Labilibaculum manganireducens gen. nov., sp. nov. and Labilibaculum filiforme sp. nov., Novel Bacteroidetes Isolated from Subsurface Sediments of the Baltic Sea.
Labilibaculum manganireducens gen. nov., sp. nov. and Labilibaculum filiforme sp. nov., Novel Bacteroidetes Isolated from Subsurface Sediments of the Baltic Sea.
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DOI：
10.3389/fmicb.2017.02614
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发表时间：
2017
影响因子：
5.2
通讯作者：
Cypionka H
中科院分区：
文献类型：
--
作者：
Vandieken V;Marshall IPG;Niemann H;Engelen B;Cypionka H
深层地下沉积物中的微生物群落受到有机基质数量和质量随深度下降的挑战。在波罗的海的沉积物中，它们可能还必须科普在过去9000年中从上覆水向下扩散的离子造成的盐度增加。在这里，我们报告的分离和表征的拟杆菌从14-52米深的海底（mbsf）的波罗的海沉积物中采样的国际海洋发现计划（IODP）远征347。基于生理、化学分类和基因型特征，我们提出这四个菌株代表Marinifilaceae中一个新属的两个新种，建议命名为Labilibaculum manganirecens gen. nov.，sp. nov.（模式菌株59.10- 2 MT）和丝状唇杆菌（Labilibaculum filiforme sp. nov.）（模式菌株59.16BT）以及该物种的其他菌株（59.10- 1 M和60.6M）。这两个模式菌株的基因组草图大小分别为5.2和5.3 Mb，反映了它们的主要生理功能。这些菌株具有滑行运动性，耐冷、耐盐、耐高温。通过单糖和二糖以及丙酮酸盐、乳酸盐和甘油的发酵生长进行了观察。在葡萄糖发酵过程中，少量的电子当量被转移到Fe（III）的所有菌株，而菌株之一也减少锰（IV）。因此，这四种菌株将已知还原金属的原核生物的系统发育范围扩大到拟杆菌属。耐盐性和金属还原可能都有利于生存在波罗的海的深层地下沉积物。
Microbial communities in deep subsurface sediments are challenged by the decrease in amount and quality of organic substrates with depth. In sediments of the Baltic Sea, they might additionally have to cope with an increase in salinity from ions that have diffused downward from the overlying water during the last 9000 years. Here, we report the isolation and characterization of four novel bacteria of the Bacteroidetes from depths of 14–52 m below seafloor (mbsf) of Baltic Sea sediments sampled during International Ocean Discovery Program (IODP) Expedition 347. Based on physiological, chemotaxonomic and genotypic characterization, we propose that the four strains represent two new species within a new genus in the family Marinifilaceae, with the proposed names Labilibaculum manganireducens gen. nov., sp. nov. (type strain 59.10-2MT) and Labilibaculum filiforme sp. nov. (type strains 59.16BT) with additional strains of this species (59.10-1M and 60.6M). The draft genomes of the two type strains had sizes of 5.2 and 5.3 Mb and reflected the major physiological capabilities. The strains showed gliding motility, were psychrotolerant, neutrophilic and halotolerant. Growth by fermentation of mono- and disaccharides as well as pyruvate, lactate and glycerol was observed. During glucose fermentation, small amounts of electron equivalents were transferred to Fe(III) by all strains, while one of the strains also reduced Mn(IV). Thereby, the four strains broaden the phylogenetic range of prokaryotes known to reduce metals to the group of Bacteroidetes. Halotolerance and metal reduction might both be beneficial for survival in deep subsurface sediments of the Baltic Sea.
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影响因子：
64.8
作者：
KOVACS, N
通讯作者：
KOVACS, N
DOI：
10.1073/pnas.0409727102
发表时间：
2005-02-15
影响因子：
11.1
作者：
Konstantinidis, KT;Tiedje, JM
通讯作者：
Tiedje, JM
影响因子：
4.4
作者：
Kool, Dorien M.;Zhu, Baoli;Damste, Jaap S. Sinninghe
通讯作者：
Damste, Jaap S. Sinninghe
影响因子：
2.9
作者：
Hardisty, Dalton S.;Riedinger, Natascha;Lyons, Timothy W.
通讯作者：
Lyons, Timothy W.
影响因子：
4.4
作者：
Dong, Yiran;Sanford, Robert A.;Fouke, Bruce W.
通讯作者：
Fouke, Bruce W.