Non-host resistance to penetration and hyphal growth of Magnaporthe oryzae in Arabidopsis.
Non-host resistance to penetration and hyphal growth of Magnaporthe oryzae in Arabidopsis.
复制标题
拟南芥中麦糖蛋白酶的渗透和菌丝生长的非宿主耐药性。
DOI：
10.1038/srep00171
复制
发表时间：
2011
影响因子：
4.6
通讯作者：
Ishikawa, Atsushi
中科院分区：
文献类型：
--
作者：
Nakao, Misato;Nakamura, Ryotaro;Kita, Kaori;Inukai, Ryuya;Ishikawa, Atsushi
稻瘟病是水稻的一种毁灭性病害。水稻抗稻瘟病的机理已经得到了广泛的研究。Oryzae的病理系统已成为植物与微生物相互作用研究的一个模型。然而，其他植物对稻瘟病的非寄主抗性机制尚不清楚。我们发现，包括pen2 NahG pmr5 agb1和pen2 NahG pmr5 mlo2植株在内的多个突变体对M. oryzae的渗透抗性严重受损，并且允许真菌在渗透的表皮细胞中生长。此外，水稻Pi21促进了侵染菌丝从渗透的拟南芥表皮细胞向邻近的叶肉细胞的运动。这些结果表明，PEN2、PMR5、AGB1和MLO2在拟南芥对M. oryzae的穿透抗性和穿透后抗性中都起作用，并且表明水稻Pi21的缺失导致了拟南芥对M. oryzae的NHR。
Rice blast caused by Magnaporthe oryzae is a devastating disease of rice. Mechanisms of rice resistance to blast have been studied extensively, and the rice–M. oryzae pathosystem has become a model for plant–microbe interaction studies. However, the mechanisms of non-host resistance (NHR) to rice blast in other plants remain poorly understood. We found that penetration resistance to M. oryzae in multiple mutants, including pen2 NahG pmr5 agb1 and pen2 NahG pmr5 mlo2 plants, was severely compromised and that fungal growth was permitted in penetrated epidermal cells. Furthermore, rice Pi21 enhanced movement of infection hyphae from penetrated Arabidopsis epidermal cells to adjacent mesophyll cells. These results indicate that PEN2, PMR5, AGB1, and MLO2 function in both penetration and post-penetration resistance to M. oryzae in Arabidopsis, and suggest that the absence of rice Pi21 contributed to Arabidopsis NHR to M. oryzae.
登录
查看更多内容
影响因子：
3.5
作者：
Lawton, K;Weymann, K;Ryals, J
通讯作者：
Ryals, J
影响因子：
7.2
作者：
Vogel, JP;Raab, TK;Somerville, SC
通讯作者：
Somerville, SC
影响因子：
4.9
作者：
Schreiber, Christine;Slusarenko, Alan J.;Schaffrath, Ulrich
通讯作者：
Schaffrath, Ulrich
影响因子：
7.2
作者：
Pumplin, Nathan;Mondo, Stephen J.;Harrison, Maria J.
通讯作者：
Harrison, Maria J.
影响因子：
7.2
作者：
Clough, SJ;Bent, AF
通讯作者：
Bent, AF