Sensory deprivation in Staphylococcus aureus

Villanueva San Martín, Maite; García Martínez, Begoña; Valle Turrillas, Jaione; Rapún Araiz, Beatriz; Ruiz de los Mozos Aliaga, Igor; Solano Goñi, Cristina; Martí, Miguel; Penadés, José R.; Toledo Arana, Alejandro; Lasa Uzcudun, Íñigo; IdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutua

Sensory deprivation in Staphylococcus aureus

2018

Bacteria use two-component systems (TCSs) to sense and respond to environmental changes. The core genome of the major human pathogen Staphylococcus aureus encodes 16 TCSs, one of which (WalRK) is essential. Here we show that S. aureus can be deprived of its complete sensorial TCS network and still survive under growth arrest conditions similarly to wild-type bacteria. Under replicating conditions, however, the WalRK system is necessary and sufficient to maintain bacterial growth, indicating that sensing through TCSs is mostly dispensable for living under constant environmental conditions. Characterization of S. aureus derivatives containing individual TCSs reveals that each TCS appears to be autonomous and self-sufficient to sense and respond to specific environmental cues, although some level of cross-regulation between non-cognate sensor-response regulator pairs occurs in vivo. This organization, if confirmed in other bacterial species, may provide a general evolutionarily mechanism for flexible bacterial adaptation to life in new niches.

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This work was supported by the Spanish Ministry of Economy and Competitiveness grants BIO2011-30503-C02-02, BIO2014-53530-R, SAF2014-56716-REDT, and RTC-2015-3184-1. J.V. was supported by Ramon y Cajal (RYC-2009-03948) contract from the Spanish Ministry of Economy and Competitiveness.

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Mots clés AGROVOC

staphylococcus aureus

Informations bibliographiques

Editeur

Springer Nature

D'autres materias

Sensory deprivation; Two-component systems

Langue

anglais

Format

application/pdf, application/zip

Licence

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ISSN

2041-1723

Type

Info:eu-Repo/semantics/article; Info:eu-Repo/semantics/publishedversion

Sur AGRIS depuis: 2024-12-20

Date de modification: 2025-06-17

Format: Dublin Core

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Liens

DOI https://academica-e.unavarra.es/handle/2454/30524