Increased sporulation of vesicular-arbuscular mycorrhizal fungi by manipulation of nutrient regimens
1990
Douds, D.D. Jr | Schenck, N.C.
Adjustment of pot culture nutrient solutions increased root colonization and sporulation of vesicular-arbuscular mycorrhizal (VAM) fungi. Paspalum notatum Flugge and VAM fungi were grown in a sandy soil low in N and available P. Hoagland nutrient solutions without P enhanced sporulation in soil and root colonization of Acaulospora longula, Scutellospora heterogama, Gigasopora margarita, and wide range of other VAM fungi over levels produced by a tap water control or nutrient solutions containing P. However, Glomus intraradices produced significantly more spores in plant roots in the tap water control treatment. The effect of the nutrient solutions was not due solely to N nutrition, because the addition of NH4NO3 decreased both colonization and sporulation by G. margarita relative to levels by Hoagland solution without P.
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