Molecules exuded by plant roots are thought to act as signals to influence the ability of microbial strains to colonize the roots and to survive in the rhizosphere. Differential bacterial responses to signals from different plant species may mediate the selection of specific rhizosphere populations. Very little, however, is known about the effects of plant exudates on patterns of bacterial gene...

The inhibitory effect of propiconazole on strigolactone (SL) production and Striga hermonthica emergence were evaluated using rice plants. A significant reduction in SL levels was detected root exudates after treated with different doses propiconazole. Propiconazole induced second tiller bud outgrowth seedlings. In accordance the results 4-deoxyorobanchol exudates, propiconazole-treated attenua...

Root canal samples, taken from periapical tissue exudates during routine root canal treatment procedures, were processed for identification of tumor necrosis factor using a mouse anti-human monoclonal antibody and enzyme-linked immunosorbent assay. Detectable levels of tumor necrosis factor were identified in periapical tissue exudates in chronic apical periodontitis.

The samples of pleural fluid obtained by thoracentesis for the diagnosis of transudates and exudates shall follow a routine of collection and preservation for an appropriate laboratorial analysis. Equally, fragments of pleura biopsy obtained for the differential diagnosis of the exudates should be collected in a systematic way in order to optimize the diagnosis and facilitate the institution of...

Blood and pleural exudate samples were obtained from 16 patients receiving intermittent or continuous infusions of vancomycin after lung surgery. The areas under the concentration-time curves for blood and pleural exudates were identical for both administration schedules, while continuous infusion allowed the concentrations in pleural exudates to be more sustained (mean concentration, 12 mg/lit...

In laboratory and industrial cultivation of marine microalgae, it is customary to enrich cultures with macronutrients (N, P), chelated trace metals, vitamins at ~104× concentrations found in nature obtain high culture densities. Other naturally occurring growth-promoting compounds local seawater are not enriched remain environmental concentrations. Microalgae may thus be deprived the mutualisti...

UNLABELLED The differentiation between exudates and transudates is the initial step in the analysis of pleural effusions as it often gives an indication of the underlying pathophysiologic process, the differential diagnosis, and the need for further investigations. Four classifications have been suggested in the literature: Light's criteria, serum-effusion albumin gradient, effusion cholesterol...

Objectives: To evaluate the usefulness of diverse combinations of pleural cholesterol concentration, pleural or serum protein, and lactate dehydrogenase (LDH) levels for the differentiation ofpleural exudates and transudates. Design: Prospective laboratory study of pleural effu¬ sions. Setting: Medical school hospital. Patients: One hundred eighty consecutive internal medicine ward patients in ...