Jenkins C L, Starr M P
Ann Inst Pasteur Microbiol (1985). 1985 Nov-Dec;136B(3):257-64. doi: 10.1016/s0769-2609(85)80071-5.
Based upon visible electronic absorption spectra and mass spectra, yellow-pigmented strains of Xanthomonas maltophilia, including the type strain (ICPB 2648-67 = ATCC 13637) of this species, were shown to produce aryl-polyene (xanthomonadin) pigments. These pigments, which usually occurred in very small quantities, were isolated and studied as isobutyl derivatives. The most common X. maltophilia pigment (Pigment 1), which occurred in 8 of the 12 yellow-pigmented strains examined, was shown to be a monochlorinated aryl-hexaene, molecular ion (M+) 384, with the empirical formula C23H25O3Cl. Pigment 3, M+ 376, which was found as the major pigment in one strain of X. maltophilia and as a minor component in two other strains, probably is the same non-halogenated aryl-heptaene reported previously in Xanthomonas populi and X. juglandis. Although all of these X. maltophilia strains originated from medical rather than phytopathogenic environments, the occurrence of these xanthomonadin pigments in non-phytopathogenic strains emphasizes the chemotaxonomic significance of these aryl-polyene pigments in the genus Xanthomonas.
基于可见电子吸收光谱和质谱，嗜麦芽窄食单胞菌的黄色色素菌株，包括该物种的模式菌株（ICPB 2648 - 67 = ATCC 13637），被证明能产生芳基多烯（黄单胞菌素）色素。这些通常以极少量存在的色素，被分离出来并作为异丁基衍生物进行研究。在所检测的12株黄色色素菌株中，有8株含有最常见的嗜麦芽窄食单胞菌色素（色素1），它被证明是一种一氯代芳基六烯，分子离子（M+）为384，经验式为C23H25O3Cl。色素3，M+ 376，在一株嗜麦芽窄食单胞菌中作为主要色素被发现，在另外两株中作为次要成分，可能与先前在杨树黄单胞菌和胡桃黄单胞菌中报道的相同的非卤代芳基七烯是同一种物质。尽管所有这些嗜麦芽窄食单胞菌菌株都源自医学环境而非植物致病环境，但这些黄单胞菌素色素在非植物致病菌株中的出现强调了这些芳基多烯色素在黄单胞菌属中的化学分类学意义。
