Differential expression of the type III secretion system genes in Yersinia ruckeri: Preliminary investigations in different environmental conditions.
Yersinia ruckeri
Q‐PCR
environmental challenges
fish pathogen
gene modulation
type III secretion system
Journal
Journal of fish diseases
ISSN: 1365-2761
Titre abrégé: J Fish Dis
Pays: England
ID NLM: 9881188
Informations de publication
Date de publication:
06 Sep 2024
06 Sep 2024
Historique:
revised:
29
07
2024
received:
27
05
2024
accepted:
05
08
2024
medline:
6
9
2024
pubmed:
6
9
2024
entrez:
6
9
2024
Statut:
aheadofprint
Résumé
Type III secretion system (T3SS) is an important virulence system in Gram-negative bacteria. In this investigation, different environmental conditions that regulate the expression of T3SS genes in Yersinia ruckeri were investigated aimed at obtaining a better understanding about its modulation after various environmental challenges. Four isolates of Y. ruckeri CSF007-82, ATCC29473, A7959-11 and YRNC10 were cultivated under the diverse in vitro challenges iron depletion, high salt, low pH and in the presence of fish serum or in the fish cell culture (Chinook Salmon Embryo - CHSE). The transcriptional modulation of the chromosomal genes ysaV, ysaC, ysaJ and prgH of ysa were investigated using quantitative real-time PCR. The expression of prgH, ysaV, ysaC and ysaJ was differentially expressed in all four strains under evaluation. The highest gene expression levels were observed for Y. ruckeri YRNC10 AN after addition of 0.3 M NaCl in Luria Bertani broth. The results obtained from this study provide initial insights into T3SS responses in Y. ruckeri, which pave the way for further studies aimed at expanding our knowledge on the functional roles of the T3SS genes in Y. ruckeri.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e14007Informations de copyright
© 2024 The Author(s). Journal of Fish Diseases published by John Wiley & Sons Ltd.
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