A5084680080- Marine Bivalve and Aquaculture Studies
- Reproductive biology and impacts on aquatic species
- Marine Biology and Environmental Chemistry
- Calcium Carbonate Crystallization and Inhibition
- Aquaculture Nutrition and Growth
- Fish Biology and Ecology Studies
- Aquatic Invertebrate Ecology and Behavior
- Neurobiology and Insect Physiology Research
- Bone Tissue Engineering Materials
- Marine and fisheries research
- Animal Genetics and Reproduction
- Environmental Toxicology and Ecotoxicology
- Cephalopods and Marine Biology
- Genetics, Aging, and Longevity in Model Organisms
- Physiological and biochemical adaptations
- Viral Infectious Diseases and Gene Expression in Insects
- Reproductive Health and Technologies
- Crustacean biology and ecology
- Paleontology and Stratigraphy of Fossils
- Reproductive Biology and Fertility
- Reproductive tract infections research
- Image Processing and 3D Reconstruction
- Ovarian function and disorders
- Hemostasis and retained surgical items
- Collagen: Extraction and Characterization
Japan Fisheries Research and Education Agency
2004-2022
Japan International Research Center for Agricultural Sciences
2005
The pond snail Lymnaea stagnalis is capable of learning taste aversion and consolidating this into long-term memory (LTM) that called conditioned (CTA). Previous studies showed some molluscan insulin-related peptides (MIPs) were upregulated in snails exhibiting CTA. We thus hypothesized MIPs play an important role neurons underlying the CTA–LTM consolidation process. To examine hypothesis, we first observed distribution MIP II, a major peptide MIPs, receptor determined amounts their mRNAs...
Abstract The pond snail Lymnaea stagnalis is an excellent model system in which to study the neuronal and molecular substrates of associative learning its consolidation into long‐term memory. Until now, presence cyclic AMP (cAMP)‐responsive element binding protein (CREB), believed be a necessary component process learned behavior that consolidated memory, has only been assumed neurons. We therefore cloned analyzed cDNA sequences homologues CREB1 CREB2 determined these mRNAs identifiable...
Insulin-related peptide cDNA was characterized in the Pacific oyster Crassostrea gigas. It determined that three transcripts with differing lengths of 3′-untranslated region (3′-UTR) were expressed visceral ganglia. The insulin-related contained a number AUUUA motifs typical adenylate/uridylate-rich elements 3′-UTR. deduced preprohormone polypeptide 161 residues and showed conformation preprohormones insulin superfamily, which included conserved amino acids necessary to adopt globular...
Molluscan reproduction has been a target of biological research because the various reproductive strategies that have evolved in this phylum. It also studied for development fisheries technologies, particularly aquaculture. Although fundamental processes other phyla, such as vertebrates and arthropods, well studied, information on molecular mechanisms molluscan remains limited. The recently released draft genome pearl oyster Pinctada fucata provides novel powerful platform obtaining...
Abstract Gametogenesis of one year-old induced triploid mussels, Mytilus galloprovincialis, was examined histologically and compared to sibling diploid mussels. Histological analysis revealed that mussels developed a number primary spermatocytes were arrested at prophase I. Late in the reproductive season, produced an extremely small spermatozoa (9/10000 μm2 gonadal section) (1072/10000 section). All identified as males, whereas sex ratio almost equal (1.12:1.0, male:female), indicating...
A paramyxean parasite infection was observed in the epithelial cells of stomach, intestine, and digestive diverticula Manila clam Ruditapes philippinarum collected from Odawa Bay, Japan. The mean detection frequency between April 2010 September 2011 as revealed by histology 8.9% with a maximum monthly 28.6%, but remarkable mass mortality not recognized during study period. Sporulation parasites involves repeated production intracellular cells, primary cell contains 8 secondary which 4...
Summary We conducted a comparative stereological analysis of diploid and induced triploid Mytilus galloprovincialis germinal storage tissue volume fractions along an annual cycle, concomitantly to the irnmunocytochemical study cerebral insulin-like peptide (ILP) secretion. Germinal developed same extent in diploids triploids, while disappeared with pattern both populations. present irnrnunocytochemical evidence ILP cycle for first time bivalves. Moreover, this is closely related...