Stimulation of Vesicular-Arbuscular Mycorrhizal Fungi by Mycotrophic and Nonmycotrophic Plant Root Systems

Stimulation of vesicular-arbuscular mycorrhizal fungi by mycotrophic and nonmycotrophic plant root systems.

Transformed root cultures of three nonmycotrophic and one mycotrophic plant species stimulated germination and hyphal growth of the vesicular-arbuscular mycorrhizal fungus Glomus etunicatum (Becker & Gerd.) in a gel medium. However, only roots of the mycotrophic species (carrot) supported continued hyphal exploration after 3 to 4 weeks and promoted appressoria formation by G. etunicatum.

Plant coexistence mediated by arbuscular mycorrhizal fungi

Recent research has indicated the importance of arbuscular mycorrhizal fungi (AMF) in mediating plant coexistence. Coarse-scale studies compare the effects of the presence versus absence of AMF on plant coexistence, a phenomenon that is most relevant in early successional ecosystems where AMF are patchily distributed. By contrast, fine-scale studies investigate interactions that might occur onc...

Arbuscular Mycorrhizal Fungi and Alien Plant Species

The invasion success of alien plant species depends, amongst other things, on their functional traits [4] and the susceptibility of ecosystems. There is now increasing interest in including biotic interactions particularly mutualistic associations [5], into frameworks assessing alien plant invasions, as they help bridge the invisibility and invasiveness features. The great majority of terrestri...

Occurrence of Vesicular-Arbuscular Mycorrhizal Fungi in Alberta, Canada

S. M. Boyetchko* and J. P. Tewari Department of Plant Science, University of Alberta, Edmonton, Alberta, Canada T 6 G 2 P 5 Z. Naturforsch. 48c , 923-929 (1993); received April 6,1993 Vesicular-Arbuscular Mycorrhizae, Taxonomy, Calcium, X-Ray Microanalysis Three VA mycorrhizal fungal species were isolated from soils in Alberta, Canada and ex­ amined by scanning electron microscopy and energy-di...

Nitrate reducing capacity of two vesicular-arbuscular mycorrhizal fungi.