Comparative reproductive biology of a rare endemic orchid. Geodorum densiflorum rhizome lectin inhibits ehrlich. In vitro, micropropagation, geodorum densiflorum, orchid. Hosted by the usgs core science analytics and synthesis. Common name in english is ground gem orchid and synonym is geodorum purpureum r. Usd95817s us d95817 s usd95817 s us d95817s authority us united states prior art keywords refrigerator cabinet new york cabinet geddes hamby prior art. Jones 2006 refers to this orchid as geodorum terrestre. Mycorrhizal association of geodorum densiflorum lam.
Pink nodding orchid profile nsw environment, energy. Data source and references for geodorum densiflorum from the usda plants database. Nsw populations of geodorum densiflorum are at the southern limit of the range and are likely to be the coolest climatic niche sites for the species. Media in category geodorum densiflorum the following 36 files are in this category, out of 36 total. Population structure of geodorum densiflorum orchidaceae. However, it is not a legal authority for statutory or regulatory purposes. The rhizomescontinue to grow and ramify without the formation of other organs for a long time and occasionally shoots are formed from rhizome apices. The root paste is used as insecticide and wounds healing. Population structure of geodorum densiflorum orchidaceae in relation to habitat disturbance and vegetation characteristics. Geodorum densiflorum, commonly known as pink nodding orchid or di bao lan, is a plant in the orchid family and is native to areas from tropical asia to eastern australia and some pacific islands. Pdf antimicrobial activity of different extracts of.
Department of pharmacy, international islamic university chittagong, bangladesh. Rhizome and shoot development during in vitro propagation of. Yes, this is geodorum densiflorum, my favourite genus. Present paper deals taxonomic description with medicinal and ethnobotanical uses of geodorum densiflorum lam. Santi watthana queen sirikit botanic garden academia. Extended distribution of geodorum laxiflorum orchidaceae. The specimen referred to by garay as the type is g. In vitro propagation of the endangered orchid, geodorum. These globular structures failed to produce seedlings on pm medium, where it proliferated. To evaluate the physicochemical, preliminary phytochemical analysis and antibacterial activity of geodorum densiflorum against clinical pathogens.
Geodorum densiflorum a terrestrial orchid endangered. Citeseerx document details isaac councill, lee giles, pradeep teregowda. There are between three and five dark green to yellowish pleated leaves 250350 mm 9. There is no report on phytochemical and physicochemical analysis of geodorum densiflorum leaves. A case of ongoing colonisation subsequent to longdistance dispersal bulletin of the national museum of natature and science, tokyo, series b botany 38. The pseudobulb of geodorum densiflorum is ethno medicinally used for the treatment of various diseases. Avh is a collaborative project of the state, commonwealth and territory herbaria, developed under the auspices of the council of heads of australasian herbaria chah, representing the major australian collections. View of population structure of geodorum densiflorum orchidaceae. Rapid micropropagation of geodorum densiflorum lam schltr.
A large zone of inhibition was observed 15 mm against klebsiella spp. Phytochemical, pharmacognostic and physicochemical evaluation. Geodorum densiflorum is an endangered 2 ethnobotanically important terrestrial orchid which grows at an altitude of 200600m as an undergrowth in moist deciduous forests. The plants database includes the following 1 species of geodorum. Phytochemical, pharmacognostic and physicochemical. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. The species is correspondent author horticulturally important for its attractive pink to white flowers that appear as a dense cluster in. Inflorescences arising from different parts of the pseudobulbs, held above the leaves about 40 cm long, near the apex with short rachis bearing manyflowers leading to the rachis points downwards. Present study deals with the antifungal activity of geodorum densiflorum lam. Page designed through the cooperative efforts of interagency itis teams. It is widely distributed in india, nepal, bhutan, papua new guinea, australia, bangladesh, srilanka, china and himalayas. Pdf, utilization of orchids of wallacea region and. The cytotoxic activities of crude extract was determined using brine shrimp. Micropropagation of the endangered terrestrial orchid, geodorum densiflorum lam.
It has a wide distribution throughout tropical and subtropical asia and west pacific. The recent use of the name geodorum terrestre linnaeus garay for this species see garay, harvard pap. Habitat disturbance can have large impacts on the persistence, survival, and growth of plant populations, particularly for orchids, one of the most threatened plant families. Morphometric data and tissue samples for amplified fragment length polymorphism aflp analysis were collected from 17 geodorum populations in northern and northeastern thailand.
Investigation on invitro cytotoxic, antibacterial and. Technique for rapid mass propagation of geodorum densiflorum lamschltr. Orchids are considered to be the most highly evolved in the floral specialization and diversified form of plants among the monocotyledons hajra and. Geodorum densiflorum is a terrestrial orchid with short underground stems and pseudobulbs. After culturing on each of the four first step media for 4 months and on each of the four second step media for 4 months, the greatest total plb fresh weight, increase in number of plbs and growth rates were obtained when using. The rare plants of niue cieer centre for international. Geodorum densiflorum rhizome lectin inhibits ehrlich ascites. Records in nsw are sparse and occur in drier habitat e. Population structure of geodorum densiflorum orchidaceae in relation to habitat disturbance and vegetation characteristics download download pdf. It is a terrestrial orchid with broad, pleated, dark green to yellowish leaves and up to and twenty pale pink flowers with dark red veins on the labellum. These protocorms transformed into rhizomes, instead of shoots and roots. Seeds germinated and formed light green globular structures on both the media. Ground orchid that flowers in december and january and is dormant the plant is not visible above the ground during winter. Studies on the mycorrhiza of geodorum densiflorum lam.
Data source and references for geodorum densiflorum. Macromicromorphological, antioxidant and preliminary. Limodorum densiflorum an interesting terrestrial species and known as densely flowered geodorum. Variation along the first two axes from the pca performed on aflp phenotypic population values of all study taxa is illustrated in fig. Extended distribution of geodorum laxiflorum orchidaceae in gujarat, indiaa mital r. Updated for itis by the flora of north america expertise network, in connection with an update for usda plants 20072010 reference for. Orchidaceae, locally known as shankhamul, is an endangered terrestrial orchid found in bangladesh and some areas of india. The atlas of living australia acknowledges australias traditional owners and pays respect to the past and present elders of the nations aboriginal and torres strait islander communities.
Flowers white or pinkish, raceme 5060 cm long, from the base of the pseudobulb. It was not found during whistlers threesurvey visits. Swamy 1943 described two variations of the development of monozygotic twins in eulophea epidendraea seed. Pink nodding orchid geodorum densiflorum conservation. Strengthening the taxonomic backbone of thai orchid.
Girardinia erosa decne girardinia formosana yamamoto. Geodorum densiflorum nodding swamp orchid pfaf plant database. Geodorum densiflorum, commonly known as pink nodding orchid or di bao lan, is a. Leaves 3050 x 710 cm, ellipticoblong or lanceolate, acuminate. In vitro germination and micropropagation of geodorum densiflorum. Nsw scientific committee 2001 geodorum densiflorum a terrestrial orchid endangered species determination final. Form and habitat, pink nodding orchid australian national botanic gardens. Geodorum densiflorum is an endangered terrestrial orchid datta et al. Geodorum densiflorum is belongs into family orchidaceae.
Discovery of geodorum densiflorum orchidaceae on the. In order to purify the biologically active protein, 30 g of geodorum densiflorum rhizome were washed with distilled water, peeled off, sliced and homogenized with 300 ml of 10 mm trishcl buffer ph 8. Geodorum densiflorum is a teitestrial orchid, found in india, nepal, some southeast asian countries, papua new guinea and australia. Griffith, an endemic species of india, is reported for the first time from gujarat state as well as from the western ghats. Orchidaceae of north america update, database version 2010 acquired. Tumours can be treated by geodorum densiflorum bulb and.
Rhizome and shoot development during in vitro propagation. Just one advice, please check the white balance wb of your camera. Rapid micropropagation of geodorum densiflorum lam. Download international journal of multidisciplinary research and. Mohammad shahadat hossain1, mohammed abu sayeed2, mohammed aktar sayeed2 and mohammad ehsanul hoque chowdhury3 1. Bap was most effective cytokinin for large scale rhizome mediated multiplication of geodorum densiflorum and tdz could be effectively employed for rapid leafy shoot regeneration. The name geodorom is from the greek geo meaning earth and dorom meaning gift. Presl ames geodorum pacificum rolfe geodorum pallidum d. Variation was 272 % along pc axis 1 and 9 % along pc axis 2. Discovery of geodorum densiflorum orchidaceae on the ogasawara bonin islands. Click below on a thumbnail map or name for species profiles. Rhizome sections were cultured on murashige and skoog ms and knudson ckc media supplemented with various growth regulators and 0. Pdf in vitro germination and micropropagation of geodorum. Population structure of geodorum densiflorum orchidaceae in.
One of ten species of orchid plant genus geodorum that widespread in tropical forests of asia including indonesia papua is geodorum densiflorum. Geodorum densiflorum grows in dry sclerophyll forest, often on coastal sand, at lower altitudes, north from the macleay river on the north coast of nsw weston in harden, 1993. Mediumsized terrestrial herb 2050 cm in geodorum densiflorum tongaheight, with clustered, subglobose pseudobulbs 1. Geodorum densiflorum, universally considered distinct from the above species complex, was included as reference. Point a was a dry, open hill dominated by casuarina equisetifolia l. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Cultural requirements for in vitro seed germination. The australasian virtual herbarium avh is an online resource that provides immediate access to the wealth of plant specimen information held by australian herbaria. Geodorum densiflorum is an endangered terrestrial orchid 6. I think the brown colouration on your image is because of that. Geodorum densiflorum had 121 polymorphic bands 976 %, g.
Antimicrobial activity of different extracts of geodorum densiflorum lam schltr. In vitro studies will immensely aid conservation measure of this orchid species. Geodorum densiflorum international plant names index. Pink shepherds crook orchid this plant is common in the forests around cairns. A case of ongoing colonisation subsequent to longdistance dispersal tomohisa yukawa1, 2dairo kawaguchi, akitsugu mukai2 and yoshiteru komaki3 1 d ep artm nofb y,n il m us d s c 411 amakubo, tsukuba, ibaraki 3050005, japan. This is one of the prime reasons behind their threatened status along with endemic habitat. They are deciduous, terrestrial herbs with underground pseudobulbs, broad, pleated leaves and small to mediumsized, tubeshaped or bellshaped flowers on a flowering stem with a drooping end. May 20, 2002 rhizome mediated in vitro propagation of geodorum densiflorum lam. The effects of culture media on growth and proliferation of earsakul dendrobium dendrobium protocormlike bodies plbs were evaluated in a twostep culture. Main focus was on the corms of both the orchids due to its huge medicinal properties like anticancerous, antioxidant, antidiabetic, antimicrobial, phytotoxic, etc.
Materials and methodsmature capsules of geodorum densiflorum were surface sterilized by submerging them in a 0. Geodorum densiflorum is a leafy, terrestrial herb with crowded pseudobulbs 3050 mm 12 in long and 2030 mm 0. Girardinia heterophylla decne girardinia javanica wedd girardinia leschenaultiana decne girardinia palmata blume. The sterilized capsules were then washed 5 6 times with sterile distilled water. Medicinal and ethnobotanical uses of geodorum densiflorum. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 89236 with original publication details. In vitro seed germination and protocorm development of geodorum densiflorum lam. Geodorum densiflorum the orchid society of karnataka. In vitro germination and micropropagation of geodorum.
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