Characterization of an algicidal bacterium Brevundimonas J4 and chemical defense of Synechococcus sp. BN60 against bacterium J4

Lin, Shengqin; Pan, Jiemin; Li, Zhenghua; Liu, Xianglong; Tan, Jing; Yang, Hong

doi:10.1016/j.hal.2014.05.002

Cited by 26 publications

(18 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…; Lin et al . ). Compared with the number of algicidal bacterial strains which have been isolated and identified, there are less algicidal compounds successfully extracted, purified and identified.…”

Section: Biological Control Methodsmentioning

confidence: 97%

See 1 more Smart Citation

A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

View full text Add to dashboard Cite

The impacts of harmful algal blooms on human health, tourism, fisheries and ecosystems have increased in recent decades. Eutrophication and the feared climate change are believed to further challenge authorities and those whose activity depends on coastal resources. While in most of the affected countries, regulatory steps have been taken to protect consumers of contaminated food, there has been an unequal focus on management systems. Some countries such as EEUU and Canada have focused on monitoring and prediction programs, whereas others (e.g. Korea, China) have relied on direct control of blooms in the sea. Here, we review current control methods for HABs including their fundamentals and the last scientific advances. A thorough revision of all considered approaches so far has been included. Ecological studies of the impact of the countermeasures were also considered.

show abstract

Section: Biological Control Methodsmentioning

confidence: 97%

“…This is probably due to the difficulties in the purification of this type of compounds (Lin et al . ). Despite numerous examples of bacterial strains with strong algicidal and apparently specific activity, their use has not yet been attempted in the field.…”

Section: Biological Control Methodsmentioning

confidence: 97%

A critical review on control methods for harmful algal blooms

Gallardo

Astuya-Villalón

Llanos-Rivera

et al. 2018

Reviews in Aquaculture

View full text Add to dashboard Cite

show abstract

“…The significance level was set as P < 0.05. Alginolysis rate (%) was calculated as (1 − N t /N 0 ) × 100, where N t is the algal cell count at time t, and N 0 is the initial algal cell count (Lin et al 2014). Algal cell count reduction rate (%) was calculated as (1 − N Jt /N Ct ) × 100, where N J t is the algal cell count at time t in the group to which the bacterial suspension was added and N Ct is the algal cell count at time t in the control group.…”

Section: Methodsmentioning

confidence: 99%

Algicidal bacterium CZBC1 inhibits the growth of Oscillatoria chlorina, Oscillatoria tenuis, and Oscillatoria planctonica

et al. 2019

AMB Expr

View full text Add to dashboard Cite

Frequent harmful cyanobacteria blooms limit the sustainable development of aquaculture. Algicidal bacteria can efficiently control harmful algae without secondary pollution. The algicidal bacteria CZBC1 can lyse Oscillatoria spp. and other harmful cyanobacteria, but its effector mechanism and algicidal threshold are unknown. In this study, we examined the algicidal effect of CZBC1 on O. chlorina, O. tenuis, and O. planctonica by microscopic enumeration and scanning electron microscopy observation. Then, we examined the alginolytic effects of CZBC1 (concentrations 103–106 colony forming units (cfu)/mL) on these three species (concentrations 103–106 cells/mL) to determine the effective concentrations of CZBC1 for Oscillatoria spp. alginolysis. Results showed that CZBC1 can directly lyse O. chlorina and O. tenuis but indirectly lyse O. planctonica. When the initial concentration of CZBC1 was 106 cfu/mL, alginolytic effects were high for all three species at all concentrations, and the alginolytic rate could reach 100% in 3–9 days. When the initial concentration of CZBC1 was lower (103 cfu/mL), its inhibitory effects were delayed by 2–5 days, but the cell counts were significantly decreased compared with the control, evidencing significant alginolysis. In addition, the higher the concentration of the algicidal bacteria suspension, the more significant the alginolytic effects. Our results indicate that CZBC1 has different alginolytic mechanisms for O. chlorina, O. tenuis, and O. planctonica, and that different initial concentrations of CZBC1 have different alginolytic effects on these algal species.

show abstract

“…Nutrient input control is the ultimate strategy for the control of harmful algal blooms (HABs) 7 . Meanwhile, numerous other strategies have been used to manage HABs.…”

mentioning

confidence: 99%

Synergistic algicidal effect and mechanism of two diketopiperazines produced by Chryseobacterium sp. strain GLY-1106 on the harmful bloom-forming Microcystis aeruginosa

Guo

Liu

Pan

et al. 2015

Sci Rep

Self Cite

View full text Add to dashboard Cite

A potent algicidal bacterium isolated from Lake Taihu, Chryseobacterium sp. strain GLY-1106, produces two algicidal compounds: 1106-A (cyclo(4-OH-Pro-Leu)) and 1106-B (cyclo(Pro-Leu)). Both diketopiperazines showed strong algicidal activities against Microcystis aeruginosa, the dominant bloom-forming cyanobacterium in Lake Taihu. Interestingly, these two algicidal compounds functioned synergistically. Compared with individual treatment, combined treatment with cyclo(4-OH-Pro-Leu) and cyclo(Pro-Leu) significantly enhanced algicidal activity, accelerated the increase in intracellular reactive oxygen species (ROS) levels in M. aeruginosa, and further decreased the activities of antioxidases, effective quantum yield and maximal electron transport rate of M. aeruginosa. The results also showed that the algicidal characteristics of cyclo(4-OH-Pro-Leu) are distinct from those of cyclo(Pro-Leu). Cyclo(4-OH-Pro-Leu) mainly interrupted the flux of electron transport in the cyanobacterial photosynthetic system, whereas cyclo(Pro-Leu) mainly inhibited the activity of cyanobacterial intracellular antioxidases. A possible algicidal mechanism for the synergism between cyclo(4-OH-Pro-Leu) and cyclo(Pro-Leu) is proposed, which is in accordance with their distinct algicidal characteristics in individual and combined treatment. These findings suggest that synergism between algicidal compounds might be used as an effective strategy for the future control of Microcystis blooms.

show abstract

Characterization of an algicidal bacterium Brevundimonas J4 and chemical defense of Synechococcus sp. BN60 against bacterium J4

Cited by 26 publications

References 49 publications

A critical review on control methods for harmful algal blooms

A critical review on control methods for harmful algal blooms

Algicidal bacterium CZBC1 inhibits the growth of Oscillatoria chlorina, Oscillatoria tenuis, and Oscillatoria planctonica

Synergistic algicidal effect and mechanism of two diketopiperazines produced by Chryseobacterium sp. strain GLY-1106 on the harmful bloom-forming Microcystis aeruginosa

Contact Info

Product

Resources

About