Lactarius indigo and L. deliciosus form mycorrhizae with Eurasian or Neotropical Pinus species

Díaz, G.; Flores, R., & Honrubia, M. (2007) Lactarius indigo and L. deliciosus form mycorrhizae with Eurasian or Neotropical Pinus species.

Sydowia 59 (1): 32 - 45.

Nine new ectomycorrhizal associations between Lactarius indigo from Guatemala and the Eurasian pines Pinus halepensis, P. nigra, P. pinaster and P . sylvestris and between L. deliciosus from Spain and the Neotropical P. ayacahuite, P.hartwegii, P. oocarpa, P. rudis and P. pseudostrobus were obtained for the first time by in vivo synthesis under controlled conditions. Seedlings were inoculated with mycelial inoculum of Lactarius species obtained by culturing them in semiliquid BAF medium. Morphological and anatomical characteristics of each combination are described. L. indigo and L. deliciosus mycorrhizae showed some similar features. They were yellowish or saffron to cinnamon when young, with a net of laticifers visible through mantle, secreting orange latex when injured and with plectenchymatous mantle. Cystidia-like emanating hyphae were observed on the mantle surface of young mycorrhizae.

Keywords: ectomycorrhiza, mycorrhiza description, shynthesis, edible fungi.