Record ID No. |
1906 |
Author(s) |
Yagame T., Yamato M., Suzuki A., Iwase K , 2008 |
Affiliation |
Orchid Museum Takamori, 512-73 Izuhara, Nagano 3993107, JAPAN |
Title |
Ceratobasidiaceae mycorrhizal fungi isolated from nonphotosynthetic orchid Chamaegastrodia sikokiana |
Source. Vol.(no):Page |
Mycorrhiza.18(2):97-101p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
JAPAN, Asia |
Abstracts |
Mycorrhizal fungi were isolated from the non-photosynthetic orchid
Chamaegastrodia sikokiana and identified as members of Ceratobasidiaceae by phylogenetic analysis
of the internal transcribed spacer (ITS) region of ribosomal deoxyribonucleic acid. The ITS
sequences were similar among geographically separated samples obtained from Mt. Kiyosumi in Chiba
Prefecture and Mt. Yokokura in Kochi Prefecture. One of the isolated fungi, KI1-2, formed
ectomycorrhiza on seedlings of Abies firma in pot culture, suggesting that tripartite symbiosis
exists among C. Sikokiana, mycorrhizal fungi, and A. Firma in nature, and carbon compounds are
supplied from A. Firma to C. Sikokiana through the hyphae of the mycorrhizal fungi. To our
knowledge, this is the second study to suggest the involvement of Ceratobasidiaceae fungi in
tripartite symbiosis with achlorophyllous orchids and photosynthetic host plants. |