Effects of cryopreservation on the survival rate of the seven-band grouper (Epinephelus septemfasciatus) embryos

文献类型： 外文期刊

第一作者： Tian, Yongsheng

作者： Tian, Yongsheng;Jiang, Jing;Song, Lini;Chen, Zhangfan;Wang, Na;Chen, Songlin;Jiang, Jing;Song, Lini;Zhai, Jieming;Liu, Jiangchun

作者机构：

关键词： Cryopreservation;Vitrification;Epinephelus septemfasciatus;Embryos;Hatchability

期刊名称：CRYOBIOLOGY （ 影响因子：2.487； 五年影响因子：2.641 ）

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收录情况： SCI

摘要： The effects of cryopreservation and the vitrification solution on the embryo hatchability of the seven-band grouper Epinephelus septemfasciatus were evaluated in this study. Six small molecule cryoprotectants (PG, MeOH, Gly, DMF, DMSO and EG) and four macromolecular cryoprotectants (glucose, fructose, sucrose and trehalose) were used to determine the embryo toxicity levels. Results showed that the embryo survival rate was higher when the PM (24% PG + 16% MeOH):Gly ratios were 3:1 and 4:1. Further experiments showed that the embryo survival rates in PMG3S (35% PMG3 + 5% sucrose) and PMG3T (35% PMG3 + 5% trehalose) were relatively higher, which are 29.24 +/- 10.81% and 27.01 +/- 3.39%, respectively. When treated with PMG3S and PMG3T by using 5-step method, embryos at somite stage and tail-bud stage shrank in the first 6 min and gradually recovered in volume to the original. This indicated the successful permeation of the vitrification solutions into cells. Then, embryos at the embryoid body formation stage, the somite stage and the tail-bud stage were cryopreserved with PMG3S and PMG3T. In total, 82 floating embryos were obtained, 14 of which developed further, with 8 embryos at the tail-bud stage developing to the heartbeat stage, 4 embryos at the body formation stage development to the somite stage, and 2 embryos at the somite stage hatched to larval fish. (C) 2015 Elsevier Inc. All rights reserved.

分类号： Q1

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