Plant Pathology Department, University of Florida, Gainesville, Florida 32611.
Appl Environ Microbiol. 1990 Feb;56(2):413-8. doi: 10.1128/aem.56.2.413-418.1990.
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 solution without P enhanced sporulation in soil and root colonization of Acaulospora longula, Scutellospora heterogama, Gigaspora margarita, and a 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 NH(4)NO(3) decreased both colonization and sporulation by G. margarita relative to levels produced by Hoagland solution without P.
调整盆栽营养液增加了丛枝菌根（VAM）真菌的根系定殖和孢子形成。在 N 和有效 P 含量低的沙质土壤中种植帕氏狗尾草和 VAM 真菌。Hoagland 营养液不含 P 时，可促进土壤中孢子形成和 Acaulospora longula、Scutellospora heterogama、Gigaspora margarita 的根系定殖，以及其他广泛的 VAM 真菌的定殖，其水平高于自来水对照或含有 P 的营养液产生的水平。然而，在自来水中对照处理中，根内球囊霉产生的孢子数量明显多于其他处理。营养液的作用不仅仅是由于 N 营养，因为添加 NH4NO3 使 G. margarita 的定殖和孢子形成相对于 Hoagland 无 P 溶液的水平都减少了。
