Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755.
Appl Environ Microbiol. 1993 May;59(5):1688-90. doi: 10.1128/aem.59.5.1688-1690.1993.
Bradyrhizobium japonicum USDA 110 and 61A152 can utilize the hydroxamate-type siderophores ferrichrome and rhodotorulate, in addition to ferric citrate, to overcome iron starvation. These strains can also utilize the pyoverdin-type siderophore pseudobactin St3. The ability to utilize another organism's siderophores may confer a selective advantage in the rhizosphere.
大豆慢生根瘤菌 USDA110 和 61A152 除了能够利用柠檬酸铁外,还可以利用羟肟酸盐型铁载体 ferrichrome 和 rhodotorulate,以及 pyoverdin 型铁载体 pseudobactin St3 来克服缺铁胁迫。这种利用其他生物体 siderophores 的能力可能在根际中赋予了一种选择性优势。