Evaluation of the effect of silver nanoparticles and silver ions using stress responsive gene expression in Chironomus riparius

Nair, Prakash M. Gopalakrishnan; Park, Sun Young; Choi, Jinhee

doi:10.1016/j.chemosphere.2013.03.060

Cited by 59 publications

(48 citation statements)

References 75 publications

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“…4b). Similarly, it has been reported that, upon AgNP exposure, CAT mRNA was upregulated in Chironomus riparius (Nair et al 2013). They suggested that to remove the elevated H 2 O 2 formation induced by AgNPs results in the upregulation of CAT gene in C. riparius.…”

Section: Agnp-induced Transcriptional Variation Of Anthocyanin Biosynmentioning

confidence: 93%

“…They suggested that to remove the elevated H 2 O 2 formation induced by AgNPs results in the upregulation of CAT gene in C. riparius. Furthermore, they also found that the treatment with AgNPs and Ag+ ions results in the stimulation of the GST genes in C. riparius (Nair et al 2013). It was suggested in earlier studies that GST enzyme catalyzed the detoxification of Ag+ ions by binding to thiol groups of GSH (Almofti et al 2003).…”

Section: Agnp-induced Transcriptional Variation Of Anthocyanin Biosynmentioning

confidence: 94%

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Impact of biologically synthesized silver nanoparticles on the growth and physiological responses in Brassica rapa ssp. pekinensis

Venkidasamy

Venkatesh

Park

2015

Environ Sci Pollut Res

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Silver nanoparticles (AgNPs) were extensively used in various fields, particularly in medicine as an antimicrobial agent. The unavoidable and extensive usage of AgNPs in turn accumulates in the environment. Plants are the essential base of ecosystem and are ready to disturb by environmental pollutants. Therefore, in the present study, we have planned to evaluate the impact of biologically synthesized AgNPs on the essential food crop Chinese cabbage (Brassica rapa ssp. pekinensis). The effects of AgNP-induced plant morphological and physiological changes were investigated in different concentrations (100, 250, and 500 mg/L). The results of morphological features showed that AgNPs at lower concentrations (100 mg/L) exhibit growth-stimulating activity, whereas at higher concentrations (250 and 500 mg/L), particularly, 500 mg/L exhibited growth-suppressing activities which are in terms of reduced root, shoot growth, and fresh biomass. The increased reactive oxygen species (ROS) generation, malondialdehyde production, anthocyanin biosynthesis, and decreased chlorophyll content were also more obviously present at higher concentrations of AgNPs. The concentration-dependent DNA damage was observed in the AgNP-treated plants. The molecular responses of AgNPs indicate that most of the genes related to secondary metabolism (glucosinolates, anthocyanin) and antioxidant activities were induced at higher concentrations of AgNP treatment. The dose-dependent phytotoxicity effects of AgNPs were also observed. Taken together, the highest concentration of AgNPs (500 mg/L) could induce growth-suppressing activities via the induction of ROS generation and other molecular changes in B. rapa seedlings.

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Section: Agnp-induced Transcriptional Variation Of Anthocyanin Biosynmentioning

confidence: 93%

Section: Agnp-induced Transcriptional Variation Of Anthocyanin Biosynmentioning

confidence: 94%

Impact of biologically synthesized silver nanoparticles on the growth and physiological responses in Brassica rapa ssp. pekinensis

Venkidasamy

Venkatesh

Park

2015

Environ Sci Pollut Res

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“…On the other hand, metal nanoparticles have been observed to cause changes in adult emergence. Silver nanoparticles caused a decrease in adult emergence and pupation, and even alterations in the sex ratio have been documented (Nair et al, 2013).…”

Section: Emergence Of Adultsmentioning

confidence: 99%

Fullerenes(nC60) affect the growth and development of the sediment-dwelling invertebrate Chironomus riparius larvae

Waissi-Leinonen

Nybom

Pakarinen

et al. 2015

Environmental Pollution

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“…Since C. riparius are sediment-dwelling and deposit-feeding organisms, they have a high probability of bioaccumulating high concentrations of contaminants through sediment ingestion (Oberholster et al, 2011), including contaminants like nanoparticles. Although in the last few years important reports have been released concerning the ecotoxicological effects of NMs to benthic fauna (Oberholster et al, 2011;Waissi-Leinonen et al, 2012;Nair et al, 2013;Bour et al, 2015), the knowledge is still scarce and the topic needs to be addressed further. However, to the best of our knowledge there is no report in the literature about the ecotoxicological effect of NMs bound to contaminants after the treatment of real hazardous organic and inorganic effluents to the C. riparius.…”

Section: Introductionmentioning

confidence: 99%

Toxicity of solid residues resulting from wastewater treatment with nanomaterials

et al. 2015

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Evaluation of the effect of silver nanoparticles and silver ions using stress responsive gene expression in Chironomus riparius

Cited by 59 publications

References 75 publications

Impact of biologically synthesized silver nanoparticles on the growth and physiological responses in Brassica rapa ssp. pekinensis

Impact of biologically synthesized silver nanoparticles on the growth and physiological responses in Brassica rapa ssp. pekinensis

Fullerenes(nC60) affect the growth and development of the sediment-dwelling invertebrate Chironomus riparius larvae

Toxicity of solid residues resulting from wastewater treatment with nanomaterials

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