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Title: Neuronal classification and distribution in the central nervous system of the female mud crab, Scylla olivacea
Authors: Napamanee Kornthong
Yotsawan Tinikul
Kanjana Khornchatri
Jirawat Saeton
Sirilug Magerd
Saowaros Suwansa-Ard
Thanapong Kruangkum
Peter J. Hanna
Prasert Sobhon
Mahidol University
Thammasat University
Deakin University
Keywords: Health Professions;Medicine;Physics and Astronomy
Issue Date: 1-Mar-2014
Citation: Microscopy Research and Technique. Vol.77, No.3 (2014), 189-200
Abstract: The mud crab, Scylla olivacea, is one of the most economically valuable marine species in Southeast Asian countries. However, commercial cultivation is disadvantaged by reduced reproductive capacity in captivity. Therefore, an understanding of the general and detailed anatomy of central nervous system (CNS) is required before investigating the distribution and functions of neurotransmitters, neurohormones, and other biomolecules, involved with reproduction. We found that the anatomical structure of the brain is similar to other crabs. However, the ventral nerve cord (VNC) is unlike other caridian and dendrobrachiate decapods, as the subesophageal (SEG), thoracic and abdominal ganglia are fused, due to the reduction of abdominal segments and the tail. Neurons in clusters within the CNS varied in sizes, and we found that there were five distinct size classes (i.e., very small globuli, small, medium, large, and giant). Clusters in the brain and SEG contained mainly very small globuli and small-sized neurons, whereas, the VNC contained small-, medium-, large-, and giant-sized neurons. We postulate that the different sized neurons are involved in different functions. Microsc. Res. Tech. 77:189-200, 2014. © 2013 Wiley Periodicals, Inc.
ISSN: 10970029
Appears in Collections:Scopus 2011-2015

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