Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird

Thumbnail image of item number 1 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 2 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 3 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 4 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Showing 1-4 of 7 pages in this article.

PDF Version Also Available for Download.

Description

Article describes SERCA activity in the pectoralis muscle and heart ventricle of red-winged blackbird (Agelaius phoeniceus) nestlings, fledglings and adults. Additionally, using a diet manipulation, the authors tested the hypothesis that muscle SERCA activity is affected by dietary fatty acid composition, as has been shown in some previous studies.

Physical Description

7 p.

Creation Information

Price, Edwin R.; Sirsat, Tushar S.; Sirsat, Sarah K. G. & Dzialowski, Edward M. (Edward Michael) June 28, 2019.

Context

This article is part of the collection entitled: UNT Scholarly Works and was provided by the UNT College of Science to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 11 times. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Authors

Publisher

Provided By

UNT College of Science

The College of Science provides students with the high-demand skills and knowledge to succeed as researchers and professionals. The College includes four departments: Biology, Chemistry, Math, and Physics, and is also home to a number of interdisciplinary programs, centers, institutes, intercollegiate programs, labs, and services.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Degree Information

Description

Article describes SERCA activity in the pectoralis muscle and heart ventricle of red-winged blackbird (Agelaius phoeniceus) nestlings, fledglings and adults. Additionally, using a diet manipulation, the authors tested the hypothesis that muscle SERCA activity is affected by dietary fatty acid composition, as has been shown in some previous studies.

Physical Description

7 p.

Notes

Abstract: Sarco(endo)plasmic reticulum Ca²⁺-ATPase (SERCA) is a transmembrane pump critical to muscle calcium cycling during contraction, and SERCA has also been proposed as the basis for a non-shivering thermogenesis mechanism in birds. Despite its potential importance to both shivering and non-shivering thermogenesis, the activity of this transporter has rarely been studied in altricial birds, and never during the developmental transition from ectothermy to endothermy. Here, we describe SERCA activity in the pectoralis muscle and heart ventricle of red-winged blackbird (Agelaius phoeniceus) nestlings, fledglings and adults. Additionally, using a diet manipulation, we tested the hypothesis that muscle SERCA activity is affected by dietary fatty acid composition, as has been shown in some previous studies. In blackbird hearts, SERCA activity increased throughout development and into adulthood, conspicuously jumping higher just prior to fledging. In pectoralis muscle, SERCA activity increased throughout the nestling period, but then declined after fledging, an effect we attribute to remodeling of the muscle from a primarily heat-generating organ to a primarily force-generating organ. SERCA activity of the pectoralis muscle was correlated with the proportion of linoleic acid in muscle phospholipids when including all ages in the control group. However, in diet-manipulated birds, there was no consistent relationship between SERCA activity and muscle membrane fatty acid composition at any tested age (5–9 days old). It is unclear whether SERCA might be affected by developmental changes in fatty acid composition at younger ages.

Source

  • Journal of Experimental Biology, 222, Company of Biologists, June 28, 2019

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

Publication Information

  • Publication Title: Journal of Experimental Biology
  • Volume: 222
  • Peer Reviewed: Yes

Collections

This article is part of the following collection of related materials.

UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

About | Browse this Collection

What responsibilities do I have when using this article?

Digital Files

When

Dates and time periods associated with this article.

Creation Date

  • June 28, 2019

Added to The UNT Digital Library

  • Aug. 3, 2020, 3:07 p.m.

Description Last Updated

  • Feb. 2, 2021, 4:45 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 11
More Statistics

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 2 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 3 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.
Thumbnail image of item number 4 in: 'Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Price, Edwin R.; Sirsat, Tushar S.; Sirsat, Sarah K. G. & Dzialowski, Edward M. (Edward Michael). Sarcoplasmic reticulum Ca²⁺-ATPase (SERCA) activity during the transition to endothermy in an altricial bird, article, June 28, 2019; (https://digital.library.unt.edu/ark:/67531/metadc1705551/: accessed June 5, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT College of Science.

Back to Top of Screen