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You searched for: Journal name Phytochemistry letters Remove constraint Journal name: Phytochemistry letters Publication year rev 7983-2017 Remove constraint Publication year rev: 7983-2017 Source 2017 v.22 Remove constraint Source: 2017 v.22
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1. Abiotic factors influencing podophyllotoxin and yatein overproduction in Leptohyptis macrostachys cultivated in vitro

Author:
Paloma R. Meira; Juceni P. David; Erika M. de O. Ribeiro; José R.F. Santana; Hugo N. Brandão; Lenaldo M. de Oliveira; Jorge M. David; Héctor H. Medrado; José F.B. Pastore
Source:
Phytochemistry letters 2017 v.22 pp. 287-292
ISSN:
1874-3900
Subject:
cultivars; environmental factors; gibberellic acid; high performance liquid chromatography; podophyllotoxin; principal component analysis; seeds; sucrose; tissue culture; Brazil
Abstract:
... This work describes an in vitro propagation protocol for the large-scale cultivation of Leptohyptis macrostachys (Benth.) Harley & JFB Pastore and the influence of abiotic factors on podophyllotoxin and yatein production. The plant was established from seeds collected in Chapada Diamantina, BA, Brazil and submitted to different growth mediums and physical conditions. The podophyllotoxin and yatein ...
DOI:
10.1016/j.phytol.2017.10.016

2. Alpha-glucosidase and alpha-amylase inhibiting thiodiketopiperazines from the endophytic fungus Setosphaeria rostrata isolated from the medicinal plant Costus speciosus in Sri Lanka

Author:
Ryan M. Centko; Pamoda B. Ratnaweera; Christina Tysoe; Stephen G. Withers; E. Dilip de Silva; Raymond J. Andersen
Source:
Phytochemistry letters 2017 v.22 pp. 76-80
ISSN:
1874-3900
Subject:
Cheilocostus speciosus; Setosphaeria rostrata; alpha-amylase; alpha-glucosidase; endophytes; enzyme inhibitors; fungi; leaves; medicinal plants; nuclear magnetic resonance spectroscopy; swine; Sri Lanka
Abstract:
... Three new thiodiketopiperazine derivatives, rostratazine A (1), rostratazine B (2) and rostratazine C (3) along with exserohilone (4) and boydine A (5) were isolated and identified from the laboratory culture of Setosphaeria rostrata, an endophytic fungus obtained from the fresh asymptomatic leaf tissues of the medicinal plant Costus speciosus from Sri Lanka. The structures of compounds 1–3 were e ...
DOI:
10.1016/j.phytol.2017.09.004

3. Benzophenone derivatives from the plant endophytic fungus, Pestalotiopsis sp.

Author:
Ren-Yu Song; Yi Liu; Rui-Huan Liu; Xiao-Bing Wang; Tian-Xiao Li; Ling-Yi Kong; Ming-Hua Yang
Source:
Phytochemistry letters 2017 v.22 pp. 189-193
ISSN:
1874-3900
Subject:
Candida glabrata; Pestalotiopsis; antifungal properties; bacteria; benzophenones; circular dichroism spectroscopy; cytotoxicity; enantiomers; endophytes; fungi; inhibitory concentration 50
Abstract:
... Two new (1–2) and one known (3) benzophenone derivatives, along with five known ambuic acid analogues (4–8) were isolated from the solid cultures of a Pestalotiopsis sp. Compound 2 represented both enantiomeric and atropisomeric isomers, and the absolute configurations of enantiomers [(−)-2 and (+)-2] were determined by electronic circular dichroism (ECD) calculations. All the isolates were evalua ...
DOI:
10.1016/j.phytol.2017.10.006

4. Chemical constituents from the fungus Stereum sp. YMF1.04183

Author:
Jun-Mei Yan; Xin Wang; Meng-Qing Tian; Cheng-Mang Liu; Ke-Qin Zhang; Guo-Hong Li
Source:
Phytochemistry letters 2017 v.22 pp. 6-8
ISSN:
1874-3900
Subject:
Caenorhabditis elegans; Stereum; chemical composition; culture media; ethyl acetate; fungi; nematicidal properties; sesquiterpenoids
Abstract:
... The chemical constituents of the basidiomycete Stereum sp. YMF1.04183 were studied. Three new sesquiterpenes, stereumenes A–C (1–3), were isolated and identified from the EtOAc extract of Stereum sp. YMF1.04183 culture broth. Stereumene B showed weak nematicidal activity against Caenorhabditis elegans. ...
DOI:
10.1016/j.phytol.2017.08.001

5. Contents of macro-, microelements and long-lived radionuclides in the medicinal plants belonging to the wetland community of Siberian region, Russia

Author:
Nadezhda K. Ryzhakova; Larisa G. Babeshina; Alla G. Kondratyeva; Darya Y. Sechnaya
Source:
Phytochemistry letters 2017 v.22 pp. 280-286
ISSN:
1874-3900
Subject:
Andromeda polifolia; Betula pubescens; Chamaedaphne calyculata; Comarum palustre; Pinus sibirica; Pinus sylvestris; Polytrichum; Rhododendron tomentosum; Rubus chamaemorus; Sphagnum fuscum; Vaccinium oxycoccos; Vaccinium uliginosum; bark; drugs; gamma radiation; germanium; lawns and turf; medicinal plants; radionuclides; roots; semiconductors; shoots; spectrometers; wetlands; Russia
Abstract:
... Studied contents of macro-, microelements and long-lived radionuclides in the following medicinal plants belonging to the wetland community of Siberian region, Russia: Sphagnum fuscum (Schimp.) Klinggr., Sphagnum balticum (Russ.) Russ. ex С. Jens., Polytrichum strictum Brid., Pinus sylvestris L., Pinus sibirica Du Tour, Betula pubescens Ehrh., Andromeda polifolia L., Ledum palustre L., Oxycoccus p ...
DOI:
10.1016/j.phytol.2017.10.001

6. Curvularin derivatives from the soil-derived fungus Aspergillus polyporicola PSU-RSPG187

Author:
Jutatip Choochuay; Xin Xu; Vatcharin Rukachaisirikul; Piyada Guedduaythong; Souwalak Phongpaichit; Jariya Sakayaroj; Jing Chen; Xu Shen
Source:
Phytochemistry letters 2017 v.22 pp. 122-127
ISSN:
1874-3900
Subject:
Aspergillus; Cryptococcus neoformans; antifungal properties; culture media; curvularin; cytochalasins; cytotoxicity; fungi; inhibitory concentration 50; spectroscopy
Abstract:
... Two new curvularin derivatives, curvulopyran (1) and ent-curvulone A (2), along with ten known compounds including five cytochalasins and five curvularins, were isolated from a culture broth of the soil-derived fungus Aspergillus polyporicola PSU-RSPG187. Their structures were determined by spectroscopic methods. Known aspochalasin D displayed moderate antifungal activity against flucytosine–resis ...
DOI:
10.1016/j.phytol.2017.09.011

7. Cytosporone derivatives from the endophytic fungus Phomopsis sp. PSU-H188

Author:
Thippaya Kongprapan; Xin Xu; Vatcharin Rukachaisirikul; Souwalak Phongpaichit; Jariya Sakayaroj; Jing Chen; Xu Shen
Source:
Phytochemistry letters 2017 v.22 pp. 219-223
ISSN:
1874-3900
Subject:
Diaporthe; antibacterial properties; antibiotic resistance; cytotoxicity; endophytes; fungi; glucose; hepatocytes; inhibitory concentration 50; islets of Langerhans; median effective concentration; methicillin; methicillin-resistant Staphylococcus aureus; mice; spectral analysis
Abstract:
... Two new cytosporone derivatives (1 and 2) were isolated from the endophytic fungus Phomopsis sp. PSU-H188 together with 19 known compounds. Their structures were elucidated by analysis of spectroscopic data. Known mycoepoxydiene showed potent cytotoxic activity towards both MCF-7 and noncancerous Vero cell lines with the respective IC50 values of 9.27 and 4.06μM. It exhibited inhibition on glucose ...
DOI:
10.1016/j.phytol.2017.10.002

8. Cytotoxic abietane-type diterpenoids from twigs and leaves of Croton laevigatus

Author:
Jin-Tong Song; Xiao-Yu Liu; Ai-Ling Li; Xiao-Ling Wang; Tao Shen; Dong-Mei Ren; Hong-Xiang Lou; Xiao-Ning Wang
Source:
Phytochemistry letters 2017 v.22 pp. 241-246
ISSN:
1874-3900
Subject:
Croton; branches; cytotoxicity; diterpenoids; leaves; neoplasm cells; neoplasms; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Seven new abietane-type diterpenoids, crotolaevigatones A–G (1–7), one new aromatic compound, hexyl Z-ferulate (8), along with three known diterpenoids (9–11) and one known aromatic ester, hexyl E-ferulate (12), were obtained from the twigs and leaves of Croton laevigatus. The structures of all isolated compounds were established on the basis of extensive NMR and MS spectroscopic analyses. Compoun ...
DOI:
10.1016/j.phytol.2017.10.007

9. Cytotoxic cycloartane triterpenoids from the leaves of Markhamia stipulata var. canaense

Author:
Trong Nghia Ngo; Nhat Minh Phan; Trong Dat Bui; Van Son Dang; Cong Luan Tran; Dinh Tri Mai; Tan Phat Nguyen
Source:
Phytochemistry letters 2017 v.22 pp. 251-254
ISSN:
1874-3900
Subject:
chromatography; cytotoxicity; ethyl acetate; human cell lines; inhibitory concentration 50; leaves; neoplasms; nuclear magnetic resonance spectroscopy; triterpenoids
Abstract:
... From the most cytotoxic fraction of the ethyl acetate extract of Markhamia stipulata var. canaense V.S. Dang leaves, two new cycloartane-type triterpenoids, named Markhacanasin A (1) and Markhacanasin B (2); were isolated by various chromatographic methods Their structures were elucidated by IR, UV, HR-ESI–MS, NMR (1D & 2D) experiments. The cytotoxicity of two new compounds against five human canc ...
DOI:
10.1016/j.phytol.2017.10.020

10. Five new indole derivatives from the cyanobacterium Moorea producens

Author:
Weina Jiang; Yingyue Bu; Mioko Kawaguchi; Hiroki Osada; Masayuki Fukuoka; Hajime Uchida; Ryuichi Watanabe; Toshiyuki Suzuki; Hiroshi Nagai
Source:
Phytochemistry letters 2017 v.22 pp. 163-166
ISSN:
1874-3900
Subject:
Bacillariophyceae; Moorea producens; antibacterial properties; chemical analysis; cytotoxicity; growth retardation; hydrophilicity
Abstract:
... Chemical analysis of the hydrophilic fraction from marine cyanobacterium Moorea producens extracts led to the isolation of five new indole derivatives (1-5). So far, 2-formyl-4,5,6,7-tetrahydroindole has been reported only for 6 from the nature, consequently compounds 1-5 were the second representatives of this class. Cytotoxicity, diatom growth inhibition, and antibacterial activity tests for com ...
DOI:
10.1016/j.phytol.2017.09.025

11. Floral volatile profile in Pleurothallidinae, an orchid subtribe pollinated by flies: ecological and phylogenetic considerations

Author:
Poliana Cardoso-Gustavson; Silvia Ribeiro de Souza; Fábio de Barros
Source:
Phytochemistry letters 2017 v.22 pp. 49-55
ISSN:
1874-3900
Subject:
Diptera; Orchidaceae; alkanes; flowering; mating systems; odors; pollinators; synapomorphy; volatile compounds
Abstract:
... The Pleurothallidinae are recognized as the largest orchid group pollinated by Diptera. This subtribe has been focus of ongoing phylogenetic studies, in which the floral biology and mating systems of their representatives have been recently assessed and some synapomorphies pointed out, all of them regarding features or processes occurring in flowers. Data about the flower volatiles are still scarc ...
DOI:
10.1016/j.phytol.2017.09.005

12. Four new phenylpropanoid glycosides from Clausena dunniana var. robustaand their antiinflammatory activities

Author:
Yigong Guo; Shenglan Zhu; Guojing Wu; Mengling Huang; Shikai Yan; Huizi Jin; Weidong Zhang
Source:
Phytochemistry letters 2017 v.22 pp. 138-141
ISSN:
1874-3900
Subject:
Clausena; anti-inflammatory activity; branches; glycosides; leaves; nuclear magnetic resonance spectroscopy; spectral analysis; transcription factor NF-kappa B
Abstract:
... Four new phenylpropanoid glycosides, clausenaglycosides A–D (1–4), along with fourteen known compounds (5–18) were isolated from the leaves and twigs of Clausena dunniana var. robusta. The structures of the isolated compounds were determined by a combination of 1D and 2D NMR, MS, and CD spectroscopic data. The NF-κB inhibitory activity was evaluated in HeLa cells. Compound 17 displayed a moderate ...
DOI:
10.1016/j.phytol.2017.09.020

13. Further chemical constituents from Sinningia canescens and S. leucotricha (Gesneriaceae)

Author:
Maria Helena Verdan; Dilamara R. Scharf; Andersson Barison; Marcos J. Salvador; Maria Élida A. Stefanello
Source:
Phytochemistry letters 2017 v.22 pp. 205-209
ISSN:
1874-3900
Subject:
Sinningia; chemical composition; sesquiterpenoids; spectroscopy; tubers
Abstract:
... Four new compounds were isolated from the tubers of Sinningia canescens and S. leucotricha: one naphthoquinone, 7-methoxy-8-hydroxy-α-dunnione (1); two arylbenzofurans, sinningial A (2) and B (3); and one sesquiterpene, 11-epi-subergorgiol (4). Seventeen additional known compounds were isolated and identified. The structures of all compounds were determined by spectroscopic and MS analysis. ...
DOI:
10.1016/j.phytol.2017.10.013

14. Isolation and structure elucidation of flavonoids from Amburana cearensis resin and identification of human DNA topoisomerase II-α inhibitors

Author:
Geane Pereira de Oliveira; Telma Maria Guedes da Silva; Celso Amorim Camara; Andréa Lopes Bandeira Delmiro Santana; Magna Suzana Alexandre Moreira; Tania Maria Sarmento Silva
Source:
Phytochemistry letters 2017 v.22 pp. 61-70
ISSN:
1874-3900
Subject:
DNA topoisomerase; Fabaceae; absorption; chalcones; humans; isoflavones; mass spectrometry; nuclear magnetic resonance spectroscopy; phenolic compounds; traditional medicine; ultra-performance liquid chromatography
Abstract:
... Amburana cearensis, a plant in the Fabaceae family, is extensively used in folk medicine to treat grippes, coughs, bronchitis, sinusitis and external ulcers. Ultra-performance liquid chromatography coupled with diode array and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF-MS/MS) and combined use of data-independent acquisition (MSE) were used for profiling and structural characterizat ...
DOI:
10.1016/j.phytol.2017.09.006

15. Isopimarane-type diterpenoids from Callicarpa macrophylla vahl

Author:
Zhen-Hui Wang; Jian Huang; Chao Niu; Jin-Hui Wang; Bin Wu
Source:
Phytochemistry letters 2017 v.22 pp. 224-228
ISSN:
1874-3900
Subject:
Callicarpa macrophylla; diterpenoids; macrophages; nitric oxide; nuclear magnetic resonance spectroscopy
Abstract:
... Three new isopimarane-type diterpenoids, named callicapene M1 (1), callicapene M2 (2), and callicapene M3 (3), together with four known isopimarane-type diterpenoids (4, 5, 6, 7), were isolated from the Callicarpa macrophylla Vahl. Their structures were elucidated by spectroscopic techniques (IR, UV, MS, 1D, 2D NMR). The isolated compounds 6 and 7 exhibited potent inhibitory activity with inhibiti ...
DOI:
10.1016/j.phytol.2017.10.010

16. Labdane and norlabdane diterpenoids from the aerial parts of Leonurus japonicus

Author:
Ly T.T. Nguyen; Huong K.T. Vo; Son V. Dang; Tho H. Le; Ly D. Ha; Le-Thu T. Nguyen; Lien-Hoa D. Nguyen
Source:
Phytochemistry letters 2017 v.22 pp. 174-178
ISSN:
1874-3900
Subject:
Leonurus japonicus; acarbose; aerial parts; alpha-glucosidase; hexane; inhibitory concentration 50; labdane; nuclear magnetic resonance spectroscopy
Abstract:
... A new labdane diterpenoid, leojaponicin (1), a novel norlabdane, methyl 15,16-dinor-7-oxolabda-8-ene-14-oate (2), along with four known labdanes, hispanone (3), leoheteronins A (4) and B (5), 15-methoxyleoheteronin B (6), and three norlabdanes, 14,15,16-trinor-7-oxolabda-8-ene-13-oic acid (7), methyl 14,15,16-trinor-7-oxolabda-8-ene-13-oate (8), 14,15-dinor-8-labdene-7,13-dione (9), and a steroid, ...
DOI:
10.1016/j.phytol.2017.09.023

17. Lanostane triterpenes isolated from epidermis of Poria cocos

Author:
Hong-Jing Dong; Zhen-Zhen Xue; Yan-Ling Geng; Xiao Wang; Bin Yang
Source:
Phytochemistry letters 2017 v.22 pp. 102-106
ISSN:
1874-3900
Subject:
Cercopithecus aethiops; Wolfiporia cocos; carcinoma; chemical structure; cytotoxicity; hepatoma; human cell lines; humans; inhibitory concentration 50; kidneys; nuclear magnetic resonance spectroscopy; triterpenoids
Abstract:
... Four new lanostane triterpenes together with twenty-two known lanostane triterpenes were isolated from the epidermis of Poria cocos. The chemical structures of all compounds were determined mainly by 1D and 2D-NMR spectrometry. Three of the new compounds (5, 10 and 24) were evaluated for cytotoxic activities against human gastric carcinoma MGC-803, human hepatocellular carcinoma HepG2, and African ...
DOI:
10.1016/j.phytol.2017.09.018

18. Meroterpenoids from the fruiting bodies of higher fungus Ganoderma resinaceum

Author:
Xianqiang Chen; Lingxiao Chen; Shaoping Li; Jing Zhao
Source:
Phytochemistry letters 2017 v.22 pp. 214-218
ISSN:
1874-3900
Subject:
Ganoderma; fruiting bodies; fungi; high performance liquid chromatography; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Phytochemical investigation on the fruiting bodies of Ganoderma resinaceum led to the isolation of five new meroterpenoids, namely ganoresinains A–E (1–5), and four known analogues (6–9). The new compounds were identified by extensive analyses of spectroscopic data (NMR, MS, UV, and IR) and comparison with the literature data. Compound 1 and 6 were isolated as enantiomeric mixture, which were sepa ...
DOI:
10.1016/j.phytol.2017.10.015

19. New cytotoxic dihydrochalcone and steroidal saponins from the aerial parts of Sansevieria cylindrica Bojer ex Hook

Author:
Mona A. Raslan; Farouk R. Melek; Ataa A. Said; Abdelsamed I. Elshamy; Akemi Umeyama; Marwa M. Mounier
Source:
Phytochemistry letters 2017 v.22 pp. 39-43
ISSN:
1874-3900
Subject:
Sansevieria; aerial parts; anticarcinogenic activity; cytotoxicity; humans; neoplasm cells; nuclear magnetic resonance spectroscopy; spectral analysis; steroid saponins
Abstract:
... A new dihydrochalcone, 2‘,4‘-dihydroxy-3‘-methoxy-3,4-methylenedioxy-8-hydroxymethylene dihydrochalcone 1 and two new steroidal saponins, (25S)-ruscogenin-1-O-α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranoside 2, (25S)-ruscogenin-3-O-α-l-rhamnopyranosyl-(1→4)-β-d-glucopyranoside 3, together with three known steroidal saponins (25S)-ruscogenin-3-O-β-d-glucopyranoside 4, (25S)-ruscogenin-1-O-α-l-rhamnopy ...
DOI:
10.1016/j.phytol.2017.08.004

20. New cytotoxic steroidal saponins from Cestrum parqui

Author:
Radwa R. Mosad; Mohamed H. Ali; Magda T. Ibrahim; Hala M. Shaaban; Marwan Emara; Amir E. Wahba
Source:
Phytochemistry letters 2017 v.22 pp. 167-173
ISSN:
1874-3900
Subject:
Cestrum; cytotoxicity; inhibitory concentration 50; leaves; nuclear magnetic resonance spectroscopy; steroid saponins
Abstract:
... Two new steroidal saponins, 25(R)-3β [(O-β-d-glucopyranosyl-(1→3)-β-d-glucopyranosyl-(1→2)-O-[β-d-xylopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→4)-β-d-galactopyranosyl)oxy]-5α, 15β, 22R, 25R-spirostan-3,15-diol (1, named parquispiroside) and 25R-26-[(β-d-glucopyranosyl)Oxy]-(3β [(O-β-d-glucopyranosyl-(1→3)-β-d-glucopyranosyl-(1→2)-O-[β-d-xylopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→4)-β-d-galactopyra ...
DOI:
10.1016/j.phytol.2017.09.022