Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1371/journal.pone.0189957 |
Ectomycorrhizal fungal communities in endangered Pinus amamiana forests | |
Murata, Masao1; Kanetani, Seiichi2; Nara, Kazuhide1 | |
通讯作者 | Murata, Masao |
来源期刊 | PLOS ONE
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ISSN | 1932-6203 |
出版年 | 2017 |
卷号 | 12期号:12 |
英文摘要 | Interactions between trees and ectomycorrhizal (ECM) fungi are critical for the growth and survival of both partners. However, ECM symbiosis in endangered trees has hardly been explored, complicating conservation efforts. Here, we evaluated resident ECM roots and soil spore banks of ECM fungi from endangered Pinus amamiana forests on Yakushima and Tanegashima Islands, Kagoshima Prefecture, Japan. Soil samples were collected from remaining four forests in the two islands. The resident ECM roots in soil samples were subjected to molecular identification. Soil spore banks of ECM fungi were analyzed via bio-assays using a range of host seedlings (P. amamiana, P. parviflora, P. densiflora and Castanopsis sieboldii) for 6 +/- 8 months. In all remaining P. amamiana forests, we discovered a new Rhizopogon species (Rhizopogon sp. 1), the sequence of which has no match amoung numerous Rhizopogon sequences deposited in the international sequence database. Host identification of the resident ECM roots confirmed that Rhizopogon sp. 1 was associated only with P. amamiana. Rhizopogon sp. 1 was far more dominant in soil spore banks than in resident ECM roots, and its presence was confirmed in nearly all soil samples examined across the major remaining populations. While Rhizopogon sp. 1 did not completely lose compatibility to other pine species, its infection rate in the bioassays was highest in the original host, P. amamiana, the performance of which was improved by the infection. These results indicate that Rhizopogon sp. 1 is very likely to have a close ecological relationship with endangered P. amamiana, probably due to a long co-evolutionary period on isolated islands, and to play the key role in seedling establishment after disturbance. We may need to identify and utilize such key ECM fungi to conserve endangered trees practically. |
类型 | Article |
语种 | 英语 |
国家 | Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000418554900042 |
WOS关键词 | SCALE GENETIC-STRUCTURE ; SOIL PROPAGULE BANKS ; PRIMARY SUCCESSION ; RESISTANT PROPAGULES ; SPORE BANKS ; SEEDLING ESTABLISHMENT ; CENOCOCCUM-GEOPHILUM ; MYCORRHIZAL NETWORKS ; VOLCANIC DESERT ; RHIZOPOGON |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201687 |
作者单位 | 1.Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba, Japan; 2.Kyushu Res Ctr, Forestry & Forest Prod Res Inst, Chuo Ku, Kumamoto, Japan |
推荐引用方式 GB/T 7714 | Murata, Masao,Kanetani, Seiichi,Nara, Kazuhide. Ectomycorrhizal fungal communities in endangered Pinus amamiana forests[J],2017,12(12). |
APA | Murata, Masao,Kanetani, Seiichi,&Nara, Kazuhide.(2017).Ectomycorrhizal fungal communities in endangered Pinus amamiana forests.PLOS ONE,12(12). |
MLA | Murata, Masao,et al."Ectomycorrhizal fungal communities in endangered Pinus amamiana forests".PLOS ONE 12.12(2017). |
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