Ma Chung Research Center for Photosynthetic Pigments (MRCPP) and Department of Chemistry, Universitas Ma Chung, Villa Puncak Tidar N01, Malang 465151, Indonesia.
Department of Coastal Resource Management, Universitas Diponegoro, Jl. Prof. Soedarto Tembalang, Semarang 50275, Indonesia.
Mar Drugs. 2019 Jun 11;17(6):349. doi: 10.3390/md17060349.
strain KJ5 (formerly called sp. strain KJ5) is a yellowish marine bacterium that was isolated from a hard coral in the Karimunjawa Islands, Indonesia. The complete genome sequence of the bacterium has been reported recently. In this study, we examined the carotenoid composition of this bacterium using high-performance liquid chromatography coupled with ESI-MS/MS. We found that the bacterium produced sulfur-containing carotenoids, i.e., caloxanthin sulfate and nostoxanthin sulfate, as the most abundant carotenoids. A new carotenoid zeaxanthin sulfate was detected based on its ESI-MS/MS spectrum. The unique presence of sulfated carotenoids found among the currently known species of the genus were discussed.
菌株 KJ5（以前称为 sp. 菌株 KJ5）是一种从印度尼西亚卡里蒙岛的硬珊瑚中分离出来的黄色海洋细菌。该细菌的全基因组序列最近已被报道。在这项研究中，我们使用高效液相色谱法与 ESI-MS/MS 联用检测了该细菌的类胡萝卜素组成。我们发现该细菌产生了含硫类胡萝卜素，即硫酸钙黄质和硫酸诺卡酮，它们是最丰富的类胡萝卜素。根据 ESI-MS/MS 谱检测到一种新的类胡萝卜素硫酸玉米黄质。讨论了目前已知的属种中存在的独特含硫类胡萝卜素。
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