Richardson W H, Schmidt T M, Nealson K H
Department of Chemistry, San Diego State University, California 92812.
Appl Environ Microbiol. 1988 Jun;54(6):1602-5. doi: 10.1128/aem.54.6.1602-1605.1988.
The entomopathogenic bacterium Xenorhabdus luminescens produces a red pigment and an antibiotic in insect carcasses in which it grows and in axenic cultures. The pigment was purified and identified as the anthraquinone derivative 1,6-dihydroxy-4-methoxy-9,10-anthraquinone, which exhibits a pH-sensitive color change, i.e., it is yellow below pH 9 and red above pH 9. The antibiotic was also purified and identified as the hydroxystilbene derivative 3,5-dihydroxy-4-isopropylstilbene.
昆虫病原细菌发光光杆状菌在其生长的昆虫尸体以及无菌培养物中产生一种红色色素和一种抗生素。该色素经纯化后被鉴定为蒽醌衍生物1,6 - 二羟基 - 4 - 甲氧基 - 9,10 - 蒽醌，它呈现出对pH敏感的颜色变化，即在pH值低于9时为黄色，高于9时为红色。抗生素也经纯化后被鉴定为羟基芪衍生物3,5 - 二羟基 - 4 - 异丙基芪。
