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Terrestrial Orchids: From Seed to Mycotrophic Plant
Acknowledgements Introduction 1. Properties of 'dust' seeds 2. Seed development 3. Seed survival 4. Requirements for germination 5. Fungi 6. Germination processes 7. Underground organs 8. OrchidExpand
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Recent developments in the study of orchid mycorrhiza
Orchids are mycoheterotrophic during their seedling stage and in many species the dependency on fungi as a carbohydrate source is prolonged into adulthood. The mycobionts in orchid mycorrhiza belongExpand
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Seed ecology of dust seeds in situ: a new study technique and its application in terrestrial orchids
A method is described by which seeds of terrestrial orchids are sown and retrieved in the field under almost natural conditions. For the first time it is possible to conduct a quantitative study ofExpand
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  • Open Access
Recent developments in the study of orchid mycorrhiza
Orchids are mycoheterotrophic during their seedling stage and in many species the dependency on fungi as a carbohydrate source is prolonged into adulthood. The mycobionts in orchid mycorrhiza belongExpand
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Germination and seedling establishment in orchids: a complex of requirements.
BACKGROUND Seedling recruitment is essential to the sustainability of any plant population. Due to the minute nature of seeds and early-stage seedlings, orchid germination in situ was for a long timeExpand
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Orchid mycorrhiza: implications of a mycophagous life style
Orchid mycorrhiza probably affects about 25 000 plant species and thus roughly one tenth of all higher plants. Histologically, this symbiosis resembles other kinds of endomycorrhiza, the fungalExpand
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Phenology of roots and mycorrhiza in orchid species differing in phototrophic strategy
Summary • The mycorrhiza of orchids represents an energy source that may replace or supplement photosynthesis. Dependency on mycotrophy in adult life stages would thus be expected to be inverselyExpand
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Identification of mycorrhizal fungi from single pelotons of Dactylorhiza majalis (Orchidaceae) using single‐strand conformation polymorphism and mitochondrial ribosomal large subunit DNA sequences
The mitochondrial ribosomal large subunit (Ls) DNA was used to identify the orchid mycorrhizal fungi found in roots of Dactylorhiza majalis. The gene was amplified using DNA extracted from singleExpand
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Seed dormancy patterns in Epipactis palustris (Orchidaceae): Requirements for germination and establishment of mycorrhiza
Some terrestrial orchid species, including Epipactis palustris (L.) Crantz, are considered extremely difficult to germinate and cultivate in vitro. Observations of orchids germinating in nature areExpand
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Temperature sensitivity of in vitro germination and seedling development of Dactylorhiza majalis (Orchidaceae) with and without a mycorrhizal fungus
Abstract. Symbiotic germination and development in vitro of Dactylorhiza majalis seeds with a strain of Rhizoctonia is very temperature dependent. Above an optimum at 23–25 °C there is a markedExpand
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