Citation: A. Vilarino et al., MES [2-(N-MORPHOLINE)-ETHANE SULFONIC-ACID] BUFFER PROMOTES THE GROWTH OF EXTERNAL HYPHAE OF THE ARBUSCULAR MYCORRHIZAL FUNGUS GLOMUS INTRARADICES IN AN ALKALINE SAND, Biology and fertility of soils, 25(1), 1997, pp. 79-81