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作者:

Huang, Weilan (Huang, Weilan.) | Wang, Meijing (Wang, Meijing.) | Hu, Zhongxuan (Hu, Zhongxuan.) | Yang, Tingze (Yang, Tingze.) | Pei, Hongling (Pei, Hongling.) | Zhang, Fang (Zhang, Fang.)

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摘要:

We first report a pH-responsive multifunctional nano pesticide-fertilizer complex based on zeolitic imidazolate framework-8 (ZIF-8) and RNA interference (RNAi) technology for synergistic control of wilt disease caused by Rhizoctonia solani, and promotion of crop growth. Chemical pesticide prochloraz (Pro), biological pesticide small interfering RNA (siRNA), and a plant growth regulator diethyl aminoethyl hexanoate (DA-6) were loaded in Pro/ DA-6 @ZIF-8 @siRNA nanoparticles (Nps). The Nps had a rhombic orthododecahedron structure and a hydrated particle size of 841.7 & PLUSMN; 12.8 nm. SiRNA has good stability due to the protection of the nanocarrier as well as an excellent controlled-release behavior under acidic conditions due to the degradation of coordination bonds. The Nps can be adsorbed and transmitted via pathogenic mycelium to enhance the efficacy of non-invasive pesticides. Compared to Pro technical, siRNA and Pro co-delivered by ZIF-8 had a synergistic inhibitory effect on pathogenic fungi. Due to the slow-release of DA-6 and the supply of trace elements, the Nps significantly promoted rice seedling growth by regulation of key metabolic enzymes, and the nutritional function of Nps as a zinc ion fer-tilizer was demonstrated. Biological studies further verified that nano-carrier had good biosafety and reduced environmental risks. Therefore, this novel nano pesticide-fertilizer complex has potential applications for the effective management of plant disease to enhance environmental safety.

关键词:

ZIF-8 Synergistic control SiRNA Prochloraz PH-response

作者机构:

  • [ 1 ] [Huang, Weilan]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Meijing]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 3 ] [Hu, Zhongxuan]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 4 ] [Yang, Tingze]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 5 ] [Pei, Hongling]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Fang]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China

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来源 :

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

ISSN: 0927-7757

年份: 2023

卷: 670

5 . 2 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:20

被引次数:

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SCOPUS被引频次: 18

ESI高被引论文在榜: 0 展开所有

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