Additional row of outer hair cells - The unique pattern of the Corti organ in a subterranean rodent, the Gansu zokor (Eospalax cansus)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899016" target="_blank" >RIV/60076658:12310/19:43899016 - isvavai.cz</a>
Result on the web
<a href="https://reader.elsevier.com/reader/sd/pii/S1616504718301964?token=0D28FB98210DC72F0C3D72F48762467EFDCE01811B6EDAE1A8070942B08CAEA03C024DF69FEE68A555A18EC4A3565302" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S1616504718301964?token=0D28FB98210DC72F0C3D72F48762467EFDCE01811B6EDAE1A8070942B08CAEA03C024DF69FEE68A555A18EC4A3565302</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mambio.2018.11.003" target="_blank" >10.1016/j.mambio.2018.11.003</a>
Alternative languages
Result language
angličtina
Original language name
Additional row of outer hair cells - The unique pattern of the Corti organ in a subterranean rodent, the Gansu zokor (Eospalax cansus)
Original language description
Acoustic conditions in burrows are different from those aboveground and restrict hearing of subterranean mammals to low frequencies, which is reflected in the ear morphology. While low-frequency adaptations of the middle ear attracted more attention of researches, the inner ear remained rather understudied. Here, we examined the cochlea of the inner ear of the Gansu zokor (Eospalax cansus), a subterranean rodent from the Tibetan Plateau. We focused on the quantitative parameters of the organ of Corti, which are assumed to determine hearing sensitivity and frequency tuning. Apart from the morphological traits common to the ear of subterranean rodents studied thus far, the Gansu zokor shows two unique features: the presence of a fourth row of outer hair cells along 20% to 50% of the basilar membrane length and almost constant width of the organ of Corti over more than 10% of its spiral length. Both these anomalies occur in the middle of the cochlear spiral. These features are unusual in comparative morphology of the organ of Corti and presumably are reflected in the functional specialization. They are expected to affect sensitivity and /or resolution of hearing in the frequency range registered in the given cochlear segment. The Gansu zokor thus profiles to an interesting candidate for hearing research which might provide further insight not only into morpho-functional adaptations in subterranean mammals in particular but also in the function of outer hair cells in general. (C) 2018 Deutsche Gesellschaft fur Saugetierkunde. Published by Elsevier GmbH. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
<a href="/en/project/GB14-36098G" target="_blank" >GB14-36098G: Center for tropical biology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Mammalian Biology
ISSN
1616-5047
e-ISSN
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Volume of the periodical
94
Issue of the periodical within the volume
JAN 2019
Country of publishing house
DE - GERMANY
Number of pages
7
Pages from-to
11-17
UT code for WoS article
000458165800003
EID of the result in the Scopus database
2-s2.0-85057478700