Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11284-017-1456-1 |
Soil spore banks of ectomycorrhizal fungi in endangered Japanese Douglas-fir forests | |
Murata, Masao; Nagata, Yuki; Nara, Kazuhide | |
通讯作者 | Murata, Masao |
来源期刊 | ECOLOGICAL RESEARCH
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ISSN | 0912-3814 |
EISSN | 1440-1703 |
出版年 | 2017 |
卷号 | 32期号:4页码:469-479 |
英文摘要 | Interactions between trees and ectomycorrhizal fungi are critical to the growth and survival of both partners. However, ectomycorrhizal symbiosis has barely been explored in endangered trees, and no information is available regarding soil spore banks of ectomycorrhizal fungi from forests of threatened trees. Here, we evaluated soil spore banks of ectomycorrhizal fungi from endangered Japanese Douglas-fir (Pseudotsuga japonica) forests using bioassay approaches with congeneric P. menziesii and Pinus densiflora seedlings in combination with molecular identification techniques. Rhizopogon togasawariana was predominant in soil propagule banks and was found in all remaining P. japonica forests when assayed with P. menziesii, while no colonization of this fungus was observed on Pinus seedlings. Given the observed specificity of R. togasawariana for P. menziesii and its phylogenetic position within the Pseudotsuga-specific Rhizopogon lineage, its geographical distribution is likely restricted to the remaining Japanese Douglas-fir forests, indicating a high extinction risk for this fungus as well as its endangered host. Spore banks of R. togasawariana remained highly infective after preservation for 1 year or heat treatment at 70 A degrees C, suggesting an ecological strategy of establishing ectomycorrhizal associations on regenerating Japanese Douglas-fir seedlings after disturbance, as observed in other Rhizopogon-Pinaceae combinations. Therefore, the regeneration of Japanese Douglas-fir seedlings may depend largely on the soil spore banks dominated by R. togasawariana, which has co-evolved with the Japanese Douglas-fir for over 30 million years. More attention must be paid to underground ectomycorrhizal fungi for the conservation of endangered tree species, especially in the era of human-induced mass extinction. |
英文关键词 | Ectomycorrhizal fungi Endangered tree species Pseudotsuga japonica (Japanese Douglas-fir) Rhizopogon togasawariana Soil spore-bank |
类型 | Article |
语种 | 英语 |
国家 | Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000404385500004 |
WOS关键词 | PSEUDOTSUGA-MENZIESII SEEDLINGS ; PRIMARY SUCCESSION ; PINUS-MURICATA ; RESISTANT PROPAGULES ; MYCORRHIZAL NETWORKS ; BRITISH-COLUMBIA ; VOLCANIC DESERT ; COMMUNITIES ; RHIZOPOGON ; HOST |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198476 |
作者单位 | Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba 2778563, Japan |
推荐引用方式 GB/T 7714 | Murata, Masao,Nagata, Yuki,Nara, Kazuhide. Soil spore banks of ectomycorrhizal fungi in endangered Japanese Douglas-fir forests[J],2017,32(4):469-479. |
APA | Murata, Masao,Nagata, Yuki,&Nara, Kazuhide.(2017).Soil spore banks of ectomycorrhizal fungi in endangered Japanese Douglas-fir forests.ECOLOGICAL RESEARCH,32(4),469-479. |
MLA | Murata, Masao,et al."Soil spore banks of ectomycorrhizal fungi in endangered Japanese Douglas-fir forests".ECOLOGICAL RESEARCH 32.4(2017):469-479. |
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