The most recent results on orchid mycorrhizal fungi in Hungary

Illyés, Zoltán; Ouanphanivanh, Noémi; Rudnóy, Szabolcs; Orczán, Ákos Kund; Bratek, Zoltán

doi:10.1556/abiol.61.2010.suppl.8

Cited by 13 publications

(7 citation statements)

References 13 publications

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“…and other members of the Orchidaceae. Studies on French, German and Hungarian C. damasonium plants have revealed that they associate with a variety of basidiomycetes and ascomycetes (Bidartondo et al, 2004;Julou et al, 2005;Illyes et al, 2010). Italian C. longifolia have been shown to associate with Hebeloma, Russula and Tomentella, and Estonian C. longifolia with Thelephoraceae and Sebacina (Abadie et al, 2006;Liebel et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Diversity of root-associated culturable fungi ofCephalanthera rubra(Orchidaceae) in relation to soil characteristics

Bell

Yokoya

Kendon

et al. 2020

PeerJ

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Cephalanthera rubra (L.) Rich., Red Helleborine, is a widespread orchid in Europe but known only from three very small populations in England. These populations are in decline with no natural seed setting for more than a decade. The species may become extinct in the UK soon unless viable strategies are in place for ex situ conservation, especially the use of symbiotic propagation. Because of the fragile nature of the populations in England mycorrhizal fungal diversity study is not feasible. Therefore, to understand the factors needed for healthy Red Helleborine populations, soil characteristics and diversity of culturable root-derived fungi of the populations from a small area in the Loire Valley in France were studied. The main objectives of the study were: (1) Which culturable mycorrhizal fungi associated with C. rubra roots and (2) To what extent is variation in fungal communities related to variation in soil characteristics? Here, we report a significant difference in diversity of culturable mycorrhizal and non-mycorrhizal fungi depending on soil pH and phosphorus content. Mycorrhizal associations were favoured by plants in locations with low soil nutrient availability and comparatively higher pH. Our study shows that mycorrhizal fungi, both ecto and endo, can be cultured from roots of plants at different maturity stages.

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Section: Discussionmentioning

confidence: 99%

Diversity of root-associated culturable fungi ofCephalanthera rubra(Orchidaceae) in relation to soil characteristics

Bell

Yokoya

Kendon

et al. 2020

PeerJ

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“…Previous studies have focused on the identification of their mycorrhizal fungi. Fungal diversity in C. damasonium has been assessed in three different works carried out in France, Germany, and Hungary showing that this orchid associates with a variety of both basidiomycetes and ascomycetes (Bidartondo et al, ; Julou et al, ; Illyés et al, ). Abadie et al () and Liebel et al () have respectively reported that C. longifolia associates with several fungal taxa, such as Thelephoraceae and Sebacinaceae in Estonia, whereas Hebeloma , Russula , and Tomentella are the main mycorrhizal fungi in the same orchid species collected in Italy.…”

Section: Introductionmentioning

confidence: 99%

Fungal diversity and specificity in Cephalanthera damasonium and C. longifolia (Orchidaceae) mycorrhizas

Pecoraro

Huang

Caruso

et al. 2017

J of Sytematics Evolution

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Orchids depend on mycorrhizal fungi for their nutrition, at least in the early stages of their growth and development, and in many cases throughout the life. In spite of the increasing number of studies describing fungal diversity in orchids, there is still more to be learnt about the identity of fungal partners and specificity in orchid mycorrhizal associations. We investigated the fungal communities associated with the roots of Cephalanthera damasonium (Mill.) Druce and C. longifolia (L.) Fritsch adult plants, using morphological methods and fungal internal transcribed spacer‐DNA polymerase chain reaction amplification, cloning, and sequencing. A range of fungi belonging to Basidiomycota and Ascomycota was uncovered in the roots of the two investigated orchid species, showing a low degree of mycorrhizal specificity. At least 11 fungal taxa, including Cenococcum geophilum Fr., Ceratobasidium sp., Exophiala salmonis J. W. Carmich., Hymenogastraceae, and Sebacinaceae colonized C. damasonium roots, while approximately 9 fungal types, such as Bjerkandera adusta (Willd.) P. Karst., Phlebia acerina Peck, Sebacinaceae, Tetracladium sp., and Tomentella sp. associated with C. longifolia. Phylogenetic and statistical analyses indicated significant differences in the fungal communities associated with the two studied Cephalanthera species, as well as distinct mycorrhizal partners associated with each orchid plant. Our results strongly suggest that both C. damasonium and C. longifolia are generalist in their mycorrhizal associations.

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“…In this study, very few protocorms were produced by seeds sown in seed packets, and they were almost invariably found in packets placed in the immediate neighbourhood of adult L. lilifolia . Low percentages of seed germination were also reported for L. loeselii at Lake Velence (Hungary), where <5% of the seeds germinated in seed packets placed in the upper 5 cm of floating peat mats (Illyés et al, 2005). The low germination was attributed to the low abundance of appropriate mycorrhizal fungi in floating peat mats.…”

Section: Floral and Seed Charactersmentioning

confidence: 86%

“…All strains supported growth of protocorms in the laboratory. Illyés et al (2005) isolated a similar Tulasnella strain from the roots of adult plants and protocorms of L. loeselii growing on peat mats. Protocorms hosted three additional strains that belonged to the genus Ceratobasidium .…”

Section: Floral and Seed Charactersmentioning

confidence: 99%

Biological Flora of Britain and Ireland: Liparis loeselii

Jacquemyn

Pankhurst²,

Jones

et al. 2023

Journal of Ecology

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This account presents information on all aspects of the biology of Liparis loeselii (L.) Rich. (Fen Orchid) that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of Britain and Ireland: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, and history and conservation. Liparis loeselii is a small terrestrial orchid that has a circumboreal distribution and is widespread in Europe and North America. Despite its wide distribution, the species is locally rare and has declined considerably in most of its range. In Britain, the species has a disjunct distribution and is now known to occur consistently at only six sites in eastern England and three in south Wales. It is absent from Ireland. Its most characteristic habitats in Britain are inland fens and coastal dune slacks, but outside Britain it can also be found in wet meadows, marshes, forested seep springs, at lake borders or on mats of floating peat. Populations of Liparis loeselii in dune slacks tend to be short‐lived, and can rapidly increase in size or decrease and disappear as environmental conditions change. The species does not tolerate high nutrient concentrations or low pH. It is susceptible to drought, which reduces seed germination, seedling recruitment and adult survival. Heavy predation by rabbits and rodents has been observed under drought conditions. Liparis loeselii reproduces both by sexual reproduction, and by vegetative propagation through the production of pseudobulbs. Although flowers are accessible to insects, entomophilous pollination is unusual, and most sexual reproduction is the result of selfing. Fruits ripen late in the growing season (mid‐October) and the dust‐like seeds are dispersed during winter by wind and water. Germination occurs during the following growing season and is supported by a wide variety of mycorrhizal fungi. Since the late 19th century Liparis loeselii has declined considerably in Britain and elsewhere in Europe, primarily due to habitat destruction and loss, natural succession, and habitat desiccation due to drainage. As a result, the species has been listed as endangered in the Bern Convention and the European Habitat Directive (92/43/EEC) and is the focus of intensive conservation efforts in many countries. Restoration of habitat by mowing, extensive grazing and peat removal, and the creation of new habitat by dune slack formation in dune systems and peat removal in fens may prolong population persistence and promote establishment of new populations.

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The most recent results on orchid mycorrhizal fungi in Hungary

Cited by 13 publications

References 13 publications

Diversity of root-associated culturable fungi ofCephalanthera rubra(Orchidaceae) in relation to soil characteristics

Diversity of root-associated culturable fungi ofCephalanthera rubra(Orchidaceae) in relation to soil characteristics

Fungal diversity and specificity in Cephalanthera damasonium and C. longifolia (Orchidaceae) mycorrhizas

Biological Flora of Britain and Ireland: Liparis loeselii

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