The diversity of mycorrhizal fungi in Japanese Cephalanthera species

被引:3
|
作者
Sakamoto, Yuki [1 ]
Yamazaki, Jun [2 ]
Yamada, Takayuki [3 ]
Yokoyama, Jun [4 ]
Ogura-Tsujita, Yuki [5 ]
Maki, Masayuki [1 ]
机构
[1] Tohoku Univ, Bot Gardens, Aoba Ku, Kawauchi 12-2, Sendai, Miyagi 9800862, Japan
[2] Tamagawa Univ, Coll Agr, Tamagawagakuen 6-1-1, Machida, Tokyo 1948610, Japan
[3] Natl Museum Nat & Sci, Ctr Mol Biodivers Res, Amakubo 4-1-1, Tsukuba, Ibaraki 3050005, Japan
[4] Yamagata Univ, Dept Sci, Kojirakawa 1-4-12, Yamagata 9908560, Japan
[5] Saga Univ, Dept Agr, Honjo Machi 1, Saga 8408502, Japan
关键词
Cephalanthera subaphylla; ectomycorrhizal fungi; orchid; symbiosis; thelephoraceae; NONPHOTOSYNTHETIC INDIVIDUALS; MYCOHETEROTROPHIC ORCHIDS; FALCATA ORCHIDACEAE; SPECIFICITY; GERMINATION; ASSOCIATE; NEOTTIEAE; GREEN;
D O I
10.1111/1442-1984.12124
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The diversity of mycorrhizal fungi among four Japanese Cephalanthera (Orchidaceae) species was examined at a total of seven sites, based on sequence variation in nuclear ribosomal DNA. This is the first report to detect mycorrhizal fungi in C. subaphylla. Two patterns of mycorrhizal associations were confirmed from our results. C. falcata has lower fungal specificity, associating with Russulaceae, Sebacinales and Thelephoraceae. By contrast, the three Cephalanthera species C. erecta, C. subaphylla, and C. longifolia were associated mainly with Thelephoraceae fungi. There is no large difference found in mycobionts between green and albino individuals of C. falcata and no distinct preference of Japanese Cephalanthera species for a specific fungal group of Thelephoraceae. Symbiotic mycorrhizal fungi were examined in four Japanese Cephalanthera. Two patterns of mycorrhizal associations were confirmed in the Cephalanthera. The Cephalanthera have no specific preferences to the symbiotic Thelephoraceae.
引用
收藏
页码:81 / 86
页数:6
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