PHYSIOLOGICAL BENEFITS OF MICROBIAL MN OXIDATION

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。锰氧化物在金属和有机物的循环中起着重要的作用，而细菌介导的锰氧化是这些活性锰氧化物的主要来源。许多不同的系统发育和生理类型的细菌已经被证明可以氧化锰，但这些氧化物在细菌生理学中所起的作用和益处还没有确定。我们正在研究氧化锰对紫外线、干燥、机械破坏和噬菌体感染的保护作用。我们想用透射电子显微镜证明细菌产生的锰氧化物是覆盖在细胞表面的。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Mn oxides play an important role in the cycling of metals and organics, and bacterially mediated Mn oxidation is largely the source of these reactive Mn oxides. Many different phylogenetic and physiological types of bacteria have been demonstrated to oxidize Mn, yet the benefit or role these oxides play in bacterial physiology has not been determined. We are investigating the protective effects of Mn oxides to UV light, dessication, mechanical disruption, and phage infection. We would like to show that the Mn oxides produced by the bacteria physically coat the cell by TEM.