稻曲病菌侵染过程研究进展

Research Advances in Infection Process of Ustilaginoiden virens

综合评述了近20a来国内外有关稻曲病菌侵染过程的文献。其中,大多数文献认为此病菌厚垣孢子从孕穗期侵入,也有人认为子囊孢子和分生孢子亦可侵染,而且病菌可从芽期和苗期侵染。此外,多数文献报告认为稻曲病菌为局部侵染,但也有几篇文献报告提供了系统侵染的证据。上述研究中,采用的方法包括药剂处理、分期接种、组织解剖、PCR检测等,未见用转基因标记方法研究稻曲病菌侵染过程的报道。

The literatures about infection process of Ustilaginoiden virens in China and abroad in recent 20 years were reviewed.In which,most of literatures indicated that the chlamydospores of Ustilaginoiden virens were infected at booting stage,but some literatures considered the ascospores and conidia can also infect,and the spores generally were infected rice plants at germination stage and seedling stage.Moreover,most researchers believed Ustilaginoiden virens is local infection,but few gave proof of systemic infection.Among all of above literatures,chemical application,inoculation at different stage of rice,tissue anatomy and PCR detection were used,and there was not any literature studied infection process of Ustilaginoiden virens by using transgenic marker at present.