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Christopher J. Quinn - One of the best experts on this subject based on the ideXlab platform.
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picramniaceae a new family and a recircumscription of Simaroubaceae
Taxon, 1995Co-Authors: Edwino S. Fernando, Christopher J. QuinnAbstract:Comparative accounts of anatomy of the wood (Webber, 1936; Heimsch, 1942) and pericarp (Ferando & Quinn, 1992), pollen morphology (Erdtman, 1952, 1986; Moncada & Machado, 1987) and phytochemistry (Hilditch & Williams, 1964; Silva & Gottlieb, 1987; Simao & al., 1991) have provided evidence of the heterogeneous nature of Simaroubaceae sensu Engler (1931). Despite these, many classification systems (e.g. Cronquist, 1981; Dahlgren, 1989; Takhtajan, 1987; Thorne, 1992a, b), including the more recent generic listings for families by Brummitt (1992) and Greuter & al. (1993), have been reluctant to use a more restricted concept of the family. Although one segregate family, Surianaceae, has been considered distinct by several authors, they have adopted different circumscriptions for it. Our studies of rbcL sequence variation (Fernando & al., 1993; Ferando & al., 1995) have clearly demonstrated the polyphyly of Simaroubaceae, and have provided further support for the recognition of the families Surianaceae sensu Cronquist, Kirkiaceae and Irvingiaceae earlier segregated from Simaroubaceae, and the establishment of a new family Picramniaceae, for Picramnia (subfamily Picramnioideae) and Alvaradoa (subfamily Alvaradoideae). With the removal of all but one of the subfamilies traditionally included in Simaroubaceae, a recircumscription of the family is also necessary.
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Simaroubaceae, an artificial construct: evidence from rbcL sequence variation
American Journal of Botany, 1995Co-Authors: Edwino S. Fernando, Paul A. Gadek, Christopher J. QuinnAbstract:Phylogenetic analyses of rbcL sequence data of representatives of all subfamilies indicate that Simaroubaceae sensu lato is polyphyletic. It represents at least five separate lineages, only three of which (Simarouboideae, Harrisonia, and Kirkioideae) cluster within a robust sapindalean clade. The family is monophyletic only when comprised of members of the subfamily Simarouboideae plus Leitneriaceae, but excluding Harrisonia. Harrisonia is most closely related to Cneorum and Rutaceae. Kirkioideae is distant from Simaroubaceae sensu stricto, although its affinities remain within Sapindales. The other two lineages show an affinity to taxa at some distance from Sapindales: Irvingia with a group of poorly sampled rosid I taxa comprising in part members of Linales and Malphigiales; Picramnia and Alvaradoa cluster together in an isolated position between the broadly comprised groups of rosid I and rosid II. Support for the affinities suggested here is also evident in nonmolecular data sources: wood anatomy, pericarp structure, pollen, and phytochemistry. The elevation of the picramnioid clade, comprising Picramnia and Alvaradoa, to family rank is signaled, and the recognition of Kirkiaceae and Irvingiaceae is substantiated.
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Pericarp anatomy and systematics of the Simaroubaceae sensu lato
Australian Journal of Botany, 1992Co-Authors: Edwino S. Fernando, Christopher J. QuinnAbstract:Descriptions are given of the anatomy of the pericarp in representatives of 28 genera of the Simaroubaceae sensu lato, including Stylobasium, as well as the ontogeny of the endocarp in 9 of them. There is marked heterogeneity in the family in both pericarp structure and endocarp ontogeny. Eight different endocarp types are recognised, the distribution of which shows considerable correlation with the subfamilial classification of Engler. This study provides further evidence that the family in the broad sense is an artificial assemblage. Endocarp structure provides support for the inclusion of both Recchia and Stylobasium in the Surianoideae. Guilfoylia has no recognisable endocarp; the occurrence of periclinal divisions within the inner protoderm of young pericarps suggests that this is a derived condition. The inclusion of Allantospermum and Nothospondias within the Irvingioideae and Simarouboideae respectively is not supported by their pericarp structures.
Hajime Ohigashi - One of the best experts on this subject based on the ideXlab platform.
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in vitro anti tumor promoting and anti parasitic activities of the quassinoids from eurycoma longifolia a medicinal plant in southeast asia
Journal of Ethnopharmacology, 2002Co-Authors: Suratwadee Jiwajinda, Akira Murakami, Vilai Santisopasri, Masanori Kawanaka, Hiromu Kawanaka, M Gasquet, Riad Eilas, G Balansard, Hajime OhigashiAbstract:Some quassinoids (1-6) isolated previously as plant growth inhibitors from the leaves of Eurycoma longifolia Jack. (Simaroubaceae) were subjected to in vitro tests on anti-tumor promoting, antischistosomal and plasmodicidal activities. The most active compound for inhibition of tumor promoter-induced Epstein-Barr virus activation (anti-tumor promotion) was 14,15beta-dihydroxyklaineanone (5, IC(50) = 5 microM). Longilactone (1) gave significant antischistosomal effect at a concentration of 200 microg/ml. 11-Dehydroklaineanone (3) and 15beta-O-acetyl-14-hydroxyklaineanone (6) showed potent plasmodicidal activity (IC(50) = 2 microg/ml). Thus it was suggested that E. longifolia possesses high medicinal values due to the occurrence of a variety of quassinoids.
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Quassinoids from Eurycoma longifolia as plant growth inhibitors
Phytochemistry, 2001Co-Authors: Suratwadee Jiwajinda, Akira Murakami, Vilai Santisopasri, Nobuhiro Hirai, Hajime OhigashiAbstract:Seven quassinoids including a new 12-epi-11-dehydroklaineanone were isolated from the leaves of Eurycoma longifolia (Simaroubaceae) as plant growth inhibitors or related compounds. The strongest activity was found in 14,15β-dihydroxyklaineanone.
Yves Salomon Makong - One of the best experts on this subject based on the ideXlab platform.
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bruceadysentoside a a new pregnane glycoside and others secondary metabolites with cytotoxic activity from brucea antidysenterica j f mill Simaroubaceae
Natural Product Research, 2021Co-Authors: Yves Salomon Makong, Ghislain W Fotso, Gervais Happi Mouthe, Bruno Ndjakou Lenta, Robert C Rennert, Norbert Sewald, Norbert Arnold, Jean Duplex Wansi, Bonaventure T NgadjuiAbstract:The chemical investigation of the root barks leaves and stem barks of Brucea antidysenterica J. F. Mill. (Simaroubaceae) led to the isolation of a new pregnane glycoside, named Bruceadysentoside A ...
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cytotoxic stilbenes and canthinone alkaloids from brucea antidysenterica Simaroubaceae
Molecules, 2019Co-Authors: Yves Salomon Makong, Norbert Sewald, Jean Duplex Wansi, Gervais Mouthe Happi, Judith Liliane Djouaka Bavoua, Lutfun Nahar, Alain Francois Kamdem Waffo, Claire Martin, Satyajit D SarkerAbstract:A phytochemical study of the root and bark of Brucea antidysenterica J. F. Mill. (Simaroubaceae) afforded three new compounds, including a stilbene glycoside bruceanoside A (1), and two canthinone alkaloids bruceacanthinones A (3) and B (4), along with ten known secondary metabolites, rhaponticin (2), 1,11-dimethoxycanthin-6-one (5), canthin-6-one (6), 1-methoxycanthin-6-one (7), 2-methoxycanthin-6-one (8), 2-hydroxy-1,11-dimethoxycanthin-6-one (9), β-carboline-1-propionic acid (10), cleomiscosin C (11), cleomiscosin A (12), and hydnocarpin (13). The structures of all the compounds were determined using spectrometric and spectroscopic methods including 1D and 2D NMR, and HRSEIMS. The identities of the known compounds were further confirmed by comparison of their data with those reported in the literature. The root and bark methanolic extracts, the dichloromethane and ethyl acetate soluble fractions, and the isolated compounds (3–13), were assessed for their cytotoxicity against the cancer cell lines A-549, MCF-7, and PC-3. The results suggested that compounds in the extracts might possess a synergic action in their cytotoxicity.
Jose Rubens Pirani - One of the best experts on this subject based on the ideXlab platform.
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an updated account of Simaroubaceae with emphasis on american taxa
Brazilian Journal of Botany, 2021Co-Authors: Jose Rubens Pirani, Lucas C Majure, Marcelo Fernando DevecchiAbstract:Simaroubaceae are among the families whose circumscription radically changed over time, because phylogenetic analyses undertaken since 1995 demonstrated it was a polyphyletic group in its traditional delimitation. Currently, Simaroubaceae sensu stricto are a mostly pantropical, highly supported monophyletic group composed of 22 genera and approximately 120 species. Growing knowledge about members of the family has allowed several advances over the last couple of decades. The primary center of diversity for Simaroubaceae is in tropical America, and new contributions have been recently made regarding members of the family in the region, including descriptions of several new taxa. Hence, we undertook an updated overview of general information available for the group, with focus on American taxa of Simaroubaceae, and highlighting numerous data published after the 2011 monograph. Besides aiming to contribute to a better knowledge of a family with past controversial limits, we emphasize research topics in which the current scarcity of data demands further investigation.
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chromosome numbers in homalolepis turcz and their significance in Simaroubaceae evolution
Brazilian Journal of Botany, 2021Co-Authors: Maria V Romerodacruz, Rafael Guimaraes, Jose Rubens Pirani, Marcelo Fernando Devecchi, Eliana Regina FornimartinsAbstract:Homalolepis was described by Turczaninow in 1848 and reestablished by Devecchi et al. in 2018, enclosing mostly the extra-Amazonian species previously included in two sections of Simaba Aubl.. We performed the first cytogenetic analysis in Homalolepis and, by surveying chromosome numbers of other Simaroubaceae representatives, reconstructed the evolution of chromosome numbers in the family, using ChromEvol software. The four Homalolepis species showed 2n = 32 and two or four CMA+ bands. In situ hybridization showed a diverse distribution of ribosomal DNA sites (5S and 18S), positioned on the same chromosome pair in H. floribunda (A. St.-Hil.) Devecchi & Pirani or on different chromosome pairs in H. arenaria (Devecchi & Pirani) Devecchi & Pirani. The basic chromosome number here indicated for Simaroubaceae is x = 12, from which chromosome numbers of other genera were derived by ascending dysploidy, with polyploidy occurring in Ailanthus Desf. only. Homalolepis presents x = 16, derived by ascending disploidy.
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flora do espirito santo Simaroubaceae
Rodriguésia, 2020Co-Authors: Marcelo Fernando Devecchi, Jose Rubens PiraniAbstract:Resumo Apresentamos o tratamento taxonomico das especies de Simaroubaceae ocorrentes no Espirito Santo, Brasil. Este estudo e resultado da combinacao de trabalho de campo e analise de especimes depositados em herbarios que abrigam colecoes relevantes do Espirito Santo. A familia esta representada no estado por seis especies pertencentes a tres generos: Homalolepis (4 spp.), Picrasma (1 sp.) e Simarouba (1 sp.). Todas as especies sao arboreas florestais e foram registradas em fisionomias de floresta ombrofila densa submontana, floresta de tabuleiro e floresta de restinga. O tratamento inclui chaves de identificacao, descricoes morfologicas detalhadas, ilustracoes, fotografias, e comentarios sobre taxonomia, distribuicao, habitat e fenologia de cada especie.
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taxonomic revision of the neotropical genus homalolepis turcz Simaroubaceae
Phytotaxa, 2018Co-Authors: Marcelo Fernando Devecchi, William Wayt Thomas, Jose Rubens PiraniAbstract:Homalolepis Turcz. is a neotropical, monophyletic genus, recently reestablished as a segregate from Simaba Aubl., based on molecular and morphological grounds. As here defined, Homalolepis comprises 28 species, mainly distributed in tropical South America, with one species extending to Central America. Most species occur within the Cerrado and Atlantic forest domains in Brazil and only a few species occur in the Caatinga and Amazonian domains or in other countries. Most of the species are narrow endemics, and two ( H. suaveolens and H. maiana ) are presumably extinct. The present revision treatment is primarily based on the examination of about 1300 specimens from 58 herbaria. Natural populations of 20 species were also studied. Extensive field work improved the representativeness of collections of several species which were poorly known until now, and it was critical for achieving accurate species circumscriptions, especially for some species complexes present in the genus. Twenty-three species were transferred from Simaba to Homalolepis , seven names lectotypified, an epitype designated, seven new species described, and one reestablished. The infrageneric classification is reevaluated, with an updated morphological circumscription of two traditional sections. This revision provides the taxonomic data on nomenclatural types, including synonymies, morphological descriptions, etymology of species names, common names and uses, illustrations and photos, and brief discussions on phenology, taxonomy and nomenclature. Distribution maps are provided for each species, along with biogeographical and ecological comments.
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check list de picramniales e sapindales exceto sapindaceae do estado de mato grosso do sul
Iheringia Serie Botanica, 2018Co-Authors: Jose Rubens Pirani, Cintia Luiza Da SilvaluzAbstract:As listas de especies de Picramniales e Sapindales (exceto Sapindaceae ) ocorrentes no Mato Grosso do Sul foram compiladas com base em monografias, floras e revisoes taxonomicas publicadas, e dados da Lista de Especies do Brasil e dos acervos de varios herbarios. Os seguintes numeros de especies foram reportados em cada familia: Picramniaceae (duas spp.), Anacardiaceae (15 spp.); Burseraceae (quatro spp.), Meliaceae (15 spp.), Rutaceae (22 spp.), Simaroubaceae (cinco spp.). Cada taxon e acompanhado de citacao de um voucher e dos dominios e habitats em que ocorre no Mato Grosso do Sul.
Eric Deharo - One of the best experts on this subject based on the ideXlab platform.
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simalikalactone d is responsible for the antimalarial properties of an amazonian traditional remedy made with quassia amara l Simaroubaceae
Journal of Ethnopharmacology, 2006Co-Authors: Stephane Bertani, Emeline Houel, Valerie Jullian, Lionel Chevolot, Giovanni Garavito, Genevieve Bourdy, Didier Stien, Eric DeharoAbstract:Abstract French Guiana (North-East Amazonia) records high malaria incidence rates. The traditional antimalarial remedy most widespread there is a simple tea made out from Quassia amara L. leaves (Simaroubaceae). This herbal tea displays an excellent antimalarial activity both in vitro and in vivo. A known quassinoid, simalikalactone D (SkD), was identified as the active compound, with an IC 50 value of 10 nM against FcB1 Plasmodium falciparum chloroquine resistant strain in vitro. Lastly, it inhibits 50% of Plasmodium yoelii yoelii rodent malaria parasite at 3.7 mg/kg/day in vivo by oral route. These findings confirm the traditional use of this herbal tea.
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ethnopharmacological communication simalikalactone d is responsible for the antimalarial properties of an amazonian traditional remedy made with quassia amara l Simaroubaceae
2006Co-Authors: Stephane Bertani, Valerie Jullian, Lionel Chevolot, Giovanni Garavito, Genevieve Bourdy, Didier Stien, Eric DeharoAbstract:French Guiana (North-East Amazonia) records high malaria incidence rates. The traditional antimalarial remedy most widespread there is a simple tea made out from Quassia amara L. leaves (Simaroubaceae). This herbal tea displays an excellent antimalarial activity both in vitro and in vivo. A known quassinoid, simalikalactone D (SkD), was identified as the active compound, with an IC50 value of 10 nM against FcB1 Plasmodium falciparum chloroquine resistant strain in vitro. Lastly, it inhibits 50% of Plasmodium yoelii yoelii rodent malaria parasite at 3.7 mg/kg/day in vivo by oral route. These findings confirm the traditional use of this herbal tea. © 2006 Elsevier Ireland Ltd. All rights reserved.
