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Relevant bibliographies by topics / Velamen structure

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Academic literature on the topic 'Velamen structure'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Velamen structure"

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Mr., Sabu V.U, and Raji R. Dr. "Anatomical Insights into Orchid Roots: Adaptive Mechanisms in Polystachya concreta, Liparis viridiflora, & Coelogyne nervosa." International Journal of Environmental and Agriculture Research 10, no. 12 (2024): 06–11. https://doi.org/10.5281/zenodo.14575031.

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<strong>Abstract:</strong> Orchids exhibit remarkable anatomical adaptations in their roots, enabling them to thrive in diverse ecological conditions. This study investigates the root anatomical features of three orchid species: Polystachya concreta, Liparis viridiflora, and Coelogyne nervosa. Specimens were collected from the Eunoia Orchid Garden, Ambalavayal, and analyzed using histological techniques. Observations revealed significant variations in root structures, including velamen layers, cortical organization, vascular bundle arrangements, and pith characteristics. Polystachya concreta e

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Roth-Nebelsick, Anita, Mike Thiv, Yaron Malkowsky, Rena Schott, and Arnd Heyer. "Structure and functional anatomy of the gas exchange apparatus of leafless orchids: evidence for a control mechanism?" Botanical Journal of the Linnean Society 197, no. 2 (2021): 249–62. http://dx.doi.org/10.1093/botlinnean/boab021.

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Abstract It is assumed that special structures in aerial roots of leafless orchids, aeration units, are involved in gas exchange regulation. In this study, the structure of aeration units in three leafless taxa (Microcoelia exilis, M. aphylla, Dendrophylax funalis) and a leaf-bearing species (Campylocentrum micranthum) are investigated to obtain more evidence of a possible mechanism for gas exchange control in aerial orchid roots. Extensive analyses of the anatomy of the velamen radicum, exodermis and cortex were performed using light and electron microscopy and µCT. In all considered leafless

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Joca, Thais Arruda Costa, Denis Coelho de Oliveira, Gerhard Zotz, Uwe Winkler, and Ana Silvia Franco Pinheiro Moreira. "The velamen of epiphytic orchids: Variation in structure and correlations with nutrient absorption." Flora 230 (May 2017): 66–74. http://dx.doi.org/10.1016/j.flora.2017.03.009.

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Pedroso-de-Moraes, Cristiano, Thiago de Souza-Leal, Rafael L. Brescansin, Adarilda Pettini-Benelli, and Maria das Graças Sajo. "Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae)." Anais da Academia Brasileira de Ciências 84, no. 2 (2012): 455–68. http://dx.doi.org/10.1590/s0001-37652012005000028.

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Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol's solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registere

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Carvalho, José L., Adriana H. Hayashi, Shoey Kanashiro, and Armando R. Tavares. "Anatomy and function of the root system of bromeliad Nidularium minutum." Australian Journal of Botany 65, no. 7 (2017): 550. http://dx.doi.org/10.1071/bt17121.

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The root anatomy of bromeliad Nidularium minutum Mez was studied and the efficiency of root system in contributing to the growth, development and mineral uptake of the species evaluated. To accomplish this analysis, four treatments were applied as follows: (i) control plants with 5 mL H2O on substrate and 5 mL H2O into tank; (ii) plants supplied with nutrients to the tank with 5 mL H2O on substrate and 5 mL Hoagland and Arnon solution into tank; (iii) plants supplied with nutrients to the roots with 5 mL HA on substrate and 5 mL H2O into tank; and (iv) plants supplied with nutrients to the tan

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Joca, Thais Arruda Costa, Denis Coelho de Oliveira, Gerhard Zotz, Uwe Winkler, and Ana Silvia Franco Pinheiro Moreira. "Corrigendum to “The velamen of epiphytic orchids: Variation in structure and correlations with nutrient absorption” [Flora 230 (2017) 66–74]." Flora 235 (October 2017): 92–93. http://dx.doi.org/10.1016/j.flora.2017.08.008.

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Mukhtubayeva, S., A. Khalymbetova, A. Myrzagaliyeva, S. Kubentayev, M. Zhumagul, and S. Abiyev. "Study of anatomical structure of Dactylorhiza fuchsii (Orchidaceae) growing in the Karkaraly Mountains (Central Kazakhstan)." Fundamental and Experimental Biology 11830, no. 2 (2025): 127–35. https://doi.org/10.31489/2025feb2/127-135.

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The study of plant structure peculiarities plays an important role in understanding the ecology and habitat conditions of species, as well as for the identification of characteristic features in confirming the species identity of plant raw materials. This article presented the results of microscopic structure of above-ground and underground organs of Dactylorhiza fuchsii growing in the Karkaraly Mountains (Central Kazakhstan). The results showed that the leaf preparation is characterized by the presence of polygonal epidermal cells, stomata of tetracytic type, predominantly localized on the lo

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Oliveira, Rafael S., Todd E. Dawson, and Stephen S. O. Burgess. "Evidence for direct water absorption by the shoot of the desiccation-tolerant plant Vellozia flavicans in the savannas of central Brazil." Journal of Tropical Ecology 21, no. 5 (2005): 585–88. http://dx.doi.org/10.1017/s0266467405002658.

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Our common view on water uptake by terrestrial plants is that it occurs via absorption by roots from the soil substrate. However, it has long been known that plants exhibit alternative water-absorption strategies, particularly in drought-prone environments. Examples include many tropical epiphytic orchids which use a specialized structure called velamen radicum around their aerial roots for moisture absorption directly from the air (Capesius & Barthlott 1975), specialized trichomes in bromeliads (Andrade 2003, Benzing 1990), uptake by hydathodes into leaves of species inhabiting dry desert

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Castillo-Pérez, Luis J., Juan J. Maldonado-Miranda, Ángel J. Alonso-Castro, and Candy Carranza-Álvarez. "Efecto de 6-bencilaminopurina y nitrato de potasio sobre la micropropagación in vitro de Laelia anceps subsp. anceps (Orchidaceae)//Effect of 6-benzylaminopurine and potassium nitrate on the in vitro micropropagation of Laelia anceps subsp. anceps (Orchidaceae)." Biotecnia 22, no. 1 (2019): 32–38. http://dx.doi.org/10.18633/biotecnia.v22i1.1122.

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Laelia anceps subsp. anceps es una especie de la familia Orchidaceae que presenta altas tasas de extracción y comercio ilegal en diversos estados de la República Mexicana, además requiere de condiciones nutricionales específicas debido a sus características de desarrollo y distribución. Por lo cual, el objetivo de la presente investigación fue establecer un protocolo de micropropagación in vitro comparando el efecto de la citocinina 6-bencilaminopurina (BAP) y el nitrato de potasio (KNO3). Para ello, se cultivaron semillas estériles en medio MS sin reguladores de crecimiento vegetal. Posterior

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Santos, Igor Soares dos, and Marcos José da Silva. "Anatomy and Histochemistry of the Vegetative System of Brachystele guayanensis (Lindl.) Schltr. (Orchidaceae), a Potential Medicinal Species." Plants 12, no. 14 (2023): 2635. http://dx.doi.org/10.3390/plants12142635.

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The orchid genus Brachystele Schltr. (Orchidoideae, Cranichideae, Spiranthinae) comprises 20 species distributed from Mexico to Argentina, with 10 species found in Brazil. Anatomical studies of Orchidoideae Lindl. have been scarce, and the anatomy and histochemistry of Brachystele are still largely unknown. In this study, we conducted a characterization of the vegetative organs of B. guayanensis (Lindl.) Schltr. using standard anatomical and histochemical microtechniques. In this study, we provide the first information about the anatomy and histochemistry of Brachystele. The studied species wa

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Books on the topic "Velamen structure"

1

Giuseppe Pollack, architetto di Casa Belgiojoso: Villa e tenimento Belgiojoso Giulini Della Porta a Velate. Gangemi, 2012.

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Book chapters on the topic "Velamen structure"

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Roth-Nebelsick, Anita, Frank Hauber, and Wilfried Konrad. "The Velamen Radicum of Orchids: A Special Porous Structure for Water Absorption and Gas Exchange." In Biologically-Inspired Systems. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-74144-4_5.

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