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Wangyu Liu, Yuanqiang Luo, Li Wang, Tao Luo, Yi Peng, Lei Wu
As an exploration to the nature, research about plants' physiological properties have never been suspended. Water transport in leaf vein systems is an essential part of plant growth and development. In this paper, a simple but efficient method combined the fluorescence labeling technology frequently used in bioresearch and the image-processing technology in the computer realm was developed to measure the flow velocity, which was used as a quantitative description to reveal the regulation of water transport in leaf vein systems...
October 1, 2016: Journal of Plant Physiology
Eric Wei Chiang Chan, Siu Kuin Wong, Hung Tuck Chan
Apocynaceae is a large family of tropical trees, shrubs and vines with most species producing white latex. Major metabolites of species are triterpenoids, iridoids, alkaloids and cardenolides, which are known for a wide range of biological and pharmacological activities such as cardioprotective, hepatoprotective, neuroprotective, anti-inflammatory, anticancer and antimalarial properties. Prompted by their anticancer and antimalarial properties, the current knowledge on ten genera (Allamanda, Alstonia, Calotropis, Catharanthus, Cerbera, Dyera, Kopsia, Nerium, Plumeria and Vallaris) is updated...
July 2016: Journal of Integrative Medicine
Kaomud Tyagi, Vikas Kumar
Two new species of Neohydatothrips are described from India, N. chandrai and N. plumeria. The former was collected on leaves of a hedge plant in northwest India, and the latter on flowers and leaves of Plumeria sp. in eastern India. A key to the seven species of Neohydatothrips recorded from India is also provided. Partial sequence data of mitochondrial cytochrome <span style="text-decoration: underline;">c oxidase (mtCOI) from the holotypes of each of these two new species were generated.
June 30, 2016: Zootaxa
Tao-yang Huang, Yan-jun Weng, He Huang, Qiu-ling Xie, Cong-hui Yan, Wei Zhao
OBJECTIVE: To compare the volatile constituents of Plumeriae Flos from different origins. METHODS: Water distillation method according to the Chinese Pharmacopeia was used to extract the volatile constituents of fresh Plumeriae Flos samples (red flower and white flower) and dried samples. GC-MS method combined with NIST MS Search 2.0 data base was carried out to identify the volatile constituents and to calculate the relative percentage content. RESULTS: 55 peaks were detected in the GC-MS spectrum...
November 2015: Zhong Yao Cai, Zhongyaocai, Journal of Chinese Medicinal Materials
Nittya K Dogra
Plumeria (Apocynaceae) is a genus comprising mostly of lactiferous trees and deciduous shrubs. Plumeria obtusa L. is a widely available but pharmacologically lesser explored species of this genus. Thus, present research was undertaken to determine the phytochemical constituents and the antioxidant potential of the methanol extract and fractions of the plant. The antioxidant potential was determined using 1,1-diphenyl-2-picrylhydrazyl radical scavenging and inhibition of lipid peroxidation assay.
January 2016: Indian Journal of Pharmaceutical Sciences
Alok Kumar, Vikas Solanki, H N Verma, Bikash Mandal
Frangipani mosaic virus (FrMV) is known to infect frangipani tree (Plumeria rubra f. acutifolia) in India but the virus has not been characterized at genomic level and diagnosis is not available. In the present study, an isolate of FrMV (FrMV-Ind-1) showing greenish mosaic and vein-banding symptoms in P. rubra f. acutifolia in New Delhi was characterized based on host reactions, serology and genome sequence. The virus isolate induced local symptoms on several new experimental host species: Capsicum annuum (chilli), Nicotiana benthamiana, Solanum lycopersicum and S...
October 2015: Virus Genes
Cleverson D T Freitas, Maria Z R Silva, Frederico Bruno-Moreno, Ana C O Monteiro-Moreira, Renato A Moreira, Márcio V Ramos
Proteins that share similar primary sequences to the protein originally described in salt-stressed tobacco cells have been named osmotins. So far, only two osmotin-like proteins were purified and characterized of latex fluids. Osmotin from Carica papaya latex is an inducible protein lacking antifungal activity, whereas the Calotropis procera latex osmotin is a constitutive antifungal protein. To get additional insights into this subject, we investigated osmotins in latex fluids of five species. Two potential osmotin-like proteins in Cryptostegia grandiflora and Plumeria rubra latex were detected by immunological cross-reactivity with polyclonal antibodies produced against the C...
November 2015: Plant Physiology and Biochemistry: PPB
Rani Mata, Jayachandra Reddy Nakkala, Sudha Rani Sadras
Herein, we report the green synthesis of silver nanoparticles using Plumeria alba (frangipani) flower extract (FFE) and their biological applications. The formation of frangipani silver nanoparticles (FSNPs) was confirmed by UV-visible spectroscopy and characterized by DLS particle size analyzer, SEM/EDAX, FTIR, TGA/DSC and XRD. The synthesized spherical FSNPs were found to be 36.19nm in size as determined by DLS particle size analyzer. EDAX data and XRD pattern of FSNPs confirmed the presence and face-centered cubic (fcc) phase structure of silver...
June 2015: Materials Science & Engineering. C, Materials for Biological Applications
N Ali, M Junaid, D Ahmad, M urRahman, N Ali, G Katzenmeier
Extracts of Plumeria obtusa are widely used in ethnomedicine and have been investigated for a variety of biological activities; however, the antimicrobial activity of P. obtusa flowers is poorly characterized. In this study, the antimicrobial activities of different solvents (petroleum ether, ethyl acetate, chloroform, isobutanol and ethanol) extracts from flowers of P. obtusa were investigated by a disc diffusion method against Gram-positive bacteria, Gram-negative bacteria and a fungus. All extracts exhibited growth inhibition of all microorganisms at variable degrees as measured by relative zones of inhibition, however, the petroleum ether extract was ineffective against Klebsiella pneumonia and ethyl acetate and isobutanol extracts were ineffective against Pseudomonas aeruginosa...
December 2014: Tropical Biomedicine
Helen L Alvarado, Guadalupe Abrego, María L Garduño-Ramirez, Beatriz Clares, María L García, Ana C Calpena
Oleanolic acid (OA) and ursolic acid (UA) are ubiquitous pentacyclic triterpenes compounds in plants. These triterpenoids exhibit unique, important biological and pharmacological activities. For the investigation and development of topical drug delivery systems of triterpenoids in Plumeria obtusa is essential an adequate detection and quantification method for its application in skin permeation studies. The aim of this study was to develop a HPLC method for the determination of OA/UA from leaves of P. obtusa...
March 1, 2015: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Nasir Ali, Dawood Ahmad, Jehan Bakht
The present research work was carried out to investigate the antimicrobial (eight bacteria and one fungus) activities of different solvent (ethanol, petroleum ether, chloroform, ethyl acetate and isobutanol) extracted samples from flowers of P. obstusa by disc diffusion method. Analysis of the data revealed that all the five extracts from flowers of P. obstusa showed different ranges of antimicrobial activities. Petroleum ether fractions showed inhibitory activities against all the nine microbial species except Klebsiella pneumonia...
January 2015: Pakistan Journal of Pharmaceutical Sciences
Oladipupo A Lawal, Isiaka A Ogunwande, Andy R Opoku
This paper reports on the compounds identified in the leaf and flower essential oils obtained by hydrodistillation of Plumeria alba L. (Apocynaceae) grown in Nigeria. The chemical analysis of the essential oils was achieved by means of gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). Linalool (13.2%), n-nonanal (9.6%), phenyl acetaldehyde (8.5%), neryl acetone (5.3%) and n-decanal (5.1%) were the main constituents of the leaf oil. On the other hand, the flower oil comprised mainly of limonene (9...
November 2014: Natural Product Communications
Márcio V Ramos, Danielle A Pereira, Diego P Souza, Maria-Lídia S Silva, Luciana M R Alencar, Jeanlex S Sousa, Juliany-Fátima N Queiroz, Cleverson D T Freitas
Studies investigating the resistance-susceptibility of crop insects to proteins found in latex fluids have been reported. However, latex-bearing plants also host insects. In this study, the gut proteolytic system of Pseudosphinx tetrio, which feeds on Plumeria rubra leaves, was characterized and further challenged against the latex proteolytic system of its own host plant and those of other latex-bearing plants. The gut proteolytic system of Danaus plexippus (monarch) and the latex proteolytic system of its host plant (Calotropis procera) were also studied...
January 2015: Planta
Yu-Hua Shi, Wei Sun, Guang-Hong Fang, Rong-Bo Zheng, Wen-Liu Xu, Xiao-Dan Huang, Shao-Quan Weng, Chu-Yuan Li, Shi-Lin Chen
ITS2 sequence was used as a barcode to identify herbal tea ingredient Plumeria rubra and its adulterants. Genomic DNAs from forty eight samples were extracted, the ITS2 sequences were amplified and sequenced bi-direstionlly, and then assembled and obtained using CodonCode Aligner. The sequences were aligned using ClustalW, the genetic distances were computed by kimura 2-parameter (K2P) model and the Neighbor-joining (NJ) phylogenetic trees were constructed using MEGA5.0. Results showed that the length of ITS2 sequence of P...
June 2014: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
Manjusha Choudhary, Vipin Kumar, Pankaj Gupta, Surender Singh
AIM: The present investigation was designed to evaluate antiarthritic potential of fractions of hydroalcoholic extract from leaves of P. alba. MATERIALS AND METHODS: Plumeria alba L. leaves were extracted with hydroalcohol (30 : 70) to obtain hydroalcoholic extract of P. alba. This extract was further fractionated with solvents ethyl acetate and n-butanol to obtain EAPA and BPA, respectively. These fractions were tested against formaldehyde and Freund's complete adjuvant (FCA) induced arthritis...
2014: BioMed Research International
K Z Tessou, P Lawson-Evi, K Metowogo, A Diallo, K Eklu-Gadegkeku, K Aklikokou, M Gbeassor
Plumeria alba Linn (Apocynaceae) is used in Togolese traditional medicine to treat diabetes mellitus and wounds. The present investigation was carried out to evaluate the toxicity of hydroalcoholic extract of Plumeria alba roots in Sprague Dawley rats. The acute toxicity test was conducted by administering orally dose of 5 g/Kg. General behavior and mortality were examined for up to 14 days. The sub-acute toxicity test was performed by daily gavage at 250, 500 and 1000 mg/Kg for 28 days. Body weight and blood glucose were measured weekly...
December 2013: International Journal of Biomedical Science: IJBS
Siu Kuin Wong, Yau Yan Lim, Sui Kiong Ling, Eric Wei Chiang Chan
BACKGROUND: Three compounds isolated from the methanol (MeOH) leaf extract of Vallaris glabra (Apocynaceae) were those of caffeoylquinic acids (CQAs). This prompted a quantitative analysis of their contents in leaves of V. glabra in comparison with those of five other Apocynaceae species (Alstonia angustiloba, Dyera costulata, Kopsia fruticosa, Nerium oleander, and Plumeria obtusa), including flowers of Lonicera japonica (Japanese honeysuckle), the commercial source of chlorogenic acid (CGA)...
January 2014: Pharmacognosy Research
Manjusha Choudhary, Vipin Kumar, Surender Singh
OBJECTIVE: This study was conducted to evaluate the antiulcerogenic property of hydroalcoholic extract obtained from the leaves of Plumeria alba Linn. METHODS: Antiulcer assays were performed using the protocols of ulcer induced by non-steroidal anti-inflammatory drugs, ethanol and pylorus ligation. The hydroalcoholic extract (HAPA), and various fractions of HAPA like, n-hexane extract (HPA), ethyl acetate extract (EAPA) and n-butanol extract (BPA) were administered at doses of 200 and 400 mg/kg for HAPA and 100 and 200 mg/kg for fractions of extracts...
January 2014: Journal of Integrative Medicine
Vijay Alakshmi, Ravi Chandiran, Malarkodi Velraj, Hemalatha, Jayakumari
In the present study, anti-anaphylactic, anti-inflammatory and membrane stabilizing properties of a lupine alkaloid plumerianine (compound 1), isolated from the root bark of Plumeria acutifolia Poir were investigated in animal models. The anti-anaphylactic activity of compound 1 (10, 25 and 50 mg/Kg) was studied by using models such as passive cutaneous anaphylaxis, passive paw anaphylaxis and also investigated for its anti-inflammatory activity against the carrageenin induced paw edema and cotton pellet granuloma in albino rats...
2011: Iranian Journal of Pharmaceutical Research: IJPR
Savina Asiimwe, Maud Kamatenesi-Mugisha, Agnes Namutebi, Anna-Karin Borg-Karlsson, Peace Musiimenta
ETHNOPHARMACOLOGICAL RELEVANCE: Herbal remedies are a source of therapeutics for nearly 80% of the population in Uganda. Poor health facilities and limited access to antiretroviral drugs have perpetuated and increased the use of traditional medicine especially in rural areas for the treatment of opportunistic ailments of HIV/AIDS. To document the traditional uses of nutri-medicinal plants in the management of immunocompromised ailments associated with HIV/AIDS. To document the parts and growth forms of plants used, methods of preparation and administration of the herbal remedies...
November 25, 2013: Journal of Ethnopharmacology
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