Antifungal activity of montmorillonite/peptide aptamer nanocomposite against Colletotrichum gloeosporioides on Stylosanthes
文献类型： 外文期刊
作者： Xu, Zhenfei 1 ; Jiang, Xiaoli 1 ; Li, Ye 2 ; Ma, Xiang 1 ; Tang, Yanqiong 1 ; Li, Hong 1 ; Yi, Kexian 2 ; Li, Juanjuan 1 ; Liu, Zhu 1 ;
作者机构： 1.Hainan Univ, Sch Life Sci, Haikou 570228, Peoples R China
2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Peoples R China
3.Hainan Univ, One Hlth Insititute, Haikou 570228, Peoples R China
关键词： Peptide aptamer; Montmorillonite; Colletotrichum gloeosporioides; Antifungal activity
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）
ISSN： 0141-8130
年卷期： 2022 年 217 卷
页码：
收录情况： SCI
摘要： Chemical agents are effective treatment methods for anthracnose induced by pathogenic Colletotrichum gloeo-sporioides on Stylosanthes. However, excess consumption of chemical agents destroys the environment, synthetic biology was capable of conquering the issue. The antifungal agent is developed by enclosing a bio-synthesized peptide aptamer with layered montmorillonite via electrostatic interaction. Compared with free peptide aptamer, the nanocomposite exhibits higher antifungal activity against Colletotrichum gloeosporioides, further improving the utilization of peptide aptamer. The nanocomposite killed Colletotrichum gloeosporioides by releasing peptide aptamer after they entered the spore. Moreover, montmorillonite enhances the adhesion ability of peptide aptamer via hydrophobic interactions between nanomaterials and leaves, prolonging the extension time of nanocomposite on leaves. Consequently, 0.1 mg of nanocomposite demonstrates a comparable effect to commercial carbendazim (1 %) to prevent anthracnose on leaves of Stylosanthes induced by HK-04 at room temperature. This work demonstrates an alternative to commercial antifungal agents and proposes a versatile approach to preparing environmental-friendly antifungal agents to inhibit fungal infections on crops.
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