Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine
Leptospirosis is a zoonotic disease of global distribution, caused by bacteria of the genus Leptospira. These spirochetes are living organisms free of mud and water; pathogenic leptospires can survive several days in fresh water when pH and temperature are adequate. During 2016, water samples were c...
| Autores principales: | , , , , , |
|---|---|
| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Faculty of Biotechnology and Food Sciences, Slovakia
2019
|
| Materias: | |
| Acceso en línea: | https://www.jmbfs.org/issue/june-july-2019-vol-8-no-6/jmbfs_77_exequiel/?issue_id=5669&article_id=5 http://hdl.handle.net/20.500.12123/5782 https://doi.org/10.15414/jmbfs.2019.8.6.1265-1270 |
| _version_ | 1855035559074856960 |
|---|---|
| author | Scialfa, Exequiel Videla, Yanina Grune Loffler, Sylvia Quintana, Silvina Aguirre, Pablo Brihuega, Bibiana Felicitas |
| author_browse | Aguirre, Pablo Brihuega, Bibiana Felicitas Grune Loffler, Sylvia Quintana, Silvina Scialfa, Exequiel Videla, Yanina |
| author_facet | Scialfa, Exequiel Videla, Yanina Grune Loffler, Sylvia Quintana, Silvina Aguirre, Pablo Brihuega, Bibiana Felicitas |
| author_sort | Scialfa, Exequiel |
| collection | INTA Digital |
| description | Leptospirosis is a zoonotic disease of global distribution, caused by bacteria of the genus Leptospira. These spirochetes are living organisms free of mud and water; pathogenic leptospires can survive several days in fresh water when pH and temperature are adequate. During 2016, water samples were collected from Callvú Leovú stream (Azul, Buenos Aires); samples were inoculated in liquid EMJH medium and incubated at 28° C for 90 days. Six isolates of saprophytic leptospires and six of spirils (Aquaspirillum spp.) were obtained. The isolates were inoculated in EMJH (liquid and semi-solid) medium and sterile stream water at 4-10° C and 28-30° C; development was observed periodically using dark field microscopy. Both bacteria (alone or together) grew exponentially in first three weeks in all media incubated at 28-30° C; the semi-solid medium was the most efficient at 28-30° C of incubation, and the bacteria remained viable after 16 weeks. At 4-8° C both bacteria remained undetectable but viable in media incubated at 4-8° C for three weeks until the temperature was optimal (thermal stimulation). Leptospires developed in all media used and remained viable for 112 to 168 days (at 4-8° C incubation) in liquid media. The formation of cellular aggregate between Leptospira spp. and Aquaspirillum spp. was independent at the incubation temperature. These results suggest that Aquaspirillum spp. coexists with the genus Leptospira in surface waters, and their presence may indicate possible circulation of leptospires. |
| format | info:ar-repo/semantics/artículo |
| id | INTA5782 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Faculty of Biotechnology and Food Sciences, Slovakia |
| publisherStr | Faculty of Biotechnology and Food Sciences, Slovakia |
| record_format | dspace |
| spelling | INTA57822019-09-05T11:04:23Z Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine Scialfa, Exequiel Videla, Yanina Grune Loffler, Sylvia Quintana, Silvina Aguirre, Pablo Brihuega, Bibiana Felicitas Leptospira Aislamiento Argentina Isolation Saprophytism Saprofitismo Aquaspirillum Leptospirosis is a zoonotic disease of global distribution, caused by bacteria of the genus Leptospira. These spirochetes are living organisms free of mud and water; pathogenic leptospires can survive several days in fresh water when pH and temperature are adequate. During 2016, water samples were collected from Callvú Leovú stream (Azul, Buenos Aires); samples were inoculated in liquid EMJH medium and incubated at 28° C for 90 days. Six isolates of saprophytic leptospires and six of spirils (Aquaspirillum spp.) were obtained. The isolates were inoculated in EMJH (liquid and semi-solid) medium and sterile stream water at 4-10° C and 28-30° C; development was observed periodically using dark field microscopy. Both bacteria (alone or together) grew exponentially in first three weeks in all media incubated at 28-30° C; the semi-solid medium was the most efficient at 28-30° C of incubation, and the bacteria remained viable after 16 weeks. At 4-8° C both bacteria remained undetectable but viable in media incubated at 4-8° C for three weeks until the temperature was optimal (thermal stimulation). Leptospires developed in all media used and remained viable for 112 to 168 days (at 4-8° C incubation) in liquid media. The formation of cellular aggregate between Leptospira spp. and Aquaspirillum spp. was independent at the incubation temperature. These results suggest that Aquaspirillum spp. coexists with the genus Leptospira in surface waters, and their presence may indicate possible circulation of leptospires. Instituto de Patobiología Fil: Scialfa, Exequiel. Ministerio de Salud. División Zoonosis Rurales; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía; Argentina Fil: Videla, Yanina. Ministerio de Salud. División Zoonosis Rurales; Argentina. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires; Argentina Fil: Grune Loffler, Sylvia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Quintana, Silvina. Instituto de Análisis Fares Taie; Argentina Fil: Aguirre, Pablo. Ministerio de Salud. División Zoonosis Rurales; Argentina Fil: Brihuega, Bibiana Felicitas. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina 2019-09-05T10:58:22Z 2019-09-05T10:58:22Z 2019-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.jmbfs.org/issue/june-july-2019-vol-8-no-6/jmbfs_77_exequiel/?issue_id=5669&article_id=5 http://hdl.handle.net/20.500.12123/5782 1338-5178 https://doi.org/10.15414/jmbfs.2019.8.6.1265-1270 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Faculty of Biotechnology and Food Sciences, Slovakia Journal of Microbiology, Biotechnology and Food Sciences 8 (6) : 1265-1270 (Julio 2019) |
| spellingShingle | Leptospira Aislamiento Argentina Isolation Saprophytism Saprofitismo Aquaspirillum Scialfa, Exequiel Videla, Yanina Grune Loffler, Sylvia Quintana, Silvina Aguirre, Pablo Brihuega, Bibiana Felicitas Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title | Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title_full | Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title_fullStr | Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title_full_unstemmed | Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title_short | Biofilm formation by Aquaspirillum spp. and saprophytic Leptospira spp. isolated from environmental source of Argentine |
| title_sort | biofilm formation by aquaspirillum spp and saprophytic leptospira spp isolated from environmental source of argentine |
| topic | Leptospira Aislamiento Argentina Isolation Saprophytism Saprofitismo Aquaspirillum |
| url | https://www.jmbfs.org/issue/june-july-2019-vol-8-no-6/jmbfs_77_exequiel/?issue_id=5669&article_id=5 http://hdl.handle.net/20.500.12123/5782 https://doi.org/10.15414/jmbfs.2019.8.6.1265-1270 |
| work_keys_str_mv | AT scialfaexequiel biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine AT videlayanina biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine AT grunelofflersylvia biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine AT quintanasilvina biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine AT aguirrepablo biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine AT brihuegabibianafelicitas biofilmformationbyaquaspirillumsppandsaprophyticleptospirasppisolatedfromenvironmentalsourceofargentine |