A variety of genes are involved in determining the level of organic solvent tolerance of Escherichia coli K-12. Gene ostA is one of the genes contributing to the level of organic solvent tolerance. This gene was cloned from an n-hexane-tolerant strain of E. coli, JA300. A JA300-based n-hexane-sensitive strain, OST4251, was converted to the n-hexane-tolerant phenotype by transformation with DNA ...

petroleum contamination of soil is a serious problem throughout the oil producer countries. vegetation may play an important role in the biodegradation of toxic organic chemicals in soil. for petroleum compounds, the presence of rhizosphere micro flora may accelerate biodegradation of the contaminants. in a greenhouse study, petroleum contaminated soil were treated using phytoremediation . the ...

Organic thermoelectrics (OTEs) have been recently intensively investigated as they hold promise for flexible, large-area, and low-cost energy generation or heating–cooling devices appealing app...

glycopeptides are expected to greatly mediate their biological properties and functions.') The demand for easy synthesis of such peptides and proteins bearing sugar chains is thus increasing.2} The synthesis of N-linked glycopeptides has been performed by transglycosylating the entire structure of a high-mannose type or complex-type sugar chain to GlcNAc-linked peptides by utilizing endo N-acet...

Humidity is one of the main environmental factors affecting the emission rate and key parameters of formaldehyde and volatile organic compounds (VOCs) from building materials. Meanwhile, the initial emittable concentration (Cm,0) is proved to be the most sensitive key parameter to the emission behaviours. However, there is no report on the relationship between humidity and Cm,0. In this paper, ...