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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17049
|2 doi
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|a eng
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|a Suetsugu, Kenji
|e verfasserin
|4 aut
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| 245 |
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|a Evidence for mycorrhizal cheating in Apostasia nipponica, an early-diverging member of the Orchidaceae
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 The Authors New Phytologist © 2020 New Phytologist Foundation.
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|a Most land plants, from liverworts to angiosperms, form mutualistic mycorrhizal symbioses with fungal partners. However, several plants known as mycoheterotrophs exploit fungal partners by reversing the polarity of carbon movement, which usually moves from plant to fungus. We investigated the physiological ecology of a photosynthetic orchid, Apostasia nipponica, which belongs to the first branching group within the Orchidaceae, to improve our understanding of mycoheterotrophic evolution in orchids. The fungal symbionts and nutrition modes of A. nipponica were investigated using molecular barcoding and carbon-13 (13 C) and nitrogen-15 (15 N) measurements, respectively. Community profiling based on a metabarcoding technique revealed that A. nipponica associates with specific Ceratobasidium spp. within ectomycorrhizas-forming clades, whereas isotope analysis revealed that A. nipponica was similar to fully mycoheterotrophic orchids in its 13 C signature and was even more enriched in 15 N than most of the fully mycoheterotrophic orchids that exploit ectomycorrhizal fungi. Our molecular and mass-spectrometric approaches demonstrated, for the first time, that a member of the Apostasioideae, the earliest-diverging lineage of the Orchidaceae, gains carbon through both photosynthesis and fungal cheating (i.e. partial mycoheterotrophy) during the adult stage
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Apostasioideae
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|a Orchidaceae
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|a mixotrophy
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|a mycoheterotrophy
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|a mycorrhiza
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|a parasite
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|a stable isotopes
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|a Carbon
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|a Matsubayashi, Jun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1984
|g 229(2021), 4 vom: 29. Feb., Seite 2302-2310
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|g year:2021
|g number:4
|g day:29
|g month:02
|g pages:2302-2310
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|u http://dx.doi.org/10.1111/nph.17049
|3 Volltext
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