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产卵季节前环境温度和激素刺激对小体鲟体外精子成熟的影响

Influence of Environmental Temperature and Hormonal Stimulation on the In Vitro Sperm Maturation in Sterlet in Advance of the Spawning Season.

作者信息

Dzyuba Viktoriya, Cosson Jacky, Papadaki Maria, Mylonas Constantinos C, Steinbach Christoph, Rodina Marek, Tučkova Vladimira, Linhart Otomar, Shelton William L, Gela David, Boryshpolets Sergii, Dzyuba Borys

机构信息

South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic.

Hellenic Centre for Marine Research, Biotechnology and Aquaculture (IMBBC), Institute of Marine Biology, Heraklion, 71500 Crete, Greece.

出版信息

Animals (Basel). 2021 May 15;11(5):1417. doi: 10.3390/ani11051417.

DOI:10.3390/ani11051417
PMID:34063418
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8155876/
Abstract

Sturgeon sperm maturation occurs outside the testes during the transit of testicular spermatozoa (TS) through the kidneys and the Wolffian ducts. A method of in vitro TS maturation in sterlet was used to investigate the effects of temperature and hormonal stimulation of spermiation on the ability of TS to complete this process. Spermatozoa motility parameters after in vitro maturation of testicular sperm, concentrations of sex steroid hormones and testis morphology were studied in three groups of sterlet: (1) after overwintering in ponds (OW), (2) adapted to spawning temperature (ST), and (3) adapted to spawning temperature with hormonal induction of spermiation (ST-HI). Blood plasma concentrations of testosterone, 11-ketotestosterone and 17,20β-dihydroxy-pregnenolone increased significantly after hormonal induction of spermiation (group ST-HI). In all groups, TS were not motile. After in vitro sperm maturation, motility was up to 60% only in group ST-HI. The data suggest that the ability of TS to be matured in vitro was not related to the environmental temperature, while hormonal stimulation of spermiation during the spawning season was an absolute requirement for optimal in vitro maturation.

摘要

鲟鱼精子的成熟过程发生在睾丸精子（TS）通过肾脏和沃尔夫管的过程中，而非在睾丸内。采用一种在小体鲟中进行体外TS成熟的方法，来研究温度和催情激素刺激对TS完成这一过程能力的影响。在三组小体鲟中研究了睾丸精子体外成熟后的精子活力参数、性类固醇激素浓度和睾丸形态：（1）池塘越冬后（OW）；（2）适应产卵温度（ST）；（3）适应产卵温度并进行激素催情（ST-HI）。激素催情后（ST-HI组），血浆中睾酮、11-酮睾酮和17,20β-二羟基孕烯醇酮的浓度显著升高。在所有组中，TS均无活力。体外精子成熟后，仅ST-HI组的精子活力高达60%。数据表明，TS体外成熟的能力与环境温度无关，而产卵季节的激素催情是体外最佳成熟的绝对必要条件。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/0dc076ff293f/animals-11-01417-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/132945c2c06c/animals-11-01417-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/41cce3c0d7b2/animals-11-01417-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/74fa042e28a9/animals-11-01417-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/d5c3713c72d5/animals-11-01417-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/145f085495d0/animals-11-01417-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/ab763058c0bd/animals-11-01417-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/0dc076ff293f/animals-11-01417-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/132945c2c06c/animals-11-01417-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/41cce3c0d7b2/animals-11-01417-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/74fa042e28a9/animals-11-01417-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/d5c3713c72d5/animals-11-01417-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/145f085495d0/animals-11-01417-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/ab763058c0bd/animals-11-01417-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e165/8155876/0dc076ff293f/animals-11-01417-g007.jpg

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Endocrine regulation of long-term enhancement of spermiation in meagre (Argyrosomus regius) with GnRHa controlled-delivery systems.促性腺激素释放激素控释系统对牙鲆精子长期排放的内分泌调控
Gen Comp Endocrinol. 2020 Oct 1;297:113549. doi: 10.1016/j.ygcen.2020.113549. Epub 2020 Jul 15.
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Fish sperm biology in relation to urogenital system structure.
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Effect of carp pituitary homogenate (CPH) and sGnRHa (Ovaprim) on northern pike (Esox lucius) spermiation stimulation and its effect on quantity and quality of sperm.鲤鱼垂体匀浆（CPH）和促性腺激素释放激素类似物（Ovaprim）对白斑狗鱼（Esox lucius）精子排放的刺激作用及其对精子数量和质量的影响。
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