Biodiversity of prokaryotic microflora in E1 Golea Salt lake, Algerian Sahara
Biodiversity of prokaryotic microflora in E1 Golea Salt lake, Algerian Sahara
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DOI：
10.1016/j.jaridenv.2003.08.006
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发表时间：
2004-08-01
影响因子：
2.7
通讯作者：
Ollivier, B
中科院分区：
文献类型：
--
作者：
Hacene, H;Rafa, F;Ollivier, B
阿尔及利亚撒哈拉由许多生态系统组成，其中包括微生物多样性尚未被描述的极端环境。对El Golea浅层盐湖的细菌和古细菌群落进行了研究，建立了它们在盐度梯度和废水污染物类型等不同理化特征下的分布。污染与盐度呈负相关。所研究的四个采样点都有微生物种群，它们很好地适应了每个采样点的特定物理和营养条件。从NaCl浓度高达290 g/l的4号取样点分离出极端嗜盐生物，特别是古细菌，而从NaCl浓度为6 ~ 36 g/l的其他3个取样点分离出耐盐细菌。(C) 2003 Elsevier Ltd.版权所有。
The Algerian Sahara consists of numerous ecosystems including extreme environments in which the microbial diversity has not been characterized. We studied the bacterial and archaeal communities in the shallow salt lake of El Golea and established their distribution with respect to different physico-chemical characteristics like salinity gradients and types of wastewater pollutants. Pollution and salinity were negatively correlated. The four sampling sites studied are inhabited by microbial populations well adapted to the specific physical and nutritional conditions of each site. Extreme halophilic organisms, particularly archaea, were recovered from site 4, which contained up to 290 g/l NaCl, whereas halotolerant bacteria were isolated from the three other sampling sites, which contained NaCl concentrations from 6 to 36 g/l. (C) 2003 Elsevier Ltd. All rights reserved.