Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation
The effects of starvation on ultrastructure ofdigestive gland cells were studied in furcilia larvae of Antarctickrill (Euphausia superba: hereafter krill). Under laboratoryconditions, larvae were starved for 0, 5, 10, 15, 20and 25 days, and their R-cells were investigated by transmissionelectron mic...
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ftunivtasecite:oai:ecite.utas.edu.au:54901 2023-05-15T13:40:51+02:00 Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation Yoshida, T Kawaguchi, S Meyer, B Virtue, P Penschow, J Nash, G 2009 application/pdf http://www.springerlink.com https://doi.org/10.1007/s00300-008-0569-y http://ecite.utas.edu.au/54901 en eng Springer http://ecite.utas.edu.au/54901/2/Toshi and Patti[1].pdf http://dx.doi.org/10.1007/s00300-008-0569-y Yoshida, T and Kawaguchi, S and Meyer, B and Virtue, P and Penschow, J and Nash, G, Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation, Polar Biology, 32, (3) pp. 503-507. ISSN 0722-4060 (2009) [Refereed Article] http://ecite.utas.edu.au/54901 Biological Sciences Zoology Invertebrate Biology Refereed Article PeerReviewed 2009 ftunivtasecite https://doi.org/10.1007/s00300-008-0569-y 2019-12-13T21:27:40Z The effects of starvation on ultrastructure ofdigestive gland cells were studied in furcilia larvae of Antarctickrill (Euphausia superba: hereafter krill). Under laboratoryconditions, larvae were starved for 0, 5, 10, 15, 20and 25 days, and their R-cells were investigated by transmissionelectron microscope. R-cells are thought to play arole in the storage and absorption of nutrients. In fed larvae,numerous mitochondria scattered homogenously, anddensely packed microvilli were observed on the apical surfaceof R-cells. After 5 days of starvation, mitochondriawere swollen and were found concentrated in the apicalregion in R-cells. A decrease in cell volume and an increasein thickness of the basal lamina with many irregular infoldingswere observed after 1015 days of starvation. Lipiddroplets were rarely found in the R-cells regardless ofwhether larvae had been fed or starved suggesting aninability to store lipid. Without the ability to store energy inthe form of lipid, survival would be dependant on sourcingcontinuous food until maturation. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology eCite UTAS (University of Tasmania) Antarctic Polar Biology 32 3 503 507 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Zoology Invertebrate Biology |
spellingShingle |
Biological Sciences Zoology Invertebrate Biology Yoshida, T Kawaguchi, S Meyer, B Virtue, P Penschow, J Nash, G Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
topic_facet |
Biological Sciences Zoology Invertebrate Biology |
description |
The effects of starvation on ultrastructure ofdigestive gland cells were studied in furcilia larvae of Antarctickrill (Euphausia superba: hereafter krill). Under laboratoryconditions, larvae were starved for 0, 5, 10, 15, 20and 25 days, and their R-cells were investigated by transmissionelectron microscope. R-cells are thought to play arole in the storage and absorption of nutrients. In fed larvae,numerous mitochondria scattered homogenously, anddensely packed microvilli were observed on the apical surfaceof R-cells. After 5 days of starvation, mitochondriawere swollen and were found concentrated in the apicalregion in R-cells. A decrease in cell volume and an increasein thickness of the basal lamina with many irregular infoldingswere observed after 1015 days of starvation. Lipiddroplets were rarely found in the R-cells regardless ofwhether larvae had been fed or starved suggesting aninability to store lipid. Without the ability to store energy inthe form of lipid, survival would be dependant on sourcingcontinuous food until maturation. |
format |
Article in Journal/Newspaper |
author |
Yoshida, T Kawaguchi, S Meyer, B Virtue, P Penschow, J Nash, G |
author_facet |
Yoshida, T Kawaguchi, S Meyer, B Virtue, P Penschow, J Nash, G |
author_sort |
Yoshida, T |
title |
Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
title_short |
Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
title_full |
Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
title_fullStr |
Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
title_full_unstemmed |
Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation |
title_sort |
structural changes in the digestive glands of larval antarctic krill (euphausia superba) during starvation |
publisher |
Springer |
publishDate |
2009 |
url |
http://www.springerlink.com https://doi.org/10.1007/s00300-008-0569-y http://ecite.utas.edu.au/54901 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology |
op_relation |
http://ecite.utas.edu.au/54901/2/Toshi and Patti[1].pdf http://dx.doi.org/10.1007/s00300-008-0569-y Yoshida, T and Kawaguchi, S and Meyer, B and Virtue, P and Penschow, J and Nash, G, Structural changes in the digestive glands of larval Antarctic krill (Euphausia superba) during starvation, Polar Biology, 32, (3) pp. 503-507. ISSN 0722-4060 (2009) [Refereed Article] http://ecite.utas.edu.au/54901 |
op_doi |
https://doi.org/10.1007/s00300-008-0569-y |
container_title |
Polar Biology |
container_volume |
32 |
container_issue |
3 |
container_start_page |
503 |
op_container_end_page |
507 |
_version_ |
1766141569690238976 |