Cellulose Nanocrystal Surface Cationization: A New Fungicide with High Activity against Phycomycetes capsici

Autor: Shunyu Xiang, Xiaozhou Ma, Shuyue Liao, Huan Shi, Changyun Liu, Yang Shen, Xing Lv, Mengting Yuan, Guangjin Fan, Jin Huang, Xianchao Sun
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Molecules, Vol 24, Iss 13, p 2467 (2019)
Druh dokumentu: article
ISSN: 1420-3049
67144071
DOI: 10.3390/molecules24132467
Popis: At present, the management of Phytophthora capsici (P. capsici) mainly relies on chemical pesticides. However, along with the resistance generated by P. capsici to these chemical pesticides, the toxicity and non-degradability of this chemical molecule may also cause serious environmental problems. Herein, a new bio-based nano-antifungal material (CNC@CTAB) was made with coating hexadecyl trimethyl ammonium bromide (CTAB) on the surface of a cellulose nanocrystal (CNC). This material was then applied to the prevention of P. capcisi. This particle was facilely fabricated by mixing CTAB and sulfuric group modified CNC in an aqueous solvent. Compared to pure CTAB, the enrichment of CTAB on the CNC surface showed a better anti-oomycete activity both in vitro and in vivo. When CNC@CTAB was applied on P. capsici in vitro, the inhibition rate reached as high as 100%, while on the pepper leaf, the particle could also efficiently prevent the infection of P. capsici, and achieve a disease index as low as zero Thus, considering the high safety of CNC@CTAB in agricultural applications, and its high anti-oomycete activity against P. capsici, we believe that this CNC@CTAB has great application potential as a new green nano-fungicide in P. capsici management during the production of peppers or other vegetables.
Databáze: Directory of Open Access Journals
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