摘要
黑色素是一类生物聚合分子的总称,不同来源的黑色素种类不同,其中报道较多的是DOPA黑色素和DHN黑色素。DOPA黑色素和DHN黑色素具有相似的理化性质但其合成底物和途径不同。DHN黑色素在植物病原真菌中广泛存在,与病原菌致病能力密切相关。病原菌侵染寄主时黑色素沉积在附着胞细胞壁的内层,防止了形成膨压的溶质渗透到细胞外,产生很大的机械压力,保证病原菌侵入寄主。结合作者的研究结果综述了黑色素的种类、性质及黑色素与病原菌致病性关系等方面的研究进展。
Melanin is formed by oxidative polymerization of phenolic compounds , basically different kinds of melanin come from different organisms. DOPA melanin and DHN melanin have same physical and chemical characters although they have different biosynthetic pathway. DttN melanin is common in plant fungi and plays an important role on infcetion. The melanin accumulates in the fungal cell walls and prevents organic and inorganic molecules penetrating out, that insures appressorium＇s pressure and infection ability. This paper has reviewed the kinds and characters, especially discussed the role of melanin during pathogen infection based on our some research.
出处
《微生物学通报》
CAS
CSCD
北大核心
2006年第1期154-158,共5页
Microbiology China
基金
国家自然科学基金项目(No.30471126)
河北省自然科学基金项目(No.303208)
关键词
黑色素
附着胞
侵染能力
致病性
Melanin , Appressorium , Infection ability, Pathogenicity
