Biotechnology and Bioinformatics (1+1)

6.1.5.4 . Bioremediators as disease controlling agents

Most probiotics proposed as biological control agents in aquaculture belong to the Lactic Acid Bacteria (Lactobacillus, Cornybacterium, etc.), Vibrio (V. alginolyticus), Bacillus, and Pseudomonas.

Beneficial microbes, such as non-pathogenic isolates of V. alginolyticus can be inoculated into shrimp culture systems to suppress the pathogenic vibrios like V. harveyi, V. parahaemolyticus and V. splendens and reduce the opportunistic invasion of these pathogens in shrimps.

The role of bioremediators is presented in Table 1.

Table.1. Bioremediators and their Role

Bacillus sp.	Mineralization and breakage of proteins
Nitrosomonas sp.	Oxidation of ammonia
Nitrobacter sp	Oxidation of nitrites
Aerobacter sp.	Reduction of organic matter
Cellulomonas sp.	Breakage of plant material