MR microscopy of cobalt-labeled nerve cells and pathways in an invertebrate brain (Sepia officinalis, Cephalopoda)
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چکیده
منابع مشابه
The cytoskeleton of chondrocytes of Sepia officinalis (Mollusca, Cephalopoda): an immunocytochemical study.
Our previous electron microscope study showed that chondrocytes from cephalopod cartilage possess a highly developed cytoskeleton and numerous cytoplasmic processes that ramify extensively through the tissue. We have now carried out a light microscope immunocytochemical study of chondrocytes from the orbital cartilage of Sepia officinalis to obtain indications as to the nature of the cytoskelet...
متن کاملNeurogenesis in Cephalopods: “eco-evo-devo” Approach in the Cuttlefish Sepia Officinalis (mollusca-cephalopoda)
Cephalopods are new evolutionary and ecological models. By their phylogenetic position (Lophotrochozoa, Mollusca), they provide a missing master piece in the whole puzzle of neurodevelopment studies. Their derived and specific nervous system but also their convergence with vertebrates offer abundant materials to question the evolution and development of the nervous system of Metazoa (evo-devo s...
متن کاملSteroidogenesis in the brain of Sepia officinalis and Octopus vulgaris.
The presence of vertebrate-like steroids, steroidogenic enzymes and steroid receptors has been reported exclusively in cephalopods gonads. The role played by these steroids has been also recently investigated. We here give evidence of steroidogenic activity in the brain of cephalopods. The activity of two key steroidogenic enzymes: 3beta-hydroxysteroid dehydrogenase (HSD) and 17beta-HSD is pres...
متن کاملEcology of Sepia Officinalis
This article comprises an up-dated review of the processes influencing the distribution and abundance of common cuttlefish Sepia officinalis, the interactions between the species and the main parameters of the environment in which it lives and its trophic, demographic and behavioural ecology.
متن کاملThe cuttlefish Sepia officinalis (Sepiidae, Cephalopoda) constructs cuttlebone from a liquid-crystal precursor
Cuttlebone, the sophisticated buoyancy device of cuttlefish, is made of extensive superposed chambers that have a complex internal arrangement of calcified pillars and organic membranes. It has not been clear how this structure is assembled. We find that the membranes result from a myriad of minor membranes initially filling the whole chamber, made of nanofibres evenly oriented within each memb...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2001
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.1078