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Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize.
Yang, Xiaoxiao; Feng, Ke; Wang, Guo; Zhang, Shifang; Zhao, Juan; Yuan, Xiangyang; Ren, Jianhong.
Afiliación
  • Yang X; College of Life Sciences, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
  • Feng K; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China.
  • Wang G; College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
  • Zhang S; College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
  • Zhao J; College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
  • Yuan X; College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China. zj_sxau@163.com.
  • Ren J; College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China. yxy_sxau@163.com.
J Nanobiotechnology ; 22(1): 262, 2024 May 17.
Article en En | MEDLINE | ID: mdl-38760823
ABSTRACT

BACKGROUND:

Nanoplastics, are emerging pollutants, present a potential hazard to food security and human health. Titanium dioxide nanoparticles (Nano-TiO2), serving as nano-fertilizer in agriculture, may be important in alleviating polystyrene nanoplastics (PSNPs) toxicity.

RESULTS:

Here, we performed transcriptomic, metabolomic and physiological analyzes to identify the role of Nano-TiO2 in regulating the metabolic processes in PSNPs-stressed maize seedlings (Zea mays L.). The growth inhibition by PSNPs stress was partially relieved by Nano-TiO2. Furthermore, when considering the outcomes obtained from RNA-seq, enzyme activity, and metabolite content analyses, it becomes evident that Nano-TiO2 significantly enhance carbon and nitrogen metabolism levels in plants. In comparison to plants that were not subjected to Nano-TiO2, plants exposed to Nano-TiO2 exhibited enhanced capabilities in maintaining higher rates of photosynthesis, sucrose synthesis, nitrogen assimilation, and protein synthesis under stressful conditions. Meanwhile, Nano-TiO2 alleviated the oxidative damage by modulating the antioxidant systems. Interestingly, we also found that Nano-TiO2 significantly enhanced the endogenous melatonin levels in maize seedlings. P-chlorophenylalanine (p-CPA, a melatonin synthesis inhibitor) declined Nano-TiO2-induced PSNPs tolerance.

CONCLUSIONS:

Taken together, our data show that melatonin is involved in Nano-TiO2-induced growth promotion in maize through the regulation of carbon and nitrogen metabolism.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poliestirenos / Titanio / Carbono / Zea mays / Melatonina / Nitrógeno Idioma: En Revista: J Nanobiotechnology Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Poliestirenos / Titanio / Carbono / Zea mays / Melatonina / Nitrógeno Idioma: En Revista: J Nanobiotechnology Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido