Streptomyces Bacteria as Potential Probiotics in Aquaculture

Abstract

In response to the increased seafood demand from the ever-going human population, aquaculture has become the fastest growing animal food-producing sector. However, the indiscriminate use of antibiotics as a biological control agents for fish pathogens has led to the emergence of antibiotic resistance bacteria. Probiotics are defined as living microbial supplement that exert beneficial effects on hosts as well as improvement of environmental parameters. Probiotics have been proven to be effective in improving the growth, survival and health status of the aquatic livestock. This review aims to highlight the genus Streptomyces can be a good candidate for probiotics in aquaculture. Studies showed that the feed supplemented with Streptomyces could protect fish and shrimp from pathogens as well as increase the growth of the aquatic organisms. Furthermore, the limitations of Streptomyces as probiotics in aquaculture is also highlighted and solutions are discussed to these limitations.

Isolation, Characterization, Antioxidant, Antimicrobial and Cytotoxic Effect of Marine Actinomycete, Streptomyces Carpaticus MK-01, against Fish Pathogens

“…Hence, the isolate S. carpaticus-MK-01 from Jeju Island seawater contains antimicrobial compounds which could be used as potential source of antibiotics against fish pathogens. Further, studies are needed to assess its role as a probiotic organism as previous studies have reported the efficacy of Streptomyces as a potential probiotic source in aquaculture 33,34 . Thus the isolate MK-01 and its ethyl acetate extract containing secondary metabolites could be potential used in the aquatic feed formulation as a natural antibiotic which may reduce the risk of side effects and lower the cost of fish feeding in the aquatic food industries.…”

Prevalence and Antimicrobial Susceptibility of Vibrio parahaemolyticus Isolated from Short Mackerels (Rastrelliger brachysoma) in Malaysia

“…An alternative to antibiotics is urgently needed in order to overcome the continuous emergence of MDR bacterial strains in the environment (Tan et al, 2016). Research on alternative approaches such as the use of bacteriophage and probiotics has become possible solution to replace or reduce the use of antibiotics.…”

The Potential of Streptomyces as Biocontrol Agents against the Rice Blast Fungus, Magnaporthe oryzae (Pyricularia oryzae)

“…The members of Streptomyces are well-known for their ability to produce a variety of bioactive compounds with different bioactivities such as antibacterial (Schumacher et al, 2003; Ramesh and Mathivanan, 2009; de Lima Procópio et al, 2012; Kumar et al, 2014; Lee et al, 2014a,b; Ser et al, 2016a), antifungal (Lam, 2006), antiviral (Ara et al, 2014), immunosuppressive (Kino et al, 1987), anticancer, and antioxidant properties (Ser et al, 2015a; Tan et al, 2015, 2016). These bioactive compounds have important applications in various fields.…”