Extracellular alginate lyase secreted by marine Vibrio sp. YWA, isolated from decayed Laminaria japonica, was purified by a combination of ammonium sulfate precipitation and diethylaminoethyl-Sephacel column chromatography. The results show that the molecular mass of alginate lyase was approximately 62.5 kDa, with an optimal pH and temperature at pH 7.0 and 25 degrees C, respectively. K(m) was ...

Marine ecosystems formed by kelp forests are severely threatened global change and local coastline disturbances in many regions. In order to take appropriate conservation, mitigation, restoration actions, it is crucial identify the most diverse populations which could serve as a “reservoir” of genetic diversity. This requires development specific tools, such microsatellite markers investigate l...

A new species of Elasmopus is described and figured from specimens collected in different benthic communities of Arcachon Bay. It can be distinguished from its closest relative E. rapax by the palmar ornamentation of male gnathopod 2 propodus (shelf and 2 teeth). It preferentially lives on hard bottoms (in mussel fouling of navigation buoys, Sabellaria spinulosa reefs, algal rocky bottoms, Lami...

We discuss laparoscopic removal of an abdominal cerclage in a 39-year-old woman, gravida 4, para 0, abortus 3, who presented at 19 weeks' gestation with ruptured membranes. This patient had a failed previous vaginal cerclage. An abdominal cerclage was performed at the time of abdominal myomectomy. A subsequent pregnancy was diagnosed, with ruptured membranes at 19 weeks' gestation, and the pati...

Bacterial ring rot of potato is one of the most serious potato plant and tuber diseases. Laminaria japonica extract was investigated for its antimicrobial activity against Clavibater michiganense subsp. sepedonicum (Spieckermann & Kotthoff) Davis et al., the causative agent of bacterial ring rot of potato. The results showed that the optimum extraction conditions of antimicrobial substances fro...

Direct evidence for coastal iodine particles from Laminaria macroalgae – linkage to emissions of molecular iodine G. McFiggans, H. Coe, R. Burgess, J. Allan, M. Cubison, M. Rami Alfarra, R. Saunders, A. Saiz-Lopez, J. M. C. Plane, D. Wevill, L. Carpenter, A. R. Rickard, and P. S. Monks Atmospheric Physics Group, Physics Dept., University of Manchester Institute of Science and Technology, P.O. B...

The catalytic pyrolysis of Laminaria japonica was carried out over a hierarchical meso-MFI zeolite (Meso-MFI) and nanoporous Al-MCM-48 using pyrolysis gas chromatography/mass spectrometry (Py-GC/MS). The effect of the catalyst type on the product distribution and chemical composition of the bio-oil was examined using Py-GC/MS. The Meso-MFI exhibited a higher activity in deoxygenation and aromat...

A 40-yr-old Sri Lankan female presented to the gastroenterology clinic with jaundice. Further work-up revealed extrahepatic cholestasis with a hepatocellular component; however, subsequent work-up revealed no significant findings. Hospitalization revealed hepatotoxicity associated with ingestion of a homemade herbal tea containing kelp (Laminaria), which was confirmed with further history. Hepa...

The algal dominated communities immediately above and below the low-water spring level on a moderately exposed Manx shore were investigated by canopy removal experiments. Fucus serratus, Laminaria digitata and L. hyperborea were removed. Competition was shown to be important in determining the zonation of L. digitata and the distribution along the wave exposure gradient of other species such as...