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Complex toxin profiles in phytoplankton and Greenshell mussels (Perna canaliculus), revealed by LC-MS/MS analysis.
Toxic marine epiphytic dinoflagellates, Ostreopsis siamensis and Coolia monotis (Dinophyceae), in New Zealand
L Lectin probes differentiated the two species, suggesting differential sugar moieties at their cell surfaces, and O. siamensis was cytotoxic, and irreversibly suppressed cell firing in hippocampal brain slices.
Pectenotoxin and okadaic acid-based toxin profiles in Dinophysis acuta and Dinophysis acuminata from New Zealand
DIFFERENCES IN THE PRODUCTION AND EXCRETION KINETICS OF OKADAIC ACID, DINOPHYSISTOXIN‐1, AND PECTENOTOXIN‐2 BETWEEN CULTURES OF DINOPHYSIS ACUMINATA AND DINOPHYSIS FORTII ISOLATED FROM WESTERN JAPAN 1
Although no significant growth was observed in D. acuminata in the medium containing the cell debris and organic substances originated from M. rubra, the toxicity was significantly greater than that in the control and suggested the availability of organic substances for toxin production.
Production of dinophysistoxin-1 and pectenotoxin-2 by a culture of Dinophysis acuminata (Dinophyceae)
Effect of temperature on production of okadaic acid, dinophysistoxin-1, and pectenotoxin-2 by Dinophysis acuminata in culture experiments
The results indicate that increasing temperature generally stimulates toxin production in D. acuminata populations due to an increase in cell density, but cellular content and production rates of OA and PTX2 in response to temperature differ and are influenced by growth phase.
Re-examination of Mg-dechelation reaction in the degradation of chlorophylls using chlorophyllin a as a substrate
The Mg-dechelating activity of extracts of Chenopodium album (goosefoot) was investigated using an artificial substrate, chlorophyllin a, and the purified Mm-releasing protein showed neither peroxidase activity nor absorption bands in the visible region, and this indicates that the M g-re releasing protein is clearly distinct from horseradish peroxIDase, which is a heme-containing protein.
Discovery of an ancient lineage of Cyprinus carpio from Lake Biwa, central Japan, based on mtDNA sequence data, with reference to possible multiple origins of koi
MtDNA sequence data showed a principal phylogenetic split within common carp Cyprinus carpio between the Lake Biwa wild form and 'Eurasian' wild and domesticated forms, and a possible multiple origin of koi carp was indicated by the polyphyletic distribution of five mtDNA haplotypes of koa carp within the 'EURAian' clade.
Variety of PSP toxin profiles in various culture strains of Alexandrium tamarense and change of toxin profile in natural A. tamarense population
Mitochondrial DNA divergence in yoshinobori gobies (Rhinogobius species complex) between the Bonin Islands and the Japan–Ryukyu Archipelago
- T. Mukai, Shozo Nakamura, Toshiyuki Suzuki, M. Nishida
- BiologyIchthyological Research
- 25 November 2005
To investigate the genetic differentiation between the Bonin Island (BI) form (Ogasawara-yoshinobori) and the Japan–Ryukyu Archipelago relatives, the mitochondrial DNA (mtDNA) phylogeny of Japanese Rhinogobius species was inferred from partial nucleotide sequences of the mitochondrial NADH dehydrogenase 5 subunit (ND5) gene.