Plant ferredoxin-like protein enhances disease resistance against bacterial soft rot through intensifying PAMP-triggered immunity

in International Symposium (poster summary), 國際研討會(摘要海報發表)
標題Plant ferredoxin-like protein enhances disease resistance against bacterial soft rot through intensifying PAMP-triggered immunity
出版類型國際研討會(摘要海報發表)
出版年度2014
AuthorsYi-Hsien Lin, 林宜賢
出版日期Aug 9 2014 12:0
會議地點Minneapolis, MN
其他編號0000
中文摘要

Application of a transgene such as plant ferredoxin-like protein (PFLP) is a possible strategy to protect plants against bacterial diseases. Our previous reports demonstrate that transgenic plants express extracellular PFLP (ESF plants) are more resistant against bacterial pathogens. This protein intensifies hypersensitive response (HR) in plants while a pathogen associated molecular pattern (PAMP), harpin, was infiltrated. Thus, we attempted to determine whether PFLP participates in intensifying PAMP-triggered immunity to enhance disease resistance. Firstly, we showed that ESF plants were resistant against bacterial soft rot caused by Pectobacterium carotovorum subsp. carotovorum. Then, the fliC which encoded flagellin from Pcc was cloned and expressed. In Col-0 plants, the ROS generation and HR ratio were induced by the treatment with both PFLP and FliC, which did not occur as a result of treatment with PFLP or FliC alone. In ESF plants, FliC also elicited more callose deposition. Moreover, we demonstrated that the PFLP-intensified ROS generation and HR were related to Ca2+ influx and activation of NADPH oxidase. We concluded that the PFLP-intensified disease resistance is associated with the intensification of PAMP-triggered immunity.

網址http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-104-11-S3.1
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