Study on lysozyme activity in some fish species

Lie, Ø.; Evensen, Øystein; Sorensen, Arleen; Frøysadal, E

doi:10.3354/dao006001

Cited by 199 publications

(112 citation statements)

References 14 publications

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“…In fish, lysozyme is recognized to be an opsonin and activates the complement system and phagocytes (Grinde, 1989). Thus, it plays an important role in the host defense mechanisms against infectious diseases (Lundblad et al, 1979;Lindsay, 1986;Lie et al, 1989).The results of this study revealed a significant increase in lysozyme activity in mustard extract group than the other groups. Also, that could attributed to the efficiency of mustard extract as immuno-modulator to resist the dramatically effect of BaP.…”

Section: Discussionsupporting

confidence: 52%

Effect of Black Mustard (Brassica nigra) on the Interaction between Immune and Biotransformation Systems of Nile Tilapia (Oreochromis niloticus) Exposed to Benzo-a-Pyrene

Abbas¹,

Awad²,

Abdel-Rahm³

2015

J. of Fisheries and Aquatic Science

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Aquatic pollutants are responsible form any alterations in fish health. Our study was designed to examine the efficacy of dietary supplement of black mustard seed, Brassica nigra (30% crude and 1% alcoholic extract) on enhancement the immunity and detoxification response of Nile tilapia, Oreochromis niloticus after exposed to a hydrocarbon pollutant; Benzo-a-Pyrene (BaP). Fish were divided into 3 groups before being fed for 28 days with crude black mustard seeds,1% alcoholic extract and un-supplemented commercial diet as the control. At the end of experiment, fish were exposed to 1 mg LG 1 of BaP for 24 h. Humoral immune parameters (lysozyme activity, antiprotease activity and total protein),ethoxyresorufin-o-deethylase (EROD) and hepatic cytochrome P450 1A1 content (CYP1A1) were investigated. Results recorded high significant difference (p<0.05) of antiprotease and total protein values in group fed with 1% extract followed by crude seeds as compared with control. The highest significant lysozyme activity (p<0.05) was recorded also in group fed with 1% extract as compared with other groups. On the other hand the extract group revealed a significant decrease in EROD (p<0.05) and CYP1A1 content compared to other groups. Which lowering the possible toxic effect of bio-transformed metabolic intermediate compounds.While the EROD activity and CYP1A1 content in group fed with the crude seeds showed increase over the control one. Therefore, the results suggest using of black mustard extract as a dietary supplement to increase the immune function and enhance the detoxification process of pollutants and hence, reduce the harmful effect of aquatic pollutants on Nile tilapia health.

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Section: Discussionsupporting

confidence: 52%

Effect of Black Mustard (Brassica nigra) on the Interaction between Immune and Biotransformation Systems of Nile Tilapia (Oreochromis niloticus) Exposed to Benzo-a-Pyrene

Abbas¹,

Awad²,

Abdel-Rahm³

2015

J. of Fisheries and Aquatic Science

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“…One of the best-known of these antimicrobial substances is lysozyme, an enzyme that hydrolyses the bacterial cell wall mucopeptide N-acetylmuramic acid -N-acetylglucosamine linkage. This enzyme is ubiquitous in the living world and has been reported to occur in the kidney and digestive tissues of rainbow trout Oncorhynchus mykiss (Lindsay 1986, Grinde et al 1988, Grinde 1989, in the kidney tissues of Atlantic salmon Salmo salar (Lie et al 1989), and in the eggs of several salmonid fish (Yousif et al 1991).…”

Section: Introductionmentioning

confidence: 99%

In vitro evidence for the antibacterial role of lysozyme in salmonid eggs

Yousif¹,

Albright²,

Evelyn³

1994

Dis. Aquat. Org.

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ABSTRACT-The yolk material of coho salmon Oncorhynchus lusutch eggs contains at least 1 naturally occurring antibactenal factor -lysozyme. The antibacterial properties of this lysozyme were studied with selected bacterial flsh pathogens. It was found to be rapidly bactericidal to Aeromonas hydrophila, Aeromonas salmonic~da, and Carnobacterium piscicola at a concentration of 700 pg ml-l, a concentration approximately one-third of that found in the yolk of most salmonid eggs. However, the lysis that ~t caused with the test bacterium Micrococcus lysodeikticus did not occur with the foregoing fish pathogens. The kidney disease bacterium Renibacterium salmoninarum was not killed when incubated with as much as 1900 pg ml-' of the enzyme for 90 min. The data presented indicate that the antibacterial role of lysozyme should not be equated merely with its ability to lyse microorganisms, and that lysozyme has a role in preventing the mother to progeny (vertical) transmission of some bacterial fish pathogens. Its failure to kill R. salmoninarum helps to explain why this organism is readily vertically transmitted.

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“…Lie et al (1989) noted that the immune response is sensitive to changes in temperature. Muona and Soivio (1992) suggested that water temperature affected lysozyme activity in Atlantic salmon and sea trout.…”

Section: Discussionmentioning

confidence: 99%

Physiological responses of Chinese longsnout catfish to water temperature

Han

Xie

Zhu

et al. 2011

Chin. J. Ocean. Limnol.

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We evaluated the effect of water temperature on the growth and physiology of the Chinese longsnout catfish (Leiocassis longirostris Günther). The fish were reared at four temperatures (20, 25, 30, and 35°C) and sampled on days 7, 20, and 30. We measured plasma levels of insulin, free thyroxine (FT 4 ), free 3,5,3′-triiodothyronine (FT 3 ), lysozyme and leukocyte phagocytic activity. The optimum water temperature for growth was 27.7°C. The plasma levels of insulin and FT 4 declined significantly (P<0.05) on day 30 at temperatures above 20°C. Lysozyme activity was significantly (P<0.05) lower at 25°C than at other temperatures. We conclude that final weight, insulin, FT 4 , and lysozyme were significantly affected by water temperature.

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Study on lysozyme activity in some fish species

Cited by 199 publications

References 14 publications

Effect of Black Mustard (Brassica nigra) on the Interaction between Immune and Biotransformation Systems of Nile Tilapia (Oreochromis niloticus) Exposed to Benzo-a-Pyrene

Effect of Black Mustard (Brassica nigra) on the Interaction between Immune and Biotransformation Systems of Nile Tilapia (Oreochromis niloticus) Exposed to Benzo-a-Pyrene

In vitro evidence for the antibacterial role of lysozyme in salmonid eggs

Physiological responses of Chinese longsnout catfish to water temperature

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