1
|
Sperotto VR, Denardi LB, Weiblen C, de Jesus FPK, Dorneles MR, Ianiski LB, Santurio JM. Short communication: Algicide activity of antimicrobial peptides compounds against Prototheca bovis. J Dairy Sci 2021; 104:3554-3558. [PMID: 33455795 DOI: 10.3168/jds.2020-18171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 10/16/2020] [Indexed: 11/19/2022]
Abstract
This study evaluated the in vitro activity of antimicrobial peptides pexiganan (MSI-78), h-Lf1-11, LL-37, cecropin B, magainin-2, and fengycin B against the veterinary mastitis agent Prototheca bovis. The results showed that pexiganan, h-Lf1-11, LL-37, and cecropin B were able to inhibit the growth and had effect on algicide P. bovis isolates (n = 32). The minimum inhibitory concentration ranged from 5 to 10 µg/mL for pexiganan, and algicide effect was detected from 5 to 20 µg/mL. The minimum inhibitory concentration ranged from 10 to 80 µg/mL for h-Lf1-11, 20 to 80 µg/mL for LL-37, and 40 to 160 µg/mL for cecropin B. These findings present a promising and novel alternative for P. bovis treatment and growth control.
Collapse
Affiliation(s)
- V R Sperotto
- Pharmacology Postgraduate Program, Federal University of Santa Maria, Rio Grande do Sul, Brazil, 97105-900; University of Cruz Alta, Cruz Alta, Rio Grande do Sul, Brazil, 98005-972.
| | - L B Denardi
- Pharmacology Postgraduate Program, Federal University of Santa Maria, Rio Grande do Sul, Brazil, 97105-900; Department of Microbiology and Parasitology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, 97105-900
| | - C Weiblen
- Department of Microbiology and Parasitology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, 97105-900
| | - F P K de Jesus
- Department of Microbiology and Parasitology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, 97105-900
| | - M R Dorneles
- University of Cruz Alta, Cruz Alta, Rio Grande do Sul, Brazil, 98005-972
| | - L B Ianiski
- Department of Microbiology and Parasitology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, 97105-900; Postgraduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Rio Grande do Sul, Brazil, 97105-900
| | - J M Santurio
- Pharmacology Postgraduate Program, Federal University of Santa Maria, Rio Grande do Sul, Brazil, 97105-900; Department of Microbiology and Parasitology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, 97105-900
| |
Collapse
|
2
|
Ludwig A, de Jesus FPK, Dutra V, Cândido SL, Alves SH, Santurio JM. Susceptibility profile of Candida rugosa (Diutina rugosa) against antifungals and compounds of essential oils. J Mycol Med 2019; 29:154-157. [PMID: 30956064 DOI: 10.1016/j.mycmed.2019.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/22/2018] [Accepted: 03/26/2019] [Indexed: 10/27/2022]
Abstract
Candida rugosa (recently reclassified Diutina rugosa) is an emerging pathogen affecting humans and animals. Candida resistance to existing drugs is an important factor to be monitored, as well as the need of researching alternatives to conventional antifungals. Here, we evaluated the in vitro effects of some antifungals and major components of essential oils by the broth microdilution method (CLSI M27-A3) against fifteen C. rugosa strains from animals isolated and molecular identificated. The results showed MIC90 of: 0.125μg/mL to ketoconazole and voriconazole, 0.25μg/mL to micafungin, 0.5μg/mL to anidulafungin, 1μg/mL to caspofungin, 2μg/mL to amphotericin B, itraconazole and flucytosin, 8μg/mL to fluconazole, 16μg/mL to nystatin and >128μg/mL to terbinafine. The compounds carvacrol (MIC90 320μg/mL), thimol (MIC90 320μg/mL) and cinnamaldehyde (MIC90 160μg/mL) demonstrated antifungal activity against the samples tested.
Collapse
Affiliation(s)
- A Ludwig
- Laboratório de Pesquisas Micológicas, Departamento de Microbiologia e Parasitologia, Campus UFSM, Prédio 20, Sala 4139, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - F P K de Jesus
- Laboratório de Pesquisas Micológicas, Departamento de Microbiologia e Parasitologia, Campus UFSM, Prédio 20, Sala 4139, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - V Dutra
- Programa de Pós graduação em Ciências Veterinárias, Universidade Federal do Mato Grosso, 97105-900 Cuiabá, Brazil
| | - S L Cândido
- Programa de Pós graduação em Ciências Veterinárias, Universidade Federal do Mato Grosso, 97105-900 Cuiabá, Brazil
| | - S H Alves
- Laboratório de Pesquisas Micológicas, Programa de Pós graduação em Ciências Farmacêuticas, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - J M Santurio
- Laboratório de Pesquisas Micológicas, Departamento de Microbiologia e Parasitologia, Campus UFSM, Prédio 20, Sala 4139, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
| |
Collapse
|