Science topic

Orchidaceae - Science topic

A plant family of the order Orchidales, subclass Liliidae, class Liliopsida (monocotyledons). All orchids have the same bilaterally symmetrical flower structure, with three sepals, but the flowers vary greatly in color and shape.
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Publications related to Orchidaceae (10,000)
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Ophioviruses (genus Ophiovirus, family Aspiviridae) are plant-infecting viruses with non-enveloped, filamentous, naked nucleocapsid virions. Members of genus Ophiovirus have a segmented single-stranded negative-sense RNA genome (ca. 11.3-12.5 kb), encompassing three or four linear segments. These segments encode in total four to seven proteins in s...
Article
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Central questions of reproductive research on Dactylorhiza sambucina (Orchidaceae) are, if and how pollinator-mediated negative frequency dependent selection might maintain its flower colour polymorphism. As this hypothesis was based on artificial populations, it needs to be verified under natural conditions. Therefore, we demonstrate and discuss s...
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IntroductionDry calcareous grasslands are among the most species-rich habitats worldwide but strongly endangered by abandonment causing a severe decline of characteristic species such as orchids. To counteract further degradation, economically sustainable restoration tools such as megaherbivore grazing, that aim to substitute extinct wild grazers,...
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A new species of Muscarella Luer (Orchidaceae) is Described for Colombia From the Department of Antioquia.
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Liparis tianchiensis (Orchidaceae, Epidendroideae), a new species from Wenxian County, Gansu Province, China, is described and illustrated, based on morphological characters. Liparis tianchiensis is morphologically similar to L. damingshanensis , L. pauliana and L. mengziensis with erect, lax flowered-inflorescences, small persistent floral bracts,...
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Mycorrhizal symbiosis has been related to the coexistence and community assembly of coexisting orchids in few studies despite their obligate dependence on mycorrhizal partners to establish and survive. In hyper-diverse environments like tropical rain forests, coexistence of epiphytic orchids may be facilitated through mycorrhizal fungal specializat...
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Cattleya warneri, an orchid with ornamental potential, suffers indiscriminate harvest and is classified as a vulnerable species, requiring propagation studies. The aim of this study was to evaluate the effect of biomass or aqueous extract of Desmodesmus subspicatus microalga and plant growth regulators (PGRs): 6-benzyladenine (BA) and α-naphthalene...
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Orchidaceae constitute the second-largest flowering plant family worldwide with over 27,000 species found on all continents except Antarctica. Orchids are frequently celebrated for their exceptional morphological and ecological diversity and are highly valued in the horticultural trade. Orchids exhibit distinct floral and physiological features, su...
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The authors describe a new hybrid, Ophrys ×turris-veneris (O. candica × O. classica), found on April 22, 2019 at Torre Veneri, in the homonymous SCI (Site of Community Importance) along the coastal strip of Lecce, in a fairly humid meadow but soon drying out due to the heat of late spring. <e seven speci�mens found in 2019 showed signs of su7erin...
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O!"#$% ×%'()*+-,+-.#++ , !" "!#$# %&'%(# )'*++# L*,,* (S-.*"/#, P!0.%- 1*'%(%#"-.*) 299 A new hybrid is described, Ophrys ×sancti-ligorii, between Ophrys incubacea and the Salento endemism Ophrys tardans. 8e author found two specimens for the first time on April 20, 2019 at San Ligorio, a few kilometers north-east of Lecce, in an arid prairie, kept...
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8e authors report a population of Ophrys tarentina close to Lecce, in an olive grove with spontaneous vegetation and several orchid species. 8is is the 0rst consistent and stable population reported in the Province of Lecce. Only occasional individuals, single or in small groups, were found so far, especially on the Ionian coast of the Salento pen...
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A new species of Epibator Luer (Orchidaceae) is described from the Bota Caucana, Department of Cauca, Colombia.
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The stem of Dendrobium nobile Lindl. (Orchidaceae), called “Shihu” in traditional Chinese medicine, is a well-known medicinal and edible plant material in China. It is used as an antipyretic, analgesic, and tonic to nourish the stomach and Yin (i.e., to improve the production of body fluids). These therapeutic properties are attributed to its alkal...
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Orchid mycorrhizal fungi (OMF) from the rhizoctonia aggregate are generally considered to be soil saprotrophs, but their ability to utilize various nutrient sources has been studied in a limited number of isolates cultivated predominantly in liquid media, although rhizoctonia typically grow on the surface of solid substrates. Nine isolates represen...
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Sobralia Ruiz & Pav. is a large and morphologically diverse neotropical orchid genus. It can be divided into four sections and some informal groups of species based mainly on the inflorescence architecture. While most of the species have strongly abbreviated, compact raceme, the section Racemosae is characterized by an elongated inflorescence with...
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Abstract The importance of Barbosa Rodrigues’ works for science is indisputable and their impact on the knowledge of the orchid flora of Brazil deserves a special mention. Here we present a summary of the main contributions of Barbosa Rodrigues to Orchidaceae, the second largest botanical family in Brazil. We quantified the contribution of Barbosa...
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The municipality of Igarapé-Miri is located in the Endemism Center of Belém, which corresponds to the most deforested portion of the Brazilian Amazon with only 38% of its native forest remaining. The family Orchidaceae has several endemic taxa and expressive diversity in the Amazon phytogeographic domain, including in the state of Pará where 97 gen...
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The Orchidaceae family accounts for about 28,000 species, and most of them are mentioned in the folk medicine of nations around the world. The use of terrestrial orchids in European and Mediterranean regions has been reported since ancient times, but little information is available on their medicinal properties, as well as on their phytochemicals a...
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Horizontal gene transfer is a rare and useful genetic mechanism in higher plants. Gastrodia elata Blume (GE) (Orchidaceae), well known as traditional medicinal material in East Asia, adopts a heterotrophic lifestyle, thus being considered to be more prone to horizontal gene transfer (HGT). GE is a “polytypic species” that currently comprised of fiv...
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The taxonomy of Spiranthes is highly challenging due to its phenotypic plasticity, morphological convergence, and hybridization. This paper presents a re-evaluation of the genus Spiranthes (Orchidaceae) in Taiwan, with special reference to the taxonomic identity of S. suishaensis that has often been considered the earlier name of S. nivea or S. hon...
Article
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Ultrastructure and dimensions of whole seed, embryo, and testa cells of 10 orchid species native to North America and Hawaii are reported. Seeds of seven terrestrials (Cleistes bifaria, Isotria medeoloides, Liparis elata, L. hawaiensis, Platanthera holochila, P. integrilabia, and P. leucophaea), two epiphytes (Encyclia tampensis, Epidendrum nocturn...
Article
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Orchids are widely used in traditional medicine for the treatment of a whole range of different health conditions, and representatives of the Neotropical subtribe Maxillariinae are not an exception. They are utilized, for instance, for their spasmolytic and anti-inflammatory activities. In this work, we analyze the literature concerning the chemica...
Article
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Orchidaceae is one of the diverse groups in monocots with advanced characters adapted to various habitats. Chiloschista Species was collected during our filed study in Belgaum district Karnataka. The species was morphologically identified with Chiloschista confusa which is newly discovered epiphytic orchid in 2021, and is new addition to Karnataka...
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Wetland ecosystems are important habitats for the growth and survival of numerous terrestrial orchids in Europe. This study reviews the current knowledge on the orchids of wetland vegetation in the Central Balkans. The orchid flora was analyzed from taxonomic, phytogeographical, ecological and conservation aspects. The most important taxa include t...
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The Poláchovy Stráně-Výří Skály Natural Monument is a well-known but insufficiently explored locality of calciphilous and thermophilous flora in the submontane landscape of northern Moravia. A total of 305 vascular plant taxa were found during the botanical survey, out of which 20 are included in the national red list of endangered species. The occ...
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Historic herbaria can provide a wealth of information on a diversity of topics, including the past occurrence of plants, their abundance, names and uses. However, 16th and 17th century herbaria are rare and very fragile, and can best be studied after digitization. The collection of Naturalis Biodiversity Center in Leiden, the Netherlands, contains...
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Echinosepala truncata is described as new to science and illustrated from the holotype. It is compared with E. tomentosa , from which it differs by the sparsely lanate ovary, the narrowly obovate, apically rounded synsepal, the spathulate, apically and basally rounded petals, and the rectangular, apically truncate lip. The phylogenetic relationship...
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Gastrochilus wolongensis (Orchidaceae), a new orchid species from Sichuan Province, Southwest China, is described and illustrated. It morphologically resembles G. sinensis, but differs markedly from the latter in having black-purple stripes (vs. purplish-red spots) on the adaxial side of the petals and sepals, a reniform epichile densely covered wi...
Article
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Fungi with orchid roots have been increasingly proven to play important roles in orchid growth, spatial distribution, and coexistence of natural communities. Here, we used 454 amplicon pyrosequencing with two different primer combinations to investigate the spatial variations in the community of OMF and endophytic fungi associates within the roots...
Article
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Mycoheterotrophy is an alternative nutritional strategy whereby plants obtain sugars and other nutrients from soil fungi. Mycoheterotrophy and associated loss of photosynthesis has evolved repeatedly in plants, particularly in monocots. Although reductive evolution of plastomes in mycoheterotrophs is well documented, the dynamics of nuclear genome...
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Background Gastrodia elata Bl. f. glauca , a perennial herb of G.elata Bl. in Orchidaceae, is one of the most valuable traditional Chinese medicines. G. elata Bl. is a chlorophyll-free myco-heterotrophic plant, which must rely on the symbiotic growth of Armillaria , but not all Armillaria strains can play the symbiotic role. Additionally, Armillari...
Article
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Recent floristic research suggests that tropical lowland forests in Borneo may have exceptionally high vascular epiphyte diversity. However, few studies have assessed the characteristics of epiphyte flora within the Asian tropics, or have performed comparisons with tropical forests in other biogeographical regions, especially the African and Americ...
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Some new and noteworthy records of spermatophytes in the Wallacea region are presented. These include three new species records in Wallacea for Lasianthus chrysotrichus Lauterb. (Rubiaceae), Medinilla medinilliana (Gaudich.) Fosberg & Sachet (Melastomataceae) and Thottea tomentosa (Blume) Ding Hou (Aristolochiaceae); new collection records for Pand...
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The neotropical orchid genus Telipogon Kunth was established in 1815 and currently comprises more than 250 species. Representatives of this genus are generally epiphytic plants lacking pseudobulbs. The stem is either abbreviated or elongate and the leaves are conduplicate. Flowers are usually resupinate with small sepals and petals similar to the l...
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In this study, the vascular flora of the Lalmai hill area of the Cumilla district has been thoroughly explored. This study reveals the occurrence of 923 species of vascular plants under 594 genera and 141 families in the study area, which represents 23.75% of the total 3886 plant species reported from Bangladesh until now. About 68.15% of these spe...
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Streszczenie W pracy przedstawiono nowe stanowiska 18 rzadkich (lub regionalnie rzadkich) roślin naczyniowych w Polsce (rodzimych i obcych), tj. Allium victorialis , Asclepias syriaca , Carex brizoides , Cephalanthera rubra , Cypripedium calceolus , Eragrostis albensis , Erysimum pieninicum , Gentiana cruciata , Lepidium coronopus , L. latifolium ,...
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A new species of Gongora Ruiz & Pav. (Orchidaceae), Gongora niesseniae Sauleda, Szlachetko and Uribe-Velez is reported for Colombia.
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The paper presents new locations of 11 rare plant species listed in the Red Data Books of the Republic of Buryatia, Zabaikalsky Krai, Irkutsk Region, and the Russian Federation. Thus, for both Adonis sibirica and Cypripedium guttatum 1 new locality in the Zabaikalsky Krai is revealed; for 3 species, namely Allium altaicum, Calypso bulbosa, and Phys...
Article
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Twenty-five new records of orchid species for Cambodia are reported, including nine new generic records for the genera Acanthophippium, Adenoncos, Didymoplexiella, Eria sensu stricto, Erythrodes, Phreatia, Pomatocalpa, Seidenfadenia and Thunia. There is a growing interest in orchids in Cambodia, which has led to substantial ex situ cultivation effo...
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Neotinea ustulata (Orchidaceae) is a rapidly declining species throughout much of its range and is classified as critically endangered in Lithuania. Most of the historical occurrences of the species were concentrated in northwestern Lithuania, while the largest extant population was in the southern part of the country. In July 2022, a new populatio...
Article
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Catasetum is a speciose Neotropical orchid genus of which male and female flowers emit scents acting both as attractant and reward for their exclusive pollinators, male orchid bees (Euglossini: Apidae). In Catasetum, it is well known that flowers display a remarkably morphological sexual dimorphism. However, it remains poorly investigated whether t...
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A new orchid species from southern Thailand, Aphyllorchis periactinantha , is described and illustrated. The novelty is characterized by the subactinomophic flowers, the concave labellum, not divided into hypochile and epichile, the reduced staminodes, the shallowly bilobed stigma and the semicircular rostellum. A key to the species of Aphyllorchis...
Article
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A new record of Yoania prainii King & Pantling (Orchidaceae) and the distribution of Yoania japonica Maxim in the Luoxiao Range, China, is reported. Yoania is endemic to eastern Asia and comprises four species, one variety, and one form distributed in China, India, Japan and Vietnam. The systematics of Y. japonica and Y. prainii, as well as the flo...
Preprint
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Mycorrhizal fungi form ubiquitous symbiotic associations with almost all land plants and are of key interest to evolutionary biologists and ecologists because this ancient symbiosis was essential for the colonization of land by plants, a major turning point in the evolutionary history of the earth, and the subsequent development and functioning of...
Article
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Gastrochilus heminii (Orchidaceae), a new orchid species from Sichuan Province, Southwest China, is described and illustrated. It morphologically resembles G. affinis and G. yei , but differs markedly from the former in having a thinner and slightly rolled downwards reniform epichile and the central thickened purple-red mat with irregular folds (vs...
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The Darjeeling Himalaya, located in eastern part of the Himalaya biodiversity hotspot in India, is known for its diverse vegetation. The varying climatic conditions along the elevational gradient provide suitable habitats for supporting a rich flora in the region. We provide an updated checklist of vascular epiphytes in Darjeeling Himalaya. A total...
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Volatile Organic Compounds (VOCs) are produced by plants to address a variety of physiological and ecological tasks (among others, stress resistance, and pollinator attraction). Genetics is a key factor in determining plants' VOCs content and emission, nevertheless, environment strongly influences VOCs profiles in plants. Orchids are a widespread g...
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Mycorrhizal specificity, i.e., the range of fungi allowing mycorrhizal partnerships, differs among orchid species, but that at early developmental stages is unclear. We investigated whether mycorrhizal specificity during seed germination and seedling development differs among three Dendrobium species, D. officinale, D. okinawense and D. moniliforme...
Article
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A new species of Gongora Ruiz & Pav. (Gongora antioquiensis Uribe-Velez, Sauleda & Szlachetko, Orchidaceae) is reported for Colombia, from the Department of Antioquia.
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A species of Dendrobium of section Calyptrochyllus from Waigeo Island, Papua Barat, Indonesia, is described as Dendrobium lancilabium subsp. wuryae
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Stanhopea is an orchid’s genus that includes 55 species distributed from Mexico to Argentina. However, due to its horticultural potential, a decrease in wild populations has been generated by the effect of over-collecting, further aggravated by the effect of habitat destruction, placing some species of Stanhopea from Mexico in some risk categories....
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Background: Genetic diversity, genetic structure, and gene flow in plant populations and their influencing factors are important in conservation biology. Cypripedium macranthos isone of the few wild orchids with high ornamental value in northern China. However, over the past decade, excessive collection, trading, tourism development, habitat fragme...
Article
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Background Orchids have evolved various strategies that aim to ensure their reproduction success. These may include the production of rewards for pollinators, or on the contrary, deception. Specific sets of features such as flower morphology, color, nectar, and odor presence (or lack thereof) are considered to determine suitability for pollination...
Article
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DURING HIS SHORT but productive career, Noël Bernard (1874–1911) shed much light on the nature of the endophytic fungi found in orchids and their importance to their survival. His major discovery was the symbiotic germination of orchid seeds. This is where a soil fungus provides water, mineral nutrients and carbon to the seedling, compensating for...
Article
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Dryadella (Orchidaceae, Epidendreae) is a Neotropical genus predominantly distributed in the Andean region and the Atlantic rainforest (ARF). Three species occurring in the Brazilian ARF, Dryadella edwallii, D. wuerstlei, and D. zebrina, are challenge to tell apart due to the overlap of morphological characters that define them, so we considered th...
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The morphological characteristic of Dendrobium moschatum (Buch.-Ham.) Sw. 1805 is very distinctive among Dendrobium Sw. 1799, and it has high medicinal and ornamental values. Here, we reported the first complete chloroplast genome of D. moschatum. The complete genome of D. moschatum was 159,701 bp in length with 130 genes, including 38 tRNA, 8 rRNA...
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A new species of Chondroscaphe (Orchidaceae), Chondroscaphe padreortizii Uribe-Velez, Sauleda and Szlachetko is reported for Colombia.
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TCP gene family are specific transcription factors for plant, and considered to play an important role in development and growth. However, few related studies investigated the TCP gene trait and how it plays a role in growth and development of Orchidaceae. In this study, we obtained 14 TCP genes (CgTCPs) from the Spring Orchid Cymbidium goeringii g...
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Phylogenetic relationships of the orchid genus Spathoglottis (Orchidaceae: Collabieae) in Peninsular Malaysia and Borneo were inferred using the internal transcribed spacer of a nuclear ribosomal DNA (nrITS), a plastid gene maturaseK (matK) and the plastid region trnL-F. Eleven species and three infraspecific taxa of Spathoglottis were examined, wi...
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Traunsteinera globosa (L.) Rchb. (Globe orchid) of the family Orchidaceae was recorded on Korab mountain in an alpine pasture in July 2022. Both the genus Traunsteinera and the species Traunsteinera glo-bosa are new to the flora of the Republic of North Macedonia. This record represents the southernmost limit of its distribution in Europe. Data on...
Article
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Anoectochilus emeiensis K. Y. Lang, together with other Anoectochilus species, has long been used as the main source of many traditional Chinese medicines. Owing to the shortcomings of molecular markers, the study of the genetic diversity and medicinal component synthesis mechanism of the endemic Anoectochilus species has been delayed. In this stud...
Article
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Liparis casseabria, a new species of Orchidaceae, is described and illustrated from Natma Taung National Part, Chin State, Myanmar. It is morphologically similar to L. jovispluvii, but can be easily distinguished from the latter by having conspicuous underground tuber, narrowly lanceolate petals, dramatically folded lip with entire margin and emarg...
Article
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Plant transcription factors are involved in different developmental pathways. NAC transcription factors (No Apical Meristem, Arabidopsis thaliana Activating Factor, Cup-shaped Cotyledon) act in various processes, e.g., plant organ formation, response to stress, and defense mechanisms. In Antirrhinum majus, the NAC transcription factor CUPULIFORMIS...
Poster
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Dactylorhiza osmanica subsp. osmanica, endemic orchid, symbiotic seed germination, Orchidaceae.
Article
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Este estudio analizó la estructura de comunidades de epífitas vasculares en dos localidades de los Montes de María (Chalán y Morroa). Se calcularon las cur-vas de rango-abundancia, rarefacción e interpola-ción-extrapolación y la diversidad alfa de las dos localidades. Además, la diversidad alfa y beta fue-ron estimadas en cinco estratos verticales...
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Background: Endophytic fungi play a critical ecological role in the growth and development of orchids, but little is known about the spatial and temporal dynamics of fungal diversity or the ecological functions of fungi during orchid growth and reproduction. Calanthe sieboldii Decne. is listed in the Chinese National Key Protected Wild Plants as a...
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Containing the largest number of species, the orchid family provides not only materials for studying plant evolution and environmental adaptation, but economically and culturally important ornamental plants for human society. Previously, we collected genome and transcriptome information of Dendrobium catenatum , Phalaenopsis equestris , and Apostas...
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Aerides multiflora Roxb. belonging to the family Orchidaceae is known for its multi-utility. It is being used in the preparation and for cuts and wounds traditionally and traded for its fragrance and as a cut flower. Among the isolates studied, emerged as the most potent inhibitor, suggesting that it be a candidate structure for inhibitor drug deve...