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Symbiotic fungi undergo a taxonomic and functional bottleneck during orchid seeds germination: a case study on Dendrobium moniliforme
Meng, Yuan-Yuan1; Fan, Xu-Li2; Zhou, Lv-Rong3; Shao, Shi-Cheng1; Liu, Qiang1; Selosse, Marc-Andre2,4,5; Gao, Jiang-Yun2
Corresponding AuthorSelosse, Marc-Andre(ma.selosse@wanadoo.fr) ; Gao, Jiang-Yun(jiangyun.gao@ynu.edu.cn)
2019-11-09
Source PublicationSYMBIOSIS
ISSN0334-5114
Pages8
AbstractIn many germinating orchids that rely on fungal partners for their nutrition, fungal diversity decreases during development. We document this pattern in the in situ development of Dendrobium moniliforme, where the diversity of cultivable Tulasnella species drops from the early germinating stage (6 Tulasnella species) to that of emergence of the second leaf (2 species), with species discontinuance and no new species appearing. We investigated the functional aspects of this decay by germinating seeds in vitro with the different strains available and observed, over 60 and 120 days, a perfect match between the stages at which Tulasnella spp. occur in situ and the ability to support in vitro development to this stage. The taxonomic bottleneck during germination may result, at least in D. moniliforme, from inability of the fungus to support seedling growth beyond a specific stage. Moreover, the isolated Tulasnella strains that best supported D. moniliforme development did not cluster together phylogenetically. Thus, the interaction between partners, rather than intrinsic fungal traits, may be involved in bottleneck of fungal symbionts during orchid germination.
KeywordMicrospermy Mycoheterotrophy Partner compatibility Protocorm Symbiotic germination Tulasnella
DOI10.1007/s13199-019-00647-x
Indexed BySCI ; SCI
Language英语
WOS Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000495188500001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/70994
Collection中国西南野生生物种质资源库
Corresponding AuthorSelosse, Marc-Andre; Gao, Jiang-Yun
Affiliation1.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China
2.Yunnan Univ, Lab Ecol & Evolutionary Biol, Kunming 650500, Yunnan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
4.Sorbonne Univ, CNRS, EPHE, ISYEB,Museum Natl Hist Nat, CP 39,57 Rue Cuvier, F-75005 Paris, France
5.Univ Gdansk, Fac Biol, Ul WitaStwosza 59, PL-80308 Gdansk, Poland
Recommended Citation
GB/T 7714
Meng, Yuan-Yuan,Fan, Xu-Li,Zhou, Lv-Rong,et al. Symbiotic fungi undergo a taxonomic and functional bottleneck during orchid seeds germination: a case study on Dendrobium moniliforme[J]. SYMBIOSIS,2019:8.
APA Meng, Yuan-Yuan.,Fan, Xu-Li.,Zhou, Lv-Rong.,Shao, Shi-Cheng.,Liu, Qiang.,...&Gao, Jiang-Yun.(2019).Symbiotic fungi undergo a taxonomic and functional bottleneck during orchid seeds germination: a case study on Dendrobium moniliforme.SYMBIOSIS,8.
MLA Meng, Yuan-Yuan,et al."Symbiotic fungi undergo a taxonomic and functional bottleneck during orchid seeds germination: a case study on Dendrobium moniliforme".SYMBIOSIS (2019):8.
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