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18 results on '"Rhynchostylis"'

2. Assessment of genetic diversity among four orchids based on ddRAD sequencing data for conservation purposes

Author

Kaushik Moitra, Subhas Chandra Roy, and Dilip De Sarker

Subjects
0301 basic medicine, Genetics, Genetic diversity, biology, Physiology, Accession number (library science), Cymbidium, Plant Science, Rhynchostylis, biology.organism_classification, Nucleotide diversity, Dendrobium, 03 medical and health sciences, 030104 developmental biology, Geodorum, Botany, Molecular Biology, Gene, Research Article
Abstract

Genetic diversity was assessed in the four orchid species using NGS based ddRAD sequencing data. The assembled nucleotide sequences (fastq) were deposited in the SRA archive of NCBI Database with accession number (SRP063543 for Dendrobium, SRP065790 for Geodorum, SRP072201 for Cymbidium and SRP072378 for Rhynchostylis). Total base pair read was 1.1 Mbp in case of Dendrobium sp., 553.3 Kbp for Geodorum sp., 1.6 Gbp for Cymbidium, and 1.4 Gbp for Rhynchostylis. Average GC% was 43.9 in Geodorum, 43.7% in Dendrobium, 41.2% in Cymbidium and 42.3% in Rhynchostylis. Four partial gene sequences were used in DnaSP5 program for nucleotide diversity and phylogenetic relationship determination (Ycf2 gene of Dendrobium, matK gene of Geodorum, psbD gene of Cymbidium and Ycf2 gene of Ryhnchostylis). Nucleotide diversity (per site) Pi (π) was 0.10560 in Dendrobium, 0.03586 in Geodorum, 0.01364 in Cymbidium and 0.011344 in Rhynchostylis. Neutrality test statistics showed the negative value in all the four orchid species (Tajima’s D value −2.17959 in Dendrobium, −2.01655 in Geodorum, −2.12362 in Rhynchostylis and −1.54222 in Cymbidium) indicating the purifying selection. Result for these gene sequences (matK and Ycf2 and psbD) indicate that they were not evolved neutrally, but signifying that selection might have played a role in evolution of these genes in these four groups of orchids. Phylogenetic relationship was analyzed by reconstructing dendrogram based on the matK, psbD and Ycf2 gene sequences using maximum likelihood method in MEGA6 program.

Published
2016
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3. MICROPROPAGATION OF RHYNCHOSTYLIS GIGANTEA VAR. RUBRA THROUGH PROTOCORM-LIKE BODIES

Author

Kanchit Thammasiri, Sasikarn Prasongsom, Ngarmnij Chuenboonngarm, and W. Noonpakdee

Subjects
Sucrose, Plant tissue culture, Liquid medium, Rhynchostylis, Horticulture, Biology, biology.organism_classification, Rhynchostylis gigantea, chemistry.chemical_compound, chemistry, Micropropagation, Thidiazuron, Shoot
Abstract

Rhynchostylis gigantean var. rubra is a variety of purple-red flower orchid. There is small amount of this orchid in natural habitat. Shoot-tip culture was applied for asexual propagation to maintain its good characteristics. Efficient methods for micropropagation through protocorm-like bodies (PLBs) from shoot-tips using various plant tissue culture media and sucrose concentrations were studied. After two months of culture, the highest survival rate of 92.6% and the highest PLB formation (7.9 PLBs) were found in a modified Vacin and Went liquid medium with 1% (w/v) sucrose. Shoot proliferation was effectively induced by using a basal Schenk and Hildebrandt (SH). PLBs cultured in SH media supplemented with 0.1 mg L-1 thidiazuron (TDZ) produced a high number of shoots/PLB but had no root while those cultured in PGR free SH media or SH media supplemented with 0.5 mg L-1 NAA produced lots of shoots with roots.

Published
2014
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5. The genus Christensonia

Author

Eric A. Christenson

Subjects
Traditional medicine, biology, Line drawings, Christensonia vietnamica, Plant Science, Rhynchostylis, Vanda, biology.organism_classification, Christensonia, Geography, Tropical horticulture, Vietnam, Aerides, Genus, Botany, Aeridinae, Orchidaceae
Abstract

Se discute y se ilustra con un dibujo de plumilla detallado el género monotípico vietnami- ta Christensonia Haager. Una planta de clima cálido, nativa de tierras bajas, C. vietnamica es un interesante aporte a la horticultura tropical, así como un puente taxonómico entre los géneros Aerides, Rhynchostylis y Vanda.

Published
2016
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6. Genus: Renanathera to Robequetia

Author

Eng Soon Teoh

Subjects
Type species, biology, Genus, Renanthera, Botany, Rhynchostylis retusa, Rhynchostylis, biology.organism_classification, Medicinal plants
Abstract

This brief chapter discusses the botanical and medicinal usage of Renanthera and Rhynchostylis, two very popular tropical orchids in cultivation, and Robequetia. Rhynchostylis retusa has a prominent place among Indian medicinal plants described by van Rheede in 1703 in his Hortus Indicus Malabaricus, the first European publication in which medicinal Asian orchid species were described.

Published
2016
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7. Development of microsatellite markers of vandaceous orchids for species and variety identification

Author

Sirinrat Wannapinpong, Kornsorn Srikulnath, P Phuekvilai, C Nettuwakul, and Surin Peyachoknagul

Subjects
Heterozygote, Ascocenda, DNA, Plant, Arachnis, Species Specificity, Botany, Genetics, Orchidaceae, Molecular Biology, Alleles, Phylogeny, DNA Primers, Genetic diversity, Polymorphism, Genetic, biology, General Medicine, Rhynchostylis, biology.organism_classification, Vanda, Thailand, Genetic marker, Genetic Loci, Microsatellite, Phalaenopsis, Genome, Plant, Microsatellite Repeats
Abstract

Vandaceous orchids are a group of orchid genera in the subfamily Vandoideae. Among this group, Mokara, Phalaenopsis, and Vanda are the most popular and commercially important orchids in Thailand. Novel microsatellite markers were developed from Mokara, the intergeneric hybrid from 3 genera Vanda, Ascocentrum, and Arachnis by using enriched method. Six primers from this study plus one primer previously developed from Vanda genome, a total of 7 markers, were selected to characterize 4 orchid genera (Mokara, Vanda, Rhynchostylis, and Ascocenda). The observed and expected heterozygosities varied in the 4 genera from 0.0000-1.0000 and 0.0000-0.8765, respectively. The transferability of these primers was also investigated in 76 vandaceous orchids from 12 genera. Three primer pairs, MOK26, MOK29, and MOK62, could successfully amplify the DNA of all samples, while MOK103 could be used with most of the samples. The total number of alleles from 76 samples ranged from 3 to 19 alleles per locus, with an average of 8.5714. Therefore, these markers could be used for variety/ species identification, certification and protection, genetic diversity, and evolutionary studies.

Published
2014

8. Thai Orchid Genetic Resources and Their Improvement

Author

Kanchit Thammasiri

Subjects
0106 biological sciences, Spathoglottis, biology, 02 engineering and technology, Plant Science, Rhynchostylis, Horticulture, biology.organism_classification, Vanda, 01 natural sciences, Bulbophyllum, Paphiopedilum, Dendrobium, Aerides, Botany, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Phalaenopsis, 010606 plant biology & botany
Abstract

Thailand is the origin of about 1300 species and 180–190 genera of orchids, comprising the major tropical orchids in the world. These wild Thai orchids grow naturally in various habitats and have unique flowers, stems, leaves, and roots. Many genera, including Vanda, Rhynchostylis, Ascocentrum, Aerides, Phalaenopsis, Doritis, Dendrobium, Bulbophyllum, Cirrhopetalum, Spathoglottis, and Paphiopedilum, contribute significantly to the Thai orchid industry for cut-flowers and potted plants. The improvement of these orchids’ horticultural characteristics has been significant through breeding, tissue culture, and cultural practices, as well as by technological applications and extension. Orchids will continue to dominate other ornamental crops in Thailand due to their diversity, better technologies, know-how from research, suitable climatic conditions, and experienced and skillful growers and exporters, as well as their nationwide popularity.

Published
2016
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10. Rhynchostylis retusa Blume 1825

Author

Jarvis, Charlie

Subjects
Tracheophyta, Rhynchostylis retusa, Rhynchostylis, Liliopsida, Asparagales, Biodiversity, Plantae, Orchidaceae, Taxonomy
Abstract

Epidendrum retusum Linnaeus, Species Plantarum 2: 953. 1753. "Habitat in India." RCN: 6897. Lectotype (Majumdar & Bakshi in Taxon 28: 354. 1979): [icon] " Ansjeli-maravara " in Rheede, Hort. Malab. 12: 1, t. 1. 1693. Current name: Rhynchostylis retusa (L.) Blume (Orchidaceae)., Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part E), pp. 490-515 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 495, DOI: 10.5281/zenodo.291971

Published
2007
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11. Rhynchostylis retusa

Author

Rebecca G. Troth, Rebecca G. Troth, Rebecca G. Troth, and Rebecca G. Troth

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1654397%5DMICH-V-1654397, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1654397/MICH-V-1654397/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1976

12. Rhynchostylis retusa

Author

H. H. Bartlett, H. H. Bartlett, H. H. Bartlett, and H. H. Bartlett

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1654394%5DMICH-V-1654394, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1654394/MICH-V-1654394/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1935

13. Rhynchostylis retusa

Author

E. Quisumbing, E. Quisumbing, E. Quisumbing, and E. Quisumbing

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1654396%5DMICH-V-1654396, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1654396/MICH-V-1654396/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1932

14. Rhynchostylis retusa

Author

Thakur Rup Chand, Thakur Rup Chand, Thakur Rup Chand, and Thakur Rup Chand

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1495141%5DMICH-V-1495141, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1495141/MICH-V-1495141/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1955

15. Rhynchostylis retusa

Author

Walter N. Koelz, Walter N. Koelz, Walter N. Koelz, and Walter N. Koelz

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1495143%5DMICH-V-1495143, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1495143/MICH-V-1495143/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1949

16. Rhynchostylis retusa

Author

Thakur Rup Chand, Thakur Rup Chand, Thakur Rup Chand, and Thakur Rup Chand

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1495144%5DMICH-V-1495144, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1495144/MICH-V-1495144/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1951

17. Rhynchostylis retusa

Author

Thakur Rup Chand, Thakur Rup Chand, Thakur Rup Chand, and Thakur Rup Chand

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1495142%5DMICH-V-1495142_1, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1495142/MICH-V-1495142_1/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1952

18. Rhynchostylis retusa

Author

Thakur Rup Chand, Thakur Rup Chand, Thakur Rup Chand, and Thakur Rup Chand

Abstract

Angiosperms, http://name.umdl.umich.edu/IC-HERB00IC-X-1495145%5DMICH-V-1495145, https://quod.lib.umich.edu/cgi/i/image/api/thumb/herb00ic/1495145/MICH-V-1495145/!250,250, The University of Michigan Library provides access to these materials for educational and research purposes. Some materials may be protected by copyright. If you decide to use any of these materials, you are responsible for making your own legal assessment and securing any necessary permission. If you have questions about the collection, please contact the Herbarium professional staff: herb-dlps-help@umich.edu. If you have concerns about the inclusion of an item in this collection, please contact Library Information Technology: libraryit-info@umich.edu., https://www.lib.umich.edu/about-us/policies/copyright-policy

Published
1950

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