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Zhang C, Li Y, Chu Z, Yuan S, Qiao Y, Zhang J, Li L, Zhang Y, Tian R, Tang Y, Lou H. Rearranged 19-nor-7,8-seco-labdane diterpenoids and Diels−Alder cycloadducts from the Chinese liverwort Pallavicinia ambigua: Structural elucidation, photoinduced rearrangement, and cytotoxic activity. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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2
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Sun S, Hu S, Zhang B, Sun X, Xu N. Allelopathic effects and potential allelochemical of Sargassum fusiforme on red tide microalgae Heterosigma akashiwo. MARINE POLLUTION BULLETIN 2021; 170:112673. [PMID: 34225191 DOI: 10.1016/j.marpolbul.2021.112673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
In this study, we aim to explore the allelochemicals of marine brown algae Sargassum fusiforme and the mechanism of allelopathy effect on Heterosigma akashiwo. Six potential allelopathic substances, palmitic acid, arachidonic acid, α-linolenic acid (ALA), fucosterol, 24-hydroperoxy-24-vinylcholesterol, and saringosterowere, were isolated and identified from S. fusiforme by column chromatography, NMR, TOF-MS and GC-MS analyses. The ALA and 24-hydroperoxy-24-vinylcholesterol showed remarkable inhibitory activities on H. akashiwo growth. Besides, the allelopathic mechanism between the ALA and H. akashiwo was preliminarily investigated. The results indicated that the activities of SOD and POD of H. akashiwo gradually decreased under high ALA concentration. The reduction of photosynthetic pigments and chlorophyll fluorescence parameters, as well as apparent electron transport rate in H. akashiwo cells, aggravated gradually with increasing the concentration of the ALA. In summary, this study revealed the responses of morphology and physiology of H. akashiwo when exposed by ALA, while revealing the potential of macroalgae in red tide control.
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Affiliation(s)
- Siqi Sun
- School of Economics and Management, Zhejiang Ocean University, Zhoushan 316022, China; Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Shanshan Hu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Bo Zhang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Xue Sun
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Nianjun Xu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China.
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Gardner DR, Cook D, Larsen SW, Stonecipher CA, Johnson R. Diterpenoids from Gutierrezia sarothrae and G. microcephala: Chemical diversity, chemophenetics and implications to toxicity in grazing livestock. PHYTOCHEMISTRY 2020; 178:112465. [PMID: 32888672 DOI: 10.1016/j.phytochem.2020.112465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Broom snakeweed (Gutierrezia sarothrae) and threadleaf snakeweed (G. microcephala) are suffrutescent plants found in many parts of western US rangelands and are possibly toxic to grazing livestock. The toxic components are not known, but it has been suggested that the diterpene acids may be both toxic and abortifacient. One hundred sixty-two samples of snakeweed were collected from 55 locations in Colorado, Oklahoma, New Mexico, Texas, Wyoming and Utah and were taxonomically classified. Samples were analyzed by GC-MS in a chemophenetic analysis and grouped into individual chemotypes based on diterpene acid content. The GC-MS profiles were found to be diverse showing at least eight different chemotypes. From each of the chemotypes the major diterpene acids were isolated and characterized by IR, MS and NMR spectroscopy. Twenty-one diterpenoids were identified and found to be a mix of furano, lactone, di-acid and esters of labdane, ent-labdane and chlerodane acids and alcohols. Only four of the 21 compounds isolated had been previously reported as occurring in G. sarathorea or G. microcephala, while another eight compounds were previously reported from other Gutierrezia or related species. Nine of the isolated diterpenoids have not been previously reported and their structure elucidation is reported.
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Affiliation(s)
- Dale R Gardner
- USDA-ARS Poisonous Plant Research Laboratory, 1150 E. 1400 N., Logan, UT, 84341, USA.
| | - Daniel Cook
- USDA-ARS Poisonous Plant Research Laboratory, 1150 E. 1400 N., Logan, UT, 84341, USA
| | - Scott W Larsen
- USDA-ARS Poisonous Plant Research Laboratory, 1150 E. 1400 N., Logan, UT, 84341, USA
| | - Clinton A Stonecipher
- USDA-ARS Poisonous Plant Research Laboratory, 1150 E. 1400 N., Logan, UT, 84341, USA
| | - Robert Johnson
- Brigham Young University, Stanley L. Welsh Herbarium, Provo, UT, USA
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Wei W, Li Y, Li H, Ma K, Wang L, Gao K. Phytotoxic Diterpenoids from Plants and Microorganisms. Chem Biodivers 2019; 16:e1900398. [PMID: 31456316 DOI: 10.1002/cbdv.201900398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 08/27/2019] [Indexed: 11/09/2022]
Abstract
Phytotoxic natural products with either unique or various structures are one of the most abundant sources for the discovery of potential allelochemicals, natural herbicides, and plant growth regulators. Phytotoxic diterpenoids, a relatively large class of natural products, play an important role in the plant-plant or plant-microorganism interactions. This article argues that the phytotoxic diterpenoids isolated from the plants and microorganisms can either inhibit the seed germination and the growth of plant seedlings or lead to some disease symptoms on the tested plant tissues and plant seedlings.
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Affiliation(s)
- Wenjun Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Ya Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Hangying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Kailiang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Liudi Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
| | - Kun Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, P. R. China
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Grande M, Fernández-Mateos A, Blanco JJ, Herrador MM, del Moral JFQ, Arteaga P, Arteaga JF, Barrero AF. Diversity on Diterpene Composition in Two Populations of Parentucellia viscosa: Labdane and Clerodane Chemotypes. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The terpenic compositions of two populations of Parentucellia viscosa growing in the west-central and southern parts of the Iberian Peninsula have been studied. Seven labdadienes were identified from the former population, whereas the main terpenic constituents of the latter were ent-clerodadienes. The biosynthetic significance of this dramatic change in the diterpenic distribution of both populations is discussed.
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Affiliation(s)
- Manuel Grande
- Department of Organic Chemistry, University of Salamanca, Plaza de los Caídos, 37008 Salamanca, Spain
| | - Alfonso Fernández-Mateos
- Department of Organic Chemistry, University of Salamanca, Plaza de los Caídos, 37008 Salamanca, Spain
| | - Juan José Blanco
- Department of Organic Chemistry, University of Salamanca, Plaza de los Caídos, 37008 Salamanca, Spain
| | - M. Mar Herrador
- Department of Organic Chemistry, Institute of Biotechnology, University of Granada, Avda. Fuentenueva, 18071 Granada, Spain
| | - José F. Quílez del Moral
- Department of Organic Chemistry, Institute of Biotechnology, University of Granada, Avda. Fuentenueva, 18071 Granada, Spain
| | - Pilar Arteaga
- Department of Organic Chemistry, Institute of Biotechnology, University of Granada, Avda. Fuentenueva, 18071 Granada, Spain
| | | | - Alejandro F. Barrero
- Department of Organic Chemistry, Institute of Biotechnology, University of Granada, Avda. Fuentenueva, 18071 Granada, Spain
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Zhou J, Zhang J, Li R, Liu J, Fan P, Li Y, Ji M, Dong Y, Yuan H, Lou H. Hapmnioides A-C, Rearranged Labdane-Type Diterpenoids from the Chinese Liverwort Haplomitrium mnioides. Org Lett 2016; 18:4274-6. [PMID: 27513610 DOI: 10.1021/acs.orglett.6b01854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many exceptional labdane-type diterpenoids have been exclusively found in liverworts, which serve as taxonomic molecules or play important ecological roles in interactions among organisms. Three unprecedented labdane-type diterpenoids hapmnioides A (1), B (2), and C (3) formed through cascade rearrangement from the Chinese liverwort Haplomitrium mnioides are reported. Their structures were established by comprehensive spectroscopic analysis coupled with single-crystal X-ray diffraction, and their anti-inflammatory activities were also preliminarily tested.
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Affiliation(s)
- Jinchuan Zhou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Ruijuan Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Jun Liu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Peihong Fan
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Mei Ji
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Yiwen Dong
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Huiqing Yuan
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
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Zidorn C. Secondary metabolites of seagrasses (Alismatales and Potamogetonales; Alismatidae): Chemical diversity, bioactivity, and ecological function. PHYTOCHEMISTRY 2016; 124:5-28. [PMID: 26880288 DOI: 10.1016/j.phytochem.2016.02.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 12/30/2015] [Accepted: 02/07/2016] [Indexed: 05/06/2023]
Abstract
Seagrasses are the only higher plants living in fully marine environments; they play a significant role in coastal ecosystems. Seagrasses inhabit the coastal shelves of all continents except Antarctica and can grow in depths of up to 90 m. Because of their eminent ecological importance, innumerous studies have been dedicated to seagrasses and their ecology. However, the phytochemistry has not been equally well investigated yet and many of the existing studies in chemical ecology are only investigating the chemistry at the level of compound classes, e.g. phenolics, and not at the level of chemically defined metabolites. In the present review, the existing literature on secondary metabolites of seagrasses, their known source seagrasses, their bioactivity, and ecological function are compiled and critically assessed. Moreover, research gaps are highlighted and avenues for future research are discussed. Currently, a total of 154 chemically defined natural products have been reported from the about 70 seagrass species known worldwide. Compounds reported include simple phenols derivatives (four compounds), phenylmethane derivatives (14 compounds), phenylethane derivatives (four compounds), phenylpropane derivatives including their esters and dimers (20 compounds), chalkones (four compounds), flavonoids including catechins (57 compounds), phenylheptanoids (four compounds), one monoterpene derivative, one sesquiterpene, diterpenoids (13 compounds), steroids (31 compounds), and one alkaloid. Most of the existing bioactivity studies of seagrass metabolites and extracts have been directed to potential cytotoxic, antimicrobial, or antimacrofouling activity. Antimicrobial studies have been performed towards panels of both human pathogens and ecologically relevant pathogens. In the antimacrofouling studies, investigations of the potential of zosteric acid from the genus Zostera are the most numerous and have yielded so far the most interesting results. Studies on the chemical ecology of seagrasses often have been focused on variation in phenolic compounds and include but are not limited to studies on variation due to abiotic factors, seasonal variation, variation in response to grazing by fish or sea urchins, or following microbial attack.
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Affiliation(s)
- Christian Zidorn
- Institute of Pharmacy, Department of Pharmacognosy, University of Innsbruck, CCB, Innrain 80-82, Innsbruck, Austria.
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8
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Islam AKMM, Ohno O, Suenaga K, Kato-Noguchi H. Two novel phytotoxic substances from Leucas aspera. JOURNAL OF PLANT PHYSIOLOGY 2014; 171:877-883. [PMID: 24913044 DOI: 10.1016/j.jplph.2014.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/19/2014] [Accepted: 03/06/2014] [Indexed: 06/03/2023]
Abstract
Leucas aspera (Lamiaceae), an aromatic herbaceous plant, is well known for many medicinal properties and a number of bioactive compounds against animal cells have been isolated. However, phytotoxic substances from L. aspera have not yet been documented in the literature. Therefore, current research was conducted to explore the phytotoxic properties and substances in L. aspera. Aqueous methanol extracts of L. aspera inhibited the germination and growth of garden cress (Lepidum sativum) and barnyard grass (Echinochloa crus-galli), and the inhibitory activities were concentration dependent. These results suggest that the plant may have phytotoxic substances. The extracts were then purified by several chromatographic runs. The final purification was achieved by reversed-phase HPLC to give an equilibrium (or inseparable) 3:2 mixture of two labdane type diterpenes (compounds 1 and 2). These compounds were characterized as (rel 5S,6R,8R,9R,10S,13S,15S,16R)-6-acetoxy-9,13;15,16-diepoxy-15-hydroxy-16-methoxylabdane (1) and (rel 5S,6R,8R,9R,10S,13S,15R,16R)-6-acetoxy-9,13;15,16-diepoxy-15-hydroxy-16-methoxylabdane (2) by spectroscopic analyses. A mixture of the two compounds inhibits the germination and seedling growth of garden cress and barnyard grass at concentrations greater than 30 and 3 μM, respectively. The concentration required for 50% growth inhibition (I50) of the test species ranges from 31 to 80 μM, which suggests that the mixture of these compounds, are responsible for the phytotoxic activity of L. aspera plant extract.
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Affiliation(s)
- A K M Mominul Islam
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki, Kagawa 761-0795, Japan.
| | - Osamu Ohno
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku, Yokohama 223-8522, Japan
| | - Kiyotake Suenaga
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku, Yokohama 223-8522, Japan
| | - Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, 2393 Ikenobe, Miki, Kagawa 761-0795, Japan
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Iyapparaj P, Revathi P, Ramasubburayan R, Prakash S, Palavesam A, Immanuel G, Anantharaman P, Sautreau A, Hellio C. Antifouling and toxic properties of the bioactive metabolites from the seagrasses Syringodium isoetifolium and Cymodocea serrulata. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 103:54-60. [PMID: 24576890 DOI: 10.1016/j.ecoenv.2014.02.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 02/06/2014] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
The present study documents the antifouling and toxic properties of seagrasses Syringodium isoetifolium and Cymodocea serrulata. For that, the seagrasses S. isoetifolium and C. serrulata were extracted individually using organic solvents viz. dichloromethane, acetone and methanol. Amongst the extracts, the maximum antimicrofouling and antimacrofouling activities were exhibited by methanol extracts of both the seagrasses. The Minimal Inhibitory Concentration (MIC) of methanolic extracts of seagrasses was ranged from 1.0 to 10µg/ml against test biofilm bacteria and microalgal strains. Similarly, 100% fouling inhibition of limpet Patella vulgata was found at 6.0mg/ml of methanolic extracts of seagrasses. The mussel Perna indica showed 50% of byssal production and attachment inhibition at 21.51±2.03, 17.82±1.07µg/ml and the anticrustaecean activity for 50% mortality of Artemia salina was recorded at 732.14±9.21 and 394.16±5.16µg/ml respectively for methanolic extracts of S. isoetifolium and C. serrulata. The minimal inhibitory and higher lethal concentrations of active methanol extracts shows it׳s less toxic nature. Based on the prolific results, methanol extracts of S. isoetifolium and C. serrulata were subjected to purification using silica gel column and thin layer chromatography. Then the active compounds of the bioassay guided fractions were partially characterized using gas chromatography coupled with mass spectroscopy (GC-MS) and keyed out that fatty acids (C16 to C24) were the major components which responsible for the antifouling properties of the candidate seagrasses.
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Affiliation(s)
- Palanisamy Iyapparaj
- CAS in Marine Biology, Annamalai University, Parangipettai 608502, Tamilnadu, India.
| | - Peranandam Revathi
- Department of Environmental Biotechnology, Bharathidasan University, Trichy, Tamilnadu, India
| | | | - Santhiyagu Prakash
- Research Institute, SRM University, Kattankulathur 603203, Tamilnadu, India
| | | | - Grasian Immanuel
- CMST, Manonmaniam Sundaranar University, Rajakkamangalam 629502, Tamilnadu, India
| | - Perumal Anantharaman
- CAS in Marine Biology, Annamalai University, Parangipettai 608502, Tamilnadu, India
| | - Asmita Sautreau
- School of Biological Sciences, University of Portsmouth, Portsmouth PO1 2DY, UK
| | - Claire Hellio
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth PO1 2DT, UK
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Chemical Ecology of Marine Angiosperms: Opportunities at the Interface of Marine and Terrestrial Systems. J Chem Ecol 2013; 39:687-711. [DOI: 10.1007/s10886-013-0297-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/27/2013] [Accepted: 04/30/2013] [Indexed: 10/26/2022]
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Paolini J, Falchi A, Quilichini Y, Desjobert JM, Cian MCD, Varesi L, Costa J. Morphological, chemical and genetic differentiation of two subspecies of Cistus creticus L. (C. creticus subsp. eriocephalus and C. creticus subsp. corsicus). PHYTOCHEMISTRY 2009; 70:1146-1160. [PMID: 19660770 DOI: 10.1016/j.phytochem.2009.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 06/15/2009] [Accepted: 06/16/2009] [Indexed: 05/28/2023]
Abstract
Cistus creticus L., an aromatic species from the Mediterranean area, contains various diterpenes bearing the labdane skeleton. The production of essential oil from this species has potential economic value, but so far, it has not been optimized. In order to contribute to a better knowledge of this species and to its differentiation, the morphological characters, volatile chemical composition and genetic data of two subspecies (C. creticus subsp. eriocephalus and C. creticus subsp. corsicus) were investigated. The leaf trichomes were studied using scanning electron microscopy. The chemical composition of Corsican essential oil (C. creticus subsp. corsicus) has been reported using GC, GC/MS and 13C NMR; the main constituents were oxygenated labdane diterpenes (33.9%) such as 13-epi-manoyl oxide (18.5%). Using plant material (54 samples) collected from 18 geographically distinct areas of the islands of Corsica and Sardinia, the basis of variation in the headspace solid-phase microextraction volatile fraction and an inter-simple sequence repeat genetic analysis were also examined. It was shown that the two subspecies of C. creticus differed in morphology, essential oil production, volatile fraction composition and genetic data.
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Affiliation(s)
- Julien Paolini
- UMR-CNRS 6134 SPE, Université de Corse, Laboratoire Chimie des Produits Naturels, 20250 Corti, France.
| | | | - Yann Quilichini
- UMR-CNRS 6134 SPE, Université de Corse, Service d'Etude et de Recherche en Microscopie Electronique, 20250 Corti, France
| | - Jean-Marie Desjobert
- UMR-CNRS 6134 SPE, Université de Corse, Laboratoire Chimie des Produits Naturels, 20250 Corti, France
| | - Marie-Cecile De Cian
- UMR-CNRS 6134 SPE, Université de Corse, Laboratoire de Génétique Moléculaire, 20250 Corti, France
| | - Laurent Varesi
- UMR-CNRS 6134 SPE, Université de Corse, Laboratoire de Génétique Moléculaire, 20250 Corti, France
| | - Jean Costa
- UMR-CNRS 6134 SPE, Université de Corse, Laboratoire Chimie des Produits Naturels, 20250 Corti, France
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13
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Yang Q, Ye G, Feng JQ, Zhao WM. New Labdane-Type Diterpenoids fromAmentotaxus argotaenia. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Weihong WANG, Min JI, Miaomiao WANG, Nan ZHANG, Yunping TANG, Zhiyang ZHANG. Allelopathy of Ruppia Maritima on Chlorella Vulgaris in reclaimed wastewater. ACTA ACUST UNITED AC 2007. [DOI: 10.18307/2007.0314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Matsingou C, Hatziantoniou S, Georgopoulos A, Dimas K, Terzis A, Demetzos C. Labdane-type diterpenes: thermal effects on phospholipid bilayers, incorporation into liposomes and biological activity. Chem Phys Lipids 2005; 138:1-11. [PMID: 16182267 DOI: 10.1016/j.chemphyslip.2005.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2004] [Revised: 04/19/2005] [Accepted: 07/20/2005] [Indexed: 10/25/2022]
Abstract
Labd-13(E)-ene-8alpha,15-diol (1) and its derivative labd-13(E)-ene-8alpha-ol-15-yl-acetate (2) are water insoluble biological active molecules and their structures were elucidated using NMR and X-ray techniques. Differential scanning calorimetry (DSC) was applied to study the thermal effects of 1 and 2 on DPPC bilayers. Liposomes composed of egg phosphatidylcholine/dipalmytoylphosphatidylglycerol (9:0.1 molar ratio) were prepared by the thin-film hydration method and were used for incorporating 1 and 2. Free and liposomal 1 and 2 were tested for their activity against human cancer cell lines using the sulphorhodamine B assay. The effect of 1 and 2 on DPPC bilayers caused abolition of the pre-transition temperature, lowering of the main phase transition and reduction of the transition enthalpy only in the presence of cholesterol. The liposomes that have been designed and developed offer high incorporation efficiency; 62.4% (0.369 drug/lipid molar ratio) and 99.7% (0.661 drug/lipid molar ratio) for 1 and 2, respectively. Liposomal 2 showed growth-inhibiting activity against the majority of the tested cell lines.
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Affiliation(s)
- Christina Matsingou
- Department of Pharmaceutical Technology, School of Pharmacy, Panepistimiopolis, Zografou 15771, University of Athens, Athens, Greece
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Waridel P, Wolfender JL, Lachavanne JB, Hostettmann K. Identification of the polar constituents of Potamogeton species by HPLC-UV with post-column derivatization, HPLC-MSn and HPLC-NMR, and isolation of a new ent-labdane diglycoside. PHYTOCHEMISTRY 2004; 65:2401-2410. [PMID: 15381014 DOI: 10.1016/j.phytochem.2004.06.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2004] [Revised: 06/08/2004] [Indexed: 05/24/2023]
Abstract
The polar extracts of Potamogeton pectinatus, P. lucens, P. perfoliatus and P. crispus (Potamogetonaceae) were analyzed by HPLC-UV-MS and their chromatographic profiles were very similar. The polar constituents of P. pectinatus were more exhaustively investigated by HPLC-UV with post-column derivatization, HPLC-MS(n) and HPLC-NMR, which allowed the on-line identification of various known flavones (dereplication). One of these compounds, luteolin 3'-O-glucoside, has never been characterized in the Potamogeton genus. The HPLC-UV-MS and HPLC-NMR analyses revealed also the presence of ent-labdane diterpene glycosides in the polar extracts of P. pectinatus and P. lucens and led to the isolation of a new ent-labdane diglycoside from P. pectinatus, beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl-15,16-epoxy-12-oxo-8(17),13(16),14-ent-labdatrien-19-oate.
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Affiliation(s)
- Patrice Waridel
- Laboratoire de Pharmacognosie et Phytochimie, Ecole de Pharmacie Genève-Lausanne, CH-1015 Lausanne, Switzerland
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17
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Waridel P, Wolfender JL, Lachavanne JB, Hostettmann K. ent-Labdane glycosides from the aquatic plant Potamogeton lucens and analytical evaluation of the lipophilic extract constituents of various Potamogeton species. PHYTOCHEMISTRY 2004; 65:945-954. [PMID: 15081300 DOI: 10.1016/j.phytochem.2004.01.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2003] [Revised: 01/15/2004] [Indexed: 05/24/2023]
Abstract
Two new ent-labdane glycosides, one known furano-ent-labdane and a new hydroxylated fatty acid were isolated from the dichloromethane extract of the freshwater aquatic plant Potamogeton lucens. The new compounds were assigned the structures of beta-d-glucopyranosyl-8(17),13-ent-labdadien-16,15-olid-18-oate, 18-beta-d-glucopyranosyloxy-8(17),13-ent-labdadien-16,15-olide and 13(R)-hydroxy-octadeca-(9Z,11E,15Z)-trien-oic acid by spectroscopic means. The algicidal activity of these compounds was tested against Raphidocelis subcapitata. Based on our previous study of Potamogeton pectinatus, other constituents were identified in P. lucens by LC-UV-MS, LC-NMR and GC-MS. The lipophilic extract profiles of both species are presented. Two other species, Potamogeton perfoliatus and P. crispus, were also investigated by analytical comparison of their non-polar extracts. The distribution of ent-labdanes characterized in Potamogeton is summarized.
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Affiliation(s)
- Patrice Waridel
- Institut de Pharmacognosie et Phytochimie, Université de Lausanne, CH-1015 Lausanne, Switzerland
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18
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Waridel P, Wolfender JL, Lachavanne JB, Hostettmann K. ent-Labdane diterpenes from the aquatic plant Potamogeton pectinatus. PHYTOCHEMISTRY 2003; 64:1309-1317. [PMID: 14599530 DOI: 10.1016/j.phytochem.2003.08.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Four new ent-labdane diterpenes were isolated from the freshwater aquatic plant Potamogeton pectinatus, together with two known furano-ent-labdanes. The new compounds were assigned the structures methyl-15,16-epoxy-12(R)-acetoxy- 8(17), 13(16),14-ent-labdatrien-19-oate,15,16-epoxy-12(R)-acetoxy-8(17), 13(16),14-ent-labdatrien-19-oic acid, 8(17),13-ent-labdadien-15 --> 16-lactone-19-oic acid and 16-hydroxy-8(17),13-ent-labdadien-15,16-olid-19-oic acid by spectroscopic means. Some of these labdanes showed a strong algicidal activity against Raphidocelis subcapitata.
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Affiliation(s)
- Patrice Waridel
- Institut de Pharmacognosie et Phytochimie, Université de Lausanne, CH-1015 Lausanne, Switzerland
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19
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Cangiano T, Dellagreca M, Fiorentino A, Isidori M, Monaco P, Zarrelli A. Effect of ent-labdane diterpenes from Potamogetonaceae on Selenastrum capricornutum and other aquatic organisms. J Chem Ecol 2002; 28:1091-102. [PMID: 12184390 DOI: 10.1023/a:1016213630957] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Twenty ent-labdane diterpenes, isolated from the aquatic plants Ruppia maritima and Potamogeton natans, were tested to detect their effects on aquatic organisms from different trophic levels. Toxicity tests were performed on aquatic producers (the alga Selenastrum capricornutum), and consumers including a rotifer (Brachionus calyciflorus), a cladoceran crustacean (Daphnia magna), and two anostracan crustaceans (Thamnocephalusplatyurus and Artemia salina). Furano-ent-labdanes exhibited high toxicity toward all of these organisms. 15,16-Epoxy-12(S)-hydroxy-8(17),13(16),14-ent-labdatrien-20.19-olide had a high toxicity only toward the algae and the rotifers. It was inactive for the crustaceans.
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Affiliation(s)
- Tiziana Cangiano
- Dipartimento di Scienze della Vita, Seconda Università di Napoli, Caserta, Italy
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20
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DellaGreca M, Fiorentino A, Isidori M, Monaco P, Temussi F, Zarrelli A. Antialgal furano-diterpenes from Potamogeton natans L. PHYTOCHEMISTRY 2001; 58:299-304. [PMID: 11551554 DOI: 10.1016/s0031-9422(01)00203-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Six furano-ent-labdanes, 19-acetoxy-15,16-epoxy-8(17),13(16),14-ent-labdatrien-20-al, 15,16-epoxy-12-oxo-8(17),13(16),14-ent-labdatrien-20,19-olide, 12(S)-hydroxy-15,16-epoxy-8(17),13(16),14-ent-labdatrien-20,19-olide, 10alpha,19-dihydroxy-15,16-epoxy-8(17),13(16),14-nor-ent-labdatriene, 19,20-dihydroxy-15,16-epoxy-8(17),13(16),14-ent-labdatriene, 15,16-epoxy-12-oxo-8(17),13(16),14-ent-labdatrien-19,20-olide, were isolated, together with the known potamogetonin, from the aquatic plant Potamogeton natans. Their structures were determined on the basis of their chemical and spectral data. The compounds showed in vitro phytotoxicity against Raphidocelis subcapitata, a microalga used in aquatic tests.
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Affiliation(s)
- M DellaGreca
- Dipartimento di Chimica Organica e Biochimica, Università Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia, I-80126, Napoli, Italy
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21
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Cangiano T, DellaGreca M, Fiorentino A, Isidori M, Monaco P, Zarrelli A. Lactone diterpenes from the aquatic plant Potamogeton natans. PHYTOCHEMISTRY 2001; 56:469-473. [PMID: 11261580 DOI: 10.1016/s0031-9422(00)00387-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Four lactone diterpenes and two related glucosides with a labdane skeleton have been isolated from the aquatic plant Potamogeton natans. The structures of three new compounds were determined as 19-acetoxy-20-oxo-8(17),13-ent-labdadien-15-->16 lactone, 8(17), 13-ent-labdadien-15-->16,19-->20 dilactone and 6'-acetyl-19-glucopyranosyloxy-8(17),13-ent-labdadien-15-->16 lactone, respectively, by means of spectral analysis. Antialgal assays showed inhibitory activity for some compounds.
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Affiliation(s)
- T Cangiano
- Dipartimento di Scienze della Vita, II Università di Napoli, Caserta, Italy
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