Genetic characterization and modification of a bioethanol-producing yeast strain.

Yeast Saccharomyces cerevisiae strains isolated from different sources generally show extensive genetic and phenotypic diversity. Understanding how genomic variations influence phenotypes is important for developing strategies with improved economic traits. The diploid S.

Effect of Pseudomonas sp. HF-1 inoculum on construction of a bioaugmented system for tobacco wastewater treatment: analysis from quorum sensing.

To better construct a bioaugmented system for tobacco wastewater treatment, activated sludge was inoculated with different concentrations of the nicotine-degrading bacterium Pseudomonas sp. HF-1. The results showed that inoculum concentrations of 0.

Bioaugmentation of activated sludge with Acinetobacter sp. TW enhances nicotine degradation in a synthetic tobacco wastewater treatment system.

Bioaugmentation (BA) using Acinetobacter sp. TW with high nicotine-degrading efficiency was applied in a bioreactor receiving a load of COD (3,200 ± 50 mg/L) and nicotine (1.0 ± 0.

Antimicrobial activity of isolate HL-12 against Clavibacter michiganensis subsp. michiganensis in the presence of cadmium.

An actinomycete, strain HL-12, that was isolated from a farmland on the Huajiachi campus of Zhejiang University was capable of inhibiting the growth of Clavibacter michiganensis subsp. michiganensis (Cmm) and was identified as a member of Streptomyces. Its antimicrobial activity against Cmm was measured using the agar plate sensitivity method in pure culture and evaluated by the inhibition ratio of Cmm in soil.

MTH1745, a protein disulfide isomerase-like protein from thermophilic archaea, Methanothermobacter thermoautotrophicum involving in stress response.

MTH1745 is a putative protein disulfide isomerase characterized with 151 amino acid residues and a CPAC active-site from the anaerobic archaea Methanothermobacter thermoautotrophicum. The potential functions of MTH1745 are not clear. In the present study, we show a crucial role of MTH1745 in protecting cells against stress which may be related to its functions as a disulfide isomerase and its chaperone properties.

Response of superoxide dismutase, catalase, and ATPase activity in bacteria exposed to acetamiprid.

Objective: To investigate how acetamiprid, a new insecticide, affects the activity of superoxide dismutase (SOD), catalase (CAT), and ATPase and the SOD isozyme patterns in two G bacteria, E. coli K12 and Pse.FH2, and one G+ bacterum, B.

Isolation and characterization of phenanthrene-degrading Sphingomonas paucimobilis strain ZX4.

Phenanthrene-degrading bacterium strain ZX4 was isolated from an oil-contaminated soil, and identified as Sphingomonas paucimobilis based on 16S rDNA sequence, cellular fatty acid composition, mol% G + C and Biolog-GN tests. Besides phenanthrene, strain ZX4 could also utilize naphthalene, fluorene and other aromatic compounds. The growth on salicylic acid and catechol showed that the strain degraded phenanthrene via salicylate pathway, while the assay of catechol 2,3-dioxygenase revealed catechol could be metabolized through meta-cleavage pathway.