DOCSLIB.ORG

Officers' Club

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Officers' Club PRAKRITI, 8th January 2021, Vol.III, Issue 1 Weekly magazine P R A K R I T I Quest For Nature Flora of the week Fauna of the week Bird of the week Vanda tessellata Rucervus duvaucelii Dicrurus caerulescens Checkered Vanda Swamp Deer/ Barasingha White-bellied Drongo Officers’ Club Central Academy for State Forest Service, Dehradun P R A K R I T I, 8th February, 2 0 2 1, V O L. III, I S S U E 1 FLORA OF THE WEEK Vanda t essellata Checkered Vanda Vanda tessellata or Checkered Vanda is a medium to large sized, warm growing epiphytic orchid, with a climbing stem. Stem - 30–60 cm long, stout, scandent, simple or branching aerial roots. Leaves - long, linear, narrow, 3-toothed at the tip, succulent, 15–20 cm, recurved, complicate. The plant blooms on a sub-erect, 15-50 cm long inflorescence carrying 5 to 12, fragrant, long-lived flowers. The sepals & petals have undulating margins, pale green, yellowish green or somewhat bluish with checkered lines of olive-brown on the inner surface. The outer surface is white, while the lip is violet-purple with a white margin, and usually deeper purple towards the tip. Capsules 7.5–9 cm long, narrowly clavate-oblong with acute ribs. Santhal girls use the leaves for making anklets. Scientific classification Kingdom: Plantae Distribution & Habitat Clade: Tracheophytes Occurrence - Indian subcontinent to Indochina. Clade: Angiosperms It is native to Bangladesh, India, Myanmar, Nepal, Sri Lanka. Clade: Monocots They are growing on trees in dry and intermediate zones at elevations Order: Asparagales around 1500 meters. Grow as an epiphyte, compactly clothing the tree trunks of Terminalia Family: Orchidaceae bellarica , Mangifera indica, Madhuca indica, Peltophorum Subfamily: Epidendroideae pterocarpum , etc. Genus: Vanda Species: tessellata Medicinal properties: It is used in the Malayasian Penninsula as a cure-all by drinking the juice from the compressed plant. The plant has an alkaloid, a glucoside, tannins, β-sitosterol, γ-sitosterol and a long chain aliphatic compound, fatty oils, resins and colouring matters. Roots contain tetracosyl ferrulate and β-sitosterol-D-glucoside. In Yunani system, root is used as a tonic for liver & brain; fragrant, bitter & effective against dyspepsia, rheumatism, bronchitis, piles, lumbago, toothache, & boils of the scalp. It also lessens inflammation and heal fractures. The leaves are pounded and the paste is applied to the body to bring down fever; the juice is dropped in the ear for the treatment of Otitis media and other inflammatory conditions. Photography & Compiled by: Central Academy For State Forest Service Guided by: P.O. New Forest, Dehradun- 248006, Uttarakhand Shri Kunal Satyarthi, IFS, President Officers’ Club Ph : 0135-2754575/ Fax: 0135-2756168; E-mail : [email protected] Shri Pradeep Wahule, IFS, Vice President Officers’ Club AMITA RAJ | SFS 2019 – 21 | P1 V V V a a a n n n PRAKRITI, 8th February 2021, Vol. III, Issue 1 FAUNA OF THE WEEK Rucervus duvaucelii Swamp Deer/ Barasingha Three subspecies are currently recognized: • Western swamp deer R. d. duvauceli – has splayed hooves and is adapted to the flooded tall grassland habitat in the Indo-Gangetic plain; in the early 1990s, populations in India were estimated at 1,500–2,000 individuals, and 1,500–1,900 individuals in the Sukla Phanta Wildlife Reserve of Nepal; latter population reached 2,170 individuals including 385 fawns in spring 2013. • Southern swamp deer R. d. branderi – has hard hooves and is adapted to hard ground in open sal forest with a grass understorey; survives only in the Kanha National Park, where the population numbered about 500 individuals in 1988; 300– 350 individuals were estimated at the turn of the century; and 750 in 2016. It was reintroduced into Satpura Tiger Reserve. • Eastern swamp deer R. d. ranjitsinhi – is only found in Assam, where the population numbered about 700 individuals in 1978; 400–500 individuals were estimated in Kaziranga National Park at the turn of the century. After a census conducted in 2016, 1148 individuals were estimated in the park. Swamp deer are mainly grazers. They largely feed on grasses and aquatic plants, foremost on Saccharum, Imperata cylindrica, Narenga porphyrocoma, Phragmites karka, Oryza rufipogon, Hygroryza and Hydrilla. They feed throughout the day with peaks during the mornings and late afternoons to evenings. In winter and monsoon, they drink water twice, and thrice or more in summer. In the hot season, they rest in the shade of trees during the day. FAST FACTS: RANGE & DISTRIBUTION Scientific classification Called as Barasingha because of 12 antlers Kingdom: Animalia State animal of Madhya Pradesh Habitat specialist: feeds on aquatic grasses just Phylum: Chordata beneath the surface Class: Mammalia Very difficult to translocate: die because of transit shock Order: Artiodactyla Recent translocation to Satpura National Park Family: Cervidae showing signs of success (60 deers surviving) Rucervus duvaucelii is listed on CITES Appendix Genus: Rucervus I. In India, it is included under Schedule I of Species: duvacelii the Wildlife Protection Act of 1972. In central India, the herds comprise on average about 8–20 individuals, with large herds of up to 60. There are twice as many females than males. During the rut they form large herds of adults. The breeding season lasts from September to April, and births occur after a gestation of 240–250 days in August to November. The peak is in September and October in Kanha National Park. They give birth to single calves. When alarmed, they give out shrill, baying alarm calls. The swamp deer populations outside protected areas and seasonally migrating populations are threatened by poaching for antlers and meat, which are sold in local markets. Swamp deer lost most of its former range because wetlands were converted and used for agriculture so that suitable habitat was reduced to small and isolated fragments. The remaining habitat in protected areas is threatened by the change in river dynamics, reduced water flow during summer, increasing siltation, and is further degraded by local people who cut grass, timber, fuelwood and by illegal farming on government land. Central Academy for State Forest Service Guided by: Photography & Compiled by: P.O. New Forest, Dehradun, 248006, Uttarakhand Shri Kunal Satyarthi, IFS, President Officers’ Club Ph: 0135-2754575/Fax: 0135-2756168 Shri Pradeep Wahule, IFS, Vice President, Officers’ Club Anshaj Pratap Singh Bhadoria| SFS 2019-21 I P2 P R A K R I T I, 8th February 2 0 2 1, V O L. III, I S S U E 1 BIRD OF THE WEEK Dicrurus caerulescens White-bellied Drongo The White-bellied Drongo is Geographic range: found only in the Indian • Subcontinent in India, Nepal, Dicrurus caerulescens caerulescens: Foothills of Bangladesh and Sri Lanka. They Nepal and peninsular India are mainly black in colour but • Dicrurus caerulescens with a white belly and vent. leucopygialis: Sri Lanka Young birds are however all black • Dicrurus caerulescens and can be confused with Black insularis: Sri Lanka Drongo. Description: • The adult White-bellied Drongo averages 9.4 inches (24 cm) in length. • The White-bellied Drongo has dark grey upper plumage. The tail is long and deeply forked. • The Indian race D. c. caerulescens has a pale grey under plumage - from the head to the breast, and is white from the abdomen down. • One Sri Lankan race, D. c. leucopygialis, has the white on the under plumage restricted to the vent area and undertail feathers. The young bird is duller and has a brownish-grey breast. • It has short legs and sits very upright whilst perched. Behaviour: Scientific Classification: Although they are insectivorous, they are also opportunistic and will prey on smaller birds. They used their feet while handling prey. They are aggressive and Kingdom: Animalia fearless in nature. Birds are often seen singly or in groups of 2 or 3 individuals. Phylum: Chordata The breeding season is from February to July. Two to four eggs, pale salmon coloured with reddish blotches on the broad end, are laid in the nest which Class: Aves may be 20 to 30 feet high up in the fork of a tree. Order: Passeriformes Habitat: Family: Dicruridae Generally, inhabits well-wooded deciduous tracts, bamboos, light forests, hill Genus: Dicrurus and plain, and avoids cultivation and treeless country as well as heavy Species: caerulescens evergreen forest. These birds are particularly found in bamboo and thin tree jungle. Central Academy For State Forest Service Guided by: Photography & Compiled by: P.O. New Forest, Dehradun- 248006, Uttarakhand Shri Kunal Satyarthi, IFS, President Officers’ Club Vanlalnunpuii Hmar | SFS 2019 – 21| P 3 Ph : 0135-2754575/ Fax: 0135-2756168; E-mail : [email protected] Shri Pradeep Wahule, IFS, Vice President Officers’ Club V V V a a a n n.
Load more

Recommended publications
  • Ethnomedicinal Aspects of Angiospermic Epiphytes and Parasites of Kerala, India
    Indian Journal of Traditional Knowledge Vol. 11(2), April 2012, pp. 250-258 Ethnomedicinal aspects of angiospermic epiphytes and parasites of Kerala, India AE Shanavaskhan,1,2 M Sivadasan,3* Ahmed H Alfarhan,3 & Jacob Thomas3 1Tropical Botanic Garden & Research Institute, Palode P O, Thiruvananthapuram 695 562, Kerala, India 2Present address: Natural Resources and Environment Research Institute, King Abdulaziz City for Science and Technology, Riyadh, Kingdom of Saudi Arabia 3Department of Botany & Microbiology, College of Science, King Saud University, P O Box 2455, Riyadh 11451 Kingdom of Saudi Arabia *E-mail: [email protected] Received 15.07.2009; revised 10.03.2010 Studies on ethnomedicinal aspects of epiphytes and parasites of Kerala have been conducted and it revealed that as the tribes of Kerala have a lot of terrestrial medicinal plants available around their premises, they seldom resorted to the epiphytic and parasitic medicinal plants occurring on tall trees for their use as drugs for the treatment of ailments. Hence, their knowledge on epiphytes and parasites was found to be very limited, especially among the young generation of the tribes. The present study reported the use of 28 species (16 epiphytes and 12 parasites), which represent about 13.4% of the total epiphytes and parasites present in Kerala, and they are of valuable properties and uses and are used for curing or corrective measures for several diseases. Majority of the properties and uses recorded are first reports pertaining to these special groups of plants. A thorough investigation on the phytochemistry and therapeutic values of the bioactive compounds contained in these epiphytes and parasites would result in the discovery of new and valuable drugs of high potentials and of interest to the Nutraceutical and Pharmaceutical industries.
    [Show full text]
  • A History of Orchids. a History of Discovery, Lust and Wealth
    Scientific Papers. Series B, Horticulture. Vol. LXIV, No. 1, 2020 Print ISSN 2285-5653, CD-ROM ISSN 2285-5661, Online ISSN 2286-1580, ISSN-L 2285-5653 A HISTORY OF ORCHIDS. A HISTORY OF DISCOVERY, LUST AND WEALTH Nora Eugenia D. G. ANGHELESCU1, Annie BYGRAVE2, Mihaela I. GEORGESCU1, Sorina A. PETRA1, Florin TOMA1 1University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Mărăști Blvd, District 1, Bucharest, Romania 2Self-employed, London, UK Corresponding author email: [email protected] Abstract Orchidaceae is the second largest families of flowering plants. There are approximately 900 orchid genera comprising between 28,000-32,000 species of orchids. The relationship between orchids and mankind is complex. The history of orchids’ discovery goes hand in hand with the history of humanity, encompassing discovery and adventure, witchcraft and magic, symbolism and occultism, addiction and sacrifice, lust and wealth. Historically, the Chinese were the first to cultivate orchids as medicinal plants, more than 4000 years ago. Gradually, records about orchids spread, reaching the Middle East and Europe. Around 300 B.C., Theophrastus named them for the first time orkhis. In 1737, Carl Linnaeus first used the word Orchidaceae to designate plants with similar features. The family name, Orchidaceae was fully established in 1789, by Antoine Laurent de Jussieu. In 1862, Charles Darwin published the first edition of his book, Fertilisation of Orchids. Darwin considered the adaptations of orchid flowers to their animal pollinators as being among the best examples of his idea of evolution through natural selection. Orchidology was on its way. During the 18th and the 19th centuries, orchids generated the notorious Orchid Fever where orchid-hunters turned the search for orchids into a frantic and obsessive hunt.
    [Show full text]
  • In Vitro Propagation of Endangered Orchid, Vanda Pumila Hook.F. Through Protocorms Culture
    American Journal of Plant Sciences, 2019, 10, 1220-1232 http://www.scirp.org/journal/ajps ISSN Online: 2158-2750 ISSN Print: 2158-2742 In Vitro Propagation of Endangered Orchid, Vanda pumila Hook.f. through Protocorms Culture Sabitri Maharjan, Shreeti Pradhan, Bir Bahadur Thapa, Bijaya Pant* Plant Biotechnology Laboratory, Central Department of Botany, Tribhuvan University, Kirtipur, Nepal How to cite this paper: Maharjan, S., Abstract Pradhan, S., Thapa, B.B. and Pant, B. (2019) In Vitro Propagation of Endangered The Vanda pumila is a monopodial orchid with beautiful flowers that are na- Orchid, Vanda pumila Hook.f. through tive to Thailand but now found across South Asia. The immature seeds of Protocorms Culture. American Journal of Plant Sciences, 10, 1220-1232. Vanda pumila were used for in vitro culture and then the protocorms devel- https://doi.org/10.4236/ajps.2019.107087 oped were used as explants for seedling development and mass propagation. Protocorms were cultured on 1/2 MS (Murashige and Skoog, 1962) medium Received: May 27, 2019 fortified separately with Kinetin (Kn), 6-Benzyl amino purine (BAP) and Accepted: July 26, 2019 Published: July 29, 2019 Gibberellic Acid (GA3) each in different concentrations as (0.5 mg/L, 1.0 mg/L and 2.0 mg/L) well as each on each concentrations of each medium Copyright © 2019 by author(s) and supplemented with 5% and 10% coconut water (CW) respectively. The great- Scientific Research Publishing Inc. This work is licensed under the Creative est number of shoots (9.50 ± 0.29 shoots per culture) was developed on 1/2 Commons Attribution International MS medium fortified with 1.0 mg/L Kn plus 10% CW and the longest shoots License (CC BY 4.0).
    [Show full text]
  • 21St August-2013 Research Article ORCHID SPECIES DIVERSI
    Received: 11th August-2013 Revised: 19th August -2013 Accepted: 21st August-2013 Research article ORCHID SPECIES DIVERSITY OF EAST NIMAR, MADHYA PRADESH, INDIA S. Mujaffar a1, Shakun Mishrab, V.S. Deodab, S. Moinuddinb & S. Mustakimb a1Department of Botany, Govt. U.G. College, Bhikangaon, District-Khanrgaon-451331, M.P. bDepartment of Botany, S.N. Govt. P.G. College, Khandwa-450001, M.P. *Email : [email protected] ABSTRACT : Botanical explorations in East Nimar were conducted during 2010-2012. A total of 18 orchids species belonging to 11 genera (including cultivated species) have been recorded from the region. Of them, 13 species with 7 genera are terrestrial, 5 species with 4 genera are epiphytes and single genera with single species are semi saprophytes. Key words: Orchid Species Diversity; East Nimar; Madhya Pradesh; India. INTRODUCTION Orchidaceae, is regarded as second largest family of flowering plants. It includes 25,000-35,000 species with 800-1,000 genera [2]. About 1300 species with 140 genera of orchid species are found in India with temperate Himalayas as their natural home [11]. From Madhya Pradesh 89 species of orchids under 34 genera were reported [9]. Orchidaceae, includes herbacous monocots and display unique feature like, mycorrhizal relationship, bractaceous or petaloid, 3-sepals, irregular 3-petals, pollinia, distinct mechanism of pollination, numerous small seeds. [3] This orchids are facing a great threat from the anthropogenic factors and change in environmental conditions, and hence their conservation is necessary [4]. MATERIALS AND METHODS Study area : East Nimar region comprises of two districts namely Khandwa and Burhanpur. It is situated between 210 5’ – 220 25’ N and 750 57’ - 770 13’ E.
    [Show full text]
  • Effect of Different Ph on in Vitro Seed Germination of Vanda Tessellata (Roxb.)Hook.Ex.G an Endangered Medicinal Orchid
    Advances in Life Science and Technology www.iiste.org ISSN 2224-7181 (Paper) ISSN 2225-062X (Online) Vol 8, 2013 - Selected from International Conference on Recent Trends in Applied Sciences with Engineering Applications Effect of Different pH on In vitro Seed Germination of Vanda tessellata (Roxb.)Hook.Ex.G an Endangered Medicinal Orchid . Bindiya Prakash 1, Dr.Ritu Thakur Bais 2,Dr.Prathibha Singh 3, Dr.Shagufta Khan 4 1,2&3 Department of Botany, Sarojini Naidu Gov. Girls Post Graduate(Autonomus) College Shivaji Nagar,Bhopal(M.P)India. 4.GrowTip Biotech 35/A Hazrat Nizamuddin Colony,Bhopal-462010(M.P) India. E mail:[email protected] Abstract The present investigation deals with a study of In-vitro seed germination of an endangered medicinal orchid Vanda tessellata at different pH (3.5, 4.5, 5.5, 6.5,). Immature seeds obtained from green pods were successfully germinated on basal media MS without various combinations of growth hormones. Highest seed germination (95±0.17%) were observed at 5.5 pH, whereas the medium which is adjusted at 3.5 and 6.5 pH showed poor seed germination. Keywords:- Vanda tessellata ,seed germination 1.Introduction Vanda tessellata (Roxb.) Hook. Ex. G. is an endangered medicinal plant belong to the family Orchidaceae. Family orchidaceae is well known as ornamental plant which have attractive flower and high purchase prices. The Orchidaceae were reported that has belonging a lot of species grew in the world, consisting of 35,000 species and 800 genera Singh et.al., (2007). The orchids were observed to produce abundant seeds in their fruit capsules.
    [Show full text]
  • Micropropagation of Vanda Tessellata (Roxb.) Hook. Ex G. Don
    Micropropagation of Vanda tessellata (Roxb.) Hook. ex G. Don A Dissertation submitted for the partial fulfillment of the requirements of Master’s Degree in Botany By Bijaya Bahadur Malla Plant Biotechnology Unit TU Regd. No. 5-1-48-2909-2004 Exam Roll No. 18235 Batch: 2068/70 Central Department of Botany Tribhuvan University Kirtipur, Kathmandu, Nepal 2016 RECOMMENDATION Kirtipur, Ktm. Nepal 27thAug 2016 This is to certify that the dissertation entitled „Micropropagation of Vanda tessellata (Roxb.)Hook.ex G. Don‟ submitted by Mr. Bijaya Bahadur Malla for the partial fulfillment of the requirement of Master’s Degree in Botanyhas been carried out under my supervision and guidance. The result of this work has not yet been submitted for any other degree. Therefore, we recommend his work for approval and acceptance. ……………………………………………………… Supervisor Bijaya Pant, PhD Professor Central Department of Botany Tribhuvan University, Nepal. II LETTER OF APPROVAL The dissertation work submitted by Mr. Bijaya Bahadur Malla entitled “Micropropagation of Vanda tessellata(Roxb.) Hook.ex G. Don” has been accepted for the partial fulfillment of M.Sc. in Botany. Expert Committee ……………………………………………………… …………………………………………………….. Supervisor Head of Department Bijaya Pant, PhD Mohan Siwakoti, PhD Professor Professor Central Department of Botany Central Department of Botany Tribhuvan University, Nepal. Tribhuvan University, Nepal ……………………………………………………. ……………………………………………………. External Examiner Internal Examiner Sanu Devi Joshi, PhD Ms. Shreeti Pradhan Professor Assistant Professor Academician, NAST Central department of Botany Date of Examination: 27th August, 2016 III ACKNOWLEDGEMENTS It is my great pleasure to express my gratitude to my supervisor Prof. Dr. Bijaya Pant (Prof., C.D.B., T.U.) for her noble guidance, continuous encouragement, best propositions, convenient criticism and reliable solutions and inspirations during my research work.
    [Show full text]
  • Vro Orchid Catalogue
    VRO ORCHID CATALOGUE Picture Name Parentage Size Code Price Description Madagascar, Comores Flowering Aeranthes caudata S307 R 265,00 Grow in cool to warm conditions in shaded Size conditions Aerides Korat Koki x Aeridovanda Full Flowering Vanda VHT68 R 250,00 Free flowering orange flowers Moon Size Bangkhunthian Aliceara Winter Very appealing, fuller Brassia-like sparkling white Brat Cartagena x Flowering Wonderland 'White OSH04 R 175,00 flowers with small maroon markings. Onc Gledhow Size Fairy' Long lasting Angraecum Flowering AFRICAN Dwarf epiphyte; attractive leaf AS08 R 150,00 distichum Size structure; tiny, white flowers. Rare. Ascocenda Gold Ascocenda Gold Our best yellow - Charming very large yellow Flowering Lover x Ascocenda Lover x Ascocenda VHT52 R 350,00 flowers with some fine mahogany spotting, from Size Boris Boris two excellent yellow parents. Ascocenda V. Gordon Dillon x Kulwadee Flowering Bold dark maroon spotting with some pink Ascda. Guo Chia VHT64 R 285,00 Fragrance 'Klai Size flushing Long Song Jed' Ascocenda V. Gordon Dillon x Flowering Kulwadee Ascda. Guo Chia VHT63 R 285,00 Stunning maroon-spotted flowers Size Fragrance 'Sib Hok' Long Ascocenda V. Gordon Dillon x Kulwadee Flowering Ascda. Guo Chia VHT65 R 285,00 Bold dark maroon-red spotting Fragrance 'Song Size Long Ng' HYBRID Ascocenda Ascocenda Kulwadee Lavender flower crossed onto a purple-grey - an Kulwadee Flowering Fragrance x Vanda VHT75 R 285,00 array of colours emerged in the progeny all of Fragrance x Vanda Size Pitchaon them spotted - Maroon, pink, blue spots on Pitchaon lighter pale cream to yellow background. HYBRID Ascocenda Laksi x Ascocenda Laksi x Free flowering, smaller flowers Flowering Ascocenda Ascocenda VHT81 R 375,00 Bright red x blue - the first ones to open were Size Rakpaibulsombat Rakpaibulsombat beautiful purple-blue spotted flowers.
    [Show full text]
  • New Distributional Records of Vanda Tessellata (Roxb.) Hook, Ex G
    © 2019 JETIR June 2019, Volume 6, Issue 6 www.jetir.org (ISSN-2349-5162) NEW DISTRIBUTIONAL RECORDS OF VANDA TESSELLATA (ROXB.) HOOK, EX G. DON AND VANDA TESTACEA (LINDL.) RCHB., FOR SATPUDA RANGE OF JALGAON DISTRICT OF MAHARASHTRA Tanveer A. Khan* and Sopan M. Salunkhe** *Department of Botany, H. J. Thim College of Arts and Science, Mehrun, Jalgaon-425001 (M.S.), India. **Department of Botany, D.D.S.P. College Erandol, Jalgaon (M.S.) India. Abstract The present paper deals with addition of Vanda tessellata (Roxb.) Hook and Vanda testacea (Lindl.) Reichb., these species are reported for the first time for the Satpuda range of Jalgaon district. The present study gives report of 2 taxa from the study regions. Frequent visits were made during January to May in the study region and specimens were collected and processed. The species collected has been identified and authenticated and the herbarium specimens have been deposited in the Department of Botany, H.J.Thim College of Arts and Science Mehrun, Jalgaon. The detailed description of the present investigation along with Photograph are provided below. Key words: New records, Satpuda range, Jalgaon district, Maharashtra. INTRODUCTION Vanda W. Jones ex R. Br. About 35 species; Indo-Malesia. Australia and Philippine Islands: 11 species of Vanda are known from India. 2 species in Maharashtra and 3 in Madhya Pradesh. Vanda W. Jones ex R. Br. is one of the most popular genera of Orchids. The well spread sepals and petals of all Vanda species with vibrant colour combinations and longevity are appreciated by all. Jalgaon district lies between 200 and 210 North latitude and 740 55' and 760 28' East longitudes.
    [Show full text]
  • MASS PROPAGATION of Plbs DERIVED from LEAF and SHOOTS of VANDA TESSELLATA (ROXB.) HOOK
    Bangladesh J. Bot. 46(2): 775-782, 2017 (June) MASS PROPAGATION OF PLBs DERIVED FROM LEAF AND SHOOTS OF VANDA TESSELLATA (ROXB.) HOOK. EX G. DON AN ENDANGERED MEDICINAL ORCHID IN BANGLADESH BAKUL BHATTACHARJEE AND SM SHAHINUL ISLAM* Plant Genetic Engineering Laboratory, Institute of Biological Sciences, University of Rajshahi, Rajshahi-6205, Bangladesh Keywords: Endangered, Leaf and shoot, Mass propagation, Orchid, PLBs Abstract Somatic embryos were induced from leaf and shoot explants of Vanda tessellata (Roxb.) Hook. ex G. Don cultured on MS medium supplemented with BAP, NAA and Kn. BAP (0.5 mg/l) and Kn (1.0 mg/l) showed better performance on somatic embryogenesis with embryos forming mostly near the cut ends of stem and leaf surfaces. Maturation of somatic embryos were produced on the same induction medium. Germination and regeneration efficiency of somatic embryos were recorded as highest (60.83%) in half strength of MS medium supplemented with 1.0 mg/l BAP. Maximum number of multiple shoots (10.80 ± 0.22) was obtained in MS medium with 1.5 mg/l BAP and 1.0 mg/l NAA. Individual shoots produced highest number of adventitious roots (5.0 ± 0.37) on half strength of MS medium supplemented with 0.5 mg/l IAA and 0.5 mg/l NAA. This protocol provides a rapid and simple way to regenerate plants through somatic embryogenesis which can improve the mass propagation, advanced biotechnological work and conservation of orchids in future. Introduction Orchidaceae is one of the largest angiosperm families comprising 800 genera and 25000 to 30000 species spread all over the world (Chugh et al.
    [Show full text]
  • Conservation of Medicinal Orchids Been Accomplished with Orchids for Horticultural Editorial Purposes
    ORCHID CONSERVATION NEWS The Newsletter of the Orchid Specialist Group of the IUCN Species Survival Commission Issue 1 April 2015 Conservation of Medicinal Orchids been accomplished with orchids for horticultural Editorial purposes. As you will appreciate from the articles in this issue, There are many paths to species vulnerability that can orchids have traditional use as medicine in many parts lead to extinction. Overcollection for food, for medicine of our global community. We look forward to more or for horticulture are just a few of the many challenges community-based conservation projects and innovative to species survival. There are also random, destructive ideas to consider in the future. natural disasters such as earthquakes that struck Nepal on April 25, 2015. Each challenge impacts human and Marilyn H. S. Light, Editor [email protected] orchid survival differently but the role of all ecosystem ___________________ components to survival and sustainability of populations cannot be overlooked. It might not take much to disrupt or exploit an ecosystem but it can equally be possible, given time, to recover a sustainable balance. There are many paths toward achieving sustainability. In Nepal, conservation initiatives have been developed from strong, compassionate leadership to further public awareness and education, community involvement, as well as in-situ and ex-situ methodologies. Bangladesh, particularly the south east part of the country, has a diverse plant community but some orchid species, once widely distributed, are being impacted by exploitation Nepal Photo: Bijaya Pant for medicinal use. Conservation measures such as tissue culture methodologies are suggested but standard protocols must be developed to ensure that diversity is Our orchid conservation effort in two maintained, that bioactivity across a species population community forests of central Nepal is assessed so that plants are available for a range of future uses.
    [Show full text]
  • Toskar Newsletter
    TOSKAR NEWSLETTER A Quarterly Newsletter of the Orchid Society of Karnataka (TOSKAR) Vol. No. 5; Issue: i; 2018 THE ORCHID SOCIETY OF KARNATAKA www.toskar.org ● [email protected] From the Editor’s Desk TOSKAR NEWSLETTER 21st March 2018 It is spring and summer time and happy time for the EDITORIAL BOARD orchids as well as for the growers as there will be plenty (Vide Circular No. TOSKAR/2016 of blooms all round. The Dendrobium and other species Dated 20th May 2016) have started putting out blooms. It is lovely to watch the timing of the blooms of Dendrobiums from North East. Starting from Dendrobium heterocarpum, D. primulinum, Chairman D. farmeri and now D. parishii is ready. In few places Dr. Sadananda Hegde even, D. chryosotoxum is already bloomed. I am still waiting for that as well as for D. crystallinum and D. bensoniae. Members Looking at the last Bi Monthly meeting and the AGM of Mr. S. G. Ramakumar the society, it was heartening to note that the display Mr. Sriram Kumar was like a mini show! Thanks to all the members who actively took part in displaying the blooming orchids. Editor Month after month and year after year the quality of the Dr. K. S. Shashidhar blooms displayed by the members is improving and that speaks volumes of the eforts of the members and also Associate Editor the ideal platform provided by TOSKAR. Once again Mr. Ravee Bhat congratulations for all the members for these wonderful displays. But still I urge and request two things from the members, one is whatever you are doing is fantastic and the result is seen through the lovely blooms you are getting and why not share some of the things you do to get these results?, After all TOSKAR is providing the platform for this very purpose, we will help you in that, if you need.
    [Show full text]
  • Orchid Research Newsletter No. 66
    Orchid Research Newsletter No. 66 When the Molecular Systematics Laboratory at the Royal Botanic Gardens, Kew, first opened under the leadership of Mark Chase and Mike Bennett as Keeper of the Jodrell, the main target marker was rbcL for family-wide systematic studies of Orchidaceae and other families. Internal transcribed spacers of nuclear ribosomal DNA were used for studies below the family level. Those of us unfortunate to have lived through those days of manual sequencing in the early 1990s know how laborious it was to label nucleotides with radioactive phosphorus 32 or sulfur 35 with all the safety measures that that entailed, pour polyacrylamide gels between two glass plates without even the smallest air bubble, expose the sequencing gel to x-ray film, and then manually call the bases one by one off the autoradiogram, hoping to get 100 bases of the more than 1300 base pairs in the rbcL sequence and then enter them into the computer database. In many cases, the results were ambiguous, which entailed judgment calls. And this did not even include data analysis with software much, much slower than today. All this work produced only a trickle of data and a lack of strong support for many branches leading to the major clades. Manna from heaven came in the form of automated sequencing later that decade. Automated sequencers used the Sanger method, which relied on the introduction of dideoxynucleotides into the growing DNA strand by DNA polymerase, creating fragments separated by size on the gel by electrophoresis. Nucleotides were labeled by fluorescent dyes rather than sulfur 35, and read by a laser.
    [Show full text]