symbiosis

[Peter Herman x5495]

In article <94102409463026 at hugo.fsufay.edu> dhaas at HUGO.FSUFAY.EDU writes:
>I had a student ask an interesting question this AM.  "Are there any plants
>that form mutualistic relationships with both bacteria and fungi at the same
>time?"  I told her that I couldn't give her a specific example but I didn't
>see why it couldn't happen. Does anyone know of examples of this?  Do legumes
>containing Rhizobium also show endo or ecto mycorrhizal associations?
>
>Dave


You are correct in your assumption that legumes can be nodulated by
rhizobia and be mycorrhizal as well.  I know for sure it occurs in
Pisum, Trifolium and Medacago having read papers on all these with
nodules and VAM.  I don't know for sure if Alnus or Myrica and the
other streptomycete symbionts but I would be surprised if it is not
the case


Peter Herman
Biology
New Mexico State Univ.