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Original Research
Nucleolus-like bodies in the pineal gland of the adult yak (Bos grunniens)
Journal of the South African Veterinary Association | Vol 84, No 1 | a68 |
DOI: https://doi.org/10.4102/jsava.v84i1.68
| © 2013 Zhaohui H. Xie, Ping Gan
| This work is licensed under CC Attribution 4.0
Submitted: 16 April 2012 | Published: 28 May 2013
Submitted: 16 April 2012 | Published: 28 May 2013
About the author(s)
Zhaohui H. Xie, Department of Bioengineering, Henan University of Urban Construction, ChinaPing Gan, Department of Bioengineering, Henan University of Urban Construction, China
Abstract
The pineal glands of adult yak were studied electron microscopically. Nucleolus-like bodies (NLBs) were found mostly in the pinealocytes and the interstitial cells of the pineal glands of the yak. The NLBs were electron-dense, round or ovoid bodies with a diameter of 50 nm – 500 nm. Two types of granules were identified as melanin. These may correspond to different stages of a progressive storage of melanin. Rough endoplasmic reticula with abundant ribosomes were observed. There was no correlation between the number of NLBs and the sex of the animals.
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