Efficacy of binary combinations of botanical pesticides for rotifer elimination in microalgal cultivation

Huang, Yuan; Liu, Jianguo; Ling, Li; Pang, Tao; Zhang, Litao

doi:10.1016/j.biortech.2013.11.098

Cited by 24 publications

(11 citation statements)

References 26 publications

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“…The total pigment content (chlorophyll and carotenoid) decreased approximately 39.6% and 41.8% in the CA/TSN and NH 4 HCO 3 treatments, respectively (Fig. 4B, P b 0.05) treatment was attributed to pigment degradation due to the CA/TSN combination [12]. In the NH 4 HCO 3 treatment, the high ammonia concentration would have an adverse influence on algal growth.…”

Section: Comparison Of the Ca/tsn Combination And Ammonium Bicarbonatmentioning

confidence: 85%

“…The high ammonia level produces toxicity to the central nervous system by increasing the extracellular glutamate level, leading to acute ammonia intoxication of rotifers [25,26]. In contrast, the low concentration of CA/TSN exterminated rotifers by damaging the digestive system and paralyzing the neuromuscular system, finally resulting in physiological disorders of the rotifers [12]. These distinct mechanisms are responsible for the different responses of the rotifer density.…”

Section: Comparison Of the Ca/tsn Combination And Ammonium Bicarbonatmentioning

confidence: 96%

“…With advantages of decreased insecticide resistance, increased efficacy and reduced dosage, the synergistic CA/TSN combination at the ratio 1:9 showed great rotifer-control effects in marine Chlorella and Nannochloropsis cultures under laboratory conditions [12]. However, Spirulina is a genus of cyanobacteria, whose tolerance to pesticides differs from that of the green algae [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Treatment potential of a synergistic botanical pesticide combination for rotifer extermination during outdoor mass cultivation of Spirulina platensis

Huang

Liu

Li³

et al. 2014

Algal Research

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Section: Comparison Of the Ca/tsn Combination And Ammonium Bicarbonatmentioning

confidence: 85%

Section: Comparison Of the Ca/tsn Combination And Ammonium Bicarbonatmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Treatment potential of a synergistic botanical pesticide combination for rotifer extermination during outdoor mass cultivation of Spirulina platensis

Huang

Liu

Li³

et al. 2014

Algal Research

Self Cite

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“…Recently, with the increasing interest in oleaginous microalgae for biofuel production, rotifer contamination has attracted increasing attention. To date, several pesticides extracted from plants have been used to control rotifer blooms in algae cultivation systems (Huang et al 2014a(Huang et al , 2014b(Huang et al , 2017, but microalgal resistance to rotifers has not been reported. Therefore, it is necessary to investigate microalgal robustness, especially in terms of the ability to resist rotifers (Day et al 2012), taking the outdoor environment for producing microalgal biofuel in mass culture systems into account (Stephens et al 2010).…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Lipid accumulation and anti-rotifer robustness of microalgal strains isolated from Eastern China

et al. 2017

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Large-scale production of biofuels and other highvalue products from microalgae focuses on strain selection with desired characteristics such as high lipid productivity and robustness. However, microalgae often suffer severe biomass losses due to contamination that comes in the form of herbivores, especially rotifers. In this study, we found that the total lipid content of 54 microalgal strains from Eastern China ranged from 12.6 to 59.9% of dry cell weight (dw), with an average of 35.4% dw. Lipid productivity of these microalgal strains varied from 0.04 to 0.14 g L −1 day, and 15 showed lipid production rates over 0.10 g L −1 day −1. The fatty acid profiles of 34 microalgal strains with lipid content over 40% dw were analyzed by gas chromatography. We found that the amount of C18:1 increased with increasing total lipid content, whereas C14:0 and C16:0 showed a negative correlation to the total amount of lipids. An experimental rotifer-microalgae predator-prey model was constructed, and the anti-rotifer robustness of these microalgal strains was evaluated. We found that Didymogenes sp. HN-4 can depress the growth of rotifers significantly. This study demonstrates the biodiversity of the native Chinese microalgae in lipid productivity and robustness, which lays the groundwork for mass algal culture.

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“…Our previous study showed that celangulin (CA) and toosendanin (TSN) derived from Celastrus angulatus and Melia azedarach, respectively, decreased rotifer density and fecundity, although had no toxic effects on microalgal cell growth of Chlorella culture (Huang et al 2014a). Furthermore, the botanical pesticide of CA:TSN combination, at a 1:9 ratio, showed an excellent potential and was economically feasible for rotifer extermination in microalgal cultures (Huang et al 2014b). However, the efficacy of the CA:TSN (1:9) combination needs further investigation.…”

Section: Introductionmentioning

confidence: 99%

Special issue in honour of Prof. Reto J. Strasser - Efficacy of botanical pesticide for rotifer extermination during the cultivation of Nannochloropsis oculata probed by chlorophyll a fluorescence transient

Zhang¹,

Xu²,

Liu³

2020

Photosynt.

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Nannochloropsis is widely used in aquaculture as a feed source. However, large-scale cultivation of Nannochloropsis usually fails due to rotifer contamination. In order to identify an effective technique for reducing rotifer contamination, the effect of Brachionus plicatilis contamination on photosynthetic characteristics in Nannochloropsis oculata and the efficacy of the celangulin (CA):toosendanin (TSN) (1:9) combination for rotifer extermination were investigated using chlorophyll a fluorescence transient. B. plicatilis could directly devour microalgal cells and sharply reduced N. oculata density to very low levels. B. plicatilis also inhibited activities of PSII reaction centers, both acceptor and donor side, thereby damaging the photosynthetic performance of surviving N. oculata cells. However, the CA:TSN (1:9) combination could completely eliminate B. plicatilis, thereby preventing rotifers from devouring microalgae cells and protecting the photosynthetic performance of the surviving algal cells against rotifers damage. Therefore, the binary combination of CA:TSN (1:9), is considered to be a good candidate of botanical pesticide for controlling rotifer contamination.

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Efficacy of binary combinations of botanical pesticides for rotifer elimination in microalgal cultivation

Cited by 24 publications

References 26 publications

Treatment potential of a synergistic botanical pesticide combination for rotifer extermination during outdoor mass cultivation of Spirulina platensis

Treatment potential of a synergistic botanical pesticide combination for rotifer extermination during outdoor mass cultivation of Spirulina platensis

Lipid accumulation and anti-rotifer robustness of microalgal strains isolated from Eastern China

Special issue in honour of Prof. Reto J. Strasser - Efficacy of botanical pesticide for rotifer extermination during the cultivation of Nannochloropsis oculata probed by chlorophyll a fluorescence transient

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