The phytotoxicities of decabromodiphenyl ether (BDE-209) to different rice cultivars (Oryza sativa L.)

Li, Kelun; Chen, Jie; Zhu, Lizhong

doi:10.1016/j.envpol.2017.12.079

Cited by 43 publications

(32 citation statements)

References 53 publications

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“…Amino acids are the building blocks of proteins and substrates for numerous secondary metabolites' biosynthesis. Amino acid profile has been shown to be significantly affected by oxidative stress in plants (Figure 1) [20,24,25,28,29]. An increase in the content of individual amino acids during stress can result from the activation of biosynthetic pathways and from enhanced protein degradation [14,25,100].…”

Section: Amino Acidsmentioning

confidence: 99%

“…Oryza sativa decabromodiphenyl ether treatment improves stress-tolerance [20] Arabidopsis thaliana roots menadione treatment increase in abundance [25,28] Oryza sativa suspension cells menadione treatment increase in abundance [14] Leu Arabidopsis thaliana, cat2 mutant catalase-deficiency increase in abundance in leaves [112] Ocimum basilicum exogenously applied cysteine alleviates oxidative stress [113] Glu…”

Section: Lysmentioning

confidence: 99%

“…It has been established that under various stress conditions the presence of a "oxidative constituent" manifests itself through the alteration of physiological parameters (growth inhibition, chlorophyll bleaching, hypersensitive response-like cell death) and biochemical characteristics (changes in enzymatic and nonenzymatic antioxidants levels; damage to membranes, DNA, RNA, and protein molecules; accumulation of lipid peroxidation products, etc.). The distinct metabolic changes, which are repeatedly observed under different stress conditions and display correlation with enhanced ROS production, accumulation of lipid peroxidation products, and induction of the antioxidant system, can also be considered as symptoms of oxidative stress [6,[19][20][21]. Numerous studies have described oxidative stress-induced alterations in the content of small molecules, including ROS themselves, antioxidants, and redox compounds (reviewed in [22]).…”

Section: Introductionmentioning

confidence: 99%

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Oxidative Stress-Induced Alteration of Plant Central Metabolism

Savchenko

Tikhonov

2021

Life

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Oxidative stress is an integral component of various stress conditions in plants, and this fact largely determines the substantial overlap in physiological and molecular responses to biotic and abiotic environmental challenges. In this review, we discuss the alterations in central metabolism occurring in plants experiencing oxidative stress. To focus on the changes in metabolite profile associated with oxidative stress per se, we primarily analyzed the information generated in the studies based on the exogenous application of agents, inducing oxidative stress, and the analysis of mutants displaying altered oxidative stress response. Despite of the significant variation in oxidative stress responses among different plant species and tissues, the dynamic and transient character of stress-induced changes in metabolites, and the strong dependence of metabolic responses on the intensity of stress, specific characteristic changes in sugars, sugar derivatives, tricarboxylic acid cycle metabolites, and amino acids, associated with adaptation to oxidative stress have been detected. The presented analysis of the available data demonstrates the oxidative stress-induced redistribution of metabolic fluxes targeted at the enhancement of plant stress tolerance through the prevention of ROS accumulation, maintenance of the biosynthesis of indispensable metabolites, and production of protective compounds. This analysis provides a theoretical basis for the selection/generation of plants with improved tolerance to oxidative stress and the development of metabolic markers applicable in research and routine agricultural practice.

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Section: Amino Acidsmentioning

confidence: 99%

Section: Lysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oxidative Stress-Induced Alteration of Plant Central Metabolism

Savchenko

Tikhonov

2021

Life

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“…(Fonnum and Mariussen, 2009). At present, studies on the toxicity of PBDEs have been commonly conducted on animals (Macaulay et al, 2015), whereas the toxicological studies on plants are limited to only a few plant materials, including marine microalgae (Kallqvist et al, 2006), mangrove (Farzana et al, 2017;Farzana and Tam, 2018;Wang et al, 2014), maize (Xu et al, 2015), duckweed (Qiu et al, 2018;Sun et al, 2016), rice Li et al, 2018), and ryegrass (Xie et al, 2013).…”

mentioning

confidence: 99%

“…The aforementioned studies show that PBDEs are toxic to most plants. The toxic effects of PBDEs on the growth and development of higher plants include the reduction of the germination rate, inhibition of root and stem elongation, leaf shedding, and significant decrease in biomass (Farzana et al, 2017;Li et al, 2018;Qiu et al, 2018;Wang et al, 2014;Xu et al, 2015). The key mechanism of the phytotoxicity induced by PBDEs is the overproduction of reactive oxygen species (ROS) (Farzana et al, 2017;Qiu et al, 2018;Wang et al, 2014;Xie et al, 2013;Xu et al, 2015).…”

mentioning

confidence: 99%

Toxic Effects of 2,2′,4,4′-Tetrabromodiphenyl Ether on Chinese Cabbage

Meng

Liu

Ping

et al. 2018

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Additional index words. polybrominated diphenyl ethers (PBDEs), Chinese cabbage, physiological effects, photosynthesis, antioxidase Abstract. 2,2#,4,4#-tetrabromodiphenyl ether (BDE-47) is one of the most toxic polybrominated diphenyl ethers (PBDEs). The toxic effects of BDE-47 on Chinese cabbage seedlings were analyzed in this study. After a 30-day hydroponic exposure to BDE-47 at different concentrations (25, 50, 75, and 100 mg · L L1 ), the fresh weight of Chinese cabbage seedlings was significantly decreased, whereas their root:shoot ratio was increased, indicating that BDE-47 inhibited the growth of the plant, especially the overground parts. The water content, chlorophyll content, and protein content of Chinese cabbage leaves also markedly decreased with the increase of the BDE-47 concentration. In addition, BDE-47 weakened the photosynthetic capacity of the leaves, which was supported by the decreased photosynthetic parameters [net photosynthetic rate (P n ) and stomatal conductance (g S )]. Although the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) in the leaves were enhanced after exposure to BDE-47, the increased malondialdehyde (MDA) content attested to the existence of membrane lipid peroxidation. The increased plasma membrane permeability and the decreased chlorophyll fluorescence parameters [the maximum quantum yield of PSII photochemistry at t = 0 (F v /F m ), photosystem II (PSII) reaction centers (RCs) per cross section (CS) (RC/CS), absorption energy flux per CS (ABS/CS), trapped energy flux per CS (TR o /CS), electron transport flux per CS (ET o /CS), performance index on the absorption basis (PI abs ), and driving force for photosynthesis (DF)] further proved that the plasma membrane and photosynthetic membrane were damaged by BDE-47. Our study demonstrated the phytotoxicities of BDE-47 to Chinese cabbage, which can provide valuable information for understanding the toxicity of BDE-47 on vegetables.

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