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Detection of Neonicotinoids in agriculture soil and degradation of thiacloprid through photo degradation, biodegradation and photo-biodegradation

Punniyakotti Elumalai Xiaohui Yi; Zhenguo Chen; Aruliah Rajasekar; Teresa Cristina Brazil de Paiva; Mohamed A Hassaan; Guang-Guo Ying; Mingzhi Huang

Environmental pollution v.306, p.119452-, 2022

Elsevier 2022

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  • Título:
    Detection of Neonicotinoids in agriculture soil and degradation of thiacloprid through photo degradation, biodegradation and photo-biodegradation
  • Autor: Punniyakotti Elumalai
  • Xiaohui Yi; Zhenguo Chen; Aruliah Rajasekar; Teresa Cristina Brazil de Paiva; Mohamed A Hassaan; Guang-Guo Ying; Mingzhi Huang
  • Assuntos: BIODEGRADAÇÃO; Biodegradation; Light-Emitting Diodes; Neonicotinoids; Photo-Biodegradation; Thiacloprid
  • É parte de: Environmental pollution v.306, p.119452-, 2022
  • Notas: Disponível em: https://doi.org/10.1016/j.envpol.2022.119452. Acesso em: 16 ago. 2023.
  • Descrição: The social and ecological influence of Neonicotinoids (NEOs) usage in agriculture sector is progressively higher. There are seven NEOs insecticides widely used for the insects control. Among the NEOs, thiacloprid (THD) was extensively used for insect control during crop cultivation. This study targets to analyse the contamination levels of NEOs in agricultural soil and identify photo-biodegradation of THD degradation using pure isolates and mixed consortium. The photo degradation (PD), biodegradation (BD) and photo-biodegradation (PBD) of THD were compared. The corn field agricultural soils were polluted by four NEOs, among them THD had greater contamination level (surface soil: 3901.2 ± 0.04 μg/g) and (sub-surface soil: 3988.6 ± 0.05 μg/g). Three soil free enriched bacterial strains following Bacillus atrophaeus (PB-2), Priestia megaterium (PB-3) (formerly known as Bacillus megaterium), and Peribacillus simplex (PB-4) (formerly known as Bacillus simplex) were identified by microbiological and molecular 16s rRNA gene sequencing. The PD, BD and PBD of THD were conducted and degradation rate was detected by instrument UPLC-MS-MS. The PBD process with blue-LEDs showed better THD degradation efficiency than PD and BD, where the specific THD degradation rate was 85 ± 0.2%, 87 ± 0.5%, and 89 ± 0.3%, respectively for PB-2, PB-3 and PB-4. Then, the photo-biodegradation performance is greater at 150, 175, 200 rpm, pH 7.0–9.0, and temperature 30–35 °C. After the PBD system deliver four intermediate metabolites, the THD degradation process maybe through nitro reduction, hydroxylation and oxidative cleavage pathway.
  • Editor: Elsevier
  • Data de criação/publicação: 2022
  • Formato: p. 119452.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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