Growth of Pseudomonas mendocina on Fe(III) (hydr)Oxides

被引：45
|
作者：
Hersman, LE
Forsythe, JH
Ticknor, LO
Maurice, PA
机构：
[1] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA
[2] Los Alamos Natl Lab, Decis Applicat Div, Los Alamos, NM 87545 USA
[3] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA
来源：
APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2001年 / 67卷 / 10期
关键词：
D O I：
10.1128/AEM.67.10.4448-4453.2001
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Although iron (Fe) is an essential element for almost all living organisms, little is known regarding its acquisition from the insoluble Fe(III) (hydr)oxides in aerobic environments. In this study a strict aerobe, Pseudomonas mendocina, was grown in batch culture with hematite, goethite, or ferrihydrite as a source of Fe. P. mendocina obtained Fe from these minerals in the following order: goethite > hematite > ferrihydrite. Furthermore, Fe release from each of the minerals appears to have occurred in excess, as evidenced by the growth of P. mendocina in the medium above that of the insoluble Fe(III) (hydr)oxide aggregates, and this release was independent of the mineral's surface area. These results demonstrate that an aerobic microorganism was able to obtain Fe for growth from several insoluble Fe minerals and did so with various growth rates.
引用
收藏
页码：4448 / 4453
页数：6
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