Inhibitory effects of Chinese traditional herbs and herb-modified clays on the growth of harmful algae, Phaeocystis globosa and Prorocentrum donghaiense

Tian, Fei; Zhou, Jingyun; Sun, Zhiwei; Cai, Zhipeng; Xu, Nianjun; An, Malaviya; Duan, Shunshan

doi:10.1016/j.hal.2014.05.015

Cited by 25 publications

(6 citation statements)

References 50 publications

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“…Consequently, carbon dioxide will not be emitted back into the environment ( Hadiyanto et al, 2012 ). Tian et al (2014) investigated the growth phases of microorganisms and demonstrated their ability to survive in stressful conditions caused by the presence of microplastics. On comparing the growth rate of Spirulina sp.…”

Section: Resultsmentioning

confidence: 99%

Interactions between polyethylene and polypropylene microplastics and Spirulina sp. microalgae in aquatic systems

Hadiyanto

Khoironi

Dianratri

et al. 2021

Heliyon

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This study aimed to evaluate the effect of microplastics on Spirulina sp., the pigment phycocyanin in Spirulina sp., and the effect of Spirulina sp. on the degradation of PE and PP plastic. The interaction of Spirulina sp. with microplstic (PE and PP) was conducted by adding the microplastic (500 mg/500 mL, with a size of 0.5–1 mm 2 ) to microalgae culture. The optical density was measured for 30 days to determine the growth of Spirulina sp. Harvesting was performed to obtain dry Spirulina sp biomass. Phycocyanin was obtained through extraction by mixing 0.1 g dry Spirulina sp. biomass with 25 ml of 1% CaCl 2 in an ultrasonic water bath at 50 kHz, 300 W at 30 °C for 15 min. The results showed that the growth rate of Spirulina sp significantly decreased (p < 0.05) with treatment of PE (SP + PE) (0.0228/day) and PP (Sp + PP) (0.0221/day), compared to the control (Sp-Control) (0.0312/day). Scanning electron microscopy and Fourier transform infrared spectroscopy (FTIR) analyses of Spirulina sp. biomass with the addition of PE and PP revealed surface damage of Spirulina sp. cells and loss of carboxyl groups from proteins in Spirulina sp. at wavelengths of 1397–1450 cm −1 . In addition, Spirulina sp. had decreased the intensity of amine and amide groups from proteins at wavelengths of 3280, 1637, and 1537 cm −1 in the microplastic treatment. The phycocyanin yield and protein content in Spirulina sp. control were 19.69% and 0.147%, respectively, which decreased by 10.7% and 0.121%, respectively, with PE treatment and by 8.7% and 0.108%, respectively, with PP treatment. Moreover, the investigation of PE and PP treated by Spirulina sp showed more significant changes of functional group indicated by the formation of hydroxyl (3286 cm −1 ), carbonyl (1700 cm −1 ), ester (1750 cm −1 ) and primary alcohol (1085 cm −1 ). The results of the EDX microplastic analysis showed a decrease in carbon in PE (1.62%) and PP (1.08%). These FTIR and EDX analysis also proved that microplastic has experienced degradation when treated by Spirulina sp cell culture.

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Section: Resultsmentioning

confidence: 99%

Interactions between polyethylene and polypropylene microplastics and Spirulina sp. microalgae in aquatic systems

Hadiyanto

Khoironi

Dianratri

et al. 2021

Heliyon

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“…This could be because single-exposure prometryn injection concentrations are higher than double-exposure prometryn injection concentrations during the first application, and the time of application affects prometryn biological effects [23]. Taking into account the fact that the algae populations are most sensitive during the lag phase [41], it is understandable that the injected concentrations of prometryn are crucial in impacting M. aeruginosa growth at the beginning of the experiment.…”

Section: Resultsmentioning

confidence: 99%

Effects of Prometryn Exposure Scenarios on Microcystis aeruginosa Growth and Water Qualities in Incubator Experiments

Yang¹,

Huang²,

Huang³

et al. 2021

Water

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Although multiple herbicide exposures are more prospective to occur in water, many previous studies were carried out as single herbicide exposure. To investigate the toxic effect of prometryn on cyanobacteria and water qualities, single and double prometryn exposures (at different growth phases) on Microcystis aeruginosa growth and concentrations of nutrients were compared after a 44-day experiment. Results indicated that under single exposure, maximum inhibition rates were 4.7–12.0% higher than those under double exposures. Correspondingly, the maximum Microcystis aeruginosa densities and growth rates under single exposure were 10.3–21.1% and 19.5–37.7% lower than those under double exposures (p < 0.05), respectively. These findings revealed that repeated prometryn exposures resulted in a reduction in biological effects, because the time of application and the concentration injected during the first application were both significant factors in the biological effects of prometryn. Prometryn exposure scenarios did not have a significant effect on nutrient or nutrient consumption concentrations (p > 0.05). In general, the pattern of nutrient limitation showed a shift from phosphorus to nitrogen limitation. The quantified relationships between Microcystis aeruginosa growth rates and consumed nutrients were studied. Based on the above findings, we believe that a high-dose and single prometryn exposure is a more effective exposure pattern for limiting cyanobacteria growth.

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“…However, between removal efficiency and time, negative correlations (r = -0.29, r = -0.44) were obtained. Previous study on harmful algae, P. globosa and P. donghaiense using Chinese traditional herbs and herb-modified clay have showed that the inhibitory rate of algae increased as the concentration applied increased [9].…”

Section: Test Of Extracts On a Tamiyavanichiimentioning

confidence: 93%

The Potential of Dried and Fresh Extracts of Sansevieria Trifasciata to Mitigate Alexandrium Tamiyavanichii, a Toxic Dinoflagellate

Suberi¹,

Susanti²,

Mukail³

et al. 2018

Sci. herit. j.

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Dinoflagellate is the second largest group of phytoplankton in the marine environment and many of the species have been recognized as toxic species. The high abundance of this species can cause a lot of problems to human health, marine organisms especially caged fish and to the natural environment. In Malaysia, several species of Alexandrium have been reported to cause human intoxication after consumption of contaminated shellfish. During the event, shellfish was banned and lead to economic lost especially to the local fishermen. Therefore, this study was conducted to find alternative way to mitigate the blooms of harmful algae particularly Alexandrium tamiyavanichii using ornamental plant, Sanseviera trifasciata or known as mother-in-law tongue. The extraction of this plant was done in distilled water using dried and fresh plants. Different concentrations of crude extracts (0.001, 0.01, 0.1, 0.5, 1, 1.5, 2 and 2.5 mg/mL) were tested on A. tamiyavanichii within 24 hours. The removal efficiencies (RE) were determined for each concentration tested. The extracts were also tested on brine shrimp to see the possible harmful effect. Results indicate that both extraction methods yielded positive results on A. tamiyavanichii whereby the crude extracts managed to mitigate the species. The LC50 of brine shrimp recorded were 30 mg/ml for fresh plant extract and 70 mg/mL for dried plant extracts. This indicates the possibility of the extractions to be used to mitigate harmful algal bloom (HAB) particularly Alexandrium and provide an alternative way to the relevant agencies to minimize the impact of HAB

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Inhibitory effects of Chinese traditional herbs and herb-modified clays on the growth of harmful algae, Phaeocystis globosa and Prorocentrum donghaiense

Cited by 25 publications

References 50 publications

Interactions between polyethylene and polypropylene microplastics and Spirulina sp. microalgae in aquatic systems

Interactions between polyethylene and polypropylene microplastics and Spirulina sp. microalgae in aquatic systems

Effects of Prometryn Exposure Scenarios on Microcystis aeruginosa Growth and Water Qualities in Incubator Experiments

The Potential of Dried and Fresh Extracts of Sansevieria Trifasciata to Mitigate Alexandrium Tamiyavanichii, a Toxic Dinoflagellate

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