Mycorrhizal fungi in Pseudotsuga menziesii introduced in Central Patagonia (Argentina)

Carolina Barroetaveña (1), Efrén Cázares (2), Mario Rajchenberg (1)

1 Centro de Investigación y Extensión Forestal Andino Patagónico, C.C. 14 (9200), Esquel, Chubut, Argentina.

2 Department of Forest Science, Oregon State University, Corvallis, OR 97331, USA.

(to be published soon)


A study to survey the ectomycorrhizal fungal richness in Douglas fir (Pseudotsuga menziesii) plantations and nurseries in Patagonia (Argentina) was conducted. Eight plantations and five nurseries were sampled for hypogeous and epigeous fungi during four years. Amphinema byssoides, Hymenogaster subalpinus, Hysterangium coriaceum, Radiigera taylorii, Suillus lakei and Tomentella atramentaria were found exclusively in plantations. Laccaria tortilis, Tuber californicu and Tuber borchii were found exclusively in nurseries and Endogone lactiflua, Hebeloma hiemale, H. mesophaeum, Inocybe kauffmanii, Rhizopogon villosulus and Thelephora terrestris were found on both nurseries and plantations. Overall, fifteen introduced mycorrhizal species were found. Rhizopogon villosulus and H. mesophaeum were the most widely distributed in plantations, therefore becoming potential candidates species that could be use in mycorrhizal fungi inoculation programs for Douglas fir.

Key words: Douglas fir, ectomycorrhizal fungi, nurseries, plantations.

Two tables, one with a review of the ectomycorrhizal species registered in Douglas fir native forests (Appendix 1) and the other with a review of the ectomycorrhizal species detected in Douglas fir plantations in other parts of the world (Appendix 2) are presented.