Cellular fatty acid profiles were determined for species in 33 genera of anaerobic gram-negative bacilli and were confirmed to be a useful taxonomic tool. Most of the genera could be differentiated by visual inspection of their profiles. The three genus pairs that were most difficult to distinguish visually (Bacteroides and Prevotella, Pectinatus and Megamonas, and Serpulina and Bilophila) and ...

Elongation by stems of overwintered tubers of Potamogeton pectinatus (L.) is strongly promoted over several days by oxygen-free conditions. Characteristics of the respiration underpinning this unusual response were examined. Anaerobic plants produced ethanol and CO(2) in approximately equimolar amounts, indicating that glycolysis coupled to alcoholic fermentation was the principal CO(2)-produci...

BACKGROUND We present herein our results regarding the accumulation of four heavy metals (copper, cadmium, lead, and zinc) in four aquatic species plants (Ceratophyllum demersum, Potamogeton pectinatus, Potamogeton lucens, Potamogeton perfoliatus) collected from the Danube River, South-Western part of Romania and their possible use as indicators of aquatic ecosystems pollution with heavy metals...

PURPOSE: This technical note uses a modeling approach to examine the impacts of suspended sediment concentrations and current velocity on the persistence of submersed macrophytes in a shallow aquatic system. Studies were conducted on Peoria Lake, Illinois, spanning historical times when a meadow-forming species (Vallisneria americana) successively thrived and disappeared, and current times when...

The consequences of a sudden decrease in water salinity on a macrophyte community dominated by the marine species Zostera noltii were investigated in a shallow coastal lagoon (Southern France). The expected change in the community assemblage was a competitive displacement of Z. noltii by Potamogeton pectinatus and Ruppia cirrhosa. However, the results of an eight-year survey did not validate th...

A hexane extract of the flower-heads of Euryops pectinatus L. (Cass.) was formulated into local anti-inflammatory implantation patches with controlled release. Cross-linked sodium hyaluronate patches (F1-F3) and chitosan patches (F4-F6) were prepared by a casting/solvent evaporation technique. Morphological and mechanical characterizations including the components ratio, surfactant and the load...

Abstract Nowadays, the importance of using macrophytes in accumulation heavy metals has gained great concerns. So, this study aimed at extracting land use/cover types three indices and surface temperatures habitats inside 100 m buffers from recent satellite images around highly economic namely; Phragmites australis, Typha domingensis Potamogeton pectinatus species. In addition to temperature (L...

This paper revises the Afrotropical species of the tribe Eudorylini. The four genera (Claraeola, Clistoabdominalis, Dasydorylas, Eudorylas) present in the Afrotropical Region comprise 77 species (4, 4, 8 and 61 species respectively), 15 of them are new to science: Clistoabdominalis namibiensis, Dasydorylas bodocsi, D. okongoensis, Eudorylas angolae, E. barracloughi, E. brandbergensis, E. femora...