actinomycosis/potassium

Secondary metabolites such as antibiotics are typically produced by actinomycetes as a response to growth limiting stress conditions. Several studies have shown that secondary metabolite production is correlated with changes observed in actinomycete pellet morphology. Therefore, we investigated the

For the determination of diaminopimelic acid (DAP) stereoisomers in whole cell hydrolysates as chemotaxonomic markers of actinomycetes, two new pyridine-free solvent systems for TLC on cellulose sheets have been introduced: methanol/0.05 m potassium hydrogenphthalate buffer pH 4 2:1 (v/v) and

In order to probe into the effects of artificial vegetation rehabilitation on soil actinomycetes, dilution plate and agar block methods were used to investigate the ecological distribution and antimicrobial effects of actinomycetes in sandy soil in Shazhuyu area of Qinghai after artificial

We present a rare case of lung actinomycosis in a girl with thalassemia major with a competent immunological status. Chest computed tomography scans showed high intensity nodules in the right lower lung. Diagnosis was confirmed by revealing of actonomycetes from the staining of bronchoalveolar

The enzymes isolated from two selected cultures of thermophilic actinomycetes-Thermomonospora fusca (A 29) and Thermoactinomyces vulgaris (A 60)-possess proteolytic activity. The enzymes were purified more than 35- to 40-fold and showed three bands each upon cellulose acetate electrophoresis at

BACKGROUND Oral ulceration has many causes and is a common presenting symptom in otolaryngology. METHODS This article presents an unusual case of dual pathology oral ulceration in an elderly patient. Oral malignancy was initially suspected, but the history, examination and investigation showed that

Perianal actinomycosis infection is a very rare occurrence and is challenging to diagnose. Nicorandil is a potassium channel agonist, which is used in the treatment of ischaemic heart disease. Its usage is associated with perianal ulceration and delayed surgical wound healing. We report a case of

A strain PSPSA1 with strong phosphate-solubilizing ability was isolated from the rhi-zosphere of tree peony. This strain was identified based on morphological characteristics, physiological and biochemical experiments, and 16S rDNA sequence analysis. Furthermore, its genetic stabi-lity and

The patient was a 75-year-old male who consulted the department of respiratory tract internal medicine in our hospital for left chest pain occurring from the beginning of December 2003. Chest X-ray indicated a tumorous shadow in the left lower lung field. A chest CT also revealed an irregularly

Actinomycetes are an important group of gram-positive bacteria that play an essential role in the rhizosphere ecosystem. The confrontation culture and Oxford cup method were used to evaluate the antagonistic activities of strains, which were isolated from the rhizosphere soil of Mikania micrantha.

In this paper, we report that three species of Salinispora, S. arenicola, S. tropica, and S. pacifica, require magnesium and calcium, for growth, with S. pacifica having the most stringent growth requirement for these ions. Interaction between these ions in supporting the growth of Salinispora was

To explore the distribution of bacterial community and its relationship with soil environmental factors in degraded alpine grasslands in the eastern Qilian Mountains, we analyzed the changes of bacterial community structure and diversity across lightly, moderately and severely degraded grasslands by

The effects of various carbon sources, phosphorus concentration, and different concentrations of the micronutrients calcium, cobalt, copper, iron, manganese, potassium, and zinc were determined on biomass dry weight production, geosmin production, and geosmin/biomass (G/B) values for Streptomyces

This work illustrates the results of vermicomposting trials of noxious weed - Lantana camara (LL) leaf litter spiked with cow dung (CD) in different ratios (0%, 20%, 40%, 60% and 80%) using Eisenia fetida. A total of five treatments were established and changes in chemical and microbial properties