2021
DOI: 10.1016/j.cryobiol.2020.11.008
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Major challenges in cryopreservation of sea urchin eggs

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Cited by 12 publications
(7 citation statements)
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“…For E. esculentus, fertility was retained after activation and storage in sea water at 18 °C. This disagrees with what we have known so far about chilling injuries in sea urchins [ 41 , 42 ], and whether chilling injury is dependent on the composition of the eggs, which may vary depending on the season or the geographical area, should be explored. This has been the first attempt to study chilling injuries across five different species of sea urchins and no long-term developmental studies have been conducted to assess the complete effect.…”
Section: Discussioncontrasting
confidence: 68%
“…For E. esculentus, fertility was retained after activation and storage in sea water at 18 °C. This disagrees with what we have known so far about chilling injuries in sea urchins [ 41 , 42 ], and whether chilling injury is dependent on the composition of the eggs, which may vary depending on the season or the geographical area, should be explored. This has been the first attempt to study chilling injuries across five different species of sea urchins and no long-term developmental studies have been conducted to assess the complete effect.…”
Section: Discussioncontrasting
confidence: 68%
“…Although some have managed to document growth of fertilized eggs after cryopreservation [56], no successes have been documented for oocyte cryopreservation in urchins, or other marine organisms [57,14], and no survival was achieved while attempting to cryopreserve fertilized eggs in T. gratilla in the present study. Eggs are inherently more difficult to cryopreserve because of their membranes’ poor permeability to water and cryoprotective solutes, both of which are indispensable to successful cryopreservation [48].…”
Section: Discussionmentioning
confidence: 78%
“…Cryopreservation has many advantages, such as establishment of biobanks; providing year-round access to high quality material; breaking through geographic isolation; realizing remote hybridization; and protecting endangered species (Paredes, 2015;Paredes, 2016;Paredes et al, 2019). Compared with germplasm resources such as eggs and embryos, spermatozoa are easier to use in cryopreservation research due to their simpler structure (Tsai and Lin, 2012;Paredes et al, 2019;Campos et al, 2021). Generally, the sperm cryopreservation process includes sperm collection, quality evaluation, cryo-diluent (extender and cryoprotectant agent (CPA)) preparation, mixing of cryo-diluent with semen, cooling, storage, thawing, and sperm quality evaluation after thawing.…”
Section: Introductionmentioning
confidence: 99%