Pathogenicity of Rice Blast Fungus Magnaporthe oryzae on
Brachypodium distachyonAbstract: Inoculation methods for rice blast fungus Magnaporthe oryzae to Brachypodium distachyon were 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 leaves, sheathes, stems and panicles of B. distachyon and cause blast disease.
Spraying conidial suspension on either intact seedlings or leaf segments induced typical symptoms on B. distachyon. During
the intact seedling inoculation, the symptom developed on B. distachyon leaves closely resembled that on rice; but the
lesions on B. distachyon had better uniformity in shapes and sizes than those on rice or barley. In the leaf segments
inoculation, only initial and low-developed lesions could be found on rice, while normal symptoms on B. distachyon and barley.
Inoculated with low-virulent mutants of M. oryzae, B. distachyon produced low-level symptoms. 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 epidermis 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.
Pathogenicity of Rice Blast Fungus Magnaporthe oryzae on
Brachypodium distachyonAbstract: Inoculation methods for rice blast fungus Magnaporthe oryzae to Brachypodium distachyon were 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 leaves, sheathes, stems and panicles of B. distachyon and cause blast disease.
Spraying conidial suspension on either intact seedlings or leaf segments induced typical symptoms on B. distachyon. During
the intact seedling inoculation, the symptom developed on B. distachyon leaves closely resembled that on rice; but the
lesions on B. distachyon had better uniformity in shapes and sizes than those on rice or barley. In the leaf segments
inoculation, only initial and low-developed lesions could be found on rice, while normal symptoms on B. distachyon and barley.
Inoculated with low-virulent mutants of M. oryzae, B. distachyon produced low-level symptoms. 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 epidermis 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.
การแปล กรุณารอสักครู่..
![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)