Combined effects of four Microcystis aeruginosa strains and Scenedesmus obliquus concentrations on population dynamics and resting egg formation of two Daphnia species

Li, Fang; Deng, Dexiang; Zhang, Xiaoli; Ji, Guoqiang; Huang, Qingfei

doi:10.1007/s10201-014-0433-4

Cited by 10 publications

(8 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sotero-Santos et al (2008) performed acute assays with C. dubia using natural phytoplanktonic extracts and obtained CL50 in 48 h of exposition with concentrations of MC varying from 18.5 to 90 μg L −1 . Negative effects of the M. aeruginosa lineages that produce microcystin were also detected for the development and reproduction of Daphnia (D. similoides and D. pulex), which was confirmed by Li et al (2014).…”

Section: Resultsmentioning

confidence: 59%

Evaluation of the Ecotoxicological Effects of Microcystis aeruginosa and Cylindrospermopsis raciborskii on Ceriodaphnia dubia Before and After Treatment with Ultrasound

Lira

Moreira

Tonello

et al. 2017

Water Air Soil Pollut

View full text Add to dashboard Cite

Bodies of water contaminated by cyanobacteria and their neuro-and hepatotoxins have caused environmental and public health issues all over the world. Therefore, determining safe concentrations in water for multiple uses to protect aquatic biota and identify forms of remediation are of broad interest. In this study, we isolated strains of the cyanobacteria Microcystis aeruginosa and Cylindrospermopsis raciborskii, which produce microcystin (MC) and saxitoxin (STX), respectively. Ecotoxicological tests using suspensions of lysed lyophilizated cells with concentrations of toxins equivalent to those permitted by legislation for potability (1 μg L −1 for MC and 3 μg L −1 for STX) did not result in significant mortality of the model organism, Ceriodaphnia dubia, where as concentrations five times greater resulted in decreased survival for both toxins. However, reproduction was significantly reduced even in the lower concentrations, indicating that the currently permitted standards are not safe for environmental protection. When cyanotoxins were treated with ultrasound, mortalities were no longer significant, independent of concentrations. Although reproduction was still lower in relation to the control, it was significantly higher when compared to the results obtained before ultrasound. Ultrasound has been previously applied to cyanobacteria cell lysis, but this is the first study to investigate the ecotoxicological effects of ultrasound on cyanotoxins. Using new test organisms and different times and potency of sonication will permit the development of more efficient techniques for the remediation of these toxins and the development of more adequate parameters for the protection of aquatic life.

show abstract

Section: Resultsmentioning

confidence: 59%

Evaluation of the Ecotoxicological Effects of Microcystis aeruginosa and Cylindrospermopsis raciborskii on Ceriodaphnia dubia Before and After Treatment with Ultrasound

Lira

Moreira

Tonello

et al. 2017

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…The number of offsprings at first reproduction of D. carinata decreased with increasing M. aeruginosa biomass [25]. Some previous investigations had found that M. aeruginosa from Lake Chaohu contained microcystins, which it was toxic to Daphnia [3,16,27]. In this study, the number of offsprings at first reproduction in D. similoides in the SH group of Microcystis was significantly higher than that in all other groups, and the innate capacity of increase in D. similoides in the small-colony groups of Microcystis was significantly higher than those in the large-colony groups of Microcystis.…”

Section: Discussionmentioning

confidence: 99%

“…Cyanobacterial bloom occurs in the lake every summer. Cyanobacteria are usually dominated by Microcystis, which produces microcystins [8,16,27].…”

Section: Methodsmentioning

confidence: 99%

Combined effects of colonial size and concentration ofMicrocystis aeruginosaon the life history traits ofDaphnia similoides

Zhang

Deng

Zhang

et al. 2015

Acta Biologica Hungarica

Self Cite

View full text Add to dashboard Cite

Microcystis colonial size and concentration have detrimental effects on life history traits of Daphnia, but their detailed interactions have remained unclear so far. Our experiments show that the interaction between Microcystis colonial size and concentration on maturation time, life expectancy, net reproductive rate and innate capacity of increase in Daphnia similoides was significant. In all groups, the survival rate of D. similoides was 100% within 8 days. This value then declined quickly in the large-colony groups and in the SH group of Microcystis. Colonial M. aeruginosa significantly reduced the maturation time and body length at maturity of D. similoides. The number of offspring at first reproduction per female in the SH group of Microcystis was significantly higher than those in other groups. Net reproductive rate of D. similoides in the SL group of Microcystis was significantly higher than those in other groups of Microcystis. The innate capacity of increase of D. similoides in small-colony Microcystis groups was significantly higher than that in the large-colony groups. The results suggested that the effect of smallcolony Microcystis on the reproduction of Daphnia was positive under lower concentration, while their toxicity was intensitied under higher concentration when small-colony Microcystis were by Daphnia as food.

show abstract

“…Usually, M . aeruginosa has an inhibitory effect on the life‐history traits of Daphnia species (Gustafsson & Hansson, 2004; Jiang et al, 2013; Li et al, 2014; Lyu, Meng, et al, 2016; Yang et al, 2011). However, some studies have indicated that single‐cell or small‐colony Microcystis spp.…”

Section: Introductionmentioning

confidence: 99%

“…can be fed by Daphnia spp. to favor their growth and reproduction (Chen & Xie, 2003; Hanazato, 1991; Li et al, 2014). Other studies have even shown that the offspring of Daphnia species can obtain more adaptability to toxic M .…”

Section: Introductionmentioning

confidence: 99%

Effects of toxic Microcystis aeruginosa on the expression of Hox genes in Daphnia similoides sinensis

Cao

et al. 2022

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

Lake eutrophication and cyanobacterial blooms have become worldwide environmental issues. Under cyanobacterial blooms (especially Microcystis), Daphnia spp. can transfer beneficial information to their offspring in order to improve adaptability. Hox genes are important regulatory factors of transcription in metazoans, and are involved in the growth and development of organisms. However, the mechanisms of Microcystis on the expression of Hox genes in Daphnia are unclear. In this study, the effects of Microcystis aeruginosa on Hox gene expression in the mothers and offspring (F1) of two Daphnia similoides sinensis clones were investigated using a mixed diet of M. aeruginosa and Scenedesmus obliquus. Compared with the 100%S food treatment, the survival rates at the end of the experiment of clone 1‐F1 in the food treatments containing M. aeruginosa were significantly lower, but it was significantly higher for clone 2‐F1 in the 20%M + 80%S food treatment. Moreover, the survival rates at the end of the experiment of clone 1‐F1 in the food treatments containing M. aeruginosa were significantly higher than those of their mother. Based on previous transcriptome data, 14 Hox genes of D. similoides sinensis were identified, including Abd‐B, CDX‐1, Dll, HOX‐1, HOX‐2, HOXA1, HOXA2, HOXB3, HOXB3‐2, HOXB7, HOXC4, HOXC7, HOXC8, and HOXD10. The expressions of Abd‐B, HOX‐2, HOXA1, HOXC7, and HOXD10 of clone 2‐mothers in the 40%M + 60%S food treatment were 2.9–22.5 times as high as in the 100%S food treatment, whereas the expressions of CDX‐1, HOX‐1, HOXB3, and HOXD10 of clone 1‐mothers were 4.8–13.1 times at same food level. The expression of HOXA2, HOXC7, HOXC8, and HOXD10 of clone 1‐F1 in the 40%M + 60%S food treatment was 8.2–21.1 times as high as in the 100%S food treatment. However, compared with the 100%S food treatment, the expressions of CDX‐1 in the mothers and F1 of clone 2 and HOXB7 in the mothers of clone 1 in the food treatments containing M. aeruginosa were significantly lower (p < .05). Our results suggest that the offspring (F1) produced by D. similoides sinensis mother pre‐exposed to toxic M. aeruginosa had stronger adaptability to M. aeruginosa than their mothers. Moreover, Hox gene expressions of D. similoides sinensis had obvious differences between clones under stress of toxic M. aeruginosa.

show abstract

Combined effects of four Microcystis aeruginosa strains and Scenedesmus obliquus concentrations on population dynamics and resting egg formation of two Daphnia species

Cited by 10 publications

References 20 publications

Evaluation of the Ecotoxicological Effects of Microcystis aeruginosa and Cylindrospermopsis raciborskii on Ceriodaphnia dubia Before and After Treatment with Ultrasound

Evaluation of the Ecotoxicological Effects of Microcystis aeruginosa and Cylindrospermopsis raciborskii on Ceriodaphnia dubia Before and After Treatment with Ultrasound

Combined effects of colonial size and concentration ofMicrocystis aeruginosaon the life history traits ofDaphnia similoides

Effects of toxic Microcystis aeruginosa on the expression of Hox genes in Daphnia similoides sinensis

Contact Info

Product

Resources

About