作者:Robin E. Mitchell
DOI:10.1016/s0031-9422(00)85028-1
日期:1984.4
phytopathogenic bacterium Pseudomonas syringae pv. atropurpurea have been investigated. In addition to coronatine as previously reported, a new compound was discovered. This gave a mass spectral fragmentation pattern which indicated that it was, like coronatine, an amide of coronafacic acid. Acid-hydrolysis of the new toxin liberated the amino acid valine. This observation, together with mass spectral and NMR
摘要 植物病原菌丁香假单胞菌 (Pseudomonas syringae pv.) 液体培养物中的变色诱导化合物。已经对 atropurpurea 进行了研究。除了之前报道的coronatine之外,还发现了一种新化合物。这给出了质谱碎裂模式,表明它与冠酸类似,是冠酸的酰胺。新毒素的酸水解释放出氨基酸缬氨酸。这一观察结果与质谱和核磁共振数据一起确定了新毒素的结构,即 N-coronafacoylvaline。讨论了对生物合成的一些影响。除了这两种诱导萎黄病的化合物外,还从生长培养基中分离出无生物学活性的冠酸。