CAJ | 학술논문

[目的]探讨禾长蠕孢菌（HGE）孢子及其代谢产物粗毒素对稗草防御酶系活性的影响。[方法]在室内条件下测定了禾长蠕孢菌孢子及其粗毒素对稗草防御酶系活性的影响。[结果]HGE菌孢子、粗毒素及二者混合处理稗草后，不同程度地影响了的稗草的PAL、POD的活性，对稗草SOD活性无明显影响，而且孢子和毒素对稗草防御酶系的影响具有相似性。[结论]由于病原真菌孢子和毒素对寄主的作用具有一定的相似性，基于病原菌的致病过程的复杂性，毒素可以替代病原菌研究其部分致病性作用机理。
[목적]탐토화장연포균（HGE）포자급기대사산물조독소대패초방어매계활성적영향。[방법]재실내조건하측정료화장연포균포자급기조독소대패초방어매계활성적영향。[결과]HGE균포자、조독소급이자혼합처리패초후，불동정도지영향료적패초적PAL、POD적활성，대패초SOD활성무명현영향，이차포자화독소대패초방어매계적영향구유상사성。[결론]유우병원진균포자화독소대기주적작용구유일정적상사성，기우병원균적치병과정적복잡성，독소가이체대병원균연구기부분치병성작용궤리。
[Objective] This study aimed to explore the effects of spores and crude toxins of Helminthosporium gramineum Rabenh f. sp. echinochloae(HGE) on the ac- tivity of defensive enzymes of barnyardgrass [Echinochloa crus-galli (L.) Beauv.]. [Method] The effects of spores and crude toxins of HGE, as well as the mixture of spores and crude toxins on the activity of defensive enzymes in barnyardgrass were determined under laboratory conditions. [Result] Spores and crude toxins of HGE had varying degrees of effects on PAL and POD activity, and no obvious effect on SOD activity in barnyardgrass. In addition, spores and toxins had some similar im- pacts on the defensive enzymes in barnyardgrass. [Conclusion] Since toxins have similar effects on the hosts as spores of fungal pathogen do, they can be a substi- tute for the fungal pathogen in studying the partial pathogenic mechanism of this pathogen due to its complexity in pathogenic process.