期刊
PLANT DISEASE
卷 105, 期 2, 页码 384-391出版社
AMER PHYTOPATHOLOGICAL SOC
DOI: 10.1094/PDIS-04-20-0732-RE
关键词
Agrobacterium; Allorhizobium vitis; grapevine shoots; patho-gen detection; real-time PCR
资金
- Grand Reims, the European Union (Europe Invests in Champagne Ardennes)
- European Regional Development Fund (AGROVITIFREE project)
- Centre National de la Recherche Scientifique (CNRS) (EC2CO Ecosphere Continentale et Cotiere CNRS IntEnd)
An efficient DNA-based real-time PCR assay was developed to monitor the development of Allorhizobium vitis in grapevine plantlets. The novel technique targets chromosomal genes and the virulent tumor-inducing plasmid of the pathogen, providing reliable and reproducible quantification from early infection to tumor formation in plants. This low-cost method is suitable for fundamental research and offers a rapid and robust quantification of the pathogen in planta.
Allorhizobium vitis is the primary causal pathogen of grapevine crown gall disease. Because this endophytic bacterium can survive as a systemic latent (symptomless) infection in grapevine, detecting and monitoring its development in planta is of great importance. In plant bacteria studies, plate counting is routinely used as a simple and reliablemethod to evaluate the bacterial population level in planta. However, isolation techniques are time-consuming and present some disadvantages such as the risk of contamination and the need for fresh samples for research. In this study, we developed a DNA-based real-time PCR assay that can replace the classical method to monitor the development of Allorhizobium vitis in grapevine plantlets. Primers targeting Allorhizobium vitis chromosomic genes and the virulent tumor-inducing plasmid were validated. The proposed quantitative real-time PCR technique is highly reliable and reproducible to assess Allorhizobium vitis numeration at the earliest stage of infection until tumor development in grapevine plantlets. Moreover, this low-cost technique provides rapid and robust in planta quantification of the pathogen and is suitable for fundamental research to monitor bacterial development over time.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据