Displacement of an herbaceous plant species community by mycorrhizal and non-mycorrhizal Gmelina arborea, an exotic tree, grown in a microcosm experiment.

Gmelina arborea Roxb. (Gmelina, Yemane) is a fast growing tree, native from India and considered as a potentially invasive woody plant in West Africa. Mycorrhizal inoculation of seedlings with Glomus intraradices was performed to study (1) the effect on the growth of G.

Long-term viability and infectivity of intraradical forms of Glomus intraradices vesicles encapsulated in alginate beads.

Intraradical vesicles of Glomus intraradices were isolated, entrapped in alginate beads, and stored at 4 degrees C for periods from 2-74 months. The beads were used to inoculate leeks grown under standard conditions for 6 wk, then development of root colonization by G. intraradices was recorded.