The genus Porphyra comprises red algae known as laver. They are distributed throughout Asia and used as food in Korea and other countries. Five species of Porphyra (P. tenera, P. yezoensis, P. seriata, P. suborbiculata and P. dentata) are regarded as ecologically and economically important in Korea. We used random amplified polymorphic DNA (RAPD) to investigate their genetic diversity and phylo...

The relationship between long-term potentiation of synaptic transmission and the release of endogenous glutamate and aspartate has been investigated in the CA1 region of the hippocampus and in the fascia dentata of the anaesthetized rat. A high-frequency train of electrical stimulation of afferent pathways produced a long lasting (greater than 2 h) enhancement of the field excitatory postsynapt...

UNLABELLED PREMISE OF THE STUDY To elucidate the population genetics and phylogeography of Scrophularia incisa, microsatellite primers were developed. We also applied these microsatellite markers to its closely related species S. dentata and S. kiriloviana. • METHODS AND RESULTS Using the compound microsatellite marker technique, 12 microsatellite primers were identified in S. incisa. The ...

Seaweeds have been verified to effectively reduce the nutrients of aquaculture wastewater, and increase economic output when commercially valuable species are utilized. Pyropia/Porphyra/Neopyropia/Neoporphyra important seafood resources globally, their growth bioremediation capacities affected by diverse biotic abiotic stressors. In this study, we investigated effects desiccation (0, 1, 2, 4, 6...

BACKGROUND Pteris vittata L. is rich in flavonoids which exhibit different bioactivities. In order to investigate the flavonoids components of P. vittata L., extracts of the plant were isolated by column chromatography on silica gel and Sephadex LH-20. RESULTS Four flavonoids compounds were obtained, the structures were identified as kaempferol (1), quercetin (2), kaempferol-3-O-d-glucopyrano...

Arsenic (As) is an ubiquitous trace metalloid found in all environmental media. Its presence at elevated concentrations in soils derives from both anthropogenic and natural inputs. Arsenic is a toxic and carcinogenic element, which has caused severe environmental and health problem worldwide. Technologies currently available for the remediation of arsenic-contaminated sites are expensive, envir...