Variation in mycorrhizal communities and the level of mycoheterotrophy in grassland and Forest populations of Neottia ov...
status: published
Novel mycorrhizal cheating in a green orchid: Cremastra appendiculata depends on carbon from deadwood through fungal ass...
Published in The New phytologist
To date, there has been no robust evidence for the exploitation of saprotrophic non-rhizoctonia fungi by green plants, although some fully mycoheterotrophic orchids are known to exploit them, and mycoheterotrophic evolution has probably occurred through intermediate mixotrophic stages. We investigated the physiological ecology of a fully mycohetero...
The radiocarbon age of mycoheterotrophic plants.
Published in The New phytologist
Mycorrhizal symbioses and the evolution of trophic modes in plants
Since the early colonization of land, plants depend, to various extents, on mycorrhizal fungi to meet their nutrient demands. In most mycorrhizal symbioses, plants provide sugars derived from photosynthesis to the fungi, whereas the fungi provide essential minerals to the plant. However, in some plants, the flow of carbon has reversed and the fungi...
Mixotrophic orchids do not use photosynthates for perennial underground organs.
Published in The New phytologist
Mycorrhizal divergence and selection against immigrant seeds in forest and dune populations of the partially mycoheterot...
Plant populations occupying different habitats may diverge from each other over time and gradually accumulate genetic and morphological differences, ultimately resulting in ecotype or even species formation. In plant species that critically rely on mycorrhizal fungi, differences in mycorrhizal communities can contribute to ecological isolation by r...
Mycorrhizal divergence and selection against immigrant seeds in forest and dune populations of the partially mycoheterot...
Published in Molecular ecology
Plant populations occupying different habitats may diverge from each other over time and gradually accumulate genetic and morphological differences, ultimately resulting in ecotype or even species formation. In plant species that critically rely on mycorrhizal fungi, differences in mycorrhizal communities can contribute to ecological isolation by r...
The C-13 content of the orchid Epipactis palustris (L.) Crantz responds to light as in autotrophic plants
Most temperate green orchids form mycorrhizae with rhizoctonias fungi and are considered autotrophic. Some orchids, however, associate with fungi that also form ectomycorrhizae with surrounding trees and derive part of their carbon from these fungi. This evolutionarily derived condition, called mixotrophy, is characterized by natural C-13 enrichmen...
Mycorrhizal Associations and Trophic Modes in Coexisting Orchids: An Ecological Continuum between Auto- and Mixotrophy
Published in Frontiers in Plant Science
Two distinct nutritional syndromes have been described in temperate green orchids. Most orchids form mycorrhizas with rhizoctonia fungi and are considered autotrophic. Some orchids, however, associate with fungi that simultaneously form ectomycorrhizas with surrounding trees and derive their carbon from these fungi. This evolutionarily derived cond...
You are what you get from your fungi: nitrogen stable isotope patterns in Epipactis species
Background and Aims Partially mycoheterotrophic plants are enriched in (13)C and (15)N compared to autotrophic plants. Here, it is hypothesized that the type of mycorrhizal fungi found in orchid roots is responsible for variation in (15)N enrichment of leaf tissue in partially mycoheterotrophic orchids. Methods The genus Epipactis was used as a cas...
