"Red" fibres of pigeon pectoralis major muscle are "Type II Red"

Khan M.A. (1978) "Red" fibres of pigeon pectoralis major muscle are "Type II Red". Histochemistry, 55 1: 75-79. doi:10.1007/BF00496696


Author Khan M.A.
Title "Red" fibres of pigeon pectoralis major muscle are "Type II Red"
Journal name Histochemistry   Check publisher's open access policy
ISSN 0301-5564
Publication date 1978-01-01
Sub-type Article (original research)
DOI 10.1007/BF00496696
Volume 55
Issue 1
Start page 75
End page 79
Total pages 5
Publisher Springer-Verlag
Subject 2702 Anatomy
Abstract On the basis of the histochemical activity of succinic dehydrogenase, only two fibre-types are distinguished in pigeon pectoralis major muscle. These are narrow "Red" and broad "White". The histochemical activity of myofibrillar ATPase was studied in these two distinct fibre-types. Both fibre-types showed high activity for the ATPase. "Red" fibres of pigeon pectoralis were not alkali-labile, at incubation pH 9.4, as were the "Type I" fibres of both avian and mammalian muscles. Again unlike "Type I" fibres, the "Red" fibres of pigeon pectoralis lacked the characteristic activation of acid-preincubated ATPase reaction. Pigeon pectoralis "Red" fibres are known to posses some characteristics of fast-twitch fibres (e.g. high fat, considerable phosphorylase, fibrillenstruktur myofibrillar arrangement, focal "en plaque" pattern of nerve endings). It is emphasized, therefore, that the pigeon pectoralis "Red" fibres are not equivalent to "Type I or slow-twitch", muscle fibres, but they are possibly "fast-twitch fatigue resistent or Type II Red" muscle fibres.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 14 Jun 2016, 10:55:15 EST by System User