Assessment of hemolytic activity, enzyme production and bacteriocin characterization of Bacillus subtilis LR1 isolated from the gastrointestinal tract of fish

Banerjee, Goutam; Nandi, Ankita; Ray, Arun Kumar

doi:10.1007/s00203-016-1283-8

Cited by 73 publications

(36 citation statements)

References 36 publications

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“…However, this increased nutrient digestibility are due to the elevated level of digestive enzymes (protease, amylase, cellulose, phytase, etc.) produced by the probiotic altered gut-associated microbial community in the host (Banerjee, Nandi, & Ray, 2017;Burr & Gatlin, 2005;Ghosh, Banerjee, Moon, Khan, & Dutta, 2017). For example, few bacteria (viz.…”

Section: Improvement In Nutrient Utilizationmentioning

confidence: 99%

Recent studies on probiotics as beneficial mediator in aquaculture: a review

Hasan

Banerjee

2020

JoBAZ

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Background: The diseases in fish and other economic aquatic species is a great concern, and every year it causes a huge loss in aquaculture sectors. The use of probiotics might be a good option to reduce the disease risk and to enhance the productivity. Methods: We have gathered information from various important research and review articles related to fish diseases, probiotics, and gut microbial community. We have tried our level best to represent the up-to-date information in a concise manner. Results: In this present review, we have demonstrated the various beneficial aspects of probiotics in aquaculture sectors. Probiotics are considered as novel functional agents that have potential implications in influencing the gut microbiota of any aquatic organism. Researchers have already documented that probiotics play a wide spectrum functions (such as decrease diseases and stress, enhance immunity, modulate gut microbiota, helps in nutrition, improve water quality, etc.) in host body. Furthermore, the beneficial effects of probiotics contribute to increase feed value and growth of the animal, and improve spawning and hatching rate in aquaculture system. Here, we have discussed each and every functions of probiotics and tried to correlate with the previous knowledge. Conclusion: The reports regarding the efficacy of probiotics and its detailed mechanism of action are scarce. Till date, several probiotics have been reported; however, their commercial use has not been implicated. Most of the studies are based on laboratory environment and thus the potentiality may vary when these probiotics will be used in natural environments (pond and lakes).

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Section: Improvement In Nutrient Utilizationmentioning

confidence: 99%

Recent studies on probiotics as beneficial mediator in aquaculture: a review

Hasan

Banerjee

2020

JoBAZ

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“…Disease in aquatic organisms, including fish, is a major threat to farmers and causes massive losses in production. Fish are susceptible to wide varieties of lethal diseases caused by different types of bacterial, fungal, viral, and parasitic agents (Taoka et al ; Phani Kumar and Sree Ramulu ; Subharanjani et al ; Banerjee et al ; Nandi et al ). According to FAO (), every year several countries, including India, face major losses in aquaculture production mainly due to bacterial diseases.…”

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confidence: 99%

Identification and Pathogenicity of Pseudomonas aeruginosa DJ1990 on Tail and Fin Rot Disease in Spotted Snakehead

Saikia

Chattopadhyay

Banerjee

et al. 2017

J World Aquaculture Soc

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Tail and fin rot disease (TFRD) is a big issue in the production of spotted snakehead, Channa punctata Bloch. The aims of the present study were to isolate and identify the bacterial pathogen causing TFRD, to detect histopathological changes in tissues (fin, tail, liver, and kidney), and to ascertain the antibiotic sensitivity pattern of the isolate. Out of six bacterial isolates, only the isolate DJ1990 was found to be the causal candidate of TFRD in C. punctata. Identical histopathological changes were detected in tail, fin, liver, and kidney under light and scanning electron microscope in both collected diseased fish and artificially infected fish. The isolate was identified as Pseudomonas aeruginosa strain DJ1990 (National Center for Biotechnology Information Ace. No. KX709967) based on the biochemical characterization tests and 16S rDNA sequence‐based phylogeny analysis. Artificial challenge test demonstrated that the strain DJ1990 was highly virulent (100% mortality at 48 h of postinjection period at the concentration of 1.5 × 107 CFU/g of body weight) for C. punctata. The isolate exhibited sensitivity to the broad‐spectrum antibiotics but was resistant against aztreonum. To the best of our knowledge, this is the first report of P. aeruginosa as a TFRD‐causing candidate in C. punctata.

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“…Akhter et al indicate that probiotics are microorganisms that are administered orally in a sufficient amount to alter the microbiota (by implantation or colonization) of the specific host and lead to benefits for the host's health [4]. On the other hand, Banerjee et al define probiotics as living microorganisms that confer beneficial effects to the host (improves immunity, helps digestion, protects against pathogens, improves water quality, and promotes growth and reproduction), and can be used as an alternative to antibiotics [5] (Figure 1). Probiotics include Grampositive, Gram-negative bacteria, and many other organisms such as yeasts, bacteriophage, and single-celled algae [6].…”

Section: Updated Definition Of Probiotics In Aquaculturementioning

confidence: 99%

Probiotic Bacteria as an Healthy Alternative for Fish Aquaculture

Sayes¹,

Leyton²,

Riquelme³

2018

Antibiotic Use in Animals

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One of the problems of the aquaculture industry is the presence of pathogenic microorganisms whose proliferation is enhanced when the healthy quality of the culture systems do not meet comply with physical-chemical-biological parameters. In order to improve these problems, less aggressive alternatives to the environment have been sought. This is why probiotic bacteria are proposed as an alternative to the same systems where they will be applied, since they generate greater interest in not presenting a threat to the ecosystem, favor survival, improve the immune system of organisms and have antibacterial properties against pathogenic bacteria. This chapter reviews current research related to the search for marine probiotics for application in the aquaculture industry. Additionally, we deliver results from our work related to the research and application of probiotics. The reported studies demonstrate the positive effects of marine bacteria for their aquaculture application. The evidences found in our work allow us to conclude that larval survival is favored by the application of probiotics in the use of vectors such as rotifers, artemia and biofilms. However, depending on the species of interest, it is necessary to study the market for the biotechnological application of probiotics, to evaluate the feasibility of its production on a larger scale and its commercial feasibility.

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Assessment of hemolytic activity, enzyme production and bacteriocin characterization of Bacillus subtilis LR1 isolated from the gastrointestinal tract of fish

Cited by 73 publications

References 36 publications

Recent studies on probiotics as beneficial mediator in aquaculture: a review

Recent studies on probiotics as beneficial mediator in aquaculture: a review

Identification and Pathogenicity of Pseudomonas aeruginosa DJ1990 on Tail and Fin Rot Disease in Spotted Snakehead

Probiotic Bacteria as an Healthy Alternative for Fish Aquaculture

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