ABSTRACT
A novel actinomycete, designated PA3(T), was isolated from an oil refinery wastewater treatment plant, located in Palos de la Frontera, Huelva, Spain, and characterized taxonomically by using a polyphasic approach. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate formed a distinct subclade in the Pseudonocardia tree together with Pseudonocardia asaccharolytica DSM 44247(T). The chemotaxonomic properties of the isolate, for example, the presence of MK-8 (H(4)) as the predominant menaquinone and iso-C(16:0) as the major fatty acid, are consistent with its classification in the genus Pseudonocardia. DNA:DNA pairing experiments between the isolate and the type strain of P. asaccharolytica DSM 44247(T) showed that they belonged to separate genomic species. The two strains were readily distinguished using a combination of phenotypic properties. Consequently, it is proposed that isolate PA3(T) represents a novel species for which the name Pseudonocardia hispaniensis sp. nov. is proposed. The type strain is PA3(T) (= CCM 8391(T) = CECT 8030(T)).
Subject(s)
Actinomycetales/classification , Actinomycetales/isolation & purification , Industrial Waste , Sewage/microbiology , Wastewater/microbiology , Actinomycetales/genetics , Bacterial Typing Techniques , Cluster Analysis , DNA, Bacterial/chemistry , DNA, Bacterial/genetics , DNA, Ribosomal/chemistry , DNA, Ribosomal/genetics , Fatty Acids/analysis , Molecular Sequence Data , Nucleic Acid Hybridization , Phylogeny , RNA, Ribosomal, 16S/genetics , Sequence Analysis, DNA , Spain , Vitamin K 2/analysisABSTRACT
A prospective research was made on spontaneous bacterial peritonitis (SBP) in chronic liver disease patients presenting with ascites. Forty clinical cases, of 37 patients, were analysed. All subjects were submitted to clinical and laboratory evaluation and diagnostic paracentesis, and the material was obtained for biochemical dosages, pH determination, cytology and bacterial cultures. Thirty cases of sterile ascites and 10 of SBP (25%) were detected. In 5 (50%) with SBP, the clinical findings were characteristic, with fever, abdominal pain and rebound tenderness. In 2 patients (20%) the presentation was atypical, without the complete triad described above. Finally in 3 (30%) SBP was silent, without any suggestive clinical manifestations of infection. In 7 cases (70%) cultures were positives; Streptococcus pneumoniae (3 cases), Streptococcus pyogenes, Staphylococcus negative coagulase, Staphylococcus aureus and Klebsiella pneumoniae (one case each). In 7 (70%) SBP cases, the patients were admitted already infected in the hospital. Lethality in the SBP group was 30% and in the sterile ascites was 13.3%. We concluded that SBP is a frequent cause of morbid-lethality in patients with ascites and chronic hepatopathy, presenting itself often in a typical clinical manifestations.
