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64 results for “mycoheterotroph”
Fig. 3 in Unravelling the species diversity, phylogeny and biogeography of the mycoheterotrophic Voyrieae (Gentianaceae) and the description of a new species
Fig. 3. Time-calibrated multigene species phylogeny of Voyrieae. Node numbers represent Bayesian posterior probabilities. Colored squares before species names represent the current presence of species in the respective biogeographic areas. Colored squares on nodes represent the ancestral area reconstruction with the highest likelihood using the DEC model. Ma = million years ago. Pl. = Pliocene.
Fig. 1. Species diversity within Voyrieae. A in Unravelling the species diversity, phylogeny and biogeography of the mycoheterotrophic Voyrieae (Gentianaceae) and the description of a new species
Fig. 1. Species diversity within Voyrieae. A, Voyria corymbosa; B, V. chionea; C, V. obconica; D, V. pittieri; E, V. spruceana; F, V. parasitica; G, V. aurantiaca; H, V. primuloides; I, V. clavata; J, V. caerulea. — All photos by Vincent Merckx, except H, by Steven Dessein.
Image 1 in Ecology and population structure of a terrestrial mycoheterotrophic orchid, Aphyllorchis montana Rchb.f. (Orchidaceae) in Soppinabetta forests of the Western Ghats, India
Image 1. Morphology of Aphyllorchis montana. © P.A. Sinu A - a clump of the orchid; B - a single flower; C - terminal part of an inflorescence with mature capsules.
Fig. 4 in Unravelling the species diversity, phylogeny and biogeography of the mycoheterotrophic Voyrieae (Gentianaceae) and the description of a new species
Fig. 4. Habit of Voyria bicolor (Gomes & Merckx 62, L). Photos: V. Merckx. Scale bars: 1 cm.
Thismia guangdongensis (Thismiaceae), a new mycoheterotrophic species from China
<p><em>Thismia</em> <em>guangdongensis</em>, a fully mycoheterotrophic plant collected from Guangdong Province, China, is proposed and described as a new species. It is assigned to <em>Thismia</em> subsect. <em>Brunonithismia</em> based on having free tepals distinctly dissimilar in shape and size, and by phylogenetic evidence based on molecular data. This new species is morphologically similar to <em>T</em>. <em>breviappendiculata</em> from southern Myanmar but is easily distinguished from the latter by its orange campanulate hypanthium, inner surface of hypanthium with orange transverse bars, and filiform appendage of the inner whorl of tepals. With a plastome 20,379 bp in length and only 14 intact genes, the proposed new species has an extremely reduced plastome at the last stage of degradation, similar to most of the Thismia species previously studied.</p>
Mycoheterotrophic plants living on arbuscular mycorrhizal fungi are generally enriched in 13C, 15N, and 2H isotopes
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Thismia guangdongensis (Thismiaceae), a new mycoheterotrophic species from China
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Data from: Mycorrhizal divergence and selection against immigrant seeds in forest and dune populations of the partially mycoheterotrophic Pyrola rotundifolia
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 reducing or even inhibiting germination of immigrant seeds. In this study, we investigated whether the mycorrhizal communities available in the soil and associating with the roots of seedlings and adult plants of the mixotrophic Pyrola rotundifolia differed between populations growing in sand dunes and forests. In addition, reciprocal germination experiments were performed to test whether native seeds showed higher germination than immigrant seeds. Our results showed that the mycorrhizal communities differed significantly between forest and dune populations, and that within populations seedlings and adults also associated with different mycorrhizal communities. In both forest and dune populations, mycorrhizal communities were dominated by members of the Thelephoraceae, but dune populations showed a higher incidence of members of the Inocybaceae, whereas forest populations showed a high abundance of members of the Russulaceae. Reciprocal germination experiments showed that native seeds showed a higher germination success than immigrant seeds and this effect was most pronounced in dune populations. Overall, these results demonstrate that plants of P. rotundifolia growing in dune and forest habitats associate with different mycorrhizal communities and that reduced germination of non-native seeds may contribute to reproductive isolation. We conclude that selection against immigrants may constitute an important reproductive barrier at early stages of the speciation process.
FIGURE 1 in Thismia violacea (Thismiaceae), a new mycoheterotrophic species from the Brazilian Cerrado
FIGURE 1. Holotype of Thismia violacea at HJ (D.C. Gomes & L.R. Souza 283, HJ00006768) Image: speciesLink network (Herbario Jataiense—HJ).
FIGURE 2 in Thismia violacea (Thismiaceae), a new mycoheterotrophic species from the Brazilian Cerrado
FIGURE 2. Distribution map of Thismia violacea. A. Record of the species in the state of Goiás. B. Distribution in Parque Natural Municipal Mata do Açude, municipality of Jataí, state of Goiás, Brazil (satellite images by Google satellite obtained in 2023).
FIGURE 1. Cephalanthera yintiaolingensis. A in Cephalanthera yintiaolingensis (Orchidaceae, Epidendroidee, Neottieae), a new mycoheterotrophic orchid from Northeast Chongqing, China
FIGURE 1. Cephalanthera yintiaolingensis. A) Habitat; B) Habit; C) front view of a flower; D) anatomy of a flower; E) side view of lip and column; F) dorsal view of colume; G) side view of column; H) ventral view of column. A, B and C photographed by Feng Chen, others photographed by Chi Xiong.
FIGURE 2. Didymoplexis gibbosa. A. Plant with flowers. B in Didymoplexis gibbosa (Orchidaceae), a new mycoheterotrophic species from southern Vietnam
FIGURE 2. Didymoplexis gibbosa. A. Plant with flowers. B. Swollen part of rhizome. C. Inflorescence. D. Intact flowers, front and side views. E, F. Flattened flower, front and half-side views (lip removed). G. Flattened lip, adaxial and abaxial side. H–J. Lip, abaxial, halfside and adaxial views. K. Column and lip, side view. L, M. Intact lip and sagittal section of lip, side views. N–P. Column, front, half-side views and view half from back. Drawn from specimens NUR 3450 and NUR 3482 by L. Averyanov and T. Maisak.
FIGURE 1. Didymoplexis gibbosa. A. Plants with flowers. B. Rhizomes. C in Didymoplexis gibbosa (Orchidaceae), a new mycoheterotrophic species from southern Vietnam
FIGURE 1. Didymoplexis gibbosa. A. Plants with flowers. B. Rhizomes. C. Inflorescences with flower bud (left) and with withering flower in the evening (right), side views. D. Recently abscised flower, side views. E, F. Recently abscised flowers, front views. G. Recently abscised flower with lateral sepals removed, abaxial view. H. Pedicel, ovary, column and lip, side view. I. Lip, views from different sides. J. Column, column foot and lip, side views. K. Apical part of ovary and column, views from different sides. L. Column apex, front view. Photos by M. Nuraliev from NUR 3450 and NUR 3482; photo correction and plate design by L. Averyanov and T. Maisak.
FIGURE 2. Gastrodia huapingensis. A. Habit. B. Mature fruit. C in Gastrodia huapingensis (Orchidaceae: Epidendroideae: Gastrodieae): a remarkable new mycoheterotrophic orchid with dimorphic columns from China
FIGURE 2. Gastrodia huapingensis. A. Habit. B. Mature fruit. C. Flower (front view). D. Flower (side view,). E. Perianth tube, expanded and flattened. F–G. Lip. H. Lip and incurved column (side view). I. Lip and normal column (side view).
FIGURE 1. Gastrodia huapingensis. A. Habit. B. Inflorescence. C. Immature fruit. D. Mature fruit. E in Gastrodia huapingensis (Orchidaceae: Epidendroideae: Gastrodieae): a remarkable new mycoheterotrophic orchid with dimorphic columns from China
FIGURE 1. Gastrodia huapingensis. A. Habit. B. Inflorescence. C. Immature fruit. D. Mature fruit. E. Flower (front view). F. Flower (side view). G. Perianth tube, expanded and flattened. H–I. Lip. J. Lip and incurved column (side view). K. Lip and normal column (side view). L. Rhizome (with roots removed). Scale bars: B–D. 1.5 cm; E. 2 mm; F–G. 5 mm; H–K. 2 mm; L. 1 cm.
FIGURE 3 in Gastrodia kuroshimensis (Orchidaceae: Epidendroideae: Gastrodieae), a new mycoheterotrophic and complete cleistogamous plant from Japan
FIGURE 3. Gastrodia kuroshimensis (from the holotype). A. Habit. B–D. Flower. (B, side view; C, front view; D, back view). E. Flattened perianth tube. F. Flattened lip.G–I. Column (G, lateral view; H, back view; I, front view). A. Bar = 3 cm. B–I. Bar = 5 mm.
FIGURE 2 in Gastrodia kuroshimensis (Orchidaceae: Epidendroideae: Gastrodieae), a new mycoheterotrophic and complete cleistogamous plant from Japan
FIGURE 2. Gastrodia kuroshimensis (from the type locality). A–B. Flower (A, front view; B, back view). C. Flower with slit between the lateral sepals, back view). D. Flattened perianth tube. E. Lip and column. F. Lip. G. Flattened lip. H–I. Column (H, back view; I, front view). Bar = 5 mm.
FIGURE 2. Thismia brunneomitroides. A. Flowering plant. B. Flower. C in Thismia brunneomitroides (Thismiaceae), a new mycoheterotrophic species from southern Thailand
FIGURE 2. Thismia brunneomitroides. A. Flowering plant. B. Flower. C. Longitudinal section of flower. D. Immature fruit. E. Style. F. Stamen with apical lobes, inner view. G. Stamen with lateral appendage and thecae, outer view. Materials from Tagane et al. T4968. Drawn by Kumi Hamasaki. Bar = 1 cm (A–C), 5 mm (D) and 1 mm (E–G).
FIGURE 1. Thismia brunneomitroides from the type locality. A. Flowering plant. B–C. Flowers. D in Thismia brunneomitroides (Thismiaceae), a new mycoheterotrophic species from southern Thailand
FIGURE 1. Thismia brunneomitroides from the type locality. A. Flowering plant. B–C. Flowers. D. Longitudinal section of perianth tube with anthers and style. E. Stamen with lateral appendage and thecae, outer view. F. Style. Bar = 1 cm (A–C), 5 mm (D) and 1 mm (E–F).
FIGURE 2. Sciaphila sugimotoi from type locality. A. Flower plants, B. Male flower, C. Female flower. D in Sciaphila sugimotoi (Triuridaceae), a new mycoheterotrophic plant from Ishigaki Island, Japan
FIGURE 2. Sciaphila sugimotoi from type locality. A. Flower plants, B. Male flower, C. Female flower. D. Female flower at fruiting stage with persistent perianth segments. E. Anthers with floral disc. F. Immature carpel with stigma. G. Immature fruit. Bar = 1 cm (A), 1 mm (B–D) and 0.1 mm (E–G). Drawn by Kumi Hamasaki.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.