Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer
Seasonal changes in bacterial colonization of the epithelial tissue were examined in the rumen of high-arctic Svalbard reindeer. Samples of tissue were collected from eight sites in the rumen of reindeer during summer and winter and bacterial colonization was examined using scanning and transmission...
Published in: | Canadian Journal of Microbiology |
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1993
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Online Access: | http://dx.doi.org/10.1139/m93-014 http://www.nrcresearchpress.com/doi/pdf/10.1139/m93-014 |
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crcansciencepubl:10.1139/m93-014 2024-04-28T08:09:06+00:00 Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer Cheng, K.-J. McAllister, T. A. Mathiesen, Svein D. Blix, Arnoldus S. Orpin, Colin G. Costerton, J. W. 1993 http://dx.doi.org/10.1139/m93-014 http://www.nrcresearchpress.com/doi/pdf/10.1139/m93-014 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Microbiology volume 39, issue 1, page 101-108 ISSN 0008-4166 1480-3275 Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology journal-article 1993 crcansciencepubl https://doi.org/10.1139/m93-014 2024-04-09T06:56:28Z Seasonal changes in bacterial colonization of the epithelial tissue were examined in the rumen of high-arctic Svalbard reindeer. Samples of tissue were collected from eight sites in the rumen of reindeer during summer and winter and bacterial colonization was examined using scanning and transmission electron microscopy. At two of these sites, colonization by adherent bacteria was estimated to cover approximately 30% of the ruminal epithelium in specimens collected from reindeer during summer. Bacteria at these sites resembled Ruminococcus sp. and were surrounded by large amounts of glycocalyx. In winter specimens, less than 10% of the epithelial surface was covered by adherent bacteria. Those bacteria that did colonize the epithelial surface were smaller and had virtually no glycocalyx on their surface. Bacteria attached to plant cell wall material in summer samples of reindeer ingesta contained large intracellular glycogen deposits, whereas feed particle-associated bacteria in ingesta collected in winter contained no intracellular glycogen. These data demonstrate that the ruminal bacterial population responds to seasonal changes in feed intake and quality. It is yet to be determined if these bacterial changes enhance the ability of Svalbard reindeer to survive in the hostile environment of the high Arctic.Key words: ruminal bacteria, attachment, epithelium, reindeer. Article in Journal/Newspaper Arctic Svalbard svalbard reindeer Canadian Science Publishing Canadian Journal of Microbiology 39 1 101 108 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
topic |
Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology |
spellingShingle |
Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology Cheng, K.-J. McAllister, T. A. Mathiesen, Svein D. Blix, Arnoldus S. Orpin, Colin G. Costerton, J. W. Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
topic_facet |
Genetics Molecular Biology Applied Microbiology and Biotechnology General Medicine Immunology Microbiology |
description |
Seasonal changes in bacterial colonization of the epithelial tissue were examined in the rumen of high-arctic Svalbard reindeer. Samples of tissue were collected from eight sites in the rumen of reindeer during summer and winter and bacterial colonization was examined using scanning and transmission electron microscopy. At two of these sites, colonization by adherent bacteria was estimated to cover approximately 30% of the ruminal epithelium in specimens collected from reindeer during summer. Bacteria at these sites resembled Ruminococcus sp. and were surrounded by large amounts of glycocalyx. In winter specimens, less than 10% of the epithelial surface was covered by adherent bacteria. Those bacteria that did colonize the epithelial surface were smaller and had virtually no glycocalyx on their surface. Bacteria attached to plant cell wall material in summer samples of reindeer ingesta contained large intracellular glycogen deposits, whereas feed particle-associated bacteria in ingesta collected in winter contained no intracellular glycogen. These data demonstrate that the ruminal bacterial population responds to seasonal changes in feed intake and quality. It is yet to be determined if these bacterial changes enhance the ability of Svalbard reindeer to survive in the hostile environment of the high Arctic.Key words: ruminal bacteria, attachment, epithelium, reindeer. |
format |
Article in Journal/Newspaper |
author |
Cheng, K.-J. McAllister, T. A. Mathiesen, Svein D. Blix, Arnoldus S. Orpin, Colin G. Costerton, J. W. |
author_facet |
Cheng, K.-J. McAllister, T. A. Mathiesen, Svein D. Blix, Arnoldus S. Orpin, Colin G. Costerton, J. W. |
author_sort |
Cheng, K.-J. |
title |
Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
title_short |
Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
title_full |
Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
title_fullStr |
Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
title_full_unstemmed |
Seasonal changes in the adherent microflora of the rumen in high-arctic Svalbard reindeer |
title_sort |
seasonal changes in the adherent microflora of the rumen in high-arctic svalbard reindeer |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/m93-014 http://www.nrcresearchpress.com/doi/pdf/10.1139/m93-014 |
genre |
Arctic Svalbard svalbard reindeer |
genre_facet |
Arctic Svalbard svalbard reindeer |
op_source |
Canadian Journal of Microbiology volume 39, issue 1, page 101-108 ISSN 0008-4166 1480-3275 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/m93-014 |
container_title |
Canadian Journal of Microbiology |
container_volume |
39 |
container_issue |
1 |
container_start_page |
101 |
op_container_end_page |
108 |
_version_ |
1797577561289523200 |