dysfunctional mutant of chorismate mutase was created in a copper resistant strain Xaj417 (XajCM). Infections of immature walnut Juglans regia (Jr) fruit with XajCM were hypervirulent compared with infections with the wildtype Xaj417 strain. The in vitro growth rate, size and cellular morphology were similar between the wild-type and XajCM mutant strains, however the quantification of bacterial cells by dPCR within walnut hull tissues showed a 27% increase in XajCM seven days post-infection. To define the mechanism of hypervirulence, proteome analysis was conducted to compare walnut hull tissues inoculated with the wild type to those inoculated with the XajCM mutant strain. Proteome analysis revealed 3296 Jr proteins (five decreased and ten increased with FDR ≤ 0.05) and 676 Xaj417 proteins (235 increased in XajCM with FDR ≤ 0.05). Interestingly, the most abundant protein in Xaj was a polygalacturonase, while in Jr it was a polygalacturonase inhibitor. These results suggest that this secreted chorismate mutase may be an important virulence suppressor gene that regulates Xaj417 virulence response, allowing for improved bacterial survival in the plant tissues.
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Affiliation(s)
- Renata de A. B. Assis
- Department of Plant Sciences, University of California, Davis, CA 95616, USA; (R.d.A.B.A.); (C.H.D.S.); (P.A.Z.); (H.J.S.)
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, MG, Brazil
| | - Cíntia H. D. Sagawa
- Department of Plant Sciences, University of California, Davis, CA 95616, USA; (R.d.A.B.A.); (C.H.D.S.); (P.A.Z.); (H.J.S.)
| | - Paulo A. Zaini
- Department of Plant Sciences, University of California, Davis, CA 95616, USA; (R.d.A.B.A.); (C.H.D.S.); (P.A.Z.); (H.J.S.)
| | - Houston J. Saxe
- Department of Plant Sciences, University of California, Davis, CA 95616, USA; (R.d.A.B.A.); (C.H.D.S.); (P.A.Z.); (H.J.S.)
| | - Phillip A. Wilmarth
- Proteomics Shared Resource, Oregon Health and Science University, Portland, OR 97239, USA;
| | - Brett S. Phinney
- Proteomics Core Facility, University of California, Davis, CA 95616, USA; (B.S.P.); (M.S.)
| | - Michelle Salemi
- Proteomics Core Facility, University of California, Davis, CA 95616, USA; (B.S.P.); (M.S.)
| | - Leandro M. Moreira
- Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Núcleo de Pesquisas em Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, MG, Brazil
| | - Abhaya M. Dandekar
- Department of Plant Sciences, University of California, Davis, CA 95616, USA; (R.d.A.B.A.); (C.H.D.S.); (P.A.Z.); (H.J.S.)
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de Laia ML, Moreira LM, Gonçalves JF, Ferro MIT, Rodrigues ACP, dos Santos JN, Felestrino ÉB, Ferro JA. Gene expression analysis identifies hypothetical genes that may be critical during the infection process of Xanthomonas citri subsp. citri. ELECTRON J BIOTECHN 2019. [DOI: 10.1016/j.ejbt.2019.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Schultz LG, Tasic L, Fattori J. Chaperone-Assisted Secretion in Bacteria: Protein and DNA Transport via Cell Membranes. CURR PROTEOMICS 2018. [DOI: 10.2174/1570164615666180820154821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Bacteria use an impressive arsenal of secretion systems (1-7) to infect their host cells by exporting
proteins, DNA and DNA-protein complexes via cell membranes. They use chaperone-usher
pathways for host colonization as well. To be targeted for transportation across one (Gram-positive) or
two membranes (Gram-negative), clients must be selected, guided and unfolded to pass through type 3
(T3SS) or type 4 (T4SS) secretion systems. For these processes, bacteria count on secretory chaperones
that guide macromolecular transport via membranes. Moreover, if we know how these processes
occur, we might be able to stop them and avoid bacterial infections. Thus, structural and functional
characterizations of secretory chaperones become interesting, as these proteins are the perfect targets
for blocking bacteria action. Therefore, this review focuses on a story of known mechanisms of chaperone-
secretion assisted transport with special attention on virulence proteins and DNA transport in
bacteria.
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Affiliation(s)
- Lilian Goulart Schultz
- Chemical Biology Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, 13083-970, SP, Brazil
| | - Ljubica Tasic
- Chemical Biology Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, 13083-970, SP, Brazil
| | - Juliana Fattori
- Chemical Biology Laboratory, Organic Chemistry Department, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, 13083-970, SP, Brazil
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Ballottin D, Fulaz S, Cabrini F, Tsukamoto J, Durán N, Alves OL, Tasic L. Antimicrobial textiles: Biogenic silver nanoparticles against Candida and Xanthomonas. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:582-589. [PMID: 28415502 DOI: 10.1016/j.msec.2017.02.110] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/15/2016] [Accepted: 02/21/2017] [Indexed: 11/29/2022]
Abstract
This paper introduces cotton fibers impregnated with biogenic silver nanoparticles (AgNPs), synthesized from a Fusarium oxysporum fungal filtrate (FF) solution, and open up the possibility for their use in medical environment and agriculture clothing as means to avoid microbial spreading. After thorough AgNPs characterization, regarding their physical, chemical and biochemical properties, Minimum Inhibitory Concentrations (MIC) against some human and orange tree pathogens were determined. We report the strong AgNPs activity against Candida parapsilosis and Xanthomonas axonopodis pv. citri (Xac) that was morphologically characterized, pointing to strong AgNPs effects on microorganisms' membranes. Cotton fibers were then impregnated with AgNPs suspension and these maintained strong antimicrobial activity even after repeated mechanical washing cycles (up to 10). Reported data might point to an application for biogenic AgNPs as potent agrochemicals, as well as, to their application in textiles for antiseptic clothing for medical and agronomic applications.
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Affiliation(s)
- Daniela Ballottin
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil; NanoBioss Laboratory, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Stephanie Fulaz
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Flávia Cabrini
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Junko Tsukamoto
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Nelson Durán
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil; NanoBioss Laboratory, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil; Brazilian Nanotechnology National Laboratory (LNNano-CNPEM), Campinas, SP, Brazil
| | - Oswaldo L Alves
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil; NanoBioss Laboratory, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Ljubica Tasic
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil; NanoBioss Laboratory, Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP, Brazil.
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Awan AT, Tsukamoto J, Tasic L. Orange waste as a biomass for 2G-ethanol production using low cost enzymes and co-culture fermentation. RSC Adv 2013. [DOI: 10.1039/c3ra43722a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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