Rhizobium fredii synthesizes an array of lipooligosaccharides, including a novel compound with glucose inserted into the backbone of the molecule
Year: 1996
Type: article
Abstract: Flavonoid cues from the plant host cause symbiotic, nitrogen-fixing rhizobia to synthesize lipochitooligosaccharides (LCOs), which act as return signals to initiate the nodulation process. Rhizobium fredii strain USDA257 is known to produce four LCOs, all substituted with vaccenic acid (C18:1). We show here that a mutant strain can replace vaccenic acid with a C16:0 side chain, and that strain USDA191 synthesizes additional LCOs that differ from one another in the length and unsaturation of their fatty acyl substituents. USADA191 and 257DH4 both produce a novel LCO with glucose substituted for N-acetyl-D-glucosamine in the backbone of the molecule.
Source: FEBS Letters
Language: English
Subfield: Plant Science
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2139205453