Host-specificity of symbiotic mycorrhizal fungi for enhancing seed germination, protocorm formation and seedling development of over-collected medicinal orchid, Dendrobium devonianum
文献类型：期刊论文
| 作者 | Huang, Hui; Zi, Xiao-Meng; Lin, Hua ; Gao, Jiang-Yun
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| 刊名 | JOURNAL OF MICROBIOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 56期号:1页码:42-48 |
| 关键词 | Dendrobium Devonianum Medicinal Orchid Restoration-friendly Cultivation Symbiotic Seed Germination |
| 英文摘要 | All orchids maintain an obligate relationship with mycorrhizal symbionts during seed germination. In most cases, germination-enhancing fungi have been isolated from roots of mature plants for conservation and cultivation purposes. To understand the germination biology of Dendrobium devonianum, an over-collected medicinal orchid, the seeds of D. devonianum were inoculated with a fungal strain (FDd1) isolated from naturally occurring protocorms of D. devonianum and two other germination-enhancing fungal strains (FDaI7 and FCb4) from D. aphyllum and Cymbidium mannii, respectively. The fungal strain was isolated from five protocorms of D. devonianum and identified as a species of the genus Epulorhiza. In germination trials, treatments with all of the three fungal strains showed a significant promoting effect on seed germination and protocorm formation, compared with the control treatment (no inoculation). However, FDd1 fungal strain showed the greatest effectiveness followed by FDaI7 and FCb4. For all inoculation and control treatments, seeds developed to protocorms regardless of the presence of illumination, whereas protocorms did not develop to seedlings unless illumination was provided. The results of our manipulative experiments confirmed the hypothesis that mycorrhizae associated with orchid seedlings are highly host-specific, and the degree of specificity may be life stagespecific under in vitro conditions. The specific mycorrhizal symbionts from protocorms can enhance restoration efforts and the conservation of orchids such as D. devonianum. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 公开日期 | 2018-02-09 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/10713]  |
| 专题 | 西双版纳热带植物园_濒危植物迁地保护与再引种研究组 西双版纳热带植物园_2012年后新成立研究组 |
| 推荐引用方式 GB/T 7714 | Huang, Hui,Zi, Xiao-Meng,Lin, Hua,et al. Host-specificity of symbiotic mycorrhizal fungi for enhancing seed germination, protocorm formation and seedling development of over-collected medicinal orchid, Dendrobium devonianum[J]. JOURNAL OF MICROBIOLOGY,2018,56(1):42-48. |
| APA | Huang, Hui,Zi, Xiao-Meng,Lin, Hua,&Gao, Jiang-Yun.(2018).Host-specificity of symbiotic mycorrhizal fungi for enhancing seed germination, protocorm formation and seedling development of over-collected medicinal orchid, Dendrobium devonianum.JOURNAL OF MICROBIOLOGY,56(1),42-48. |
| MLA | Huang, Hui,et al."Host-specificity of symbiotic mycorrhizal fungi for enhancing seed germination, protocorm formation and seedling development of over-collected medicinal orchid, Dendrobium devonianum".JOURNAL OF MICROBIOLOGY 56.1(2018):42-48. |
入库方式： OAI收割
来源：西双版纳热带植物园
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