phenanthrene/atrophy

Bridging the gap: Snapshots of 1,6-H-shift precursors indicate that a narrower C-HC(+) separation (D in the ORTEP diagram) in the title complexes induces faster degenerate rearrangement of 1(+). A contact distance of less than 2.7 A is necessary to realize the organic three-center two-electron bond

Phenanthrene (PHE) is an abundant polycyclic aromatic hydrocarbon (PAH), widely distributed in aquatic environment. The aim of this study was to evaluate the histological and molecular effects in the native oyster Crassostrea brasiliana(Lamarck, 1819) exposed to 100 and 1000 μg L(-1) PHE for 1, 5

Histopathological alterations in the reproductive tissue of the female sea urchin Psammechinus miliaris after exposure to the polycyclic aromatic hydrocarbon (PAH) phenanthrene were investigated using light microscopy. Sexually mature sea urchins were exposed to 500 microg L(-1) phenanthrene for 20

A dibenzofuran (DF)-degrader Terrabacter sp. strain DBF63 harbors the dbfA and dbfBC genes for DF degradation and the fln-dbfA, pht, and pca gene clusters for the utilization of fluorene (FN) as a sole carbon source. From this strain, dfdA1, the gene encoding the second DF dioxygenase was detected

Electronic properties of aryl radicals obtained by removing single hydrogen atoms from the sterically congested regions of benzo[c]phenanthrene, biphenyl, triphenylene, phenanthrene, and perylene are studied at the UBLYP/6-311G level of theory. Two structures are considered by each radical, the

Twenty-two polycyclic aromatic hydrocarbon (PAH)-degrading bacterial strains were isolated from Antarctic soils with naphthalene or phenanthrene as a sole carbon source, while no degrader was obtained from an unpolluted sampling site. Phylogenetic analysis showed that all belonged to the genus

Two strains of bacteria were isolated from creosote-contaminated Puget Sound sediment based on their ability to utilize naphthalene as a sole carbon and energy source. When incubated with a polycyclic aromatic hydrocarbon (PAH) compound in artificial seawater, each strain also degraded

Mycobacterium sp strain CH-2 was isolated from a manufactured gas plant contaminated with polycyclic aromatic hydrocarbons (PAHs) and was identified by analysis of 16S rDNA sequences. Strain CH-2 was capable of mineralizing 3- and 4- ring PAHs, including phenanthrene, pyrene, and fluoranthene. In

Mycobacterium vanbaalenii PYR-1 is able to metabolize a wide range of low- and high-molecular-weight (HMW) polycyclic aromatic hydrocarbons (PAHs). A 20-kDa protein was upregulated in PAH-metabolizing M. vanbaalenii PYR-1 cells compared to control cultures. The differentially expressed protein was