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|a 10.1111/nph.70106
|2 doi
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|a pubmed25n1401.xml
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Selosse, Marc-André
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Mixotrophy in orchids
|b facts, questions, and perspectives
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 09.05.2025
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|a Date Revised 10.05.2025
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2025 The Author(s). New Phytologist © 2025 New Phytologist Foundation.
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|a While orchids germinate thanks to carbon from their symbiotic fungi, variable carbon exchanges exist between adult orchids and their mycorrhizal fungi. Although some truly autotrophic orchids reward their fungi with carbon at adulthood, some species remain achlorophyllous and fully dependent on fungal carbon (mycoheterotrophy). Others are photosynthetic but also import fungal carbon: The so-called mixotrophic (MX) orchids rely on fungi of diverse taxonomy and ecology. Here, we classify MX nutrition of orchids into three types. Type I mixotrophy associates with diverse Asco- and Basidiomycota that are either saprotrophic or ectomycorrhizal, entailing enrichment of the orchids in 2H, 13C, and 15N. The two other types associate with rhizoctonias, a polyphyletic assemblage of Basidiomycotas that is ancestrally mycorrhizal in orchids. Type II mixotrophy associates with rhizoctonias that secondarily evolved into saprotrophic or ectomycorrhizal ecology, and thus enrich the orchid in 2H, 13C, and 15N. Type III mixotrophy, which remains debated, associates with rhizoctonias that have retained their ancestral lifestyle, that is saprotrophic and/or endophytic in nonorchids, and only entail orchid enrichment in 2H and 15N. Based on a case study of achlorophyllous variants in Mediterranean Ophrys and on published data, we discuss the distinct nature and research perspectives of type III mixotrophy
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|a Journal Article
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|a Review
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|a isotopic enrichment
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| 650 |
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4 |
|a mycoheterotrophy
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| 650 |
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4 |
|a mycorrhiza
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| 650 |
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|a rhizoctonia
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| 650 |
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4 |
|a saprotrophy
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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7 |
|a 7440-44-0
|2 NLM
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| 700 |
1 |
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|a Alaux, Pierre-Louis
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Deloche, Lara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Delannoy, Etienne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Minasiewicz, Julita
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tsiftsis, Spyros
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Figura, Tomas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Martos, Florent
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 246(2025), 5 vom: 07. Juni, Seite 1912-1921
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
8 |
|g volume:246
|g year:2025
|g number:5
|g day:07
|g month:06
|g pages:1912-1921
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/nph.70106
|3 Volltext
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|d 246
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