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Azoxystrobin-induced excessive reactive oxygen species (ROS) production and inhibition of photosynthesis in the unicellular green algae Chlorella vulgaris.
Environ Sci Pollut Res Int. 2015 May; 22(10):7766-75.ES

Abstract

This study investigated the short-term toxicity of azoxystrobin (AZ), one of strobilurins used as an effective fungicidal agent to control the Asian soybean rust, on aquatic unicellular algae Chlorella vulgaris. The median percentile inhibition concentration (IC₅₀) of AZ for C. vulgaris was found to be 510 μg L(-1). We showed that the algal cells were obviously depressed or shrunk in 300 and 600 μg L(-1) AZ treatments by using the electron microscopy. Furthermore, 19, 75, and 300 μg L(-1) AZ treatments decreased the soluble protein content and chlorophyll concentrations in C. vulgaris and altered the energy-photosynthesis-related mRNA expression levels in 48- and 96-h exposure periods. Simultaneously, our results showed that AZ could increase the total antioxidant capacity (T-AOC) level and compromise superoxide dismutase (SOD), peroxidase (POD), glutathione S transferase (GST), glutathione peroxidase (GPx) activities, and glutathione (GSH) content. These situations might render C. vulgaris more vulnerable to oxidative damage. Overall, the present study indicated that AZ might be toxic to the growth of C. vulgaris, affect energy-photosynthesis-related mRNA expressions, and induce reactive oxygen species (ROS) overproduction in C. vulgaris.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Liu L
Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China.
Zhu B
No affiliation info available
Wang GX
No affiliation info available

MeSH

AntioxidantsChlorella vulgarisChlorophyllDown-RegulationFungicides, IndustrialGlutathioneMethacrylatesOxidation-ReductionPeroxidasePeroxidasesPhotosynthesisPyrimidinesReactive Oxygen SpeciesStrobilurinsSuperoxide Dismutase

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25672875

Citation

Liu, Lei, et al. "Azoxystrobin-induced Excessive Reactive Oxygen Species (ROS) Production and Inhibition of Photosynthesis in the Unicellular Green Algae Chlorella Vulgaris." Environmental Science and Pollution Research International, vol. 22, no. 10, 2015, pp. 7766-75.
Liu L, Zhu B, Wang GX. Azoxystrobin-induced excessive reactive oxygen species (ROS) production and inhibition of photosynthesis in the unicellular green algae Chlorella vulgaris. Environ Sci Pollut Res Int. 2015;22(10):7766-75.
Liu, L., Zhu, B., & Wang, G. X. (2015). Azoxystrobin-induced excessive reactive oxygen species (ROS) production and inhibition of photosynthesis in the unicellular green algae Chlorella vulgaris. Environmental Science and Pollution Research International, 22(10), 7766-75. https://doi.org/10.1007/s11356-015-4121-7
Liu L, Zhu B, Wang GX. Azoxystrobin-induced Excessive Reactive Oxygen Species (ROS) Production and Inhibition of Photosynthesis in the Unicellular Green Algae Chlorella Vulgaris. Environ Sci Pollut Res Int. 2015;22(10):7766-75. PubMed PMID: 25672875.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Azoxystrobin-induced excessive reactive oxygen species (ROS) production and inhibition of photosynthesis in the unicellular green algae Chlorella vulgaris. AU - Liu,Lei, AU - Zhu,Bin, AU - Wang,Gao-Xue, Y1 - 2015/02/13/ PY - 2014/07/20/received PY - 2015/01/11/accepted PY - 2015/2/13/entrez PY - 2015/2/13/pubmed PY - 2015/8/13/medline SP - 7766 EP - 75 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 22 IS - 10 N2 - This study investigated the short-term toxicity of azoxystrobin (AZ), one of strobilurins used as an effective fungicidal agent to control the Asian soybean rust, on aquatic unicellular algae Chlorella vulgaris. The median percentile inhibition concentration (IC₅₀) of AZ for C. vulgaris was found to be 510 μg L(-1). We showed that the algal cells were obviously depressed or shrunk in 300 and 600 μg L(-1) AZ treatments by using the electron microscopy. Furthermore, 19, 75, and 300 μg L(-1) AZ treatments decreased the soluble protein content and chlorophyll concentrations in C. vulgaris and altered the energy-photosynthesis-related mRNA expression levels in 48- and 96-h exposure periods. Simultaneously, our results showed that AZ could increase the total antioxidant capacity (T-AOC) level and compromise superoxide dismutase (SOD), peroxidase (POD), glutathione S transferase (GST), glutathione peroxidase (GPx) activities, and glutathione (GSH) content. These situations might render C. vulgaris more vulnerable to oxidative damage. Overall, the present study indicated that AZ might be toxic to the growth of C. vulgaris, affect energy-photosynthesis-related mRNA expressions, and induce reactive oxygen species (ROS) overproduction in C. vulgaris. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/25672875/Azoxystrobin_induced_excessive_reactive_oxygen_species__ROS__production_and_inhibition_of_photosynthesis_in_the_unicellular_green_algae_Chlorella_vulgaris_ DB - PRIME DP - Unbound Medicine ER -