Experimental systems for measuring nutrient transport by arbuscular mycorrhizal (AM) fungi
in soil are described. The systems generally include two soil compartments that are …

A central assumption of ecosystem N cycling has been that organic N must be converted to
inorganic N to be available for plant uptake, but this has been questioned by recent studies …

Both the plant and the fungus benefit nutritionally in the arbuscular mycorrhizal symbiosis:
The host plant enjoys enhanced mineral uptake and the fungus receives fixed carbon. In this …

To investigate the impact of organic N compounds for inorganic nitrogen uptake in the
rhizosphere, we fed ammonium nitrate with or without amino acids (ie, glutamine or …

During the vegetation periods 1994 and 1995, net uptake of nitrate and ammonium by roots
of adult spruce (Picea abies (L.) Karst) and beech (Fagus sylvatica L.) trees was studied at a …

This review brings together recent work on the coordination of transport processes between
fungus and plant symbionts in arbuscular mycorrhizal (AM) symbioses, and focuses on new …

Depending on the species, nitrogen may be reduced either by symbiosis with bacteria
(legumes, see Chap. 3.1), directly after root uptake from the soil (see Chap. 2), or after xylem …

Amino acids are emerging as a critical component of the terrestrial N cycle, yet there is little
understanding of amino acid cycling in temperate forests. This research studied the uptake …

Ectomycorrhizas are symbiotic assoclatlOns between woody plant roots, mainly trees, and
fungi that form spontaneously in natural conditions and contribute to host growth. The …

Plant nutrients, with the exception of nitrogen, are ultimately derived from weathering of
primary minerals. Traditional theories about the role of ectomycorrhizal fungi in plant …