Characterization of Bacteriophages from Sewage Water and Their Lytic Activity Against Mycobacterium smegmatis ATCC 14468
Abstract
Bacteriophage-based inhibition of Mycobacterium tuberculosis offers a potential alternative for managing tuberculosis. In vitro testing generally utilizes Mycobacterium smegmatis as a surrogate model. This study aimed to isolate and characterize bacteriophages from wastewater capable of lysing M. smegmatis ATCC 14468, and to determine the optimal lytic activity from the combination of bacteriophage type and Multiplicity of Infection (MOI) doses. This research employed a 3x3 factorial randomized block design incorporating bacteriophage type and the MOI levels (0.01, 0.1, and 1) as independent variations. The dependent variable, lytic activity (PhageScore), was analyzed using a two-way ANOVA with 95% significance and Duncan's Multiple Range Test (DMRT) for post-hoc analysis. Three types of bacteriophages, namely Kc, Cm, and Mt, were successfully isolated from wastewater. These three bacteriophages shared similar characteristics: they were specific to M. smegmatis ATCC 14468, unable to infect host cells during the non-logarithmic (lag) phase and were only stable at pH 7. The stability of bacteriophage Mt could reach a temperature of 45°C, while bacteriophages Kc and Cm were stable at 37°C. The highest lytic activity was exhibited by bacteriophage Cm at a Multiplicity of Infection (MOI) of 1, yielding a PhageScore of 0.6920.
Keywords: Lytic Activity; Mycobacteriophage; Multiplicity of Infection; PhageScore; Phage Therapy; Tuberculosis; Wastewater.
Full Text:
PDFReferences
WORLD HEALTH ORGANIZATION [WHO]. Global tuberculosis report 2024. World Health Organization; 2025.
SPARKS I.L., DERBYSHIRE K.M., JACOBS JR W.R., et al. Mycobacterium smegmatis: the vanguard of mycobacterial research. J Bacteriol. 2023;205(1):e00337-22. https://doi.org/10.1128/jb.00337-22
LELOVIC N., MITACHI K., YANG J., et al. Application of Mycobacterium smegmatis as a surrogate to evaluate drug leads against Mycobacterium tuberculosis. J Antibiot. 2020;73(11):780-789. https://doi.org/10.1038/s41429-020-0320-7
KOSKELLA B., BROCKHURST M.A. Bacteria–phage coevolution as a driver of ecological and evolutionary processes in microbial communities. FEMS Microbiol Rev. 2014;38(5):916–31. https://doi.org/10.1111/1574-6976.12072
LITTLE J.S., DEDRICK R.M., FREEMAN K.G., et al. Bacteriophage treatment of disseminated cutaneous Mycobacterium chelonae infection. Nat Commun. 2022;13(1). https://doi.org/10.1038/s41467-022-29689-4
ALHARBI N.M., ZIADI M.M. Wastewater as a fertility source for novel bacteriophages against multi-drug resistant bacteria. Saudi J Biol Sci. 2021;28(8):4358–64. https://doi.org/10.1016/j.sjbs.2021.04.025
NAIR A., GHUGARE G.S., KHAIRNAR K. An appraisal of bacteriophage isolation techniques from environment. Microb Ecol. 2022;83(3):519–35. https://doi.org/10.1007/s00248-021-01782-z
BALLESTÉ E., BLANCH A.R., MUNIESA M., et al. Bacteriophages in sewage: Abundance, roles, and applications. FEMS Microbes. 2022;3:xtac009. https://doi.org/10.1093/femsmc/xtac009
GAO M., WANG C., QIANG X., et al. Isolation and characterization of a novel bacteriophage infecting carbapenem-resistant Klebsiella pneumoniae. Curr Microbiol. 2020;77(5):722–9. https://doi.org/10.1007/s00284-019-01849-8
PEREIRA R.M.M., OLIVEIRA H.V.C., ANDRADE S.L., et al. Isolation of a mycobacteriophage against Mycobacterium smegmatis. European Journal of Biology and Biotechnology. 2021;2(1):34–7. https://doi.org/10.24018/ejbio.2021.2.1.147
KONOPACKI M., GRYGORCEWICZ B., DOŁĘGOWSKA B., et al. PhageScore: A simple method for comparative evaluation of bacteriophages lytic activity. Biochem Eng J. 2020;161:107652. https://doi.org/10.1016/j.bej.2020.107652
WONG C.L., SIEO C.C., TAN W.S., et al. Evaluation of a lytic bacteriophage, Φ st1, for biocontrol of Salmonella enterica serovar Typhimurium in chickens. Int J Food Microbiol. 2014;172:92–101. https://doi.org/10.1016/j.ijfoodmicro.2013.11.034
VIAZIS S., AKHTAR M., FEIRTAG J., et al. Isolation and characterization of lytic bacteriophages against enterohaemorrhagic Escherichia coli. J Appl Microbiol. 2011;110(5):1323–31. https://doi.org/10.1111/j.1365-2672.2011.04989.x
SHAHIN K., BOUZARI M., WANG R. Isolation, characterization and genomic analysis of a novel lytic bacteriophage vB_SsoS-ISF002 infecting Shigella sonnei and Shigella flexneri. J Med Microbiol. 2018;67(3):376–86. https://doi.org/10.1099/jmm.0.000683
TOAQUIZA-VILCA B., QUITO-AVILA D., MALDONADO-ALVARADO P., et al. Physicochemical, genomic, and phenotypic characterization of Escherichia phage BME3. Microbiol Spectr. 2025;13(7): e01301-24. https://doi.org/10.1128/spectrum.01301-24
KALAPALA Y.C., SHARMA P.R., AGARWAL R. Antimycobacterial potential of mycobacteriophage under disease-mimicking conditions. Front Microbiol. 2020;11: 583661. https://doi.org/10.3389/fmicb.2020.583661
BROXMEYER L., SOSNOWSKA D., MILTNER E., et al. Killing of Mycobacterium avium and Mycobacterium tuberculosis by a mycobacteriophage delivered by a nonvirulent Mycobacterium: a model for phage therapy of intracellular bacterial pathogens. J Infect Dis. 2002;186(8):1155–1160. Available from: https://doi.org/10.1086/343812
PAYASLIAN F., GRADASCHI V., RONDÓN SALAZAR L., et al. Isolation and characterization of vB_MsmS_Celfi: a new Mycobacterium tuberculosis bacteriophage. PHAGE. 2021;2(1):43–49. https://doi.org/10.1089/phage.2020.0030
TRAN S.L., COOK G.M. The F1Fo-ATP synthase of Mycobacterium smegmatis is essential for growth. J Bacteriol. 2005;187(14):5023–5028. https://doi.org/10.1128/jb.187.14.5023-5028.2005
THAKALI O., WAN S., KABIR M.D.P., et al. A call to wastewater researchers to support phage therapy in the global fight against antibiotic resistance. ACS ES&T Water. 2024;4(4):1177–9. https://doi.org/10.1021/acsestwater.3c00844
FERNANDES S., LABARDE A., BAPTISTA C., et al. A non-invasive method for studying viral DNA delivery to bacteria reveals key requirements for phage SPP1 DNA entry in Bacillus subtilis cells. Virology. 2016;495:79–91. https://doi.org/10.1016/j.virol.2016.05.004
HATFULL G.F. Mycobacteriophages: From Petri dish to patient. PLoS Pathog. 2022;18(7):e1010602. https://doi.org/10.1371/journal.ppat.1010602
ABUSALAH M.A.H.A., ABUSALAH M.A.H.A., YEAN YEAN C., et al. Isolation and characterization of bacteriophage against clinical isolates of AmpC beta lactamase–producing Klebsiella pneumoniae from hospital wastewater. PLoS One. 2025;20(2):e0315079. https://doi.org/10.1371/journal.pone.0315079
SHENDE R.K., HIRPURKAR S.D., SANNAT C., et al. Isolation and characterization of bacteriophages with lytic activity against common bacterial pathogens. Vet World. 2017;10(8):973–978. https://doi.org/10.14202/vetworld.2017.973-978
TUPIN A., GUALTIERI M., ROQUET-BANÈRES F., et al. Resistance to rifampicin: At the crossroads between ecological, genomic and medical concerns. Int J Antimicrob Agents. 2010;35(6):519–23. https://doi.org/10.1016/j.ijantimicag.2009.12.017
KOCH A., MIZRAHI V., WARNER D.F. The impact of drug resistance on Mycobacterium tuberculosis physiology: what can we learn from rifampicin?. Emerg Microb Infect 2014;3(1):1-11. https://doi.org/10.1038/emi.2014.17
WANG I.N. Lysis timing and bacteriophage fitness. Genetics. 2006;172(1):17-26. https://doi.org/10.1534/genetics.105.045922
KASMAN L.M., PORTER L.D. Bacteriophages. In: StatPearls. StatPearls Publishing, 2022.
SWIFT B.M.C., GERRARD Z.E., HUXLEY J.N., et al. Factors affecting phage D29 infection: A tool to investigate different growth states of mycobacteria. PLoS One. 2014;9(9):e106690. https://doi.org/10.1371/journal.pone.0106690
ALLUÉ-GUARDIA A., SARANATHAN R., CHAN J., et al. Mycobacteriophages as potential therapeutic agents against drug-resistant tuberculosis. Int J Mol Sci. 2021;22(2):735. https://doi.org/10.3390/ijms22020735
JOŃCZYK E., KŁAK M., MIĘDZYBRODZKI R., et al. The influence of external factors on bacteriophages—review. Folia Microbiol (Praha). 2011;56(3):191–200. https://doi.org/10.1007/s12223-011-0039-8
KWIATEK M., PARASION S., MIZAK L., et al. Characterization of a bacteriophage, isolated from a cow with mastitis, that is lytic against Staphylococcus aureus strains. Arch Virol. 2012;157(2):225–34. https://doi.org/10.1007/s00705-011-1160-3
LOPEZ-DAVIS C., KEDY C., ALI A.K., et al. Characterization of mycobacteriophage Fulbright isolated from Oklahoma soil. Proc Okla Acad Sci. 2022;102:132–41.
KOMIJANI M., BOUZARI M., RAHIMI F. Detection and characterization of a novel lytic bacteriophage (vB-KpneM-Isf48) against Klebsiella pneumoniae isolates from infected wounds carrying antibiotic-resistance genes (TEM, SHV, and CTX-M). Iran Red Crescent Med J. 2017;19(2): e34475. https://doi.org/10.5812/ircmj.34475
KAZANTSEVA O.A., BUZIKOV R.M., PILIPCHUK T.A., et al. The bacteriophage Pf-10—A component of the biopesticide “Multiphage” used to control agricultural crop diseases caused by Pseudomonas syringae. Viruses. 2021;14(1):42. https://doi.org/10.3390/v14010042
Refbacks
- There are currently no refbacks.


