Zellner G, Kneifel H, Winter J
Department of Microbiology, University of Regensburg, Federal Republic of Germany.
Appl Environ Microbiol. 1990 Jul;56(7):2228-33. doi: 10.1128/aem.56.7.2228-2233.1990.
Desulfovibrio vulgaris Marburg, "Desulfovibrio simplex" XVI, and Desulfovibrio sp. strain MP47 used benzaldehydes such as vanillin, 3,4,5-trimethoxybenzaldehyde, protocatechualdehyde, syringaldehyde, p-anisaldehyde, p-hydroxybenzaldehyde, and 2-methoxybenzaldehyde as electron donors for sulfate reduction and carbon dioxide and/or components of yeast extract as carbon sources for cell synthesis. The aldehydes were oxidized to their corresponding benzoic acids. The three sulfate reducers oxidized up to 7 mM vanillin and up to 4 mM p-anisaldehyde. Higher concentrations of vanillin or p-anisaldehyde were toxic. In addition, pyridoxal hydrochloride and o-vanillin served as electron donors for sulfate reduction. Salicylaldehyde, pyridine-2-aldehyde, pyridine-4-aldehyde, and 4-hydroxy-3-methoxybenzylalcohol were not oxidized. No molecular hydrogen was detected in the gas phase. The oxidized aldehydes were not further degraded.
普通脱硫弧菌马尔堡菌株、“简单脱硫弧菌”十六型菌株以及脱硫弧菌属MP47菌株利用香兰素、3,4,5 -三甲氧基苯甲醛、原儿茶醛、丁香醛、对茴香醛、对羟基苯甲醛和2 -甲氧基苯甲醛等苯甲醛作为电子供体进行硫酸盐还原，并利用二氧化碳和/或酵母提取物的成分作为细胞合成的碳源。醛类被氧化为相应的苯甲酸。这三种硫酸盐还原菌可氧化高达7 mM的香兰素和高达4 mM的对茴香醛。更高浓度的香兰素或对茴香醛具有毒性。此外，盐酸吡哆醛和邻香兰素可作为硫酸盐还原的电子供体。水杨醛、吡啶 - 2 -醛、吡啶 - 4 -醛和4 -羟基 - 3 -甲氧基苄醇未被氧化。在气相中未检测到分子氢。被氧化的醛类未进一步降解。
