The Effects of Light and Photo‐ and Protein‐synthetic Inhibitors on the Sekiguchi Lesion Formation by Magnaporthe grisea in Rice cv. Sekiguchi‐asahi*
The Effects of Light and Photo‐ and Protein‐synthetic Inhibitors on the Sekiguchi Lesion Formation by Magnaporthe grisea in Rice cv. Sekiguchi‐asahi*
复制标题
光和光合成抑制剂对水稻 Sekiguchi-asahi 稻瘟病菌 Sekiguchi 病斑形成的影响*
DOI：
10.1111/j.1439-0434.1997.tb00338.x
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发表时间：
1997
影响因子：
1.5
通讯作者：
M. Nozu
中科院分区：
文献类型：
--
作者：
S. Arase;R. Fukuyama;K. Tokizawa;S. Ikegami;Y. Honda;M. Nozu
研究了光照在水稻疫霉侵染形成关口病斑（SL）中的意义。关口朝日被调查了。当cv. Sekiguchi-asahi接种M.在不同波长的光照下培养稻瘟病菌孢子，在可见光下均能形成SL。关口朝日相反，在黑光荧光灯的近紫外辐射和红外荧光灯的近红外辐射下，形成典型的爆炸和/或坏死斑病变。光依赖性SL形成的有效波长为400-700 nm。此外，辐射波长越长，SL越大。3-（3，4-二氯苯基）-1，1-二甲基脲（DCMU）和放线菌酮（CY）的预处理可抑制这种光依赖性诱导。这些结果表明，光合作用和蛋白质合成活动参与SL的形成。
The significance of light irradiation in Sekiguchi lesion (SL) formation by infection with Magnaporthe grisea on rice cv. Sekiguchi-asahi was investigated. When the leaf blades of cv. Sekiguchi-asahi inoculated with M. grisea spores were kept under different wavelengths of light, SLs were formed under visible light regardless of the compatibility between fungal race and cv. Sekiguchi-asahi. On the contrary, typical blast and/or nectrotic spot lesions were formed under near ultraviolet radiation from the black light fluorescent lamps and near infrared radiation from infrared fluorescent lamps. The effective wavelength for light-dependent SL formation was 400-700 nm. Furthermore, the longer the wavelength of radiation, the bigger were the SLs. Such light-dependent induction of the SL was suppressed by pretreatment of 3-(3,4-dichlorophenyl)-1,1 -dimethylurea (DCMU) and cycloheximide (CY). These results suggested that photosynthetic and protein synthetic activities were involved in SL formation.