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Articles of Significant Interest Selected from This Issue by the Editors

机译：编辑从本期中精选的重要文章

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Filamentous bacteria capable of transmitting electricity across centimeter-scale distances have recently been discovered in marine sediments. Using microsensor profiling, Malkin and Meysman (p. 948956) demonstrated that these cable bacteria can interact with a photosynthetic biofilm in a salt marsh sediment. Oxygen produced by the biofilm during photosynthesis caused cable bacteria to immediately increase sulfide oxidation down to a depth of several centimeters within the sediment. Additionally, a behavioral response of cable bacteria was revealed on the time scale of hours, suggesting that these bacteria have the capacity to sense and respond to changes in their redox environment.The lipopolysaccharide (LPS) of proteobacteria has shown important antigenic properties and several protective functions. However, the role of LPS in cell-cell interactions is not fully understood. Studies by Russo et al. (p. 10131023) show that the exposed portion of the Rhizobium leguminosarum LPS, i.e., the O-antigen core moiety, is crucial for intimate and lateral contacts between bacterial cells and for the formation of compact biofilm structures on both abiotic and biotic surfaces. These observations may have interesting implications in the interplay between the exposed portion of the LPS and other extracellular factors involved in biofilm formation.
机译：最近在海洋沉积物中发现了能够在几厘米范围内传输电的丝状细菌。使用微传感器分析，Malkin和Meysman（p。948956）证明了这些电缆细菌可以与盐沼沉积物中的光合作用生物膜相互作用。生物膜在光合作用过程中产生的氧气导致电缆细菌立即将硫化物的氧化作用增加到沉淀物中几厘米的深度。此外，在数小时的时间尺度上揭示了电缆细菌的行为反应，表明这些细菌具有感知和响应其氧化还原环境变化的能力。蛋白细菌的脂多糖（LPS）具有重要的抗原特性和多种保护作用职能。但是，LPS在细胞间相互作用中的作用尚不完全清楚。 Russo等人的研究。 （p。10131023）显示豆科根瘤菌LPS的裸露部分，即O-抗原核心部分，对于细菌细胞之间的紧密和横向接触以及在非生物和生物表面上形成致密的生物膜结构至关重要。这些观察结果可能对LPS的暴露部分与其他参与生物膜形成的细胞外因子之间的相互作用产生有趣的影响。

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