Co2+ interaction with Azospirillum brasilense Sp7 cells: a 57Co emission Mossbauer spectroscopic study

被引：3
|
作者：
Kamnev, Alexander A. [1 ]
Tugarova, Anna V. [1 ]
Biro, Borbala [2 ]
Kovacs, Krisztina [3 ]
Homonnay, Zoltan [3 ]
Kuzmann, Erno [3 ]
Vertes, Attila [3 ]
机构：
[1] Russian Acad Sci, Inst Biochem & Physiol Plants & Microorganisms, Saratov 410049, Russia
[2] Hungarian Acad Sci, Res Inst Soil Sci & Agr Chem, H-1025 Budapest, Hungary
[3] Eotvos Lorand Univ, Inst Chem, H-1512 Budapest, Hungary
来源：
HYPERFINE INTERACTIONS | 2012年 / 206卷 / 1-3期
关键词：
Cobalt(II) metabolism; Azospirillum brasilense; Co-57 emission Mossbauer spectroscopy;
D O I：
10.1007/s10751-012-0572-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Preliminary Co-57 emission Mossbauer spectroscopic data were obtained for the soil bacterium Azospirillum brasilense Sp7 ( T = 80 K) in frozen Co-57(2+)-containing suspensions and in their dried residues. The Mossbauer parameters were compared with those for A. brasilense strain Sp245 differing from strain Sp7 by ecological behaviour. Live cells of both strains showed metabolic transformations of Co-57(2+) within an hour. Differences in the parameters observed for the two strains under similar conditions suggest dissimilarities in their metabolic response to Co2+.
引用
收藏
页码：91 / 94
页数：4
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