Biodiversity of uptake hydrogenase systems from legume endosymbiotic bacteria

被引：15
作者：
Brito, B
Baginsky, C
Palacios, JM
Cabrera, E
Ruiz-Argüeso, T
Imperial, J
机构：
[1] Univ Politecn Madrid, ETS Ingn Agron, Microbiol Lab, E-28040 Madrid, Spain
[2] Univ Chile, Fac Ciencias Agron, Santiago, Chile
[3] CSIC, E-28040 Madrid, Spain
来源：
BIOCHEMICAL SOCIETY TRANSACTIONS | 2005年 / 33卷
关键词：
Azorhizobium; Bradyrhizobium; hup gene; legume; nitrogenase; Rhizobium;
D O I：
10.1042/BST0330033
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Uptake hydrogenases in legume endosymbiotic bacteria recycle hydrogen produced during the nitrogen fixation process in legume nodules. Despite the described beneficial effect on plant productivity, the hydrogen oxidation capability is not widespread in the Rhizobiaceae family. Characterization of hydrogenase gene clusters in strains belonging to Rhizobium, Bradyrhizorbium and Azorhizobium reveals a similar overall genetic organization along with important differences in gene regulation. in addition, phylogenetic analysis of hup genes indicates distinct evolutionary origins for hydrogenase genes in Rhizobia.
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收藏
页码：33 / 35
页数：3
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