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苜蓿中华根瘤菌的LpxXL蛋白和AcpXL蛋白在苜蓿根瘤内的类菌体发育过程中发挥着重要作用。

The Sinorhizobium meliloti LpxXL and AcpXL proteins play important roles in bacteroid development within alfalfa.

作者信息

Haag Andreas F, Wehmeier Silvia, Beck Sebastian, Marlow Victoria L, Fletcher Vivien, James Euan K, Ferguson Gail P

机构信息

School of Medicine & Dentistry, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, United Kingdom.

出版信息

J Bacteriol. 2009 Jul;191(14):4681-6. doi: 10.1128/JB.00318-09. Epub 2009 May 8.

DOI:10.1128/JB.00318-09
PMID:19429615
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2704725/
Abstract

Free-living Sinorhizobium meliloti lpxXL and acpXL mutants lack lipid A very-long-chain fatty acids (VLCFAs) and have reduced competitiveness in alfalfa. We demonstrate that LpxXL and AcpXL play important but distinct roles in bacteroid development and that LpxXL is essential for the modification of S. meliloti bacteroid lipid A with VLCFAs.

摘要

自由生活的苜蓿中华根瘤菌lpxXL和acpXL突变体缺乏脂多糖A的超长链脂肪酸（VLCFAs），并且在苜蓿中的竞争力降低。我们证明LpxXL和AcpXL在类菌体发育中发挥重要但不同的作用，并且LpxXL对于用VLCFAs修饰苜蓿中华根瘤菌类菌体脂多糖A至关重要。

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本文引用的文献

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Plant gene expression in effective and ineffective root nodules of alfalfa (Medicago sativa).苜蓿（Medicago sativa）有效和无效根瘤中的植物基因表达。
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Essential role for the BacA protein in the uptake of a truncated eukaryotic peptide in Sinorhizobium meliloti.苜蓿中华根瘤菌中BacA蛋白在摄取截短的真核生物肽中的重要作用。
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The Sinorhizobium meliloti MsbA2 protein is essential for the legume symbiosis.苜蓿中华根瘤菌MsbA2蛋白对豆科植物共生至关重要。
Microbiology (Reading). 2008 Apr;154(Pt 4):1258-1270. doi: 10.1099/mic.0.2007/014894-0.
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Genomic organization and evolutionary insights on GRP and NCR genes, two large nodule-specific gene families in Medicago truncatula.蒺藜苜蓿中两个大型根瘤特异性基因家族GRP和NCR基因的基因组组织及进化见解
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BacA-mediated bleomycin sensitivity in Sinorhizobium meliloti is independent of the unusual lipid A modification.苜蓿中华根瘤菌中BacA介导的博来霉素敏感性与异常的脂多糖A修饰无关。
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Eukaryotic control on bacterial cell cycle and differentiation in the Rhizobium-legume symbiosis.真核生物对根瘤菌 - 豆科植物共生中细菌细胞周期和分化的调控。
Proc Natl Acad Sci U S A. 2006 Mar 28;103(13):5230-5. doi: 10.1073/pnas.0600912103. Epub 2006 Mar 17.
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The pea nodule environment restores the ability of a Rhizobium leguminosarum lipopolysaccharide acpXL mutant to add 27-hydroxyoctacosanoic acid to its lipid A.豌豆根瘤环境恢复了豆科根瘤菌脂多糖acpXL突变体向其脂多糖A添加27-羟基二十八烷酸的能力。
J Bacteriol. 2006 Mar;188(6):2126-33. doi: 10.1128/JB.188.6.2126-2133.2006.
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The sulfate transporter SST1 is crucial for symbiotic nitrogen fixation in Lotus japonicus root nodules.硫酸盐转运蛋白SST1对百脉根根瘤中的共生固氮作用至关重要。
Plant Cell. 2005 May;17(5):1625-36. doi: 10.1105/tpc.104.030106. Epub 2005 Apr 1.
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Importance of unusually modified lipid A in Sinorhizobium stress resistance and legume symbiosis.异常修饰的脂多糖A在中华根瘤菌抗逆性和豆科植物共生中的重要性。
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Proc Natl Acad Sci U S A. 2004 Apr 6;101(14):5012-7. doi: 10.1073/pnas.0307137101. Epub 2004 Mar 24.