scholarly journals Pollen morphology and study of the visitors (Hymenoptera, Apidae) of Solanum stramoniifolium Jacq. (Solanaceae) in Central Amazon

2004 ◽  
Vol 18 (3) ◽  
pp. 653-657 ◽  
Author(s):  
Alexandre Coletto da Silva ◽  
Valdely Ferreira Kinupp ◽  
Maria Lucia Absy ◽  
Warwick Estevam Kerr
Keyword(s):  
South America ◽  
Preliminary Data ◽  
Pollen Morphology ◽  
Stingless Bees ◽  
Floral Biology ◽  
Wide Distribution ◽  
Plant Interactions ◽  
Potential Source ◽  
The Family ◽  
Solanaceae Family

The Solanaceae family has a wide distribution, mainly in the tropical and subtropical areas of South America. Solanum L. is one of the most important genera of the family with approximately 1,200 species. The objective of this work was to study the floral biology, pollen morphology as well as to investigate the bee visitors of S. stramoniifolium. Preliminary data indicate the presence of one species of stinging bee and four species of stingless bees as visitors to S. stramoniifolium. The pollen of S. stramoniifolium is tricolporate and psilate or without ornamentation. In a word, S. stramoniifolium constitutes a potential source of pollen for different species of bees with and without sting, providing an interesting field for germination studies, insect-plant interactions and floral biology that are already under way.

Filogenia Preliminar do Gênero Rhabdocaulon Epling

UNICIÊNCIAS ◽  
2017 ◽  
Vol 21 (2) ◽  
pp. 71
Author(s):  
Giovanni Colussi ◽  
Maria Eduarda Venassi ◽  
Gustavo Agostini ◽  
Marcelo Rossato
Keyword(s):  
South America ◽  
Traditional Method ◽  
Wide Distribution ◽  
Economic Importance ◽  
Preliminary Evaluation ◽  
Aromatic Plants ◽  
Microbial Inhibition ◽  
The Family ◽  
Long Time ◽  
Genomic Material

O gênero Rhabdocaulon é um grupo de plantas aromáticas da família Lamiaceae, conhecida por ter espécies com enorme importância econômica pelo emprego de seus óleos essenciais e atividade biológica que esses possuem. Plantas dessa família vêm sendo utilizadas há muito tempo devido às características olfativas e até mesmo capacidade de exercer inibição microbiana em determinados testes com micro-organismos. Esse gênero compreende inúmeros indivíduos no decorrer do Sul da América. O estudo populacional de espécies vegetais vem sendo cada vez mais abordado, a fim de compreender melhor as interações evolutivas que determinadas espécies desenvolveram com o passar do tempo e especiações. As extrações de DNA foram executadas com método tradicional para extração de material genônico vegetal com auxílio de CTAB. Após a extração, as regiões ITS de rDNA e plastidial trnL-F foram amplificadas e sequenciadas. O trabalho visou avaliação preliminar da separação genética de algumas espécies dentro desse gênero, já que o grupo apresenta distribuição ampla na América do Sul. Com a avaliação das sequências, pode-se observar polimorfismo específico do grupo.Palavras-chave: Filogenia Preliminar. Lamiaceae. Rhabdocaulon.AbstractThe genus Rhabdocaulon is a group of aromatic plants of the family Lamiaceae, known for having species of enormous economic importance due to use of their essential oils and biological activity that they have. Plants of this family have been used for a long time because of their olfactory characteristics and even ability to exert microbial inhibition in certain tests with microorganisms. This genus comprises countless individuals throughout the South America. The population study of plant species has been increasingly approached in order to better understand the evolutionary interactions that certain species have developed as time goes by and speciations. The DNA extractions were performed using a traditional method for extracting plant genomic material with the aid of CTAB. After extraction, the ITS rDNA and plastid trnL-F regions were amplified and sequenced. The focus of the work was the preliminary evaluation of the genetic separation of some species within this genus, since the group has a wide distribution in South America. With the evaluation of the sequences, specific polymorphism of the group can be observed.Keywords: Preliminary Philogeny. Lamiacea. Rhabdocaulon.

scholarly journals Studies on the Systematics and Anatomy of New Zealand Earthworms

2021 ◽  
Author(s):  
◽  
Kenneth Ernest Lee
Keyword(s):  
South Africa ◽  
New Zealand ◽  
South America ◽  
Salt Water ◽  
Wide Distribution ◽  
Late Nineteenth Century ◽  
The Family ◽  
America South ◽  
Late Nineteenth ◽  
Original Area

<p>The study of New Zealand earthworms has been extensive, but has been confined principally to the systematics of the group. Only one family of the Oligochaeta, the Megascolecidae, is represented in the endemic fauna, but within this family, over eighty species, belonging to seventeen genera, have been recorded and described. Apart from the Megascolecidae, certain species, lumbricids, worldwide in their distribution, are present and are regarded as having been introduced through the agency of man. The family Megascolecidae is confined almost entirely to the Southern hemisphere, and the southern regions of the Northern hemisphere, and within these regions, the greatest number of species occur in New Zealand, South America, South Africa, and Australia. When the distribution of the Megascolecidae became known, in the late nineteenth century, its sporadic nature evoked a great deal of interest among zoo-geographers, since earthworms, being terrestrial, and unable to tolerate immersion in salt water, form an ideal basis for the consideration of dispersal problems among terrestrial animals as a whole. The interest thus aroused in the Megascolecidae led to much work on the group in New Zealand. Michaelsen (1913 (b)) accounts for the predominance of the Megascolecidae in the southern continental areas by postulating that originally the family had a wide distribution in the nothern and southern continents, and that other families (e.g. the Glossoscolecidae), evolved more recently in the northern continents, have gradually superseded the Megascolecidae in all but the most remote regions of their original area of distribution. Matthew (1915) came to a similar conclusion in regard to the origin of present southern faunas in the course of his work on the distribution and evolution of the Mammalia. Evidence in favour of Michaelsen's conclusions can also be derived from the distribution of slugs, spiders, Collembola, Coleoptera, littoral Echinoderms, Polychaeta and Brachiopoda in the southern land masses.</p>

scholarly journals Studies on the Systematics and Anatomy of New Zealand Earthworms

2021 ◽  
Author(s):  
◽  
Kenneth Ernest Lee
Keyword(s):  
South Africa ◽  
New Zealand ◽  
South America ◽  
Salt Water ◽  
Wide Distribution ◽  
Late Nineteenth Century ◽  
The Family ◽  
America South ◽  
Late Nineteenth ◽  
Original Area

<p>The study of New Zealand earthworms has been extensive, but has been confined principally to the systematics of the group. Only one family of the Oligochaeta, the Megascolecidae, is represented in the endemic fauna, but within this family, over eighty species, belonging to seventeen genera, have been recorded and described. Apart from the Megascolecidae, certain species, lumbricids, worldwide in their distribution, are present and are regarded as having been introduced through the agency of man. The family Megascolecidae is confined almost entirely to the Southern hemisphere, and the southern regions of the Northern hemisphere, and within these regions, the greatest number of species occur in New Zealand, South America, South Africa, and Australia. When the distribution of the Megascolecidae became known, in the late nineteenth century, its sporadic nature evoked a great deal of interest among zoo-geographers, since earthworms, being terrestrial, and unable to tolerate immersion in salt water, form an ideal basis for the consideration of dispersal problems among terrestrial animals as a whole. The interest thus aroused in the Megascolecidae led to much work on the group in New Zealand. Michaelsen (1913 (b)) accounts for the predominance of the Megascolecidae in the southern continental areas by postulating that originally the family had a wide distribution in the nothern and southern continents, and that other families (e.g. the Glossoscolecidae), evolved more recently in the northern continents, have gradually superseded the Megascolecidae in all but the most remote regions of their original area of distribution. Matthew (1915) came to a similar conclusion in regard to the origin of present southern faunas in the course of his work on the distribution and evolution of the Mammalia. Evidence in favour of Michaelsen's conclusions can also be derived from the distribution of slugs, spiders, Collembola, Coleoptera, littoral Echinoderms, Polychaeta and Brachiopoda in the southern land masses.</p>

Description of the male, redescription of the female and new records of Odo patricius Simon, 1900 (Araneae: Zoridae)

Zootaxa ◽  
2012 ◽  
Vol 3527 (1) ◽  
pp. 79
Author(s):  
ANDRES TAUCARE-RIOS ◽  
ANTONIO D. BRESCOVIT
Keyword(s):  
South America ◽  
Central America ◽  
West Indies ◽  
Type Species ◽  
New Records ◽  
Wide Distribution ◽  
Number Of Species ◽  
The Family ◽  
New Material ◽  
America South

The family Zoridae (F.O. Pickard-Cambridge, 1893) is currently represented by 14 genera and 79 species distributed worldwide (Platnick, 2012), of which only the genera Xenoctenus Mello-Leitão, 1938 and Odo Keyserling, 1887 are present in Americas. Xenoctenus is represented by four species, all endemic to Argentina, while Odo has, so far, a total of 27 species distributed in Central America, South America, West Indies and Australia (Platnick, 2012). The type species of Odo is O. lenis Keyserling, 1887, a specimen female described from Nicaragua. The genus Odo has never been revised and given its wide distribution and number of species, it is probably a polyphyletic genus and a complete revision is required. Also, no new material of O. lenis or O. patricius has been described since 1900.

Family-Planning Knowledge and Attitude Surveys in Pakistan (Review Article)

1964 ◽  
Vol 4 (2) ◽  
pp. 332-355 ◽  
Author(s):  
Khurshid Haroon ◽  
Yasmin Azra Jan
Keyword(s):  
Family Planning ◽  
Preliminary Data ◽  
Review Article ◽  
Research Projects ◽  
Family Planning Programme ◽  
The Family ◽  
National Family ◽  
National Family Planning ◽  
Knowledge And Attitude ◽  
The Government

Very little of the intense interest and activity in the field of family planning in Pakistan has come up in the form of publications. Since the formation of the Family Planning Association of Pakistan in 1953 and the initiative of the government in promoting a national family-planning programme in its Second Five-Year Plan, relatively few reports have been printed. Most of what has been written in Pakistan about family planning has either been reported at conferences abroad or published in foreign journals, or submitted as graduate dissertations at universities within the country and abroad1. While numerous papers presented at conferences in Pakistan have been given limited circulation in mimeographed form2, much of the preliminary data, emanating from most of the action-research projects in progress, are held up till substantive demographic changes are measured and approaches evaluated accordingly.

scholarly journals Targeted Isolation of Xenicane Diterpenoids from Taiwanese Soft Coral Asterospicularia laurae

Marine Drugs ◽  
2021 ◽  
Vol 19 (3) ◽  
pp. 123
Author(s):  
Yu-Chi Lin ◽  
Yi-Jen Chen ◽  
Shu-Rong Chen ◽  
Wan-Ju Lien ◽  
Hsueh-Wei Chang ◽  
...  
Keyword(s):  
Cytotoxic Effect ◽  
Soft Coral ◽  
Ethanol Extract ◽  
2D Nmr ◽  
Ionization Mass ◽  
Spectroscopic Analyses ◽  
Potential Source ◽  
First Case ◽  
The Family ◽  
Mcf 7

Application of LC-MS/MS-based molecular networking indicated the ethanol extract of octocoral Asterospicularia laurae is a potential source for the discovery of new xenicane derivatives. A natural product investigation of this soft coral resulted in the isolation of four new xenicane diterpenoids, asterolaurins O‒R (1‒4), together with six known compounds, xeniolide-A (5), isoxeniolide-A (6), xeniolide-B (7), 7,8-epoxyxeniolide-B (8), 7,8-oxido-isoxeniolide-A (9), and 9-hydroxyxeniolide-F (10). The structures of isolated compounds were characterized by employing spectroscopic analyses, including 2D-NMR (COSY, HMQC, HMBC, and NOESY) and high-resolution electrospray ionization mass spectrometry (HRESIMS). Asterolaurin O is the first case of brominated tricarbocyclic type floridicin in the family Xeniidae. Concerning bioactivity, the cytotoxic activity of those isolates was evaluated. As a result, compounds 1 and 2 demonstrated a selective cytotoxic effect against the MCF-7 cell line at IC50 of 14.7 and 25.1 μM, respectively.

Reinterpretation of a Chilean pterosaur and the occurrence of Dsungaripteridae in South America

2000 ◽  
Vol 137 (1) ◽  
pp. 19-25 ◽  
Author(s):  
DAVID M. MARTILL ◽  
EBERHARD FREY ◽  
GUILLERMO CHONG DIAZ ◽  
C. M. BELL
Keyword(s):  
South America ◽  
New Genus ◽  
New Genus And Species ◽  
The Family

A fragmentary specimen of pterosaur originally assigned to the genus Pterodaustro Bonaparte, 1970 is reassessed. The presence of a sagittal dorsal cranial crest on a fragment of nasopreorbital arcade with linear vertical trabeculae and the occurrence of alveolar protuberances on the os dentale indicate the new specimen has similarities with crested pterodactyloid pterosaurs of the family Ctenochasmatidae, and with members of the Dsungaripteridae. The presence of alveolar protuberances allows us to assign the specimen to the Dsungaripteridae. It forms the basis of a new genus and species, Domeykodactylus ceciliae.

scholarly journals Ten new species of Cladonia (Cladoniaceae, Lichenized Fungi) from the Guianas and Venezuela, South America

Phytotaxa ◽  
2013 ◽  
Vol 93 (1) ◽  
pp. 25 ◽  
Author(s):  
TEUVO AHTI ◽  
HARRIE J. M. SIPMAN
Keyword(s):  
New Species ◽  
South America ◽  
Lichenized Fungi ◽  
The Family ◽  
Northern South America ◽  
The Guianas

The diversity of the lichen family Cladoniaceae in the Neotropics is apparently underestimated. A revision of the family for the Flora of the Guianas resulted in the description of 10 species new to science from Northern South America: Cladonia cayennensis; Cladonia flavocrispata; Cladonia isidiifera; Cladonia maasii; Cladonia mollis; Cladonia persphacelata; Cladonia recta; Cladonia rupununii; Cladonia subsphacelata; Cladonia termitarum.

Phylogenetics, classification, and biogeography of the Neotropical forest lizards (Squamata, Diploglossidae)

Zootaxa ◽  
2021 ◽  
Vol 4974 (2) ◽  
pp. 201-257
Author(s):  
MOLLY SCHOOLS ◽  
S. BLAIR HEDGES
Keyword(s):  
South America ◽  
Tropical Forests ◽  
Morphological Data ◽  
Undescribed Species ◽  
Caribbean Islands ◽  
Neotropical Forest ◽  
The Family ◽  
Middle America ◽  
America South ◽  
Early Cenozoic

Lizards of the family Diploglossidae occur in moist, tropical forests of Middle America, South America, and Caribbean islands. Our analyses based on new molecular and morphological data indicate that the widely distributed genera Celestus Gray, 1839 and Diploglossus Wiegmann, 1834 are paraphyletic. We restrict the former to Caribbean islands and the latter to South America and Caribbean islands. We assign species in Middle America, formerly placed in Celestus and Diploglossus, to Advenus gen. nov., Mesoamericus gen. nov., and Siderolamprus Cope, 1861. We assign species on Caribbean islands, formerly placed in Celestus, to Caribicus gen. nov., Comptus gen. nov., Celestus, Panolopus Cope, 1862, Sauresia Gray, 1852, and Wetmorena Cochran, 1927. Our phylogenetic tree supports three major clades in the family: Celestinae subfam. nov. (Advenus gen. nov., Caribicus gen. nov., Comptus gen. nov., Celestus, Panolopus, Sauresia, and Wetmorena), Diploglossinae (Diploglossus and Ophiodes Wagler, 1828), and Siderolamprinae subfam. nov. (Mesoamericus gen. nov. and Siderolamprus). Our timetree indicates that the diploglossid lineage originated in the early Cenozoic and established three major centers of diversification in the Americas: Middle America (siderolamprines and one celestine), South America (diploglossines), and Caribbean islands (celestines and diploglossines). The majority of threatened species are on Caribbean islands, with the major threats being deforestation and predation by the introduced mongoose. Molecular and morphological data indicate that there are many undescribed species in this family of lizards. 

Synchrony and diachrony of postverbal negation in Jodï-Sáliban

2021 ◽  
Author(s):  
Jorge Emilio Rosés Labrada
Keyword(s):  
Comparative Analysis ◽  
South America ◽  
Language Family ◽  
Depth Analysis ◽  
The Family ◽  
Comparative Treatment

Abstract This article proposes a detailed comparative treatment of negation in the Jodï-Sáliban language family (Venezuela-Colombia, Northwest Amazonia, South America), which consists of four languages: Jodï [yau], Sáliba [slc], Piaroa [pid] and Mako [wpc]. This comparative analysis of negation strategies across the four languages in the family not only offers an overview of negation strategies in this language family but also allows for conclusions to be drawn on the cognacy of the different constructions and markers as well as on the sources of the main negation strategies. Specifically, I show that, even though certain markers are not cognate, negation in these languages has – as far back as the documentation goes – always been postverbal and suggest that postverbal negation can be diachronically stable. This research thus offers an in-depth analysis of negation in Jodï-Sáliban, a language family that remains underdescribed, and, crucially, contributes to our understanding of postverbal negation and its sources.

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