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Guido Mathieu - One of the best experts on this subject based on the ideXlab platform.
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Endemic Peperomia (Piperaceae) novelties from eastern Madagascar
Candollea, 2020Co-Authors: Guido MathieuAbstract:Mathieu, G. (2020). Endemic Peperomia (Piperaceae) novelties from eastern Madagascar. Candollea 75: 75–82. In English, English and French-abstracts.Three endemic Peperomia Ruiz & Pav. species (Piperaceae) from the eastern Malagasy rainforests are presented as new to science. They are described, illustrated, compared with presumed closest relatives and their conservation status assessments are provided. Peperomia irrasa G. Mathieu seems to be restricted to the Anjanaharibe massif, while Peperomia robusta G. Mathieu is reported from the National Park of Zahamena to the Loky-Manambato Protected Area (Daraina). Peperomia variilimba G. Mathieu is an apparently common species occurring from the Tsaratanana massif to Analamazaotra. These novelties bring the number of accepted Peperomia species on Madagascar to 42.
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Notes on ‘rabbit tail’ Peperomias (Piperaceae) with description of two new species
Candollea, 2018Co-Authors: Guido MathieuAbstract:Mathieu, G. (2018). Notes on ‘rabbit tail’ Peperomias (Piperaceae) with description of two new species. Candollea 73: 209–215. In English, English abstract. DOI: http://dx.doi.org/10.15553/c2018v732a5‘Rabbit tail’ Peperomia Ruiz & Pavon (Piperaceae) species are peculiar in the ellipsoid or globose shape of their inflorescences. Notes on three species of this group are presented. The taxonomic status of Peperomia clavigera Standl. & Steyerm. is discussed and two new species: Peperomia physostachya G. Mathieu from Ecuador and Peperomia sphaerostachya G. Mathieu from Colombia are described and illustrated.Received: May 9, 2018. Accepted: August 15, 2018. First published online: November 5, 2018
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Lectotypifications of Peperomia species (Piperaceae) from Veracruz, Mexico
Candollea, 2017Co-Authors: Guido Mathieu, Martin W. CallmanderAbstract:Abstract Mathieu, G. & M.W. Callmander (2017). Lectotypifications of Peperomia species (Piperaceae) from Veracruz, Mexico. Candollea 72 : 333–338. In English, English abstract. An upcoming taxonomic treatment accepts 60 species of Peperomia Ruiz & Pavon (Piperaceae) from the state of Veracruz in Mexico. A total of 19 species needed a nomenclatural act. Lectotypes of four species were designated previously and the remaining 15 species are lectotypified here. Each of them is discussed in detail. Ten of these species were described by Casimir de Candolle (1836–1918) and some comments on the G herbaria, housing most of Candolle's types, are provided. Received: June 13, 2017; Accepted: July 4, 2017; First published online: July 20, 2017
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diversity distribution and conservation status of peperomia Piperaceae in the state of veracruz mexico
Tropical Conservation Science, 2017Co-Authors: Daniela Vergararodriguez, Marie-stéphanie Samain, Guido Mathieu, Samaria Armentamontero, Thorsten KromerAbstract:We present an overview of the diversity, distribution, and conservation status of all 60 species of the genus Peperomia (“radiator plants,” Piperaceae), which are currently known from the state of ...
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peperomia Piperaceae novelties from veracruz state mexico
Phytotaxa, 2015Co-Authors: Guido Mathieu, Daniela Vergararodriguez, Thorsten Kromer, Dirk Nikolaus KargerAbstract:The preparation of a taxonomic treatment of the genus Peperomia (Piperaceae) for the ‘Flora of Veracruz’, revealed that three species remained without being described. This finding is a result of the review and study of botanical collections in several Mexican and foreign herbaria, as well as of field work in order to collect living and fertile material, which allowed us to describe and illustrate the species as new to science. Two of these, P. chazaroi and P. vazquezii , appear to be endemic to Veracruz, whereas P. parastriata was also found in the neighboring states Chiapas and Oaxaca. The treatment includes assessments of conservation status considering IUCN Red List criteria.
Marie-stéphanie Samain - One of the best experts on this subject based on the ideXlab platform.
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Traditional Uses of the Family Piperaceae in Oaxaca, Mexico:
Tropical Conservation Science, 2019Co-Authors: Brian Giovanni Martínez-bautista, Marie-stéphanie Samain, Luis Alberto Bernal-ramírez, David Bravo-avilez, José Manuel Ramírez Amezcua, Beatriz Rendón-aguilarAbstract:The ethnobotanical importance of the family Piperaceae is recognized mainly for its medicinal properties. A total of 106 species of two genera of this family (Piper and Peperomia) have been collect...
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diversity distribution and conservation status of peperomia Piperaceae in the state of veracruz mexico
Tropical Conservation Science, 2017Co-Authors: Daniela Vergararodriguez, Marie-stéphanie Samain, Guido Mathieu, Samaria Armentamontero, Thorsten KromerAbstract:We present an overview of the diversity, distribution, and conservation status of all 60 species of the genus Peperomia (“radiator plants,” Piperaceae), which are currently known from the state of ...
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Verhuellia is a segregate lineage in Piperaceae: more evidence from flower, fruit and pollen morphology, anatomy and development.
Annals of Botany, 2010Co-Authors: Marie-stéphanie Samain, Alexander Vrijdaghs, Michael Hesse, Paul Goetghebeur, Francisco Jiménez Rodríguez, Alexandra Stoll, Christoph Neinhuis, Stefan WankeAbstract:†Background and Aims The perianthless Piperales, i.e. Saururaceae and Piperaceae, have simple reduced flowers strikingly different from the other families of the order (e.g. Aristolochiaceae). Recent molecular phylogenies proved Verhuellia to be the first branch in Piperaceae, making it a promising subject to study the detailed structure and development of the flowers. Based on recently collected material, the first detailed study since 1872 was conducted with respect to morphology, anatomy and development of the inflorescence, pollen ultrastructure and fruit anatomy. †Methods Original scanning electron microscopy (SEM), transmission electron microscopy (TEM) and light microscopy (LM) observations on Verhuellia lunaria were compared with those of Piperaceae, Saururaceae and fossils. †Key Results The inflorescence is an indeterminate spike with sessile flowers, each in the axil of a bract, developing in acropetal, helical succession. Flowers consist of two (occasionally three) stamens with basifixed tetrasporangiate anthers and latrorse dehiscence by a longitudinal slit. The gynoecium lacks a style but has 3‐4 stigma branches and a single, basal orthotropous and unitegmic ovule. The fruit is a drupe with large multicellular epidermal protuberances. The pollen is very small, inaperturate and areolate, with hemispherical microechinate exine elements. †Conclusions Despite the superficial similarities with different genera of Piperaceae and Saururaceae, the segregate position of Verhuellia revealed by molecular phylogenetics is supported by morphological, developmental and anatomical data presented here. Unitegmic ovules and inaperturate pollen, which are synapomorphies for the genus Peperomia, are also present in Verhuellia.
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verhuellia revisited unravelling its intricate taxonomic history and a new subfamilial classification of Piperaceae
Taxon, 2008Co-Authors: Marie-stéphanie Samain, Christoph Neinhuis, Stefan Wanke, Guido Mathieu, Paul GoetghebeurAbstract:The small poorly studied genus Verhuellia has usually been included in the genus Peperomia. However, a recent molecular study has revealed that Verhuellia is sister to all Piperaceae and neither part of, nor sister to Peperomia as expected. The genus currently includes three species, and with eight taxa described, has had a complex taxonomic history, including wrong synonymizations. Bence a thorough review of all publications mentioning Verhuellia and a detailed study of the herbarium specimens involved has been undertaken. In this paper we present a survey of the chaotic taxonomy of Verhuellia and clarify all nomenclatural obscurities. Additionally, as a consequence of the novel position of the genus, the traditional division of the family Piperaceae into two subfamilies Peperomioidease and Piperoideae is reconsidered.
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from forgotten taxon to a missing link the position of the genus verhuellia Piperaceae revealed by molecules
Annals of Botany, 2007Co-Authors: Stefan Wanke, Paul Goetghebeur, Christoph Neinhuis, Guido Mathieu, Liesbeth Vanderschaeve, Marie-stéphanie SamainAbstract:† Background and Aims The species-poor and little-studied genus Verhuellia has often been treated as a synonym of the genus Peperomia, downplaying its significance in the relationships and evolutionary aspects in Piperaceae and Piperales. The lack of knowledge concerning Verhuellia is largely due to its restricted distribution, poorly known collection localities, limited availability in herbaria and absence in botanical gardens and lack of material suitable for molecular phylogenetic studies until recently. Because Verhuellia has some of the most reduced flowers in Piperales, the reconstruction of floral evolution which shows strong trends towards reduction in all lineages needs to be revised. † Methods Verhuellia is included in a molecular phylogenetic analysis of Piperales (trnT-trnL-trnF and trnK/matK), based on nearly 6000 aligned characters and more than 1400 potentially parsimony-informative sites which were partly generated for the present study. Character states for stamen and carpel number are mapped on the combined molecular tree to reconstruct the ancestral states. † Key Results The genus Peperomia is generally considered to have the most reduced flowers in Piperales but this study shows that this is only partially true. Verhuellia, with almost equally reduced flowers, is not part of or sister to Peperomia as expected, but is revealed as sister to all other Piperaceae in all analyses, putting character evolution in this family and in the perianthless Piperales in a different light. A robust phylogenetic analysis including all relevant taxa is presented as a framework for inferring patterns and processes of evolution in Piperales and Piperaceae. † Conclusions Verhuellia is a further example of how a molecular phylogenetic study can elucidate the relationships of an unplaced taxon. When more material becomes available, it will be possible to investigate character evolution in Piperales more thoroughly and to answer some evolutionary questions concerning Piperaceae.
Luis E Cuca - One of the best experts on this subject based on the ideXlab platform.
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A new benzoic acid derivative isolated from Piper cf. cumanense Kunth (Piperaceae)
Phytochemistry Letters, 2013Co-Authors: Jorge E. Parra, Wilman A Delgado, Oscar J. Patino, Juliet A. Prieto, Luis E CucaAbstract:Abstract New benzoic acid derivative ( 1 ), together with five known compounds has been isolated from the inflorescences of Piper cf. cumanense Kunth (Piperaceae). The structure was identified on basis of spectroscopic analysis and comparison with literature data. The compound ( 1 ) showed antifungal activity against Fusarium oxysporum f. sp. dianthi and Botrytis cinerea .
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Cumanensic acid, a new chromene isolated from Piper cf. cumanense Kunth. (Piperaceae)
Phytochemistry Letters, 2011Co-Authors: Jorge E. Parra, Wilman A Delgado, Luis E CucaAbstract:A new chromene, cumanensic acid (1), together with eight known compounds have been isolated from the aerial part of Piper cf. cumanense Kunth (Piperaceae). Chromene structure was identified on the basis of spectroscopic analysis and comparison with literature data. The compound showed antifungal activity against Fusarium oxysporum f. sp. dianthi and Botrytis cinerea.
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extractos vegetales utilizados como biocontroladores con enfasis en la familia Piperaceae una revision
Agronomía Colombiana, 2008Co-Authors: Alvaro Celis, Cristina Mendoza, Marco Pachon, Jose Cardona, Wilman A Delgado, Luis E CucaAbstract:El presente trabajo es una recopilacion de casos comprobados de actividad biologica de extractos y sustancias de origen vegetal para el control de arvenses, plagas y enfermedades en el sector agricola. De esta forma, se pone en evidencia que una de las familias con mayor numero de reportes en este tipo de actividad biologica es la Piperaceae, esto las convierte en una de las mas promisorias para la busqueda de extractos o compuestos que tengan aplicaciones en la solucion de problemas fitosanitarios. Debido a la importancia de Piperaceae y en especial del genero Piper , los grupos de investigacion BioGuavio/ AgroUDEC de la Universidad de Cundinamarca y Estudio Quimico y de Actividad Biologica de Rutaceae y Myristicaceae Colombianas de la Universidad Nacional de Colombia con el apoyo de Colciencias, desarrollan un proyecto titulado Bioprospeccion participativa de comunidades vegetales asociadas a la familia Piperaceae en la region del Sumapaz medio y bajo occidental” (Codigo 1101-05-17783) que busca identificar y comprobar en las especies prospectadas aplicaciones de interes en el sector agricola.
Paul Goetghebeur - One of the best experts on this subject based on the ideXlab platform.
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Verhuellia is a segregate lineage in Piperaceae: more evidence from flower, fruit and pollen morphology, anatomy and development.
Annals of Botany, 2010Co-Authors: Marie-stéphanie Samain, Alexander Vrijdaghs, Michael Hesse, Paul Goetghebeur, Francisco Jiménez Rodríguez, Alexandra Stoll, Christoph Neinhuis, Stefan WankeAbstract:†Background and Aims The perianthless Piperales, i.e. Saururaceae and Piperaceae, have simple reduced flowers strikingly different from the other families of the order (e.g. Aristolochiaceae). Recent molecular phylogenies proved Verhuellia to be the first branch in Piperaceae, making it a promising subject to study the detailed structure and development of the flowers. Based on recently collected material, the first detailed study since 1872 was conducted with respect to morphology, anatomy and development of the inflorescence, pollen ultrastructure and fruit anatomy. †Methods Original scanning electron microscopy (SEM), transmission electron microscopy (TEM) and light microscopy (LM) observations on Verhuellia lunaria were compared with those of Piperaceae, Saururaceae and fossils. †Key Results The inflorescence is an indeterminate spike with sessile flowers, each in the axil of a bract, developing in acropetal, helical succession. Flowers consist of two (occasionally three) stamens with basifixed tetrasporangiate anthers and latrorse dehiscence by a longitudinal slit. The gynoecium lacks a style but has 3‐4 stigma branches and a single, basal orthotropous and unitegmic ovule. The fruit is a drupe with large multicellular epidermal protuberances. The pollen is very small, inaperturate and areolate, with hemispherical microechinate exine elements. †Conclusions Despite the superficial similarities with different genera of Piperaceae and Saururaceae, the segregate position of Verhuellia revealed by molecular phylogenetics is supported by morphological, developmental and anatomical data presented here. Unitegmic ovules and inaperturate pollen, which are synapomorphies for the genus Peperomia, are also present in Verhuellia.
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verhuellia revisited unravelling its intricate taxonomic history and a new subfamilial classification of Piperaceae
Taxon, 2008Co-Authors: Marie-stéphanie Samain, Christoph Neinhuis, Stefan Wanke, Guido Mathieu, Paul GoetghebeurAbstract:The small poorly studied genus Verhuellia has usually been included in the genus Peperomia. However, a recent molecular study has revealed that Verhuellia is sister to all Piperaceae and neither part of, nor sister to Peperomia as expected. The genus currently includes three species, and with eight taxa described, has had a complex taxonomic history, including wrong synonymizations. Bence a thorough review of all publications mentioning Verhuellia and a detailed study of the herbarium specimens involved has been undertaken. In this paper we present a survey of the chaotic taxonomy of Verhuellia and clarify all nomenclatural obscurities. Additionally, as a consequence of the novel position of the genus, the traditional division of the family Piperaceae into two subfamilies Peperomioidease and Piperoideae is reconsidered.
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from forgotten taxon to a missing link the position of the genus verhuellia Piperaceae revealed by molecules
Annals of Botany, 2007Co-Authors: Stefan Wanke, Paul Goetghebeur, Christoph Neinhuis, Guido Mathieu, Liesbeth Vanderschaeve, Marie-stéphanie SamainAbstract:† Background and Aims The species-poor and little-studied genus Verhuellia has often been treated as a synonym of the genus Peperomia, downplaying its significance in the relationships and evolutionary aspects in Piperaceae and Piperales. The lack of knowledge concerning Verhuellia is largely due to its restricted distribution, poorly known collection localities, limited availability in herbaria and absence in botanical gardens and lack of material suitable for molecular phylogenetic studies until recently. Because Verhuellia has some of the most reduced flowers in Piperales, the reconstruction of floral evolution which shows strong trends towards reduction in all lineages needs to be revised. † Methods Verhuellia is included in a molecular phylogenetic analysis of Piperales (trnT-trnL-trnF and trnK/matK), based on nearly 6000 aligned characters and more than 1400 potentially parsimony-informative sites which were partly generated for the present study. Character states for stamen and carpel number are mapped on the combined molecular tree to reconstruct the ancestral states. † Key Results The genus Peperomia is generally considered to have the most reduced flowers in Piperales but this study shows that this is only partially true. Verhuellia, with almost equally reduced flowers, is not part of or sister to Peperomia as expected, but is revealed as sister to all other Piperaceae in all analyses, putting character evolution in this family and in the perianthless Piperales in a different light. A robust phylogenetic analysis including all relevant taxa is presented as a framework for inferring patterns and processes of evolution in Piperales and Piperaceae. † Conclusions Verhuellia is a further example of how a molecular phylogenetic study can elucidate the relationships of an unplaced taxon. When more material becomes available, it will be possible to investigate character evolution in Piperales more thoroughly and to answer some evolutionary questions concerning Piperaceae.
Massuo J. Kato - One of the best experts on this subject based on the ideXlab platform.
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antifungal piperamides from piper mollicomum kunth Piperaceae
Eclética Química Journal, 2018Co-Authors: Herlle Aparecido Da Silva, Clécio S. Ramos, Massuo J. Kato, Lydia F Yamaguchi, Maria Claudia Marx Young, Andre Marcio Araujo Amorim, Ronan BatistaAbstract:The phytochemical study on dichlorometane extracts of leaves, stem and roots of Piper mollicomum Kunth (Piperaceae) led to isolation of the known piperamides tembamide (1), ( R )-(-)-tembamide acetate (2) and riparin I (3). Compounds 1 and 2 displayed moderate in vitro antifungal activity against Cladosporium cladosporioides (5.0 μg) and Cladosporium sphaerospermum (1.0 μg) by direct bioautographic analyses and compound 3 was inactive up to 100.0 μg.
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Proteomic profile of Piper tuberculatum (Piperaceae)
Brazilian Journal of Biology, 2017Co-Authors: Fernando Cotinguiba, Massuo J. Kato, Silvia N. López, Ilara Gabriela Frasson Budzinski, Carlos Alberto Labate, Maysa FurlanAbstract:: Piper tuberculatum (Piperaceae) is a species that accumulates especially amides as secondary metabolites and several biological activities was previously reported. In this article, we report a proteomic study of P. tuberculatum. Bidimensional electrophoresis (2D SDS-PAGE) and mass spectrometry (ESI-Q-TOF) were used in this study. Over a hundred spots and various peptides were identified in this species and the putative functions of these peptides related to defense mechanism as biotic and abiotic stress were assigned. The information presented extend the range of molecular information of P. tuberculatum.
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biotransformation of 4 nerolidylcatechol by heraclides brasiliensis lepidoptera papilionidae reduces the toxicity of piper umbellata Piperaceae
Chemoecology, 2012Co-Authors: Clécio S. Ramos, Massuo J. Kato, Luciano De J Souza, Ronan BatistaAbstract:Heraclides brasiliensis (Lepidoptera: Papilion- idae) larvae feed preferably on Piperaceae, foraging successfully on leaf tissues even though species of this contain high levels of secondary metabolites such as amides and lignans, associated with diverse biological activities including insecticidal properties. Studies examining the metabolism of chemical constituents in Piperaceae by insects are rare. In this study, we characterized the metab- olites of 4-nerolidylcatechol (4-NC), the major constituent of Piper umbellata (Piperaceae), and E-2,3-dihydro-3-(3,4- dihydroxyphenyl)farnesoic acid, compounds from fecal material of H. brasiliensis larvae fed a diet containing only P. umbellata leaves. The biotransformed product was also detected in larval and pupal tissues. Moreover, we observed deactivation of the toxicity of P. umbellata leaves against brine shrimp after their metabolism in H. brasiliensis larvae from a LC50 of 523.3 to 3,460.7 lg/mL. This deactivation is closely associated with the biotransformation of 4-NC to E- 2,3-dihydro-3-(3,4-dihydroxyphenyl)farnesoic acid, which showed LC50 of 8.0 and (1,000 lg/mL, respectively.
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molluscicidal and ovicidal activities of plant extracts of the Piperaceae on biomphalaria glabrata say 1818
Journal of Helminthology, 2011Co-Authors: Ludmila Nakamura Rapado, Massuo J. Kato, Lydia F Yamaguchi, Eliana Nakano, Fernanda Pires Ohlweiler, Carlos Alberto De Braganca Pereira, Toshie KawanoAbstract:: Schistosomiasis is a tropical disease caused by Schistosoma and occurs in 54 countries, mainly in South America, the Caribbean region, Africa and the eastern Mediterranean. Currently, 5 to 6 million Brazilian people are infected and 30,000 are under infection risk. Typical of poor regions, this disease is associated with the lack of basic sanitation and very frequently to the use of contaminated water in agriculture, housework and leisure. One of the most efficient methods of controlling the disease is application of molluscicides to eliminate or to reduce the population of the intermediate host snail Biomphalaria glabrata. Studies on molluscicidal activity of plant extracts have been stimulated by issues such as environmental preservation, high cost and recurrent resistance of snails to synthetic molluscicides. The aim of this study was to determine the molluscicide action of extracts from Piperaceae species on adult and embryonic stages of B. glabrata. Fifteen extracts from 13 Piperaceae species were obtained from stems, leaves and roots. Toxicity of extracts was evaluated against snails at two different concentrations (500 and 100 ppm) and those causing 100% mortality at 100 ppm concentration were selected to obtain the LC₉₀ (lethal concentration of 90% mortality). Piper aduncum, P. crassinervium, P. cuyabanum, P. diospyrifolium and P. hostmannianum gave 100% mortality of adult snails at concentrations ranging from 10 to 60 ppm. These extracts were also assayed on embryonic stages of B. glabrata and those from P. cuyabanum and P. hostmannianum showed 100% ovicidal action at 20 ppm.
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Insect feeding preferences on Piperaceae species observed in São Paulo city, Brazil
Revista Brasileira De Entomologia, 2008Co-Authors: Sergio Antonio Vanin, Clécio S. Ramos, Elsie F. Guimarães, Massuo J. KatoAbstract:Insect feeding preferences on Piperaceae species observed in Sao Paulo city, Brazil. Piperaceae species have been placed among the basal angiosperm and are adapted to a variety of habitats including moist forests, secondary vegetation and dry high lands. The major anatomical/morphology features are of small trees, vines, and shrubs for Piper species, while the epiphytic and succulent characteristics are predominant forms among Peperomia species. Their secondary chemistry can be mostly represented by amides, phenylpropanoids/lignoids, and chromenes in addition to a phletoria of biosynthetically mixed-origin secondary compounds. Although several amides and lignans are known as insecticides, several phytophagous insects, among which some considered pests of economic importance, have been observed feeding vigorously on Piperaceae species. Herein we describe the feeding preferences of fourteen phytophagous species of Coleoptera, Lepidoptera and Hemiptera over approximately fifty Piperaceae species observed in Sao Paulo, SP, Brazil, in a long-term basis.
