Homologous npdGI Genes in 2,4-Dinitrophenol- and 4-Nitrophenol-Degrading Rhodococcus spp
نویسندگان
چکیده
منابع مشابه
Comparative study of toxicity of 4-nitrophenol and 2,4-dinitrophenol in newborn and young rats.
The toxicities of 4-nitrophenol and 2,4-dinitrophenol in newborn and young rats was examined and the susceptibility of newborn rats was analyzed in terms of presumed unequivocally toxic and no observed adverse effect levels (NOAELs). In the 18-day repeated dose newborn rat study, 4-nitrophenol was orally given from Day 4 to Day 21 after birth but did not induce any toxicity up to 160 mg/kg in t...
متن کاملDraft genome sequence of the nitrophenol-degrading actinomycete Rhodococcus imtechensis RKJ300.
We report the 8.231-Mb genome sequence of Rhodococcus imtechensis RKJ300, isolated from pesticide-contaminated soil in Punjab, India. The genome sequence of the strain RKJ300 will be helpful in exploring the molecular pathways involved in the degradation of nitrophenols.
متن کاملRoot nodule Bradyrhizobium spp. harbor tfdAalpha and cadA, homologous with genes encoding 2,4-dichlorophenoxyacetic acid-degrading proteins.
The distribution of tfdAalpha and cadA, genes encoding 2,4-dichlorophenoxyacetate (2,4-D)-degrading proteins which are characteristic of the 2,4-D-degrading Bradyrhizobium sp. isolated from pristine environments, was examined by PCR and Southern hybridization in several Bradyrhizobium strains including type strains of Bradyrhizobium japonicum USDA110 and Bradyrhizobium elkanii USDA94, in phylog...
متن کاملMechanism of 4-nitrophenol oxidation in Rhodococcus sp. Strain PN1: characterization of the two-component 4-nitrophenol hydroxylase and regulation of its expression.
4-Nitrophenol (4-NP) is a toxic product of the hydrolysis of organophosphorus pesticides such as parathion in soil. Rhodococcus sp. strain PN1 degrades 4-NP via 4-nitrocatechol (4-NC) for use as the sole carbon, nitrogen, and energy source. A 5-kb EcoRI DNA fragment previously cloned from PN1 contained a gene cluster (nphRA1A2) involved in 4-NP oxidation. From sequence analysis, this gene clust...
متن کاملIsolation and characterization of dibenzofuran-degrading actinomycetes: analysis of multiple extradiol dioxygenase genes in dibenzofuran-degrading Rhodococcus species.
Sixteen actinomycetes capable of utilizing dibenzofuran as a sole source of carbon and energy were isolated, including Rhodococcus, Microbacterium, and Terrabacter genera. Heretofore, no dibenzofuran-utilizing strain belonging to the genus Microbacterium has been reported. Five extradiol dioxygenase genes (dfdB, and edil to 4) of the strain Rhodococcus sp. YK2 were cloned and analyzed. The nucl...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2003
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.69.5.2748-2754.2003