Longitudinal study of winter mortality disease in Sydney rock oysters Saccostrea glomerata
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چکیده
منابع مشابه
The role of phenoloxidase suppression in QX disease outbreaks among Sydney rock oysters (Saccostrea glomerata)
The paramyxean protozoan, Marteilia sydneyi, is the etiological agent of QX disease in Sydney rock oysters (Saccostrea glomerata). QX disease affects the farming of oysters in Queensland and on five rivers in New South Wales (NSW), Australia. Disease outbreaks occur during summer months (January to April) and are associated with high mortality rates (up to 98%), which limit the growing out peri...
متن کاملPhenoloxidase and QX disease resistance in Sydney rock oysters (Saccostrea glomerata).
QX is a fatal disease in Sydney rock oysters (Saccostrea glomerata) that results from infection by the protistan parasite, Marteilia sydneyi. Since 1997, the New South Wales Fisheries Service has bred S. glomerata for resistance to QX disease. The current study shows that the QX resistance breeding program has selected oysters with enhanced phenoloxidase (PO) activities. The third generation of...
متن کاملThe effect of growing level and growing method on winter mortality, Mikrocytos roughleyi, in diploid and triploid Sydney rock oysters, Saccostrea glomerata
The effect of growing height on mortality of Sydney rock oysters, Saccostrea glomerata, caused by Australian winter mortality Mikrocytos roughleyi was evaluated on a commercial intertidal growing lease on the Georges River, NSW, Australia. The mortality level of 35.1"8.4% at normal growing height, fell to 9.3"0.9% when oysters were cultured 300-mm higher, and increased to 52.4"0.2% at 300-mm lo...
متن کاملThe effect of low salinity on phenoloxidase activity in the Sydney rock oyster, Saccostrea glomerata
This study tested the effects of low salinity on phenoloxidase activity in Sydney rock oysters (Saccostrea glomerata). Phenoloxidase is a key component of the immune system in S. glomerata. Previously, we have shown that decreased phenoloxidase activity is associated with susceptibility to fatal QX disease. In the current study, laboratory-based experiments were used to identify factors that co...
متن کاملTranscriptome Analysis of the Sydney Rock Oyster, Saccostrea glomerata: Insights into Molluscan Immunity
BACKGROUND Oysters have important ecological functions in their natural environment, acting as global carbon sinks and improving water quality by removing excess nutrients from the water column. During their life-time oysters are exposed to a variety of pathogens that can cause severe mortality in a range of oyster species. Environmental stressors encountered in their habitat can increase the s...
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ژورنال
عنوان ژورنال: Diseases of Aquatic Organisms
سال: 2014
ISSN: 0177-5103,1616-1580
DOI: 10.3354/dao02629