Frontmatter: Om Utvecklingen Af De Sekundära Kärlknippena Hos Dracæna Och Yucca Af Hedvig Lovén. Essay: Figurförklaring, De ...
1887 - Gale Group | NCCO-STM 1of2
Pei‐Luen Lu, Clifford W. Morden,
... history of the world-wide medicinal plant genus, Dracaena, and the plant genus Pleomele. The debate concerning the relationship between Dracaena and Pleomele has continued till date - some botanists continue to include Pleomele within Dracaena but others claimed to separate the two genera. Dracaena is a genus comprising of about 40-100 ... only classified well in Hawaii, but confused with Dracaena in the other parts of Asia. Phylogenetic relationship among the 33 taxa within the Dracaena and Pleomele were reconstructed. DNA sequences from the ...
Tópico(s): Plant Pathogens and Fungal Diseases
1970 - | Botanica Orientalis Journal of Plant Science
Svoboda V. Pennisi, Dennis B. McConnell, Laurie B. Gower, Michael E. Kane, Terry W. Lucansky,
... Access Periplasmic cuticular calcium oxalate crystal deposition in Dracaena sanderiana Svoboda V. Pennisi, Svoboda V. Pennisi University ... subcuticular areas are reported here for the angiosperm Dracaena sanderiana. • Position, development and identification of crystals in ... site of initial crystallization of extracellular crystals in Dracaena marginata and Sempervivum wulfenii is stated to be ... later translocation to the cell walls (Fink, 1991b). Dracaena sanderiana possesses a variety of biogenic CO deposits ...
Tópico(s): Calcium Carbonate Crystallization and Inhibition
2001 - Wiley | New Phytologist
Martin Rejžek, Martin Svátek, Jan Šebesta, Radim Adolt, Petr Maděra, Radim Matula,
Dracaena cinnabari, the dominant endemic tree of Socotra Island (Yemen), is in serious decline. The effect this ... unknown. We aimed to identify plants associated with Dracaena understorey and assess the importance of Dracaena for maintaining plant diversity. A total of 272 relevés were sampled in Dracaena understorey and in open sites to record the ... analysed. We also recorded woody species composition of Dracaena stands and investigated spatial relations between Dracaena and other mature woody plants. Understorey plant species ...
Tópico(s): Ethnobotanical and Medicinal Plants Studies
2016 - Elsevier BV | Biological Conservation
Zhonglian Zhang, Yue Zhang, Meifang Song, Yan-Hong Guan, Xiaojun Ma,
The taxonomy and nomenclature of Dracaena plants are much disputed, particularly for several Dracaena species in Asia. However, neither morphological features nor common DNA regions are ideal for identification of Dracaena spp. Meanwhile, although multiple Dracaena spp. are sources of the rare traditional medicine ... the People's Republic of China has defined Dracaena cochinchinensis as the only source plant. The inaccurate identification of Dracaena spp. will inevitably affect the clinical efficacy of ...
Tópico(s): Genomics and Phylogenetic Studies
2019 - Frontiers Media | Frontiers in Pharmacology
Thomas Denk, Tuncay H. Güner, Guido W. Grimm,
... biogeographic pattern, is the "dragon tree group" within Dracaena (Asparagaceae). However, little is known about the evolutionary ... of apical leaf rosettes and detached leaves of Dracaena tayfunii spec. nov. were compared to modern Dracaena using the architecture of leaf-bearing branches, leaf ... light and electron scanning microscopy. The palaeoecology of Dracaena was inferred using the depositional setting and associated ... taxa. The ca. 16 million-year-old (Ma) Dracaena from western Anatolia shows a character combination restricted ...
Tópico(s): Phytochemical Studies and Bioactivities
2013 - Elsevier BV | Review of Palaeobotany and Palynology
V. Ilodibia Chinyere, U Ugwu Rachael, U Okeke C, E Akachukwu Ebele, A Ezeabara Chinelo,
Phytochemical evaluation of leaves, stems and roots of Dracaena arborea (Link) and Dracaena mannii (Bak) present in southeastern Nigeria was carried ... the leaves, stems and roots of the two Dracaena species with some parts lacking some of the ... statistical difference in the phytochemistry of the two Dracaena species. The implication is that the two species ... this justified their placement in the same genus Dracaena while the slight differences between them support their ... the possible sources of these phytochemicals. Key words: Dracaena arborea, Dracaena mannii, phytochemicals.
Tópico(s): Pharmacological Effects of Medicinal Plants
2015 - Academic Journals | African Journal of Plant Science
Xupo Ding, Jia-Hong Zhu, Hao Wang, Huiqin Chen, Wen-Li Mei,
Dragon’s blood that is extracted from Dracaena plants has been widely used as traditional medicine in various ancient cultures. The application of dragon’s blood has a cherished history in ... original plants were not discovered for some period. Dracaena cochinchinensis and Dracaena cambodiana were successively discovered in southern China during ... production of dragon’s blood from these two Dracaena species, whereas these results have not been previously ... dragon’s blood development based on these two Dracaena species, in particular, using tissue cultures seedlings and ...
Tópico(s): Chromatography in Natural Products
2020 - Multidisciplinary Digital Publishing Institute | Forests
Nadezhda Nadezhdina, Roman Plichta, Valeriy Nadezhdin, Roman Gebauer, Radek Jupa, Hana Habrová, Petr Maděra,
Water relations for two remote populations of Dracaena tree species from the dragon tree group, Dracaena cinnabari Balfour f. and Dracaena draco (L.) L., were studied to test our hypothesis that ... using the heat field deformation method for four Dracaena seedlings grown in one glasshouse and two greenhouses, ... of reverse sap flow at night in both Dracaena species was consistent with a staining experiment. Vapour ... be the main driver for transpiration for both Dracaena species. However, the relationship between VPD and sap ...
Tópico(s): Irrigation Practices and Water Management
2015 - CSIRO Publishing | Functional Plant Biology
RATIDZAYI TAKAWIRA-NYENYA, Ladislav Mucina, Warren Cardinal‐McTeague, Kevin R. Thiele,
The evolutionary history of the dracaenoid genera Dracaena and Sansevieria (Asparagaceae, Nolinoideae) remains poorly resolved, despite long-recognised issues with their generic boundaries and increased attention paid by both horticulturalists and ... to: (1) elucidate evolutionary relationships within and between Dracaena and Sansevieria using molecular phylogenetic inference of both ... evidence. In total, we sampled 21 accessions of Dracaena (ca. 19 species), 27 accessions of Sansevieria (ca. ... The dracaenoids constitute a strongly supported monophyletic group. Dracaena was resolved as a paraphyletic grade embedded with ...
Tópico(s): Plant Diversity and Evolution
2018 - Q15088586 | Phytotaxa
Fang Yao, Jianbing Sun, Tang Chao-Qun, Wuzhong Ni,
... candidate wetland plants, such as Carex taliensis Franch, Dracaena sanderiana Virens, Impatiens balsamina, rush (Juncus effusus L.), ... L. > Sesbania cannabina Poir > Salvia plebeia R. Br. > Dracaena sanderiana for ammonium; Carex taliensis Franch > Oriza Sativa ... balsamina > Morus indica L. > Salvia plebeia R. Br. > Dracaena sanderiana for nitrate; Oriza Sativa L. > Juncus effusus L. > Salvia plebeia R. Br. > Dracaena sanderiana > Impatiens balsamina > Morus indica L. Sesbania cannabina ... Carex taliensis Franch for phosphate. Sesbania cannabina Poir., Dracaena sanderiana Virens and Salvia plebeia R. Br. had ...
Tópico(s): Innovations in Aquaponics and Hydroponics Systems
2011 - Elsevier BV | Procedia Environmental Sciences
Modeste Wankeu‐Nya, Adrian Florea, Ștefana Bâlici, Pierre Watcho, Horea Vladi Matei, Albert Kamanyi,
... the effects of aqueous and ethanol extracts of Dracaena arborea in streptozotocin-induced ultra-structural spermatogenic alterations ... kg), sildenafil citrate (1.44 mg/kg) or Dracaena arborea aqueous (500 mg/kg) and ethanol (100 ... analysis of spermatogenesis. Results Our results showed that Dracaena arborea was devoid of any anti-hyperglycemic activity. ... sperm germ cells. Administration of sildenafil citrate and Dracaena arborea extracts to the diabetic rats improved testes ... with the aqueous extract (500 mg/kg) of Dracaena arborea . Conclusion Dracaena arborea improves testes morphology and ...
Tópico(s): Plant Toxicity and Pharmacological Properties
2013 - BioMed Central | BMC Complementary and Alternative Medicine
Nadezhda Nadezhdina, V. Nadezhdin,
... by dense rosette type crowns, to which also Dracaena species belong. In this paper, we demonstrate that Dracaena nebulophytes are able to direct water intercepted from ... leaf axil watering (LAW) experiments in four young Dracaena plants (two Dracaena cinnabari and two Dracaena draco) while simultaneously measuring sap flow in plant ... in the results confirm the hypothesis that the Dracaena species are able to direct atmospheric water through ...
Tópico(s): Plant Surface Properties and Treatments
2017 - Elsevier BV | Environmental and Experimental Botany
RATIDZAYI TAKAWIRA-NYENYA, Joachim Thiede, Ladislav Mucina,
... a monophyletic clade nested within the paraphyletic genus Dracaena. Consequently, the genus Sansevieria was sunk into the genus Dracaena and new combinations were published to accommodate the transfer of taxa from Sansevieria into Dracaena. Since the inclusion of Sansevieria into Dracaena, new taxa have been published in Sansevieria. This ... fourteen name changes including twelve new combinations in Dracaena and two rank adjustments, one new synonym, and ... aiming at further standardisation of the taxonomy of Dracaena.
Tópico(s): Plant and Fungal Species Descriptions
2021 - Q15088586 | Phytotaxa
Whenever I encountered the dracaena plant when hiking through the forests of North Pare, Tanzania, my companions found it significant. Ah, here we see an ... I had long considered the social functions of dracaena in Pare to be examples of the arbitrary ... surprised- astonished, really- when I found references to dracaena in West African sacred groves. It is a ... to make sense of the ethnobotanical fact that dracaena carries a complex cultural load in northeastern Tanzania ... East African Regional System Unraveling the meanings of dracaena in northeastern Tanzania requires attention to the social ...
Tópico(s): African history and culture analysis
2008 - Boston University | The International Journal of African Historical Studies
S. Srikrishnah, S. E. Peiris, S. Sutharsan,
... area and biomass production of three varieties of dracaena (Dracaena sanderiana L.) in the dry zone (Batticaloa district) ... There was a significant interaction between varieties of dracaena and the shade levels on leaf area and ... that, 70% shade level is suitable for growing dracaena varieties in the dry zone of Sri Lanka as the growth of dracaena varieties were higher than the other shade levels. ...
Tópico(s): Plant Physiology and Cultivation Studies
2012 - Postgraduate Institute of Agriculture | Tropical Agricultural Research
Zakaria Baka, Knut Krzywinski,
The Dracaena ombet, which is endemic to the Red Sea mountain chain, are now nearly extinct. The combined effect ... fungal species were isolated from leaf spots on Dracaena ombet. Cladosporium dracaenatum, Alternaria alternata, Aspergillus niger, Curvularia ... and Alternaria alternata, to detect the compatibility between Dracaena leaves and these pathogens. Scanning and transmission electron ... colonization of these pathogens in leaf tissues of Dracaena. Remarkable ultrastructural changes in chloroplasts, mitochondria, and microbodies ...
Tópico(s): Polysaccharides Composition and Applications
1996 - Elsevier BV | Microbiological Research
Pei‐Luen Lu, Clifford W. Morden,
... global evolutionary pattern among the dracaenoid plant genera Dracaena, Pleomele, and Sansevieria has remained ambiguous. Their classification ... remainder of the dracaenoid clade; 3) species of Dracaena and the remaining Pleomele are intermixed; 4) Sansevieria is monophyletic, but nested within Dracaena; 5) the Central American species D. americana and ... genus, Chrysodracon, and new species combinations are made. Dracaena is paraphyletic in regards to Sansevieria and those species should be recognized as species of Dracaena. The polyphyletic status of Pleomele species nested within ...
Tópico(s): Phytochemical Studies and Bioactivities
2014 - American Society of Plant Taxonomists | Systematic Botany
Kalpana Sharma, Joyce L. Merritt, Aaron J. Palmateer, Erica M. Goss, Matthew E. Smith, T. S. Schubert, Robert S. Johnson, A.H.C. van Bruggen,
International trade in ornamental plants has increased worldwide. Dracaena is the genus most frequently imported into the ... in the United States could be imported with Dracaena plant materials. In 2009, lucky bamboo ( Dracaena sanderiana ) with anthracnose symptoms was found in Florida. ... 2 to 3 months. The reaction of several Dracaena species and varieties to the two Colletotrichum species ... complex was least pathogenic to all of the Dracaena spp. and varieties. Hot water treatments were not ...
Tópico(s): Tree Root and Stability Studies
2014 - American Society for Horticultural Science | HortScience
Mohammad Javed Ansari, Ahmad Al-Ghamdi, Noori Al-Waili, Nuru Adgaba, Khalid Ali Khan, Abdulraouf Amro,
Background: Few studies showed that Dracaena cinnabari resin, collected from Soqotra Island, Yemen, has antimicrobial activity. This study is the first to investigate antimicrobial activity of the ... and Methods: Antimicrobial activity of ethanolic extract of Dracaena cinnabari resin from Soqotra Island on multidrug resistant ... broth micro dilution method.Results: Ethanolic extract of Dracaena cinnabari resin showed a considerable antimicrobial activity against ... μg/mL (w/v).Conclusion: Ethanolic extract of Dracaena cinnabari resin has a considerable antimicrobial activity against ...
Tópico(s): Plant Pathogens and Fungal Diseases
2016 - African Traditional Herbal Medicine Supporters Initiative (ATHMSI) | African Journal of Traditional Complementary and Alternative Medicines
Águedo Marrero, Rafael Almeida, MANUEL GONZÁLEZ-MARTÍN,
The arborescent taxa of Dracaena which form the dragon tree group comprise five species found in Macaronesia, Morocco (D. draco), East Africa (D. ombet, D. ... D. cinnabari). A new species of dragon tree, Dracaena tamaranae A. Marrero, R. S. Almeida & M. Gonzalez- ... species differs from D. draco, the only other Dracaena species currently known in Macaronesia, in having a ... to the East African and Arabian species of Dracaena. In contrast, D. draco appears to be related ... Our study indicates two independent colonization events for Dracaena in Macaronesia. In addition, we suggest that the ...
Tópico(s): Phytochemical Studies and Bioactivities
1998 - Oxford University Press | Botanical Journal of the Linnean Society
Christine E. Edwards, Burgund Bassüner, Chris Birkinshaw, Christian Camara, Adolphe Lehavana, Porter P. Lowry, James S. Miller, Andrew Wyatt, Peter Jackson,
... depends on the overall information about the species. Dracaena umbraculifera was described in 1797 from a cultivated ... conservation value. We sequenced a cpDNA region of Dracaena from Mauritius, botanical garden accessions labelled as D. ... a private garden. We included GenBank accessions of Dracaena from Madagascar and other locations and reconstructed the ... that D. umbraculifera is more closely related to Dracaena reflexa from Madagascar than to Mauritian Dracaena . As anecdotal information indicated that the living D. ...
Tópico(s): Genetic diversity and population structure
2018 - Cambridge University Press | Oryx
Xupo Ding, Wen-Li Mei, Sheng‐Zhuo Huang, Hui Wang, Jia-Hong Zhu, Wei Hu, Zehong Ding, Weiwei Tie, Shiqing Peng, Hao‐Fu Dai,
Dragon's blood collected from the genus Dracaena is used as a renowned traditional medicine in various cultures worldwide. However, the genetics of the genus Dracaena and the formation mechanism of dragon's blood ... draft genome reference assembly of an elite Chinese Dracaena species, Dracaena cambodiana, from next-generation sequencing data with 89. ... represents the first genome-wide characterization of a Dracaena species in the Asparagaceae.
Tópico(s): Plant Pathogens and Fungal Diseases
2018 - Public Library of Science | PLoS ONE
Jing Sun, Jiani Liu, Bei Fan, Xiaonan Chen, Dao-Ran Pang, Jiao Zheng, Qian Zhang, Yunfang Zhao, Wei Xiao, Pengfei Tu, Yuelin Song, Jun Li,
... pharmacological activities, quality control, and metabolism of six Dracaena plants, namely, Dracaena cochinchinensis (Lour.) S.C.Chen, D. cambodiana Pierre ... ChemSpider, etc., was performed by using the keywords “Dracaena,” “dragon's blood,” as well as the Latin names of the six Dracaena species. In addition, relevant textbooks, patents, reviews, and ... oligomers are the primary chemical clusters distributed in Dracaena plants. Pharmacological activities including analgesic, anti-inflammatory, antibacterial, ...
Tópico(s): Phytochemicals and Antioxidant Activities
2019 - Elsevier BV | Journal of Ethnopharmacology
Konrad Celiński, Hanna Kijak, Justyna Wiland‐Szymańska,
Dracaena draco, which belongs to the genus Dracaena, is an endemic succulent of the Canary Islands. Although it is one of the most popular and widely grown ornamental plants in the ... to elucidate phylogenetic relationships, particularly within the genus Dracaena. The D. draco chloroplast genome is 155,422 ... complete chloroplast genomes of Asparagales strongly suggested that Dracaena species form one monophyletic group, and that close ... further taxonomic, evolutionary and phylogenetic studies within the Dracaena genus.
Tópico(s): Genomics and Phylogenetic Studies
2020 - Multidisciplinary Digital Publishing Institute | Forests
Yang Liu, Xiangsheng Zhao, Ruyu Yao, Chuang‐Jun Li, Zhonglian Zhang, Yongsheng Xu, Jianhe Wei,
... refers mainly to the crimson resin of many Dracaena spp. DB has been used by different traditional ... dysentery and ulcers for over 1000 years. 11 Dracaena spp. and 3 subspecies are reported to be ... resin. However, the resources are extremely deficient. Several Dracaena spp. are in threatened status. Over 300 compounds have been isolated from Dracaena spp., mainly including flavonoids, steroids, and phenolics. DB ... It is necessary to expand the cultivation of Dracaena spp. and fully understand the mechanism underlying the ...
Tópico(s): Chromatography in Natural Products
2021 - World Scientific | The American Journal of Chinese Medicine
Philips Mathew, B. Vijayavalli,
... of three species of Cordyline and ten of Dracaena is reported from South India. The gametic numbers ... species of Cordyline is n=19 and in Dracaena are n=18, 19 and 20, of which ... and small sized chromosomes. The x=20 in Dracaena is postulated to be the earlier evolved one ... is considered. Hutchinson's treatment of Cordyline and Dracaena along with Sansevieria and Cohnia in the same ...
Tópico(s): Plant Diversity and Evolution
1989 - International Society of Cytology | CYTOLOGIA
Sven Buerki, Martin W. Callmander, Fanny Schüpfer, Mamy Ravokatra, Philippe Küpfer, Nadir Álvarez,
Malagasy Dracaena (Ruscaceae) are divided into four species and 14 varieties, all of them showing a high level of ... between those entangled entities, a span of Malagasy Dracaena were sampled and analyzed using cpDNA sequences and ... a recent origin of the Malagasy species of Dracaena with an incomplete sorting of chloroplast lineages; (2) ... difficulty of defining evolutionarily significant units in Malagasy Dracaena, emphasizing the complex speciation processes taking place in ...
Tópico(s): Plant and Fungal Species Descriptions
2009 - Springer Science+Business Media | Plant Systematics and Evolution
Iván Durán, Águedo Marrero, Fouad Msanda, Moulay Chérif Harrouni, Michael Gruenstaeudl, Jairo Patiño, Juli Caujapé‐Castells, Carlos García‐Verdugo,
Abstract The genus Dracaena in Macaronesia comprises two threatened species of arborescent monocots that are often associated with one of the most intriguing ... information is, however, largely missing for the Macaronesian Dracaena taxa (“MDT”, hereafter), and the biogeographic or population ... we generated plastid DNA sequence data of 14 Dracaena populations representing the entire natural distribution of MDT ( ... our results suggested that human‐assisted expansion of Dracaena inflates the extant phylogeographic signal by non‐random ...
Tópico(s): Genetic diversity and population structure
2020 - Wiley | Taxon
Sumathi Rajamani, NLK Amarathunga, SA Krishnarajah, JP Eeswara,
... on vase life of cut leaves of three Dracaena species Dracaena marginata ‘bi colour’, Dracaena sanderiana ‘white’ and Dracaena deremensis were investigated. Deionized water (DIW) was used ... thus enhance the marketability of cut leaves of Dracaena marginata ‘bi colour’, Dracaena sanderiana ‘white’ and Dracaena deremensis. Key words: postharvest life; Dracaena marginata ‘bi colour’; Dracaena sanderiana ‘white’; Dracaena deremensis; marketability DOI: http://dx. ...
Tópico(s): Plant Pathogens and Fungal Diseases
2012 - University of Peradeniya | Ceylon Journal of Science (Biological Sciences)