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Susceptibility of Phytopathogenic Bacteria to Wheat Purothionins In Vitro
Open accessAbstract
Purothionins are basic polypeptides with antimicrobial properties that are present in the endosperm of wheat and other cereal species. Susceptibility to wheat purothionins among phytopathogenic bacteria of the genera Pseudomonas, Xanthomonas, Agrobacterium, Erwinia, and Corynebacterium has been investigated. Sensitive strains have been found in all of these genera except Agrobacterium (the only strain of A. tumefaciens available proved to be resistant). Minimal inhibitory concentrations (MIC) with partially purified crude purothionins ranged from 1 mug/ml for C. sepedonicum (C.5) to 540 mug/ml for E. amylovora (E.3). Minimal bactericidal concentrations (MBC) were not higher than twice the MIC value, except for C. poinsettiae (C.4) (MBC/MIC = 8). Purothionins alpha and beta, obtained by carboxymethyl-cellulose column chromatography, were tested against P. solanacearum (P.2) and X. phaseoli (X.2); alpha purothionin was more active than beta against X.2, and beta more active than alpha against P.2. This suggests a relationship between polypeptide sequence and specificity of action.
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Citations
Cited by
Plant Products as Antimicrobial Agents
Cowan, M. M. (1999) · Clinical Microbiology Reviews · doi:10.1128/cmr.12.4.564 · Cited by 9,043
Pathogenesis‐related proteins of plants
Linthorst, H. J. M., & Van Loon, L. C. (1991) · Critical Reviews in Plant Sciences · doi:10.1080/07352689109382309 · Cited by 684
Antimicrobial Peptides from Plants
Broekaert, W. F., Cammue, B. P. A., De Bolle, M. F. C., Thevissen, K., De Samblanx, G. W., Osborn, R. W., & Nielson, K. (1997) · Critical Reviews in Plant Sciences · doi:10.1080/07352689709701952 · Cited by 678
Ageitos, J. M., Sánchez-Pérez, A., Calo-Mata, P., & Villa, T. G. (2017) · Biochemical Pharmacology · doi:10.1016/j.bcp.2016.09.018 · Cited by 614
Human Antimicrobial Peptides: Defensins, Cathelicidins and Histatins
De Smet, K., & Contreras, R. (2005) · Biotechnology Letters · doi:10.1007/s10529-005-0936-5 · Cited by 560
Metadata
- Authors
- Caleya, R. F. D., Gonzalez-Pascual, B., García‐Olmedo, F., & Carbonero, P.
- Venue
- Applied Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1972-01-01
- Volume
- 23
- Issue
- 5
- Pages
- 998-1000
- ISSN
- 0003-6919 (ISSN-L)
- OpenAlex
- W1579832966
- Cited by
- 305
- References
- 0
- FWCI
- 1.97
- Type
- journal article
- Language
- en
- Open access
- diamond
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- Caleya, R. F. D., Gonzalez-Pascual, B., García‐Olmedo, F., & Carbonero, P. (1972). Susceptibility of Phytopathogenic Bacteria to Wheat Purothionins In Vitro. Applied Microbiology. https://doi.org/10.1128/aem.23.5.998-1000.1972
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