1
|
Dayrit JF, Guevara BEK, Bintanjoyo L, Norton SA. Dermatitis and prolonged dysesthesia from the poisonous wood nettle, Dendrocnide meyeniana ( Urticaceae). Australas J Dermatol 2024. [PMID: 38616498 DOI: 10.1111/ajd.14252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/06/2024] [Accepted: 03/11/2024] [Indexed: 04/16/2024]
Affiliation(s)
- Johannes F Dayrit
- De La Salle Medical and Health Sciences Institute, Dasmarinas City, Cavite, Philippines
- Department of Dermatology, Research Institute for Tropical Medicine, Muntinlupa City, Philippines
| | - Bryan Edgar K Guevara
- Department of Dermatology, Southern Philippines Medical Center, Davao City, Philippines
| | - Lunardi Bintanjoyo
- Department of Dermatology, Research Institute for Tropical Medicine, Muntinlupa City, Philippines
| | - Scott A Norton
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
| |
Collapse
|
2
|
Krajewska A, Mietlińska K. Determining the Parameters of the Stinging Nettle ( Urtica dioica L.) Hydrolate Distillation Process. Molecules 2022; 27:molecules27123912. [PMID: 35745034 PMCID: PMC9230648 DOI: 10.3390/molecules27123912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/25/2022]
Abstract
Stinging nettle (Urtica dioica L.) is a common perennial herb well known for its therapeutic, cosmetic and food use. Despite the popularity of nettle hydrolate, there is currently no literature describing its composition; likewise, there is still a lack of research describing in detail the parameters of hydrolates in general. U. dioica hydrolate fractions were obtained by industrial steam distillation of fresh herb. Total stinging nettle hydrolate was prepared by mixing an equal volume of each fraction. The volatiles were isolated from hydrolate samples by liquid–liquid extraction with diethyl ether, and analysed using GC-FID-MS. Over eighty volatile compounds were identified in U. dioica hydrolate. The main group of constituents were oxygenated compounds, mainly alcohols (e.g., (E)- and (Z)-hex-3-en-1-ol, carvacrol) and oxides (e.g., caryophyllene oxide). The content of volatiles in the representative sample of total hydrolate amounted to 58.2 mg/L. Some qualitative and quantitative changes in the composition of U. dioica hydrolate were observed during the progress of distillation. The content of low chain aliphatic alcohols ((E)- and (Z)-hex-3-en-1-ol) decreased, whereas the percentage of some monoterpene alcohols (carvacrol and α-terpineol) increased. The total content of volatiles in hydrolate also changed and decreased (128.0–6.2 mg/L) during distillation progress. According to our results, to produce stinging nettle hydrolate of good quality, the proper relationship between the amount of hydrolate and raw plant material should result in obtaining 0.74 L hydrolate from 1 kg of fresh stinging nettle herb. Therefore, it may be assumed that the high alcohol content may increase the microbiological stability of the product.
Collapse
|
3
|
Wu ZY, Milne RI, Liu J, Slik F, Yu Y, Luo YH, Monro AK, Wang WT, Wang H, Kessler PJA, Cadotte MW, Nathan R, Li DZ. Phylogenomics and evolutionary history of Oreocnide ( Urticaceae) shed light on recent geological and climatic events in SE Asia. Mol Phylogenet Evol 2022; 175:107555. [PMID: 35724818 DOI: 10.1016/j.ympev.2022.107555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 05/11/2022] [Accepted: 05/18/2022] [Indexed: 11/26/2022]
Abstract
Climate change and geological events have long been known to shape biodiversity, implying that these can likewise be viewed from a biological perspective. To study whether plants can shed light on this, and how they responded to climate change there, we examined Oreocnide, a genus widely distributed in SE Asia. Based on broad geographic sampling with genomic data, we employed an integrative approach of phylogenomics, molecular dating, historical biogeography, and ecological analyses. We found that Oreocnide originated in mainland East Asia and began to diversify ∼6.06 Ma, probably in response to a distinct geographic and climatic transition in East Asia at around that time, implying that the last important geological change in mainland SE Asia might be 1 Ma older than previously suggested. Around four immigration events to the islands of Malesia followed, indicating that immigration from the mainland could be an underestimated factor in the assembly of biotic communities in the region. Two detected increases of diversification rate occurred 3.13 and 1.19 Ma, which strongly implicated climatic rather than geological changes as likely drivers of diversification, with candidates being the Pliocene intensification of the East Asian monsoons, and Pleistocene climate and sea level fluctuations. Distribution modelling indicated that Pleistocene sea level and climate fluctuations were inferred to enable inter-island dispersal followed by allopatric separation, underpinning radiation in the genus. Overall, our study, based on multiple lines of evidence, linked plant diversification to the most recent climatic and geological events in SE Asia. We highlight the importance of immigration in the assembly and diversification of the SE Asian flora, and underscore the utility of plant clades, as independent lines of evidence, for reconstructing recent climatic and geological events in the SE Asian region.
Collapse
Affiliation(s)
- Zeng-Yuan Wu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Richard I Milne
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JH, UK
| | - Jie Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Ferry Slik
- Environmental and Life Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Yan Yu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610207, China
| | - Ya-Huang Luo
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Alexandre K Monro
- Identification & Naming Department, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE, UK
| | - Wan-Ting Wang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Hong Wang
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Paul J A Kessler
- Uiversity of Leiden Hortus botanicus Leiden, PO Box 9500, 2300 RA Leiden, The Netherlands
| | - Marc W Cadotte
- Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON, M5S 3B2, Canada
| | - Ran Nathan
- Movement Ecology Laboratory, Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - De-Zhu Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China.
| |
Collapse
|
4
|
Ogoma CA, Liu J, Stull GW, Wambulwa MC, Oyebanji O, Milne RI, Monro AK, Zhao Y, Li DZ, Wu ZY. Deep Insights Into the Plastome Evolution and Phylogenetic Relationships of the Tribe Urticeae (Family Urticaceae). Front Plant Sci 2022; 13:870949. [PMID: 35668809 PMCID: PMC9164014 DOI: 10.3389/fpls.2022.870949] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/15/2022] [Indexed: 05/09/2023]
Abstract
Urticeae s.l., a tribe of Urticaceae well-known for their stinging trichomes, consists of more than 10 genera and approximately 220 species. Relationships within this tribe remain poorly known due to the limited molecular and taxonomic sampling in previous studies, and chloroplast genome (CP genome/plastome) evolution is still largely unaddressed. To address these concerns, we used genome skimming data-CP genome and nuclear ribosomal DNA (18S-ITS1-5.8S-ITS2-26S); 106 accessions-for the very first time to attempt resolving the recalcitrant relationships and to explore chloroplast structural evolution across the group. Furthermore, we assembled a taxon rich two-locus dataset of trnL-F spacer and ITS sequences across 291 accessions to complement our genome skimming dataset. We found that Urticeae plastomes exhibit the tetrad structure typical of angiosperms, with sizes ranging from 145 to 161 kb and encoding a set of 110-112 unique genes. The studied plastomes have also undergone several structural variations, including inverted repeat (IR) expansions and contractions, inversion of the trnN-GUU gene, losses of the rps19 gene, and the rpl2 intron, and the proliferation of multiple repeat types; 11 hypervariable regions were also identified. Our phylogenomic analyses largely resolved major relationships across tribe Urticeae, supporting the monophyly of the tribe and most of its genera except for Laportea, Urera, and Urtica, which were recovered as polyphyletic with strong support. Our analyses also resolved with strong support several previously contentious branches: (1) Girardinia as a sister to the Dendrocnide-Discocnide-Laportea-Nanocnide-Zhengyia-Urtica-Hesperocnide clade and (2) Poikilospermum as sister to the recently transcribed Urera sensu stricto. Analyses of the taxon-rich, two-locus dataset showed lower support but was largely congruent with results from the CP genome and nuclear ribosomal DNA dataset. Collectively, our study highlights the power of genome skimming data to ameliorate phylogenetic resolution and provides new insights into phylogenetic relationships and chloroplast structural evolution in Urticeae.
Collapse
Affiliation(s)
- Catherine A. Ogoma
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Liu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Gregory W. Stull
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Moses C. Wambulwa
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Department of Life Sciences, School of Science and Computing, South Eastern Kenya University, Kitui, Kenya
| | - Oyetola Oyebanji
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Richard I. Milne
- School of Biological Sciences, Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Ying Zhao
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - De-Zhu Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- *Correspondence: De-Zhu Li,
| | - Zeng-Yuan Wu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Zeng-Yuan Wu,
| |
Collapse
|
5
|
DeVore ML, Nyandwi A, Eckardt W, Bizuru E, Mujawamariya M, Pigg KB. Urticaceae leaves with stinging trichomes were already present in latest early Eocene Okanogan Highlands, British Columbia, Canada. Am J Bot 2020; 107:1449-1456. [PMID: 33091153 DOI: 10.1002/ajb2.1548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
PREMISE Paleontologists use tooth form to assess diets of fossil mammals. Plants would also be expected to adapt their morphology to respond to herbivory. Fossil nettle leaves with definitive stinging trichomes (tribe Urticeae, family Urticaceae) are described from the early Eocene upland lacustrine floras of the Okanogan Highlands, British Columbia, Canada. This is the first report of stinging trichomes in the fossil record. Their occurrence in western North America at a time of major large herbivorous mammal radiation suggests they acted, as they do today, as a deterrent for mammal herbivory. METHODS Fossil leaf compressions and extant leaves were photographed with standard methods. Focus-shift stacking was used to layer photos of the fossil leaves. RESULTS Urticaceous fossil leaves from the Okanogan Highlands greatly resemble their modern relatives in leaf morphology and particularly in both stinging and nonstinging trichomes. Nettles are common components of the flora of the Volcanoes National Park in Rwanda. This region is used as a modern analogue for the Okanogan Highlands, based on comparable elevation, equable conditions that host both similar floras and large folivores. CONCLUSIONS Nettles in tribe Urticeae (Urticaceae) producing leaves with stinging and nonstinging trichomes were already present in the early Eocene of western North America at a pivotal time during the early radiation of modern mammalian herbivore groups. They offer tantalizing evidence of a selective response that plants may have developed to protect themselves from the evolving mammalian herbivores of that time.
Collapse
Affiliation(s)
- Melanie L DeVore
- Department of Biological & Environmental Sciences, Georgia College and State University, Milledgeville, Georgia, 31062-0001, USA
| | - Alphonse Nyandwi
- Department of Biology, University of Rwanda, Huye, Rwanda
- The Dian Fossey Gorilla Fund International, Karisoke Research Center, Ruhengeri, Rwanda
| | - Winnie Eckardt
- The Dian Fossey Gorilla Fund International, Karisoke Research Center, Ruhengeri, Rwanda
| | | | | | - Kathleen B Pigg
- School of Life Sciences, Arizona State University, PO Box 874501, Tempe, Arizona, 85287-4501, USA
| |
Collapse
|
6
|
de Paiva PP, Nunes JHB, Nonato FR, Ruiz ALTG, Zafred RRT, Sousa IMO, Okubo MY, Kawano DF, Monteiro PA, Foglio MA, Carvalho JE. In Silico, In Vitro, and In Vivo Antitumor and Anti-Inflammatory Evaluation of a Standardized Alkaloid-Enriched Fraction Obtained from Boehmeria caudata Sw. Aerial Parts. Molecules 2020; 25:molecules25174018. [PMID: 32899132 PMCID: PMC7504783 DOI: 10.3390/molecules25174018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 12/24/2022] Open
Abstract
In the context of the cancer-inflammation relationship and the use of natural products as potential antitumor and anti-inflammatory agents, the alkaloid-enriched fraction of Boehmeriacaudata (BcAEF) aerial parts was evaluated. In vitro antiproliferative studies with human tumor cell lines showed high activity at low concentrations. Further investigation on NCI-H460 cells showed an irreversible effect on cell proliferation, with cell cycle arrest at G2/M phase and programmed cell death induction. Molecular docking studies of four alkaloids identified in BcAEF with colchicine’s binding site on β-tubulin were performed, suggesting (−)-C (15R)-hydroxycryptopleurine as the main inductor of the observed mitotic death. In vivo studies showed that BcAEF was able to reduce Ehrlich tumor volume progression by 30 to 40%. Checking myeloperoxidase activity, BcAEF reduced neutrophils migration towards the tumor. The in vivo anti-inflammatory activity was evaluated by chemically induced edema models. In croton oil-induced ear edema and carrageenan (CG)-induced paw edema models, BcAEF reduced edema around 70 to 80% together with inhibition of activation and/or migration of neutrophils to the inflammatory area. All together the results presented herein show BcAEF as a potent antitumor agent combining antiproliferative and anti-inflammatory properties, which could be further explored in (pre)clinical studies.
Collapse
Affiliation(s)
- Paula P. de Paiva
- Institute of Biology, University of Campinas-UNICAMP, Campinas-SP 13083-862, Brazil; (R.R.T.Z.); (P.A.M.); (J.E.C.)
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
- Correspondence: ; Tel.: +55-19-3521-7715
| | - Julia H. B. Nunes
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP 13083-970, Brazil
| | - Fabiana R. Nonato
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
| | - Ana L. T. G. Ruiz
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
| | - Rafael R. T. Zafred
- Institute of Biology, University of Campinas-UNICAMP, Campinas-SP 13083-862, Brazil; (R.R.T.Z.); (P.A.M.); (J.E.C.)
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
| | - Ilza M. O. Sousa
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
| | - Márcia Y. Okubo
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
- Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba-SP 13414-903, Brazil
| | - Daniel F. Kawano
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
| | - Paula A. Monteiro
- Institute of Biology, University of Campinas-UNICAMP, Campinas-SP 13083-862, Brazil; (R.R.T.Z.); (P.A.M.); (J.E.C.)
- Chemical, Biological and Agricultural Pluridisciplinary Research Center (CPQBA), University of Campinas-UNICAMP, Paulínia-SP 13148-218, Brazil; (J.H.B.N.); (F.R.N.); (A.L.T.G.R.); (I.M.O.S.); (M.Y.O.)
| | - Mary A. Foglio
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
| | - João E. Carvalho
- Institute of Biology, University of Campinas-UNICAMP, Campinas-SP 13083-862, Brazil; (R.R.T.Z.); (P.A.M.); (J.E.C.)
- Faculty of Pharmaceutical Sciences, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil; (D.F.K.); (M.A.F.)
| |
Collapse
|
7
|
Wang RN, Milne RI, Du XY, Liu J, Wu ZY. Characteristics and Mutational Hotspots of Plastomes in Debregeasia ( Urticaceae). Front Genet 2020; 11:729. [PMID: 32733543 PMCID: PMC7360830 DOI: 10.3389/fgene.2020.00729] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/15/2020] [Indexed: 12/03/2022] Open
Abstract
Debregeasia is an economically important genus of the nettle family (Urticaceae). Previous systematic studies based on morphology, or using up to four plastome regions, have not satisfactorily resolved relationships within the genus. Here, we report 25 new plastomes for Urticaceae, including 12 plastomes from five Debregeasia species and 13 plastomes from other genera. Together with the one published plastome for Debregeasia, we analyzed plastome structure and character, identified mutation hotspots and loci under selection, and constructed phylogenies. The plastomes of Debregeasia were found to be very conservative, with a size from 155,743 bp to 156,065 bp, and no structural variation. Eleven mutation hotspots were identified, including three (rpoB-trnC-GCA, trnT-GGU-psbD and ycf1) that are highly variable both within Debregeasia and among genera; these show high potential value for future DNA barcoding, population genetics and phylogenetic reconstruction. Selection pressure analysis revealed nine genes (clpP, ndhF, petB, psbA, psbK, rbcL, rpl23, ycf2, and ycf1) that may experience positive selection. Phylogenomic analyses results suggest that Debregeasia was monophyletic, and closest to Boehmeria among genera examined. Within Debregeasia, D. longifolia was sister to D. saeneb, whereas D. elliptica, D. orientalis with D. squamata formed the other subclade. This study enriches organelle genome resources for Urticaceae, and highlights the utility of plastome data for detecting mutation hotspots for evolutionary and systematic analysis.
Collapse
Affiliation(s)
- Ruo-Nan Wang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, China
| | - Richard I Milne
- Institute of Molecular Plant Sciences, School of Biological Sciences, The University of Edinburgh, Edinburgh, United Kingdom
| | - Xin-Yu Du
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jie Liu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Zeng-Yuan Wu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| |
Collapse
|
8
|
Zhou Y, Li LY, Yin X, Zhang QY, Liang H, Tu PF. Sesquiterpenoids from Pilea cavaleriei. Nat Prod Res 2019; 35:1537-1543. [PMID: 33938337 DOI: 10.1080/14786419.2019.1660330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
One new cis p-coumaroyl copaborneol-type sesquiterpenoid (1), together with its known trans isomer (2) and six other known p-coumaroyl humulane-type sesquiterpenoids (3-8), were isolated from the whole plants of Pilea cavaleriei. Their structures were determined by spectroscopic data. Compounds 1-4 exhibited moderate antimycobacterial activity against Mycobacterium tuberculosis H37Rv.
Collapse
Affiliation(s)
- Yong Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China.,Beijing Pharmaceutical Group University of Staff and Workers, Beijing, China
| | - Ling-Yu Li
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xu Yin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Qing-Ying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Hong Liang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
| |
Collapse
|
9
|
Abstract
Two new lignans named neourticol A (1) and neourticol B (2), together with seven known compounds (3-9), were isolated from Urticae Fissae Herba, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1 and 2 possessed the potent anti-complement and anti-inflammatory activities.
Collapse
Affiliation(s)
- Meng-Yue Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Ying Zhang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Hao Zhang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Ru Feng
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Bo Li
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| |
Collapse
|
10
|
Pedersoli GD, Leme FM, Leite VG, Teixeira SP. Anatomy solves the puzzle of explosive pollen release in wind-pollinated urticalean rosids. Am J Bot 2019; 106:489-506. [PMID: 30875436 DOI: 10.1002/ajb2.1254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
PREMISE OF THE STUDY This study details the unusual synorganization of the staminate flower in wind-pollinated urticalean rosids to add the missing pieces that complete the puzzle of the explosive mechanism of pollen release in this group. METHODS Flower buds and flowers were analyzed using light and scanning electron microscopy. KEY RESULTS The pistillode, stamens, and sepals form a floral apparatus that explosively releases pollen to be carried by the wind. The anthers dehisce when the stamens are still inflexed on the floral bud and are enveloped by the sepals and supported by an inflated pistillode. The distension of the filaments presses the pistillode, which decreases the pressure exerted on the anthers by releasing the air accumulated internally through its apical orifice. The extended filaments and the dehiscent free anthers move rapidly outward from the center of the flower. This movement of the filaments is then blocked by the robust basally united sepals, which causes a rapid inversion of the anther position, thus hurling the pollen grains far from the flower. The pollen grains are released grouped by the mucilage produced in high quantity in the cells found in all floral organs. CONCLUSIONS The anatomical structure of the pistillode and the finding of mucilaginous cells are the main features that help in the understanding the explosive mechanism of pollen release in urticalean rosids. The pistillode can be considered an exaptation because it was evolved later to provide a new role in the plant, optimizing male fitness.
Collapse
Affiliation(s)
- Giseli D Pedersoli
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, SP, Brazil
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Flávia M Leme
- Instituto de Biologia, Universidade Estadual de Campinas, R. Monteiro Lobato 255, 13083-862, Campinas, SP, Brazil
- Universidade Federal do Mato Grosso do Sul, Instituto de Biociências, Cidade Universitária, C.P. 549, Campo Grande, 79070-900, MS, Brazil
| | - Viviane G Leite
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, SP, Brazil
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil
| | - Simone P Teixeira
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, 14040-903, Ribeirão Preto, SP, Brazil
| |
Collapse
|
11
|
Almubayedh H, Ahmad R. Ethnopharmacological uses, phytochemistry, biological activities of Debregeasia salicifolia: A review. J Ethnopharmacol 2019; 231:179-186. [PMID: 30453051 DOI: 10.1016/j.jep.2018.11.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Debregeasia salicifolia Rendle (DS) is used traditionally for the treatment of several diseases including; urinary system diseases, bone fractures, boils, diarrhea accompanied with blood, carbuncles, pimples, dermatitis, skin rash, eczema, and tumors. Additionally, it is used as an antiseptic and antifungal agent. AIM OF THE STUDY To document up to date information regarding D. salicifolia and link the traditional uses with its reported pharmacological evidences. The review covers taxonomy, distribution, traditional uses, active phytochemical constituents and pharmacological activities for DS. MATERIALS AND METHODS The electronic databases such as Google Scholar, E-Resource Portal of Imam Abdulrahman bin Faisal University, Scopus, PubMed, Springer Link, etc. as well as textbooks were used to gather all relevant information about DS. RESULTS Ethnomedicinal studies revealed a wide use of DS for various traditional purposes in the south Asian community. The uses for diarrhea, cancer, urinary complaints and skin diseases were supported by pharmacological studies. In-vitro pharmacological studies confirmed its therapeutic activities e.g. antimicrobial, anticancer, and antioxidant. Moreover, analgesic and anti-diarrheal activities were also established in animal's in-vivo activities. Despite enormous literature regarding DS, the main focus of research and interest was antimicrobial and cytotoxic activities. Quantitative and qualitative phytochemical analysis proved the presence of various classes of phytochemicals in DS extract; triterpenes, phytosterols, tannins, flavonoids and anthraquinone. CONCLUSION Though most of the traditional uses for the plant were supported by in-vitro and in-vivo pharmacological studies, however lack of clinical trials and shortage of in-depth mechanistic in-vivo studies was noted in the review. Hence, more elaborative in-vivo studies with quality clinical trials may be focused in order to confirm the safety and efficacy of reported activities in humans which will help explore the plant's therapeutic potentials.
Collapse
Affiliation(s)
- Hanine Almubayedh
- College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Rizwan Ahmad
- Natural Products and Alternative Medicines, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| |
Collapse
|
12
|
da Silva Mathias M, Rodrigues de Oliveira R. Differentiation of the phenolic chemical profiles of Cecropia pachystachya and Cecropia hololeuca. Phytochem Anal 2019; 30:73-82. [PMID: 30144200 DOI: 10.1002/pca.2791] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 06/12/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Cecropia pachystachya and C. hololeuca are common species in Brazil, popularly used to treat respiratory diseases. Phytochemical studies indicate that their leaves are rich in phenolic compounds, mainly C-glycosilated flavonoids. Orientin and isoorientin are reported in both species, while vitexina and isovitexina were reported in C. pachystachya. In addition, both are rich in chlorogenic acid and have some procyanidins. In some cases, syrups and teas are prepared from leaf blends from different species, which may affect the efficacy and safety of this natural medication. This problem motivated the investigation of the chemical profile of leaves of these species. OBJECTIVE The phenolic chemical profiles from C. pachystachya and C. hololeuca methanolic extracts were analysed by ultra-high performance liquid chromatography coupled with a diode array detector and mass spectrometry (UPLC-DAD-MS), to investigate possible differences in their metabolite production. MATERIAL AND METHODS The methanolic extracts of both species were analysed by UPLC-DAD-MS using a C-18 reverse phase column, DAD at 190-400 nm and electrospray ionisation quadruple time-of-flight (ESI-Q-TOF) mass spectrometer. The separation methodology was validated and most of the flavones present in the extracts were quantified. RESULTS Thirty-seven compounds were tentatively identified, including flavonoids, phenolic acids, flavan-3-ols, condensed tannins (procyanidins) and iridoids, through UV analysis and tandem mass spectrometry (MS/MS) spectra obtained in the negative mode. Chlorogenic acid, orientin and isoorientin were observed as the major constituents in both extracts. CONCLUSIONS Cecropia pachystachya presented a more diverse chemical profile than C. hololeuca. The methodology developed herein could be an important tool to analyse commercial Cecropia (embaúba) products.
Collapse
Affiliation(s)
- Marcelo da Silva Mathias
- Laboratório de Ciências Químicas, Centro de Ciência e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Rio de Janeiro, Brazil
| | - Rodrigo Rodrigues de Oliveira
- Laboratório de Ciências Químicas, Centro de Ciência e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Rio de Janeiro, Brazil
| |
Collapse
|
13
|
Abstract
Boehmeria is an important genus; however, no plastid genome has been reported to date. Here we report the complete chloroplast genomes for two Boehmeria species. The chloroplast genomes of Boehmeria umbrosa and Boehmeria spicata were found to be 170920 bp and 170958 in length, respectively, and the GC contents were 35.5 and 35.3%, respectively. The sequences of each species contained 112 unique genes, including 30 tRNA, 4 rRNA, and 78 protein-coding genes. This is the first report of cp genomes for Boehmeria, and will be useful for identifying molecular markers with which to address taxonomic problems in the genus.
Collapse
Affiliation(s)
- Zeng-Yuan Wu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People's Republic of China
| | - Xin-Yu Du
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People's Republic of China
| | - Richard I Milne
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Jie Liu
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People's Republic of China
| | - De-Zhu Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, People's Republic of China
| |
Collapse
|
14
|
Wu ZY, Liu J, Provan J, Wang H, Chen CJ, Cadotte MW, Luo YH, Amorim BS, Li DZ, Milne RI. Testing Darwin's transoceanic dispersal hypothesis for the inland nettle family ( Urticaceae). Ecol Lett 2018; 21:1515-1529. [PMID: 30133154 DOI: 10.1111/ele.13132] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 04/11/2018] [Accepted: 07/05/2018] [Indexed: 12/17/2022]
Abstract
Dispersal is a fundamental ecological process, yet demonstrating the occurrence and importance of long-distance dispersal (LDD) remains difficult, having rarely been examined for widespread, non-coastal plants. To address this issue, we integrated phylogenetic, molecular dating, biogeographical, ecological, seed biology and oceanographic data for the inland Urticaceae. We found that Urticaceae originated in Eurasia c. 69 Ma, followed by ≥ 92 LDD events between landmasses. Under experimental conditions, seeds of many Urticaceae floated for > 220 days, and remained viable after 10 months in seawater, long enough for most detected LDD events, according to oceanographic current modelling. Ecological traits analyses indicated that preferences for disturbed habitats might facilitate LDD. Nearly half of all LDD events involved dioecious taxa, so population establishment in dioecious Urticaceae requires multiple seeds, or occasional selfing. Our work shows that seawater LDD played an important role in shaping the geographical distributions of Urticaceae, providing empirical evidence for Darwin's transoceanic dispersal hypothesis.
Collapse
Affiliation(s)
- Zeng-Yuan Wu
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Jie Liu
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Jim Provan
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, SY23 3DA, UK
| | - Hong Wang
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Chia-Jui Chen
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Marc W Cadotte
- Department of Biological Sciences, University of Toronto-Scarborough, 1265 Military Trail, Toronto, ON, M1C 1A4, Canada.,Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON, M5S 3B2, Canada
| | - Ya-Huang Luo
- Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Bruno S Amorim
- Graduate Program in Biotechnology and Natural Resources, School of Health Sciences, State University of Amazonas, CEP, 69065-001, Manaus-AM, Brazil
| | - De-Zhu Li
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China.,Key Laboratory for Plant and Biodiversity of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Richard I Milne
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3JH, UK
| |
Collapse
|
15
|
Wang MY, Yang Y, Zhou XY, Wang SS, Duan SX, Li XB. The chemical constituents from Urtica fissa leaves. J Asian Nat Prod Res 2018; 20:709-718. [PMID: 28971690 DOI: 10.1080/10286020.2017.1383397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 09/18/2017] [Indexed: 06/07/2023]
Abstract
A new ceramide urticamide (1), two new secolignans urticalactones I (2) and Ⅱ (3), and a new flavonoid glycoside urticaside (4), together with 15 known compounds (4-19), were isolated from the leaves of Urtica fissa, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1, 2, 3, 8, and 13 possessed the potent anti-inflammatory. They could inhibit the release of NO and TNF-α in lipopolysaccharide (LPS) stimulated RAW 264.7 cells, with IC50 values less than 4.0 μM.
Collapse
Affiliation(s)
- Meng-Yue Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Yan Yang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xi-Yan Zhou
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shang-Shang Wang
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shi-Xin Duan
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Xiao-Bo Li
- a School of Pharmacy , Shanghai Jiao Tong University , Shanghai 200240 , China
| |
Collapse
|
16
|
Mustafa A, Ensikat HJ, Weigend M. Stinging hair morphology and wall biomineralization across five plant families: Conserved morphology versus divergent cell wall composition. Am J Bot 2018; 105:1109-1122. [PMID: 30080249 DOI: 10.1002/ajb2.1136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/02/2018] [Indexed: 06/08/2023]
Abstract
PREMISE OF THE STUDY Stinging hairs are striking examples of plant microengineering-the plant equivalent of the hypodermic syringe. The requisite mechanical properties are mostly achieved by cell wall mineralization. Stinging hairs of Urtica dioica (Urticaceae) are known to be mineralized with silica and calcium carbonate and those of Loasaceae also with calcium phosphate, but no comparative study has been provided across different taxa with stinging hairs. METHODS Light microscopy and scanning electron microscopy (SEM) with cryo-SEM and energy-dispersive x-ray spectroscopy were used to analyze morphology and biomineralization of stinging hairs of 43 species from the families Caricaceae, Euphorbiaceae, Loasaceae, Namaceae, and Urticaceae. KEY RESULTS Stinging hair morphology is similar across the taxa studied, in striking contrast to the divergent patterns of biomineralization. Trichome bases are mostly calcified, sometimes silicified, the shafts are mostly calcified, and the apices silicified (Urticaceae), and contain calcium phosphate (Caricaceae, Namaceae), both silica and calcium phosphate (some Loasaceae), or no minerals (Cnidoscolus, Euphorbiaceae). Some stinging hairs are superficially thinly coated with silica over a cell wall otherwise mineralized with calcium carbonate or calcium phosphate. CONCLUSIONS Mineralization patterns are surprisingly diverse and involve three different biominerals deposited in different parts of individual trichomes with calcium phosphate a common component. The physical properties of different wall regions of the stinging trichomes are thus fine-tuned to optimize their function via modulation of wall thickness and differential element deposition. Similar function is apparently achieved through divergent wall compositions.
Collapse
Affiliation(s)
- Adeel Mustafa
- Nees-Institut für Biodiversität der Pflanzen, Rheinische Friedrich-Wilhelms-Universität Bonn, Meckenheimer Allee 170, D-53115, Bonn, Germany
| | - Hans-Jürgen Ensikat
- Nees-Institut für Biodiversität der Pflanzen, Rheinische Friedrich-Wilhelms-Universität Bonn, Meckenheimer Allee 170, D-53115, Bonn, Germany
| | - Maximilian Weigend
- Nees-Institut für Biodiversität der Pflanzen, Rheinische Friedrich-Wilhelms-Universität Bonn, Meckenheimer Allee 170, D-53115, Bonn, Germany
| |
Collapse
|
17
|
Ren HC, Zhang J, Liang H. Two new p-coumaroylated sesquiterpenoids from Pilea cavaleriei. J Asian Nat Prod Res 2018; 20:109-116. [PMID: 28480740 DOI: 10.1080/10286020.2017.1320990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
A new p-coumaroylated santalane-type sesquiterpenoid, 8-p-coumaroyl-α-santalene (1), a new p-coumaroylated oplopanane-type sesquiterpenoid, 8-β-p-coumaroyl-oplopanone (2), and three known p-coumaroylated humulene-type sesquiterpenoids (3-5) were isolated from the ethanol extract of the whole herbs of Pilea cavaleriei. Their structures were elucidated based on the combination of 1D and 2D NMR and HRMS methods. Compound 2 was found to show anti-tuberculosis activity with MIC of 16 μg/ml.
Collapse
Affiliation(s)
- Heng-Chun Ren
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
- b Beijing Increase Medicine Research Institute Co., Ltd. , Beijing 102209 , China
| | - Jun Zhang
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| | - Hong Liang
- a State Key Laboratory of Natural and Biomimetic Drugs , School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| |
Collapse
|
18
|
Abstract
Although the various folk medicine uses and the biological activity of Forsskaolea tenacissima L., few chemical constituents of this plant have been reported, this provoked us to make our study. Forsskamide, a new ceramide was isolated from aerial parts of F. tenacissima L. (Urticaceae). The chemical structure was established by different spectroscopic methods (1H, 13C-NMR, HMBC, HSQC, ROESY, FAB-MS and HR-FAB-MS). Forsskamide showed a moderate cytotoxic activity by (MTT) method against human colorectal carcinoma cell line (HCT-116) with IC50 33.25 μM in comparison with 5-fluorouracil IC50 26.42 μM. While, it did not show any activity against human hepatocarcinaoma cell line (HepG-2).
Collapse
Affiliation(s)
- Hamdy K Assaf
- a Faculty of Pharmacy, Department of Pharmacognosy , Al-Azhar University , Assuit , Egypt
| | - Alaa M Nafady
- a Faculty of Pharmacy, Department of Pharmacognosy , Al-Azhar University , Assuit , Egypt
| | - Ahmed E Allam
- a Faculty of Pharmacy, Department of Pharmacognosy , Al-Azhar University , Assuit , Egypt
| | - Ashraf N E Hamed
- b Faculty of Pharmacy, Department of Pharmacognosy , Minia University , Minia , Egypt
| | - Mohamed S Kamel
- b Faculty of Pharmacy, Department of Pharmacognosy , Minia University , Minia , Egypt
| | - Kuniyoshi Shimizu
- c Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences , Kyushu University , Fukuoka , Japan
| |
Collapse
|
19
|
Rivera-Mondragón A, Ortíz OO, Bijttebier S, Vlietinck A, Apers S, Pieters L, Caballero-George C. Selection of chemical markers for the quality control of medicinal plants of the genus Cecropia. Pharm Biol 2017; 55:1500-1512. [PMID: 28372473 PMCID: PMC6130728 DOI: 10.1080/13880209.2017.1307421] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
CONTEXT Several Cecropia (Cecropiaceae) species are traditionally used in Latin America for the treatment of a variety of diseases including diabetes, arterial hypertension, asthma, bronchitis, anxiety, and inflammation. At present, a number of commercial products based on these plants have been introduced into the market with very little information on methods for guaranteeing their quality and safety. OBJECTIVE This work proposes potential chemical markers for the quality control of the raw materials of Cecropia obtusifolia Bertol., Cecropia peltata L., Cecropia glaziovii Snethl., Cecropia pachystachya Trécul, and Cecropia hololeuca Miq. METHODS The Herbal Chemical Marker Ranking System (Herb MaRS) developed by the National Institute of Complementary Medicine (NICM) at the University of Western Sydney was used for selecting chemical markers for the quality control of selected medicinal species of Cecropia. This review covers the period from 1982 to 2016. RESULTS Chlorogenic acid, flavonoidal glycosides (orientin, isoorientin, vitexin, isovitexin, and rutin), catechin, epicatechin, procyanidins (B2, B5, and C1), steroids (β-sitosterol), and triterpenoids (α-amyrin, pomolic, tormentic and ursolic acids) were selected as chemical markers for the quality control of the leaves. CONCLUSION It is necessary to establish comprehensive standards for guaranteeing quality, safety and efficacy of herbal drugs. The selection of adequate chemical markers for quality control purposes requires a good knowledge about the chemical composition of medicinal plants and their associated biological properties. To the best of our knowledge this review article is the first to address the identification and quantitative determination of the chemical markers for the genus Cecropia.
Collapse
Affiliation(s)
- Andrés Rivera-Mondragón
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Orlando O. Ortíz
- Herbarium PMA, Universidad de Panamá, Estafeta Universitaria, Panama City, Republic of Panama
| | - Sebastiaan Bijttebier
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Arnold Vlietinck
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Sandra Apers
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Luc Pieters
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Catherina Caballero-George
- Group of Pharmaceutical Research, Institute of Scientific Research and High Technology Services (INDICASAT-AIP), Panama, Republic of Panama
- CONTACT Catherina Caballero-GeorgeGroup of Pharmaceutical Research, Institute of Scientific Research and High Technology Services (INDICASAT-AIP), Building 219, City of Knowledge, Panama, Republic of Panama
| |
Collapse
|
20
|
Feng X, Wang M, Cheng J, Li X. Two new secolignans with in vitro anti-inflammatory activities from Urtica fissa rhizomes. J Nat Med 2017; 71:553-557. [PMID: 28243817 DOI: 10.1007/s11418-017-1078-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/25/2017] [Indexed: 10/20/2022]
Abstract
Two new secolignans, urticin A (1) and urticin B (2), were isolated from the ethanol extract of Urtica fissa rhizomes. Their structures were elucidated on the basis of extensive spectroscopic evidence (UV, IR, HR-ESI-MS, and NMR). Urticin A and urticin B possessed in vitro anti-inflammatory activities, which significantly inhibited the TNF-α and NO release induced by LPS in RAW 264.7 cells.
Collapse
Affiliation(s)
- Xiaoru Feng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Mengyue Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Jun Cheng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaobo Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China. .,Enthomedicine Research Center, Yunnan Dali Research Academy of Shanghai Jiao Tong University, Dali, 671000, China.
| |
Collapse
|
21
|
Grosse-Veldmann B, Nürk NM, Smissen R, Breitwieser I, Quandt D, Weigend M. Pulling the sting out of nettle systematics - A comprehensive phylogeny of the genus Urtica L. ( Urticaceae). Mol Phylogenet Evol 2016; 102:9-19. [PMID: 27211697 DOI: 10.1016/j.ympev.2016.05.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 05/14/2016] [Accepted: 05/18/2016] [Indexed: 11/22/2022]
Abstract
The genus Urtica L. is subcosmopolitan, found on all continents (except Antarctica) and most extratropical islands and ranges from Alaska to Patagonia, Spitzbergen to the Cape and Camtschatka to the subantarctic islands. However, throughout its geographical range morphologically nearly indistinguishable species are found alongside morphologically quite disparate species, with the overall diversity of morphological characters extremely limited. The systematics of Urtica have puzzled scientists for the past 200years and no single comprehensive attempt at understanding infrageneric relationships has been published in the past, nor are species delimitations unequivocally established. We here provide the first comprehensive phylogeny of the genus including 61 of the 63 species recognized, represented by 144 ingroup accessions and 14 outgroup taxa. The markers ITS1-5.8S-ITS2, psbA-trnH intergenic spacer, trnL-trnF and trnS-trnG are used. The phylogeny is well resolved. The eastern Asian Zhengyia shennongensis T. Deng, D.G. Zhang & H. Sun is retrieved as sister to Urtica. Within Urtica, a clade comprising the western Eurasian species U. pilulifera L. and U. neubaueri Chrtek is sister to all other species of the genus. The phylogenetic analyses retrieve numerous well-supported clades, suggesting previously unsuspected relationships and implying that classically used taxonomic characters such as leaf morphology and growth habit are highly homoplasious. Species delimitation is problematical, and several accessions assigned to Urtica dioica L. (as subspecies) are retrieved in widely different places in the phylogeny. The genus seems to have undergone numerous dispersal-establishment events both between continents and onto different islands. Three recent species radiations are inferred, one in America centered in the Andes, one in New Zealand, and one in northern Eurasia which includes Urtica dioica s.str. sensu Henning et al. (2014). The present study provides the basis of a critical re-examination of species limits and taxonomy, but also of the dispersal ecology of this widespread plant group and an in-depth study of the three clades with recent radiations.
Collapse
|
22
|
Wang W, Wu Z. Six new species of Elatostema ( Urticaceae) from Yunnan. Plant Divers 2016; 38:17-22. [PMID: 30159446 PMCID: PMC6112091 DOI: 10.1016/j.pld.2015.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/04/2015] [Accepted: 05/04/2015] [Indexed: 06/08/2023]
Abstract
Six new species of the genus Elatostema (Urticaceae), E. dentatocaudatum, E. baoshanense, E. cuipingfengense, E. viridicostatum, E. flexuosicaule and E. globosostigmatum, from Yunnan Province, China are described and illustrated. The diagnostic differences between the six new species and their respective allies are given.
Collapse
Affiliation(s)
- Wentsai Wang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Zengyuan Wu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| |
Collapse
|
23
|
Chen ZH, Zhang H, Tao SH, Luo Z, Zhong CQ, Guo LB. Norlignans from Pouzolzia zeylanica var. microphylla and their nitric oxide inhibitory activity. J Asian Nat Prod Res 2015; 17:959-966. [PMID: 26067593 DOI: 10.1080/10286020.2015.1048685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Five new compounds, pouzolignan F [4-hydroxy-3-(3,5-dihydroxyphenyl)-2-[bis(4-hydroxy-3-methoxyphenyl)methyl]butyl acetate] (1), pouzolignan G [4-hydroxy-3-(3,5-dihydroxyphenyl)-2-[(4-hydroxy-3,5-dimethoxyphenyl)(4-hydroxy-3-methoxyphenyl)methyl]butyl acetate] (2), pouzolignan H [1,4-dihydroxy-3-(3,5-dihydroxyphenyl)-2-[bis(4-hydroxy-3-methoxyphenyl)methyl]butane] (3), pouzolignan I [1,4-dihydroxy-3-(3,5-dihydroxyphenyl)-2-[(4-hydroxy-3,5-dime thoxyphenyl)-(4-hydroxy-3-methoxyphenyl)methyl]butane] (4), and pouzolignan J [1,4-dihydroxy-3-(3,5-dihydroxyphenyl) -2-[(3,4,5-trimethoxyphenyl)(4-hydroxy-3-methoxyphenyl)methyl]butane] (5), along with two known compounds, indolyl-3-carboxylic acid (6) and uracil (7), were isolated from the aerial parts of Pouzolzia zeylanica (L.) Benn. var. microphylla (Wedd.) W.T.Wang. The structures of these compounds were characterized based on spectroscopic methods, including IR, NMR ((1)H-(1)H COSY, HSQC, HMBC, and NOESY), and HR-ESI/TOF-MS experiments. All the new norlignans were assayed for inhibitory activity against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in mouse peritoneal macrophages.
Collapse
Affiliation(s)
- Zhuo-Han Chen
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Hui Zhang
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Shu-Hong Tao
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Zhao Luo
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Chu-Qian Zhong
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| | - Li-Bing Guo
- a School of Traditional Chinese Medicine, Guangdong Pharmaceutical University , Guangzhou 510006 , China
| |
Collapse
|
24
|
Dorr LJ, Stergios B. Four new species of Andean Pilea ( Urticaceae), with additional notes on the genus in Venezuela. PhytoKeys 2014; 42:57-76. [PMID: 25383012 PMCID: PMC4225075 DOI: 10.3897/phytokeys.42.8455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 10/16/2014] [Indexed: 05/31/2023]
Abstract
Four new species of Pilea (Urticaceae) from the Andes of Venezuela are described and illustrated: Pileamatthewii sp. nov., Pileamiguelii sp. nov., Pileanicholasii sp. nov., and Pileanidiae sp. nov. The affinities of these species and their positions within the informal classifications of Pilea proposed by Weddell and Killip are discussed. Notes on other species of Pilea found in Venezuela also are presented.
Collapse
Affiliation(s)
- Laurence J. Dorr
- Department of Botany, MRC-166, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, USA
| | - Basil Stergios
- Universidad Nacional Experimental de los Llanos Occidentales “Ezequiel Zamora” (UNELLEZ), Mesa de Cavacas, Guanare, Estado Portuguesa 3323, Venezuela
| |
Collapse
|
25
|
Bossu A, Bertaudière-Montès V, Dubut V, Manel S. Microsatellite primers in Parietaria judaica ( Urticaceae) to assess genetic diversity and structure in urban landscapes. Appl Plant Sci 2014; 2:apps1400036. [PMID: 25225626 PMCID: PMC4162664 DOI: 10.3732/apps.1400036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 06/18/2014] [Indexed: 06/03/2023]
Abstract
PREMISE OF THE STUDY Urbanization is one of the main factors contributing to loss of genetic diversity, as the resulting landscape fragmentation and habitat loss induce species isolation. However, studies of genetic structure and diversity in urbanized landscapes are still rare. We characterized microsatellite primers for Parietaria judaica to study this environment. • METHODS AND RESULTS Eleven microsatellite loci from P. judaica, an urban plant, were isolated using shotgun pyrosequencing, and the simple sequence repeat (SSR) markers were screened in 20 individuals of P. judaica. The loci were tested on 166 individuals from three populations in different cities. The number of alleles ranged from two to 19, and expected and observed heterozygosity values ranged from 0.019 to 0.912 and 0.019 to 0.448, respectively. • CONCLUSIONS The markers amplified well in the species and will be useful for examining genetic diversity and population genetic structure in this urban plant.
Collapse
Affiliation(s)
- Angèle Bossu
- Aix Marseille Université, Institut de recherche pour le développement (IRD), Laboratoire Population Environnement Développement (LPED) UMR_D151, 13331 Marseille, France
| | - Valérie Bertaudière-Montès
- Aix Marseille Université, Institut de recherche pour le développement (IRD), Laboratoire Population Environnement Développement (LPED) UMR_D151, 13331 Marseille, France
| | - Vincent Dubut
- Aix Marseille Université, Centre national de la recherche scientifique (CNRS), IRD, Univ. Avignon, IMBE—UMR7263, 13331 Marseille CEDEX 3, France
| | - Stéphanie Manel
- Aix Marseille Université, Institut de recherche pour le développement (IRD), Laboratoire Population Environnement Développement (LPED) UMR_D151, 13331 Marseille, France
- Centre de coopération internationale en recherche agronomique pour le développement (CIRAD), UMR AMAP, TA A51/PS2, 34398 Montpellier CEDEX 5, France
| |
Collapse
|
26
|
Zhou Y, Ren HC, Qin RD, Zhang QY, Liang H. New phenolic glycosides from Pilea cavaleriei. J Asian Nat Prod Res 2014; 16:565-573. [PMID: 24911100 DOI: 10.1080/10286020.2014.922552] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
Five new phenolic glycosides, 2-hydroxy-(2'E)-prenyl benzoate-2,4'-di-O-β-D-glucopyranoside (1), 2-hydroxy-(2'E)-prenyl benzoate-2-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranoside (2), 4-methylphenol-1-O-α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside (3), 4-methylphenol-1-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranoside (4), and 3,5-dimethoxyphenol-1-O-β-D-apiofuranosyl-(1 → 2)-β-D-glucopyranoside (5), together with six known glycosides (6-11), were isolated from the n-BuOH fraction of the EtOH extract of Pilea cavaleriei Levl subsp. cavaleriei. Their structures were elucidated by extensive spectroscopic analysis, including 1D and 2D NMR spectroscopy as well as HR-ESI-MS, and chemical evidences. All these compounds were isolated from the genus Pilea for the first time.
Collapse
Affiliation(s)
- Yong Zhou
- a State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University , Beijing 100191 , China
| | | | | | | | | |
Collapse
|
27
|
Farag MA, Weigend M, Luebert F, Brokamp G, Wessjohann LA. Phytochemical, phylogenetic, and anti-inflammatory evaluation of 43 Urtica accessions (stinging nettle) based on UPLC-Q-TOF-MS metabolomic profiles. Phytochemistry 2013; 96:170-183. [PMID: 24169378 DOI: 10.1016/j.phytochem.2013.09.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 06/02/2023]
Abstract
Several species of the genus Urtica (especially Urtica dioica, Urticaceae), are used medicinally to treat a variety of ailments. To better understand the chemical diversity of the genus and to compare different accessions and different taxa of Urtica, 63 leaf samples representing a broad geographical, taxonomical and morphological diversity were evaluated under controlled conditions. A molecular phylogeny for all taxa investigated was prepared to compare phytochemical similarity with phylogenetic relatedness. Metabolites were analyzed via UPLC-PDA-MS and multivariate data analyses. In total, 43 metabolites were identified, with phenolic compounds and hydroxy fatty acids as the dominant substance groups. Principal component analysis (PCA) and hierarchical clustering analysis (HCA) provides a first structured chemotaxonomy of the genus. The molecular data present a highly resolved phylogeny with well-supported clades and subclades. U. dioica is retrieved as both para- and polyphyletic. European members of the U. dioica group and the North American subspecies share a rather similar metabolite profile and were largely retrieved as one, nearly exclusive cluster by metabolite data. This latter cluster also includes - remotely related - Urtica urens, which is pharmaceutically used in the same way as U. dioica. However, most highly supported phylogenetic clades were not retrieved in the metabolite cluster analyses. Overall, metabolite profiles indicate considerable phytochemical diversity in the genus, which largely falls into a group characterized by high contents of hydroxy fatty acids (e.g., most Andean-American taxa) and another group characterized by high contents of phenolic acids (especially the U. dioica-clade). Anti-inflammatory in vitro COX1 enzyme inhibition assays suggest that bioactivity may be predicted by gross metabolic profiling in Urtica.
Collapse
Affiliation(s)
- Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., P.B. 11562, Cairo, Egypt; Leibniz Institute of Plant Biochemistry, Dept. Bioorganic Chemistry, Weinberg 3, D-06120Halle (Saale), Germany
| | | | | | | | | |
Collapse
|
28
|
Abstract
Phytochemical investigation of the leaves of Cecropia schreberiana Miq. (Urticaceae) led to the isolation of four triterpenoids (1-4), three flavone C-glycosides (5-7), two flavan-3-ols (8, 9), two flavanolignans (10, 11), and two proanthocyanidins (12, 13). All compounds were isolated from C. schreberiana for the first time. This is the first report demonstrating the presence of arjunolic acid (4), cinchonain Ia (10), and cinchonain Ib (11) in the Urticaceae family. The occurrence of flavanolignans within the family Urticaceae supports the likelihood that such compounds are more common within the class Magnoliopsida than previously thought.
Collapse
Affiliation(s)
- Jun Li
- Department of Pharmacognosy and Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi 38677-1848, USA ; Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, P. R. China
| | | | | | | | | | | |
Collapse
|
29
|
Monro AK, Wei YG, Chen CJ. Three new species of Pilea ( Urticaceae) from limestone karst in China. PhytoKeys 2012:51-66. [PMID: 23717190 PMCID: PMC3597003 DOI: 10.3897/phytokeys.19.3968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 12/11/2012] [Indexed: 05/16/2023]
Abstract
Three hitherto undescribed species of Pilea (Urticaceae) from limestone karst in China are described and illustrated. Affinities of the species are discussed and Global Species Conservation Assessments presented. The new species are Pilea cavernicola A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Vulnerable) which most closely resembles Pilea scripta (Buch.-Ham. ex D.Don) Wedd. and Pilea gracilis Handel-Mazzetti, Pilea shizongensis A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Endangered) which is most similar to Pilea aquarum Dunn and Pilea guizhouensis A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Vulnerable) which resembles Pilea boniana Gagnep. and Pilea rubriflora C. Wright mostclosely.
Collapse
Affiliation(s)
- Alex K. Monro
- Department of Life Sciences, The Natural History Museum, London, SW7 5BD, United Kingdom
- The Herbarium, The Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, United Kingdom
| | - Y. G. Wei
- Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin, Guangxi 541006, People’s Republic of China
| | - C. J. Chen
- Chinese National Herbarium, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, People’s Republic of China
| |
Collapse
|
30
|
Wu ZY, Wang WT, Wang H, Li DZ. Two new species of Elatostema ( Urticaceae) from southeast Yunnan, China. PhytoKeys 2011; 7:57-62. [PMID: 22287926 PMCID: PMC3261043 DOI: 10.3897/phytokeys.7.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 11/18/2011] [Indexed: 05/31/2023]
Abstract
Elatostema pleiophlebium and Elatostema malipoense, two endemic species from southeast Yunnan of China, are described and illustrated. Their diagnostic characters, description and relationship with morphologically similar species are also given. Elatostema pleiophlebium is easily recognised by its glabrous stem and leaf blade, and its longitudinally 1-ribbed outer staminate bracts. Elatostema malipoense is morphologically distinct for its tuberculate achene and pistillate receptacle which is puberulous. Both new species are known only from their type localities, and they are proposed to be classified as critically endangered.
Collapse
Affiliation(s)
- Zeng-Yuan Wu
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming Yunnan 650201, China
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-Tsai Wang
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Hong Wang
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming Yunnan 650201, China
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - De-Zhu Li
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming Yunnan 650201, China
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| |
Collapse
|