Spaink H P, Sheeley D M, van Brussel A A, Glushka J, York W S, Tak T, Geiger O, Kennedy E P, Reinhold V N, Lugtenberg B J
Leiden University, Department of Plant Molecular Biology, The Netherlands.
Nature. 1991 Nov 14;354(6349):125-30. doi: 10.1038/354125a0.
In Rhizobium leguminosarum biovar viciae, the nodABC and nodFEL operons are involved in the production of lipo-oligosaccharide signals which mediate host specificity. The structure of these metabolites and those produced in nod mutants links the nodE and nodL genes to specific chemical features of the signal molecules. A nodE-determined, highly unsaturated fatty acid and a nodL-determined O-acetyl substituent are essential for the ability of the signals to induce nodule meristems on the host plant Vicia sativa.
在豌豆根瘤菌蚕豆生物变种中，nodABC和nodFEL操纵子参与脂寡糖信号的产生，这些信号介导宿主特异性。这些代谢产物以及nod突变体中产生的代谢产物的结构将nodE和nodL基因与信号分子的特定化学特征联系起来。由nodE决定的高度不饱和脂肪酸和由nodL决定的O-乙酰取代基对于信号诱导宿主植物蚕豆根瘤分生组织的能力至关重要。
