Indole-3-acetic acid improves Escherichia coli's defences to stress (Articolo in rivista)

Type
Label
  • Indole-3-acetic acid improves Escherichia coli's defences to stress (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00203-006-0103-y (literal)
Alternative label
  • Bianco C.; Imperlini E.; Calogero R.; Senatore B.; Amoresano A.; Carpentieri A.; Pucci P.; Defez R. (2006)
    Indole-3-acetic acid improves Escherichia coli's defences to stress
    in Archives of microbiology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bianco C.; Imperlini E.; Calogero R.; Senatore B.; Amoresano A.; Carpentieri A.; Pucci P.; Defez R. (literal)
Pagina inizio
  • 373 (literal)
Pagina fine
  • 382 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 185 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Genetics and Biophysics, Adriano Buzzati Traverso, via P. Castellino 111, 80131 Naples, Italy Dipartimento di Scienze Cliniche e Biologiche, Ospedale S. Luigi, Regione Gonzole 10, Orbassano (TO), Italy Dipartimento di Chimica Organica e Biochimica, Università Federico II di Napoli, Via Cinthia, 80126 Napoli, Italy (literal)
Titolo
  • Indole-3-acetic acid improves Escherichia coli's defences to stress (literal)
Abstract
  • Indole-3-acetic acid (IAA) is a ubiquitous molecule playing regulatory roles in many living organisms. To elucidate the physiological changes induced by IAA treatment, we used Escherichia coli K-12 as a model system. By microarray analysis we found that 16 genes showed an altered expression level in IAA-treated cells. One-third of these genes encode cell envelope components, or proteins involved in bacterial adaptation to unfavourable environmental conditions. We thus investigated the effect of IAA treatment on some of the structural components of the envelope that may be involved in cellular response to stresses. This showed that IAA-treated cells had increased the production of trehalose, lipopolysaccharide (LPS), exopolysaccharide (EPS) and biofilm. We demonstrated further that IAA triggers an increased tolerance to several stress conditions (heat and cold shock, UV-irradiation, osmotic and acid shock and oxidative stress) and different toxic compounds (antibiotics, detergents and dyes) and this correlates with higher levels of the heat shock protein DnaK. We suggest that IAA triggers an increased level of alert and protection against external adverse conditions by coordinately enhancing different cellular defence systems. (literal)
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