Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii
Abstract Sturgeon spermatozoa are unique for their sustained motility. We investigated the relative importance of bioenergetic pathways in the energy supply of Siberian sturgeon Acipenser baerii spermatozoa during motile and immotile states. Spermatozoon motility and oxygen consumption rate (OCR) we...
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crwiley:10.1111/jfb.14382 2024-10-13T14:00:49+00:00 Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii Rahi, Deepali Dzyuba, Borys Xin, Miaomiao Cheng, Yu Dzyuba, Viktoriya Ministerstvo Školství, Mládeže a Tělovýchovy Jihočeská Univerzita v Českých Budějovicích Ministerstvo Školství, Mládeže a Tělovýchovy 2020 http://dx.doi.org/10.1111/jfb.14382 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.14382 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.14382 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jfb.14382 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 97, issue 2, page 435-443 ISSN 0022-1112 1095-8649 journal-article 2020 crwiley https://doi.org/10.1111/jfb.14382 2024-09-17T04:44:59Z Abstract Sturgeon spermatozoa are unique for their sustained motility. We investigated the relative importance of bioenergetic pathways in the energy supply of Siberian sturgeon Acipenser baerii spermatozoa during motile and immotile states. Spermatozoon motility and oxygen consumption rate (OCR) were analysed following exposure to inhibitors of oxidative phosphorylation (sodium azide, NaN 3 ), glycolysis (2‐deoxy‐D‐glucose, DOG) and β‐oxidation of fatty acids (sodium fluoride, NaF), and to an uncoupler of oxidative phosphorylation (carbonyl cyanide m ‐chlorophenyl hydrazine, CCCP). No significant difference in curvilinear velocity was observed after addition of these reagents to activation medium (AM) or nonactivation medium (NAM) for incubation. Incubation of spermatozoa in NAM containing CCCP or NaN 3 resulted in significantly decreased motility duration compared to controls. The OCR of sturgeon spermatozoa in AM (11.9 ± 1.4 nmol O 2 min −1 (10 9 spz) −1 ) was significantly higher than in NAM (8.2 ± 1.5 nmol O 2 min −1 (10 9 spz) −1 ). The OCR significantly declined with addition of NaN 3 to AM and NAM. No significant difference in motility parameters or OCR was observed with NaF or DOG. These results suggest active oxidative phosphorylation in both immotile and motile spermatozoa. Nevertheless, mitochondrial respiration occurring during motility is not sufficient to meet the high energy demands, and the energy required for sustained motility of Siberian sturgeon spermatozoa is derived from adenosine triphosphate accumulated during the quiescent state. Article in Journal/Newspaper Acipenser baerii Siberian sturgeon Wiley Online Library Journal of Fish Biology 97 2 435 443 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Sturgeon spermatozoa are unique for their sustained motility. We investigated the relative importance of bioenergetic pathways in the energy supply of Siberian sturgeon Acipenser baerii spermatozoa during motile and immotile states. Spermatozoon motility and oxygen consumption rate (OCR) were analysed following exposure to inhibitors of oxidative phosphorylation (sodium azide, NaN 3 ), glycolysis (2‐deoxy‐D‐glucose, DOG) and β‐oxidation of fatty acids (sodium fluoride, NaF), and to an uncoupler of oxidative phosphorylation (carbonyl cyanide m ‐chlorophenyl hydrazine, CCCP). No significant difference in curvilinear velocity was observed after addition of these reagents to activation medium (AM) or nonactivation medium (NAM) for incubation. Incubation of spermatozoa in NAM containing CCCP or NaN 3 resulted in significantly decreased motility duration compared to controls. The OCR of sturgeon spermatozoa in AM (11.9 ± 1.4 nmol O 2 min −1 (10 9 spz) −1 ) was significantly higher than in NAM (8.2 ± 1.5 nmol O 2 min −1 (10 9 spz) −1 ). The OCR significantly declined with addition of NaN 3 to AM and NAM. No significant difference in motility parameters or OCR was observed with NaF or DOG. These results suggest active oxidative phosphorylation in both immotile and motile spermatozoa. Nevertheless, mitochondrial respiration occurring during motility is not sufficient to meet the high energy demands, and the energy required for sustained motility of Siberian sturgeon spermatozoa is derived from adenosine triphosphate accumulated during the quiescent state. |
author2 |
Ministerstvo Školství, Mládeže a Tělovýchovy Jihočeská Univerzita v Českých Budějovicích Ministerstvo Školství, Mládeže a Tělovýchovy |
format |
Article in Journal/Newspaper |
author |
Rahi, Deepali Dzyuba, Borys Xin, Miaomiao Cheng, Yu Dzyuba, Viktoriya |
spellingShingle |
Rahi, Deepali Dzyuba, Borys Xin, Miaomiao Cheng, Yu Dzyuba, Viktoriya Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
author_facet |
Rahi, Deepali Dzyuba, Borys Xin, Miaomiao Cheng, Yu Dzyuba, Viktoriya |
author_sort |
Rahi, Deepali |
title |
Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
title_short |
Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
title_full |
Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
title_fullStr |
Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
title_full_unstemmed |
Energy pathways associated with sustained spermatozoon motility in the endangered Siberian sturgeon Acipenser baerii |
title_sort |
energy pathways associated with sustained spermatozoon motility in the endangered siberian sturgeon acipenser baerii |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/jfb.14382 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.14382 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.14382 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jfb.14382 |
genre |
Acipenser baerii Siberian sturgeon |
genre_facet |
Acipenser baerii Siberian sturgeon |
op_source |
Journal of Fish Biology volume 97, issue 2, page 435-443 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfb.14382 |
container_title |
Journal of Fish Biology |
container_volume |
97 |
container_issue |
2 |
container_start_page |
435 |
op_container_end_page |
443 |
_version_ |
1812808459019616256 |