A single Amino-acid Substitution of Polygalacturonase Inhabiting Protein （OsPGIP2） Allows Rice to Acquire Higher Resistance to Sheath Blight
作者单位：Horticulture and Plant Protection CollegeYangzhou University Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of EducationCollege of AgricultureYangzhou University
会议名称：《中国植物病理学会2017年学术年会》
会议日期：2017年
学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治]
关 键 词：Single amino acid substitution Polygalacturonase inhibiting protein Sheath blight resistance Oryzae sativa
摘 要：A possible strategy to control plant diseases is improvement of natural plant defense mechanisms against the infection of *** one kind of leucine-rich repeat proteins,polygalacturonase inhibiting proteins（PGIPs） have been found involved in plant defense against the pathogens by inhibiting the activity of fungal endo-polygalacturonases（endo-PGs）.To dig more resistant gene,a single amino acid of the OsPGIP2,which has no effect on the endo-PGs activity of Rhizoctonia solani,was substituted and it allowed OsPGIP2 to acquire the inhibiting *** of OsPGIP2 significandy increased rice resistance to rice sheath blight and counteracted the tissue degradation caused by ***,OsPGIP2 overexpression did not affect rice agronomic traits or yield *** these indicated that OsPGIP2 was an important potential gene that could be applied to rice sheath blight resistance breeding.