二氧化钛纳米结构的抗病毒活性作为菜豆黄花叶病毒在蚕豆中的控制策略。

Antiviral activity of titanium dioxide nanostructures as a control strategy for broad bean strain virus in faba bean.

机构信息

Agricultural Botany Department, Kafr-El-Sheikh University, Kafr El Sheikh, Egypt.

Pesticides Chemistry and Toxicology Department, Kafr-El-Sheikh University, Kafr El Sheikh, Egypt.

出版信息

Pest Manag Sci. 2019 Mar;75(3):828-834. doi: 10.1002/ps.5185. Epub 2018 Oct 7.

DOI:10.1002/ps.5185

PMID:30141238

Abstract

BACKGROUND

This study fabricated titanium dioxide nanostructures (TDNS) to control broad bean stain virus (BBSV) in faba bean plants. Protection of faba bean against BBSV was evaluated biologically with respect to virus severity, reduction in BBSV accumulation and expression of a pathogenesis-related gene.

RESULTS

The results indicate that faba bean plants treated with TDNS show a significant reduction in disease severity relative to untreated plants. The regulatory and defense gene involved in the salicylic acid signaling pathway was highly expressed in faba bean plants treated with TDNS compared with untreated plants. The structural features of TDNS, such as the small particle size and suitable shape, contributed to its high efficacy against BBSV. Growth of faba bean plants treated with TDNS was significantly enhanced relative to untreated plants.

CONCULSION

摘要

背景

本研究制备了二氧化钛纳米结构（TDNS）来控制蚕豆染色病毒（BBSV）在蚕豆植物中的感染。从病毒严重程度、BBSV 积累减少和与发病机制相关基因的表达等方面，对蚕豆抵御 BBSV 的能力进行了生物学评价。

结果

结果表明，与未处理的植株相比，用 TDNS 处理的蚕豆植株的病情严重程度显著降低。与未处理的植株相比，用 TDNS 处理的蚕豆植株中涉及水杨酸信号通路的调节和防御基因表达水平较高。TDNS 的结构特征，如小粒径和合适的形状，有助于其对 BBSV 发挥高效作用。用 TDNS 处理的蚕豆植株的生长明显优于未处理的植株。