Uptake and Translocation of Triflumezopyrim in Rice Plants

Fan, Tianle; Chen, Xiaojun; Xu, Zhiying; Liu, Li; Shen, Dianjing; Dong, Sa; Zhang, Qingxia

doi:10.1021/acs.jafc.9b07868

Cited by 22 publications

(18 citation statements)

References 24 publications

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“…The current study showed that the inoculation of bacterial consortium can have a detoxification effect on M. sativa in soil and water. , The obtained result is consistent with Bhatt et al who showed that the inhibitory effect of the added chlorsulfuron-methyl on PH and FW of Zea mays L. disappeared and PH and FW recovered to 83.9 and 83.1%, respectively after inoculation with Enterobacter sp. CE-1.…”

Section: Resultssupporting

confidence: 91%

Biodegradation Pathway and Detoxification of β-cyfluthrin by the Bacterial Consortium and Its Bacterial Community Structure

Tuo

et al. 2022

J. Agric. Food Chem.

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In the process of microbial degradation of pyrethroid pesticides, the synergistic effect of the microbial community is more conducive to the complete degradation of toxic compounds than a single strain. At present, the degradation pathway of pyrethroids in a single strain has been well revealed, but the synergistic metabolism at the community level has not been well explained. This study elucidated the bacterial community succession, metabolic pathway, and phytotoxicity assessment during βcyfluthrin biodegradation by a novel bacterial consortium enriched from contaminated soil. The results showed that the half-life of βcyfluthrin at different initial concentrations of 0.25, 0.5, 0.75, and 1.0 mg mL −1 were 4. 16, 7.34, 12.81, and 22.73 days, respectively. Enterobacter was involved in β-cyfluthrin degradation metabolism in the initial stage, and other bacterial genera (Microbacterium, Ochrobactrum, Pseudomonas, Hyphomicrobiaceae, Achromobacter, etc.) significantly contribute to the degradation of intermediate metabolites in the later stages. Functional gene prediction and metabolite analysis showed that xenobiotic biodegradation and metabolism, especially benzoate degradation and metabolism by cytochrome P450 were the major means of β-cyfluthrin degradation. Further, two degradation pathways of β-cyfluthrin were proposed, which were mainly ester hydrolysis and oxidation to degrade β-cyfluthrin through the production of carboxylesterase and oxidoreductase. In addition, the inoculated bacterial consortium could degrade β-cyfluthrin residues in water and soil and reduce its phytotoxicity in Medicago sativa. Hence, this novel bacterial consortium has important application in the remediation environments polluted by β-cyfluthrin.

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Section: Resultssupporting

confidence: 91%

Biodegradation Pathway and Detoxification of β-cyfluthrin by the Bacterial Consortium and Its Bacterial Community Structure

Tuo

et al. 2022

J. Agric. Food Chem.

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“…Therefore, these two pesticides remain in the cell wall. 33 These experimental results also provide a reasonable explanation as to how that pymetrozine is transported to the aerial part, whereas spirotetramat is mainly stored in the root.…”

Section: Distribution Of Spirotetramat and Pymetrozine Insupporting

confidence: 58%

Uptake and Biotransformation of Spirotetramat and Pymetrozine in Lettuce (Lactuca sativa L. var. ramosa Hort.)

Liu

Feng

Guo

et al. 2023

J. Agric. Food Chem.

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Here, we investigated the uptake, transport, and subcellular distribution of the pesticides pymetrozine and spirotetramat, and spirotetramat metabolites B-enol, B-glu, B-mono, and B-keto, under hydroponic conditions. Spirotetramat and pymetrozine exhibited high bioconcentrations in lettuce roots, with both having root concentration factor (RCF) values >1 after exposure for 24 h. The translocation of pymetrozine from roots to shoots was higher than that of spirotetramat. Pymetrozine is absorbed in roots mainly via the symplastic pathway and is primarily stored in the soluble fraction of lettuce root and shoot cells. The cell wall and soluble fractions were the major enrichment sites of spirotetramat and its metabolites in root cells. Spirotetramat and Benol were mainly enriched in the soluble fractions of lettuce shoot cells, whereas B-keto and B-glu accumulated in cell walls and organelles, respectively. Both symplastic and apoplastic pathways were involved in spirotetramat absorption. Pymetrozine and spirotetramat uptake by lettuce roots was passive, with no aquaporin-mediated dissimilation or diffusion. The findings of this study enhance our understanding of the transfer of pymetrozine, spirotetramat, and spirotetramat metabolites from the environment to lettuce, and their subsequent bioaccumulation. This study describes a novel approach for the efficient management of lettuce pest control using spirotetramat and pymetrozine. At the same time, it is of great significance to evaluate the food safety and environmental risks of spirotetramat and its metabolites.

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“…Determination of TFM in rice stem or grain followed the methods of Peng et al . and Fan et al 36,37 . UPLC analysis was performed with an Agilent 1290 UPLC system equipped with a binary pump, automatic sampler, column oven, and diode array detector.…”

Section: Methodsmentioning

confidence: 99%

“…Standard triflumezopyrim was provided by Jiangsu Agroproduct Quality Test Center (Jiangsu Academy of Agricultural Sciences). Determination of TFM in rice stem or grain followed the methods of Peng et al and Fan et al 36,37 UPLC analysis was performed with an Agilent 1290 UPLC system equipped with a binary pump, automatic sampler, column oven, and diode array detector. A 1-μl aliquot of the sample solution was injected into an Agilent Eclipse Plus chromatographic column C 18 (2.1 × 50 mm i.d., 1.7 μm).…”

Section: Lc-ms/ms Methods For the Determination Of Tfm In The Rice Stem And Grainmentioning

confidence: 99%

Seed dressing with triflumezopyrim controls brown planthopper populations by inhibiting feeding behavior, fecundity and enhancing rice plant resistance

Zhang²,

Chen

et al. 2021

Pest Management Science

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BACKGROUND Triflumezopyrim (TFM), a novel mesoionic insecticide, has high efficiency at a low dosage, and is mainly used to control hopper species. A previous study demonstrated that seed dressing with TFM effectively controlled rice planthopper populations in mechanically transplanted rice fields; however, mode of action for control was unclear. RESULTS The study shows that seed dressing with TFM resulted in elevated levels of oxalic acid, flavonoids, phenolic substances, callose and other compounds associated with Nilaparvata lugens resistance in rice plants, and low TFM residue content in rice plant stem and grain. Host choice behavioral experiments showed that N. lugens females prefer feeding on untreated rice plants. Electrical penetration graph (EPG) data showed that seed dressing with TFM at medium and high doses significantly prolonged the non‐probing period and inhibited phloem ingestion in N. lugens females. These changes led to a significant decrease in female secretion of honeydew, expression of genes encoding vitellogenin and juvenile hormone acid methyltransferase, body weight and longevity, and significantly influenced several physiological parameters resulting in impaired oocyte growth, fecundity and population. Field survey data showed that seed dressing with TFM was efficacious and relatively durable in protecting rice plants from infestation by planthoppers. CONCLUSION This study revealed that seed dressing with TFM enhances rice plant resistance to N. lugens by limiting phloem ingestion and increasing the N. lugens non‐probing period; this leads to reduced fecundity of females and lowers N. lugens numbers in the field. © 2021 Society of Chemical Industry

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Uptake and Translocation of Triflumezopyrim in Rice Plants

Cited by 22 publications

References 24 publications

Biodegradation Pathway and Detoxification of β-cyfluthrin by the Bacterial Consortium and Its Bacterial Community Structure

Biodegradation Pathway and Detoxification of β-cyfluthrin by the Bacterial Consortium and Its Bacterial Community Structure

Uptake and Biotransformation of Spirotetramat and Pymetrozine in Lettuce (Lactuca sativa L. var. ramosa Hort.)

Seed dressing with triflumezopyrim controls brown planthopper populations by inhibiting feeding behavior, fecundity and enhancing rice plant resistance

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