scholarly journals The Very Long Chain Fatty Acid (C26:25OH) Linked to the Lipid A Is Important for the Fitness of the Photosynthetic Bradyrhizobium Strain ORS278 and the Establishment of a Successful Symbiosis with Aeschynomene Legumes

2017 ◽  
Vol 8 ◽  
Author(s):  
Nicolas Busset ◽  
Flaviana Di Lorenzo ◽  
Angelo Palmigiano ◽  
Luisa Sturiale ◽  
Frederic Gressent ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid A ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Bradyrhizobium Strain ◽  
Long Chain

scholarly journals The influence of the long chain fatty acid on the antagonistic activities of Rhizobium sin-1 lipid A

2007 ◽  
Vol 15 (14) ◽  
pp. 4800-4812 ◽  
Author(s):  
Yanghui Zhang ◽  
Margreet A. Wolfert ◽  
Geert-Jan Boons
Keyword(s):  
Fatty Acid ◽  
Lipid A ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Long Chain

scholarly journals The Lipopolysaccharide Lipid A Long-Chain Fatty Acid Is Important for Rhizobium leguminosarum Growth and Stress Adaptation in Free-Living and Nodule Environments

2017 ◽  
Vol 30 (2) ◽  
pp. 161-175 ◽  
Author(s):  
Dianna V. Bourassa ◽  
Elmar L. Kannenberg ◽  
D. Janine Sherrier ◽  
R. Jeffrey Buhr ◽  
Russell W. Carlson
Keyword(s):  
Fatty Acid ◽  
Rhizobium Leguminosarum ◽  
Lipid A ◽  
Acyl Carrier Protein ◽  
Acyl Chain ◽  
Chain Fatty Acid ◽  
Membrane Properties ◽  
Long Chain Fatty Acid ◽  
Mutant Strains ◽  
Long Chain

Rhizobium bacteria live in soil and plant environments, are capable of inducing symbiotic nodules on legumes, invade these nodules, and develop into bacteroids that fix atmospheric nitrogen into ammonia. Rhizobial lipopolysaccharide (LPS) is anchored in the bacterial outer membrane through a specialized lipid A containing a very long-chain fatty acid (VLCFA). VLCFA function for rhizobial growth in soil and plant environments is not well understood. Two genes, acpXL and lpxXL, encoding acyl carrier protein and acyltransferase, are among the six genes required for biosynthesis and transfer of VLCFA to lipid A. Rhizobium leguminosarum mutant strains acpXL, acpXL−/lpxXL−, and lpxXL− were examined for LPS structure, viability, and symbiosis. Mutations in acpXL and lpxXL abolished VLCFA attachment to lipid A. The acpXL mutant transferred a shorter acyl chain instead of VLCFA. Strains without lpxXL neither added VLCFA nor a shorter acyl chain. In all strains isolated from nodule bacteria, lipid A had longer acyl chains compared with laboratory-cultured bacteria, whereas mutant strains displayed altered membrane properties, modified cationic peptide sensitivity, and diminished levels of cyclic β-glucans. In pea nodules, mutant bacteroids were atypically formed and nitrogen fixation and senescence were affected. The role of VLCFA for rhizobial environmental fitness is discussed.

scholarly journals Biochemical Characterization ofSinorhizobium melilotiMutants Reveals Gene Products Involved in the Biosynthesis of the Unusual Lipid A Very Long-chain Fatty Acid

2011 ◽  
Vol 286 (20) ◽  
pp. 17455-17466 ◽  
Author(s):  
Andreas F. Haag ◽  
Silvia Wehmeier ◽  
Artur Muszyński ◽  
Bernhard Kerscher ◽  
Vivien Fletcher ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid A ◽  
Biochemical Characterization ◽  
Chain Fatty Acid ◽  
Gene Products ◽  
Long Chain Fatty Acid ◽  
Long Chain

scholarly journals Long-chain fatty acid-induced changes in gene expression in neonatal cardiac myocytes

2000 ◽  
Vol 41 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Karin A. J.M. van der Lee ◽  
Michaël M. Vork ◽  
Johan E. De Vries ◽  
Peter H.M. Willemsen ◽  
Jan F.C. Glatz ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acid ◽  
Cardiac Myocytes ◽  
Chain Fatty Acid ◽  
Long Chain Fatty Acid ◽  
Induced Changes ◽  
Long Chain
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