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| Hipolito,M; Catroxo,M. H. B; Martins,A. M. C. R. P. F; Melo,N.A; Pituco,E. M; Galleti,N.T.C; Ranzani-Paiva,M. J. T; Mouriño,J.L.P; Ferreira,C.M. |
| In this study thirty shrimp samples from commercial marine shrimp (L. vannamei) farms of southern region of Brazil were obtained. Hepatopancreas and shell scrapings fragments collected in these animals were processed by transmission electron microscopy using negative staining (rapid preparation), immunoelectron microscopy and immunocytochemistry (immunolabelling with colloidal gold particles) techniques. On the transmission electron microscopy a great number of white spot virus particles, ovoid or bacilliform-to-ellipsoid, measured 230-290 nm in length and 80-160 nm in diameter with intra-nuclear projections were visualized by the negative staining technique in 27 (90%) out of 30 samples examined. Using immunoelectron microscopy technique, the anti-VP 664... |
| Tipo: Journal article |
Palavras-chave: White spot syndrome virus; Negative staining; Immunoelectron microscopy; Immunocytochemistry; Marine shrimp; Litopenaeus vannamei. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200067 |
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| Uberti,Marcela Fornari; Vieira,Felipe do Nascimento; Salência,Helena Ragibo; Vieira,Genyess da Silva; Vinatea,Luis Alejandro. |
| Aiming at assessing the cryopreservation potential of Litopenaeus vannamei sperm cells, 74 spermatophores were manually extracted from the sexually mature individuals. After the toxicity test to define the cryoprotectant concentration, suspensions of spermatic cells were cryopreserved in the groups in freezing solutions comprising different cryoprotectants such as dimethyl sulfoxide (DMSO) and ethylene glycol (EG) at 10% concentration. Each treatment was divided in subgroups for storage in liquid nitrogen during 0, 30, 60 and 90 days, in triplicate. After thawing at 25ºC for 40 seconds, cell viability in the suspensions was analyzed under the microscope in eosin-nigrosin stain and flow cytometry. There were no significant differences between the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryogenics; Semen; Marine shrimp; Cell viability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000300010 |
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