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Dendrobium

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https://www.readbyqxmd.com/read/28304124/distinguishing-the-chinese-materia-medica-tiepishihu-from-similar-dendrobium-species-of-the-same-genus-using-histological-and-microscopic-method
#1
Kun-Zi Yu, Hua Yan, Hai-Chuan Tai, Nan-Ping Zhang, Xian-Long Cheng, Zeng-Xi Guo, Shuang-Cheng Ma, Feng Wei
The Chinese Materia Medica, Tiepishihu, used as a tonic for over one thousand years, is a well-known precious medicine in China. According to the Chinese Pharmacopoeia, its source is the species Dendrobium officinale Kimura et Migo, which is distinguished from other species in Dendrobium genus. However, these species from the same genus are similar with Tiepishihu and caused confusion in the market. To find a quick and simple method to distinguish Tiepishihu from other similar species, histologic and microscopic methods were combined together to investigate the transverse section of stem of Tiepishihu and other similar species...
March 17, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28299575/phylogenetic-constrains-on-mycorrhizal-specificity-in-eight-dendrobium-orchidaceae-species
#2
Xiaoke Xing, Xueting Ma, Jinxin Men, Yanhong Chen, Shunxing Guo
Plant phylogeny constrains orchid mycorrhizal (OrM) fungal community composition in some orchids. Here, we investigated the structures of the OrM fungal communities of eight Dendrobium species in one niche to determine whether similarities in the OrM fungal communities correlated with the phylogeny of the host plants and whether the Dendrobium-OrM fungal interactions are phylogenetically conserved. A phylogeny based on DNA data was constructed for the eight coexisting Dendrobium species, and the OrM fungal communities were characterized by their roots...
March 13, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28298629/identification-and-analysis-of-genes-associated-with-the-synthesis-of-bioactive-constituents-in-dendrobium-officinale-using-rna-seq
#3
Chenjia Shen, Hong Guo, Hailing Chen, Yujun Shi, Yijun Meng, Jiangjie Lu, Shangguo Feng, Huizhong Wang
Dendrobium officinale L. is an important traditional herb with high commercial value in China. Several bioactive constituents, including polysaccharides and alkaloids, reportedly make major contributions toward the excellent medicinal effect of D. officinale. In this study, the contents of polysaccharides and alkaloids in various organs of D. officinale were measured and compared. We took advantage of transcriptomes from four organs to explore biological mechanisms in the organ-specific distribution of active ingredients in D...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28281361/simultaneous-determination-and-anti-inflammatory-effects-of-four-phenolic-compounds-in-dendrobii-herba
#4
Sae-Rom Yoo, Soo-Jin Jeong, Na-Ri Lee, Hyeun-Kyoo Shin, Chang-Seob Seo
Dendrobii Herba, a traditional Korean medicine, is used for treating atrophic gastritis, diabetes and cardiovascular diseases. Phytochemical studies of Dendrobium species and their compounds have been conducted. However, the pharmaceutical effects of these compounds have not yet been elucidated. We performed quantitative determination of four phenolic compounds, - (1) 4-hydroxybenzoic acid, (2) vanillic acid (3) syringic acid and (4) ferulic acid - in Dendrobii Herba using high-performance liquid chromatography coupled with a photodiode array detector...
March 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28262789/iteration-expansion-and-regional-evolution-phylogeography-of-dendrobium-officinale-and-four-related-taxa-in-southern-china
#5
Beiwei Hou, Jing Luo, Yusi Zhang, Zhitao Niu, Qingyun Xue, Xiaoyu Ding
The genus Dendrobium was used as a case study to elucidate the evolutionary history of Orchidaceae in the Sino-Japanese Floristic Region (SJFR) and Southeast Asia region. These evolutionary histories remain largely unknown, including the temporal and spatial distribution of the evolutionary events. The present study used nuclear and plastid DNA to determine the phylogeography of Dendrobium officinale and four closely related taxa. Plastid DNA haplotype and nuclear data were shown to be discordant, suggesting reticulate evolution drove the species' diversification...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261990/dendrobium-nobile-lindl-alkaloid-a-novel-autophagy-inducer-protects-against-axonal-degeneration-induced-by-a%C3%AE-25-35-in-hippocampus-neurons-in-vitro
#6
Li-Sheng Li, Yan-Liu Lu, Jing Nie, Yun-Yan Xu, Wei Zhang, Wen-Jin Yang, Qi-Hai Gong, Yuan-Fu Lu, Yang Lu, Jing-Shan Shi
AIMS: Axonal degeneration is a pathological symbol in the early stage of Alzheimer's disease (AD), which can be triggered by amyloid-β (Aβ) peptide deposition. Growing evidence indicates that deficit of autophagy eventually leads to the axonal degeneration. Our previous studies have shown that Dendrobium nobile Lindl alkaloid (DNLA) had protective effect on neuron impairment in vivo and in vitro; however, the underlying mechanisms is still unclear. METHODS: We exposed cultured hippocampus neurons to Aβ25-35 to investigate the effect of DNLA in vitro...
March 5, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28261235/cytochemical-localization-of-polysaccharides-in-dendrobium-officinale-and-the-involvement-of-docsla6-in-the-synthesis-of-mannan-polysaccharides
#7
Chunmei He, Kunlin Wu, Jianxia Zhang, Xuncheng Liu, Songjun Zeng, Zhenming Yu, Xinghua Zhang, Jaime A Teixeira da Silva, Rufang Deng, Jianwen Tan, Jianping Luo, Jun Duan
Dendrobium officinale is a precious traditional Chinese medicinal plant because of its abundant polysaccharides found in stems. We determined the composition of water-soluble polysaccharides and starch content in D. officinale stems. The extracted water-soluble polysaccharide content was as high as 35% (w/w). Analysis of the composition of monosaccharides showed that the water-soluble polysaccharides were dominated by mannose, to a lesser extent glucose, and a small amount of galactose, in a molar ratio of 223:48:1...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28258650/concomitant-loss-of-ndh-complex-related-genes-within-chloroplast-and-nuclear-genomes-in-some-orchids
#8
Choun-Sea Lin, Jeremy J W Chen, Chi-Chou Chiu, Han C W Hsiao, Chen-Jui Yang, Xiao-Hua Jin, James Leebens-Mack, Claude W dePamphilis, Yao-Ting Huang, Ling-Hung Yang, Wan-Jung Chang, Ling Kui, Gane Ka-Shu Wong, Jer-Ming Hu, Wen Wang, Ming-Che Shih
Chloroplast NAD(P)H dehydrogenase-like (NDH) complex consists of ~30 subunits from both the nuclear and chloroplast genomes and is ubiquitous across most land plants. In some orchids, such as Phalaenopsis equestris, Dendrobium officinale and D. catenatum, most of the 11 chloroplast genome encoded ndh genes (cp-ndh) have been lost. Here we investigated whether functional cp-ndh genes have been completely lost in these orchids or whether they have been transferred and retained in the nuclear genomes. Further, we assessed whether both cp-ndh genes and nucleus-encoded NDH-related genes can be lost resulting in the absence of the NDH complex...
March 4, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28250593/assessment-of-genetic-diversity-among-four-orchids-based-on-ddrad-sequencing-data-for-conservation-purposes
#9
Subhas Chandra Roy, Kaushik Moitra, Dilip De Sarker
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...
January 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28249822/ethnobotanical-survey-of-herbal-tea-plants-from-the-traditional-markets-in-chaoshan-china
#10
Dong-Lin Li, Xi-Long Zheng, Lei Duan, Shuang-Wen Deng, Wen Ye, Ai-Hua Wang, Fu-Wu Xing
ETHNOPHARMACOLOGICAL RELEVANCE: Herbal tea, which refers to "cooling tea", "cool beverage", or "liáng chá" in China, includes a range of drinks with heat-clearing and detoxification qualities. Herbal tea plants are great contributive to the health and prosperity of Chaoshan people. The aim of the study was to document herbal tea plant species used and commercialized as "liáng chá" in Chaoshan area, to facilitate the use and development of herbal tea enterprises, and to promote the further development of national herbal tea...
February 26, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28245766/current-advances-in-the-biological-activity-of-polysaccharides-in-dendrobium-with-intriguing-therapeutic-potential
#11
Chun-Ting Lee, Heng-Chun Kuo, Yung-Hsiang Chen, Ming-Yen Tsai
The polysaccharides in many plants are attracting worldwide attention because of their biological activities and medical properties, such as anti-viral, anti-oxidative, anti-chronic inflammation, anti-hypertensive, immunomodulation, and neuron-protective effects, as well as anti-tumor activity. Denodrobium species, a genus of the family orchidaceae, have been used as herbal medicines for hundreds of years in China due to their pharmacological effects. These effects include nourishing the Yin, supplementing the stomach, increasing body fluids, and clearing heat...
February 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28245078/identification-of-huoshan-shihu-fengdou-comparative-authentication-of-the-daodi-herb-dendrobium-huoshanense-and-its-related-species-by-macroscopic-and-microscopic-features
#12
Yujiao Zhao, Bangxing Han, Huasheng Peng, Xiao Wang, Shanshan Chu, Jun Dai, Daiyin Peng
"Huoshan shihu," derived from Dendrobium huoshanense, is a well-known, valuable, and rare Daodi herb. Because of its higher price and scarce resources, its related species D. officinale and D. moniliforme are usually presented as "Huoshan shihu" for sale. Fengdou, the processed form of D. huoshanense, its identification is particularly important. To effectively identify Fengdou of D. huoshanense and protect the Daodi herb, the morphological and microscopic characteristics of the stems of three Dendrobium species were examined...
February 28, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28216896/therapeutic-effect-of-dendrobium-candidum-on-lupus-nephritis-in-mice
#13
Qiang Wang, Peng Sun, Rui Wang, Xin Zhao
CONTEXT: Dendrobium candidum (D. candimum) widely is a functional drug. The curative effect of D. candidum on lupus nephritis has been studied in vivo. MATERIALS AND METHOD: The DBA/2 and B6D2F1 mice were used for this in vivo experiment. The 50% effective dose (ED50) was used to check the effective concentration for this study. Then the SCr, BUN, TC, TG, IL-6, IL-12, TNF-α, and IFN-γ levels were determined by kits. The output of urine protein was determined by means of Coomassie Brilliant Blue, and the auto-antibody dsDNA was determined with titer plate technology and indirect immunofluorescence...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28197691/the-medicinal-and-pharmaceutical-importance-of-dendrobium-species
#14
REVIEW
Jaime A Teixeira da Silva, Tzi Bun Ng
Plants of the Dendrobium genus, one of the largest in the Orchidaceae, manifest a diversity of medicinal effects encompassing antiangiogenic, immunomodulating, antidiabetic, cataractogenesis-inhibiting, neuroprotective, hepatoprotective, anti-inflammatory, antiplatelet aggregation, antifungal, antibacterial, antiherpetic, antimalarial, aquaporin-5 stimulating, and hemagglutininating activities and also exert beneficial actions on colonic health and alleviate symptoms of hyperthyroidism. The active principles include a wide range of proteinaceous and non-proteinaceous molecules...
March 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28195549/dendrobium-chrysanthum-ethanolic-extract-induces-apoptosis-via-p53-up-regulation-in-hela-cells-and-inhibits-tumor-progression-in-mice
#15
Ritika Prasad, Nishant Kumar Rana, Biplob Koch
Background Dendrobium is one of the diverse genus of orchid plants. It possesses a number of pharmacological activities and has long been used in traditional system of medicine. The goal of this study was to investigate the apoptosis inducing property of the ethanolic extract from the leaves of Dendrobium chrysanthum, a species of Dendrobium whose anticancer role has not been ascertained yet. Methods To evaluate the anticancer activity of the ethanolic extract of D. chrysanthum in vitro in HeLa (human cervical cancer) cells, cytotoxic activity, generation of reactive oxygen species (ROS), induction of apoptosis and effect on cell cycle were determined...
February 14, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28182623/evaluation-of-dna-barcodes-in-codonopsis-campanulaceae-and-in-some-large-angiosperm-plant-genera
#16
De-Yi Wang, Qiang Wang, Ying-Li Wang, Xiao-Guo Xiang, Lu-Qi Huang, Xiao-Hua Jin
DNA barcoding is expected to be one of the most promising tools in biological taxonomy. However, there have been no agreements on which core barcode should be used in plants, especially in species-rich genera with wide geographical distributions. To evaluate their discriminatory power in large genera, four of the most widely used DNA barcodes, including three plastid regions (matK, rbcL, trnH-psbA) and nuclear internal transcribed spacer (nrITS), were tested in seven species-rich genera (Ficus, Pedicularis, Rhodiola, Rhododendron,Viburnum, Dendrobium and Lysimachia) and a moderate size genus, Codonopsis...
2017: PloS One
https://www.readbyqxmd.com/read/28176760/dogmp1-from-dendrobium-officinale-contributes-to-mannose-content-of-water-soluble-polysaccharides-and-plays-a-role-in-salt-stress-response
#17
Chunmei He, Zhenming Yu, Jaime A Teixeira da Silva, Jianxia Zhang, Xuncheng Liu, Xiaojuan Wang, Xinhua Zhang, Songjun Zeng, Kunlin Wu, Jianwen Tan, Guohua Ma, Jianping Luo, Jun Duan
GDP-mannose pyrophosphorylase (GMP) catalyzed the formation of GDP-mannose, which serves as a donor for the biosynthesis of mannose-containing polysaccharides. In this study, three GMP genes from Dendrobium officinale (i.e., DoGMPs) were cloned and analyzed. The putative 1000 bp upstream regulatory region of these DoGMPs was isolated and cis-elements were identified, which indicates their possible role in responses to abiotic stresses. The DoGMP1 protein was shown to be localized in the cytoplasm. To further study the function of the DoGMP1 gene, 35S:DoGMP1 transgenic A...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28146409/granularity-and-laxative-effect-of-ultrafine-powder-of-dendrobium-officinale
#18
DanDan Luo, Chao Qu, ZhenBiao Zhang, JianHui Xie, LieQiang Xu, HongMei Yang, CaiLan Li, GuoSheng Lin, HongFeng Wang, ZiRen Su
Constipation is a common disorder that is a significant source of morbidity among people around the world ranging from 2% to 28%. Dendrobium officinale Kimura et Migo is a traditional herbal medicine and health food used for tonicity of the stomach and promotion of body fluid production in China. This study aimed to prepare the ultrafine powder of Dendrobium officinale (UDO) and investigate its laxative effect and potential mechanism in mice with diphenoxylate-induced constipation. Results indicated that the mean diameter (d50) of UDO obtained by ball milling was 6...
February 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28138710/moscatilin-induces-apoptosis-of-pancreatic-cancer-cells-via-reactive-oxygen-species-and-the-jnk-sapk-pathway
#19
Lei Zhang, Yuan Fang, Xue-Feng Xu, Da-Yong Jin
Moscatilin is a bibenzyl derivative extracted from the Dendrobium aurantiacum var. denneanum, which has traditionally been used as an immunomodulatory treatment in China. The present study was designed to determine whether moscatilin is a pro‑apoptotic agent in pancreatic cancer, and to elucidate the underlying mechanisms. The apoptotic and anti‑proliferative effects of moscatilin on pancreatic cancer cells were determined in vitro using biochemical assays, such as the MTT assay, colony formation assay, Hoechst staining and DNA fragmentation assay, and in vivo using Panc‑1 pancreatic cancer xenografts...
January 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28131062/anthocyanin-biosynthesis-regulation-of-dhmyb2-and-dhbhlh1-in-dendrobium-hybrids-petals
#20
Chonghui Li, Jian Qiu, Ling Ding, Mingzhong Huang, Surong Huang, Guangsui Yang, Junmei Yin
Dendrobium hybrids orchid are popular throughout the world. They have various floral color and pigmentation patterns that are mainly caused by anthocyanins. It is well established that anthocyanin biosynthesis is regulated by the interplay between MYB and bHLH transcription factors (TF) in most plants. In this study, we identified one R2R3-MYB gene, DhMYB2, and one bHLH gene, DhbHLH1, from a Dendrobium hybrid. Their expression profiles were related to anthocyanin pigmentation in Dendrobium petals. Transient over-expression of these two TF genes showed that both DhMYB2 and DhbHLH1 resulted in anthocyanin production in white petals...
March 2017: Plant Physiology and Biochemistry: PPB
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