Aerosol transmission of Pseudomonas amygdali pv. lachrymans in greenhouses

文献类型： 外文期刊

第一作者： Chai, Ali

作者： Chai, Ali;Yuan, Lifang;Li, Lei;Shi, Yanxia;Xie, Xuewen;Li, Baoju;Yuan, Lifang;Wang, Qi

作者机构：

关键词： Aerosol; Transmission; Pseudomonas amygdali pv. lachrymans; Cucumber angular leaf spot disease; Plant bacterial disease

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2020 年 748 卷

页码：

收录情况： SCI

摘要： Most previous studies on aerosols have focused on the role of aerosols in the transmission of human and animal pathogens; however, little is known about the role of aerosols in the transmission of plant bacterial disease. In this study, experimental evidence for the emission and transmission of Pseunomonas. amygdali pv. lachrymans (Pal) aerosol was provided, and the results supported that diseased cucumber plants served as the main source of Pal aerosol. Bacterial aerosols released by infected plants played a significant role in the epidemiology of cucumber angular leaf spot (ALS) disease. Aerosol chambers were constructed to study the characteristics of Pal aerosols released by artificially infested cucumber plants. The particle size of Pal aerosol was predominately distributed from 1.1 to 4.7 mu m, accounting for 72.16% of the total amount of Pal aerosol. The infection threshold of aerosolized Pal to cause ALS disease was 84-179 CFU/m(3). In addition, the transmission dynamics of Pal aerosols fromdonor cucumber plants to recipient cucumber plants were also confirmed in exposure chambers and green-houses. The results fromthe present study verified the hypothesis that aerosol dissemination is a potential route for the epidemiology of plant bacterial disease, and these data will contribute to the development of new strategies for the effective alleviation and control of plant bacterial diseases. (c) 2020 Elsevier B.V. All rights reserved.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序