the cps from 5-day-old cultures , its corresponding oligosaccharide fragments , and the oligosaccharide fragments of eps from 5-day-old cultures , all at a concentration of 2.5 micrograms per seedling , stimulated infection thread formation in root hairs of clover seedlings inoculated with r. trifolii 0403 .
C0028959
oligosaccharide
C0032594
eps