Artículo
The species and physiological diversity of Bifidobacterium genus in Gallus gallus domesticus are influenced by feeding model and niche adaptations
Grande, Sonia María Mercedes
; Argañaraz Martínez, Fernando Eloy
; Babot, Jaime Daniel
; Andrada, Lidia Estefania
; Quiroga, Maria
; Garro, Marisa Selva
; Saguir de Zucal, Fabiana Maria
; Perez Chaia, Adriana Beatriz
Fecha de publicación:
23/01/2024
Editorial:
Brill Academic Publishers
Revista:
Beneficial Microbes
ISSN:
1876-2883
e-ISSN:
1876-2891
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Species diversity of the Bifidobacterium genus was scarcely explored in different rearing systems of poultry. The aim of the study was to isolate intestinal species and compare their physiological and traits for adaptation to the avian intestinal niche. Fourteen strains isolated from chickens of intensive rearing farms and free-range hens, were identified by 16S rDNA sequencing, rep-PCR fingerprinting, and carbohydrates fermentation. Strains belonged to species Bifidobacterium pseudolongum subsp. pseudolongum and subsp. globosum, B. pullorum, B. animalis subsp lactis, B. boum, B. thermacidophilum subsp. thermacidophilum and B. thermophilum. One strain of B. animalis and B. pullorum, and two of B. pseudolongum subsp. pseudolongum were obtained from chicks, while the others were from free-range adult hens. Growth (in MRSc) at the poultry physiological temperature, acids production in cecal water with raffinose (rCW), ex vivo adhesion (%) to avian intestinal epithelial cells (IEC), and auto-aggregation (%) were used for discrimination inter- and intra-specific. Significantly different acetic and lactic acids production and growth temperatures were observed in strains of the same species/subspecies. Remarkable auto-aggregation capability was observed in B. thermacidophilum subsp. thermacidophilum LET 406 (40.2 ± 1.1%), while adhesion property was highlighted in B. pseudolongum subsp. pseudolongum LET 408 (65.30 ± 4.75 % in jejunum; 46.05 ± 2.80 in ileum). Scanning Electronic Microscopy of the interaction IEC-LET 408 revealed an irregular bacterial surface exhibiting vesicle-like arrangements and filaments that formed a network among bacteria cells and with the epithelial cells, as possible adaptative response to promote its persistence in the gut. These finds will be valuable for bacterial supplements design intended to intensive rearing.
Palabras clave:
BIFIDOBACTERIA
,
BROILERS
,
FREE-RANGE HENS
,
DIVERSITY
,
HOST-BACTERIA INTERACTION
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos(CERELA)
Articulos de CENTRO DE REFERENCIA PARA LACTOBACILOS (I)
Articulos de CENTRO DE REFERENCIA PARA LACTOBACILOS (I)
Citación
Grande, Sonia María Mercedes; Argañaraz Martínez, Fernando Eloy; Babot, Jaime Daniel; Andrada, Lidia Estefania; Quiroga, Maria; et al.; The species and physiological diversity of Bifidobacterium genus in Gallus gallus domesticus are influenced by feeding model and niche adaptations; Brill Academic Publishers; Beneficial Microbes; 15; 1; 23-1-2024; 19-38
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