Caulobacter crescentus as a Whole-Cell Uranium Biosensor
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چکیده
منابع مشابه
Caulobacter crescentus as a whole-cell uranium biosensor.
We engineered a strain of the bacterium Caulobacter crescentus to fluoresce in the presence of micromolar levels of uranium at ambient temperatures when it is exposed to a hand-held UV lamp. Previous microarray experiments revealed that several Caulobacter genes are significantly upregulated in response to uranium but not in response to other heavy metals. We designated one of these genes urcA ...
متن کاملCaulobacter crescentus
shaped by their activity — both intrinsic and environment induced — and how these networks support the brain computations that underlie externally observable behavior. The second major challenge facing our young field will be applying the basic discoveries we are making to important real-world issues. It is a widely held view that understanding the brain bases of cognitive and behavioral develo...
متن کاملBiomineralization of uranium by PhoY phosphatase activity aids cell survival in Caulobacter crescentus.
Caulobacter crescentus is known to tolerate high levels of uranium [U(VI)], but its detoxification mechanism is poorly understood. Here we show that C. crescentus is able to facilitate U(VI) biomineralization through the formation of U-Pi precipitates via its native alkaline phosphatase activity. The U-Pi precipitates, deposited on the cell surface in the form of meta-autunite structures, have ...
متن کاملGeneralized Transduction in CAULOBACTER CRESCENTUS.
Two closely related bacteriophage, varphiCr30 and varphiCr35, are the first bacteriophage shown to mediate generalized transduction in Caulobacter crescentus. Unlike most other transducing phage, they are virulent and do not form any sort of lysogenic relationship with their host. However, they are rather inefficient at adsorption, so that transductants have a good chance of survival. The phage...
متن کاملAnalysis of caulobacter crescentus lipids.
The lipids of Caulobacter crescentus, a procaryotic species which differentiates into stalked and swarmer cell types, were analyzed. Major lipid classes were purified by chromatography and identified by both chromatographic and chemical methods. Approximately half of the total lipid fraction of this organism consisted of glycolipis, which were primarily monoglucosyldiglyceride and an acylated g...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2007
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.01566-07