Effects Elecitors on Prophenonoloxidase and Superoxide Anion Activities of Freshwater Prawn, Macrobrachium malcolmsonii

The prophenoloxidase and superoxide anion activity of haemocyte lysate supernatant (HLS) from Indian River Prawn (Macrobrachium malcolmsonii) were examined by treating HLS with various factors such as an increase in temperature from 25 to 60�C and elicitors such as ß-1,3 -1, 6-glucan, zymosan, levamisole, vitamin C, vitamin E and trypsin. The strongest PO activity was induced at 50�C followed by 45�C. The glucan, zymosan, vitamin C and vitamin E showed higher HLS prophenolase activity, whereas levamisole and trypsin showed lower HLS prophenolase activity relative to the control. In vitro elicitor zymosan showed the maximum percentage of average relative PO activity (272.0%) followed by glucan (215.0%). Levamisole showed maximum percentage elevation (33.4%) of superoxide anion, followed by glucan (25.98%), vitamin E (16.34%), vitamin C (14.87%), trypsin (9.56%) and zymosan (7.0%) respectively

Antagonistic activity of cellular components of Pseudomonas species against Aeromonas hydrophila

Antagonistic effects of Pseudomonas fluorescens, P. aeruginosa and P. putida were studied against 12 strains of Aeromonas hydrophila (Ah1–Ah12). Four different fractions of cellular component (i.e. whole cell product, heat killed whole cell product, intra cellular product and extra cellular product) of all Pseudomonas species were equally effective in reducing growth of A. hydrophila strains, as measured by the zone of inhibition in an in vitro sensitivity test and have potential action against A. hydrophila infection in fishes

Not Available

Not AvailableThe prophenoloxidase and superoxide anion activity of haemocyte lysate supernatant (HLS) from Indian River Prawn (Macrobrachium malcolmsonii) were examined by treating HLS with various factors such as an increase in temperature from 25 to 60�C and elicitors such as ß-1,3 -1, 6-glucan, zymosan, levamisole, vitamin C, vitamin E and trypsin. The strongest PO activity was induced at 50�C followed by 45�C. The glucan, zymosan, vitamin C and vitamin E showed higher HLS prophenolase activity, whereas levamisole and trypsin showed lower HLS prophenolase activity relative to the control. In vitro elicitor zymosan showed the maximum percentage of average relative PO activity (272.0%) followed by glucan (215.0%). Levamisole showed maximum percentage elevation (33.4%) of superoxide anion, followed by glucan (25.98%), vitamin E (16.34%), vitamin C (14.87%), trypsin (9.56%) and zymosan (7.0%) respectively.Not Availabl

Not Available

Not AvailableThe prophenoloxidase and superoxide anion activity of haemocyte lysate supernatant (HLS) from Indian River Prawn (Macrobrachium malcolmsonii) were examined by treating HLS with various factors such as an increase in temperature from 25 to 60�C and elicitors such as ß-1,3 -1, 6-glucan, zymosan, levamisole, vitamin C, vitamin E and trypsin. The strongest PO activity was induced at 50�C followed by 45�C. The glucan, zymosan, vitamin C and vitamin E showed higher HLS prophenolase activity, whereas levamisole and trypsin showed lower HLS prophenolase activity relative to the control. In vitro elicitor zymosan showed the maximum percentage of average relative PO activity (272.0%) followed by glucan (215.0%). Levamisole showed maximum percentage elevation (33.4%) of superoxide anion, followed by glucan (25.98%), vitamin E (16.34%), vitamin C (14.87%), trypsin (9.56%) and zymosan (7.0%) respectively.Not Availabl

Not Available

Not AvailableAntagonistic effects of Pseudomonas fluorescens, P. aeruginosa and P. putida were studied against 12 strains of Aeromonas hydrophila (Ah1–Ah12). Four different fractions of cellular component (i.e. whole cell product, heat killed whole cell product, intra cellular product and extra cellular product) of all Pseudomonas species were equally effective in reducing growth of A. hydrophila strains, as measured by the zone of inhibition in an in vitro sensitivity test and have potential action against A. hydrophila infection in fishes.Not Availabl

Not Available

Not AvailableAntagonistic effects of Pseudomonas fluorescens, P. aeruginosa and P. putida were studied against 12 strains of Aeromonas hydrophila (Ah1–Ah12). Four different fractions of cellular component (i.e. whole cell product, heat killed whole cell product, intra cellular product and extra cellular product) of all Pseudomonas species were equally effective in reducing growth of A. hydrophila strains, as measured by the zone of inhibition in an in vitro sensitivity test and have potential action against A. hydrophila infection in fishes.Not Availabl