Comprehensive analyses of degradative enzymes associated with mesotrione-degraded process in rice for declining environmental risks

Chen, Zhao Jie; Lv, Yun; Zhai, Xiao Yan; Yang, Hong

doi:10.1016/j.scitotenv.2020.143618

Cited by 28 publications

(23 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the bioconcentration factor (BCF) was analyzed by calculating the percentage of herbicide concentrations that were allocated between the root and shoot tissues in maize. 23 The BCFs of the maize shoot and root under treatment of the herbicides and SA were significantly lower than those under only treatment of the herbicides (Table 1), confirming that the SA supply can decrease the accumulation of the three herbicides in maize tissues.…”

Section: ■ Results and Discussionmentioning

confidence: 69%

“…12,22 The oxidative stress in plants dysfunctions many critical macromolecular molecules (such as enzymes and proteins) and other important substances (e.g., lipids) in the cells. 23 Superoxide dismutase (SOD) is the first line of enzymes in the active oxygen scavenging system, catalyzing the O 2…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Research has indicated that most of the abiotic stress is caused by the accumulation of superoxide radicals (O 2 · – ) and H 2 O 2 in plants. , The oxidative stress in plants dysfunctions many critical macromolecular molecules (such as enzymes and proteins) and other important substances ( e.g. , lipids) in the cells . Superoxide dismutase (SOD) is the first line of enzymes in the active oxygen scavenging system, catalyzing the O 2 · – disproportionation reaction to produce H 2 O 2 and O 2 .…”

Section: Resultsmentioning

confidence: 99%

“…The enzyme activity of SOD was measured using the method of nitrotetrazolium (NBT) photochemical reduction. 23 The amount of enzyme, which usually causes a 50% photochemical reduction inhibition rate, is defined as an enzyme activity unit (U). The mixture reaction system of 3 mL contained 30 μL of enzyme extract, 50 mM phosphate buffer (pH 7.8), 10 mM methionine, 1.17 mM riboflavin, and 56 mM NBT.…”

Section: ■ Conclusionmentioning

confidence: 99%

See 3 more Smart Citations

Residues of Reduced Herbicides Terbuthylazine, Ametryn, and Atrazine and Toxicology to Maize and the Environment through Salicylic Acid

Feng

et al. 2021

ACS Omega

Self Cite

View full text Add to dashboard Cite

Terbuthylazine (TBA), ametryn (AME), and atrazine (ATZ) are triazine family herbicides. They are dominantly used in the field of cereal crops like wheat and maize for prevention of upland from annual gramineous and broad-leaved weeds, with attributes of weed efficiency broad spectrum and good market performance. Salicylic acid (SA) is a kind of natural plant growth regulator existing widely in the plant kingdom and participating in many physiological and defense processes. In this study, the effects of SA on the detoxification and degradation of herbicides TBA, AME, and ATZ in maize were investigated. When maize plants were exposed to 6 mg kg −1 of the triazine herbicides, the growth and chlorophyll concentration were reduced, while the membrane permeability increased. After maize was sprayed with 5 mg kg −1 SA, the herbicide-induced phytotoxicity was significantly assuaged, with the increased content of chlorophyll and decreased cellular damage in plants. Activities of several biomarker enzymes such as SOD, POD, and GST were repressed in the presence of SA. The concentration of the triazine herbicides in maize and the soil determined by high-performance liquid chromatography was drastically reduced by spraying SA. Using LC/Q-TOF-MS/MS, six metabolites and nine conjugates of AME in maize and soil were characterized. The relative contents of AME metabolites and conjugates in maize with SA were higher than those without SA. These results suggest that SA is able to promote the detoxification and decay of these triazine herbicides in maize and soil.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 69%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: ■ Conclusionmentioning

confidence: 99%

See 2 more Smart Citations

Residues of Reduced Herbicides Terbuthylazine, Ametryn, and Atrazine and Toxicology to Maize and the Environment through Salicylic Acid

Feng

et al. 2021

ACS Omega

Self Cite

View full text Add to dashboard Cite

show abstract

“…3.6 Effect of BPA dosage on detoxi cation enzyme activity NADPH-cytochrome P450 reductase (CPR) is part of cytochrome P450s system, which transfers the reduced xenobiotics from NADPH to the cytochrome P450 (Chen et al, 2021). glutathione S-transferase (GST)and glycosyltransferase (GT) catalyzed conjugation of toxicants with GSH and sugar, respectively, and the complex were further delivered to subcellular apartment for catabolism (Zhang et al, 2017, Chen et al, 2021. Figure 4 illustrates the effects of BPA dosage on CPR, GST, GT activities and BPA contents in seven cultured groups of the single species seedlings leaves.…”

Section: Effects Of Bpa On the Content Of Antioxidant Substancesmentioning

confidence: 99%

Plant Species Compositions Alleviate Toxicological Effects of Bisphenol a by Enhancing Growth, Antioxidant Defense System and Detoxification

Nie

Wang

2021

Preprint

View full text Add to dashboard Cite

Bisphenol A (BPA), a broadly disseminated endocrine disturbing chemicals in environment, is harmful to creatures and plants. Plants can uptake and metabolize BPA, but a single plant species ability is limited. Undeniably, plant species compositions have a more vital ability to remove pollutants than a single plant species. However, the mechanisms of plant species compositions alleviating toxicological effects of bisphenol A are poorly understood. Here, we administered plant species compositions, which based on a full-factorial design of Phragmites australis(A), Typha latifolia(B) and Arundo donax(C), to unveil their role in BPA exposure. The comes about illustrated that with 1.5-10mg L−1 of BPA introduction, the mixed-hydroponic culture groups (e.g. sp(ABC)) significantly increased biomass production and photosynthetic pigments content as revealed by augmented the shoots fresh, dry weight, chlorophyll a and total chlorophyll content. While mixed-hydroponic culture groups (e.g. sp(AB), sp(ABC)) significantly increased antioxidant enzymes activity and antioxidant substances, it astoundingly diminished responsive oxygen species (ROS) and malondialdehyde (MDA) substance, proposing that mixed-hydroponic culture groups calmed oxidative stretch in takes off. Further analysis revealed that mixed-hydroponic culture groups (e.g. sp(AB), sp(AC), sp(ABC)) significantly increased detoxification enzyme activity of NADPH-cytochrome P450 reductase (CPR), glutathione S-transferase (GST) and glycosyltransferase (GT). Moreover, mixed-hydroponic culture groups (e.g. sp(AB), sp(AC), sp(ABC)) decreased the BPA substance in leaves, proposing that mixed-hydroponic culture groups advanced BPA metabolism by improving CPR, GST, GT detoxification. These results suggest that a mixed-hydroponic culture strategy can alleviate BPA phytotoxicity and possibly offer natural and potential phytoremediation of BPA way.

show abstract

High aquaporin expression correlates with increased translocation of quinclorac from shoots to roots in resistant Echinochloa crus‐galli var. zelayensis

Tong

et al. 2022

Pest Management Science

View full text Add to dashboard Cite

Background Echinochloa crus‐galli var. zelayensis is a troublesome weed in rice fields and can be controlled by using quinclorac. However, over‐reliance on quinclorac has resulted in resistant (R) barnyardgrass, which differs significantly in its ability to transport quinclorac compared to susceptible (S) barnyardgrass. This study aimed to investigate the underlying mechanisms for this different translocation between R and S barnyardgrass. Results Larger amount of quinclorac was transferred from shoots to roots in R compared to S barnyardgrass. After 1 day of quinclorac [300 g active ingredient (a.i.) ha−1] foliar treatment, its content in shoots of R was 81.92% of that in S barnyardgrass; correspondingly, in roots of R was 1.17 fold of that in S barnyardgrass. RNA‐sequencing and quantitative real‐time polymerase chain reaction (qRT‐PCR) confirmed the expression levels of PIPs belonging to aquaporins (AQPs) in R were higher than in S barnyardgrass, with or without quinclorac treatment. With co‐application of quinclorac and AQPs inhibitors [mercury(II) chloride (HgCl2)] treatment, even though the expression levels of PIPs and the transport rates of quinclorac were both suppressed in R and S barnyardgrass, this process was less pronounced in R than in S barnyardgrass. Conclusion This report provides clear evidence that higher PIPs expression results in rapid quinclorac translocation from shoots to roots and reduces the quinclorac accumulation in the shoot meristems in R barnyardgrass, thus reducing the control efficacy of quinclorac. © 2022 Society of Chemical Industry.

show abstract

Comprehensive analyses of degradative enzymes associated with mesotrione-degraded process in rice for declining environmental risks

Cited by 28 publications

References 41 publications

Residues of Reduced Herbicides Terbuthylazine, Ametryn, and Atrazine and Toxicology to Maize and the Environment through Salicylic Acid

Residues of Reduced Herbicides Terbuthylazine, Ametryn, and Atrazine and Toxicology to Maize and the Environment through Salicylic Acid

Plant Species Compositions Alleviate Toxicological Effects of Bisphenol a by Enhancing Growth, Antioxidant Defense System and Detoxification

High aquaporin expression correlates with increased translocation of quinclorac from shoots to roots in resistant Echinochloa crus‐galli var. zelayensis

Contact Info

Product

Resources

About