2000
DOI: 10.3354/dao040085
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The haemocytic origin of lymphoid organ spheroid cells in the penaeid prawn Penaeus monodon

Abstract: Studies on lymphoid organ spheroid (LOS) cells of Penaeus rnonodon were undertaken. Phenoloxidase and peroxidase assays showed that LOS cells have characteristics simllar to semi-granular and, in particular, large granular haemocytes. The mean percentage of LOS cells positive for phenoloxidase and peroxidase was 85 + 23 and 82 * 23%, respectively. There was no significant difference between the sites of phenoloxidase and peroxidase activity in LOS cells ( t = 1.617, df = 29, p > 0.05). The relative sectional a… Show more

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Cited by 73 publications
(91 citation statements)
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“…GAV was detected in cells lining the sub-gastric artery and tubule lumen within the lymphoid organ. As haemolymph first enters the lymphoid organ via the subgastric artery and must pass through the thin layer of endothelial cells lining the lumen before entering the stromal matrix of the tubules (Oka 1969, Martin et al 1987, Anggraeni & Owens 2000, this may be indicative of an early stage of infection in the lymphoid organ. Tang et al (2002) also reported no loss of normal tubule structure in GAV-infected Litopenaeus vannamei which, like P. esculentus, is not a natural host of GAV.…”
Section: Discussionmentioning
confidence: 99%
“…GAV was detected in cells lining the sub-gastric artery and tubule lumen within the lymphoid organ. As haemolymph first enters the lymphoid organ via the subgastric artery and must pass through the thin layer of endothelial cells lining the lumen before entering the stromal matrix of the tubules (Oka 1969, Martin et al 1987, Anggraeni & Owens 2000, this may be indicative of an early stage of infection in the lymphoid organ. Tang et al (2002) also reported no loss of normal tubule structure in GAV-infected Litopenaeus vannamei which, like P. esculentus, is not a natural host of GAV.…”
Section: Discussionmentioning
confidence: 99%
“…Spheroid development has been described in Taura syndrome virus infections (Hasson et al 1999a,b) and is often associated with other viral infections (Anggraeni & Owens 2000).…”
Section: 3mentioning
confidence: 99%
“…The results obtained here suggest that the TUNEL assay may also be an indicator of apoptosis in crustaceans. Indeed, Anggraeni & Owens (2000), in another study, have used TUNEL-positive staining as evidence for apoptosis in lymphoid organ cells of Penaeus monodon infected with a virus.…”
Section: Abstract: Apoptosis · White Spot Syndrome Virus · Wssv · Pementioning
confidence: 99%