دورية أكاديمية
Pseudomonas pseudoalcaligenes KF707 upon biofilm formation on a polystyrene surface acquire a strong antibiotic resistance with minor changes in their tolerance to metal cations and metalloid oxyanions.
| العنوان: | Pseudomonas pseudoalcaligenes KF707 upon biofilm formation on a polystyrene surface acquire a strong antibiotic resistance with minor changes in their tolerance to metal cations and metalloid oxyanions. |
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| المؤلفون: | Tremaroli V, Turner RJ, Ceri H, FEDI, STEFANO, ZANNONI, DAVIDE |
| المساهمون: | Tremaroli V, Fedi S, Turner RJ, Ceri H, Zannoni D. |
| سنة النشر: | 2008 |
| المجموعة: | IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
| مصطلحات موضوعية: | PSEUDOMONAS PSEUDOALCALIGENES KF707, BIOFILM FORMATION, METAL AND METALLOID TOLERANCE, POLYSTYRENE SURFACE, CALGARY DEVICE BIOFILM |
| الوصف: | The susceptibility to various biocides was examined in planktonic cells and biofilms of the obligate aerobe, PCBs degrader, Pseudomonas pseudoalcaligenes KF707. The toxicity of two antibiotics, amikacin and rifampicin, three metalloid oxyanions (AsO2(-), SeO3(2-), TeO3(2-)) and three metal cations (Cd2+, Ni2+, Al3+) was tested at two stages of the biofilm-development (4 and 24 h) and compared to planktonic cells susceptibility. Mature biofilms formed in rich (LB, Luria-Bertani) medium were thicker (23 microm) than biofilms grown in minimal (SA saccarose-arginine) medium (13 microm). Early grown (4 h) SA-biofilms, which consisted of a few sparse/attached cells, were 50-100 times more resistant to antibiotics than planktonic cells. Conversely, minor changes in tolerance to metal(loid)s were seen in both SA- and LB-grown biofilms. In contrast to planktonic cells, no reduction of TeO3(2-) to elemental Te0 or SeO3(2-) to elemental Se0 was seen in KF707 biofilms. The data indicate that: (a) metal tolerance in KF707 biofilms, under the growth and exposure conditions described here, is different than antibiotic tolerance; (b) KF707 planktonic cells and biofilms, are almost equally susceptible to killing by metal cations and oxyanions, and (c) biofilm-tolerance to TeO3(2-) and SeO3(2-) is not linked to metalloid reduction; this means that KF707 planktonic cells and biofilms differ in their physiology and strategy to counteract metalloid toxicity. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/18437359; info:eu-repo/semantics/altIdentifier/wos/WOS:000256927000004; volume:190; firstpage:29; lastpage:39; numberofpages:10; journal:ARCHIVES OF MICROBIOLOGY; http://hdl.handle.net/11585/62878Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-45849094410 |
| DOI: | 10.1007/s00203-008-0360-z |
| الإتاحة: | https://doi.org/10.1007/s00203-008-0360-zTest http://hdl.handle.net/11585/62878Test |
| رقم الانضمام: | edsbas.DFF4B280 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s00203-008-0360-z |
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