1
|
Raeisi H, Safarnejad MR, Alavi SM, de Oliveira Andrade M, Farrokhi N, Elahinia SA. Transient expression of anti-HrpE scFv antibody reduces the hypersensitive response in non-host plant against bacterial phytopathogen Xanthomonas citri subsp. citri. Sci Rep 2024; 14:7121. [PMID: 38531981 DOI: 10.1038/s41598-024-57355-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/18/2024] [Indexed: 03/28/2024] Open
Abstract
Citrus canker is a bacterial disease caused by Xanthomonas citri subsp. citri (Xcc) that affects the citrus industry worldwide. Hrp pili subunits (HrpE), an essential component of Type III secretion system (T3SS) bacteria, play a crucial role in the pathogenesis of Xcc by transporting effector proteins into the host cell and causing canker symptoms. Therefore, development of antibodies that block HrpE can suppress disease progression. In this study, a specific scFv detecting HrpE was developed using phage display technique and characterized using sequencing, ELISA, Western blotting, and molecular docking. In addition, a plant expression vector of pCAMBIA-scFvH6 was constructed and agroinfiltrated into Nicotiana tabacum cv. Samson leaves. The hypersensitive response (HR) in the leaves of transformed and non-transformed plants was evaluated by inoculating leaves with Xcc. After three rounds of biopanning of the phage library, a specific human scFv antibody, named scFvH6, was identified that showed high binding activity against HrpE in ELISA and Western blotting. Molecular docking results showed that five intermolecular hydrogen bonds are involved in HrpE-scFvH6 interaction, confirming the specificity and high binding activity of scFvH6. Successful transient expression of pCAMBIA-scFvH6 in tobacco leaves was verified using immunoassay tests. The binding activity of plant-produced scFvH6 to detect HrpE in Western blotting and ELISA was similar to that of bacterial-produced scFvH6 antibody. Interestingly, tobacco plants expressing scFvH6 showed a remarkable reduction in HR induced by Xcc compared with control plants, so that incidence of necrotic lesions was significantly higher in non-transformed controls (≥ 1.5 lesions/cm2) than in the plants producing scFvH6 (≤ 0.5 lesions/cm2) after infiltration with Xcc inoculum. Our results revealed that the expression of scFvH6 in tobacco leaves can confer resistance to Xcc, indicating that this approach could be considered to provide resistance to citrus bacterial canker disease.
Collapse
Affiliation(s)
- Hamideh Raeisi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Shahid Arabi Ave., Yemen St., Velenjak, Tehran, Iran.
| | - Mohammad Reza Safarnejad
- Department of Plant Viruses, Agricultural Research Education and Extension Organization of Iran, Iranian Research Institute of Plant Protection, Tehran, Iran
| | - Seyed Mehdi Alavi
- Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Maxuel de Oliveira Andrade
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Naser Farrokhi
- Departement of Cell & Molecular Biology, Faculty of Life Sciences & Biotechnology, Shahid Beheshti University G.C, Evin, Tehran, Iran
| | - Seyed Ali Elahinia
- Department of Plant Protection, College of Agricultural Sciences, Guilan University, Rasht, Iran
| |
Collapse
|
2
|
Tiwari P, Srivastava Y, Sharma A, Vinayagam R. Antimicrobial Peptides: The Production of Novel Peptide-Based Therapeutics in Plant Systems. Life (Basel) 2023; 13:1875. [PMID: 37763279 PMCID: PMC10532476 DOI: 10.3390/life13091875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/25/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The increased prevalence of antibiotic resistance is alarming and has a significant impact on the economies of emerging and underdeveloped nations. The redundancy of antibiotic discovery platforms (ADPs) and injudicious use of conventional antibiotics has severely impacted millions, across the globe. Potent antimicrobials from biological sources have been extensively explored as a ray of hope to counter the growing menace of antibiotic resistance in the population. Antimicrobial peptides (AMPs) are gaining momentum as powerful antimicrobial therapies to combat drug-resistant bacterial strains. The tremendous therapeutic potential of natural and synthesized AMPs as novel and potent antimicrobials is highlighted by their unique mode of action, as exemplified by multiple research initiatives. Recent advances and developments in antimicrobial discovery and research have increased our understanding of the structure, characteristics, and function of AMPs; nevertheless, knowledge gaps still need to be addressed before these therapeutic options can be fully exploited. This thematic article provides a comprehensive insight into the potential of AMPs as potent arsenals to counter drug-resistant pathogens, a historical overview and recent advances, and their efficient production in plants, defining novel upcoming trends in drug discovery and research. The advances in synthetic biology and plant-based expression systems for AMP production have defined new paradigms in the efficient production of potent antimicrobials in plant systems, a prospective approach to countering drug-resistant pathogens.
Collapse
Affiliation(s)
- Pragya Tiwari
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea;
| | - Yashdeep Srivastava
- RR Institute of Modern Technology, Dr. A.P.J. Abdul Kalam Technical University, Sitapur Road, Lucknow 226201, Uttar Pradesh, India;
| | - Abhishek Sharma
- Department of Biotechnology and Bioengineering, Institute of Advanced Research, Koba Institutional Area, Gandhinagar 392426, Gujarat, India;
| | - Ramachandran Vinayagam
- Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea;
| |
Collapse
|
3
|
Abstract
Plant disease control requires novel approaches to mitigate the spread of and losses caused by current, emerging, and re-emerging diseases and to adapt plant protection to global climate change and the restrictions on the use of conventional pesticides. Currently, disease management relies mainly on biopesticides, which are required for the sustainable use of plant-protection products. Functional peptides are candidate biopesticides because they originate from living organisms or are synthetic analogs and provide novel mechanisms of action against plant pathogens. Hundreds of compounds exist that cover an extensive range of activities against viruses, bacteria and phytoplasmas, fungi and oomycetes, and nematodes. Natural sources, chemical synthesis, and biotechnological platforms may provide peptides at large scale for the industry and growers. The main challenges for their use in plant disease protection are (a) the requirement of stability in the plant environment and counteracting resistance in pathogen populations, (b) the need to develop suitable formulations to increase their shelf life and methods of application, (c) the selection of compounds with acceptable toxicological profiles, and (d) the high cost of production for agricultural purposes. In the near future, it is expected that several functional peptides will be commercially available for plant disease control, but more effort is needed to validate their efficacy at the field level and fulfill the requirements of the regulatory framework.
Collapse
Affiliation(s)
- Emilio Montesinos
- Institute of Food and Agricultural Technology, Plant Pathology-CIDSAV, University of Girona, Girona, Spain;
| |
Collapse
|
4
|
Su H, Wang Y, Xu J, Omar AA, Grosser JW, Calovic M, Zhang L, Feng Y, Vakulskas CA, Wang N. Generation of the transgene-free canker-resistant Citrus sinensis using Cas12a/crRNA ribonucleoprotein in the T0 generation. Nat Commun 2023; 14:3957. [PMID: 37402755 DOI: 10.1038/s41467-023-39714-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/26/2023] [Indexed: 07/06/2023] Open
Abstract
Citrus canker caused by Xanthomonas citri subsp. citri (Xcc) is a destructive citrus disease worldwide. Generating disease-resistant cultivars is the most effective, environmentally friendly and economic approach for disease control. However, citrus traditional breeding is lengthy and laborious. Here, we develop transgene-free canker-resistant Citrus sinensis lines in the T0 generation within 10 months through transformation of embryogenic protoplasts with Cas12a/crRNA ribonucleoprotein to edit the canker susceptibility gene CsLOB1. Among the 39 regenerated lines, 38 are biallelic/homozygous mutants, demonstrating a 97.4% biallelic/homozygous mutation rate. No off-target mutations are detected in the edited lines. Canker resistance of the cslob1-edited lines results from both abolishing canker symptoms and inhibiting Xcc growth. The transgene-free canker-resistant C. sinensis lines have received regulatory approval by USDA APHIS and are exempted from EPA regulation. This study provides a sustainable and efficient citrus canker control solution and presents an efficient transgene-free genome-editing strategy for citrus and other crops.
Collapse
Affiliation(s)
- Hang Su
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | - Yuanchun Wang
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | - Jin Xu
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | - Ahmad A Omar
- Citrus Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Jude W Grosser
- Citrus Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | - Milica Calovic
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | - Liyang Zhang
- Integrated DNA Technologies, Inc, Coralville, IA, USA
| | - Yu Feng
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA
| | | | - Nian Wang
- Citrus Research and Education Center, Department of Microbiology and Cell Science, Institute of Food and Agricultural Sciences, University of Florida, Lake Alfred, FL, USA.
| |
Collapse
|
5
|
Exploring Active Peptides with Antimicrobial Activity In Planta against Xylella fastidiosa. BIOLOGY 2022; 11:biology11111685. [DOI: 10.3390/biology11111685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/24/2022]
Abstract
Xylella fastidiosa (Xf) is a xylem-limited quarantine plant bacterium and one of the most harmful agricultural pathogens across the world. Despite significant research efforts, neither a direct treatment nor an efficient strategy has yet been developed for combatting Xylella-associated diseases. Antimicrobial peptides (AMPs) have been gaining interest as a promising sustainable tool to control pathogens due to their unique mechanism of action, broad spectrum of activity, and low environmental impact. In this study, we disclose the bioactivity of nine AMPs reported in the literature to be efficient against human and plant pathogen bacteria, i.e., Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa, against Xf, through in vitro and in vivo experiments. Based on viable-quantitative PCR (v-qPCR), fluorescence microscopy (FM), optical density (OD), and transmission electron microscopy (TEM) assays, peptides Ascaphin-8 (GF19), DASamP1 (FF13), and DASamP2 (IL14) demonstrated the highest bactericidal and antibiofilm activities and were more efficient than the peptide PB178 (KL29), reported as one of the most potent AMPs against Xf at present. Furthermore, these AMPs showed low to no toxicity when tested on eukaryotic cells. In in planta tests, no Xf disease symptoms were noticed in Nicotiana tabacum plants treated with the AMPs 40 days post inoculation. This study highlighted the high antagonistic activity of newly tested AMP candidates against Xf, which could lead to the development of promising eco-friendly management of Xf-related diseases.
Collapse
|
6
|
Deo S, Turton KL, Kainth T, Kumar A, Wieden HJ. Strategies for improving antimicrobial peptide production. Biotechnol Adv 2022; 59:107968. [PMID: 35489657 DOI: 10.1016/j.biotechadv.2022.107968] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 01/10/2023]
Abstract
Antimicrobial peptides (AMPs) found in a wide range of animal, insect, and plant species are host defense peptides forming an integral part of their innate immunity. Although the exact mode of action of some AMPs is yet to be deciphered, many exhibit membrane lytic activity or interact with intracellular targets. The ever-growing threat of antibiotic resistance has brought attention to research on AMPs to enhance their clinical use as a therapeutic alternative. AMPs have several advantages over antibiotics such as broad range of antimicrobial activities including anti-fungal, anti-viral and anti-bacterial, and have not reported to contribute to resistance development. Despite the numerous studies to develop efficient production methods for AMPs, limitations including low yield, degradation, and loss of activity persists in many recombinant approaches. In this review, we outline available approaches for AMP production and various expression systems used to achieve higher yield and quality. In addition, recent advances in recombinant strategies, suitable fusion protein partners, and other molecular engineering strategies for improved AMP production are surveyed.
Collapse
Affiliation(s)
- Soumya Deo
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Kristi L Turton
- Alberta RNA Research and Training Institute, Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Dr. W., Lethbridge, AB T1K 3M4, Canada
| | - Tajinder Kainth
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Ayush Kumar
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Hans-Joachim Wieden
- Department of Microbiology, Buller building, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
| |
Collapse
|
7
|
Sharma A, Abrahamian P, Carvalho R, Choudhary M, Paret ML, Vallad GE, Jones JB. Future of Bacterial Disease Management in Crop Production. ANNUAL REVIEW OF PHYTOPATHOLOGY 2022; 60:259-282. [PMID: 35790244 DOI: 10.1146/annurev-phyto-021621-121806] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bacterial diseases are a constant threat to crop production globally. Current management strategies rely on an array of tactics, including improved cultural practices; application of bactericides, plant activators, and biocontrol agents; and use of resistant varieties when available. However, effective management remains a challenge, as the longevity of deployed tactics is threatened by constantly changing bacterial populations. Increased scrutiny of the impact of pesticides on human and environmental health underscores the need for alternative solutions that are durable, sustainable, accessible to farmers, and environmentally friendly. In this review, we discuss the strengths and shortcomings of existing practices and dissect recent advances that may shape the future of bacterial disease management. We conclude that disease resistance through genome modification may be the most effective arsenal against bacterial diseases. Nonetheless, more research is necessary for developing novel bacterial disease management tactics to meet the food demand of a growing global population.
Collapse
Affiliation(s)
- Anuj Sharma
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
| | - Peter Abrahamian
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
- Gulf Coast Research and Education Center, University of Florida, Wimauma, Florida, USA
- Plant Pathogen Confirmatory Diagnostic Laboratory, USDA-APHIS, Beltsville, Maryland, USA
| | - Renato Carvalho
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
| | - Manoj Choudhary
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
| | - Mathews L Paret
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
- North Florida Research and Education Center, University of Florida, Quincy, Florida, USA
| | - Gary E Vallad
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
- Gulf Coast Research and Education Center, University of Florida, Wimauma, Florida, USA
| | - Jeffrey B Jones
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA;
| |
Collapse
|
8
|
Longhi TV, de Carvalho DU, Duin IM, da Cruz MA, Leite Junior RP. Transgenic Sweet Orange Expressing the Sarcotoxin IA Gene Produces High-Quality Fruit and Shows Tolerance to ‘Candidatus Liberibacter asiaticus’. Int J Mol Sci 2022; 23:ijms23169300. [PMID: 36012564 PMCID: PMC9409437 DOI: 10.3390/ijms23169300] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/14/2022] [Accepted: 08/15/2022] [Indexed: 12/02/2022] Open
Abstract
Huanglongbing (otherwise known as HLB or greening) is currently the most devastating citrus disease worldwide. HLB is primarily associated with the phloem-inhabiting bacterium ‘Candidatus Liberibacter asiaticus’ (CLas). Currently, there are no citrus species resistant to CLas. Genetic transformation is one of the most effective approaches used to induce resistance against plant diseases. Antimicrobial peptides (AMPs) have shown potential breakthroughs to improve resistance to bacterial diseases in plants. In this paper, we confirm the Agrobacterium-mediated transformation of Pera sweet orange expressing the AMP sarcotoxin IA (stx IA) gene isolated from the flesh fly Sarcophaga peregrina and its reaction to CLas, involving plant performance and fruit quality assessments. Four independent transgenic lines, STX-5, STX-11, STX-12, and STX-13, and a non-transgenic control, were graft-inoculated with CLas. Based on our findings, none of the transgenic plants were immune to CLas. However, the STX-5 and STX-11 lines showed reduced susceptibility to HLB with mild disease symptoms and low incidence of plants with the presence of CLas. Fruit and juice quality were not affected by the genetic transformation. Further, no residues of the sarcotoxin IA protein were found in the juice of the STX-11 and STX-12 fruits, though detected in the juice of the STX-5 and STX-13 lines, as revealed by the immunoblotting test. However, juices from all transgenic lines showed low traces of sarcotoxin IA peptide in its composition. The accumulation of this peptide did not cause any deleterious effects on plants or in fruit/juice. Our findings reinforce the challenges of identifying novel approaches to managing HLB.
Collapse
Affiliation(s)
- Talita Vigo Longhi
- Área de Proteção de Plantas, Instituto de Desenvolvimento Rural do Paraná—IAPAR/Emater (IDR-Paraná), Celso Garcia Cid Road, km 375, Londrina 86047-902, PR, Brazil
- Centro de Ciências Agrárias, Universidade Estadual de Londrina (UEL), Celso Garcia Cid Road, km 380, Londrina 86057-970, PR, Brazil
| | - Deived Uilian de Carvalho
- Área de Proteção de Plantas, Instituto de Desenvolvimento Rural do Paraná—IAPAR/Emater (IDR-Paraná), Celso Garcia Cid Road, km 375, Londrina 86047-902, PR, Brazil
- Centro de Ciências Agrárias, Universidade Estadual de Londrina (UEL), Celso Garcia Cid Road, km 380, Londrina 86057-970, PR, Brazil
- Departamento de Pesquisa e Desenvolvimento, Fundo de Defesa da Citricultura (Fundecitrus), 201 Dr. Adhemar Pereira de Barros, Araraquara 14807-040, SP, Brazil
- Correspondence:
| | - Izabela Moura Duin
- Área de Proteção de Plantas, Instituto de Desenvolvimento Rural do Paraná—IAPAR/Emater (IDR-Paraná), Celso Garcia Cid Road, km 375, Londrina 86047-902, PR, Brazil
- Centro de Ciências Agrárias, Universidade Estadual de Londrina (UEL), Celso Garcia Cid Road, km 380, Londrina 86057-970, PR, Brazil
| | - Maria Aparecida da Cruz
- Área de Proteção de Plantas, Instituto de Desenvolvimento Rural do Paraná—IAPAR/Emater (IDR-Paraná), Celso Garcia Cid Road, km 375, Londrina 86047-902, PR, Brazil
- Centro de Ciências Agrárias, Universidade Estadual de Londrina (UEL), Celso Garcia Cid Road, km 380, Londrina 86057-970, PR, Brazil
| | - Rui Pereira Leite Junior
- Área de Proteção de Plantas, Instituto de Desenvolvimento Rural do Paraná—IAPAR/Emater (IDR-Paraná), Celso Garcia Cid Road, km 375, Londrina 86047-902, PR, Brazil
| |
Collapse
|
9
|
Merritt BA, Zhang X, Triplett EW, Mou Z, Orbović V. Selection of transgenic citrus plants based on glyphosate tolerance conferred by a citrus 5-enolpyruvylshikimate-3-phosphate synthase variant. PLANT CELL REPORTS 2021; 40:1947-1956. [PMID: 34313832 DOI: 10.1007/s00299-021-02760-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/19/2021] [Indexed: 05/21/2023]
Abstract
KEY MESSAGE We have defined the conditions for citrus transformations using glyphosate as selection agent. This protocol results in high transformation rate and low incidence of chimeric shoots. Glyphosate, the most widely used herbicide in the world, specifically inhibits 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), an essential enzyme of the shikimate pathway. Various laboratory-generated or naturally evolved glyphosate-resistant EPSPS variants have been used to produce glyphosate-tolerant transgenic crops, enabling highly effective weed control in agriculture. In this study, we explored the potential of using a citrus EPSPS variant that mimics the previously reported Eleusine indica glyphosate-resistant TIPS (T102I + P106S) mutant for selection of transgenic citrus plants in the presence of glyphosate. We found that glyphosate did not suppress bud formation on 'Duncan' grapefruit seedling explants, but inhibited non-transgenic bud outgrowth to produce shoots in a concentration-dependent manner. At certain concentrations, glyphosate had dramatic effect on the transformation rate and the percentage of non-chimeric transgenic shoots in this newly developed selection system. Specifically, at 0, 10, 20, and 50 μM of glyphosate, the citrus TIPS EPSPS-based selection resulted in transformation rates of 4.02, 5.04, 14.46, and 40.78%, respectively, and 6.41, 23.96, 42.94, and 40.17% of non-chimeric transgenic shoots, respectively. These results indicate that the citrus TIPS EPSPS-glyphosate selection system is highly efficient and can be used as an alternative to antibiotic-based selection methods in citrus genetic transformation. Furthermore, the selection conditions defined in this study are expected to greatly facilitate the production of genetically modified, market-friendly citrus plants, such as cisgenic and intragenic plants.
Collapse
Affiliation(s)
- Benjamin A Merritt
- Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, 33850, USA
| | - Xudong Zhang
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA
| | - Eric W Triplett
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA
| | - Zhonglin Mou
- Department of Microbiology and Cell Science, University of Florida, P.O. Box 110700, Gainesville, FL, 32611, USA.
| | - Vladimir Orbović
- Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL, 33850, USA.
| |
Collapse
|
10
|
Shanmugaraj B, Bulaon CJI, Malla A, Phoolcharoen W. Biotechnological Insights on the Expression and Production of Antimicrobial Peptides in Plants. Molecules 2021; 26:4032. [PMID: 34279372 PMCID: PMC8272150 DOI: 10.3390/molecules26134032] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
The emergence of drug-resistant pathogens poses a serious critical threat to global public health and requires immediate action. Antimicrobial peptides (AMPs) are a class of short peptides ubiquitously found in all living forms, including plants, insects, mammals, microorganisms and play a significant role in host innate immune system. These peptides are considered as promising candidates to treat microbial infections due to its distinct advantages over conventional antibiotics. Given their potent broad spectrum of antimicrobial action, several AMPs are currently being evaluated in preclinical/clinical trials. However, large quantities of highly purified AMPs are vital for basic research and clinical settings which is still a major bottleneck hindering its application. This can be overcome by genetic engineering approaches to produce sufficient amount of diverse peptides in heterologous host systems. Recently plants are considered as potential alternatives to conventional protein production systems such as microbial and mammalian platforms due to their unique advantages such as rapidity, scalability and safety. In addition, AMPs can also be utilized for development of novel approaches for plant protection thereby increasing the crop yield. Hence, in order to provide a spotlight for the expression of AMP in plants for both clinical or agricultural use, the present review presents the importance of AMPs and efforts aimed at producing recombinant AMPs in plants for molecular farming and plant protection so far.
Collapse
Affiliation(s)
| | - Christine Joy I Bulaon
- Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Waranyoo Phoolcharoen
- Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| |
Collapse
|
11
|
Alquézar B, Carmona L, Bennici S, Peña L. Engineering of citrus to obtain huanglongbing resistance. Curr Opin Biotechnol 2021; 70:196-203. [PMID: 34198205 DOI: 10.1016/j.copbio.2021.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 12/23/2022]
Abstract
Huanglongbing (HLB) disease is threatening the sustainability of citriculture in affected regions because of its rapid spread and the severity of the symptoms it induces. Herein, we summarise the main research findings that can be exploited to develop HLB-resistant cultivars. A major bottleneck has been the lack of a system for the ex vivo cultivation of HLB-associated bacteria (CLs) in true plant hosts, which precludes the evaluation of target genes/metabolites in reliable plant/pathogen/vector environments. With regard to HLB vectors, several biotechnologies which have been proven in laboratory settings to be effective for insect control are presented. Finally, new genotypes that are resistant to CLs or their insect vectors are described, and the most relevant strategies for fighting HLB are highlighted.
Collapse
Affiliation(s)
- Berta Alquézar
- Laboratório de Biotecnologia Vegetal, Pesquisa & Desenvolvimento, Fundo de Defesa da Citricultura (Fundecitrus), Vila Melhado, 14807-040 Araraquara, São Paulo, Brazil; Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Politécnica de Valencia (UPV), 46022 Valencia, Spain
| | - Lourdes Carmona
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Politécnica de Valencia (UPV), 46022 Valencia, Spain
| | - Stefania Bennici
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Politécnica de Valencia (UPV), 46022 Valencia, Spain
| | - Leandro Peña
- Laboratório de Biotecnologia Vegetal, Pesquisa & Desenvolvimento, Fundo de Defesa da Citricultura (Fundecitrus), Vila Melhado, 14807-040 Araraquara, São Paulo, Brazil; Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Politécnica de Valencia (UPV), 46022 Valencia, Spain.
| |
Collapse
|
12
|
Mariz-Ponte N, Regalado L, Gimranov E, Tassi N, Moura L, Gomes P, Tavares F, Santos C, Teixeira C. A Synergic Potential of Antimicrobial Peptides against Pseudomonas syringae pv. actinidiae. Molecules 2021; 26:molecules26051461. [PMID: 33800273 PMCID: PMC7962642 DOI: 10.3390/molecules26051461] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/22/2021] [Accepted: 03/03/2021] [Indexed: 12/20/2022] Open
Abstract
Pseudomonas syringae pv. actinidiae (Psa) is the pathogenic agent responsible for the bacterial canker of kiwifruit (BCK) leading to major losses in kiwifruit productions. No effective treatments and measures have yet been found to control this disease. Despite antimicrobial peptides (AMPs) having been successfully used for the control of several pathogenic bacteria, few studies have focused on the use of AMPs against Psa. In this study, the potential of six AMPs (BP100, RW-BP100, CA-M, 3.1, D4E1, and Dhvar-5) to control Psa was investigated. The minimal inhibitory and bactericidal concentrations (MIC and MBC) were determined and membrane damaging capacity was evaluated by flow cytometry analysis. Among the tested AMPs, the higher inhibitory and bactericidal capacity was observed for BP100 and CA-M with MIC of 3.4 and 3.4-6.2 µM, respectively and MBC 3.4-10 µM for both. Flow cytometry assays suggested a faster membrane permeation for peptide 3.1, in comparison with the other AMPs studied. Peptide mixtures were also tested, disclosing the high efficiency of BP100:3.1 at low concentration to reduce Psa viability. These results highlight the potential interest of AMP mixtures against Psa, and 3.1 as an antimicrobial molecule that can improve other treatments in synergic action.
Collapse
Affiliation(s)
- Nuno Mariz-Ponte
- Biology Department, Faculty of Science, University of Porto (FCUP), 4169-007 Porto, Portugal; (L.R.); (E.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Science (FCUP), University of Porto, 4169-007 Porto, Portugal
- CIBIO—Research Centre in Biodiversity and Genetic Resources, In-BIO-Associate Laboratory, Microbial Diversity and Evolution Group, University of Porto (UP), 4485-661 Vairão, Portugal
- Correspondence:
| | - Laura Regalado
- Biology Department, Faculty of Science, University of Porto (FCUP), 4169-007 Porto, Portugal; (L.R.); (E.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Science (FCUP), University of Porto, 4169-007 Porto, Portugal
| | - Emil Gimranov
- Biology Department, Faculty of Science, University of Porto (FCUP), 4169-007 Porto, Portugal; (L.R.); (E.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Science (FCUP), University of Porto, 4169-007 Porto, Portugal
| | - Natália Tassi
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences (FCUP), University of Porto, 4169-007 Porto, Portugal; (N.T.); (P.G.); (C.T.)
| | - Luísa Moura
- CISAS—Centre for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal;
| | - Paula Gomes
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences (FCUP), University of Porto, 4169-007 Porto, Portugal; (N.T.); (P.G.); (C.T.)
| | - Fernando Tavares
- Biology Department, Faculty of Science, University of Porto (FCUP), 4169-007 Porto, Portugal; (L.R.); (E.G.); (F.T.); (C.S.)
- CIBIO—Research Centre in Biodiversity and Genetic Resources, In-BIO-Associate Laboratory, Microbial Diversity and Evolution Group, University of Porto (UP), 4485-661 Vairão, Portugal
| | - Conceição Santos
- Biology Department, Faculty of Science, University of Porto (FCUP), 4169-007 Porto, Portugal; (L.R.); (E.G.); (F.T.); (C.S.)
- LAQV-REQUIMTE, Biology Department, Faculty of Science (FCUP), University of Porto, 4169-007 Porto, Portugal
| | - Cátia Teixeira
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences (FCUP), University of Porto, 4169-007 Porto, Portugal; (N.T.); (P.G.); (C.T.)
| |
Collapse
|
13
|
Conti G, Gardella V, Vandecaveye MA, Gomez CA, Joris G, Hauteville C, Burdyn L, Almasia NI, Nahirñak V, Vazquez-Rovere C, Gochez AM, Furman N, Lezcano CC, Kobayashi K, García ML, Canteros BI, Hopp HE, Reyes CA. Transgenic Citrange troyer rootstocks overexpressing antimicrobial potato Snakin-1 show reduced citrus canker disease symptoms. J Biotechnol 2020; 324:99-102. [PMID: 32998033 DOI: 10.1016/j.jbiotec.2020.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/31/2020] [Accepted: 09/14/2020] [Indexed: 01/06/2023]
Abstract
Citrus canker is a major disease caused by Xanthomonas citri pv. citri. Snakin-1 is an antimicrobial peptide, which was previously shown to be effective against different bacterial and fungal diseases in potato, wheat and lettuce when expressed in transgenic plants. We generated transgenic Citrange Troyer citrus rootstocks constitutively expressing this peptide and 5 different transgenic lines were challenged against virulent X. citri isolates. Challenge assays conducted in vitro using detached leaves and in planta by infiltration revealed a significant reduction of the number and size of canker lesions in some of the transgenic lines.
Collapse
Affiliation(s)
- G Conti
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), INTA-CONICET, Instituto de Biotecnología CICVyA-INTA, Hurlingham, Provincia de Buenos Aires, Argentina; Cátedra de Genética, Facultad de Agronomía, Universidad de Buenos Aires, Argentina
| | - V Gardella
- Instituto de Biotecnología y Biología Molecular, CCT-La Plata, CONICET - UNLP, La Plata, Provincia de Buenos Aires, Argentina
| | - M A Vandecaveye
- EEA Bella Vista, INTA, Bella Vista, Provincia de Corrientes, Argentina
| | - C A Gomez
- EEA Concordia, INTA, Concordia, Provincia de Entre Ríos, Argentina
| | - G Joris
- EEA Concordia, INTA, Concordia, Provincia de Entre Ríos, Argentina
| | - C Hauteville
- EEA Concordia, INTA, Concordia, Provincia de Entre Ríos, Argentina
| | - L Burdyn
- EEA Concordia, INTA, Concordia, Provincia de Entre Ríos, Argentina
| | - N I Almasia
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), INTA-CONICET, Instituto de Biotecnología CICVyA-INTA, Hurlingham, Provincia de Buenos Aires, Argentina
| | - V Nahirñak
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), INTA-CONICET, Instituto de Biotecnología CICVyA-INTA, Hurlingham, Provincia de Buenos Aires, Argentina
| | - C Vazquez-Rovere
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), INTA-CONICET, Instituto de Biotecnología CICVyA-INTA, Hurlingham, Provincia de Buenos Aires, Argentina
| | - A M Gochez
- EEA Bella Vista, INTA, Bella Vista, Provincia de Corrientes, Argentina
| | - N Furman
- Laboratorio de Agrobiotecnología, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular (FBMC), Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA, Buenos Aires, Argentina
| | - C C Lezcano
- EEA Bella Vista, INTA, Bella Vista, Provincia de Corrientes, Argentina
| | - K Kobayashi
- Laboratorio de Agrobiotecnología, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular (FBMC), Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA, Buenos Aires, Argentina
| | - M L García
- Instituto de Biotecnología y Biología Molecular, CCT-La Plata, CONICET - UNLP, La Plata, Provincia de Buenos Aires, Argentina
| | - B I Canteros
- EEA Bella Vista, INTA, Bella Vista, Provincia de Corrientes, Argentina
| | - H E Hopp
- Instituto de Agrobiotecnología y Biología Molecular (IABiMo), INTA-CONICET, Instituto de Biotecnología CICVyA-INTA, Hurlingham, Provincia de Buenos Aires, Argentina; Laboratorio de Agrobiotecnología, Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología, Biología Molecular y Celular (FBMC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - C A Reyes
- Instituto de Biotecnología y Biología Molecular, CCT-La Plata, CONICET - UNLP, La Plata, Provincia de Buenos Aires, Argentina.
| |
Collapse
|
14
|
Rooney WM, Grinter RW, Correia A, Parkhill J, Walker DC, Milner JJ. Engineering bacteriocin-mediated resistance against the plant pathogen Pseudomonas syringae. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1296-1306. [PMID: 31705720 PMCID: PMC7152609 DOI: 10.1111/pbi.13294] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 10/16/2019] [Accepted: 10/27/2019] [Indexed: 05/20/2023]
Abstract
The plant pathogen, Pseudomonas syringae (Ps), together with related Ps species, infects and attacks a wide range of agronomically important crops, including tomato, kiwifruit, pepper, olive and soybean, causing economic losses. Currently, chemicals and introduced resistance genes are used to protect plants against these pathogens but have limited success and may have adverse environmental impacts. Consequently, there is a pressing need to develop alternative strategies to combat bacterial disease in crops. One such strategy involves using narrow-spectrum protein antibiotics (so-called bacteriocins), which diverse bacteria use to compete against closely related species. Here, we demonstrate that one bacteriocin, putidacin L1 (PL1), can be expressed in an active form at high levels in Arabidopsis and in Nicotiana benthamiana in planta to provide effective resistance against diverse pathovars of Ps. Furthermore, we find that Ps strains that mutate to acquire tolerance to PL1 lose their O-antigen, exhibit reduced motility and still cannot induce disease symptoms in PL1-transgenic Arabidopsis. Our results provide proof-of-principle that the transgene-mediated expression of a bacteriocin in planta can provide effective disease resistance to bacterial pathogens. Thus, the expression of bacteriocins in crops might offer an effective strategy for managing bacterial disease, in the same way that the genetic modification of crops to express insecticidal proteins has proven to be an extremely successful strategy for pest management. Crucially, nearly all genera of bacteria, including many plant pathogenic species, produce bacteriocins, providing an extensive source of these antimicrobial agents.
Collapse
Affiliation(s)
- William M. Rooney
- Plant Science GroupInstitute of Molecular, Cell and Systems Biology & School of Life SciencesUniversity of GlasgowGlasgowUK
- Institute of Infection, Immunity & InflammationCollege of Medical, Veterinary & Life SciencesUniversity of GlasgowGlasgowUK
| | - Rhys W. Grinter
- Institute of Infection, Immunity & InflammationCollege of Medical, Veterinary & Life SciencesUniversity of GlasgowGlasgowUK
- Present address:
School of Biological SciencesCentre for Geometric BiologyMonash UniversityClaytonVictoria3800Australia
| | - Annapaula Correia
- Wellcome Trust Sanger InstituteWellcome Trust Genome CampusHinxtonUK
- Present address:
Department of ZoologyUniversity of OxfordSouth Parks RoadOxfordOX1 3PSUK
| | - Julian Parkhill
- Wellcome Trust Sanger InstituteWellcome Trust Genome CampusHinxtonUK
- Present address:
Department of Veterinary MedicineUniversity of CambridgeMadingley RoadCambridgeCB3 0ESUK
| | - Daniel C. Walker
- Institute of Infection, Immunity & InflammationCollege of Medical, Veterinary & Life SciencesUniversity of GlasgowGlasgowUK
| | - Joel J. Milner
- Plant Science GroupInstitute of Molecular, Cell and Systems Biology & School of Life SciencesUniversity of GlasgowGlasgowUK
| |
Collapse
|
15
|
Chen Y, Bendix C, Lewis JD. Comparative Genomics Screen Identifies Microbe-Associated Molecular Patterns from ' Candidatus Liberibacter' spp. That Elicit Immune Responses in Plants. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2020; 33:539-552. [PMID: 31790346 DOI: 10.1094/mpmi-11-19-0309-r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Citrus huanglongbing (HLB), caused by phloem-limited 'Candidatus Liberibacter' bacteria, is a destructive disease threatening the worldwide citrus industry. The mechanisms of pathogenesis are poorly understood and no efficient strategy is available to control HLB. Here, we used a comparative genomics screen to identify candidate microbe-associated molecular patterns (MAMPs) from 'Ca. Liberibacter' spp. We identified the core genome from multiple 'Ca. Liberibacter' pathogens, and searched for core genes with signatures of positive selection. We hypothesized that genes encoding putative MAMPs would evolve to reduce recognition by the plant immune system, while retaining their essential functions. To efficiently screen candidate MAMP peptides, we established a high-throughput microtiter plate-based screening assay, particularly for citrus, that measured reactive oxygen species (ROS) production, which is a common immune response in plants. We found that two peptides could elicit ROS production in Arabidopsis and Nicotiana benthamiana. One of these peptides elicited ROS production and defense gene expression in HLB-tolerant citrus genotypes, and induced MAMP-triggered immunity against the bacterial pathogen Pseudomonas syringae. Our findings identify MAMPs that boost immunity in citrus and could help prevent or reduce HLB infection.
Collapse
Affiliation(s)
- Yuan Chen
- Plant Gene Expression Center, United States Department of Agriculture-Agricultural Research Service and Department of Plant and Microbial Biology, University of California-Berkeley, 800 Buchanan Street, Albany, CA 94710, U.S.A
| | - Claire Bendix
- Plant Gene Expression Center, United States Department of Agriculture-Agricultural Research Service and Department of Plant and Microbial Biology, University of California-Berkeley, 800 Buchanan Street, Albany, CA 94710, U.S.A
| | - Jennifer D Lewis
- Plant Gene Expression Center, United States Department of Agriculture-Agricultural Research Service and Department of Plant and Microbial Biology, University of California-Berkeley, 800 Buchanan Street, Albany, CA 94710, U.S.A
| |
Collapse
|
16
|
Sun L, Ke F, Nie Z, Wang P, Xu J. Citrus Genetic Engineering for Disease Resistance: Past, Present and Future. Int J Mol Sci 2019; 20:E5256. [PMID: 31652763 PMCID: PMC6862092 DOI: 10.3390/ijms20215256] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/20/2019] [Accepted: 10/21/2019] [Indexed: 11/16/2022] Open
Abstract
Worldwide, citrus is one of the most important fruit crops and is grown in more than 130 countries, predominantly in tropical and subtropical areas. The healthy progress of the citrus industry has been seriously affected by biotic and abiotic stresses. Several diseases, such as canker and huanglongbing, etc., rigorously affect citrus plant growth, fruit quality, and yield. Genetic engineering technologies, such as genetic transformation and genome editing, represent successful and attractive approaches for developing disease-resistant crops. These genetic engineering technologies have been widely used to develop citrus disease-resistant varieties against canker, huanglongbing, and many other fungal and viral diseases. Recently, clustered regularly interspaced short palindromic repeats (CRISPR)-based systems have made genome editing an indispensable genetic manipulation tool that has been applied to many crops, including citrus. The improved CRISPR systems, such as CRISPR/CRISPR-associated protein (Cas)9 and CRISPR/Cpf1 systems, can provide a promising new corridor for generating citrus varieties that are resistant to different pathogens. The advances in biotechnological tools and the complete genome sequence of several citrus species will undoubtedly improve the breeding for citrus disease resistance with a much greater degree of precision. Here, we attempt to summarize the recent successful progress that has been achieved in the effective application of genetic engineering and genome editing technologies to obtain citrus disease-resistant (bacterial, fungal, and virus) crops. Furthermore, we also discuss the opportunities and challenges of genetic engineering and genome editing technologies for citrus disease resistance.
Collapse
Affiliation(s)
- Lifang Sun
- Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318026, China.
- National Center for Citrus Variety Improvement, Zhejiang Branch, Taizhou 318026, China.
| | - Fuzhi Ke
- Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318026, China.
- National Center for Citrus Variety Improvement, Zhejiang Branch, Taizhou 318026, China.
| | - Zhenpeng Nie
- Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318026, China.
- National Center for Citrus Variety Improvement, Zhejiang Branch, Taizhou 318026, China.
| | - Ping Wang
- Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318026, China.
- National Center for Citrus Variety Improvement, Zhejiang Branch, Taizhou 318026, China.
| | - Jianguo Xu
- Institute of Citrus Research, Zhejiang Academy of Agricultural Sciences, Taizhou 318026, China.
- National Center for Citrus Variety Improvement, Zhejiang Branch, Taizhou 318026, China.
| |
Collapse
|
17
|
Sathoff AE, Samac DA. Antibacterial Activity of Plant Defensins. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:507-514. [PMID: 30501455 DOI: 10.1094/mpmi-08-18-0229-cr] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plant defensins are antimicrobial host defense peptides expressed in all higher plants. Performing a significant role in plant innate immunity, plant defensins display potent activity against a wide range of pathogens. Vertebrate and invertebrate defensins have well-characterized antibacterial activity, but plant defensins are commonly considered to display antimicrobial activity against only fungi. In this review, we highlight the often-overlooked antibacterial activity of plant defensins. Also, we illustrate methods to evaluate defensins for antibacterial activity and describe the current advances in uncovering their antibacterial modes of action.
Collapse
Affiliation(s)
- Andrew E Sathoff
- 1 Department of Plant Pathology, 1991 Upper Buford Circle, University of Minnesota, St. Paul, MN, 55108, U.S.A.; and
| | - Deborah A Samac
- 1 Department of Plant Pathology, 1991 Upper Buford Circle, University of Minnesota, St. Paul, MN, 55108, U.S.A.; and
- 2 USDA-ARS, Plant Science Research Unit, 1991 Upper Buford Circle, St. Paul, MN 55108, U.S.A
| |
Collapse
|
18
|
Sinha R, Shukla P. Antimicrobial Peptides: Recent Insights on Biotechnological Interventions and Future Perspectives. Protein Pept Lett 2019; 26:79-87. [PMID: 30370841 PMCID: PMC6416458 DOI: 10.2174/0929866525666181026160852] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 12/15/2022]
Abstract
With the unprecedented rise of drug-resistant pathogens, particularly antibiotic-resistant bacteria, and no new antibiotics in the pipeline over the last three decades, the issue of antimicrobial resistance has emerged as a critical public health threat. Antimicrobial Peptides (AMP) have garnered interest as a viable solution to this grave issue and are being explored for their potential antimicrobial applications. Given their low bioavailability in nature, tailoring new AMPs or strategizing approaches for increasing the yield of AMPs, therefore, becomes pertinent. The present review focuses on biotechnological interventions directed towards enhanced AMP synthesis and revisits existing genetic engineering and synthetic biology strategies for production of AMPs. This review further underscores the importance and potential applications of advanced gene editing technologies for the synthesis of novel AMPs in future.
Collapse
Affiliation(s)
| | - Pratyoosh Shukla
- Address correspondence to this author at the Enzyme Technology and Protein Bioinformatics Laboratory, Department of Microbiology,
Maharshi Dayanand University, Rohtak-124001, Haryana, India; E-mail:
| |
Collapse
|
19
|
Inui Kishi RN, Stach-Machado D, Singulani JDL, dos Santos CT, Fusco-Almeida AM, Cilli EM, Freitas-Astúa J, Picchi SC, Machado MA. Evaluation of cytotoxicity features of antimicrobial peptides with potential to control bacterial diseases of citrus. PLoS One 2018; 13:e0203451. [PMID: 30192822 PMCID: PMC6128562 DOI: 10.1371/journal.pone.0203451] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 08/21/2018] [Indexed: 01/31/2023] Open
Abstract
Antimicrobial peptides (AMPs) can be found in various organisms, and could be considered an alternative for pesticides used to control plant pathogens, including those affecting citrus. Brazil is the largest producer and exporter of frozen concentrated orange juice in the world. However, the citrus industry has been affected by several diseases such as citrus canker and huanglongbing (HLB), caused by the bacteria Xanthomonas citri subsp. citri (X.citri) and Candidatus Liberibacter asiaticus (CaLas), respectively. In order to control these pathogens, putative AMPs were prospected in databases containing citrus sequences. Furthermore, AMPs already reported in the literature were also used for in vitro and in vivo assays against X.citri. Since CaLas cannot be cultivated in vitro, surrogates as Sinorhizobium meliloti and Agrobacterium tumefaciens were used. This study reports the evaluation of six AMPs obtained from different sources, two of them from Citrus spp. (citrus-amp1 and citrus-amp2), three from amphibians (Hylin-a1, K0-W6-Hy-a1 and Ocellatin 4-analogue) and one from porcine (Tritrpticin). Peptides K0-W6-Hy-a1, Ocellatin 4-analogue, and citrus-amp1 showed bactericidal activity against X.citri and S. meliloti and bacteriostatic effect on A. tumefaciens. These results were confirmed for X.citri in planta. In addition cytotoxicity evaluations of these molecules were performed. The AMPs that showed the lowest hemolytic activities were Triptrpticin, citrus-amp1 and citrus-amp2. Citrus-amp1 and citrus-amp2 not presented toxicity in experiments using in vivo model, G. mellonella and U87 MG cells. To verify the interaction of these AMPs with bacteria and erythrocyte cell membranes, vesicles mimicking these cells were built. Citrus-amp1 and Tritrpticin exhibited higher affinity to bacterial membranes, while Ocellatin 4-analogue and Hylin-a1 showed higher affinity to erythrocyte membranes; exclude their use in citrus. This work demonstrates an essential alternative, trough AMPs obtained from Citrus spp., which can be feasibly used to control bacterial pathogens.
Collapse
Affiliation(s)
- Rosangela Naomi Inui Kishi
- Centro de Citricultura Sylvio Moreira, Instituto Agronômico, Cordeirópolis, São Paulo, Brazil
- Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- * E-mail:
| | - Dagmar Stach-Machado
- Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Junya de Lacorte Singulani
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | - Claudia Tavares dos Santos
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | - Ana Marisa Fusco-Almeida
- Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | - Eduardo Maffud Cilli
- Instituto de Química de Araraquara, Departamento de Bioquímica e tecnologia química, Universidade Estadual Paulista Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | | | - Simone Cristina Picchi
- Centro de Citricultura Sylvio Moreira, Instituto Agronômico, Cordeirópolis, São Paulo, Brazil
| | - Marcos Antonio Machado
- Centro de Citricultura Sylvio Moreira, Instituto Agronômico, Cordeirópolis, São Paulo, Brazil
| |
Collapse
|