Miller K J, Gore R S, Benesi A J
Department of Food Science, Pennsylvania State University, University Park 16802.
J Bacteriol. 1988 Oct;170(10):4569-75. doi: 10.1128/jb.170.10.4569-4575.1988.
The synthesis of periplasmic cyclic beta-1,2-glucans is a property unique to species of the family Rhizobiaceae. For this reason, it is generally believed that these molecules may play an important role in the plant infection process. In the present study, we determined that the cyclic beta-1,2-glucans produced by Rhizobium meliloti 1021 were predominantly anionic in character and contained both phosphoglycerol and succinic acid substituents. In addition, we demonstrated that phosphatidylglycerol was the source of the phosphoglycerol substituents present on these oligosaccharides and that greater than 60% of the total phospholipid turnover in this organism involved this substitution reaction.
周质环状β-1,2-葡聚糖的合成是根瘤菌科物种所独有的特性。因此，人们普遍认为这些分子可能在植物感染过程中发挥重要作用。在本研究中，我们确定了苜蓿根瘤菌1021产生的环状β-1,2-葡聚糖主要呈阴离子特性，并且含有磷酸甘油和琥珀酸取代基。此外，我们证明磷脂酰甘油是这些寡糖上磷酸甘油取代基的来源，并且该生物体中超过60%的总磷脂周转涉及这种取代反应。
