The Source of “Fairy Rings”: 2-Azahypoxanthine and its Metabolite Found in a Novel Purine Metabolic Pathway in Plants
作者:Jae-Hoon Choi、Toshiyuki Ohnishi、Yasuhiro Yamakawa、Shogo Takeda、Shuhei Sekiguchi、Waki Maruyama、Kimiko Yamashita、Tomohiro Suzuki、Akio Morita、Takashi Ikka、Reiko Motohashi、Yoshikazu Kiriiwa、Hiroyuki Tobina、Tatsuo Asai、Shinji Tokuyama、Hirofumi Hirai、Nobuhiro Yasuda、Keiichi Noguchi、Tomohiro Asakawa、Shimpei Sugiyama、Toshiyuki Kan、Hirokazu Kawagishi
DOI:10.1002/anie.201308109
日期:2014.2.3
members of the purine metabolic pathway in animals, plants, and microorganisms. However, further metabolism of AICA remains elusive. Based on these results and facts, we hypothesized that plants themselves produce AHX and AOH through a pathway similar to the chemical synthesis. Herein, we demonstrate the existence of endogenous AHX and AOH and a novel purine pathway to produce them in plants.
真菌刺激的植物生长的环或弧在世界各地都有发生。这些通常被称为“仙女环”。在2010年,我们发现了2-氮杂y杂黄嘌呤(AHX),它是一种由真菌引起的仙环现象的化合物。AHX刺激了所有测试植物的生长。本文中,我们揭示了植物中AHX的常见代谢物2-氮杂-8-氧代次黄嘌呤(AOH)的分离和结构测定。AHX是由5-氨基咪唑-4-羧酰胺(AICA)化学合成的,AHX可以通过黄嘌呤氧化酶转化为AOH。AICA是动物,植物和微生物中嘌呤代谢途径的成员之一。但是,AICA的新陈代谢仍然难以捉摸。基于这些结果和事实,我们假设植物本身通过类似于化学合成的途径生产AHX和AOH。在此处,