Facilitating harmful algae removal in fresh water via joint effects of multi-species algicidal bacteria

Algae control in oligotrophic surface water under the joint effect of nutritional competition and microbial algae-lytic substances

“…34 In particular, bacilysin from V4 was reported to have specific bactericidal activity against harmful algal bloom species. 33 It has been reported that Bacillus has the highest relative abundance detected in the multi-species algicidal bacteria algae control system, 19 which proves that Bacillus exhibits an absolute competitive advantage in the interaction of bacteria and algae. It is the most potential algae-lytic bacteria.…”

“…17 Biological methods, especially inhibition of harmful algae by algicidal bacteria, are efficient, low-cost and environmentally friendly. [19][20][21][22] Algicidal bacteria mainly inhibit algal cells by producing and releasing active substances, such as peptides, proteins, alkaloids, biosurfactants, and other active compounds. [19][20][21][22] However, previous studies are limited to testing primarily on a labscale, and their long-term ecological impacts have not been assessed.…”

“…[19][20][21][22] Algicidal bacteria mainly inhibit algal cells by producing and releasing active substances, such as peptides, proteins, alkaloids, biosurfactants, and other active compounds. [19][20][21][22] However, previous studies are limited to testing primarily on a labscale, and their long-term ecological impacts have not been assessed. Further investigation is essential to obtain a fieldscale evaluation.…”

“…Fortunately, microbial immobilization technology can immobilize functional bacteria on biocompatible materials, promote colonization and growth, and enhance relative activity. 19,23 Appropriate solid carbon sources act as electron donors and provide shelter for the growth of microorganisms, which are essential for biocontrol methods applied in flowing water. Bio-derived polymeric solid carbon sources, such as polyhydroxyalkanoate (PHA), polybutylene succinate (PBS), polycaprolactone (PCL), have excellent biodegradability and biocompatibility.…”

Different Algicidal Modes of the Two Bacteria Aeromonas bestiarum HYD0802-MK36 and Pseudomonas syringae KACC10292T against Harmful Cyanobacteria Microcystis aeruginosa

“…At the laboratory level, there have been numerous research studies where algicidal bacteria have been directly utilized to target organisms, but there is a significant limitation to the use of these bacteria for eliminating cyanobacteria blooms in fields; for example, in an open environment, their algicidal activity was not sustained as much as that under small scale laboratory condition, since it is difficult for them to form a stable micro-ecosystem in fields [13,14]. To resolve this limitation, an alternative way to use a bacterial consortium mixed with multiple-species algicidal bacteria is newly suggested [15]; there were joint effects of various algicidal bacteria in a pilot scale experiment (ca. 312 L).…”