PMID- 18250565
OWN - NLM
STAT- MEDLINE
DCOM- 20080307
LR  - 20190606
IS  - 0916-7250 (Print)
IS  - 0916-7250 (Linking)
VI  - 70
IP  - 1
DP  - 2008 Jan
TI  - Phylogenic aspects of the amphibian dual olfactory system.
PG  - 1-9
AB  - The phylogenic significance of the subdivision of dual olfactory system is 
      reviewed mainly on the basis of our findings by electron microscopy and lectin 
      histochemistry in the three amphibian species. The dual olfactory system is 
      present in common in these species and consists of the projection from the 
      olfactory epithelium (OE) to the main olfactory bulb (MOB) and that from the 
      vomeronasal epithelium (VNE) to the accessory olfactory bulb (AOB). The 
      phylogenic significance of subdivisions in the dual olfactory system in the 
      amphibian must differently be interpreted. The subdivision of the MOB into its 
      dorsal region (D-MOB) and ventral region (V-MOB) in Xenopus laevis must be 
      attributed to the primitive features in their olfactory receptors. The middle 
      cavity epithelium lining the middle cavity of this frog possesses both ciliated 
      sensory cells and microvillous sensory cells, reminding the OE in fish. The 
      subdivision of the AOB into the rostral (R-AOB) and caudal part (C-AOB) in Bufo 
      japonicus formosus must be regarded as an advanced characteristic. The lack of 
      subdivisions in both MOB and AOB in Cynops pyrrhogaster may reflect their 
      phylogenic primitiveness. Since our lectin histochemistry to detect 
      glycoconjugates expressed in the olfactory pathway reveals the subdivisions in 
      the dual olfactory system in the amphibian, the glycoconjugates may deeply 
      participate in the organization and function of olfactory pathways in phylogeny.
FAU - Taniguchi, Kazumi
AU  - Taniguchi K
AD  - Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Kitasato 
      University, Towada, Japan. taniguchi@vmas.kitasato-u.ac.jp
FAU - Saito, Shouichiro
AU  - Saito S
FAU - Oikawa, Toshihiro
AU  - Oikawa T
FAU - Taniguchi, Kazuyuki
AU  - Taniguchi K
LA  - eng
PT  - Journal Article
PT  - Review
PL  - Japan
TA  - J Vet Med Sci
JT  - The Journal of veterinary medical science
JID - 9105360
SB  - IM
MH  - Amphibians/*anatomy & histology
MH  - Animals
MH  - Nose/*anatomy & histology
MH  - *Phylogeny
RF  - 72
EDAT- 2008/02/06 09:00
MHDA- 2008/03/08 09:00
CRDT- 2008/02/06 09:00
PHST- 2008/02/06 09:00 [pubmed]
PHST- 2008/03/08 09:00 [medline]
PHST- 2008/02/06 09:00 [entrez]
AID - JST.JSTAGE/jvms/70.1 [pii]
AID - 10.1292/jvms.70.1 [doi]
PST - ppublish
SO  - J Vet Med Sci. 2008 Jan;70(1):1-9. doi: 10.1292/jvms.70.1.