1
|
Li Y, Zhang X, He K, Song X, Yu J, Guo Z, Xu M. Isolation and Identification of Bacillus subtilis LY-1 and Its Antifungal and Growth-Promoting Effects. PLANTS (BASEL, SWITZERLAND) 2023; 12:4158. [PMID: 38140485 PMCID: PMC10747398 DOI: 10.3390/plants12244158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Peanut root rot, caused by Fusarium spp., is a devastating fungal disease. As part of a program to obtain a biocontrol agent to control peanut root rot in the field, a bacterial strain LY-1 capable of inhibiting the growth of the fungus in vitro was isolated from rhizosphere soil samples collected from wild mint by agar disk dilution and dual-culture assay. Strain LY-1 was identified as Bacillus subtilis based on morphological characteristics, 16S rDNA, and gyrA sequence analyses. The bacterial suspension and cell-free culture filtrate of LY-1 could significantly inhibit the growth of Fusarium oxysporum, Fusarium proliferatum and Fusarium solani, but volatile organic compounds from the cultures had only a weak effect on mycelial growth. The percentage inhibition of 20% concentration of the cell-free culture filtrate of LY-1 on conidium production of each of the three Fusarium species was greater than 72.38%, and the percentage inhibition by the culture filtration on the germination of conidia of the three species was at least 62.37%. The production of extracellular enzyme activity by LY-1 was studied in functional assays, showing protease, cellulase, amylase, chitinase, and β-1,3-glucanase activity, while LY-1 contained a gene encoding iturin, an antifungal lipopeptide. In addition, under pot culture in a greenhouse, culture filtrate of LY-1 significantly promoted the growth of peanut, increasing the fresh and dry mass of the plant by 30.77% and 27.27%, respectively, in comparison with the no-filtrate control. The culture filtrate of LY-1 increased the resistance of peanut plants to F. oxysporum, with the biocontrol efficiency reaching 44.71%. In conclusion, B. subtilis LY-1, a plant-growth-promoting rhizobacterium, was able to protect peanuts from Fusarium spp. infection.
Collapse
Affiliation(s)
- Ying Li
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Xia Zhang
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Kang He
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Xinying Song
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Jing Yu
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Zhiqing Guo
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| | - Manlin Xu
- Shandong Peanut Research Institute, Qingdao 266100, China; (Y.L.); (X.Z.); (K.H.); (X.S.); (J.Y.); (Z.G.)
- National Engineering Research Center for Peanut, Qingdao 266100, China
| |
Collapse
|
2
|
Ku Y, Yang N, Pu P, Mei X, Cao L, Yang X, Cao C. Biocontrol Mechanism of Bacillus subtilis C3 Against Bulb Rot Disease in Fritillaria taipaiensis P.Y.Li. Front Microbiol 2021; 12:756329. [PMID: 34659191 PMCID: PMC8515143 DOI: 10.3389/fmicb.2021.756329] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Bulb rot disease has become one of the main diseases that seriously affects the yield and quality of Fritillaria taipaiensis P.Y.Li (F. taipaiensis). In this study, F. taipaiensis was used as the research object to explore the effect and mechanism of Bacillus subtilis C3 in preventing and curing bulb rot. Through isolation and verification of the pathogenic fungi, we determined for the first time that the pathogenic fungus that causes bulb rot in F. taipaiensis is Fusarium oxysporum. The results of the study showed that B. subtilis C3 inhibits the growth of pathogenic fungi, and the inhibition rate is as high as 60%. In the inhibition mechanism, strain C3 inhibits the conidiogenesis of pathogenic fungi and destroys the cell structure of its hyphae, causing protoplast exudation, chromatin concentration, DNA fragmentation, and ultimately cell death. Among the secondary metabolites of C3, antimicrobial proteins and main active components (paeonol, ethyl palmitate, and oxalic acid) inhibited the growth of F. oxysporum. The molecular weight of the antibacterial protein with the highest inhibition rate was approximately 50 kD. The results of a field experiment on the Taibai Mountain F. taipaiensis planting base showed that after the application of strain C3, the incidence of bulb rot in Fritillaria was reduced by 18.44%, and the ratio of bacteria to fungi in the soil increased to 8.21, which verified the control effect of C3 on Fritillaria bulb rot disease. This study provides a theoretical basis for the use of B. subtilis C3 to prevent and control bulb rot in Fritillaria.
Collapse
Affiliation(s)
- Yongli Ku
- College of Forestry, Northwest A&F University, Yangling, China
| | - Nan Yang
- College of Life Sciences, Northwest A&F University, Yangling, China.,College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
| | - Peng Pu
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Xueli Mei
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Le Cao
- College of Environment and Life Sciences, Weinan Normal University, Weinan, China
| | - Xiangna Yang
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Cuiling Cao
- College of Life Sciences, Northwest A&F University, Yangling, China
| |
Collapse
|
3
|
Minamihata K, Tanaka Y, Santoso P, Goto M, Kozome D, Taira T, Kamiya N. Orthogonal Enzymatic Conjugation Reactions Create Chitin Binding Domain Grafted Chitinase Polymers with Enhanced Antifungal Activity. Bioconjug Chem 2021; 32:1688-1698. [PMID: 34251809 DOI: 10.1021/acs.bioconjchem.1c00235] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enzymatic reaction offers site-specific conjugation of protein units to form protein conjugates or protein polymers with intrinsic functions. Herein, we report horseradish peroxidase (HRP)- and microbial transglutaminase (MTG)-catalyzed orthogonal conjugation reactions to create antifungal protein polymers composed of Pteris ryukyuensis chitinase-A (ChiA) and its two domains, catalytic domain, CatD, and chitin-binding domain, LysM2. We engineered the ChiA and CatD by introducing a peptide tag containing tyrosine (Y-tag) at N-termini and a peptide tag containing lysine and tyrosine (KY-tag) at C-termini to construct Y-ChiA-KY and Y-CatD-KY. Also, LysM2 with Y-tag and KY-tag (Y-LysM2-KY) or with a glutamine-containing peptide tag (Q-tag) (LysM2-Q) were constructed. The proteins with Y-tag and KY-tag were efficiently polymerized by HRP reaction through the formation of dityrosine bonds at the tyrosine residues in the peptide tags. The Y-CatD-KY polymer was further treated by MTG to orthogonally graft LysM2-Q to the KY-tag via isopeptide formation between the side chains of the glutamine and lysine residues in the peptide tags to form LysM2-grafted CatD polymer. The LysM2-grafted CatD polymer exhibited significantly higher antifungal activity than the homopolymer of Y-ChiA-KY and the random copolymer of Y-CatD-KY and Y-LysM2-KY, demonstrating that the structural differences of artificial chitinase polymers have a significant impact on the antifungal activity. This strategy of polymerization and grafting reaction of protein can contribute to the further research and development of functional protein polymers for specific applications in various fields in biotechnology.
Collapse
Affiliation(s)
- Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yusuke Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Pugoh Santoso
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Dan Kozome
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - Toki Taira
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
4
|
Li T, Li L, Du F, Sun L, Shi J, Long M, Chen Z. Activity and Mechanism of Action of Antifungal Peptides from Microorganisms: A Review. Molecules 2021; 26:molecules26113438. [PMID: 34198909 PMCID: PMC8201221 DOI: 10.3390/molecules26113438] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 12/20/2022] Open
Abstract
Harmful fungi in nature not only cause diseases in plants, but also fungal infection and poisoning when people and animals eat food derived from crops contaminated with them. Unfortunately, such fungi are becoming increasingly more resistant to traditional synthetic antifungal drugs, which can make prevention and control work increasingly more difficult to achieve. This means they are potentially very harmful to human health and lifestyle. Antifungal peptides are natural substances produced by organisms to defend themselves against harmful fungi. As a result, they have become an important research object to help deal with harmful fungi and overcome their drug resistance. Moreover, they are expected to be developed into new therapeutic drugs against drug-resistant fungi in clinical application. This review focuses on antifungal peptides that have been isolated from bacteria, fungi, and other microorganisms to date. Their antifungal activity and factors affecting it are outlined in terms of their antibacterial spectra and effects. The toxic effects of the antifungal peptides and their common solutions are mentioned. The mechanisms of action of the antifungal peptides are described according to their action pathways. The work provides a useful reference for further clinical research and the development of safe antifungal drugs that have high efficiencies and broad application spectra.
Collapse
Affiliation(s)
- Tianxi Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Lulu Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Fangyuan Du
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Lei Sun
- College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou 121001, China;
| | - Jichao Shi
- Liaoning Agricultural Development Service Center, Shenyang 110032, China;
| | - Miao Long
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
- Correspondence: (M.L.); (Z.C.)
| | - Zeliang Chen
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
- Correspondence: (M.L.); (Z.C.)
| |
Collapse
|
5
|
Kumbar B, Mahmood R, Nagesha S, Nagaraja M, Prashant D, Kerima OZ, Karosiya A, Chavan M. Field application of Bacillus subtilis isolates for controlling late blight disease of potato caused by Phytophthora infestans. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
6
|
Ren J, He W, Li C, He S, Niu D. Purification and identification of a novel antifungal protein from Bacillus subtilis XB-1. World J Microbiol Biotechnol 2019; 35:150. [PMID: 31549229 DOI: 10.1007/s11274-019-2726-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/13/2019] [Indexed: 12/20/2022]
Abstract
This study aimed to characterize a powerful antifungal component from bacteria. Bacillus subtilis strain XB-1, which showed maximal inhibition of Monilinia fructicola, was isolated and identified, and an antifungal protein was obtained from it. Ammonium sulfate precipitation, ion exchange chromatography, and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) were used to purify and identify the proteins secreted by B. subtilis XB-1. Analyses revealed that purified fraction V had the strongest antifungal effect, with the largest pathogen inhibition zone diameter of 4.15 cm after 4 days (P < 0.05). This fraction showed a single band with a molecular weight of approximately 43 kDa in SDS-PAGE. Results from SDS-PAGE and liquid chromatography electrospray ionization tandem mass spectrometry analyses demonstrated that fraction V was likely a member of the chitosanase family. These results suggest that B. subtilis XB-1 and its antifungal protein may be useful in potential biocontrol applications.
Collapse
Affiliation(s)
- Jianjun Ren
- Institute of Urban and Rural Mining, Changzhou University, Changzhou, 213164, China.,College of Biological Science and Engineering, Beijing University of Agriculture, Beijing, 102206, China
| | - Wenhao He
- College of Biological Science and Engineering, Beijing University of Agriculture, Beijing, 102206, China
| | - Chunyu Li
- Institute of Urban and Rural Mining, Changzhou University, Changzhou, 213164, China
| | - Song He
- Institute of Urban and Rural Mining, Changzhou University, Changzhou, 213164, China.,School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Dongze Niu
- Institute of Urban and Rural Mining, Changzhou University, Changzhou, 213164, China.
| |
Collapse
|
7
|
Bubici G, Kaushal M, Prigigallo MI, Gómez-Lama Cabanás C, Mercado-Blanco J. Biological Control Agents Against Fusarium Wilt of Banana. Front Microbiol 2019; 10:616. [PMID: 31024469 PMCID: PMC6459961 DOI: 10.3389/fmicb.2019.00616] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/11/2019] [Indexed: 11/13/2022] Open
Abstract
In the last century, the banana crop and industry experienced dramatic losses due to an epidemic of Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f.sp. cubense (Foc) race 1. An even more dramatic menace is now feared due to the spread of Foc tropical race 4. Plant genetic resistance is generally considered as the most plausible strategy for controlling effectively such a devastating disease, as occurred for the first round of FWB epidemic. Nevertheless, with at least 182 articles published since 1970, biological control represents a large body of knowledge on FWB. Remarkably, many studies deal with biological control agents (BCAs) that reached the field-testing stage and even refer to high effectiveness. Some selected BCAs have been repeatedly assayed in independent trials, suggesting their promising value. Overall under field conditions, FWB has been controlled up to 79% by using Pseudomonas spp. strains, and up to 70% by several endophytes and Trichoderma spp. strains. Lower biocontrol efficacy (42-55%) has been obtained with arbuscular mycorrhizal fungi, Bacillus spp., and non-pathogenic Fusarium strains. Studies on Streptomyces spp. have been mostly limited to in vitro conditions so far, with very few pot-experiments, and none conducted in the field. The BCAs have been applied with diverse procedures (e.g., spore suspension, organic amendments, bioformulations, etc.) and at different stages of plant development (i.e., in vitro, nursery, at transplanting, post-transplanting), but there has been no evidence for a protocol better than another. Nonetheless, new bioformulation technologies (e.g., nanotechnology, formulation of microbial consortia and/or their metabolites, etc.) and tailor-made consortia of microbial strains should be encouraged. In conclusion, the literature offers many examples of promising BCAs, suggesting that biocontrol can greatly contribute to limit the damage caused by FWB. More efforts should be done to further validate the currently available outcomes, to deepen the knowledge on the most valuable BCAs, and to improve their efficacy by setting up effective formulations, application protocols, and integrated strategies.
Collapse
Affiliation(s)
- Giovanni Bubici
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Protezione Sostenibile delle Piante (IPSP), Bari, Italy
| | - Manoj Kaushal
- International Institute of Tropical Agriculture (IITA), Dar es Salaam, Tanzania
| | - Maria Isabella Prigigallo
- Consiglio Nazionale delle Ricerche (CNR), Istituto per la Protezione Sostenibile delle Piante (IPSP), Bari, Italy
| | | | - Jesús Mercado-Blanco
- Department of Crop Protection, Institute for Sustainable Agriculture (CSIC), Córdoba, Spain
| |
Collapse
|
8
|
Li Q, Liao S, Zhi H, Xing D, Xiao Y, Yang Q. Characterization and sequence analysis of potential biofertilizer and biocontrol agent Bacillus subtilis strain SEM-9 from silkworm excrement. Can J Microbiol 2019; 65:45-58. [DOI: 10.1139/cjm-2018-0350] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fusarium wilt is a devastating soil-borne disease caused mainly by highly host-specific formae speciales of Fusarium oxysporum. Antagonistic microorganisms play a very important role in Fusarium wilt control, and the isolation of potential biocontrol strains is becoming more and more important. We isolated a bacterial strain (SEM-9) from the high-temperature stage of silkworm excrement composting, which had a marked ability to solubilize phosphorus, promote the growth and increase the yield of the small Chinese cabbage, and which also exhibited considerable antagonistic effect towards Fusarium sambucinum and other fungi. The result of physiological and biochemical analyses, as well as genome sequencing, showed that SEM-9 was a strain of Bacillus subtilis. Through genome annotation and analysis, it was found that SEM-9 contained genes related to the regulation of biofilm formation, which may play an important role in colonization, and gene clusters encoding the biosynthesis of antimicrobials, such as surfactin, bacilysin, fengycin, and subtilosin-A. The production of such antifungal compounds may constitute the basis of the mode-of-action of SEM-9 against Fusarium spp. These data suggested that the SEM-9 strain has potential as both a biofertilizer and a biocontrol agent, with the potential to manage Fusarium wilt disease in crops.
Collapse
Affiliation(s)
- Qingrong Li
- The Sericulture and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, P.R. China
- Key Laboratory of Urban Agriculture in South China, Ministry of Agriculture, Guangzhou 510610, P.R. China
| | - Sentai Liao
- The Sericulture and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, P.R. China
| | - Huyu Zhi
- Guangdong Geolong Biotechnology Co. Ltd., ZhuHai 519000, P.R. China
| | - Dongxu Xing
- The Sericulture and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, P.R. China
- Key Laboratory of Urban Agriculture in South China, Ministry of Agriculture, Guangzhou 510610, P.R. China
| | - Yang Xiao
- The Sericulture and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, P.R. China
- Key Laboratory of Urban Agriculture in South China, Ministry of Agriculture, Guangzhou 510610, P.R. China
| | - Qiong Yang
- The Sericulture and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, P.R. China
- Key Laboratory of Urban Agriculture in South China, Ministry of Agriculture, Guangzhou 510610, P.R. China
| |
Collapse
|
9
|
Antifungal Screening of Bioprotective Isolates against Botrytis cinerea, Fusarium pallidoroseum and Fusarium moniliforme. FERMENTATION-BASEL 2017. [DOI: 10.3390/fermentation3040053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
10
|
Leyva Salas M, Mounier J, Valence F, Coton M, Thierry A, Coton E. Antifungal Microbial Agents for Food Biopreservation-A Review. Microorganisms 2017; 5:microorganisms5030037. [PMID: 28698479 PMCID: PMC5620628 DOI: 10.3390/microorganisms5030037] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/21/2017] [Accepted: 06/24/2017] [Indexed: 11/16/2022] Open
Abstract
Food spoilage is a major issue for the food industry, leading to food waste, substantial economic losses for manufacturers and consumers, and a negative impact on brand names. Among causes, fungal contamination can be encountered at various stages of the food chain (e.g., post-harvest, during processing or storage). Fungal development leads to food sensory defects varying from visual deterioration to noticeable odor, flavor, or texture changes but can also have negative health impacts via mycotoxin production by some molds. In order to avoid microbial spoilage and thus extend product shelf life, different treatments—including fungicides and chemical preservatives—are used. In parallel, public authorities encourage the food industry to limit the use of these chemical compounds and develop natural methods for food preservation. This is accompanied by a strong societal demand for ‘clean label’ food products, as consumers are looking for more natural, less severely processed and safer products. In this context, microbial agents corresponding to bioprotective cultures, fermentates, culture-free supernatant or purified molecules, exhibiting antifungal activities represent a growing interest as an alternative to chemical preservation. This review presents the main fungal spoilers encountered in food products, the antifungal microorganisms tested for food bioprotection, and their mechanisms of action. A focus is made in particular on the recent in situ studies and the constraints associated with the use of antifungal microbial agents for food biopreservation.
Collapse
Affiliation(s)
- Marcia Leyva Salas
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne (LUBEM EA3882), Université de Brest, Technopole Brest-Iroise, 29280 Plouzané, France.
- UMR1253 Science et Technologie du Lait et de l'Œuf, INRA, Agrocampus Ouest, 65 rue de Saint Brieuc, 35000 Rennes, France.
| | - Jérôme Mounier
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne (LUBEM EA3882), Université de Brest, Technopole Brest-Iroise, 29280 Plouzané, France.
| | - Florence Valence
- UMR1253 Science et Technologie du Lait et de l'Œuf, INRA, Agrocampus Ouest, 65 rue de Saint Brieuc, 35000 Rennes, France.
| | - Monika Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne (LUBEM EA3882), Université de Brest, Technopole Brest-Iroise, 29280 Plouzané, France.
| | - Anne Thierry
- UMR1253 Science et Technologie du Lait et de l'Œuf, INRA, Agrocampus Ouest, 65 rue de Saint Brieuc, 35000 Rennes, France.
| | - Emmanuel Coton
- Laboratoire Universitaire de Biodiversité et Ecologie Microbienne (LUBEM EA3882), Université de Brest, Technopole Brest-Iroise, 29280 Plouzané, France.
| |
Collapse
|
11
|
Balouiri M, Bouhdid S, Sadiki M, Ouedrhiri W, Barkai H, El Farricha O, Ibnsouda SK, Harki EH. Effect of preconditioning cobalt and nickel based dental alloys with Bacillus sp. extract on their surface physicochemical properties and theoretical prediction of Candida albicans adhesion. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:111-117. [PMID: 27987667 DOI: 10.1016/j.msec.2016.09.083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/14/2016] [Accepted: 09/29/2016] [Indexed: 10/20/2022]
Abstract
Biofilm formation on dental biomaterials is implicated in various oral health problems. Thus the challenge is to prevent the formation of this consortium of microorganisms using a safe approach such as antimicrobial and anti-adhesive natural products. Indeed, in the present study, the effects of an antifungal extract of Bacillus sp., isolated from plant rhizosphere, on the surface physicochemical properties of cobalt and nickel based dental alloys were studied using the contact angle measurements. Furthermore, in order to predict the adhesion of Candida albicans to the treated and untreated dental alloys, the total free energy of adhesion was calculated based on the extended Derjaguin-Landau-Verwey-Overbeek approach. Results showed hydrophobic and weak electron-donor and electron-acceptor characteristics of both untreated dental alloys. After treatment with the antifungal extract, the surface free energy of both dental alloys was influenced significantly, mostly for cobalt based alloy. In fact, treated cobalt based alloy became hydrophilic and predominantly electron donating. Those effects were time-dependent. Consequently, the total free energy of adhesion of C. albicans to this alloy became unfavorable after treatment with the investigated microbial extract. A linear relationship between the electron-donor property and the total free energy of adhesion has been found for both dental alloys. Also, a linear relationship has been found between this latter and the hydrophobicity for the cobalt based alloy. However, the exposure of nickel based alloy to the antifungal extract failed to produce the same effect.
Collapse
Affiliation(s)
- Mounyr Balouiri
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco.
| | - Samira Bouhdid
- Faculté des Sciences de Tétouan, Université Abdelmalek Essaadi, Avenue de Sebta, Mhannech II, 93002 Tétouan, Morocco
| | - Moulay Sadiki
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco
| | - Wessal Ouedrhiri
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco
| | - Hassan Barkai
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco
| | - Omar El Farricha
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco
| | - Saad Koraichi Ibnsouda
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco; Cité de l'innovation, Université Sidi Mohamed Ben Abdellah, BP 2626, 30007 Fez, Morocco
| | - El Houssaine Harki
- Faculté des Sciences et Techniques, Université Sidi Mohamed Ben Abdellah, BP 2202, 30007 Fez, Morocco
| |
Collapse
|
12
|
Mardanova AM, Fanisovna Hadieva G, Tafkilevich Lutfullin M, Valer’evna Khilyas I, Farvazovna Minnullina L, Gadelevna Gilyazeva A, Mikhailovna Bogomolnaya L, Rashidovna Sharipova M. <i>Bacillus subtilis Strains</i> with Antifungal Activity against the Phytopathogenic Fungi. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/as.2017.81001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
13
|
Larrea-Izurieta I, Falconí Borja C, Arcos-Andrade A. Aislamiento y caracterización de cepas de Bacillus spp. con actividad contra Tetranychus urticae Koch en cultivos comerciales de rosas. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2015. [DOI: 10.15446/rev.colomb.biote.v17n2.54291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
<p><strong>Título en ingles: Aislamiento y caracterización de cepas de <em>Bacillus</em> spp. con actividad contra <em>Tetranychus urticae </em>Koch en cultivos comerciales de rosas </strong></p><p>Una de las especies de ácaros que producen considerables pérdidas cualitativas y cuantitativas en el cultivo de rosas bajo invernadero en Ecuador es <em>Tetranychus urticae</em>, donde el control con agroquímicos convencionales no es efectivo; por lo cual se busca identificar cepas de <em>Bacillus </em>spp. aisladas a partir de <em>T. urticae</em> y determinar sus escenarios anatómicos patogénicos para un futuro control con bacterias. La fase de campo se realizó en la florícola Naranjo Roses S.A. en Latacunga en un cultivo de rosas bajo condiciones orgánicas, en donde se recolectaron hojas de cada tercio de seis plantas con presencia de <em>T. urticae </em>Koch. Las muestras fueron trasladadas para ser procesadas en Plantsphere Laboratories (PSL) en Quito. Se identificaron y cuantificaron los diferentes estadios de la plaga y se aislaron algunos individuos para determinar la presencia de cepas patogénicas de <em>Bacillus </em>spp., las cuales fueron aisladas, purificadas e identificadas. Los tratamientos de verificación patogénica fueron las cepas, agua destilada (testigo) y <em>Bacillus thuringiensis </em>biovar <em>acari</em> (testigo positivo). Los eventos patogénicos se evaluaron en hembras adultas de <em>T. urticae </em>mediante citohistoquímica, por medio de la cual se reportó ruptura de paredes externas, precipitación de contenido celular y malformaciones cuticulares. Se determinó que el mayor número de individuos plaga se localizan en el tercio bajo (59,4%) con mayor presencia de huevos (63,3%). Mediante análisis de componentes principales (ACP) de los tratamientos, se determinó las cepas más eficientes como Efectores Biocatalíticos (EBc<sup>©</sup>)siendo estas la PSL 104, 113, 114 y <em>Bacillus thuringiensis </em>biovar <em>acari</em>.</p>
Collapse
|