中国水稻科学2011，Vol.25Issue(3)：314-320,7.DOI:10.3969/j.issn.1001-7216.2011.03.013
稻瘟病菌对新型模式植物二穗短柄草的致病性研究
Pathogenicity of Rice Blast Fungus Magnaporthe oryzae on Brachypodium distachyon
摘要
Abstract
An inoculation method for rice blast fungus Magnaporthe oryzae to Brachypodium distachyon was developed to investigate the infection process and symptom development in comparison with those on rice (Oryza sativa ) and barley ( Hordeum Vulgare).M.oryzae could infect the leaves, sheathes, stems and panicles of B.distachyon and cause blast disease.Spraying conidium suspension on either whole seedlings or leaf segments led to typical symptoms on B.distachyon.During the whole seedling inoculation, the symptoms on B.distachyon leaves developed closely resemble with rice; but the lesions on B.distachyon had better uniformity in shapes and sizes than those on rice or harley.In the leaf segments inoculation, only initiate and low-developed lesions could be found on rice, while normal symptoms on B.distachyon and barley.Inoculated with lowvirulent mutants of M.oryzae, B.distachyon produced low-level symptoms.And the symptom level of each mutant on B.distachyon corresponded well to that on rice.In addition, typical infection processes presented on B.distachyon leaves: forming melanized appressoria, penetrating into host epiderm and then forming hyphae in epidermal cells.According to these results, B.distachyon can be used as a candidate for studying fungus-plant interactions and as a probable source of disease resistance.关键词
二穗短柄草/稻瘟病菌/互作/模式植物/致病性Key words
Brachypodium distachyon/ Magnaporthe oryzae / interaction/ model plant/ pathogenicity分类
农业科技引用本文复制引用
王小艳,孙国昌,王教瑜,姜华,王艳丽,张震,柴荣耀,毛雪琴,邱海萍,杜新法..稻瘟病菌对新型模式植物二穗短柄草的致病性研究[J].中国水稻科学,2011,25(3):314-320,7.基金项目
国家自然科学基金资助项目(30900933 （）
30970082). （）
