Studies on fungi in the root region

Summary Data are given on the fungi isolated from 30-day-old adventitious roots and seedling roots of severalAllium species by means of the root-washing technique. These fungi were typical root-surface forms includingCylindrocarpon, Fusarium, and sterile forms. The amount of root colonization observed, however, was not so great as with other higher plant roots.The nature and role of bulb surface contaminants is discussed in relation to the colonization of young roots, and is compared with the role of seed-coat contaminants in such colonization.